TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15168
Valid UntilInstrumentMethodAnalyte
3 G WSC WATER TREATMENT PLANTNAAccreditation ID:
TX1500006(512) 573-7939Phone Number:Timothy YoungContact Name:
Approval Date: 08/23/2018
Hach Digital Titrator Model 169002320BAlkalinity 08/23/2021
Hach Pocket Chlor II4500CL-GFree Chlorine 08/23/2021
Hach Sension 1150.1pH 08/23/2021
Hach Sension 12550Temperature 08/23/2021
Hach 2100P180.1Turbidity 08/23/2021
Lab ID: AL0720059
Valid UntilInstrumentMethodAnalyte
3D BUNKHOUSENAAccreditation ID:
TX0720059(254) 485-0973Phone Number:Jim Bob BerryContact Name:
Approval Date: 12/06/2018
Oakton AO 35613-22 pH 6+4500H-BpH 12/06/2021
Oakton AO 35613-22 pH 6+2550Temperature 12/06/2021
Lab ID: AL0200630
Valid UntilInstrumentMethodAnalyte
6711 HIGHWAY 332NAAccreditation ID:
TX0200630(713) 840-8200Phone Number:Libby SimonsonContact Name:
Approval Date: 11/12/2020
A&B LabsContract LabAlkalinity 11/12/2023
A&B LabsContract LabCalcium 11/12/2023
A&B LabsContract LabConductivity 11/12/2023
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 11/12/2023
A&B LabsContract LabHardness 11/12/2023
Hach Pocket Colorimeter II365.1Orthophosphate 11/12/2023
Hanna 9125150.1pH 11/12/2023
Hanna 91252550Temperature 11/12/2023
Hach Pocket Colorimeter DR3004500CL-GTotal Chlorine 11/12/2023
Lab ID: AL0008484
Valid UntilInstrumentMethodAnalyte
A&B Laboratory NAAccreditation ID:
(940) 723-8697Phone Number:Ron MullinsContact Name:
Approval Date: 06/04/2021
A&B LaboratoryContract LabPOE Chlorite 06/04/2022
Lab ID: AL0110022
Valid UntilInstrumentMethodAnalyte
ACME BRICK ELGIN PLANTNAAccreditation ID:
TX0110022(512) 461-1114Phone Number:Don NowakContact Name:
Approval Date: 01/17/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/17/2022
Monday, August 2, 2021 Page 1 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1012155
Valid UntilInstrumentMethodAnalyte
ADAMS PLAZANAAccreditation ID:
TX1012155(713) 540-1084Phone Number:JEREK MIGGINSContact Name:
Approval Date: 01/03/2019
Jellas pH Meter4500H-BpH 01/03/2022
Thermometer2550Temperature 01/03/2022
Hach Pocket Colorimeter4500CL-GTotal Chlorine 01/03/2022
Lab ID: ALTP21644
Valid UntilInstrumentMethodAnalyte
AGUA SUD - ABRAM SWTPNAAccreditation ID:
TX1080022(956) 240-7918Phone Number:Aaron CastilloContact Name:
Approval Date: 05/18/2021
Hach Alkalinity Test Kit, Model AL-DT
2320BAlkalinity 05/18/2024
Kemio Chlorite KitCHLORDIOX PLUSChlorine Dioxide 05/18/2024
Hach DR3004500CL-GFree Chlorine 05/18/2024
Sension+ pH3 Basic Laboratory Meter
150.1pH 05/18/2024
Kemio Chlorite KitCHLORDIOX PLUSPOE Chlorite 05/18/2024
Sension+ pH3 Basic Laboratory Meter
2550Temperature 05/18/2024
Hach DR3004500CL-GTotal Chlorine 05/18/2024
Hach 2100N Turbidimeter180.1Turbidity 05/18/2024
Lab ID: ALTP15183
Valid UntilInstrumentMethodAnalyte
AGUA SUD - FM 492 SWTPNAAccreditation ID:
TX1080022(956) 240-7918Phone Number:Aaron CastilloContact Name:
Approval Date: 05/18/2021
Hach Alkalinity Test Kit, Model AL-DT
2320BAlkalinity 05/18/2024
Kemio Chlorite KitCHLORDIOX PLUSChlorine Dioxide 05/18/2024
Hach DR3004500CL-GFree Chlorine 05/18/2024
Sension+ pH3 Basic Laboratory Meter
150.1pH 05/18/2024
Kemio Chlorite KitCHLORDIOX PLUSPOE Chlorite 05/18/2024
Sension+ pH3 Basic Laboratory Meter
2550Temperature 05/18/2024
Hach DR3004500CL-GTotal Chlorine 05/18/2024
Hach 2100Q Portable Turbidimeter180.1Turbidity 05/18/2024
Monday, August 2, 2021 Page 2 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15195
Valid UntilInstrumentMethodAnalyte
AGUA SUD - HAVANA SWTPNAAccreditation ID:
TX1080022(956) 240-7918Phone Number:Aaron CastilloContact Name:
Approval Date: 05/18/2021
Hach Alkalinity Test Kit, Model AL-DT
2320BAlkalinity 05/18/2024
Kemio Chlorite KitCHLORDIOX PLUSChlorine Dioxide 05/18/2024
Hach DR3004500CL-GFree Chlorine 05/18/2024
Sension+ pH3 Basic Laboratory Meter
150.1pH 05/18/2024
Kemio Chlorite KitCHLORDIOX PLUSPOE Chlorite 05/18/2024
Sension+ pH3 Basic Laboratory Meter
2550Temperature 05/18/2024
Hach DR3004500CL-GTotal Chlorine 05/18/2024
Hach TU5200 Turbidimeter180.1Turbidity 05/18/2024
Lab ID: AL1011172
Valid UntilInstrumentMethodAnalyte
ALBEMARLE HOUSTON PLANTNAAccreditation ID:
TX1011172(713) 740-1710Phone Number:Doug ThompsonContact Name:
Approval Date: 06/25/2021
A & B Environmental Services, Inc.Contract LabAlkalinity 06/25/2024
A & B Environmental Services, Inc.Contract LabCalcium 06/25/2024
A & B Environmental Services, Inc.Contract LabConductivity 06/25/2024
Hach DR9004500CL-GFree Chlorine 06/25/2024
Thermo Scientific Symphony pH Meter
4500H-BpH 06/25/2024
A & B Environmental Services, Inc.Contract LabPhosphate 06/25/2024
A & B Environmental Services, Inc.Contract LabSilica 06/25/2024
Thermo Scientific Symphony pH Meter
2550Temperature 06/25/2024
Lab ID: AL0290014
Valid UntilInstrumentMethodAnalyte
ALCOA POINT COMFORT OPERATIONS NAAccreditation ID:
TX0290014(361) 652-2060Phone Number:Brent MooreContact Name:
Approval Date: 02/12/2021
HACH Pocket Color IIHACH 10260Free Chlorine 02/12/2024
Lab ID: AL0450087
Valid UntilInstrumentMethodAnalyte
ALLEYTON WATER SYSTEMNAAccreditation ID:
TX0450087(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 02/05/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 02/05/2024
Hach Pocket Pro Plus Testers150.1pH 02/05/2024
Hach Pocket Pro Plus Testers/NIST2550Temperature 02/05/2024
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 02/05/2024
Monday, August 2, 2021 Page 3 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1930006
Valid UntilInstrumentMethodAnalyte
ALTO FRIO BAPTIST ENCAMPMENTNAAccreditation ID:
TX1930006(830) 232-5271Phone Number:Travis NelsonContact Name:
Approval Date: 08/28/2018
Pocket Colorimeter4500CL-GFree Chlorine 08/28/2021
Pocket Pro pH150.1pH 08/28/2021
Pocket Pro pH2550Temperature 08/28/2021
Hach TU5300SC Turbidity MeterHACH 10258Turbidity 08/28/2021
Lab ID: ALTP15030
Valid UntilInstrumentMethodAnalyte
AMARILLO MUNICIPAL WATER SYSTEM - OSAGE SWTP NAAccreditation ID:
TX1880001(806) 378-3019Phone Number:Sean BeachContact Name:
Approval Date: 06/03/2020
TITRATOR/SULFURIC ACID2320BAlkalinity 06/03/2023
HQ411D Probe and Instrument/SL1000
2510BConductivity 06/03/2023
HACH 3900/DR900/POCKET4500CL-GFree Chlorine 06/03/2023
HACH MODEL HQ411D4500H-BpH 06/03/2023
NIST THERMOMETER/ATC PROBE2550Temperature 06/03/2023
C.O.A Environmental LabContract LabTOC 06/03/2023
HACH TU5300/sc200 CONT2130BTurbidity 06/03/2023
Ana-Lab CorporationContract LabUV254 06/03/2023
Lab ID: ALTP411614
Valid UntilInstrumentMethodAnalyte
AMERICAN LEGION MIA POST 231 WTP NAAccreditation ID:
TX0910153(903) 785-2353Phone Number:Gary WintersContact Name:
Approval Date: 04/09/2020
HACH - Colorimeter II - LR/HR4500CL-GFree Chlorine 04/09/2023
HACH - Colorimeter II - LR/HR4500CL-GTotal Chlorine 04/09/2023
Lab ID: AL1460005
Valid UntilInstrumentMethodAnalyte
AMES MINGLEWOOD WSCNAAccreditation ID:
TX1460005(281) 290-0704Phone Number:Steve GrychkaContact Name:
Approval Date: 09/21/2020
DR900HACH 10260Free Chlorine 09/21/2021
Lab ID: AL1690023
Valid UntilInstrumentMethodAnalyte
AMON G CARTER LAKE WSCNAAccreditation ID:
TX1690023(940) 841-2961Phone Number:Ross HamiltonContact Name:
Approval Date: 10/22/2019
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 10/22/2022
Lab ID: AL0026823
Valid UntilInstrumentMethodAnalyte
ANTEA GROUPNAAccreditation ID:
NA(512) 840-7676Phone Number:Stafford JohnsonContact Name:
Approval Date: 06/24/2021
Pocket Colorimeter II, MR4500CL-GFree Chlorine 12/31/2021
Hach Pocket Pro+pH150.1pH 12/31/2021
Hach Pocket Pro+pH2550Temperature 12/31/2021
Pocket Colorimeter II, MR4500CL-GTotal Chlorine 12/31/2021
Monday, August 2, 2021 Page 4 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0004400
Valid UntilInstrumentMethodAnalyte
AQUA TEXAS, INC.NAAccreditation ID:
(512) 990-4400Phone Number:Scot FoltzContact Name:
56101
Approval Date: 01/21/2021
Oakton pH 6+4500H-BpH 01/21/2022
Thomas Scientific 1230N272550Temperature 01/21/2022
Lab ID: AL0110013
Valid UntilInstrumentMethodAnalyte
AQUA WSCT104704309Accreditation ID:
TX0110013(512) 581-0705Phone Number:Steve DunnContact Name:
Approval Date: 05/02/2019
Pocket II4500CL-GFree Chlorine 05/02/2022
DR8904500CL-GFree Chlorine 05/02/2022
Hach 39004500CL-GFree Chlorine 05/02/2022
DR9004500CL-GFree Chlorine 05/02/2022
Hanna4500H-BpH 05/02/2022
Hach Pocket Pro4500H-BpH 05/02/2022
Hach Sension 24500H-BpH 05/02/2022
Hanna2550Temperature 05/02/2022
Hach Pocket Pro2550Temperature 05/02/2022
Hach Sension 22550Temperature 05/02/2022
DR 3900HACH 10260Total Chlorine 05/02/2022
Lab ID: ALTP14911
Valid UntilInstrumentMethodAnalyte
AQUILLA WSD SWTPNAAccreditation ID:
TX1090068 (254) 582-8947Phone Number:Brad DanielsContact Name:
Approval Date: 07/13/2021
HACH HQ 440d2320BAlkalinity 07/13/2024
KemioCHLORDIOX PLUSChlorine Dioxide 07/13/2024
HACH 39004500CL-GFree Chlorine 07/13/2024
HACH HQ 440d150.1pH 07/13/2024
Ana-Lab CorporationContract LabPOE Chlorite 07/13/2024
Thermometer2550Temperature 07/13/2024
City of Waco Regional Water LabContract LabTOC 07/13/2024
HACH 39004500CL-GTotal Chlorine 07/13/2024
HACH TU 5200HACH 10258Turbidity 07/13/2024
City of Waco Regional Water LabContract LabUV254 07/13/2024
Lab ID: AL0040042
Valid UntilInstrumentMethodAnalyte
ARANSAS COUNTY MUD 1NAAccreditation ID:
TX0040042(361) 729-5922Phone Number:Tim DenisonContact Name:
Approval Date: 12/02/2019
HACH sensION pH Meter4500H-BpH 12/02/2022
HACH sensION pH Meter2550Temperature 12/02/2022
Monday, August 2, 2021 Page 5 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0050001
Valid UntilInstrumentMethodAnalyte
ARCHER CITY WATER TREATMENT PLANT Accreditation ID:
TX0050001(940) 781-5270Phone Number:John FluhartyContact Name:
Approval Date: 6/4/2021
Titration2320BAlkalinity 06/04/2024
ChlordioX Plus PalineCHLORDIOX PLUSChlorine Dioxide 06/04/2024
Pocket Colorimeter II4500CL-GFree Chlorine 06/04/2024
HQ40d150.1pH 06/04/2024
ChlordioX Plus PalineCHLORDIOX PLUSPOE Chlorite 06/04/2024
HQ40d2550Temperature 06/04/2024
Pocket Colorimeter II4500CL-GTotal Chlorine 06/04/2024
HACH TU5200HACH 10258Turbidity 06/04/2024
Lab ID: ALTP2359
Valid UntilInstrumentMethodAnalyte
ARROYO BRAVO WATER SUPPLY WTP NAAccreditation ID:
TX0460020(281) 827-4285Phone Number:Daniel RybickiContact Name:
Approval Date: 03/23/2020
HACH - Colorimeter II - LR/MR/HR4500CL-GFree Chlorine 03/23/2023
HACH - Colorimeter II - LR/MR/HR4500CL-GTotal Chlorine 03/23/2023
Lab ID: AL0700075
Valid UntilInstrumentMethodAnalyte
ASH GROVE CEMENT COMPANYNAAccreditation ID:
TX0700075(972) 723-7231Phone Number:Francisco PintoContact Name:
Approval Date: 05/31/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 05/31/2022
Lab ID: AL0150040
Valid UntilInstrumentMethodAnalyte
ATASCOSA RURAL WSCNAAccreditation ID:
TX0150040(210) 622-3901Phone Number:Mike FernandezContact Name:
Approval Date: 04/29/2019
Hach Pocket Colorimeter IIHACH 10260Free Chlorine 04/29/2022
Lab ID: AL0270042
Valid UntilInstrumentMethodAnalyte
AUSTIN AQUA SYSTEMNAAccreditation ID:
TX0270042(830) 693-2963Phone Number:Ricky L. RoweContact Name:
Approval Date: 04/09/2020
LCRA ELSContract LabAlkalinity 04/09/2023
LCRA ELSContract LabCalcium 04/09/2023
LCRA ELSContract LabConductivity 04/09/2023
HACH Pocket Colorimeter II4500CL-GFree Chlorine 04/09/2023
Oakton pH Testr 304500H-BpH 04/09/2023
Standard Digital Thermometer2550Temperature 04/09/2023
Lab ID: AL0080040
Valid UntilInstrumentMethodAnalyte
AUSTIN COUNTY WSC 1NAAccreditation ID:
TX0080040(979) 865-3022Phone Number:Valerie EngelbrechtContact Name:
Approval Date: 03/31/2021
Chlorimeter4500CL-GFree Chlorine 03/31/2024
Monday, August 2, 2021 Page 6 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0080041
Valid UntilInstrumentMethodAnalyte
AUSTIN COUNTY WSC 2NAAccreditation ID:
TX0080041(979) 865-3022Phone Number:Valerie EngelbrechtContact Name:
Approval Date: 03/31/2021
Chlorimeter4500CL-GFree Chlorine 03/31/2024
Lab ID: AL0080045
Valid UntilInstrumentMethodAnalyte
AUSTIN COUNTY WSC 3NAAccreditation ID:
TX0080045(979) 865-3022Phone Number:Valerie EngelbrechtContact Name:
Approval Date: 03/31/2021
Chlorimeter4500CL-GFree Chlorine 03/31/2024
Lab ID: AL0080043
Valid UntilInstrumentMethodAnalyte
AUSTIN COUNTY WSC 4NAAccreditation ID:
TX0080043(979) 865-3022Phone Number:Valerie EngelbrechtContact Name:
Approval Date: 03/31/2021
Chlorimeter4500CL-GFree Chlorine 03/31/2024
Lab ID: AL1013207
Valid UntilInstrumentMethodAnalyte
B N S F CASEY YARDNAAccreditation ID:
TX1013207(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Lab ID: AL2370064
Valid UntilInstrumentMethodAnalyte
BAKER HUGHES PINE ISLANDNAAccreditation ID:
TX2370064(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/06/2020
Pocket Colorimeter II4500CL-DFree Chlorine 01/06/2023
Lab ID: AL1010365
Valid UntilInstrumentMethodAnalyte
BAMMEL UTILITY DISTRICTNAAccreditation ID:
TX1010365(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/19/2023
Lab ID: AL0100011
Valid UntilInstrumentMethodAnalyte
BANDERA COUNTY FWSD 1NAAccreditation ID:
TX0100011(830) 612-2580Phone Number:Danny SmithContact Name:
Approval Date: 09/12/2018
Hach Pocket Colorimeter4500CL-GFree Chlorine 09/12/2021
Lab ID: AL0610116
Valid UntilInstrumentMethodAnalyte
BAR V K WATER WORKSNAAccreditation ID:
TX0610116(940) 923-3602Phone Number:David ClarkContact Name:
Approval Date: 08/25/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 08/25/2023
Lab ID: AL1650120
Valid UntilInstrumentMethodAnalyte
BASIC ENERGY SERVICESNAAccreditation ID:
TX1650120(432) 683-1100Phone Number:Clint ElliottContact Name:
Approval Date: 10/02/2019
Eutech Instruments - pHTestr 30150.1pH 10/02/2022
Eutech Instruments - pHTestr 302550Temperature 10/02/2022
Monday, August 2, 2021 Page 7 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14873
Valid UntilInstrumentMethodAnalyte
BEACHWOOD ESTATES SWTPNAAccreditation ID:
TX1070069(512) 219-2294Phone Number:Timothy WillifordContact Name:
Approval Date: 09/10/2018
Titrator2320BAlkalinity 09/10/2021
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/10/2021
HACH SensION pH314500H-BpH 09/10/2021
Thermometer2550Temperature 09/10/2021
Contract LabTOC 09/10/2021
HACH CL174500CL-FTotal Chlorine 09/10/2021
HACH 2100N and HACH 1720E2130BTurbidity 09/10/2021
Contract LabUV254 09/10/2021
Lab ID: ALTP410879
Valid UntilInstrumentMethodAnalyte
BELL COUNTY WCID - SWTP 1NAAccreditation ID:
TX0140016(254) 939-2481Phone Number:Jason "JD" DominguezContact Name:
Approval Date: 08/07/2020
Hach Method 8203 Titration2320BAlkalinity 08/07/2023
Pocket Colorimeter II4500CL-GFree Chlorine 08/07/2023
Oakton pH 7004500H-BpH 08/07/2023
Mercury Filled Thermometer2550Temperature 08/07/2023
Aqua-Tech LaboratoriesContract LabTOC 08/07/2023
Pocket Colorimeter II4500CL-GTotal Chlorine 08/07/2023
Hach TU52002130BTurbidity 08/07/2023
Aqua-Tech LaboratoriesContract LabUV254 08/07/2023
Lab ID: ALTP410878
Valid UntilInstrumentMethodAnalyte
BELL COUNTY WCID - SWTP 2NAAccreditation ID:
TX0140016(254) 939-2481Phone Number:Jason "JD" DominguezContact Name:
Approval Date: 08/07/2020
Hach Method 8203 Titration2320BAlkalinity 08/07/2023
Pocket Colorimeter II4500CL-GFree Chlorine 08/07/2023
Oakton pH 7004500H-BpH 08/07/2023
Mercury Filled Thermometer2550Temperature 08/07/2023
Aqua-Tech LaboratoriesContract LabTOC 08/07/2023
Pocket Colorimeter II4500CL-GTotal Chlorine 08/07/2023
Hach TU52002130BTurbidity 08/07/2023
Aqua-Tech LaboratoriesContract LabUV254 08/07/2023
Lab ID: AL0140031
Valid UntilInstrumentMethodAnalyte
BELL COUNTY WCID 3NAAccreditation ID:
TX0140031(254) 698-6885Phone Number:John JenkinsContact Name:
Approval Date: 08/30/2019
Hach Pocket Colorimeter 58700-004500CL-DTotal Chlorine 08/30/2022
Monday, August 2, 2021 Page 8 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1230075
Valid UntilInstrumentMethodAnalyte
BELLE OAKS WATERNAAccreditation ID:
TX1230075(409) 755-7377Phone Number:Charlie AdamsContact Name:
Approval Date: 06/12/2020
HACH DR9004500CL-GFree Chlorine 06/12/2023
HACH DR9004500CL-GTotal Chlorine 06/12/2023
Lab ID: ALTP15077
Valid UntilInstrumentMethodAnalyte
BENBROOK WATER AUTHORITY WATER PLANT NAAccreditation ID:
TX2200029(817) 249-1250Phone Number:Mitchell RichardContact Name:
Approval Date: 04/20/2021
Titration2320BAlkalinity 04/20/2024
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 04/20/2024
Hach DR39004500CL-GFree Chlorine 04/20/2024
Hach HQ11d4500H-BpH 04/20/2024
Hach Amperometric Titrator4500CLO2-EPOE Chlorite 04/20/2024
Hach HQ11d2550Temperature 04/20/2024
Pace AnalyticalContract LabTOC 04/20/2024
Hach 2100N180.1Turbidity 04/20/2024
Lab ID: AL0270114
Valid UntilInstrumentMethodAnalyte
BERTRAM WOODS SUBDIVISIONNAAccreditation ID:
TX0270114(830) 693-2963Phone Number:Ricky L. RoweContact Name:
Approval Date: 12/09/2020
LCRA ELSContract LabAlkalinity 12/09/2023
LCRA ELSContract LabCalcium 12/09/2023
LCRA ELSContract LabConductivity 12/09/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/09/2023
Oakton pH Testr 304500H-BpH 12/09/2023
Standard Digital Thermometer2550Temperature 12/09/2023
Lab ID: AL0450108
Valid UntilInstrumentMethodAnalyte
BEST BLOCK ALLEYTON PLANTNAAccreditation ID:
TX0450108(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 04/28/2021
HACH Pocket Colorimeter II/DR3004500CL-GFree Chlorine 04/28/2024
Lab ID: AL1013340
Valid UntilInstrumentMethodAnalyte
BETHEL TABERNACLENAAccreditation ID:
TX1013340(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 05/10/2021
HACH Pocket Colorimeter II/DR3004500CL-GFree Chlorine 05/10/2024
Lab ID: AL1260017
Valid UntilInstrumentMethodAnalyte
BETHESDA WSCNAAccreditation ID:
TX1260017(817) 295-2131Phone Number:Carl NovakContact Name:
Approval Date: 03/05/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 03/05/2023
Monday, August 2, 2021 Page 9 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP1624
Valid UntilInstrumentMethodAnalyte
BIG BEND NATIONAL PARK CHISOS BASIN WATE WTP NAAccreditation ID:
TX0220022(432) 477-1159Phone Number:Mark ShulerContact Name:
Approval Date: 04/02/2021
HACH Pocket Colorimeter II4500CL-GFree Chlorine 04/02/2024
Hach Sension 1150.2pH 04/02/2024
Oakton pH 6+2550Temperature 04/02/2024
MicroTOLHACH 10133Turbidity 04/02/2024
Lab ID: AL2120037
Valid UntilInstrumentMethodAnalyte
BIG EDDYNAAccreditation ID:
TX2120037(903) 574-4155Phone Number:Shana WrightContact Name:
Approval Date: 11/23/2020
Hach Pocket Colorimeter IID1253-03Free Chlorine 11/23/2021
Hach DR300D1253-03Free Chlorine 11/23/2021
Lab ID: AL0009378
Valid UntilInstrumentMethodAnalyte
BIO-WEST, INC.NAAccreditation ID:
(832) 990-2940Phone Number:Andy BoswellContact Name:
Approval Date: 01/21/2021
EXO 3 pH150.1pH 01/21/2022
EXO 3 Conductivity/Temperature2550Temperature 01/21/2022
Lab ID: AL1470006
Valid UntilInstrumentMethodAnalyte
BISTONE MUNICIPAL WATER SUPPLYAccreditation ID:
TX1470006(254) 562-5922Phone Number:Andrew SmileyContact Name:
Approval Date: 07/23/2021
HACH PC II, DR900, DR 890, CL174500CL-GFree Chlorine 07/23/2024
HACH DR 900365.1Orthophosphate 07/23/2024
HQ11D/PHC301, SC200/DPD1P14500H-BpH 07/23/2024
HQ11D/PHC301, SC200/DPD1P12550Temperature 07/23/2024
Lab ID: ALTP410924
Valid UntilInstrumentMethodAnalyte
BLACK OAK WATER SYSTEM WTPNAAccreditation ID:
TX1700851(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 08/24/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 08/24/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 08/24/2023
Lab ID: ALTP21364
Valid UntilInstrumentMethodAnalyte
BLAIR WSC SWTPNAAccreditation ID:
TX2210024(325) 669-4320Phone Number:Dennis OrsbornContact Name:
Approval Date: 08/27/2019
HACH - Colorimeter II - LR/HR4500CL-GFree Chlorine 08/27/2022
HACH - Colorimeter II - LR/HR4500CL-GTotal Chlorine 08/27/2022
Monday, August 2, 2021 Page 10 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1500033
Valid UntilInstrumentMethodAnalyte
BLUEBONNET COVE MOBILE HOME PARK NAAccreditation ID:
TX1500033(512) 756-3050Phone Number:Tim CarltonContact Name:
Approval Date: 06/11/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 06/11/2022
Hach HQ11d150.1pH 06/11/2022
HB Instrument Thermometer2550Temperature 06/11/2022
Lab ID: AL0270018
Valid UntilInstrumentMethodAnalyte
BONANZA BEACHNAAccreditation ID:
TX0270018(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 02/05/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 02/05/2024
NIST2550Temperature 02/05/2024
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 02/05/2024
Lab ID: AL2370072
Valid UntilInstrumentMethodAnalyte
BORAL ROOFINGNAAccreditation ID:
TX2370072(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 02/25/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 02/25/2022
Lab ID: AL0170010
Valid UntilInstrumentMethodAnalyte
BORDEN COUNTY WATER SYSTEMNAAccreditation ID:
TX0170010(806) 756-4391Phone Number:Ross. D. SharpContact Name:
Approval Date: 05/28/2021
Eurofins Xenco, LLCContract LabAlkalinity 05/28/2024
Eurofins Xenco, LLCContract LabCalcium 05/28/2024
Eurofins Xenco, LLCContract LabConductivity 05/28/2024
DR300 Pocket Colorimeter4500CL-GFree Chlorine 05/28/2024
eXact pH+ Multi Meter Kit4500H-BpH 05/28/2024
eXact pH+ Multi Meter Kit2550Temperature 05/28/2024
Eurofins Xenco, LLCContract LabTOC 05/28/2024
DR300 Pocket Colorimeter4500CL-GTotal Chlorine 05/28/2024
Eurofins Xenco, LLCContract LabTurbidity 05/28/2024
Eurofins Xenco, LLCContract LabUV254 05/28/2024
Lab ID: AL1550074
Valid UntilInstrumentMethodAnalyte
BOSQUE BASIN WSCNAAccreditation ID:
TX1550074(254) 723-1834Phone Number:Charles D. Brandon, Jr.Contact Name:
Approval Date: 01/28/2020
HACH Pocket Colorimeter4500CL-GFree Chlorine 01/28/2023
Lab ID: AL0200610
Valid UntilInstrumentMethodAnalyte
BRAZORIA COUNTY MUD 21NAAccreditation ID:
TX0200610(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Monday, August 2, 2021 Page 11 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0200706
Valid UntilInstrumentMethodAnalyte
BRAZORIA COUNTY MUD 22NAAccreditation ID:
TX0200706(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL0200615
Valid UntilInstrumentMethodAnalyte
BRAZORIA COUNTY MUD 25NAAccreditation ID:
TX0200615(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 08/19/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 08/19/2023
Lab ID: AL0200612
Valid UntilInstrumentMethodAnalyte
BRAZORIA COUNTY MUD 29NAAccreditation ID:
TX0200612(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 08/05/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 08/05/2023
Lab ID: AL1110100
Valid UntilInstrumentMethodAnalyte
BRAZOS REGIONAL PUA SWATSNAAccreditation ID:
TX1110100(682) 500-1690Phone Number:Shellee HubbardContact Name:
Approval Date: 03/01/2019
Orion Star A2112320BAlkalinity 03/01/2022
Orion 940/960, Hach HQ440d2320BAlkalinity 03/01/2022
PalintestCHLORDIOX PLUSChlorine Dioxide 03/01/2022
Hach Amperometric Titrator #19300
4500CLO2-EChlorine Dioxide 03/01/2022
NovaChem Laboratories, IncContract LabChlorite (at EP) 03/01/2022
Hach Amperometric Titrator #19300Amperometric Titrator
4500CLO2-EChlorite (at EP) 03/01/2022
PalintestCHLORDIOX PLUSChlorite (at EP) 03/01/2022
Hach SL1000, CDC401 probe2510BConductivity 03/01/2022
YSI 3200; YSI 3252 probe2510BConductivity 03/01/2022
PalintestCHLOROSENSEFree Chlorine 03/01/2022
Orion Star A2114500H-BpH 03/01/2022
Orion 940/960, Hach HQ440d4500H-BpH 03/01/2022
Online Hach pHDsc4500H-BpH 03/01/2022
Thermofisher thermocouple2550Temperature 03/01/2022
Orion ATC probe2550Temperature 03/01/2022
Online Hach pHDsc2550Temperature 03/01/2022
Sievers M5310C5310CTOC 03/01/2022
Hach SL1000HACH 10260Total Chlorine 03/01/2022
Chemtrac HydroACT 300HACH 10260Total Chlorine 03/22/2022
Online Hach 5300sc & 5400sc2130BTurbidity 03/01/2022
Hach 2100AN, Hach TU52002130BTurbidity 03/01/2022
Hach 2100N2130BTurbidity 03/01/2022
Monday, August 2, 2021 Page 12 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14711
Valid UntilInstrumentMethodAnalyte
BRAZOSPORT WATER AUTHORITYNAAccreditation ID:
TX0200497(979) 824-4220Phone Number:Eddie EasterlingContact Name:
Approval Date: 10/01/2019
Electrimetric Titrator2320BAlkalinity 10/01/2022
Amperometric Titrator4500CLO2-EChlorine Dioxide 10/01/2022
Amperometric Titrator4500CLO2-EChlorite 10/01/2022
Sens ion52510BConductivity 10/01/2022
Hach Pocket Colorimeter4500CL-GFree Chlorine 10/01/2022
Oakton PH1504500H-BpH 10/01/2022
DR 6000 Spectrophotometer365.1Phosphate 10/01/2022
GLI Pro2550Temperature 10/01/2022
Hach P3500DW415.3TOC 10/01/2022
Hach CL174500CL-FTotal Chlorine 10/01/2022
Hach 2100ANHACH 10133Turbidity 10/01/2022
Lab ID: AL1011550
Valid UntilInstrumentMethodAnalyte
BRIDGESTONE MUDNAAccreditation ID:
TX1011550(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/19/2023
Lab ID: AL1120011
Valid UntilInstrumentMethodAnalyte
BRINKER WSCNAAccreditation ID:
TX1120011(903) 885-8888Phone Number:Scott CoursonContact Name:
Approval Date: 03/27/2019
HACH POCKET PRO PH150.3pH 03/27/2022
HACH POCKET PRO PH2550Temperature 03/27/2022
Lab ID: AL0250014
Valid UntilInstrumentMethodAnalyte
BROWN COUNTY WID 1NAAccreditation ID:
TX0250014(325) 646-9356Phone Number:Leslie Cody ShannonContact Name:
Approval Date: 12/19/2018
Titration2320BAlkalinity 12/19/2021
Hach DR 50004500CL-DFree Chlorine 12/19/2021
Hach H260g4500H-BpH 12/19/2021
VWR International2550Temperature 12/19/2021
LCRA LabsContract LabTOC 12/19/2021
Hach DR 50004500CL-DTotal Chlorine 12/19/2021
Hach-1720 E; Hach 2100N Turbidimeter
2130BTurbidity 12/19/2021
Monday, August 2, 2021 Page 13 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14744
Valid UntilInstrumentMethodAnalyte
BROWNSVILLE PUBLIC UTILITIES BOARD - SWTP PLANT 1 NAAccreditation ID:
TX0310001(956) 983-6488Phone Number:Domingo Cortez Jr.Contact Name:
Approval Date: 05/25/2021
Kemio DisinfectionCHLORDIOX PLUSChlorine Dioxide 05/25/2024
DR39004500CL-GFree Chlorine 05/25/2024
HQ440d4500H-BpH 05/25/2024
ICS-2100300.1POE Chlorite 05/25/2024
HQ440d2550Temperature 05/25/2024
DR39004500CL-GTotal Chlorine 05/25/2024
TU5200HACH 10258Turbidity 05/25/2024
Lab ID: ALTP14743
Valid UntilInstrumentMethodAnalyte
BROWNSVILLE PUBLIC UTILITIES BOARD - SWTP PLANT 2 NAAccreditation ID:
TX0310001(956) 983-6480Phone Number:Jacob GalvanContact Name:
Approval Date: 05/25/2021
Kemio DisinfectionCHLORDIOX PLUSChlorine Dioxide 05/25/2024
DR39004500CL-GFree Chlorine 05/25/2024
HQ440d4500H-BpH 05/25/2024
ICS-2100300.1POE Chlorite 05/25/2024
HQ440d2550Temperature 05/25/2024
DR39004500CL-GTotal Chlorine 05/25/2024
TU5200HACH 10258Turbidity 05/25/2024
Lab ID: ALTP16772
Valid UntilInstrumentMethodAnalyte
BRUSHY CREEK MUD WTPNAAccreditation ID:
TX2460061(512) 255-7871Phone Number:William CarrContact Name:
Approval Date: 04/30/2019
Titration2320BAlkalinity 04/30/2022
Hach DR3900/Hach Cl174500CL-GFree Chlorine 04/30/2022
Hach HQ40d150.1pH 04/30/2022
Hach HQ40d2550Temperature 04/30/2022
Hach DR3900/Hach Cl174500CL-GTotal Chlorine 04/30/2022
Hach TU5200/TU5300SC/TU5400SC
HACH 10258Turbidity 04/30/2022
Lab ID: AL1550096
Valid UntilInstrumentMethodAnalyte
C S COMMUNITY WSCNAAccreditation ID:
TX1550096(254) 723-1834Phone Number:Charles D. Brandon, Jr.Contact Name:
Approval Date: 05/16/2019
HACH Pocket Colorimeter4500CL-GFree Chlorine 05/16/2022
Monday, August 2, 2021 Page 14 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1500045
Valid UntilInstrumentMethodAnalyte
CAMP LONGHORN MAIN CAMPNAAccreditation ID:
TX1500045(512) 793-2811Phone Number:Robby RobertsonContact Name:
Approval Date: 05/07/2019
Tensette Titrator2320BAlkalinity 05/07/2022
CL17HACH 10260Free Chlorine 05/07/2022
Pocket Pro II Hach150.1pH 05/07/2022
Hach2550Temperature 05/07/2022
Aqua-TechContract LabTOC 05/07/2022
1720EHACH 10133Turbidity 05/07/2022
Lab ID: AL0100023
Valid UntilInstrumentMethodAnalyte
CAMP SIONITONAAccreditation ID:
TX0100023(830) 796-3510Phone Number:Rudolf PollabauerContact Name:
Approval Date: 09/09/2019
HACH COLORIMETER4500CL-GFree Chlorine 09/09/2022
Lab ID: ALTP5677
Valid UntilInstrumentMethodAnalyte
CANDLELIGHT HILLS SUBDIVISION SWTP NAAccreditation ID:
TX1010532(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 05/04/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 05/04/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 05/04/2023
Lab ID: AL0460017
Valid UntilInstrumentMethodAnalyte
CANYON LAKE ESTATES WATER SUPPLY NAAccreditation ID:
TX0460017(210) 215-5054Phone Number:Larry LackmanContact Name:
Approval Date: 12/15/2020
Hach Pocket Pro+4500H-BpH 12/15/2023
Hach Pocket Pro+2550Temperature 12/15/2023
Lab ID: AL0270115
Valid UntilInstrumentMethodAnalyte
CANYON OF THE EAGLES PARKNAAccreditation ID:
TX0270115(512) 730-5633Phone Number:Julie PodbielskiContact Name:
Approval Date: 11/06/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 11/06/2022
Lab ID: AL1070176
Valid UntilInstrumentMethodAnalyte
CAPE TRANQUILITY SYSTEMNAAccreditation ID:
TX1070176(903) 595-2128Phone Number:Steven HartleyContact Name:
Approval Date: 12/04/2020
Hach DR300 Pocket Colorimeter4500CL-FFree Chlorine 12/04/2021
Hach Pocket Pro + Multi 2150.1pH 12/04/2021
Hach Pocket Pro + Multi 22550Temperature 12/04/2021
Lab ID: AL0270131
Valid UntilInstrumentMethodAnalyte
CAPSTONE SUBDIVISIONNAAccreditation ID:
TX0270131(512) 573-7939Phone Number:Timothy YoungContact Name:
Approval Date: 01/03/2020
sensION+ PH1DL150.1pH 01/03/2023
sensION+ PH1DL2550Temperature 01/03/2023
Monday, August 2, 2021 Page 15 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14875
Valid UntilInstrumentMethodAnalyte
CAROLYNN ESTATES SWTPNAAccreditation ID:
TX1070106(512) 531-6271Phone Number:Chuck BarryContact Name:
Approval Date: 04/22/2021
Titrator2320BAlkalinity 04/22/2024
HACH DR9004500CL-GFree Chlorine 04/22/2024
HACH HQ311D4500H-BpH 04/22/2024
Thermometer2550Temperature 04/22/2024
Ana-LabContract LabTOC 04/22/2024
HACH CL174500CL-FTotal Chlorine 04/22/2024
HACH TU53002130BTurbidity 04/22/2024
HACH TU52002130BTurbidity 04/22/2024
Ana-LabContract LabUV254 04/22/2024
Lab ID: ALTP14922
Valid UntilInstrumentMethodAnalyte
CASH SUD WTPNAAccreditation ID:
TX1160018(903) 883-2443Phone Number:Ron MooreContact Name:
Approval Date: 08/13/2018
Nalagene Titration Tube2320BAlkalinity 08/13/2021
Hach CL174500CL-GFree Chlorine 08/13/2021
Hach +Sesion PH 34500H-BpH 08/13/2021
Hach +Sesion PH 32550Temperature 08/13/2021
Contract LabTOC 08/13/2021
Hach CL174500CL-DTotal Chlorine 08/13/2021
Hach 2100 N180.1Turbidity 08/13/2021
Lab ID: AL0270047
Valid UntilInstrumentMethodAnalyte
CASSIE WATER SYSTEMNAAccreditation ID:
TX0270047(325) 379-1329Phone Number:Cody LewisContact Name:
Approval Date: 03/05/2021
Hach Pocket Pro + pH tester4500H-BpH 03/05/2024
Hach Pocket Pro + pH tester2550Temperature 03/05/2024
Lab ID: AL1011833
Valid UntilInstrumentMethodAnalyte
CASTLEWOOD MUDNAAccreditation ID:
TX1011833(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: ALTP14790
Valid UntilInstrumentMethodAnalyte
CCITY OF DENTON - LAKE LEWISVILLE SWTP NAAccreditation ID:
TX0610002(940) 349-7626Phone Number:Marla WhiteContact Name:
Approval Date: 06/10/2019
Hach 1720E & TU5300HACH 10258Turbidity 06/10/2022
Monday, August 2, 2021 Page 16 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0360044
Valid UntilInstrumentMethodAnalyte
CEDAR BAYOU ELECTRIC GENERATING NAAccreditation ID:
TX0360044(281) 383-4254Phone Number:Jennifer FallineContact Name:
Approval Date: 09/16/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 09/16/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 09/16/2022
Lab ID: AL0140161
Valid UntilInstrumentMethodAnalyte
CENTRAL TEXAS WSCNAAccreditation ID:
TX0140161(254) 698-2779Phone Number:Lee KelleyContact Name:
Approval Date: 02/19/2019
Digital Titrator2320BAlkalinity 02/19/2022
AT10004500CLO2-EChlorine Dioxide 02/19/2022
AT10004500CLO2-EChlorite (at EP) 02/19/2022
HQ40D2510BConductivity 02/19/2022
DR50004500CL-GFree Chlorine 02/19/2022
HQ40D150.1pH 02/19/2022
HQ40D2550Temperature 02/19/2022
LCRA LabContract LabTOC 02/19/2022
DR50004500CL-GTotal Chlorine 02/19/2022
TU5200HACH 10258Turbidity 02/19/2022
Lab ID: ALTP410069
Valid UntilInstrumentMethodAnalyte
CENTRAL TEXAS WSC - DOCK L CURB MEMBRANE SWTP NAAccreditation ID:
TX0140161(254) 698-2779Phone Number:Lee KelleyContact Name:
Approval Date: 03/13/2019
Digital Titrator2320BAlkalinity 03/13/2022
AT10004500CLO2-EChlorine Dioxide 03/13/2022
AT10004500CLO2-EChlorite (at EP) 03/13/2022
HQ40D2510BConductivity 03/13/2022
DR50004500CL-GFree Chlorine 03/13/2022
HQ40D150.1pH 03/13/2022
HQ40D2550Temperature 03/13/2022
LCRA LabContract LabTOC 03/13/2022
DR50004500CL-GTotal Chlorine 03/13/2022
TU5200HACH 10258Turbidity 03/13/2022
Monday, August 2, 2021 Page 17 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14702
Valid UntilInstrumentMethodAnalyte
CENTRAL TEXAS WSC SWTP - PLANT 1 NAAccreditation ID:
TX0140161(254) 698-2779Phone Number:Lee KelleyContact Name:
Approval Date: 03/13/2019
Digital Titrator2320BAlkalinity 03/13/2022
AT10004500CLO2-EChlorine Dioxide 03/13/2022
AT10004500CLO2-EChlorite (at EP) 03/13/2022
HQ40D2510BConductivity 03/13/2022
DR50004500CL-GFree Chlorine 03/13/2022
HQ40D150.1pH 03/13/2022
HQ40D2550Temperature 03/13/2022
LCRA LabContract LabTOC 03/13/2022
DR50004500CL-GTotal Chlorine 03/13/2022
TU5200HACH 10258Turbidity 03/13/2022
Lab ID: ALTP15171
Valid UntilInstrumentMethodAnalyte
CENTRAL TEXAS WSC SWTP - PLANT 2 NAAccreditation ID:
TX0140161(254) 698-2779Phone Number:Lee KelleyContact Name:
Approval Date: 03/13/2019
Digital Titrator2320BAlkalinity 03/13/2022
AT10004500CLO2-EChlorine Dioxide 03/13/2022
AT10004500CLO2-EChlorite (at EP) 03/13/2022
HQ40D2510BConductivity 03/13/2022
DR50004500CL-GFree Chlorine 03/13/2022
HQ40D150.1pH 03/13/2022
HQ40D2550Temperature 03/13/2022
LCRA LabContract LabTOC 03/13/2022
DR50004500CL-GTotal Chlorine 03/13/2022
TU5200HACH 10258Turbidity 03/13/2022
Lab ID: AL1010233
Valid UntilInstrumentMethodAnalyte
CHAMPIONS MUDNAAccreditation ID:
TX1010233(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL1030011
Valid UntilInstrumentMethodAnalyte
CHANNING WATER WORKSNAAccreditation ID:
TX1030011(806) 235-3106Phone Number:Brent LoudderContact Name:
Approval Date: 06/06/2019
Pocket ColorimeterHACH 10260Free Chlorine 06/06/2022
Lab ID: AL1050029
Valid UntilInstrumentMethodAnalyte
CHAPARRAL WATER SYSTEM HAYSNAAccreditation ID:
TX1050029(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 05/14/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 05/14/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 05/14/2023
Monday, August 2, 2021 Page 18 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14881
Valid UntilInstrumentMethodAnalyte
CHEROKEE SHORES WTPNAAccreditation ID:
TX1070206(512) 219-2294Phone Number:Timothy WillifordContact Name:
Approval Date: 09/07/2018
Titrator2320BAlkalinity 09/07/2021
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/07/2021
HACH HQ311D4500H-BpH 09/07/2021
Thermometer2550Temperature 09/07/2021
Contract LabTOC 09/07/2021
HACH CL174500CL-FTotal Chlorine 09/07/2021
HACH 2100N; HACH 1720E2130BTurbidity 09/07/2021
Contract LabUV254 09/07/2021
Lab ID: AL0020018
Valid UntilInstrumentMethodAnalyte
CHEVRON DOLLARHIDENAAccreditation ID:
TX0020018(713) 953-4775Phone Number:Dana SchmidtContact Name:
Approval Date: 01/15/2020
LCRAContract LabCalcium 01/15/2023
LCRAContract LabConductivity 01/15/2023
DR300 Pocket Colorimeter4500CL-GFree Chlorine 01/15/2023
Myron PT2 Ultrapen4500H-BpH 01/15/2023
LCRAContract LabPhosphate 01/15/2023
LCRAContract LabSilica 01/15/2023
Myron PT2 Ultrapen2550Temperature 01/15/2023
Lab ID: AL1650139
Valid UntilInstrumentMethodAnalyte
CHEVRON M11270NAAccreditation ID:
TX1650139(713) 953-4775Phone Number:Dana SchmidtContact Name:
Approval Date: 01/15/2020
DR300 Pocket Colorimeter4500CL-GFree Chlorine 01/15/2023
Myron PT2 Ultrapen4500H-BpH 01/15/2023
Myron PT2 Ultrapen2550Temperature 01/15/2023
Lab ID: AL0020010
Valid UntilInstrumentMethodAnalyte
CHEVRON MABEE OFFICE WSNAAccreditation ID:
TX0020010(713) 953-4775Phone Number:Dana SchmidtContact Name:
Approval Date: 01/15/2020
DR300 Pocket Colorimeter4500CL-GFree Chlorine 01/15/2023
Myron PT2 Ultrapen4500CL-GpH 01/15/2023
Myron PT2 Ultrapen2550Temperature 01/15/2023
Monday, August 2, 2021 Page 19 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0200551
Valid UntilInstrumentMethodAnalyte
CHEVRON PHILLIPS CLEMENS TERMINAL NAAccreditation ID:
TX0200551(979) 491-5730Phone Number:Glenn HeilContact Name:
Approval Date: 02/07/2019
Hach Pocket Colorimeter II, 58700-00
4500CL-GFree Chlorine 02/07/2022
Hach O-PhO4 Test Kit, PO-194500P-EOrthophosphate 02/07/2022
Thermo Scientific, Oakton OKPH150
4500H-BpH 02/07/2022
Thermo Scientific, Oakton OKPH150
2550Temperature 02/07/2022
Lab ID: AL0200683
Valid UntilInstrumentMethodAnalyte
CHEVRON PHILLIPS PE SITENAAccreditation ID:
TX0200683(979) 491-5730Phone Number:Glenn HeilContact Name:
Approval Date: 12/06/2018
Hach Pocket Colorimeter ll, 58700-00
4500CL-GFree Chlorine 12/06/2021
Thermo Scientific, Oakton OKPH150
4500H-BpH 12/06/2021
Thermo Scientific, Oakton OKPH150
2550Temperature 12/06/2021
Lab ID: AL0200583
Valid UntilInstrumentMethodAnalyte
CHEVRON PHILLIPS REC CENTERNAAccreditation ID:
TX0200583(979) 491-5730Phone Number:Glenn HeilContact Name:
Approval Date: 12/06/2018
Hach Pocket Colorimeter ll, 58700-00
4500CL-GFree Chlorine 12/06/2021
Thermo Scientific, Oakton OKPH150
4500H-BpH 12/06/2021
Thermo Scientific, Oakton OKPH150
2550Temperature 12/06/2021
Lab ID: AL1010910
Valid UntilInstrumentMethodAnalyte
CHIMNEY HILL MUDNAAccreditation ID:
TX1010910(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/19/2023
Lab ID: AL1550021
Valid UntilInstrumentMethodAnalyte
CHINA SPRING WATERNAAccreditation ID:
TX1550021(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 02/07/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/07/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/07/2023
Monday, August 2, 2021 Page 20 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0100091
Valid UntilInstrumentMethodAnalyte
CIELO RIO RANCH WATER SYSTEMNAAccreditation ID:
TX0100091(830) 765-5210Phone Number:Daniel BigottContact Name:
Approval Date: 10/15/2018
Hach Pocket Colorimeter II4500CL-GFree Chlorine 10/15/2021
Thermo Orion 3 Star Portable4500H-BpH 10/15/2021
Thermo Orion 3 Star Portable2550Temperature 10/15/2021
Lab ID: ALTP10825
Valid UntilInstrumentMethodAnalyte
CIMARRON COUNTRY WTPNAAccreditation ID:
TX1700555(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 02/21/2019
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/21/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/21/2022
Lab ID: AL0790427
Valid UntilInstrumentMethodAnalyte
CINCO RANCH RV PARKNAAccreditation ID:
TX0790427(717) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 05/06/2021
HACH Pocket Colorimeter II/DR3004500CL-GFree Chlorine 05/06/2024
Lab ID: AL2210001
Valid UntilInstrumentMethodAnalyte
CITY OF ABILENENAAccreditation ID:
TX2210001(325) 676-6041Phone Number:Michael MichaudContact Name:
Approval Date: 12/28/2018
Burette2320BAlkalinity 12/28/2021
Severn Trent 17T2000-012ABD4500CLO2-EChlorine Dioxide 12/28/2021
Palin ChlordioX PlusCHLORDIOX PLUSChlorine Dioxide 12/28/2021
Severn Trent 17T2000-012ABD4500CLO2-EChlorite (at EP) 12/28/2021
Palin ChlordioX PlusCHLORDIOX PLUSChlorite (at EP) 12/28/2021
Orion Star4500H-BpH 12/28/2021
Orion Star2550Temperature 12/28/2021
DR850/DR900HACH 10260Total Chlorine 12/28/2021
Burette4500CL-FTotal Chlorine 12/28/2021
Hach 2100N/Hach 2100AN2130BTurbidity 12/28/2021
Monday, August 2, 2021 Page 21 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15082
Valid UntilInstrumentMethodAnalyte
CITY OF ABILENE - GRIMES WTPNAAccreditation ID:
TX2210001(325) 676-6429Phone Number:John HillContact Name:
Approval Date: 12/28/2018
Burette2320BAlkalinity 12/28/2021
Severn Trent 17T2000-012ABD4500CLO2-EChlorine Dioxide 12/28/2021
Palin ChlordioX PlusCHLORDIOX PLUSChlorine Dioxide 12/28/2021
Severn Trent 17T2000-012ABD4500CLO2-EChlorite (at EP) 12/28/2021
Palin ChlordioX PlusCHLORDIOX PLUSChlorite (at EP) 12/28/2021
Burette4500CL-FFree Chlorine 12/28/2021
ThermoOrion 920A4500H-BpH 12/28/2021
Thermometer2550Temperature 12/28/2021
Burette4500CL-FTotal Chlorine 12/28/2021
Hach CL-174500CL-GTotal Chlorine 12/28/2021
Hach Turbidity Meter 2100N2130BTurbidity 12/28/2021
Lab ID: ALTP20049
Valid UntilInstrumentMethodAnalyte
CITY OF ABILENE - HARGESHEIMER WTP NAAccreditation ID:
TX2210001(325) 676-6429Phone Number:Garry HoustonContact Name:
Approval Date: 12/28/2018
Burette2320BAlkalinity 12/28/2021
Severn Trent 17T2000-012ABD4500CLO2-EChlorine Dioxide 12/28/2021
Palin ChlordioX PlusCHLORDIOX PLUSChlorine Dioxide 12/28/2021
Severn Trent 17T2000-012ABD4500CLO2-EChlorite (at EP) 12/28/2021
Palin ChlordioX PlusCHLORDIOX PLUSChlorite (at EP) 12/28/2021
Burette4500CL-FFree Chlorine 12/28/2021
ThermoOrion 410A+4500H-BpH 12/28/2021
Thermometer2550Temperature 12/28/2021
Hach CL-174500CL-GTotal Chlorine 12/28/2021
Burette4500CL-FTotal Chlorine 12/28/2021
Hach Turbidity Meter 2100N2130BTurbidity 12/28/2021
Monday, August 2, 2021 Page 22 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15083
Valid UntilInstrumentMethodAnalyte
CITY OF ABILENE - NORTHEAST WTPNAAccreditation ID:
TX2210001(325) 676-6037Phone Number:Brandon HarrisContact Name:
Approval Date: 12/28/2018
Burette2320BAlkalinity 12/28/2021
Severn Trent 17T2000-012ABD4500CLO2-EChlorine Dioxide 12/28/2021
Palin ChlordioX PlusCHLORDIOX PLUSChlorine Dioxide 12/28/2021
Severn Trent 17T2000-012ABD4500CLO2-EChlorite (at EP) 12/28/2021
Palin ChlordioX PlusCHLORDIOX PLUSChlorite (at EP) 12/28/2021
Burette4500CL-FFree Chlorine 12/28/2021
ThermoOrion Dual Star4500H-BpH 12/28/2021
Thermometer2550Temperature 12/28/2021
Burette4500CL-FTotal Chlorine 12/28/2021
Hach CL-174500CL-GTotal Chlorine 12/28/2021
Hach Turbidity Meter 2100N2130BTurbidity 12/28/2021
Lab ID: ALTP22070
Valid UntilInstrumentMethodAnalyte
CITY OF ALBANY WTPNAAccreditation ID:
TX2090001(325) 762-3133Phone Number:David BalesContact Name:
Approval Date: 01/27/2021
Titration2320BAlkalinity 01/27/2024
LCRAContract LabCalcium 01/27/2024
KemioCHLORDIOX PLUSChlorine Dioxide 01/27/2024
Palin Test KitCHLORDIOX PLUSChlorine Dioxide 01/27/2024
Hach 900; CL174500CL-GFree Chlorine 01/27/2024
SL-1000HACH 10260Free Chlorine 01/27/2024
Hach HQ11d4500H-BpH 01/27/2024
Palin Test KitCHLORDIOX PLUSPOE Chlorite 01/27/2024
KemioCHLORDIOX PLUSPOE Chlorite 01/27/2024
Mercury Filled Thermometer2550Temperature 01/27/2024
Ana-LabContract LabTOC 01/27/2024
Hach 900; CL174500CL-GTotal Chlorine 01/27/2024
SL-1000HACH 10260Total Chlorine 01/27/2024
TU5200; Lovibond PTV 2000HACH 10258Turbidity 01/27/2024
Filtertrak 660SCHACH 10133Turbidity 01/27/2024
Monday, August 2, 2021 Page 23 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14944
Valid UntilInstrumentMethodAnalyte
CITY OF ALICE WTP LABNAAccreditation ID:
TX1250001(361) 664-9082Phone Number:Roel GonzalezContact Name:
Approval Date: 09/26/2018
Titration color change2320BAlkalinity 09/26/2021
Amperometric Titrator 193004500CLO2-EChlorine Dioxide 09/26/2021
Amperometric Titrator 193004500CLO2-EChlorite (at EP) 09/26/2021
Hach HQ411d ph/mv150.1pH 09/26/2021
Hach HQ411d ph/mv2550Temperature 09/26/2021
Hach DR 9004500CL-GTotal Chlorine 09/26/2021
Hach DR 9004500CL-GTotal Chlorine 09/26/2021
Hach 1720E Low Range NTU180.1Turbidity 09/26/2021
Lab ID: AL0430027
Valid UntilInstrumentMethodAnalyte
CITY OF ANNANAAccreditation ID:
TX0430027(972) 924-4510Phone Number:Troy HopkinsContact Name:
Approval Date: 11/07/2019
Hach DR9004500CL-GFree Chlorine 11/07/2022
Hach Pocket Pro +4500H-BpH 11/07/2022
Hach Pocket Pro +2550Temperature 11/07/2022
Hach DR9004500CL-GTotal Chlorine 11/07/2022
Lab ID: ALTP18537
Valid UntilInstrumentMethodAnalyte
CITY OF ANNONA WTPNAAccreditation ID:
TX1940004(903) 870-8520Phone Number:James ShumakeContact Name:
Approval Date: 03/28/2019
HACH - Colorimeter II - LR, HR4500CL-GFree Chlorine 03/28/2022
HACH - Colorimeter II - LR, HR4500CL-GTotal Chlorine 03/28/2022
Lab ID: ALTP18232
Valid UntilInstrumentMethodAnalyte
CITY OF ANSON SWTPNAAccreditation ID:
TX1270001(325) 823-2411Phone Number:Eddie HernandezContact Name:
Approval Date: 08/04/2020
Fisher USA Titration2320BAlkalinity 08/04/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 06/11/2023
Hach Cl 174500CL-GFree Chlorine 08/04/2023
Hach Sension pH 2150.1pH 06/11/2023
HQ11D pH Hach150.1pH 06/11/2023
Hach Cl 17150.1pH 06/11/2023
Hach Sension pH 1150.1pH 08/04/2023
Hach Sension pH 12550Temperature 08/04/2023
Abilene Environmental LabContract LabTOC 08/04/2023
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 06/11/2023
Hach Cl 174500CL-GTotal Chlorine 08/04/2023
Hach 1720E2130BTurbidity 06/11/2023
Hach 2100P180.1Turbidity 08/04/2023
Monday, August 2, 2021 Page 24 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2050015
Valid UntilInstrumentMethodAnalyte
CITY OF ARANSAS PASSNAAccreditation ID:
TX2050015(361) 758-3111Phone Number:Kristian FreezeContact Name:
3124
Approval Date: 12/16/2020
SL1000HACH 10260Total Chlorine 12/16/2023
DR3004500CL-GTotal Chlorine 12/16/2023
Lab ID: AL1070005
Valid UntilInstrumentMethodAnalyte
CITY OF ATHENSNAAccreditation ID:
TX1070005(903) 677-6666Phone Number:Michael FinneyContact Name:
Approval Date: 11/24/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 11/24/2023
HACH Pocket Colorimeter II4500CL-GTotal Chlorine 11/24/2023
Lab ID: ALTP15093
Valid UntilInstrumentMethodAnalyte
CITY OF AUSTIN WATER & WASTEWATER - DAVIS WTP NAAccreditation ID:
TX2270001(512) 972-1700Phone Number:Willie WalkerContact Name:
Approval Date: 11/13/2020
Hach CL 174500CL-GFree Chlorine 11/13/2023
Class B Buret4500CL-FFree Chlorine 11/13/2023
Orion Star A111 ISE Meter/Thermo Elect.
4500H-BpH 11/13/2023
Hach DPD1P14500H-BpH 11/13/2023
Foxboro I/A Series2550Temperature 11/13/2023
Orion Star A111 ISE Meter & ATC2550Temperature 11/13/2023
Hach CL 174500CL-GTotal Chlorine 11/13/2023
Class B Buret4500CL-FTotal Chlorine 11/13/2023
Hach TU5300scHACH 10258Turbidity 11/13/2023
Hach 2100N Benchtop2130BTurbidity 11/13/2023
Lab ID: ALTP410790
Valid UntilInstrumentMethodAnalyte
CITY OF AUSTIN WATER & WASTEWATER - HANDCOX WTP NAAccreditation ID:
TX2270001(512) 972-2201Phone Number:Mark PentonContact Name:
Approval Date: 11/13/2020
Hach CL 174500CL-GFree Chlorine 11/13/2023
Class B Buret4500CL-FFree Chlorine 11/13/2023
Hach SC 2004500H-BpH 11/13/2023
Orion Star A111 ISE Meter/Thermo Elect.
4500H-BpH 11/13/2023
Hach SC 2002550Temperature 11/13/2023
Orion Star A111 ISE Meter & ATC2550Temperature 11/13/2023
Hach CL 174500CL-GTotal Chlorine 11/13/2023
Class B Buret4500CL-FTotal Chlorine 11/13/2023
Hach TU5300scHACH 10258Turbidity 11/13/2023
Hach 2100N Benchtop2130BTurbidity 11/13/2023
Monday, August 2, 2021 Page 25 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15095
Valid UntilInstrumentMethodAnalyte
CITY OF AUSTIN WATER & WASTEWATER - ULLRICH WTP NAAccreditation ID:
TX2270001(512) 972-1800Phone Number:Kevin FettermanContact Name:
Approval Date: 11/13/2020
Hach CL 174500CL-GFree Chlorine 11/13/2023
Class B Buret4500CL-FFree Chlorine 11/13/2023
Hach SC 1004500H-BpH 11/13/2023
Orion Star A111 ISE Meter/Thermo Elect.
4500H-BpH 11/13/2023
Hach SC 1002550Temperature 11/13/2023
Orion Star A111 ISE Meter & ATC2550Temperature 11/13/2023
Hach CL 174500CL-GTotal Chlorine 11/13/2023
Class B Buret4500CL-FTotal Chlorine 11/13/2023
Hach FilterTrak 660HACH 10133Turbidity 11/13/2023
Hach 2100N Benchtop2130BTurbidity 11/13/2023
Lab ID: 48104
Valid UntilInstrumentMethodAnalyte
CITY OF AUSTIN WATER & WASTEWATER - WATER QUALITY T104704296Accreditation ID:
TX2270001 (512) 972-1462Phone Number:Racquel BassContact Name:
Approval Date: 11/13/2020
Orion pH/ISE Meter & Class A Buret
2320BAlkalinity 11/13/2023
Class A Buret3500CA-BCalcium 11/13/2023
Orion 3Star/EDT Re Tx Cond Meter2510BConductivity 11/13/2023
Hach Cl2 Pocket II4500CL-GFree Chlorine 11/13/2023
Class A Buret2340BHardness 11/13/2023
Hitachi U2900 UV/Vis Spec4500P-EOrthophosphate 11/13/2023
Thermo Orion pH/ISE meter4500H-BpH 11/13/2023
Therm & Orion Star A3242550Temperature 11/13/2023
OI Analytical (Aurora1030W)5310CTOC 11/13/2023
Hach Cl2 Pocket II4500CL-GTotal Chlorine 11/13/2023
Hach 2100AN Benchtop2130BTurbidity 11/13/2023
Hitachi U2900 UV/Vis Spec5910BUV254 11/13/2023
Monday, August 2, 2021 Page 26 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15069
Valid UntilInstrumentMethodAnalyte
CITY OF AZLE WTPNAAccreditation ID:
TX2200002(817) 444-3751Phone Number:Brad GearyContact Name:
Approval Date: 11/20/2019
Titration Equipment 0.02N Sulfuric Acid
2320BAlkalinity 11/20/2022
Titration Equipment - EDTA Titration
3500-CA BCalcium 11/20/2022
HACH 3900 Spectrophotometer4500CL-GFree Chlorine 11/20/2022
Orion Star A2114500H-BpH 11/20/2022
LCRA Environmental Laboratory Service
Contract LabPhosphate 11/20/2022
LCRA Environmental Laboratory Service
Contract LabPOE Chlorite 11/20/2022
Orion Star A2112550Temperature 11/20/2022
City of Ft. Worth Centralized Laboratory
Contract LabTOC 11/20/2022
HACH 3900 Spectrophotometer4500CL-GTotal Chlorine 11/20/2022
HACH TU5200HACH 10258Turbidity 11/20/2022
Lab ID: ALTP14741
Valid UntilInstrumentMethodAnalyte
CITY OF BAIRD WTPNAAccreditation ID:
TX0300001(325) 854-1212Phone Number:Steve CrowContact Name:
Approval Date: 10/07/2019
SL10002320BAlkalinity 10/07/2022
DR9004500CL-GFree Chlorine 10/07/2022
HQ430D Flexi4500H-BpH 10/07/2022
HQ430D Flexi2550Temperature 10/07/2022
Ana-LabContract LabTOC 10/07/2022
DR9004500CL-GTotal Chlorine 10/07/2022
TU52002130BTurbidity 10/07/2022
Ana-LabContract LabUV254 10/07/2022
Lab ID: ALTP20543
Valid UntilInstrumentMethodAnalyte
CITY OF BALLINGER WTPNAAccreditation ID:
TX2000001(325) 365-3116Phone Number:Ryan KoenigContact Name:
Approval Date: 04/01/2019
Hach Digital Titrator2320BAlkalinity 04/01/2022
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 04/01/2022
Hach Amperometric Titrator4500CLO2-EChlorite (at EP) 04/01/2022
Hach sensION378150.1pH 04/01/2022
Hach sensION3782550Temperature 04/01/2022
Hach DR 8904500CL-GTotal Chlorine 04/01/2022
Hach TU5200180.1Turbidity 04/01/2022
Monday, August 2, 2021 Page 27 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0110001
Valid UntilInstrumentMethodAnalyte
CITY OF BASTROPNAAccreditation ID:
TX0110001(512) 332-8960Phone Number:James B. WilsonContact Name:
Approval Date: 06/09/2021
Hach Model AL-AP2320BAlkalinity 06/09/2024
LCRA Environmental LaboratoryContract LabCalcium 06/09/2024
Oakton Con 1502510BConductivity 06/09/2024
Hach Pocket ColorimeterHACH 10260Free Chlorine 06/09/2024
LCRA Environmental LaboratoryContract LabHardness 06/09/2024
LCRA Environmental LaboratoryContract LabOrthophosphate 06/09/2024
SensION+ PH14500H-BpH 06/09/2024
LCRA Environmental LaboratoryContract LabPOE Chlorite 06/09/2024
LCRA Environmental LaboratoryContract LabSilica 06/09/2024
SensION+ PH12550Temperature 06/09/2024
Hach Pocket ColorimeterHACH 10260Total Chlorine 06/09/2024
Hach 2100Q180.1Turbidity 06/09/2024
Monday, August 2, 2021 Page 28 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: 48109
Valid UntilInstrumentMethodAnalyte
CITY OF BEAUMONT SWTPT104704341Accreditation ID:
TX1230001(409) 880-3785Phone Number:Amy ComerContact Name:
Approval Date: 10/15/2020
Titration Burette2320BAlkalinity 10/07/2022
Sabine River AuthorityContract LabCalcium 10/07/2022
Sabine River AuthorityContract LabConductivity 10/07/2022
Hach CL 174500CL-GFree Chlorine 10/07/2022
Hach Pocket Colorimeter II4500CL-GFree Chlorine 10/07/2022
Hach SL 1000HACH 10260Free Chlorine 10/07/2022
Hach DR300 Pocket Colorimeter4500CL-GFree Chlorine 09/09/2023
Hach DR39004500CL-GFree Chlorine 09/24/2023
Sabine River AuthorityContract LabHardness 10/07/2022
Hach Pocket Pro Tester4500H-BpH 10/07/2022
Fisher Accumet XL1504500H-BpH 10/07/2022
Hach Sension+ pH34500H-BpH 10/09/2023
Hach Sension+ pH314500H-BpH 10/15/2023
Sabine River AuthorityContract LabPhosphate 10/07/2022
Glass Thermometer2550Temperature 10/07/2022
GE Sievers 5310 C5310CTOC 10/07/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 10/07/2022
Hach CL 174500CL-GTotal Chlorine 10/07/2022
Hach SL 1000HACH 10260Total Chlorine 10/07/2022
Hach DR300 Pocket Colorimeter4500CL-GTotal Chlorine 09/09/2023
Hach DR39004500CL-GTotal Chlorine 09/24/2023
TU52002130BTurbidity 10/07/2022
TL2300180.1Turbidity 10/07/2022
Hach 1720E2130BTurbidity 10/07/2022
Hach 2100N2130BTurbidity 10/07/2022
Lab ID: AL1300001
Valid UntilInstrumentMethodAnalyte
CITY OF BOERNENAAccreditation ID:
TX1300001(210) 360-9129Phone Number:Roy E. BurgessContact Name:
Approval Date: 04/12/2021
TITRATION2320BAlkalinity 04/12/2024
HACH CL2 174500CL-GFree Chlorine 04/12/2024
ORION 520A4500H-BpH 04/12/2024
ENVIRO-SAFE2550Temperature 04/12/2024
HACH 2100N2130BTurbidity 04/12/2024
Monday, August 2, 2021 Page 29 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: 48114
Valid UntilInstrumentMethodAnalyte
CITY OF BORGER WTPT104704306Accreditation ID:
TX1170001(806) 273-0965Phone Number:Donny HughesContact Name:
Approval Date: 09/23/2019
Titration Set Up2320BAlkalinity 09/23/2022
Titration Set Up3500CA-DCalcium 09/23/2022
HACH 446002510BConductivity 09/23/2022
HACH DR 20004500CL-GFree Chlorine 09/23/2022
Orion Star A111/HACH Pocket Pro+150.1pH 09/23/2022
Durac Plus2550Temperature 09/23/2022
HACH 2100P180.1Turbidity 09/23/2022
Lab ID: ALTP15126
Valid UntilInstrumentMethodAnalyte
CITY OF BRENHAM SWTPNAAccreditation ID:
TX2390001(979) 337-7422Phone Number:Alton SommerfieldContact Name:
Approval Date: 06/04/2021
Sulfuric Acid 0.02N Titration2320BAlkalinity 06/04/2024
0.015 EDTA Titration3500-CA BCalcium 06/04/2024
Hach Digital Titrator4500CLO2-EChlorine Dioxide 06/04/2024
Hach CL174500CL-GFree Chlorine 06/04/2024
DR/820 Colorimeter II4500CL-GFree Chlorine 06/04/2024
Hach sensION +Ph314500H-BpH 06/04/2024
Hach Digital Titrator4500CLO2-EPOE Chlorite 06/04/2024
Hach sensION +pH312550Temperature 06/04/2024
Chaparral Laboratories, Inc.Contract LabTOC 06/04/2024
Hach CL174500CL-GTotal Chlorine 06/04/2024
DR/820 Colorimeter II4500CL-GTotal Chlorine 06/04/2024
Hach 1720e180.1Turbidity 06/04/2024
Lab ID: AL2490003
Valid UntilInstrumentMethodAnalyte
CITY OF BRIDGEPORTNAAccreditation ID:
TX2490003(940) 781-5270Phone Number:John FluhartyContact Name:
Approval Date: 01/18/2019
HACH Digital Titrator2320BAlkalinity 01/18/2022
HACH Pocket Colorimeter II4500CL-GFree Chlorine 01/18/2022
HACH Sension 1564500H-BpH 01/18/2022
HACH Sension 1562550Temperature 01/18/2022
HACH Pocket Colorimeter II/CL174500CL-GTotal Chlorine 01/18/2022
2100N Benchtop TurbidimeterHACH 10258Turbidity 01/18/2022
Monday, August 2, 2021 Page 30 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14771
Valid UntilInstrumentMethodAnalyte
CITY OF BRONTE SWTPNAAccreditation ID:
TX0410001(325) 473-3501Phone Number:Ricky RoyallContact Name:
Approval Date: 05/03/2021
Digital Titrator Model 16900-012320BAlkalinity 05/03/2024
Hach Pocket Colorimeter II and CL17
4500CL-GFree Chlorine 05/03/2024
Oakton 510 Series pH and Temp150.1pH 05/03/2024
Oakton 510 Series pH and Temp2550Temperature 05/03/2024
Xenco LaboratoriesContract LabTOC 05/03/2024
Hach Pocket Colorimeter II and CL17
4500CL-GTotal Chlorine 05/03/2024
Hach 2100N2130BTurbidity 05/03/2024
Hach sc100 1720E2130BTurbidity 05/03/2024
Lab ID: AL1450001
Valid UntilInstrumentMethodAnalyte
CITY OF BUFFALONAAccreditation ID:
TX1450001(903) 322-4741Phone Number:Julie UptmorContact Name:
Approval Date: 07/11/2019
Hach Colorimeter II4500CL-GFree Chlorine 07/11/2022
Lab ID: ALTP16640
Valid UntilInstrumentMethodAnalyte
CITY OF BUFFALO GAP - MASTER METER WTP NAAccreditation ID:
TX2210003(325) 370-5796Phone Number:Dana SowellContact Name:
Approval Date: 06/27/2019
Hach 587004500CL-GFree Chlorine 06/27/2022
Hach Pocket Pro150.1pH 06/27/2022
Hach Pocket Pro2550Temperature 06/27/2022
Hach 587004500CL-GTotal Chlorine 06/27/2022
Lab ID: ALTP14991
Valid UntilInstrumentMethodAnalyte
CITY OF CAMERON SWTPNAAccreditation ID:
TX1660001(806) 778-8280Phone Number:Brandon WhiteContact Name:
Approval Date: 03/20/2019
SL10002320BAlkalinity 03/20/2022
SL10004500CL-GFree Chlorine 03/20/2022
HQ411D4500H-BpH 03/20/2022
HQ411D2550Temperature 03/20/2022
BioChem LabsContract LabTOC 03/20/2022
SL10004500CL-GTotal Chlorine 03/20/2022
2100N180.1Turbidity 03/20/2022
Monday, August 2, 2021 Page 31 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2340001
Valid UntilInstrumentMethodAnalyte
CITY OF CANTONNAAccreditation ID:
TX2340001(903) 567-4434Phone Number:Ron FieldsContact Name:
Approval Date: 11/22/2019
Ana-LabContract LabAlkalinity 11/22/2022
Ana-LabContract LabCalcium 11/22/2022
Ana-LabContract LabConductivity 11/22/2022
CL17 CHLORINE ANALYZER4500CL-GFree Chlorine 11/22/2022
HACH pH SENSOR4500H-BpH 11/22/2022
Ana-LabContract LabPhosphate 11/22/2022
Ana-LabContract LabPOE Chlorite 11/22/2022
Ana-LabContract LabSilica 11/22/2022
HACH pH SENSOR2550Temperature 11/22/2022
Ana-LabContract LabTOC 11/22/2022
CL17 CHLORINE ANALYZER4500CL-GTotal Chlorine 11/22/2022
HACH 1720E & 2100Q180.1Turbidity 11/22/2022
Ana-LabContract LabUV254 11/22/2022
Lab ID: AL0570034
Valid UntilInstrumentMethodAnalyte
CITY OF CARROLLTONNAAccreditation ID:
TX0570034(972) 466-4223Phone Number:Michael JobeContact Name:
Approval Date: 09/25/2019
Hanna Instruments pHep4150.1pH 09/25/2022
Hanna Instruments pHep42550Temperature 09/25/2022
Hach DR 9004500CL-GTotal Chlorine 09/25/2022
Lab ID: AL2460009
Valid UntilInstrumentMethodAnalyte
CITY OF CEDAR PARKNAAccreditation ID:
TX2460009(512) 401-5550Phone Number:Thomas DawkinsContact Name:
Approval Date: 05/23/2019
Hach SL 1000HACH 10260Free Chlorine 05/23/2022
HACH CL17, DR3900, DR9004500CL-GFree Chlorine 05/23/2022
Hach SL 10004500CL-GTotal Chlorine 05/23/2022
HACH CL17, DR3900, DR9004500CL-GTotal Chlorine 05/23/2022
TU5300SC w/SC200 Controller, TU5200
HACH 10258Turbidity 05/23/2022
Monday, August 2, 2021 Page 32 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15055
Valid UntilInstrumentMethodAnalyte
CITY OF CENTER - AIKEN SWTPNAAccreditation ID:
TX2100001(936) 598-2941Phone Number:Marcus CameronContact Name:
Approval Date: 12/01/2020
Buret Titration2320BAlkalinity 12/01/2023
Hach DR39004500CL-GFree Chlorine 12/01/2023
Hach DPD1P1150.1pH 12/01/2023
Hach DPD1P12550Temperature 12/01/2023
Eastex Environmental Lab, Inc.Contract LabTOC 12/01/2023
Hach DR39004500CL-GTotal Chlorine 12/01/2023
Hach TU5200HACH 10258Turbidity 12/01/2023
Lab ID: ALTP15163
Valid UntilInstrumentMethodAnalyte
CITY OF CENTER - MILL CREEK SWTPNAAccreditation ID:
TX2100001(936) 598-2941Phone Number:Marcus CameronContact Name:
Approval Date: 12/01/2020
Buret Titration2320BAlkalinity 12/01/2023
Hach DR39004500CL-GFree Chlorine 12/01/2023
Hach DPD1P1150.1pH 12/01/2023
Hach DPD1P12550Temperature 12/01/2023
Eastex Environmental Lab, Inc.Contract LabTOC 12/01/2023
Hach DR39004500CL-GTotal Chlorine 12/01/2023
Hach TU5200HACH 10258Turbidity 12/01/2023
Lab ID: AL0200004
Valid UntilInstrumentMethodAnalyte
CITY OF CLUTENAAccreditation ID:
TX0200004(979) 265-7939Phone Number:John W. WilkinsonContact Name:
Approval Date: 03/17/2020
HACH SL10004500H-BpH 03/17/2023
HACH SL10002550Temperature 03/17/2023
Lab ID: AL0300002
Valid UntilInstrumentMethodAnalyte
CITY OF CLYDENAAccreditation ID:
TX0300002(325) 280-8885Phone Number:Chad SheffieldContact Name:
Approval Date: 07/13/2020
Hach SL10002320BAlkalinity 07/13/2023
Hach SL10004500CL-GFree Chlorine 07/13/2023
Hach Sension 3/5190 ProbeD1293-99pH 07/13/2023
Hach Sension 3/5190 Probe2550Temperature 07/13/2023
Ana-LabContract LabTOC 07/13/2023
Hach SL10004500CL-FTotal Chlorine 07/13/2023
Hach TL2300HACH 10133Turbidity 07/13/2023
Monday, August 2, 2021 Page 33 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14774
Valid UntilInstrumentMethodAnalyte
CITY OF COLEMAN WTPNAAccreditation ID:
TX0420001(325) 625-5114Phone Number:Toby TerryContact Name:
Approval Date: 05/15/2019
Titration2320BAlkalinity 05/15/2022
SL-10004500CL-GFree Chlorine 05/15/2022
SENSIONS34500H-BpH 05/15/2022
SENSIONS32550Temperature 05/15/2022
Ana-LabContract LabTOC 05/15/2022
SL-10004500CL-GTotal Chlorine 05/15/2022
Hach 2100Q2130BTurbidity 05/15/2022
Lab ID: AL0210002
Valid UntilInstrumentMethodAnalyte
CITY OF COLLEGE STATIONNAAccreditation ID:
TX0210002(979) 764-6312Phone Number:James BoykinContact Name:
Approval Date: 03/18/2020
HACH PC II/DR3004500CL-GFree Chlorine 03/18/2023
OAKTON pH 30 TESTER4500H-BpH 03/18/2023
OAKTON pH 30 TESTER2550Temperature 03/18/2023
Lab ID: AL1680001
Valid UntilInstrumentMethodAnalyte
CITY OF COLORADO CITYNAAccreditation ID:
TX1680001(325) 728-3464Phone Number:C. Michelle GuelkerContact Name:
Approval Date: 05/31/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 05/31/2022
Hach SensION+ pH14500H-BpH 05/31/2022
Lab ID: AL1700001
Valid UntilInstrumentMethodAnalyte
CITY OF CONROENAAccreditation ID:
TX1700001(936) 522-3885Phone Number:Jason RodriguezContact Name:
Approval Date: 04/14/2021
Hach SL1000HACH 10260Free Chlorine 04/14/2024
Hach SL10004500P-EOrthophosphate 04/14/2024
Intellical PHC201 Electrode4500H-BpH 04/14/2024
Intellical PHC201 Electrode2550Temperature 04/14/2024
Lab ID: AL0150047
Valid UntilInstrumentMethodAnalyte
CITY OF CONVERSENAAccreditation ID:
TX0150047(210) 658-3453Phone Number:Jonathan SmithContact Name:
Approval Date: 08/23/2019
Pocket Pro + Tester4500H-BpH 08/23/2022
Pocket Pro + Tester2550Temperature 08/23/2022
Monday, August 2, 2021 Page 34 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14788
Valid UntilInstrumentMethodAnalyte
CITY OF COOPER SWTPNAAccreditation ID:
TX0600001(903) 272-0158Phone Number:Terry PalmerContact Name:
Approval Date: 07/29/2019
Digital Titrator2320BAlkalinity 07/29/2022
Hach DR 9004500CL-GFree Chlorine 07/29/2022
Sension +1150.1pH 07/29/2022
Sension +12550Temperature 07/29/2022
Ana-LabContract LabTOC 07/29/2022
Hach CL 174500CL-GTotal Chlorine 07/29/2022
Hach 2100P180.1Turbidity 07/29/2022
Lab ID: AL1780003
Valid UntilInstrumentMethodAnalyte
CITY OF CORPUS CHRISTI - O.N. STEVENS WTP NAAccreditation ID:
TX1780003(361) 826-1954Phone Number:William CreechContact Name:
Approval Date: 10/23/2020
Buret Titrator2320BAlkalinity 10/23/2023
Amperometric SensorCHLORDIOX PLUSChlorine Dioxide 10/23/2023
Hach DR-60004500CL-GFree Chlorine 10/23/2023
Hach SL-10004500CL-GFree Chlorine 10/23/2023
DR-19004500CL-GFree Chlorine 10/23/2023
Hach HQ440d4500H-BpH 10/23/2023
Hach SL-10004500H-BpH 10/23/2023
Hach HQ40d4500H-BpH 10/23/2023
Amperometric SensorCHLORDIOX PLUSPOE Chlorite 10/23/2023
Hach SL-10002550Temperature 10/23/2023
Hach HQ440d2550Temperature 10/23/2023
Hach HQ40d2550Temperature 10/23/2023
Shimadzu TOC-VWS5310CTOC 10/23/2023
Hach DR-60004500CL-GTotal Chlorine 10/23/2023
DR-19004500CL-GTotal Chlorine 10/23/2023
Hach SL-10004500CL-GTotal Chlorine 10/23/2023
Hach-TU52002130BTurbidity 10/23/2023
Hach 2100AN2130BTurbidity 10/23/2023
Monday, August 2, 2021 Page 35 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1750002
Valid UntilInstrumentMethodAnalyte
CITY OF CORSICANANAAccreditation ID:
TX1750002(903) 654-4855Phone Number:Jason BeardContact Name:
Approval Date: 02/06/2019
Ana-Lab CorporationContract LabAlkalinity 02/06/2022
Ana-Lab CorporationContract LabCalcium 02/06/2022
Ana-Lab CorporationContract LabConductivity 02/06/2022
HACH CL174500CL-GFree Chlorine 02/06/2022
HACH HQ411D4500H-BpH 02/06/2022
Ana-Lab CorporationContract LabPhosphate 02/06/2022
Ana-Lab CorporationContract LabSilica 02/06/2022
Mercury filled thermometer2550Temperature 02/06/2022
Ana-Lab CorporationContract LabTOC 02/06/2022
HACH CL174500CL-GTotal Chlorine 02/06/2022
HACH TU 52002130BTurbidity 02/06/2022
Ana-Lab CorporationContract LabUV254 02/06/2022
Lab ID: AL1420001
Valid UntilInstrumentMethodAnalyte
CITY OF COTULLANAAccreditation ID:
TX1420001(830) 879-2367Phone Number:David WrightContact Name:
Approval Date: 07/11/2019
Hach Pocket Pro + Multi 2150.1pH 07/11/2022
Hach Pocket Pro + Multi 22550Temperature 07/11/2022
Lab ID: AL0470002
Valid UntilInstrumentMethodAnalyte
CITY OF DE LEONNAAccreditation ID:
TX0470002(254) 893-2065Phone Number:Dean ThompsonContact Name:
Approval Date: 07/13/2021
Hach SL10004500CL-GFree Chlorine 07/13/2024
Hach SL10004500CL-GTotal Chlorine 07/13/2024
Lab ID: 48129
Valid UntilInstrumentMethodAnalyte
CITY OF DENISON WTPT104704267Accreditation ID:
TX0910003(903) 464-4480Phone Number:Angus EvansContact Name:
Approval Date: 08/03/2018
Orion VersaStar2320BAlkalinity 08/03/2021
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 08/03/2021
Hach Amperometric Titrator4500CLO2-EChlorite 08/03/2021
Hach CL174500CL-GFree Chlorine 08/03/2021
Orion VersaStar4500H-BpH 08/03/2021
Orion VersaStar2550Temperature 08/03/2021
Hach CL174500CL-GTotal Chlorine 08/03/2021
Hach 1720E2130BTurbidity 08/03/2021
Monday, August 2, 2021 Page 36 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14790
Valid UntilInstrumentMethodAnalyte
CITY OF DENTON - LAKE LEWISVILLE SWTP NAAccreditation ID:
TX0610002(940) 349-7626Phone Number:Marla WhiteContact Name:
Approval Date: 06/10/2019
Titration 4.5pH, Bench Orion A2162320BAlkalinity 06/10/2022
Hach CL174500CL-GFree Chlorine 06/10/2022
Hach 1720E & TU5300150.1pH 06/10/2022
Hach On-Line sc200 pH meter2550Temperature 06/10/2022
Hach CL174500CL-GTotal Chlorine 06/10/2022
Hach DR6000 Spectrophotometer5910BUV254 06/10/2022
Lab ID: ALTP19930
Valid UntilInstrumentMethodAnalyte
CITY OF DENTON - LAKE RAY ROBERTS SWTP NAAccreditation ID:
TX0610002(940) 349-7530Phone Number:Anthony GonzalesContact Name:
Approval Date: 06/10/2019
Titration 4.5pH2320BAlkalinity 06/10/2022
Hach CL174500CL-GFree Chlorine 06/10/2022
Hach On-Line sc200 pH meter150.1pH 06/10/2022
Hach On-Line sc200 pH meter2550Temperature 06/10/2022
Hach CL174500CL-GTotal Chlorine 06/10/2022
Hach 1720EHACH 10258Turbidity 06/10/2022
Hach DR6000 Spectrophotometer5910BUV254 06/10/2022
Lab ID: AL0610002
Valid UntilInstrumentMethodAnalyte
CITY OF DENTON MUNICIPAL LABORATORY NAAccreditation ID:
TX0610002(940) 349-8607Phone Number:Marcos DiosdadoContact Name:
Approval Date: 06/10/2019
Titrimetric2320BAlkalinity 06/10/2022
Perkin Elmer ELAN 9000200.7Calcium 06/10/2022
YSI 32002510BConductivity 06/10/2022
HACH SL10004500CL-GFree Chlorine 06/10/2022
Contract LabHardness 06/10/2022
HACH DR6000365.1Orthophosphate 06/10/2022
Thermo Orion Star A2114500H-BpH 06/10/2022
Mercury in glass2550Temperature 06/10/2022
Sievers 5310C5310CTOC 06/10/2022
HACH SL10004500CL-GTotal Chlorine 06/10/2022
HACH 2100Q2130BTurbidity 06/10/2022
Monday, August 2, 2021 Page 37 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP18113
Valid UntilInstrumentMethodAnalyte
CITY OF DONNA SWTPNAAccreditation ID:
TX1080002(956) 464-7861Phone Number:Jonas GonzalezContact Name:
Approval Date: 06/10/2021
Hach Amperometric2320BAlkalinity 06/10/2024
Hach Amperometric4500CLO2-EChlorine Dioxide 06/10/2024
Hach Pocket Colorimeter II4500CL-FFree Chlorine 06/10/2024
Hach HQ 4404500H-BpH 06/10/2024
Hach Amperometric4500CLO2-EPOE Chlorite 06/10/2024
Hach HQ 4402550Temperature 06/10/2024
Pollution Control Services LabContract LabTOC 06/10/2024
Hach Pocket Colorimeter II4500CL-ETotal Chlorine 06/10/2024
Hach TL23002130BTurbidity 06/10/2024
Pollution Control Services LabContract LabUV254 06/10/2024
Lab ID: AL0720001
Valid UntilInstrumentMethodAnalyte
CITY OF DUBLINNAAccreditation ID:
TX0720001(254) 434-1082Phone Number:Cory JamesContact Name:
Approval Date: 12/10/2020
Hach Pocket Colorimeter4500CL-GFree Chlorine 12/10/2023
Hach HQ 40D150.1pH 12/10/2023
Hach HQ 40D2550Temperature 12/10/2023
Hach Pocket Colorimeter4500CL-GTotal Chlorine 12/10/2023
Lab ID: ALTP20886
Valid UntilInstrumentMethodAnalyte
CITY OF EAGLE PASS - UF MEMBRANE WTP NAAccreditation ID:
TX1620001(830) 773-3813Phone Number:David SalasContact Name:
Approval Date: 03/13/2019
Titrator2320BAlkalinity 03/13/2022
HQ40d Multimeter2510BConductivity 03/13/2022
DPD Colorimeter4500CL-GFree Chlorine 03/13/2022
HQ40d Multimeter150.1pH 03/13/2022
HQ40d Multimeter2550Temperature 03/13/2022
LCRAContract LabTOC 03/13/2022
DPD Colorimeter4500CL-GTotal Chlorine 03/13/2022
2100 AN Turbidimeter180.1Turbidity 03/13/2022
LCRAContract LabUV254 03/13/2022
Lab ID: AL0480001
Valid UntilInstrumentMethodAnalyte
CITY OF EDENNAAccreditation ID:
TX0480001(325) 869-2211Phone Number:Celina HemmeterContact Name:
Approval Date: 01/04/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/04/2022
Hech SensIon PH34500H-BpH 01/04/2022
Hech SensIon PH32550Temperature 01/04/2022
Monday, August 2, 2021 Page 38 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14886
Valid UntilInstrumentMethodAnalyte
CITY OF ELSA SWTPNAAccreditation ID:
TX1080005(956) 355-2242Phone Number:Rene RodriguezContact Name:
Approval Date: 03/20/2019
Titration Method2320BAlkalinity 03/20/2022
Hach Pocket Colorimeter II4500CL-DFree Chlorine 03/20/2022
YSI MultiLab IOS 4010-14500H-BpH 03/20/2022
YSI MultiLab IOS 4010-12550Temperature 03/20/2022
Ana-Lab CorporationContract LabTOC 03/20/2022
Hach CL17 Total Chlorine Analyzer4500CL-DTotal Chlorine 03/20/2022
Hach 2100N Turbidimeter180.1Turbidity 03/20/2022
Lab ID: ALTP14797
Valid UntilInstrumentMethodAnalyte
CITY OF ENNIS WATER PLANTNAAccreditation ID:
TX0700001(972) 875-4465Phone Number:Marvin O'ConnorContact Name:
Approval Date: 08/28/2018
Buret Titration2320BAlkalinity 08/28/2021
Hach DR 9004500CL-GFree Chlorine 08/28/2021
Orion Ross Ultra Triode4500H-BpH 08/28/2021
Orion Ross Ultra Triode2550Temperature 08/28/2021
Contract LabTOC 08/28/2021
Hach DR 900, Hach CL 174500CL-GTotal Chlorine 08/28/2021
1720E online, 2100AN180.1Turbidity 08/28/2021
Hach TU 5200HACH 10258Turbidity 08/28/2021
Contract LabUV254 08/28/2021
Lab ID: AL2200031
Valid UntilInstrumentMethodAnalyte
CITY OF EULESSNAAccreditation ID:
TX2200031(817) 685-1584Phone Number:Rod WilliamsContact Name:
Approval Date: 12/13/2019
Hach SL1000HACH 10260Free Chlorine 12/13/2022
Hach Pro150.1pH 12/13/2022
Hach Pro2550Temperature 12/13/2022
Hach SL1000HACH 10260Total Chlorine 12/13/2022
Lab ID: AL1850002
Valid UntilInstrumentMethodAnalyte
CITY OF FARWELLNAAccreditation ID:
TX1850002(575) 799-5699Phone Number:Elpidio BanuelosContact Name:
Approval Date: 02/25/2019
Milwaukee M #MW100150.1pH 02/25/2022
Cen-teck S# 3643817022550Temperature 02/25/2022
Monday, August 2, 2021 Page 39 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1290002
Valid UntilInstrumentMethodAnalyte
CITY OF FORNEYNAAccreditation ID:
TX1290002(254) 220-0661Phone Number:John DanielsContact Name:
Approval Date: 07/23/2019
Hach Colorimeter II4500CL-GFree Chlorine 07/23/2022
Hach Pocket Pro + pH and Temp Tester
4500H-BpH 07/23/2022
Hach Pocket Pro + pH and Temp Tester
2550Temperature 07/23/2022
Hach Colorimeter II4500CL-GTotal Chlorine 07/23/2022
Lab ID: AL1140011
Valid UntilInstrumentMethodAnalyte
CITY OF FORSANNAAccreditation ID:
TX1140011(432) 213-7655Phone Number:Howard WhitleyContact Name:
Approval Date: 12/19/2019
Hach Colorimeter II4500CL-GFree Chlorine 12/19/2022
Hach Pocket Pro150.1pH 12/19/2022
Hach Pocket Pro2550Temperature 12/19/2022
Lab ID: ALTP15070
Valid UntilInstrumentMethodAnalyte
CITY OF FORT WORTH - EAGLE MOUNTAIN WTP NAAccreditation ID:
TX2200012(817) 392-2191Phone Number:George JosephContact Name:
Approval Date: 05/06/2021
Titration2320BAlkalinity 05/06/2024
Titration3500-CA BCalcium 05/06/2024
Titration4500CL-FFree Chlorine 05/06/2024
Hach HQ411D4500H-BpH 05/06/2024
Traceable Thermometer2550Temperature 05/06/2024
Titration4500CL-FTotal Chlorine 05/06/2024
Hach TU5200HACH 10258Turbidity 05/06/2024
Lab ID: ALTP15071
Valid UntilInstrumentMethodAnalyte
CITY OF FORT WORTH - NORTH HOLLY WTP NAAccreditation ID:
TX2200012(817) 392-8285Phone Number:Joe MannContact Name:
Approval Date: 05/06/2021
Titration2320BAlkalinity 05/06/2024
Titration3500-CA BCalcium 05/06/2024
Titration4500CL-FFree Chlorine 05/06/2024
Hach HQ411D4500H-BpH 05/06/2024
Traceable Thermometer2550Temperature 05/06/2024
Titration4500CL-FTotal Chlorine 05/06/2024
Hach TU5200HACH 10258Turbidity 05/06/2024
Monday, August 2, 2021 Page 40 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15072
Valid UntilInstrumentMethodAnalyte
CITY OF FORT WORTH - ROLLING HILLS WTP NAAccreditation ID:
TX2200012(817) 392-5932Phone Number:Joe TolsonContact Name:
Approval Date: 05/06/2021
Titration2320BAlkalinity 05/06/2024
Titration3500-CA BCalcium 05/06/2024
Titration4500CL-FFree Chlorine 05/06/2024
Hach HQ411D4500H-BpH 05/06/2024
Traceable Thermometer2550Temperature 05/06/2024
Titration4500CL-FTotal Chlorine 05/06/2024
Hach TU5200HACH 10258Turbidity 05/06/2024
Lab ID: ALTP15073
Valid UntilInstrumentMethodAnalyte
CITY OF FORT WORTH - SOUTH HOLLY WTP NAAccreditation ID:
TX2200012(817) 392-8285Phone Number:Joe MannContact Name:
Approval Date: 05/06/2021
Titration2320BAlkalinity 05/06/2024
Titration3500-CA BCalcium 05/06/2024
Titration4500CL-FFree Chlorine 05/06/2024
Hach HQ411D4500H-BpH 05/06/2024
Traceable Thermometer2550Temperature 05/06/2024
Titration4500CL-FTotal Chlorine 05/06/2024
Hach TU5200HACH 10258Turbidity 05/06/2024
Lab ID: ALTP21876
Valid UntilInstrumentMethodAnalyte
CITY OF FORT WORTH - WESTSIDE WTP NAAccreditation ID:
TX2200012(817) 392-2742Phone Number:Erik IrwinContact Name:
Approval Date: 05/06/2021
Titration2320BAlkalinity 05/06/2024
Titration3500-CA BCalcium 05/06/2024
Titration4500CL-FFree Chlorine 05/06/2024
Hach HQ411D4500H-BpH 05/06/2024
Traceable Thermometer2550Temperature 05/06/2024
Titration4500CL-FTotal Chlorine 05/06/2024
Hach TU5200HACH 10258Turbidity 05/06/2024
Lab ID: AL0200005
Valid UntilInstrumentMethodAnalyte
CITY OF FREEPORTNAAccreditation ID:
TX0200005(979) 233-4281Phone Number:Jerry Meeks, JrContact Name:
Approval Date: 09/17/2020
Hach Pocket Pro pH Tester4500H-BpH 09/17/2023
Hach Pocket Pro pH Tester2550Temperature 09/17/2023
Monday, August 2, 2021 Page 41 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0430005
Valid UntilInstrumentMethodAnalyte
CITY OF FRISCONAAccreditation ID:
TX0430005(214) 310-7889Phone Number:Kevin NethercuttContact Name:
Approval Date: 03/29/2021
HACH SL1000HACH 10260Free Chlorine 03/29/2024
HACH SL1000 (probe)4500H-BpH 03/29/2024
HACH SL1000 (probe)2550Temperature 03/29/2024
HACH SL1000HACH 10260Total Chlorine 03/29/2024
Lab ID: AL0490001
Valid UntilInstrumentMethodAnalyte
CITY OF GAINESVILLENAAccreditation ID:
TX0490001(940) 668-4577Phone Number:Billy BurganContact Name:
Approval Date: 06/20/2019
Buret2320BAlkalinity 06/20/2022
Hach Pocket Colorimeter4500CL-GFree Chlorine 06/20/2022
Hach HQ 411d4500H-BpH 06/20/2022
Hach HQ 411d2550Temperature 06/20/2022
Hach 2100N180.1Turbidity 06/20/2022
Lab ID: AL0570010
Valid UntilInstrumentMethodAnalyte
CITY OF GARLANDNAAccreditation ID:
TX0570010(972) 205-3202Phone Number:Jose GuevaraContact Name:
Approval Date: 02/11/2019
Pocket Pro + pH & Temperature Tester
150.3pH 01/22/2022
HACH Pocket Pro + pH & Temperature Tester
2550Temperature 02/11/2022
Lab ID: AL0500002
Valid UntilInstrumentMethodAnalyte
CITY OF GATESVILLENAAccreditation ID:
TX0500002(254) 986-8281Phone Number:Berry MansellContact Name:
Approval Date: 09/04/2019
DSHSContract LabAlkalinity 09/04/2022
DSHSContract LabCalcium 09/04/2022
HACH TITRATOR4500CLO2-EChlorine Dioxide 09/04/2022
DSHSContract LabConductivity 09/04/2022
POCKET COLORIMETER II4500CL-GFree Chlorine 09/04/2022
SENSION MM378150.1pH 09/04/2022
DSHSContract LabPhosphate 09/04/2022
HACH TITRATOR300.1POE Chlorite 09/04/2022
DSHSContract LabSilica 09/04/2022
SENSION MM3782550Temperature 09/04/2022
LCRAContract LabTOC 09/04/2022
POCKET COLORIMETER II4500CL-GTotal Chlorine 09/04/2022
2100 NHACH 10133Turbidity 09/04/2022
Monday, August 2, 2021 Page 42 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2460001
Valid UntilInstrumentMethodAnalyte
CITY OF GEORGETOWNNAAccreditation ID:
TX2460001(512) 819-3141Phone Number:Mike WelchContact Name:
Approval Date: 03/03/2021
Hach Pocket Pro + PH4500H-BpH 03/03/2024
Hach Pocket Pro + PH2550Temperature 03/03/2024
Lab ID: ALTP15143
Valid UntilInstrumentMethodAnalyte
CITY OF GEORGETOWN - LAKE GEORGETOWN WTP NAAccreditation ID:
TX2460001(512) 819-3141Phone Number:Mike WelchContact Name:
Approval Date: 12/08/2020
Titration Method2320BAlkalinity 12/08/2023
HACH DR9004500CL-GFree Chlorine 12/08/2023
HACH HQ11D4500H-BpH 12/08/2023
Ana-LabContract LabTOC 12/08/2023
HACH DR900 & HACH CL174500CL-GTotal Chlorine 12/08/2023
Hach 2100 Q & 1720 E2130BTurbidity 12/08/2023
Ana-LabContract LabUV254 12/08/2023
Lab ID: ALTP15142
Valid UntilInstrumentMethodAnalyte
CITY OF GEORGETOWN - SAN GABRIEL PARK WTP NAAccreditation ID:
TX2460001(512) 819-3141Phone Number:Mike WelchContact Name:
Approval Date: 12/08/2020
Titration Method2320BAlkalinity 12/08/2023
HACH DR900 & HACH CL174500CL-GFree Chlorine 12/08/2023
HACH HQ11D4500H-BpH 12/08/2023
Ana-LabContract LabTOC 12/08/2023
HACH DR900 & HACH CL174500CL-GTotal Chlorine 12/08/2023
HACH TU5200 & TU53002130BTurbidity 12/08/2023
Lab ID: ALTP19012
Valid UntilInstrumentMethodAnalyte
CITY OF GEORGETOWN - SOUTHSIDE WTP NAAccreditation ID:
TX2460001(512) 819-3141Phone Number:Mike WelchContact Name:
Approval Date: 12/08/2020
Titration Method2320BAlkalinity 12/08/2023
HACH DR900, HACH CL174500CL-GFree Chlorine 12/08/2023
HACH HQ11D4500H-BpH 12/08/2023
Ana-LabContract LabTOC 12/08/2023
HACH DR900, HACH CL174500CL-GTotal Chlorine 12/08/2023
HACH TU5200, TU5300, TU54002130BTurbidity 12/08/2023
Monday, August 2, 2021 Page 43 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14821
Valid UntilInstrumentMethodAnalyte
CITY OF GLADEWATER WTPNAAccreditation ID:
TX0920001(903) 844-6331Phone Number:Steven MatlockContact Name:
Approval Date: 02/07/2019
Digital HACH2320BAlkalinity 02/07/2022
HACH DR 39004500CL-GFree Chlorine 02/07/2022
HACH HQ411d150.1pH 02/07/2022
Thermometer2550Temperature 02/07/2022
Ana-LabContract LabTOC 02/07/2022
HACH DR 39004500CL-GTotal Chlorine 02/07/2022
HACH 2100N180.1Turbidity 02/07/2022
Lab ID: ALTP14992
Valid UntilInstrumentMethodAnalyte
CITY OF GOLDTHWAITE WTPNAAccreditation ID:
TX1670001(325) 648-3186Phone Number:Kory JerniganContact Name:
Approval Date: 05/23/2019
Hach Model AL-AP2320BAlkalinity 05/23/2022
Palintest ChlordioX Plus4500CLO2-CChlorine Dioxide 05/23/2022
Hach Pocket Colorimeter4500CL-GFree Chlorine 05/23/2022
Oakton pH MeterD1293-99pH 05/23/2022
Palintest ChlordioX Plus4500CLO2-EPOE Chlorite 05/23/2022
Lab thermometer2550Temperature 05/23/2022
Bio Chem LabContract LabTOC 05/23/2022
Hach Pocket Colorimeter4500CL-GTotal Chlorine 05/23/2022
Hach 2100AHACH 10133Turbidity 05/23/2022
Lab ID: ALTP14814
Valid UntilInstrumentMethodAnalyte
CITY OF GONZALES WATER PLANTNAAccreditation ID:
TX0890001(830) 672-3525Phone Number:Ryan WilkersonContact Name:
Approval Date: 06/04/2021
Titration2320BAlkalinity 06/04/2024
Hach Colormeter II4500CL-GFree Chlorine 06/04/2024
Hach CL174500CL-GFree Chlorine 06/04/2024
Orion 720A150.2pH 06/04/2024
H-B2550Temperature 06/04/2024
AQUA TECH LABORATORIESContract LabTOC 06/04/2024
Hach Colormeter II4500CL-GTotal Chlorine 06/04/2024
Hach CL174500CL-GTotal Chlorine 06/04/2024
Hach 1720e180.1Turbidity 06/04/2024
Hach 2100n180.1Turbidity 06/04/2024
Monday, August 2, 2021 Page 44 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1820007
Valid UntilInstrumentMethodAnalyte
CITY OF GORDONNAAccreditation ID:
TX1820007(254) 693-5676Phone Number:Chris HullContact Name:
Approval Date: 01/06/2020
Titration2320BAlkalinity 01/06/2023
Hach DR9004500CL-GFree Chlorine 01/06/2023
Oakton PH700150.1pH 01/06/2023
Oakton PH7002550Temperature 01/06/2023
Ana-labContract LabTOC 01/06/2023
Hach DR9004500CL-GTotal Chlorine 01/06/2023
SWAN AM12130BTurbidity 01/06/2023
Lab ID: AL1380001
Valid UntilInstrumentMethodAnalyte
CITY OF GOREE WATER SYSTEMNAAccreditation ID:
TX1380001(940) 422-5306Phone Number:Crystal GrahamContact Name:
Approval Date: 02/14/2019
Hach Colorimeter II4500CL-GFree Chlorine 02/14/2022
Hach Colorimeter II4500CL-GTotal Chlorine 02/14/2022
Lab ID: AL1110001
Valid UntilInstrumentMethodAnalyte
CITY OF GRANBURYNAAccreditation ID:
TX1110001(817) 573-9692Phone Number:JG BriteContact Name:
Approval Date: 02/09/2021
Titration2320BAlkalinity 02/09/2024
Palin Kemio300.0Chlorine Dioxide 02/09/2024
Chemtrac HydroAct334.0Free Chlorine 02/09/2024
HACH HQ440D4500H-BpH 02/09/2024
Palin Kemio300.0POE Chlorite 02/09/2024
PHC1012550Temperature 02/09/2024
Chemtrac HydroAct334.0Total Chlorine 02/09/2024
HACH TU5200HACH 10258Turbidity 02/09/2024
Lab ID: AL0570048
Valid UntilInstrumentMethodAnalyte
CITY OF GRAND PRAIRIENAAccreditation ID:
TX0570048(972) 237-8055Phone Number:Cindy MendezContact Name:
Approval Date: 04/16/2020
TRAContract LabAlkalinity 04/16/2023
Ana-LabContract LabCalcium 04/16/2023
TRAContract LabConductivity 04/16/2023
Orion ROSS Ultra pH Electrode150.1pH 04/16/2023
HACH PHC201150.1pH 04/16/2023
Orion ROSS Ultra pH Electrode2550Temperature 04/16/2023
HACH PHC2012550Temperature 04/16/2023
Hach SL 1000HACH 10260Total Chlorine 04/16/2023
Pocket Colorimeter II, DR3004500CL-GTotal Chlorine 04/16/2023
Monday, August 2, 2021 Page 45 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15074
Valid UntilInstrumentMethodAnalyte
CITY OF GRAPEVINE SWTPNAAccreditation ID:
TX2200013(817) 410-4141Phone Number:Jamshid DidehbaniContact Name:
Approval Date: 09/26/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 09/26/2022
Thermo Scientific Orion Ross4500H-BpH 09/26/2022
Thermco ACC850DIG Thermometer
2550Temperature 09/26/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 09/26/2022
HACH TU53002130BTurbidity 09/26/2022
Lab ID: ALTP14919
Valid UntilInstrumentMethodAnalyte
CITY OF GREENVILLE WTPNAAccreditation ID:
TX1160004(903) 457-3190Phone Number:James BelcherContact Name:
Approval Date: 10/27/2020
Titration2320BAlkalinity 10/27/2023
Ana-Lab CorporationContract LabCalcium 10/27/2023
Ana-Lab CorporationContract LabConductivity 10/27/2023
Hach CL174500CL-GFree Chlorine 10/27/2023
Hach DR9004500CL-GFree Chlorine 10/27/2023
Ana-Lab CorporationContract LabOrthophosphate 10/27/2023
Orion Star A211 Thermo EC3104500H-BpH 10/27/2023
Ana-Lab CorporationContract LabSilica 10/27/2023
Orion Star A211 Thermo EC3102550Temperature 10/27/2023
Ana-Lab CorporationContract LabTOC 10/27/2023
Hach CL174500CL-GTotal Chlorine 10/27/2023
Hach DR9004500CL-GTotal Chlorine 10/27/2023
Hach 2100N2130BTurbidity 10/27/2023
Analytical Environmental LabsContract LabUV254 10/27/2023
Lab ID: AL1230012
Valid UntilInstrumentMethodAnalyte
CITY OF GROVESNAAccreditation ID:
TX1230012(409) 960-5718Phone Number:David MolbertContact Name:
Approval Date: 01/09/2020
Hach Q 440d Multi2320BAlkalinity 01/09/2023
SRAContract LabCalcium 01/09/2023
SRAContract LabConductivity 01/09/2023
Hach DR39004500CL-GFree Chlorine 01/09/2023
SRAContract LabHardness 01/09/2023
Hach Q 440d Multi4500H-BpH 01/09/2023
Hach DR39004500P-EPhosphate 01/09/2023
SRAContract LabSilica 01/09/2023
Hach Q 440d Multi2550Temperature 01/09/2023
SRAContract LabTOC 01/09/2023
Hach DR39004500CL-GTotal Chlorine 01/09/2023
Hach TU5200HACH 10258Turbidity 01/09/2023
Monday, August 2, 2021 Page 46 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0140023
Valid UntilInstrumentMethodAnalyte
CITY OF HARKER HEIGHTSNAAccreditation ID:
TX0140023(254) 953-5641Phone Number:Mark HydeContact Name:
Approval Date: 11/19/2020
Hach Colorimeter II4500CL-GTotal Chlorine 11/19/2023
Lab ID: 48142
Valid UntilInstrumentMethodAnalyte
CITY OF HARLINGEN WATER WORKS SYSTEM T104704319Accreditation ID:
TX0310002(956) 440-6565Phone Number:Sandra E. PerezContact Name:
Approval Date: 02/10/2020
Orion EA940/9602320BAlkalinity 02/10/2023
Orion 550A2510BConductivity 02/10/2023
Orion EA9404500H-BpH 02/10/2023
Shimadzu TOC-VCSH5310BTOC 02/10/2023
Hach Pocket Colorimeter I4500CL-GTotal Chlorine 02/10/2023
Lab ID: AL2020001
Valid UntilInstrumentMethodAnalyte
CITY OF HEMPHILLN/AAccreditation ID:
TX2020001(409) 787-1272Phone Number:Elsmer DorseyContact Name:
Approval Date: 03/24/2021
Hach Sension 32320BAlkalinity 03/24/2024
Hach Sension 34500H-BpH 03/24/2024
H-B Instrument2550Temperature 03/24/2024
CL-17 Online Analyzer4500CL-GTotal Chlorine 03/24/2024
Hach DR300 Pocket Colorimeter4500CL-GTotal Chlorine 03/24/2024
Hach 2100 N180.1Turbidity 03/24/2024
Lab ID: AL0270099
Valid UntilInstrumentMethodAnalyte
CITY OF HIGHLAND HAVEN WATER SYSTEM NAAccreditation ID:
TX0270099(830) 693-2963Phone Number:Ricky L. RoweContact Name:
Approval Date: 12/09/2020
Aqua-Tech Laboratories, IncContract LabAlkalinity 12/09/2023
Aqua-Tech Laboratories, IncContract LabCalcium 12/09/2023
Aqua-Tech Laboratories, IncContract LabConductivity 12/09/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/09/2023
Oakton pH Testr 304500H-BpH 12/09/2023
Standard Digital Thermometer2550Temperature 12/09/2023
Lab ID: AL1500015
Valid UntilInstrumentMethodAnalyte
CITY OF HORSESHOE BAYNAAccreditation ID:
TX1500015(830) 613-7133Phone Number:Joshua HiseyContact Name:
Approval Date: 01/23/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/23/2022
HQ 40D/PHC281150.1pH 01/23/2022
HQ 40D/PHC2812550Temperature 01/23/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/23/2022
Monday, August 2, 2021 Page 47 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14971
Valid UntilInstrumentMethodAnalyte
CITY OF HORSESHOE BAY CENTRAL WATER PLANT NAAccreditation ID:
TX1500015(830) 613-7133Phone Number:Joshua HiseyContact Name:
Approval Date: 01/23/2019
Bromcresol Green Methyl Red Indicator
2320BAlkalinity 01/23/2022
Aqua Tech LaboratoriesContract LabCalcium 01/23/2022
Aqua Tech LaboratoriesContract LabConductivity 01/23/2022
Hach DR 60004500CL-GFree Chlorine 01/23/2022
Aqua Tech LaboratoriesContract LabHardness 01/23/2022
HQ 40D/PHC281150.1pH 01/23/2022
HQ 40D/PHC2812550Temperature 01/23/2022
Aqua Tech LaboratoriesContract LabTOC 01/23/2022
Hach DR 60004500CL-GTotal Chlorine 01/23/2022
CL17 Chlorine Analyzer4500CL-GTotal Chlorine 01/23/2022
Hach 2100N180.1Turbidity 01/23/2022
Hach 1720EHACH 10133Turbidity 01/23/2022
Hach Filtertrak 660SCHACH 10133Turbidity 01/23/2022
Lab ID: ALTP18991
Valid UntilInstrumentMethodAnalyte
CITY OF HORSESHOE BAY WEST WATER PLANT NAAccreditation ID:
TX1500015(830) 613-7133Phone Number:Joshua HiseyContact Name:
Approval Date: 01/23/2019
Bromcresol Green Methyl Red Indicator
2320BAlkalinity 01/23/2022
Aqua Tech LaboratoriesContract LabCalcium 01/23/2022
Aqua Tech LaboratoriesContract LabConductivity 01/23/2022
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/23/2022
Aqua Tech LaboratoriesContract LabHardness 01/23/2022
HQ 11D/PHC101150.1pH 01/23/2022
HQ 11D/PHC1012550Temperature 01/23/2022
Aqua Tech LaboratoriesContract LabTOC 01/23/2022
CL17 Chlorine Analyzer4500CL-GTotal Chlorine 01/23/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/23/2022
Hach TU5200180.1Turbidity 01/23/2022
Hach 1720EHACH 10133Turbidity 01/23/2022
Hach Filtertrak 660SCHACH 10133Turbidity 01/23/2022
Monday, August 2, 2021 Page 48 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14835
Valid UntilInstrumentMethodAnalyte
CITY OF HOUSTON - EAST WATER PURIFICATION PLANT NAAccreditation ID:
TX1010013(346) 262-7695Phone Number:Zachary LillieContact Name:
Approval Date: 08/28/2019
Pyrex 25mL Titration Buret2320BAlkalinity 08/28/2022
Orion Dual Star4500H-BpH 08/28/2022
Orion Dual Star2550Temperature 08/28/2022
Suez Sievers M53105310BTOC 08/28/2022
Hach DR 60004500CL-GTotal Chlorine 08/28/2022
HACH 2100 N, HACH 1720 E2130BTurbidity 08/28/2022
REAL UV254 P2005910BUV254 08/28/2022
Lab ID: ALTP20277
Valid UntilInstrumentMethodAnalyte
CITY OF HOUSTON - NORTHEAST WATER PURIFICATION PLANT NAAccreditation ID:
TX1010013(832) 395-6625Phone Number:Joey EickhoffContact Name:
Approval Date: 08/28/2019
Titrette2320BAlkalinity 08/28/2022
COH DWO LaboratoryContract LabCalcium 08/28/2022
DR 6000 EDU4500CL-GFree Chlorine 08/28/2022
Orion 4STAR Thermo Scientific4500H-BpH 08/28/2022
Orion 4STAR Thermo Scientific2550Temperature 08/28/2022
COH DWO LaboratoryContract LabTOC 08/28/2022
DR 6000 EDU4500CL-GTotal Chlorine 08/28/2022
TL 2300 Benchtop Turbidimeter2130BTurbidity 08/28/2022
DR 6000 EDU5910BUV254 08/28/2022
Lab ID: ALTP14837
Valid UntilInstrumentMethodAnalyte
CITY OF HOUSTON - SOUTHEAST WATER PURIFICATION PLANT NAAccreditation ID:
TX1010013(832) 395-5675Phone Number:Kenneth W. BrownContact Name:
Approval Date: 08/28/2019
Pyrex 25mL Titration Buret2320BAlkalinity 08/28/2022
Orion Dual Star4500H-BpH 08/28/2022
Orion Dual Star2550Temperature 08/28/2022
COH/DWO/LABContract LabTOC 08/28/2022
HACH DR 60004500CL-GTotal Chlorine 08/28/2022
HACH 2100 N, HACH 1720E2130BTurbidity 08/28/2022
COH/DWO/LABContract LabUV254 08/28/2022
Lab ID: AL1011585
Valid UntilInstrumentMethodAnalyte
CITY OF HOUSTON DISTRICT 73NAAccreditation ID:
TX1011585(281) 358-2828Phone Number:Jon DawsonContact Name:
Approval Date: 11/10/2020
Hach DR 9004500CL-GFree Chlorine 11/10/2021
Envirodyne LaboratoriesContract LabpH 11/10/2021
Envirodyne LaboratoriesContract LabTurbidity 11/10/2021
Monday, August 2, 2021 Page 49 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0910013
Valid UntilInstrumentMethodAnalyte
CITY OF HOWENAAccreditation ID:
TX0910013(903) 532-5571Phone Number:Michael PhillipsContact Name:
Approval Date: 02/19/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1840006
Valid UntilInstrumentMethodAnalyte
CITY OF HUDSON OAKSNAAccreditation ID:
TX1840006(817) 565-4169Phone Number:Ricky KingContact Name:
Approval Date: 02/14/2019
HACH SL1000D1253-86Free Chlorine 02/14/2022
HACH SL1000150.1pH 02/14/2022
HACH SL10002550Temperature 02/14/2022
HACH SL1000D1253-86Total Chlorine 02/14/2022
Lab ID: AL1840126
Valid UntilInstrumentMethodAnalyte
CITY OF HUDSON OAKS DYEGARDNAAccreditation ID:
TX1840126(817) 565-4169Phone Number:Ricky KingContact Name:
Approval Date: 1/15/2019
Hach SL1000D1253-86Free Chlorine 01/15/2022
Hach SL1000150.1pH 01/15/2022
Hach SL10002550Temperature 01/15/2022
Hach SL1000D1253-86Total Chlorine 01/15/2022
Lab ID: 48143
Valid UntilInstrumentMethodAnalyte
CITY OF HUNTSVILLE PARKER CREEK LAB T104704317Accreditation ID:
TX2360001(936) 291-5970Phone Number:Joe Massey IIIContact Name:
Approval Date: 03/31/2021
SL 1000HACH 10260Free Chlorine 03/31/2024
Pocket Colorimeter IIHACH 10260Free Chlorine 03/31/2024
DR850HACH 10260Free Chlorine 03/31/2024
SL 1000HACH 10260Total Chlorine 03/31/2024
Pocket Colorimeter IIHACH 10260Total Chlorine 03/31/2024
DR850HACH 10260Total Chlorine 03/31/2024
Lab ID: AL2460007
Valid UntilInstrumentMethodAnalyte
CITY OF HUTTONAAccreditation ID:
TX2460007(512) 759-4016Phone Number:Carson MonroeContact Name:
Approval Date: 06/18/2021
DR300 Pocket Colorimeter4500CL-GTotal Chlorine 06/29/2024
Monday, August 2, 2021 Page 50 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15056
Valid UntilInstrumentMethodAnalyte
CITY OF HUXLEY SWTPNAAccreditation ID:
TX2100019(936) 368-2633Phone Number:Kevin JacobsContact Name:
Approval Date: 05/18/2021
Hach Digital Titrator2320BAlkalinity 05/18/2024
Hach DR 27004500CL-GFree Chlorine 05/18/2024
Hach Sension3 pH Meter150.1pH 05/18/2024
Hach Sension3 pH Meter2550Temperature 05/18/2024
Hach DR 27004500CL-GTotal Chlorine 05/18/2024
Hach TL2300 Turbidimeter180.1Turbidity 05/18/2024
Lab ID: AL2430003
Valid UntilInstrumentMethodAnalyte
CITY OF IOWA PARKNAAccreditation ID:
TX2430003(940) 592-2131Phone Number:Michael B. McCarty IIContact Name:
Approval Date: 06/11/2019
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 06/11/2022
Lab ID: AL0570050
Valid UntilInstrumentMethodAnalyte
CITY OF IRVINGNAAccreditation ID:
TX0570050(972) 721-2281Phone Number:Elijah DorminyContact Name:
Approval Date: 06/15/2020
YSI Professional Plus2510BConductivity 06/15/2023
Hach SL10004500H-BpH 06/15/2023
Hach SL10002550Temperature 06/15/2023
Hach DR300 Pocket Colorimeter4500CL-GTotal Chlorine 06/15/2023
Lab ID: AL0370002
Valid UntilInstrumentMethodAnalyte
CITY OF JACKSONVILLENAAccreditation ID:
TX0370002(903) 339-3410Phone Number:Brian GayContact Name:
Approval Date: 05/28/2021
Ana-LabContract LabAlkalinity 05/28/2024
Environmental Lab ServicesContract LabCalcium 05/28/2024
Environmental Lab ServicesContract LabConductivity 05/28/2024
CL17 scHACH 10260Free Chlorine 05/28/2024
Hach HQ 440d150.1pH 05/28/2024
Hach HQ 440d2550Temperature 05/28/2024
Ana-LabContract LabTOC 05/28/2024
Hach 2100 AN180.1Turbidity 05/28/2024
Lab ID: AL0610003
Valid UntilInstrumentMethodAnalyte
CITY OF JUSTINNAAccreditation ID:
TX0610003(940) 465-1885Phone Number:Gilberto RamirezContact Name:
Approval Date: 11/15/2019
SL1000HACH 10260Total Chlorine 11/15/2022
Monday, August 2, 2021 Page 51 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14955
Valid UntilInstrumentMethodAnalyte
CITY OF KERRVILLE - CONVENTIONAL SWTP NAAccreditation ID:
TX1330001(830) 258-1232Phone Number:Jeff Renaud/Grant TerryContact Name:
Approval Date: 10/31/2019
Titration2320BAlkalinity 10/31/2022
Pocket Colorimeter4500CL-GFree Chlorine 10/31/2022
Standard4500H-BpH 10/31/2022
Digital Thermometer2550Temperature 10/31/2022
Turbiditimeter TU 5200180.1Turbidity 10/31/2022
Lab ID: ALTP20967
Valid UntilInstrumentMethodAnalyte
CITY OF KERRVILLE - MEMBRANE SWTP NAAccreditation ID:
TX1330001(830) 258-1232Phone Number:Jeff Renaud/Grant TerryContact Name:
Approval Date: 10/31/2019
Titration2320BAlkalinity 10/31/2022
Pocket Colorimeter4500CL-GFree Chlorine 10/31/2022
Standard4500H-BpH 10/31/2022
Digital Thermometer2550Temperature 10/31/2022
Turbiditimeter TU 5200180.1Turbidity 10/31/2022
Lab ID: 48147
Valid UntilInstrumentMethodAnalyte
CITY OF KERRVILLE LABORATORYT104704312Accreditation ID:
TX1330001(830) 257-4230Phone Number:Daniel BigottContact Name:
Approval Date: 05/28/2021
Titration2320BAlkalinity 12/31/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/31/2021
Hach DR28004500P-EOrthophosphate 12/31/2021
GE/Sievers 5310C5310CTOC 12/31/2021
Lab ID: ALTP14898
Valid UntilInstrumentMethodAnalyte
CITY OF LA VILLA WTPNAAccreditation ID:
TX1080023(956) 262-8404Phone Number:David AlanizContact Name:
Approval Date: 03/19/2021
Burette Titrator2320BAlkalinity 03/19/2024
Hach Amperometric Titration4500CLO2-EChlorine Dioxide 03/19/2024
Hach Pocket Colorimeter II4500CL-DFree Chlorine 03/19/2024
Hach SensION +PH314500H-BpH 03/19/2024
Hach Amperometric Titration4500CLO2-EPOE Chlorite 03/19/2024
Hach SensION +PH312550Temperature 03/19/2024
Ana-LabContract LabTOC 03/19/2024
Hach CL17 Total Chlorine Analyzer4500CL-GTotal Chlorine 03/19/2024
Hach 2100N Turbidimeter180.1Turbidity 03/19/2024
Monday, August 2, 2021 Page 52 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0200006
Valid UntilInstrumentMethodAnalyte
CITY OF LAKE JACKSONNAAccreditation ID:
TX0200006(979) 415-2681Phone Number:Darlene ThornsberryContact Name:
Approval Date: 09/25/2020
Titration3500-CA BCalcium 09/25/2023
Thermo Orion 3 Star2510BConductivity 09/25/2023
Hach Pocket Colorimeter4500CL-GFree Chlorine 09/25/2023
DR50004500P-EOrthophosphate 09/25/2023
Hach 440D4500H-BpH 09/25/2023
PHC1014500H-BpH 09/25/2023
Hach 440D2550Temperature 09/25/2023
Hach Pocket Colorimeter4500CL-GTotal Chlorine 09/25/2023
Lab ID: ALTP410842
Valid UntilInstrumentMethodAnalyte
CITY OF LAREDO EL PICO WTPNAAccreditation ID:
TX2400001(956) 795-2620Phone Number:Ricardo GomezContact Name:
Approval Date: 06/14/2021
HACH HQ440d Multi2320BAlkalinity 06/14/2024
HACH DR6000HACH 10260Free Chlorine 06/14/2024
HACH HQ440d Multi150.1pH 06/14/2024
HACH HQ440d Multi2550Temperature 06/14/2024
Eurofins Test AmericaContract LabTOC 06/14/2024
HACH DR6000HACH 10260Total Chlorine 06/14/2024
E & H Turbimax CUE 22180.1Turbidity 06/14/2024
Lab ID: ALTP15128
Valid UntilInstrumentMethodAnalyte
CITY OF LAREDO JEFFERSON WTPNAAccreditation ID:
TX2400001 (956) 795-2620Phone Number:Ricardo GomezContact Name:
Approval Date: 06/14/2021
HACH HQ440d Multi2320BAlkalinity 06/14/2024
HACH DR6000HACH 10260Free Chlorine 06/14/2024
HACH HQ440d Multi150.1pH 06/14/2024
HACH HQ440d Multi2550Temperature 06/14/2024
Eurofins Test AmericaContract LabTOC 06/14/2024
HACH DR6000HACH 10260Total Chlorine 06/14/2024
E & H Turbimax CUE 22180.1Turbidity 06/14/2024
Monday, August 2, 2021 Page 53 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP19085
Valid UntilInstrumentMethodAnalyte
CITY OF LEANDER WTPNAAccreditation ID:
TX2460012(512) 528-2782Phone Number:Justin AllenContact Name:
Approval Date: 07/08/2021
Titration2320BAlkalinity 07/08/2024
Ana-LabContract LabCalcium 07/08/2024
Ana-LabContract LabConductivity 07/08/2024
HACH SL10004500CL-GFree Chlorine 07/08/2024
HACH HQ 11D150.2pH 07/08/2024
Ana-LabContract LabPhosphate 07/08/2024
Ana-LabContract LabPOE Chlorite 07/08/2024
Ana-LabContract LabSilica 07/08/2024
Mercury Thermometer2550Temperature 07/08/2024
Ana-LabContract LabTOC 07/08/2024
HACH SL10004500CL-DTotal Chlorine 07/08/2024
HACH TU 52002130BTurbidity 07/08/2024
Ana-LabContract LabUV254 07/08/2024
Lab ID: AL0190093
Valid UntilInstrumentMethodAnalyte
CITY OF LEARYNAAccreditation ID:
TX0190093(903) 798-3850Phone Number:Rick BartonContact Name:
Approval Date: 03/13/2019
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 03/13/2022
Lab ID: 48146
Valid UntilInstrumentMethodAnalyte
CITY OF LEWISVILLE ECSLT104704350Accreditation ID:
TX0610004(972) 219-3548Phone Number:Katelyn HearonContact Name:
Approval Date: 08/03/2020
Titration2320BAlkalinity 08/03/2023
Titration3500-CA BCalcium 08/03/2023
Hach HQ40D2510BConductivity 08/03/2023
Hach HQ40D4500H-BpH 08/03/2023
Hach HQ40D2550Temperature 08/03/2023
Pace Analytical Services AllenContract LabTOC 08/03/2023
Titration & Hach Colorimeter II/DR300
4500CL-GTotal Chlorine 08/03/2023
Monday, August 2, 2021 Page 54 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14791
Valid UntilInstrumentMethodAnalyte
CITY OF LEWISVILLE FEASTER WATER PLANT NAAccreditation ID:
TX0610004(972) 219-3540Phone Number:Michael KivlanContact Name:
Approval Date: 05/27/2020
Titration2320BAlkalinity 05/27/2023
Titration4500CL-GFree Chlorine 05/27/2023
HQ440-d4500H-BpH 05/27/2023
HQ440-d2550Temperature 05/27/2023
Titration4500CL-GTotal Chlorine 05/27/2023
Hach TU5200180.1Turbidity 05/27/2023
Hach TU5300180.1Turbidity 05/27/2023
DR60005910BUV254 05/27/2023
Lab ID: AL2460013
Valid UntilInstrumentMethodAnalyte
CITY OF LIBERTY HILLNAAccreditation ID:
TX2460013(512) 745-7060Phone Number:Wayne BonnetContact Name:
Approval Date: 09/17/2018
Contract LabAlkalinity 09/17/2021
Contract LabCalcium 09/17/2021
Contract LabConductivity 09/17/2021
Hach ll Pocket Colorimeter4500CL-GFree Chlorine 09/17/2021
Contract LabHardness 09/17/2021
Contract LabOrthophosphate 09/17/2021
Oakton pH Tester 30150.1pH 09/17/2021
Contract LabSilica 09/17/2021
Oakton pH Tester 302550Temperature 09/17/2021
Hach ll Pocket Colorimeter4500CL-GTotal Chlorine 09/17/2021
Lab ID: AL0310004
Valid UntilInstrumentMethodAnalyte
CITY OF LOS FRESNOSNAAccreditation ID:
TX0310004(956) 233-5768Phone Number:Carlos SalazarContact Name:
Approval Date: 10/29/2020
HACH AL-DT2320BAlkalinity 10/29/2023
SL 1000 CHEMKEYHACH 10260Free Chlorine 10/29/2023
HACH SL10004500H-BpH 10/29/2023
HACH SL10002550Temperature 10/29/2023
ANA-LAB CORPORATIONContract LabTOC 10/29/2023
SL 1000 CHEMKEYHACH 10260Total Chlorine 10/29/2023
1720E LOW RANGE TURBIDIMETER180.1Turbidity 10/29/2023
Monday, August 2, 2021 Page 55 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP410086
Valid UntilInstrumentMethodAnalyte
CITY OF LUBBOCK SOUTH PLANT LABNAAccreditation ID:
TX1520002(806) 775-2625Phone Number:Elizabeth McLeisterContact Name:
Approval Date: 08/14/2018
Titration2320BAlkalinity 08/14/2021
Hach Titralab AT 12004500CLO2-EChlorine Dioxide 08/14/2021
Hach Titralab AT 12004500CLO2-EChlorite (at EP) 08/14/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 08/14/2021
Hach SL10004500H-BpH 08/14/2021
Hach SL10002550Temperature 08/14/2021
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 08/14/2021
Hach TU5200HACH 10260Turbidity 08/14/2021
Lab ID: ALTP14950
Valid UntilInstrumentMethodAnalyte
CITY OF MABANK SWTPNAAccreditation ID:
TX1290005(903) 887-3241Phone Number:Steven BarleyContact Name:
Approval Date: 02/09/2021
Titration2320BAlkalinity 02/09/2024
HACH DR 28004500CL-GFree Chlorine 02/09/2024
SC200H4500H-BpH 02/09/2024
SC200H2550Temperature 02/09/2024
Ana-LabContract LabTOC 02/09/2024
HACH DR 28004500CL-GTotal Chlorine 02/09/2024
HACH 2100 N180.1Turbidity 02/09/2024
Ana-LabContract LabUV254 02/09/2024
Lab ID: TX02623
Valid UntilInstrumentMethodAnalyte
CITY OF MANSFIELD WTPNAAccreditation ID:
TX2200018(817) 728-3660Phone Number:John WoodworthContact Name:
Approval Date: 04/13/2021
Titrator2320BAlkalinity 04/13/2024
DE NORA Capital Controls4500CLO2-EChlorine Dioxide 04/13/2024
HACH DR 39004500CL-GFree Chlorine 04/13/2024
sens Ion + MM3404500H-BpH 04/13/2024
DE NORA Capital Controls4500CLO2-EPOE Chlorite 04/13/2024
sens Ion + MM3402550Temperature 04/13/2024
Sievers5310C5310CTOC 04/13/2024
HACH DR 39004500CL-GTotal Chlorine 04/13/2024
HACH TU 5200HACH 10258Turbidity 04/13/2024
Monday, August 2, 2021 Page 56 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14726
Valid UntilInstrumentMethodAnalyte
CITY OF MARBLE FALLSNAAccreditation ID:
TX0270026(830) 693-2827Phone Number:Jeff FelpsContact Name:
Approval Date: 09/25/2019
Hach Digital Titrator2320BAlkalinity 09/25/2022
Titra Lab AT10004500CLO2-EChlorine Dioxide 09/25/2022
Hach AutoCat 90004500CLO2-EChlorine Dioxide 09/25/2022
Hach Sension 34500H-BpH 09/25/2022
Hach Sension 32550Temperature 09/25/2022
Hach DR3004500CL-GTotal Chlorine 09/25/2022
Pocket Colorimeter II4500CL-GTotal Chlorine 09/25/2022
Hach TU 52002130BTurbidity 09/25/2022
Lab ID: ALTP14866
Valid UntilInstrumentMethodAnalyte
CITY OF MARSHALL WTPNAAccreditation ID:
TX1020002(903) 935-4492Phone Number:Nancy PaselContact Name:
Approval Date: 03/25/2019
Titration2320BAlkalinity 03/25/2022
Hach DR 60004500CL-GFree Chlorine 03/25/2022
Accumet Basic pH Meter4500H-BpH 03/25/2022
Accumet ATC2550Temperature 03/25/2022
Ana-LabContract LabTOC 03/25/2022
Hach Cl-174500CL-GTotal Chlorine 03/25/2022
Hach 1720 E180.1Turbidity 03/25/2022
Lab ID: ALTP14979
Valid UntilInstrumentMethodAnalyte
CITY OF MART WTPNAAccreditation ID:
TX1550005(254) 315-9898Phone Number:Ray TeakellContact Name:
Approval Date: 04/02/2019
Hach SL 1000HACH 10260Free Chlorine 04/02/2022
Oakton WD-35634-30 pH Tester 30150.2pH 04/02/2022
Oakton WD-35634-30 pH Tester 302550Temperature 04/02/2022
Hach SL 1000HACH 10260Total Chlorine 04/02/2022
HF Micro 1000180.1Turbidity 04/02/2022
Lab ID: AL1600001
Valid UntilInstrumentMethodAnalyte
CITY OF MASONNAAccreditation ID:
TX1600001(325) 347-2119Phone Number:Brandon D. NeeceContact Name:
Approval Date: 04/07/2020
HACH DR300 Pocket ColorimeterHACH 10260Free Chlorine 04/07/2023
Monday, August 2, 2021 Page 57 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15047
Valid UntilInstrumentMethodAnalyte
CITY OF MATHIS JOHN STANDLEA WTP NAAccreditation ID:
TX2050003(361) 547-5951Phone Number:Nicolas RodasContact Name:
Approval Date: 10/08/2018
2320BAlkalinity 10/08/2021
Hach DR 8504500CL-GFree Chlorine 10/08/2021
Hach HQ11D/ISE Electrode4500H-BpH 10/08/2021
Electronic Thermometer2550Temperature 10/08/2021
Contract LabTOC 10/08/2021
Hach CL174500CL-GTotal Chlorine 10/08/2021
TU-5300 OnlineHACH 10258Turbidity 10/08/2021
Lab ID: AL0430039
Valid UntilInstrumentMethodAnalyte
CITY OF MCKINNEYNAAccreditation ID:
TX0430039(972) 547-7361Phone Number:Craig SherwoodContact Name:
Approval Date: 09/10/2018
Hach DR 900, Hach Pocket Col. II4500CL-GFree Chlorine 09/10/2021
ExStik pH100150.1pH 09/10/2021
ExStik pH1002550Temperature 09/10/2021
Hach DR 900, Hach Pocket Col. II4500CL-GTotal Chlorine 09/10/2021
Lab ID: AL1080007
Valid UntilInstrumentMethodAnalyte
CITY OF MERCEDESNAAccreditation ID:
TX1080007(956) 565-2372Phone Number:Aric QuesadaContact Name:
Approval Date: 08/06/2020
Hach SL10002320BAlkalinity 08/06/2023
Hach SL1000 & DR9004500CL-GFree Chlorine 08/06/2023
Hach SL10004500H-BpH 08/06/2023
Hach SL10002550Temperature 08/06/2023
Hach SL1000 & DR9004500CL-GTotal Chlorine 08/06/2023
Hach TL23002130BTurbidity 08/06/2023
Lab ID: AL1180002
Valid UntilInstrumentMethodAnalyte
CITY OF MERTZONNAAccreditation ID:
TX1180002(325) 315-0083Phone Number:Daniel BermeaContact Name:
Approval Date: 12/07/2018
Apera PH204500H-BpH 12/07/2021
Apera PH202550Temperature 12/07/2021
Monday, August 2, 2021 Page 58 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0570014
Valid UntilInstrumentMethodAnalyte
CITY OF MESQUITENAAccreditation ID:
TX0570014(972) 216-6946Phone Number:Jared HogueContact Name:
Approval Date: 09/10/2018
North Texas Municipal Water District
Contract LabAlkalinity 09/10/2021
North Texas Municipal Water District
Contract LabCalcium 09/10/2021
North Texas Municipal Water District
Contract LabConductivity 09/10/2021
Hach Pocket II Colorimeter4500CL-GFree Chlorine 09/10/2021
North Texas Municipal Water District
Contract LabHardness 09/10/2021
North Texas Municipal Water District
Contract LabOrthophosphate 09/10/2021
Oakton Waterproof pH Tester 30150.3pH 09/10/2021
North Texas Municipal Water District
Contract LabSilica 09/10/2021
Oakton Waterproof pH Tester 302550Temperature 09/10/2021
Hach Pocket II Colorimeter4500CL-GTotal Chlorine 09/10/2021
Lab ID: AL2000002
Valid UntilInstrumentMethodAnalyte
CITY OF MILESNAAccreditation ID:
TX2000002(325) 234-3918Phone Number:Cory PetreyContact Name:
Approval Date: 10/23/2020
HACH - Colorimeter II - LR/HR4500CL-GFree Chlorine 10/23/2023
HACH - Colorimeter II - LR/HR4500CL-GTotal Chlorine 10/23/2023
Lab ID: ALTP16539
Valid UntilInstrumentMethodAnalyte
CITY OF MILES SWTPNAAccreditation ID:
TX2000002(325) 468-3151Phone Number:Jason KingContact Name:
Approval Date: 02/03/2020
DR 890HACH 10260Total Chlorine 02/03/2023
Monday, August 2, 2021 Page 59 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14890
Valid UntilInstrumentMethodAnalyte
CITY OF MISSION - NORTH WTPNAAccreditation ID:
TX1080008(956) 342-5729Phone Number:Filemon OlveraContact Name:
Approval Date: 04/26/2021
HQ 440 D2320BAlkalinity 04/26/2024
HACH Amperometric Titrator4500CLO2-CChlorine Dioxide 04/26/2024
HQ 440 D2510BConductivity 04/26/2024
HACH Colorimeter II4500CL-GFree Chlorine 04/26/2024
HACH HQ 440 D4500H-BpH 04/26/2024
DR39004110BPhosphate 04/26/2024
HACH Amperometric Titrator4500CLO2-EPOE Chlorite 04/26/2024
HACH HQ 440 D2550Temperature 04/26/2024
Ana-LabContract LabTOC 04/26/2024
HACH Colorimeter II4500CL-GTotal Chlorine 04/26/2024
2100 N TURBIDIMETER2130BTurbidity 04/26/2024
Ana-LabContract LabUV254 04/26/2024
Lab ID: ALTP19014
Valid UntilInstrumentMethodAnalyte
CITY OF MISSION - SOUTH WTPNAAccreditation ID:
TX1080008(956) 342-5729Phone Number:Filemon OlveraContact Name:
Approval Date: 04/26/2021
HQ 440 D2320BAlkalinity 04/26/2024
HACH Amperometric Titrator4500CLO2-CChlorine Dioxide 04/26/2024
HQ 440 D2510BConductivity 04/26/2024
HACH Colorimeter II4500CL-GFree Chlorine 04/26/2024
HACH HQ 440 D4500H-BpH 04/26/2024
DR39004110BPhosphate 04/26/2024
HACH Amperometric Titrator4500CLO2-EPOE Chlorite 04/26/2024
HACH HQ 440 D2550Temperature 04/26/2024
Ana-LabContract LabTOC 04/26/2024
HACH Colorimeter II4500CL-GTotal Chlorine 04/26/2024
2100 N TURBIDIMETER2130BTurbidity 04/26/2024
Ana-LabContract LabUV254 04/26/2024
Monday, August 2, 2021 Page 60 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP20837
Valid UntilInstrumentMethodAnalyte
CITY OF MISSOURI CITY WTPNAAccreditation ID:
TX0790207(281) 710-4145Phone Number:Leonard HansenContact Name:
Approval Date: 09/21/2018
Titration2320BAlkalinity 09/21/2021
-Contract LabCalcium 09/21/2021
Capital Controls Amperometric Titrator
4500CLO2-EChlorine Dioxide 09/21/2021
Capital Controls Amperometric Titrator
4500CLO2-EChlorite (at EP) 09/21/2021
DR3900, DR50004500CL-GFree Chlorine 09/21/2021
Hach HQ44d4500H-BpH 09/21/2021
Digital Thermometer2550Temperature 09/21/2021
-Contract LabTOC 09/21/2021
DR3900, DR50004500CL-GTotal Chlorine 09/21/2021
Filtertrak 660SCHACH 10133Turbidity 09/21/2021
2100N2130BTurbidity 09/21/2021
-Contract LabUV254 09/21/2021
Lab ID: AL0430042
Valid UntilInstrumentMethodAnalyte
CITY OF MURPHYNAAccreditation ID:
TX0430042(972) 468-4355Phone Number:Scott MurrayContact Name:
Approval Date: 05/29/2020
Pocket Colorimeter4500CL-GFree Chlorine 05/29/2023
Hach Rugged pHd4500H-BpH 05/29/2023
Hach Rugged pHd2550Temperature 05/29/2023
Pocket Colorimeter4500CL-GTotal Chlorine 05/29/2023
Monday, August 2, 2021 Page 61 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1740003
Valid UntilInstrumentMethodAnalyte
CITY OF NACOGDOCHESNAAccreditation ID:
TX1740003(936) 564-5046Phone Number:Bart AllenContact Name:
2585
Approval Date: 02/08/2021
Hach Digital TitratorD1067-02BAlkalinity 02/08/2024
Eastex Environmental LaboratoryContract LabAlkalinity 02/08/2024
Eastex Environmental LaboratoryContract LabCalcium 02/08/2024
Eastex Environmental LaboratoryContract LabConductivity 02/08/2024
Hach DR900 Benchtop4500CL-GFree Chlorine 02/08/2024
Hach Pocket Colorimeter4500CL-GFree Chlorine 02/08/2024
Eastex Environmental LaboratoryContract LabHardness 02/08/2024
Eastex Environmental LaboratoryContract LabOrthophosphate 02/08/2024
Orion 290A+4500H-BpH 02/08/2024
Hach HQ40d Meter & pHC101 Probe
4500H-BpH 02/08/2024
Eastex Environmental LaboratoryContract LabPOE Chlorite 02/08/2024
Eastex Environmental LaboratoryContract LabSilica 02/08/2024
Hach HQ40d Meter & pHC101 Probe
2550Temperature 02/08/2024
Orion 290A+2550Temperature 02/08/2024
Eastex Environmental LaboratoryContract LabTOC 02/08/2024
Hach Pocket Colorimeter4500CL-GTotal Chlorine 02/08/2024
Hach DR900 Benchtop4500CL-GTotal Chlorine 02/08/2024
HACH 2100N Benchtop Turbidity Meter
180.1Turbidity 02/08/2024
Lab ID: AL1230006
Valid UntilInstrumentMethodAnalyte
CITY OF NEDERLANDNAAccreditation ID:
TX1230006(409) 723-1540Phone Number:Robert SangsterContact Name:
Approval Date: 03/24/2021
Titration2320BAlkalinity 03/24/2024
Hach SL 1000300.0Orthophosphate 03/24/2024
Hach HQ411D150.1pH 03/24/2024
Hach HQ411D2550Temperature 03/24/2024
Sabine River AuthorityContract LabTOC 03/24/2024
Hach CL174500CL-GTotal Chlorine 03/24/2024
Hach TU53002130BTurbidity 03/24/2024
Lab ID: AL1450004
Valid UntilInstrumentMethodAnalyte
CITY OF NORMANGEENAAccreditation ID:
TX1450004(979) 446-2999Phone Number:Janet BooneContact Name:
Approval Date: 09/18/2019
HACH ColorimeterHACH 10260Free Chlorine 09/18/2022
Monday, August 2, 2021 Page 62 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP17740
Valid UntilInstrumentMethodAnalyte
CITY OF ODESSA WTPNAAccreditation ID:
TX0680002(432) 368-3519Phone Number:Rip HalbaedierContact Name:
Approval Date: 12/10/2018
Odessa Lab ServicesContract LabAlkalinity 12/10/2021
NA - Titration4500CL-FFree Chlorine 12/10/2021
Thermo Scientific Orion 3 Star4500H-BpH 12/10/2021
Thermo Scientific Orion 3 Star2550Temperature 12/10/2021
Odessa Lab ServicesContract LabTOC 12/10/2021
NA - Titration4500CL-FTotal Chlorine 12/10/2021
Hf Scientific Hf-Micro 1002130BTurbidity 12/10/2021
Odessa Lab ServicesContract LabUV254 12/10/2021
Lab ID: AL1810004
Valid UntilInstrumentMethodAnalyte
CITY OF ORANGENAAccreditation ID:
TX1810004(409) 988-7335Phone Number:Timmy CampbellContact Name:
Approval Date: 01/13/2020
Hach Colorimeter II4500CL-DFree Chlorine 01/13/2023
Oakton PH Tester 304500H-BpH 01/13/2023
Oakton PH Tester 302550Temperature 01/13/2023
Lab ID: AL0900003
Valid UntilInstrumentMethodAnalyte
CITY OF PAMPANAAccreditation ID:
TX0900003(806) 669-5830Phone Number:Brian BridwellContact Name:
Approval Date: 08/28/2020
Orion II Star Benchtop2320BAlkalinity 08/28/2023
Hach S Pocket Colorimeter II4500CL-GFree Chlorine 08/28/2023
Orion II Star Benchtop4500H-BpH 08/28/2023
Orion II Star Benchtop2550Temperature 08/28/2023
Hach TL2100Q2130BTurbidity 08/28/2023
Lab ID: ALTP14959
Valid UntilInstrumentMethodAnalyte
CITY OF PARIS SWTPNAAccreditation ID:
TX1390002(903) 784-2464Phone Number:Danny RowellContact Name:
Approval Date: 03/08/2021
TitrationD1067-02BAlkalinity 03/08/2024
Hach DR 28004500CL-GFree Chlorine 03/08/2024
Orion Star A111150.1pH 03/08/2024
Celcius Thermometer2550Temperature 03/08/2024
ANA LABContract LabTOC 03/08/2024
Hach CL-174500CL-GTotal Chlorine 03/08/2024
Hach DR 28004500CL-GTotal Chlorine 03/08/2024
Hach 1720 E180.1Turbidity 03/08/2024
Hach 2100 AN180.1Turbidity 03/08/2024
ANA LABContract LabUV254 03/08/2024
Monday, August 2, 2021 Page 63 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0200008
Valid UntilInstrumentMethodAnalyte
CITY OF PEARLANDNAAccreditation ID:
TX0200008(281) 652-1934Phone Number:Julian KellyContact Name:
Approval Date: 08/10/2020
DR9004500CL-GFree Chlorine 08/10/2023
Probe4500H-BpH 08/10/2023
Probe2550Temperature 08/10/2023
DR9004500CL-GTotal Chlorine 08/10/2023
Lab ID: AL2270014
Valid UntilInstrumentMethodAnalyte
CITY OF PFLUGERVILLENAAccreditation ID:
TX2270014(512) 990-6402Phone Number:Brandon PritchettContact Name:
Approval Date: 10/05/2020
Titration2320BAlkalinity 10/05/2021
Hach DR6000/DR3004500CL-GFree Chlorine 10/05/2021
Hach HQ440D150.3pH 10/05/2021
Mercury Thermometer2550Temperature 10/05/2021
Hach DR6000/DR3004500CL-GTotal Chlorine 10/05/2021
Hach TU 52002130BTurbidity 10/05/2021
Lab ID: TX01551
Valid UntilInstrumentMethodAnalyte
CITY OF PHARR WATER LABORATORY T104704377Accreditation ID:
TX1080009(956) 402-4302Phone Number:Jesse TrejoContact Name:
Approval Date: 11/26/2018
Buret2320BAlkalinity 11/26/2021
Contract LabCalcium 11/26/2021
HACH TitraLab AT10004500CLO2-EChlorine Dioxide 11/26/2021
HACH TitraLab AT10004500CLO2-EChlorite (at EP) 11/26/2021
Contract LabConductivity 11/26/2021
HACH Pocket Colorimeter II4500CL-GFree Chlorine 11/26/2021
HACH DR300 Pocket Colorimeter4500CL-GFree Chlorine 02/23/2023
Thermo Scientific Orion Star A2154500H-BpH 11/26/2021
Thermo Scientific Orion Star A2152550Temperature 11/26/2021
Contract LabTOC 11/26/2021
HACH Pocket Colorimeter II4500CL-GTotal Chlorine 11/26/2021
HACH DR300 Pocket Colorimeter4500CL-GTotal Chlorine 02/13/2023
HACH 2100 N Bench top Meter2130BTurbidity 11/26/2021
Hach TU5200HACH 10258Turbidity 05/09/2022
Lab ID: AL2510002
Valid UntilInstrumentMethodAnalyte
CITY OF PLAINSNAAccreditation ID:
TX2510002(806) 456-2288Phone Number:Steve VasquezContact Name:
Approval Date: 12/19/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/19/2022
Monday, August 2, 2021 Page 64 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0430007
Valid UntilInstrumentMethodAnalyte
CITY OF PLANONAAccreditation ID:
TX0430007(972) 769-4272Phone Number:Jeff DavisContact Name:
Approval Date: 01/31/2019
OAKTON MULTIPARAMETER4500H-BpH 01/31/2022
OAKTON MULTIPARAMETER2550Temperature 01/31/2022
Lab ID: ALTP14736
Valid UntilInstrumentMethodAnalyte
CITY OF POINT COMFORT WTPNAAccreditation ID:
TX0290001(361) 987-5477Phone Number:Gregory RodriguezContact Name:
Approval Date: 09/20/2018
Titrator2320BAlkalinity 09/20/2021
Hach Pocket Colorimeter 24500CLO2-DChlorine Dioxide 09/20/2021
Hach Titralab AT 1000 Titrator AT1102
4500CLO2-EChlorite (at EP) 09/20/2021
Hach Pocket Colorimeter 24500CL-GFree Chlorine 09/20/2021
Oakton PH 700 pH Meter4500H-BpH 09/20/2021
Oakton PH 700 pH Meter2550Temperature 09/20/2021
B-EnvironmentalTOC 09/20/2021
Hach Pocket Colorimeter 24500CL-GTotal Chlorine 09/20/2021
Hach 2100AN Turbidimeter180.1Turbidity 09/20/2021
Lab ID: ALTP14935
Valid UntilInstrumentMethodAnalyte
CITY OF PORT NECHES WTPNAAccreditation ID:
TX1230010(409) 719-4281Phone Number:Phillip PryorContact Name:
Approval Date: 11/04/2019
Burette Titration2320BAlkalinity 11/04/2022
Sabine River AuthorityContract LabCalcium 11/04/2022
Hach DR 3900HACH 10260Free Chlorine 11/04/2022
Hach HQ430D150.1pH 11/04/2022
Hach DR3900365.1Phosphate 11/04/2022
Mercury Thermometer2550Temperature 11/04/2022
Sabine River AuthorityContract LabTOC 11/04/2022
Hach DR 3900HACH 10260Total Chlorine 11/04/2022
TU5200HACH 10258Turbidity 11/04/2022
Sabine River AuthorityContract LabUV254 11/04/2022
Lab ID: ALTP15153
Valid UntilInstrumentMethodAnalyte
CITY OF QUITMAN S.W.T.P.NAAccreditation ID:
TX2500003(903) 878-2456Phone Number:Kevin TaylorContact Name:
Approval Date: 12/12/2018
Titration2320BAlkalinity 12/12/2021
Hach ll Colorimeter4500CL-GFree Chlorine 12/12/2021
Thermo Sci. Orion, Hach pHD4500H-BpH 12/12/2021
Hach ll Colorimeter4500CL-GTotal Chlorine 12/12/2021
Hach 2100P, 1720E2130BTurbidity 12/12/2021
Monday, August 2, 2021 Page 65 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0670004
Valid UntilInstrumentMethodAnalyte
CITY OF RANGERNAAccreditation ID:
TX0670004(254) 647-3522Phone Number:Andrew LopezContact Name:
Approval Date: 09/14/2018
SL 1000HACH 10260Free Chlorine 09/14/2021
DR 9004500CL-GFree Chlorine 09/14/2021
Pocket Colorimeter II - LR & HR4500CL-GFree Chlorine 09/14/2021
Pocket Pro+ pH150.1, 4500H-BpH 09/14/2021
SL 1000150.1, 4500H-BpH 09/14/2021
SL 10002550Temperature 09/14/2021
Pocket Pro+ pH2550Temperature 09/14/2021
DR 9004500CL-GTotal Chlorine 09/14/2021
Pocket Colorimeter II4500CL-GTotal Chlorine 09/14/2021
Pocket Colorimeter II - LR & HR4500CL-GTotal Chlorine 09/14/2021
SL 1000HACH 10260Total Chlorine 09/14/2021
Lab ID: ALTP20832
Valid UntilInstrumentMethodAnalyte
CITY OF RAYMONDVILLE SWTPNAAccreditation ID:
TX2450001(956) 245-4929Phone Number:Javier RodriguezContact Name:
Approval Date: 06/04/2021
Titration Method2320BAlkalinity 06/04/2024
Capitol Controls Titrator4500CLO2-EChlorine Dioxide 06/04/2024
Hach Pocket Colorimeter II4500CL-DFree Chlorine 06/04/2024
Hach SenSION EC714500H-BpH 06/04/2024
Ana-Lab CorporationContract LabPOE Chlorite 06/04/2024
Hach SenSION EC712550Temperature 06/04/2024
Ana-Lab CorporationContract LabTOC 06/04/2024
Hach CL17 Total Chlorine Analyzer4500CL-GTotal Chlorine 06/04/2024
Hach 2100N Turbidimeter2130BTurbidity 06/04/2024
Lab ID: AL0370039
Valid UntilInstrumentMethodAnalyte
CITY OF REKLAWNAAccreditation ID:
TX0370039(936) 369-4368Phone Number:Francisco HernandezContact Name:
Approval Date: 07/09/2019
Oakton PCTS 504500H-BpH 07/09/2022
Oakton PCTS 502550Temperature 07/09/2022
Monday, August 2, 2021 Page 66 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0790023
Valid UntilInstrumentMethodAnalyte
CITY OF RICHMONDNAAccreditation ID:
TX0790023(281) 342-0559Phone Number:Michael MoodyContact Name:
Approval Date: 01/11/2021
DR900 Multi-Parameter Colorimeter #3
4500CL-GFree Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #4
4500CL-GFree Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #2
4500CL-GFree Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #7
4500CL-GFree Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #1
4500CL-GFree Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #5
4500CL-GFree Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #6
4500CL-GFree Chlorine 01/11/2022
Plant Pro Fast pH2 (Meter #3)4500H-BpH 01/11/2022
Plant Pro Fast pH2 (Meter #4)4500H-BpH 01/11/2022
(Hach) Lange pHC201150.1pH 01/11/2022
Oakton pH Tester 30 (Meter #1)4500H-BpH 01/11/2022
Oakton pH Tester 30 (Meter #2)4500H-BpH 01/11/2022
Plant Pro Fast pH2 (Meter #4)2550Temperature 01/11/2022
Plant Pro Fast pH2 (Meter #3)2550Temperature 01/11/2022
(Hach) Lange pHC2012550Temperature 01/11/2022
Oakton pH Tester 30 (Meter #2)2550Temperature 01/11/2022
Oakton pH Tester 30 (Meter #1)2550Temperature 01/11/2022
DR900 Multi-Parameter Colorimeter #7
4500CL-GTotal Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #5
4500CL-GTotal Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #3
4500CL-GTotal Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #2
4500CL-GTotal Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #4
4500CL-GTotal Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #1
4500CL-GTotal Chlorine 01/11/2022
DR900 Multi-Parameter Colorimeter #6
4500CL-GTotal Chlorine 01/11/2022
Monday, August 2, 2021 Page 67 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP411212
Valid UntilInstrumentMethodAnalyte
CITY OF RICHMOND SWTPNAAccreditation ID:
TX0790023(832) 344-8147Phone Number:Kenneth BartlingContact Name:
Approval Date: 03/11/2021
Titration2320BAlkalinity 03/11/2022
EnvirodyneContract LabCalcium 03/11/2022
Palin ChlordioX Plus Test KitCHLORDIOX PLUSChlorine Dioxide 03/11/2022
DR9004500CL-GFree Chlorine 03/11/2022
DR60004500CL-GFree Chlorine 03/11/2022
Hach 440d4500H-BpH 03/11/2022
Palin ChlordioX Plus Test KitCHLORDIOX PLUSPOE Chlorite 03/11/2022
Digital Thermometer2550Temperature 03/11/2022
EnvirodyneContract LabTOC 03/11/2022
DR60004500CL-GTotal Chlorine 03/11/2022
DR9004500CL-GTotal Chlorine 03/11/2022
TU5300HACH 10258Turbidity 03/11/2022
TU5400HACH 10258Turbidity 03/11/2022
TU5200HACH 10258Turbidity 03/11/2022
Lab ID: ALTP410085
Valid UntilInstrumentMethodAnalyte
CITY OF RIO GRANDE CITY DURAN SWTP - PLANT 2 NAAccreditation ID:
TX2140018(956) 735-4309Phone Number:Ricardo BazanContact Name:
Approval Date: 04/25/2019
Titration Method2320BAlkalinity 04/25/2022
Capital Controls Amperometric Titrator
4500CLO2-EChlorine Dioxide 04/25/2022
Hach Pocket Colorimeter II4500CL-DFree Chlorine 04/25/2022
Hach SensION pH+314500H-BpH 04/25/2022
EurofinsContract LabPOE Chlorite 04/25/2022
Hach SensION pH+312550Temperature 04/25/2022
Pollution Control ServicesContract LabTOC 04/25/2022
Hach CL17 Total Chlorine Analyzer4500CL-DTotal Chlorine 04/25/2022
Hach 2100N Turbidimeter180.1Turbidity 04/25/2022
Monday, August 2, 2021 Page 68 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15064
Valid UntilInstrumentMethodAnalyte
CITY OF RIO GRANDE CITY PUD - PLANT 1 NAAccreditation ID:
TX2140018(956) 735-4309Phone Number:Ricardo BazanContact Name:
Approval Date: 04/25/2019
Titration Method2320BAlkalinity 04/25/2022
Hach Amperometric Titrator 193004500CLO2-EChlorine Dioxide 04/25/2022
Hach Pocket Colorimeter II4500CL-DFree Chlorine 04/25/2022
Hach SensION pH+314500H-BpH 04/25/2022
EurofinsContract LabPOE Chlorite 04/25/2022
Hach SensION pH+312550Temperature 04/25/2022
Pollution Control ServicesContract LabTOC 04/25/2022
Hach CL17 Total Chlorine Analyzer4500CL-DTotal Chlorine 04/25/2022
Hach 2100N Turbidimeter180.1Turbidity 04/25/2022
Lab ID: ALTP15079
Valid UntilInstrumentMethodAnalyte
CITY OF RIVER OAKS WTP LABNAAccreditation ID:
TX2200069(817) 626-5421Phone Number:Marvin C. Gregory IIIContact Name:
324
Approval Date: 04/02/2019
Hach Sension Plus PH 312550Temperature 04/02/2022
Pace Analytical ServicesContract LabTOC 04/02/2022
Lab ID: ALTP410377
Valid UntilInstrumentMethodAnalyte
CITY OF ROBERT LEENAAccreditation ID:
TX0410002(325) 453-2831Phone Number:Billy WilliamsContact Name:
Approval Date: 01/14/2019
HACH - Colorimeter II4500CL-GFree Chlorine 01/14/2022
HACH - Colorimeter II4500CL-GTotal Chlorine 01/14/2022
Lab ID: AL1770001
Valid UntilInstrumentMethodAnalyte
CITY OF ROSCOENAAccreditation ID:
TX1770001(325) 766-3871Phone Number:Joe VickContact Name:
Approval Date: 12/18/2018
Myron L Company Ultrameterll 6PFC
4500H-BpH 12/18/2021
Myron L Company Ultrameterll 6PFC
2550Temperature 12/18/2021
Lab ID: AL0570056
Valid UntilInstrumentMethodAnalyte
CITY OF ROWLETTNAAccreditation ID:
TX0570056(972) 463-3912Phone Number:Patrick MayContact Name:
Approval Date: 06/22/2020
Pocket Colorimeter II4500CL-GFree Chlorine 06/22/2023
Oakton pHTestr 304500H-BpH 06/22/2023
Oakton pHTestr 302550Temperature 06/22/2023
Pocket Colorimeter II4500CL-GTotal Chlorine 06/22/2023
Monday, August 2, 2021 Page 69 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2490017
Valid UntilInstrumentMethodAnalyte
CITY OF RUNAWAY BAYNAAccreditation ID:
TX2490017(940) 781-5270Phone Number:John FluhartyContact Name:
Approval Date: 01/18/2019
HACH Digital Titrator2320BAlkalinity 01/18/2022
HACH Pocket Colorimeter II4500CL-GFree Chlorine 01/18/2022
HACH Sension 1564500H-BpH 01/18/2022
HACH Sension 1562550Temperature 01/18/2022
HACH Pocket Colorimeter II/CL174500CL-GTotal Chlorine 01/18/2022
TU5200 Benchtop TurbidimeterHACH 10258Turbidity 01/18/2022
Lab ID: ALTP14893
Valid UntilInstrumentMethodAnalyte
CITY OF SAN JUAN - PLANT 2NAAccreditation ID:
TX1080010(956) 556-2103Phone Number:Francisco FloresContact Name:
Approval Date: 09/17/2020
Kimble Graduated Buret2320BAlkalinity 09/17/2023
Palintest KemioCHLORDIOX PLUSChlorine Dioxide 09/17/2023
Palintest KemioCHLORDIOX PLUSChlorite 09/17/2023
Hach Pocket Colormeter4500CL-FFree Chlorine 09/17/2023
AE 150 Fisher Scientific4500H-BpH 09/17/2023
AE 150 Fisher Scientific2550Temperature 09/17/2023
Ana-LabContract LabTOC 09/17/2023
Hach Pocket Colormeter4500CL-ETotal Chlorine 09/17/2023
Hach 2100N2130BTurbidity 09/17/2023
Ana-LabContract LabUV254 09/17/2023
Lab ID: ALTP14827
Valid UntilInstrumentMethodAnalyte
CITY OF SEGUIN - SWTP 1NAAccreditation ID:
TX0940002(830) 386-2218Phone Number:Ricardo JimenezContact Name:
Approval Date: 06/12/2019
Hach Alkalinity Test Kit AL-AP2320BAlkalinity 06/12/2022
Hach Colorimeter, Swans AMI Trides
4500CL-GFree Chlorine 06/12/2022
Hach Sension Ph3150.1pH 06/12/2022
Hach Sension Ph3, Swans AMI Trides
2550Temperature 06/12/2022
Hach 2100Q, Signet 4150, Swans AMI Trides
180.1Turbidity 06/12/2022
Monday, August 2, 2021 Page 70 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14828
Valid UntilInstrumentMethodAnalyte
CITY OF SEGUIN - SWTP 2NAAccreditation ID:
TX0940002(830) 386-2218Phone Number:Ricardo JimenezContact Name:
Approval Date: 06/18/2019
Hach Alkalinity Test Kit AL-AP2320BAlkalinity 06/18/2022
Hach Colorimeter, Swans AMI Trides
4500CL-GFree Chlorine 06/18/2022
Hach Sension Ph3150.1pH 06/18/2022
Hach Sension Ph3, Swans AMI Trides
2550Temperature 06/18/2022
Hach 2100Q, Signet 4150, Swans AMI Trides
180.1Turbidity 06/18/2022
Lab ID: AL0150492
Valid UntilInstrumentMethodAnalyte
CITY OF SELMANAAccreditation ID:
TX0150492(210) 651-7868Phone Number:Kellen StanforthContact Name:
Approval Date: 03/23/2021
HACH 9532000150.1pH 03/23/2024
HACH 95320002550Temperature 03/23/2024
Lab ID: AL1520003
Valid UntilInstrumentMethodAnalyte
CITY OF SHALLOWATERNAAccreditation ID:
TX1520003(806) 832-4521Phone Number:Russel MosesContact Name:
Approval Date: 07/31/2019
HACH SensION +PH14500H-BpH 07/31/2022
HACH SensION +PH12550Temperature 07/31/2022
Lab ID: AL0910006
Valid UntilInstrumentMethodAnalyte
CITY OF SHERMANNAAccreditation ID:
TX0910006(903) 892-7258Phone Number:Dewayne SutherlandContact Name:
Approval Date: 08/14/2019
Buret Titration2320BAlkalinity 08/14/2022
Hach HQ440b2510BConductivity 08/14/2022
Hach DR 6000, 3900, 820, & 9004500CL-GFree Chlorine 08/14/2022
Hach HQ440b150.1pH 08/14/2022
Thermometric2550Temperature 08/14/2022
Eurofins Eaton Analytical, Inc.Contract LabTOC 08/14/2022
Hach DR 6000, 3900, 820, & 9004500CL-GTotal Chlorine 08/14/2022
Online CL174500CL-GTotal Chlorine 08/14/2022
Hach 2100N180.1Turbidity 08/14/2022
Hach 1720 E2130BTurbidity 08/14/2022
Eurofins Eaton Analytical, Inc.Contract LabUV254 08/14/2022
Lab ID: 48164
Valid UntilInstrumentMethodAnalyte
CITY OF SHERMAN WATER QUALITYT104704284Accreditation ID:
TX0910006(903) 892-7286Phone Number:Nathan WhiddonContact Name:
Approval Date: 10/29/2018
Hach Pocket Colorimeter II4500CL-GFree Chlorine 10/29/2021
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 10/29/2021
Monday, August 2, 2021 Page 71 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1000002
Valid UntilInstrumentMethodAnalyte
CITY OF SILSBEENAAccreditation ID:
TX1000002(409) 385-3535Phone Number:Russell HuttoContact Name:
Approval Date: 09/12/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 09/12/2022
Lab ID: AL2080001
Valid UntilInstrumentMethodAnalyte
CITY OF SNYDERNAAccreditation ID:
TX2080001(325) 423-0332Phone Number:David KennerContact Name:
Approval Date: 02/08/2021
Hach SL10002320BAlkalinity 02/08/2024
De Nora 17T2012ACB4500CLO2-DChlorine Dioxide 02/08/2024
Hach HQ440d150.1pH 02/08/2024
Hach PCH281 Probe150.1pH 02/08/2024
De Nora 17T2012ACB4500CLO2-EPOE Chlorite 02/08/2024
Hach HQ440d2550Temperature 02/08/2024
Hach PCH281 Probe2550Temperature 02/08/2024
City of AbileneContract LabTOC 02/08/2024
Hach CL174500CL-DTotal Chlorine 02/08/2024
Hach TU5200HACH 10258Turbidity 02/08/2024
Lab ID: AL0910045
Valid UntilInstrumentMethodAnalyte
CITY OF SOUTHMAYDNAAccreditation ID:
TX0910045(903) 744-2599Phone Number:Mark PattersonContact Name:
Approval Date: 11/13/2018
Hach Pocket Colorimeter II4500CL-GFree Chlorine 11/13/2021
Oakton EcoTester PH2+4500H-BpH 11/13/2021
Oakton EcoTester PH2+2550Temperature 11/13/2021
Lab ID: ALTP14948
Valid UntilInstrumentMethodAnalyte
CITY OF STAMFORDNAAccreditation ID:
TX1270003(325) 773-2591Phone Number:Casey ChambersContact Name:
Approval Date: 07/31/2019
Titration2320BAlkalinity 07/31/2022
LCRAContract LabCalcium 07/31/2022
Palin Test KitCHLORDIOX PLUSChlorine Dioxide 07/31/2022
Palin Test KitCHLORDIOX PLUSChlorite (at EP) 07/31/2022
Hach Pocket Colorimeter II4500CL-GFree Chlorine 07/31/2022
Hach Sension34500H-BpH 07/31/2022
Digital Thermometer2550Temperature 07/31/2022
Ana-Lab, CorpContract LabTOC 07/31/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 07/31/2022
Hach 1720E, 2100N2130BTurbidity 07/31/2022
Ana-Lab, CorpContract LabUV254 07/31/2022
Monday, August 2, 2021 Page 72 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1590001
Valid UntilInstrumentMethodAnalyte
CITY OF STANTONNAAccreditation ID:
TX1590001(432) 756-2525Phone Number:Jessie MontezContact Name:
Approval Date: 07/27/2020
Hach AL-TA2320BAlkalinity 07/27/2023
Hach SL1000HACH 10260Free Chlorine 07/27/2023
Hach Sencon 10.01150.3pH 07/27/2023
USA Blue2550Temperature 07/27/2023
City of Odessa LabContract LabTOC 07/27/2023
Hach SL1000HACH 10260Total Chlorine 07/27/2023
Hach 1720E180.1Turbidity 07/27/2023
Lab ID: AL1170003
Valid UntilInstrumentMethodAnalyte
CITY OF STINNETTNAAccreditation ID:
TX1170003(806) 878-2422Phone Number:Donald SchenkContact Name:
Approval Date: 11/16/2018
LCRAContract LabCalcium 11/16/2021
LCRAContract LabConductivity 11/16/2021
LCRAContract LabOrthophosphate 11/16/2021
YSI Environmental pH 1004500H-BpH 11/16/2021
LCRAContract LabSilica 11/16/2021
YSI Environmental pH 1002550Temperature 11/16/2021
Lab ID: AL1820005
Valid UntilInstrumentMethodAnalyte
CITY OF STRAWNNAAccreditation ID:
TX1820005(254) 672-5311Phone Number:Kyle WheelerContact Name:
Approval Date: 09/23/2020
Hach Aquacheck2320BAlkalinity 09/23/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 09/23/2023
Hach HQ430d Flexi150.1pH 09/23/2023
Hach HQ430d Flexi2550Temperature 09/23/2023
Ana-LabContract LabTOC 09/23/2023
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 09/23/2023
Hach 2100Q2130BTurbidity 09/23/2023
Monday, August 2, 2021 Page 73 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0790296
Valid UntilInstrumentMethodAnalyte
CITY OF SUGAR LAND - GREATWOODNAAccreditation ID:
TX0790296(281) 275-2478Phone Number:Ashley KirkpatrickContact Name:
Approval Date: 12/02/2020
HACH Pocket II4500CL-GFree Chlorine 12/02/2023
DR9004500CL-GFree Chlorine 12/02/2023
SL1000HACH 10260Free Chlorine 12/02/2023
HACH HQ40D4500H-BpH 12/02/2023
Pocket Pro +4500H-BpH 12/02/2023
SL10004500H-BpH 12/02/2023
HACH HQ40D2550Temperature 12/02/2023
Pocket Pro +2550Temperature 12/02/2023
SL10002550Temperature 12/02/2023
Lab ID: AL0790253
Valid UntilInstrumentMethodAnalyte
CITY OF SUGAR LAND - NEW TERRITORY NAAccreditation ID:
TX0790253(281) 275-2478Phone Number:Ashley KirkpatrickContact Name:
Approval Date: 12/02/2020
DR900 Colorimeter4500CL-GFree Chlorine 12/02/2023
SL1000HACH 10260Free Chlorine 12/02/2023
HACH Pocket II4500CL-GFree Chlorine 12/02/2023
SL10004500H-BpH 12/02/2023
Pocket Pro +4500H-BpH 12/02/2023
HACH HQ40D4500H-BpH 12/02/2023
DR900 Colorimeter4500P-EPhosphate 12/02/2023
HACH Pocket II4500P-EPhosphate 12/02/2023
SL10002550Temperature 12/02/2023
Pocket Pro +2550Temperature 12/02/2023
HACH HQ40D2550Temperature 12/02/2023
Lab ID: AL0790354
Valid UntilInstrumentMethodAnalyte
CITY OF SUGAR LAND RIVER PARKNAAccreditation ID:
TX0790354(281) 275-2478Phone Number:Ashley KirkpatrickContact Name:
Approval Date: 12/02/2020
DR9004500CL-GFree Chlorine 12/02/2023
HACH Pocket II4500CL-GFree Chlorine 12/02/2023
SL1000HACH 10260Free Chlorine 12/02/2023
Pocket Pro+4500H-BpH 12/02/2023
HACH HQ40D4500H-BpH 12/02/2023
SL10004500H-BpH 12/02/2023
HACH HQ40D2550Temperature 12/02/2023
Pocket Pro+2550Temperature 12/02/2023
SL10002550Temperature 12/02/2023
Monday, August 2, 2021 Page 74 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP410579
Valid UntilInstrumentMethodAnalyte
CITY OF SUGAR LAND SWTPNAAccreditation ID:
TX0790005(281) 275-2478Phone Number:Ashley KirkpatrickContact Name:
Approval Date: 12/02/2020
KemioCHLORDIOX PLUSChlorine Dioxide 12/02/2023
KemioCHLORDIOX PLUSPOE Chlorite 12/02/2023
Eurofins Xenco, LLCContract LabTOC 12/02/2023
Lab ID: ALTP14915
Valid UntilInstrumentMethodAnalyte
CITY OF SULPHUR SPRINGS SWTPNAAccreditation ID:
TX1120002(903) 439-2891Phone Number:Russell HamContact Name:
Approval Date: 05/18/2021
Burette Titration2320BAlkalinity 05/18/2024
Ana-Lab CorporationContract LabCalcium 05/18/2024
PalinTest ChlordioX PlusCHLORDIOX PLUSChlorine Dioxide 05/18/2024
Ana-Lab CorporationContract LabConductivity 05/18/2024
Hach 39004500CL-GFree Chlorine 05/18/2024
Palin ChlordioX PlusCHLOROSENSEFree Chlorine 05/18/2024
Ana-Lab CorporationContract LabHardness 05/18/2024
Ana-Lab CorporationContract LabOrthophosphate 05/18/2024
Hach HQ411d4500H-BpH 05/18/2024
Hach Pocket Pro+4500H-BpH 05/18/2024
PalinTest ChlordioX PlusCHLORDIOX PLUSPOE Chlorite 05/18/2024
Ana-Lab CorporationContract LabSilica 05/18/2024
VWR/Control Company2550Temperature 05/18/2024
Hach Pocket Pro+2550Temperature 05/18/2024
Analytical Environmental Laboratories
Contract LabTOC 05/18/2024
Hach 39004500CL-GTotal Chlorine 05/18/2024
Palin ChlordioX PlusCHLOROSENSETotal Chlorine 05/18/2024
Hach 1720E180.1Turbidity 05/18/2024
Hach TL2300180.1Turbidity 05/18/2024
Analytical Environmental Laboratories
Contract LabUV254 05/18/2024
Lab ID: AL2240001
Valid UntilInstrumentMethodAnalyte
CITY OF THROCKMORTONNAAccreditation ID:
TX2240001(940) 862-3107Phone Number:Jimmy CollinsContact Name:
Approval Date: 05/24/2021
Hach Digital Titrator2320BAlkalinity 05/24/2024
Hach DR3004500CL-DFree Chlorine 05/24/2024
Hach Sension 3150.1pH 05/24/2024
Hach Sension 32550Temperature 05/24/2024
Ana-LabContract LabTOC 05/24/2024
Hach DR3004500CL-DTotal Chlorine 05/24/2024
Hach 2100QHACH 10258Turbidity 05/24/2024
Monday, August 2, 2021 Page 75 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14870
Valid UntilInstrumentMethodAnalyte
CITY OF TRINIDAD SWTPNAAccreditation ID:
TX1070004(903) 477-1775Phone Number:Valerie M. HamrickContact Name:
Approval Date: 07/29/2019
Titration2320BAlkalinity 07/29/2022
Hach Colorimeter 2D1253-86Free Chlorine 07/29/2022
Orion Model 4204500H-BpH 07/29/2022
Orion Model 4202550Temperature 07/29/2022
Hach Colorimeter 2D1253-86Total Chlorine 07/29/2022
AQ 4500 OrionHACH 10258Turbidity 07/29/2022
Lab ID: ALTP15057
Valid UntilInstrumentMethodAnalyte
CITY OF TYLER - GOLDEN ROAD WTPNAAccreditation ID:
TX2120004(903) 939-8716Phone Number:Kate DietzContact Name:
Approval Date: 02/05/2021
Burette Titration2320BAlkalinity 02/05/2024
Hach pH Electrode2320Alkalinity 02/05/2024
Burette3500CA-DCalcium 02/05/2024
CDC401 Electrode2510BConductivity 02/05/2024
Hach SL 10002510BConductivity 02/05/2024
Hach DR19004500CL-GFree Chlorine 02/05/2024
Hach HQ411d Bench Top150.1pH 02/05/2024
Ana-LabContract LabPOE Chlorite 02/05/2024
Hach PHC28101 Electrode2550Temperature 02/05/2024
Ana-LabContract LabTOC 02/05/2024
Hach DR19004500CL-GTotal Chlorine 02/05/2024
Hach TU5200 Bench Top180.1Turbidity 02/05/2024
Ana-LabContract LabUV254 02/05/2024
Monday, August 2, 2021 Page 76 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP20087
Valid UntilInstrumentMethodAnalyte
CITY OF TYLER - LAKE PALESTINE WTP NAAccreditation ID:
TX2120004(903) 939-8716Phone Number:Kate DietzContact Name:
Approval Date: 02/05/2021
Burette Titration2320BAlkalinity 02/05/2024
Hach pH Electrode2320BAlkalinity 02/05/2024
Burette Titration3500CA-DCalcium 02/05/2024
CDC401 Electrode2510BConductivity 02/05/2024
Hach SL10002510BConductivity 02/05/2024
Hach DR19004500CL-GFree Chlorine 02/05/2024
Hach HQ411d150.1pH 02/05/2024
Ana-LabContract LabPOE Chlorite 02/05/2024
Hach PHC28101 Electrode2550Temperature 02/05/2024
Ana-LabContract LabTOC 02/05/2024
Hach DR19004500CL-GTotal Chlorine 02/05/2024
Hach TU5200 Bench Top180.1Turbidity 02/05/2024
Ana-LabContract LabUV254 02/05/2024
Lab ID: AL0550001
Valid UntilInstrumentMethodAnalyte
CITY OF VAN HORNNAAccreditation ID:
TX0550001(432) 210-2863Phone Number:Jaime HudsonContact Name:
Approval Date: 04/24/2020
Hach Pocket ColorimeterHACH 10260Free Chlorine 04/24/2023
Lab ID: AL2440001
Valid UntilInstrumentMethodAnalyte
CITY OF VERNONNAAccreditation ID:
TX2440001(940) 552-9961Phone Number:Darell KennonContact Name:
Approval Date: 03/13/2019
HACH CLRMTR II SWIFTEST 5870023
4500CL-GFree Chlorine 03/13/2022
HACH DR300 s/n 19030A0009194500CL-GFree Chlorine 04/01/2022
HACH Pocket Pro pH 953100004500H-BpH 03/13/2022
HACH Pocket Pro pH 953100002550Temperature 03/13/2022
Monday, August 2, 2021 Page 77 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14799
Valid UntilInstrumentMethodAnalyte
CITY OF WAXAHACHIE - HOWARD ROAD SWTP NAAccreditation ID:
TX0700008(469) 309-4320Phone Number:David BaileyContact Name:
Approval Date: 12/16/2020
Buret Assembly2320BAlkalinity 12/16/2023
Lower Colorado River AuthorityContract LabCalcium 12/16/2023
DeNora Amperometric Titrator4500CLO2-EChlorine Dioxide 12/16/2023
DeNora Amperometric Titrator4500CLO2-EChlorite 12/16/2023
Thermo Scientific VSTAR Pro2510BConductivity 12/16/2023
Hach CL174500CL-GFree Chlorine 12/16/2023
Thermo Scientific VSTAR Pro4500H-BpH 12/16/2023
Trinity River AuthorityContract LabPhosphate 12/16/2023
Trinity River AuthorityContract LabSilica 12/16/2023
Thermo Scientific VSTAR Pro2550Temperature 12/16/2023
Trinity River AuthorityContract LabTOC 12/16/2023
Hach CLT10334.0Total Chlorine 12/16/2023
TU5300SC2130BTurbidity 12/16/2023
Trinity River AuthorityContract LabUV254 12/16/2023
Lab ID: ALTP21871
Valid UntilInstrumentMethodAnalyte
CITY OF WAXAHACHIE - SOKOLL MEMBRANE SWTP NAAccreditation ID:
TX0700008(469) 309-4320Phone Number:David BaileyContact Name:
Approval Date: 12/16/2020
Buret Assembly2320BAlkalinity 12/16/2023
Lower Colorado River AuthorityContract LabCalcium 12/16/2023
DeNora Amperometric Titrator4500CLO2-EChlorine Dioxide 12/16/2023
DeNora Amperometric Titrator4500CLO2-EChlorite 12/16/2023
Thermo Scientific VSTAR Pro2510BConductivity 12/16/2023
Hach CL174500CL-GFree Chlorine 12/16/2023
Thermo Scientific VSTAR Pro4500H-BpH 12/16/2023
Trinity River AuthorityContract LabPhosphate 12/16/2023
Trinity River AuthorityContract LabSilica 12/16/2023
Thermo Scientific VSTAR Pro2550Temperature 12/16/2023
Trinity River AuthorityContract LabTOC 12/16/2023
Hach CL174500CL-GTotal Chlorine 12/16/2023
TU5300SC/TU5400SC2130BTurbidity 12/16/2023
Trinity River AuthorityContract LabUV254 12/16/2023
Monday, August 2, 2021 Page 78 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1840005
Valid UntilInstrumentMethodAnalyte
CITY OF WEATHERFORDNAAccreditation ID:
TX1840005(817) 598-4010Phone Number:Taz ThurmanContact Name:
Approval Date: 07/23/2021
Hach Digital Titrator2320BAlkalinity 07/23/2024
HACH AMPEROMETRIC TITRATOR4500CLO2-EChlorine Dioxide 07/23/2024
Hach Sension 72510BConductivity 07/23/2024
Hach DR60004500CL-GFree Chlorine 07/23/2024
HACH SENSION PH 314500H-BpH 07/23/2024
HACH AMPEROMETRIC TITRATOR4500CLO2-EPOE Chlorite 07/23/2024
DURAC Plus/NIST Certified2550Temperature 07/23/2024
Hach DR60004500CL-GTotal Chlorine 07/23/2024
Hach 2100ANHACH 10258Turbidity 07/23/2024
Hach TU5200180.1Turbidity 07/23/2024
Lab ID: ALTP14825
Valid UntilInstrumentMethodAnalyte
CITY OF WHITE OAK - WATER TREATMENT PLANT NAAccreditation ID:
TX0920006(903) 759-9212Phone Number:Beaux HueyContact Name:
Approval Date: 01/06/2021
Titration2320BAlkalinity 01/06/2024
Fisher Porter Titrator4500CLO2-EChlorine Dioxide 01/06/2024
Hach Cl17, Colorimeter4500CL-GFree Chlorine 01/06/2024
Orion 5 Star Probe4500H-BpH 01/06/2024
Fisher Porter Titrator4500CLO2-EPOE Chlorite 01/06/2024
ATC Probe on pH Meter2550Temperature 01/06/2024
Ana-Lab CorporationContract LabTOC 01/06/2024
Hach Cl17, Colorimeter4500CL-GTotal Chlorine 01/06/2024
Hach 1720E, 2100Q2130BTurbidity 01/06/2024
Monday, August 2, 2021 Page 79 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15131
Valid UntilInstrumentMethodAnalyte
CITY OF WICHITA FALLS CYPRESS 1961 WTP NAAccreditation ID:
TX2430001(940) 691-1153Phone Number:Hunter AdamsContact Name:
Approval Date: 09/14/2020
KEM Autotitrator2320BAlkalinity 09/14/2023
KEM Autotitrator3500-CA BCalcium 09/14/2023
KEM Autotitrator4500CLO2-EChlorine Dioxide 09/14/2023
KEM Autotitrator300.0Chlorite 09/14/2023
Orion Dual Star2510BConductivity 09/14/2023
KEM Autotitrator4500CL-DFree Chlorine 09/14/2023
Orion Dual Star4500H-BpH 09/14/2023
Thermo ICS5000300.0Phosphate 09/14/2023
Hach DR9004500SIO2-CSilica 09/14/2023
Traceable Lollipop Thermometer2550Temperature 09/14/2023
Shimadzu5310BTOC 09/14/2023
KEM Autotitrator4500CL-DTotal Chlorine 09/14/2023
Hach TL23002130BTurbidity 09/14/2023
Hach DR60005910BUV254 09/14/2023
Lab ID: ALTP15132
Valid UntilInstrumentMethodAnalyte
CITY OF WICHITA FALLS CYPRESS 1987 WTP NAAccreditation ID:
TX2430001(940) 691-1153Phone Number:Hunter AdamsContact Name:
Approval Date: 09/14/2020
KEM Autotitrator2320BAlkalinity 09/14/2023
KEM Autotitrator3500-CA BCalcium 09/14/2023
KEM Autotitrator4500CLO2-EChlorine Dioxide 09/14/2023
KEM Autotitrator300.0Chlorite 09/14/2023
Orion Dual Star2510BConductivity 09/14/2023
KEM Autotitrator4500CL-DFree Chlorine 09/14/2023
Orion Dual Star4500H-BpH 09/14/2023
Thermo ICS5000300.0Phosphate 09/14/2023
Hach DR9004500SIO2-CSilica 09/14/2023
Traceable Lollipop Thermometer2550Temperature 09/14/2023
Shimadzu5310BTOC 09/14/2023
KEM Autotitrator4500CL-DTotal Chlorine 09/14/2023
Hach TL23002130BTurbidity 09/14/2023
Hach DR60005910BUV254 09/14/2023
Monday, August 2, 2021 Page 80 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP21567
Valid UntilInstrumentMethodAnalyte
CITY OF WICHITA FALLS CYPRESS 2008 RO WTP NAAccreditation ID:
TX2430001(940) 691-1153Phone Number:Hunter AdamsContact Name:
Approval Date: 09/14/2020
KEM Autotitrator2320BAlkalinity 09/14/2023
KEM Autotitrator3500-CA BCalcium 09/14/2023
KEM Autotitrator4500CLO2-EChlorine Dioxide 09/14/2023
KEM Autotitrator300.0Chlorite 09/14/2023
Orion Dual Star2510BConductivity 09/14/2023
KEM Autotitrator4500CL-DFree Chlorine 09/14/2023
Orion Dual Star4500H-BpH 09/14/2023
Thermo ICS5000300.0Phosphate 09/14/2023
Hach DR9004500SIO2-CSilica 09/14/2023
Traceable Lollipop Thermometer2550Temperature 09/14/2023
Shimadzu5310BTOC 09/14/2023
KEM Autotitrator4500CL-DTotal Chlorine 09/14/2023
Hach TL23002130BTurbidity 09/14/2023
Hach DR60005910BUV254 09/14/2023
Lab ID: ALTP410071
Valid UntilInstrumentMethodAnalyte
CITY OF WICHITA FALLS CYPRESS 2010 WTP NAAccreditation ID:
TX2430001(940) 691-1153Phone Number:Hunter AdamsContact Name:
Approval Date: 09/14/2020
KEM Autotitrator2320BAlkalinity 09/14/2023
KEM Autotitrator3500-CA BCalcium 09/14/2023
KEM Autotitrator4500CLO2-EChlorine Dioxide 09/14/2023
KEM Autotitrator300.0Chlorite 09/14/2023
Orion Dual Star2510BConductivity 09/14/2023
KEM Autotitrator4500CL-DFree Chlorine 09/14/2023
Orion Dual Star4500H-BpH 09/14/2023
Thermo ICS5000300.0Phosphate 09/14/2023
Hach DR9004500SIO2-CSilica 09/14/2023
Traceable Lollipop Thermometer2550Temperature 09/14/2023
Shimadzu5310BTOC 09/14/2023
KEM Autotitrator4500CL-DTotal Chlorine 09/14/2023
Hach TL23002130BTurbidity 09/14/2023
Hach DR60005910BUV254 09/14/2023
Monday, August 2, 2021 Page 81 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: 48180
Valid UntilInstrumentMethodAnalyte
CITY OF WICHITA FALLS CYPRESS ENVIRONMENTAL LABORATORY T104704384Accreditation ID:
TX2430001(940) 691-1153Phone Number:Hunter AdamsContact Name:
Approval Date: 09/14/2020
KEM Autotitrator2320BAlkalinity 09/14/2023
KEM Autotitrator3500-CA BCalcium 09/14/2023
KEM Autotitrator4500CLO2-EChlorine Dioxide 09/14/2023
Orion Dual Star2510BConductivity 09/14/2023
KEM Autotitrator4500CL-DFree Chlorine 09/14/2023
Orion Dual Star4500H-BpH 09/14/2023
Thermo ICS5000300.0Phosphate 09/14/2023
KEM Autotitrator4500CLO2-EPOE Chlorite 09/14/2023
Hach DR9004500SIO2-CSilica 09/14/2023
Traceable Lollipop Thermometer2550Temperature 09/14/2023
Shimadzu5310BTOC 09/14/2023
KEM Autotitrator4500CL-DTotal Chlorine 09/14/2023
Hach TL23002130BTurbidity 09/14/2023
Hach DR60005910BUV254 09/14/2023
Lab ID: ALTP15134
Valid UntilInstrumentMethodAnalyte
CITY OF WICHITA FALLS JASPER 1951 WTP NAAccreditation ID:
TX2430001(940) 691-1153Phone Number:Hunter AdamsContact Name:
Approval Date: 09/14/2020
KEM Autotitrator2320BAlkalinity 09/14/2023
KEM Autotitrator3500-CA BCalcium 09/14/2023
KEM Autotitrator4500CLO2-EChlorine Dioxide 09/14/2023
KEM Autotitrator300.0Chlorite 09/14/2023
Orion Dual Star2510BConductivity 09/14/2023
KEM Autotitrator4500CL-DFree Chlorine 09/14/2023
Orion Dual Star4500H-BpH 09/14/2023
Thermo ICS5000300.0Phosphate 09/14/2023
Hach DR9004500SIO2-CSilica 09/14/2023
Traceable Lollipop Thermometer2550Temperature 09/14/2023
Shimadzu5310BTOC 09/14/2023
KEM Autotitrator4500CL-DTotal Chlorine 09/14/2023
Hach TL23002130BTurbidity 09/14/2023
Hach DR60005910BUV254 09/14/2023
Monday, August 2, 2021 Page 82 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP20695
Valid UntilInstrumentMethodAnalyte
CITY OF WICHITA FALLS JASPER 2005 WTP NAAccreditation ID:
TX2430001(940) 691-1153Phone Number:Hunter AdamsContact Name:
Approval Date: 09/14/2020
KEM Autotitrator2320BAlkalinity 09/14/2023
KEM Autotitrator3500-CA BCalcium 09/14/2023
KEM Autotitrator4500CLO2-EChlorine Dioxide 09/14/2023
KEM Autotitrator300.0Chlorite 09/14/2023
Orion Dual Star2510BConductivity 09/14/2023
KEM Autotitrator4500CL-DFree Chlorine 09/14/2023
Orion Dual Star4500H-BpH 09/14/2023
Thermo ICS5000300.0Phosphate 09/14/2023
Hach DR9004500SIO2-CSilica 09/14/2023
Traceable Lollipop Thermometer2550Temperature 09/14/2023
Shimadzu5310BTOC 09/14/2023
KEM Autotitrator4500CL-DTotal Chlorine 09/14/2023
Hach TL23002130BTurbidity 09/14/2023
Hach DR60005910BUV254 09/14/2023
Lab ID: AL1840027
Valid UntilInstrumentMethodAnalyte
CITY OF WILLOW PARKNAAccreditation ID:
TX1840027(817) 694-4012Phone Number:Michael FloresContact Name:
Approval Date: 04/16/2021
Hach Pocket Colorimeter4500CL-GFree Chlorine 09/29/2023
Hach4500H-BpH 09/29/2023
Hach Pocket Pro+ Model 9532000150.1pH 04/16/2024
Thermometer2550Temperature 09/29/2023
Hach Pocket Pro+ Model 95320002550Temperature 04/16/2024
Hach Pocket Colorimeter4500CL-GTotal Chlorine 09/29/2023
Lab ID: ALTP15122
Valid UntilInstrumentMethodAnalyte
CITY OF WILLS POINT SWTPNAAccreditation ID:
TX2340005(903) 910-6833Phone Number:William Lamey IVContact Name:
Approval Date: 06/21/2021
Hach Titrator2320BAlkalinity 06/21/2024
DR3900/SL10004500CL-GFree Chlorine 06/21/2024
HQ411D150.1pH 06/21/2024
HQ411D2550Temperature 06/21/2024
Ana-LabContract LabTOC 06/21/2024
DR3900/SL10004500CL-GTotal Chlorine 06/21/2024
TL 2300180.1Turbidity 06/21/2024
Ana-LabContract LabUV254 06/21/2024
Monday, August 2, 2021 Page 83 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1700304
Valid UntilInstrumentMethodAnalyte
CITY OF WOOD BRANCH VILLAGENAAccreditation ID:
TX1700304(832) 428-0864Phone Number:Hector OrtizContact Name:
Approval Date: 04/24/2019
Hach DR900HACH 10260Free Chlorine 04/24/2022
Lab ID: AL1011681
Valid UntilInstrumentMethodAnalyte
CLAY ROAD MUDNAAccreditation ID:
TX1011681(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL0460153
Valid UntilInstrumentMethodAnalyte
CLEAR WATER ESTATESNAAccreditation ID:
TX0460153(830) 312-4600Phone Number:Adam GonzalesContact Name:
Approval Date: 01/29/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/29/2024
Lab ID: AL0460019
Valid UntilInstrumentMethodAnalyte
CLWSC CANYON LAKE SHORESNAAccreditation ID:
TX0460019(830) 312-4560Phone Number:Laura GloriaContact Name:
Approval Date: 10/28/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 10/28/2023
Lab ID: AL1110050
Valid UntilInstrumentMethodAnalyte
COMANCHE PEAK NORTHNAAccreditation ID:
TX1110050(254) 967-2273Phone Number:Gary AardalContact Name:
Approval Date: 11/21/2019
Hach Pocket Pro 932004500H-BpH 11/21/2022
Hach Pocket Pro 932002550Temperature 11/21/2022
Lab ID: AL1160052
Valid UntilInstrumentMethodAnalyte
COMBINED CONSUMERS SUDNAAccreditation ID:
TX1160052(903) 356-3321Phone Number:Dustin HaywoodContact Name:
300
Approval Date: 06/09/2021
Digital Titrator2320BAlkalinity 06/09/2024
Hach Sension3150.1pH 06/09/2024
Sper Scientific2550Temperature 06/09/2024
Ana LabContract LabTOC 06/09/2024
Hach DR 3900HACH 10260Total Chlorine 06/09/2024
Hach 2100 N180.1Turbidity 06/09/2024
Ana LabContract LabUV254 06/09/2024
Monday, August 2, 2021 Page 84 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2200044
Valid UntilInstrumentMethodAnalyte
COMMUNITY WSCNAAccreditation ID:
TX2200044(940) 781-5270Phone Number:John FluhartyContact Name:
Approval Date: 04/14/2021
HACH Digital Titrator2320BAlkalinity 04/14/2024
HACH Pocket Colorimeter II4500CL-GFree Chlorine 04/14/2024
HACH Sension 1564500H-BpH 04/14/2024
HACH Sension 1562550Temperature 04/14/2024
HACH Pocket Colorimeter II/CL174500CL-GTotal Chlorine 04/14/2024
2100N Benchtop TurbidimeterHACH 10258Turbidity 04/14/2024
Lab ID: AL2330070
Valid UntilInstrumentMethodAnalyte
COMSTOCK BORDER PATROL STATION COMPLEX NAAccreditation ID:
TX2330070(830) 876-8654Phone Number:Charlene GreenhillContact Name:
Approval Date: 11/24/2020
Oakton ECO Testr4500H-BpH 11/24/2023
Oakton ECO Testr2550Temperature 11/24/2023
Lab ID: AL1012024
Valid UntilInstrumentMethodAnalyte
CONOCO PHILLIPS 66 FOODMARTNAAccreditation ID:
TX1012024(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 01/13/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 01/13/2023
Lab ID: AL0020017
Valid UntilInstrumentMethodAnalyte
CONOCOPHILLIPS GOLDSMITH FIELD OFFICE PWS NAAccreditation ID:
TX0020017(720) 387-9339Phone Number:Keith Davidson/Tetra Tech,Contact Name:
Approval Date: 11/28/2018
Extech EC5002510BConductivity 11/28/2021
HACH Pocket Colorimeter ll #5870000
4500CL-GFree Chlorine 11/28/2021
Extech EC5004500H-BpH 11/28/2021
Extech EC5002550Temperature 11/28/2021
Lab ID: AL1700225
Valid UntilInstrumentMethodAnalyte
CONROE BAY WATER SEWER SUPPLYNAAccreditation ID:
TX1700225(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL0450051
Valid UntilInstrumentMethodAnalyte
COPANO PROCESSING HOUSTON CENTRAL GAS PL NAAccreditation ID:
TX0450051(979) 310-2304Phone Number:Dennis ZbranekContact Name:
Approval Date: 04/06/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 04/06/2023
Hanna HI98129150.1pH 04/06/2023
Monday, August 2, 2021 Page 85 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1700152
Valid UntilInstrumentMethodAnalyte
CORINTHIAN POINT MUD 2NAAccreditation ID:
TX1700152(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL2050079
Valid UntilInstrumentMethodAnalyte
CORPUS CHRISTI LIQUEFACTIONNAAccreditation ID:
TX2050079(361) 977-1374Phone Number:Leia WilburnContact Name:
Approval Date: 05/29/2019
Mettler Toledo Seven ExcellenceD1293-12pH 05/29/2022
Bulb Thermometer2550Temperature 05/29/2022
Lab ID: AL1780017
Valid UntilInstrumentMethodAnalyte
CORPUS CHRISTI NAVAL AIR STATION NAAccreditation ID:
TX1780017(361) 961-2668Phone Number:Maximino AcunaContact Name:
Approval Date: 11/13/2018
HACH SL10004500H-BpH 11/13/2021
Fisher Scientific XL 150 Benchtop150.1pH 11/13/2021
HACH SL10002550Temperature 11/13/2021
Fisher Scientific XL 150 Benchtop2550Temperature 11/13/2021
Lab ID: AL0200707
Valid UntilInstrumentMethodAnalyte
COUNTRY CROSSROADS MHPNAAccreditation ID:
TX0200707(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 08/01/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 08/01/2022
Lab ID: AL1840123
Valid UntilInstrumentMethodAnalyte
COWTOWN R V PARKNAAccreditation ID:
TX1840123(817) 688-3632Phone Number:Jayne ColburnContact Name:
Approval Date: 12/16/2019
Hach Colorimeter II4500CL-GFree Chlorine 12/16/2022
Lab ID: ALTP6307
Valid UntilInstrumentMethodAnalyte
CREEK ESTATES SOUTH WTPNAAccreditation ID:
TX1011647(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 02/25/2019
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/25/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/25/2022
Lab ID: AL1630029
Valid UntilInstrumentMethodAnalyte
CREEKWOOD RANCHES WSCNAAccreditation ID:
TX1630029(210) 287-6473Phone Number:Phillip E. WrightContact Name:
Approval Date: 11/07/2018
Hach Pocket Colorimeter II4500CL-GFree Chlorine 11/07/2021
Monday, August 2, 2021 Page 86 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14838
Valid UntilInstrumentMethodAnalyte
CROSBY MUD SWTPNAAccreditation ID:
TX1010118(281) 900-7190Phone Number:Chris WallaceContact Name:
Approval Date: 08/29/2019
Titration2320BAlkalinity 08/29/2022
DR9004500CL-GFree Chlorine 08/29/2022
HQ411d/probe PHC201150.1pH 08/29/2022
HQ411d/probe PHC2012550Temperature 08/29/2022
Eastex Environmental LabContract LabTOC 08/29/2022
DR9004500CL-GTotal Chlorine 08/29/2022
2100Q180.1Turbidity 08/29/2022
Lab ID: ALTP19635
Valid UntilInstrumentMethodAnalyte
CRWA HAYS CALDWELL WTPNAAccreditation ID:
TX0280024(512) 805-2802Phone Number:Michael AllmanContact Name:
Approval Date: 01/22/2021
Hach Digital Titrator 16900, Method 8203
2320BAlkalinity 01/22/2024
Hach 19300 Amperometric Titrator4500CLO2-EChlorine Dioxide 01/22/2024
Hach 19300 Amperometric Titrator4500CLO2-EChlorite 01/22/2024
Hach PCII Colorimeter (LH, MH, HR), CL17
4500CL-GFree Chlorine 01/22/2024
Hach Sension pH3, EC310150.1pH 01/22/2024
Hach Sension pH3, EC3102550Temperature 01/22/2024
GBRA Regional LaboratoryContract LabTOC 01/22/2024
Hach PCII Colorimeter (LH, MH, HR), CL17
4500CL-GTotal Chlorine 01/22/2024
Hach TU5200, TU5400scHACH 10258Turbidity 01/22/2024
Monday, August 2, 2021 Page 87 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP19683
Valid UntilInstrumentMethodAnalyte
CRWA LAKE DUNLAP WTPNAAccreditation ID:
TX0940091(830) 358-9314Phone Number:Clarissa BinkContact Name:
Approval Date: 12/10/2020
Hach Digital Titrator 16900012320BAlkalinity 12/10/2023
Hach HQ411d pH/mV2320BAlkalinity 12/10/2023
Hach 19300 Amperometric Titrator4500CLO2-EChlorine Dioxide 12/10/2023
GBRA Regional LaboratoryContract LabChlorite 12/10/2023
CL174500CL-GFree Chlorine 12/10/2023
Pocket Colorimeter II Chlorine Mid-Range/High Range
4500CL-GFree Chlorine 12/10/2023
CL17sc4500CL-GFree Chlorine 12/10/2023
DR300 Low Range/High Range4500CL-GFree Chlorine 12/10/2023
Hach HQ411d pH/mV Probe: IntelliCAL PHC301
150.1pH 12/10/2023
DPD1P1/pHD Digital Differential pH Sensor
150.1pH 12/10/2023
Hach 19300 Amperometric Titrator4500CLO2-EPOE Chlorite 12/10/2023
Hach HQ411d pH/mV Probe: IntelliCAL PHC301
2550Temperature 12/10/2023
GBRA Regional LaboratoryContract LabTOC 12/10/2023
Hach 5400scHACH 10258Turbidity 12/10/2023
Hach TU5300scHACH 10258Turbidity 12/10/2023
Hach TU5200HACH 10258Turbidity 12/10/2023
Lab ID: ALTP00001
Valid UntilInstrumentMethodAnalyte
CRWA WELLS RANCH WTPNAAccreditation ID:
TX0940096(830) 386-0619Phone Number:Michael SaldanaContact Name:
Approval Date: 12/10/2020
Hach Digital Titrator 169002320BAlkalinity 12/10/2023
Siemens Reagent Free Continuous4500CL-GFree Chlorine 12/10/2023
Hach HQ440D150.1pH 12/10/2023
Hach HQ440D2550Temperature 12/10/2023
TU5200, TU5400scHACH 10258Turbidity 12/10/2023
Lab ID: AL0940015
Valid UntilInstrumentMethodAnalyte
CRYSTAL CLEAR SUDNAAccreditation ID:
TX0940015(512) 214-1800Phone Number:Cayton GermanyContact Name:
Approval Date: 07/10/2019
Pocket Colorimeter II4500CL-GFree Chlorine 07/10/2022
Pocket Colorimeter II4500CL-GTotal Chlorine 07/10/2022
Monday, August 2, 2021 Page 88 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1650138
Valid UntilInstrumentMethodAnalyte
CULLIGAN WEST TEXASNAAccreditation ID:
TX1650138(432) 563-2690Phone Number:Steven HughinsContact Name:
Approval Date: 02/25/2020
Myron L 6 PFCE Ultrameter II (6266344)
4500H-BpH 02/25/2023
Myron L 6 PFCE Ultrameter II (6266344)
2550Temperature 02/25/2023
Lab ID: AL0002811
Valid UntilInstrumentMethodAnalyte
CURRO ENVIRONMENTALNAAccreditation ID:
(903) 279-9452Phone Number:Angel MedranoContact Name:
Approval Date: 06/15/2021
Hach Pocket Pro+ Tester150.1pH 06/15/2022
Hach Pocket Pro+ Tester2550Temperature 06/15/2022
Lab ID: AL1010919
Valid UntilInstrumentMethodAnalyte
CYPRESS FOREST PUDNAAccreditation ID:
TX1010919(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL1010432
Valid UntilInstrumentMethodAnalyte
CYPRESSWOOD UTILITY DISTRICTNAAccreditation ID:
TX1010432(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL0570082
Valid UntilInstrumentMethodAnalyte
D BAR B MOBILE HOME RANCHNAAccreditation ID:
TX0570082(817) 235-1366Phone Number:William L. TatumContact Name:
Approval Date: 09/16/2019
Hach Colorimeter II4500CL-GFree Chlorine 09/16/2022
Hach SesION+ pH1 Meter4500H-BpH 09/16/2022
Hach SesION+ pH1 Meter Thermistor
2550Temperature 09/16/2022
Hach Colorimeter II4500CL-GTotal Chlorine 09/16/2022
Lab ID: AL1070159
Valid UntilInstrumentMethodAnalyte
DAL HIGH WATER SYSTEMNAAccreditation ID:
TX1070159(512) 219-2294Phone Number:Timothy WillifordContact Name:
Approval Date: 03/19/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 03/19/2022
Lab ID: AL0560001
Valid UntilInstrumentMethodAnalyte
DALHART MUNICIPAL WATER SYSTEM NAAccreditation ID:
TX0560001(806) 244-0277Phone Number:Jonathan OlveraContact Name:
Approval Date: 02/28/2020
POCKET PRO + TESTER150.1pH 02/28/2023
POCKET PRO + TESTER2550Temperature 02/28/2023
Monday, August 2, 2021 Page 89 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0570136
Valid UntilInstrumentMethodAnalyte
DALLAS FORT WORTH AIRPORTNAAccreditation ID:
TX0570136(972) 973-4959Phone Number:Adam LeeperContact Name:
Approval Date: 10/11/2019
SL1000, DR900HACH 10260Total Chlorine 10/11/2022
Lab ID: AL0570004
Valid UntilInstrumentMethodAnalyte
DALLAS WATER UTILITYNAAccreditation ID:
TX0570004(214) 671-5067Phone Number:Alfonso MoruaContact Name:
Approval Date: 01/22/2021
HACH SL1000 Intellical Probe2510BConductivity 01/22/2024
HACH SL1000HACH 10260Free Chlorine 01/22/2024
HACH Pocket Colorimeter II4500CL-GFree Chlorine 01/22/2024
HACH SL1000 Intellical Probe4500H-BpH 01/22/2024
HACH Pocket Colorimeter II PO43-React
365.1Phosphate 01/22/2024
HACH SL1000 Intellical Probe2550Temperature 01/22/2024
HACH SL1000HACH 10260Total Chlorine 01/22/2024
HACH 2100Q180.1Turbidity 01/22/2024
Lab ID: TX287
Valid UntilInstrumentMethodAnalyte
DALLAS WU BACHMAN WTP LABT104704304Accreditation ID:
TX0570004(214) 670-6587Phone Number:Hermon AlameneContact Name:
Approval Date: 08/14/2018
Metrohm Auto-Titrator2320BAlkalinity 08/14/2021
Wet Chemistry (Manual)3500CA-DCalcium 08/14/2021
Orion VersaStar Meter and Probe2510BConductivity 08/14/2021
Hach DR28004500P-EOrthophosphate 08/14/2021
Hach HQ440d Meter4500H-BpH 08/14/2021
Hach DR28003120BSilica 08/14/2021
PolyScience Thermo Comparator2550Temperature 08/14/2021
GE 5310C Analyzer5310CTOC 08/14/2021
Metrohm Auto-Titrator, Hach CL174500CL-DTotal Chlorine 08/14/2021
Hach TU52002130BTurbidity 08/14/2021
Hach DR60005910BUV254 08/14/2021
Monday, August 2, 2021 Page 90 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: 48121
Valid UntilInstrumentMethodAnalyte
DALLAS WU EAST SIDE WTPT104704303Accreditation ID:
TX0570004(214) 670-0918Phone Number:Moon LimContact Name:
Approval Date: 06/28/2021
Metrohm Titrator2320BAlkalinity 06/28/2024
Manual Titration3500CA-DCalcium 06/28/2024
Orion Versa Star Meter2510BConductivity 06/28/2024
Severn Trent/Metrohm Titrator4500CL-DFree Chlorine 06/28/2024
Hach DR9004500P-EOrthophosphate 06/28/2024
Orion pH/ISE Meter4500H-BpH 06/28/2024
Perkin Elmer Lambda 354500SI-DSilica 06/28/2024
Fisher Brand Thermometer2550Temperature 06/28/2024
SuezTOCM5310C5310CTOC 06/28/2024
Severn Trent/Metrohm Titrators4500CL-DTotal Chlorine 06/28/2024
Hach TU5300HACH 10133Turbidity 06/28/2024
Hach 2100N2130BTurbidity 06/28/2024
Perkin Elmer Lambda 355910BUV254 06/28/2024
Lab ID: 48125
Valid UntilInstrumentMethodAnalyte
DALLAS WU ELM FORK WTPT104704302Accreditation ID:
TX0570004(214) 671-1419Phone Number:Juan AvalosContact Name:
Approval Date: 07/01/2021
MANUAL TITRATION2320BAlkalinity 07/01/2024
MANUAL TITRATION3500CA-DCalcium 07/01/2024
ORION VERSA STAR PRO2510BConductivity 07/01/2024
METROHM 855 AUTOMATIC TITRATOR
4500CL-DFree Chlorine 07/01/2024
HACH DR39004500P-EOrthophosphate 07/01/2024
ORION VERSA STAR PRO4500H-BpH 07/01/2024
HACH DR39004500SI02 DSilica 07/01/2024
GENERAL LAB THERMOMETER2550Temperature 07/01/2024
SUEZ M5310C5310CTOC 07/01/2024
METROHM 855 AUTOMATIC TITRATOR
4500CL-DTotal Chlorine 07/01/2024
HACH TU52002130BTurbidity 07/01/2024
THERMO SCIENTIFIC GENESYS 505910BUV254 07/01/2024
Lab ID: AL2270049
Valid UntilInstrumentMethodAnalyte
DEER CREEK WATERNAAccreditation ID:
TX2270049(830) 312-4600Phone Number:Chelsea HawkinsContact Name:
Approval Date: 04/16/2019
Hach SL1000, CL174500CL-GTotal Chlorine 04/16/2022
Monday, August 2, 2021 Page 91 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1010469
Valid UntilInstrumentMethodAnalyte
DELYNN WATER SYSTEMNAAccreditation ID:
TX1010469(281) 414-8287Phone Number:Rick SteadmanContact Name:
Approval Date: 01/17/2020
HACH md 1 #9532000150.1pH 01/17/2023
HACH md 1 #95320002550Temperature 01/17/2023
Lab ID: AL0200495
Valid UntilInstrumentMethodAnalyte
DIDOSNAAccreditation ID:
TX0200495(979) 239-7743Phone Number:Cruz MadrigalContact Name:
Approval Date: 05/10/2021
HACH Pocket Colorimeter II4500CL-GFree Chlorine 05/10/2024
Lab ID: AL2010013
Valid UntilInstrumentMethodAnalyte
DIRGIN WSCNAAccreditation ID:
TX2010013(903) 678-9066Phone Number:Sasha NavarretteContact Name:
Approval Date: 04/09/2020
Hach Model CN-66 Cat. No-2231014500CL-GFree Chlorine 04/09/2023
Lab ID: AL0200748
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL BRAZORIANAAccreditation ID:
TX0200748(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 09/25/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/25/2022
Lab ID: AL0200733
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL JONES CREEKNAAccreditation ID:
TX0200733(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 09/25/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/25/2022
Lab ID: AL1460177
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL ROMAYORNAAccreditation ID:
TX1460177(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 08/14/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 08/14/2023
Lab ID: AL0200742
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL ROSHARON ARCOLA NAAccreditation ID:
TX0200742(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 10/02/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 10/02/2022
Lab ID: AL1250042
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL SANDIANAAccreditation ID:
TX1250042(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 09/08/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/08/2023
Lab ID: AL1013637
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL STORE 09711NAAccreditation ID:
TX1013637(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 11/07/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 11/07/2022
Monday, August 2, 2021 Page 92 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0790563
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL STORE 16341NAAccreditation ID:
TX0790563(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 10/10/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 10/10/2022
Lab ID: AL2350083
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL STORE 16658NAAccreditation ID:
TX2350083(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 09/08/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/08/2023
Lab ID: AL1700887
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL STORE 19411NAAccreditation ID:
TX1700887(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 04/28/2021
HACH Pocket Colorimeter II/DR3004500CL-GFree Chlorine 04/28/2024
Lab ID: AL1013635
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL STORE 19496NAAccreditation ID:
TX1013635(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 04/06/2021
HACH Pocket Colorimeter II/DR3004500CL-GFree Chlorine 04/06/2024
Lab ID: AL2350084
Valid UntilInstrumentMethodAnalyte
DOLLAR GENERAL STORE 19529NAAccreditation ID:
TX2350084(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 08/14/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 08/14/2023
Lab ID: AL0200668
Valid UntilInstrumentMethodAnalyte
DOW CHEMICAL COMPANY - BM44 & BM59 NAAccreditation ID:
TX0200668(979) 238-3934Phone Number:Jason GarrardContact Name:
Approval Date: 02/03/2021
Hach Handheld Pocket Color II4500CL-GFree Chlorine 02/03/2024
Lab ID: AL0200543
Valid UntilInstrumentMethodAnalyte
DOW CHEMICAL COMPANY OYSTER CREEK NAAccreditation ID:
TX0200543(979) 238-4856Phone Number:Monte HurleyContact Name:
Approval Date: 01/03/2019
Titration2320BAlkalinity 01/03/2022
SL1000HACH 10260Free Chlorine 01/03/2022
HACH DR 28004500P-EOrthophosphate 01/03/2022
Thermo Model SB20150.1pH 01/03/2022
SL1000HACH 10260Total Chlorine 01/03/2022
Monday, August 2, 2021 Page 93 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0200027
Valid UntilInstrumentMethodAnalyte
DOW CHEMICAL COMPANY PLANT ANAAccreditation ID:
TX0200027(979) 238-3934Phone Number:Jason GarrardContact Name:
Approval Date: 02/01/2021
Titration2320BAlkalinity 02/01/2024
SL1000HACH 10260Free Chlorine 02/01/2024
Hach DR 39004500P-EOrthophosphate 02/01/2024
Benchtop Orion 320150.1pH 02/01/2024
Benchtop Orion 3202550Temperature 02/01/2024
SL1000HACH 10260Total Chlorine 02/01/2024
Lab ID: AL0200232
Valid UntilInstrumentMethodAnalyte
DOW CHEMICAL COMPANY PLANT BNAAccreditation ID:
TX0200232(979) 238-3934Phone Number:Jason GarrardContact Name:
Approval Date: 02/01/2021
Titration2320BAlkalinity 02/01/2024
SL1000HACH 10260Free Chlorine 02/01/2024
Hach DR 39004500P-EOrthophosphate 02/01/2024
Benchtop Orion 320150.1pH 02/01/2024
Benchtop Orion 3202550Temperature 02/01/2024
SL1000HACH 10260Total Chlorine 02/01/2024
Lab ID: AL1010650
Valid UntilInstrumentMethodAnalyte
DOW CHEMICAL LAPORTE SITENAAccreditation ID:
TX1010650281-228-8160Phone Number:Michael SnyderContact Name:
Approval Date: 11/12/2020
A&B LabsContract LabAlkalinity 11/12/2023
SGSContract LabAlkalinity 11/12/2023
SGSContract LabCalcium 11/12/2023
A&B LabsContract LabCalcium 11/12/2023
SGSContract LabConductivity 11/12/2023
A&B LabsContract LabConductivity 11/12/2023
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 11/12/2023
A&B LabsContract LabHardness 11/12/2023
Hach Pocket Colorimeter I365.1Orthophosphate 11/12/2023
Hanna 9125150.1pH 11/12/2023
Hanna 91252550Temperature 11/12/2023
Hach Pocket Colorimeter DR3004500CL-GTotal Chlorine 11/12/2023
Lab ID: AL0200528
Valid UntilInstrumentMethodAnalyte
DOW SALT DOME 1NAAccreditation ID:
TX0200528(979) 238-3384Phone Number:Billie BrannanContact Name:
Approval Date: 02/06/2019
Hach Hand-held Pocket Colorimeter II
4500CL-GFree Chlorine 02/06/2022
Hach Hand-held Pocket Colorimeter II
4500CL-GTotal Chlorine 02/06/2022
Monday, August 2, 2021 Page 94 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0200531
Valid UntilInstrumentMethodAnalyte
DOW TEXAS FREEPORT SALT DOME 4 NAAccreditation ID:
TX0200531(979) 238-3384Phone Number:Billie BrannanContact Name:
Approval Date: 09/15/2020
Hach Hand-Held Pocket Colorimeter II
4500CL-GFree Chlorine 09/15/2023
Hach Pocket Pro150.1pH 09/15/2023
Hach Pocket Pro2550Temperature 09/15/2023
Hach Hand-Held Pocket Colorimeter II
4500CL-GTotal Chlorine 09/15/2023
Lab ID: AL0200534
Valid UntilInstrumentMethodAnalyte
DOW TEXAS FREEPORT SALT DOME 8 NAAccreditation ID:
TX0200534(979) 238-3384Phone Number:Billie BrannanContact Name:
Approval Date: 02/06/2019
Hach Hand-held Pocket Colorimeter II
4500CL-GFree Chlorine 02/06/2022
Hach Hand-held Pocket Colorimeter II
4500CL-GTotal Chlorine 02/06/2022
Lab ID: AL0200535
Valid UntilInstrumentMethodAnalyte
DOW TEXAS FREEPORT SALT DOME 9 NAAccreditation ID:
TX0200535(979) 238-3384Phone Number:Billie BrannanContact Name:
Approval Date: 02/06/2019
Hach Hand-held Pocket Colorimeter II
4500CL-GFree Chlorine 02/06/2022
Hach Hand-held Pocket Colorimeter II
4500CL-GTotal Chlorine 02/06/2022
Lab ID: AL0200750
Valid UntilInstrumentMethodAnalyte
DOW TEXAS OPERATIONS FREEPORT BM 62 NAAccreditation ID:
TX0200750(979) 238-3384Phone Number:John Swango/Billie BrannaContact Name:
Approval Date: 12/17/2019
HACH Handheld Pocket 114500CL-GFree Chlorine 12/17/2022
Benchtop Orion 320150.1pH 12/17/2022
Benchtop Orion 3202550Temperature 12/17/2022
Lab ID: AL1000075
Valid UntilInstrumentMethodAnalyte
DRAGON PRODUCTS - SILSBEE SOUTH NAAccreditation ID:
TX1000075(409) 838-6261Phone Number:Matthew GilbyContact Name:
Approval Date: 09/24/2020
Hach - HQ11d150.1pH 09/24/2023
Hach - HQ11d2550Temperature 09/24/2023
Lab ID: AL2270058
Valid UntilInstrumentMethodAnalyte
DRAPER ESTATES WATER SYSTEMNAAccreditation ID:
TX2270058(512) 415-1767Phone Number:Harold NelsonContact Name:
Approval Date: 02/28/2020
OAKTON PH 1504500H-BpH 02/28/2023
OAKTON PH 1502550Temperature 02/28/2023
Monday, August 2, 2021 Page 95 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1050200
Valid UntilInstrumentMethodAnalyte
DRIFTWOOD RECOVERYNAAccreditation ID:
TX1050200(512) 433-0732Phone Number:Rebecca MlenarContact Name:
Approval Date: 10/01/2020
Extech ExStik Waterproof pH Meter
150.1pH 10/01/2023
Extech ExStik Waterproof pH Meter
2550Temperature 10/01/2023
Lab ID: AL0200355
Valid UntilInstrumentMethodAnalyte
DSM NUTRITIONAL PRODUCTSNAAccreditation ID:
TX0200355(979) 373-5012Phone Number:Christina Orbase-WhiteContact Name:
Approval Date: 10/16/2019
Beckman Model 340150.1pH 10/16/2022
H-B Enviro-Safe Liquid-in-Glass2550Temperature 10/16/2022
Lab ID: AL1840100
Valid UntilInstrumentMethodAnalyte
DU CHANE CHATEAUXNAAccreditation ID:
TX1840100(817) 992-4051Phone Number:Ryan MichelettiContact Name:
Approval Date: 01/02/2020
Hach Pocket Pro4500H-BpH 01/02/2023
Hach Pocket Pro2550Temperature 01/02/2023
Lab ID: AL1810114
Valid UntilInstrumentMethodAnalyte
DUPONT SABINE RIVER WORKSNAAccreditation ID:
TX1810114 (409) 886-9329Phone Number:Marie Allison GrossContact Name:
Approval Date: 08/14/2018
2320BAlkalinity 08/14/2021
Hach AutoCAT 90004500CLO2-EChlorine Dioxide 08/14/2021
Hach AutoCAT 90004500CLO2-EChlorite (at EP) 08/14/2021
Hach Pocket4500CL-DFree Chlorine 08/14/2021
Orion Model STAR A324150.1pH 08/14/2021
PMROSEMONT 3144TT Thermocouple
2550Temperature 08/14/2021
OI analytical aurora 10305310BTOC 08/14/2021
Hach 28002130BTurbidity 08/14/2021
Lab ID: AL0460214
Valid UntilInstrumentMethodAnalyte
EAGLES PEAK RANCH WSCNAAccreditation ID:
TX0460214(713) 594-1064Phone Number:Richard McFarlandContact Name:
Approval Date: 04/14/2021
Oakton pH 6+150.3pH 04/14/2024
Oakton pH 6+2550Temperature 04/14/2024
Monday, August 2, 2021 Page 96 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0710187
Valid UntilInstrumentMethodAnalyte
EAST BIGGS WATER SYSTEMNAAccreditation ID:
TX0710187(915) 478-8119Phone Number:David WillContact Name:
Approval Date: 01/13/2021
Hach Colorimeter II4500CL-GFree Chlorine 01/13/2024
Hach Pocket Pro4500H-BpH 01/13/2024
Hach Pocket Pro2550Temperature 01/13/2024
Lab ID: AL1550023
Valid UntilInstrumentMethodAnalyte
EAST CRAWFORD WSCNAAccreditation ID:
TX1550023(254) 723-1834Phone Number:Charles D Brandon JrContact Name:
Approval Date: 03/24/2020
Hach Pocket Colorimeter4500CL-GFree Chlorine 03/24/2023
Lab ID: ALTP21391
Valid UntilInstrumentMethodAnalyte
EAST RIO HONDO MARTHA SIMPSON WTP NAAccreditation ID:
TX0310096(956) 247-7744Phone Number:Eric HaydonContact Name:
Approval Date: 1/15/2019
Class A Glass Buret Titration2320BAlkalinity 01/15/2022
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 01/15/2022
Hach Amperometric Titrator4500CLO2-EChlorite (at EP) 01/15/2022
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/15/2022
Hach HQ40d pH Meter4500H-BpH 01/15/2022
Hach HQ40d pH Meter2550Temperature 01/15/2022
Pollution Control ServicesContract LabTOC 01/15/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/15/2022
Hach 2100N Benchtop Turbidimeter
180.1Turbidity 01/15/2022
Pollution Control ServicesContract LabUV254 01/15/2022
Lab ID: ALTP14758
Valid UntilInstrumentMethodAnalyte
EAST RIO HONDO NELSON RD WTPNAAccreditation ID:
TX0310096(956) 247-7744Phone Number:Eric HaydonContact Name:
Approval Date: 1/15/2019
Class A Glass Buret Titration2320BAlkalinity 01/15/2022
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 01/15/2022
Hach Amperometric Titrator4500CLO2-EChlorite (at EP) 01/15/2022
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/15/2022
Hach HQ40d pH Meter4500H-BpH 01/15/2022
Hach HQ40d pH Meter2550Temperature 01/15/2022
Pollution Control ServicesContract LabTOC 01/15/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/15/2022
Hach 2100N Benchtop Turbidimeter
180.1Turbidity 01/15/2022
Pollution Control ServicesContract LabUV254 01/15/2022
Monday, August 2, 2021 Page 97 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP410642
Valid UntilInstrumentMethodAnalyte
EAST RIO HONDO WSC ARROYO CITYNAAccreditation ID:
TX0310031(956) 247-7744Phone Number:Eric HaydonContact Name:
Approval Date: 1/15/2019
Hach Pocket II Colorimeter4500CL-GFree Chlorine 01/15/2022
Hach Pocket II Colorimeter4500CL-GTotal Chlorine 01/15/2022
Lab ID: AL0840019
Valid UntilInstrumentMethodAnalyte
EASTMAN CHEMICAL TEXAS CITY OPERATIONS NAAccreditation ID:
TX0840019(409) 942-3962Phone Number:Rachel McCamyContact Name:
Approval Date: 09/18/2020
Hach Pocket Colorimeter II (Mid Range)
4500CL-GFree Chlorine 09/18/2023
Hach DR 27004500CL-GTotal Chlorine 09/18/2023
Lab ID: AL2020013
Valid UntilInstrumentMethodAnalyte
EL CAMINO BAY WATER SYSTEMNAAccreditation ID:
TX2020013(936) 201-9036Phone Number:Larry AncelotContact Name:
Approval Date: 04/25/2019
TITRATION2320BAlkalinity 04/25/2022
HACH HQ11D150.1pH 04/25/2022
HACH HQ11D2550Temperature 04/25/2022
HACH POCKET CH. 24500CL-GTotal Chlorine 04/25/2022
HACH 2100 P180.1Turbidity 04/25/2022
Lab ID: AL1010471
Valid UntilInstrumentMethodAnalyte
EL DORADO UTILITY DISTRICTNAAccreditation ID:
TX1010471(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL0710019
Valid UntilInstrumentMethodAnalyte
EL PASO COUNTY TORNILLO WIDNAAccreditation ID:
TX0710019(915) 539-0117Phone Number:Robert HoodContact Name:
Approval Date: 03/22/2019
International Water Quality Laboratory
Contract LabAlkalinity 03/22/2022
Lower Colorado River AuthorityContract LabCalcium 03/22/2022
Lower Colorado River AuthorityContract LabConductivity 03/22/2022
Hach Pocket Colorimeter II4500CL-GFree Chlorine 03/22/2022
Hach Pocket Pro+150.3pH 03/22/2022
Lower Colorado River AuthorityContract LabPhosphate 03/22/2022
Ana-Lab CorporationContract LabSilica 03/22/2022
Lower Colorado River AuthorityContract LabTOC 03/22/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 03/22/2022
International Water Quality Laboratory
Contract LabTurbidity 03/22/2022
Ana-Lab CorporationContract LabUV254 03/22/2022
Monday, August 2, 2021 Page 98 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0710065
Valid UntilInstrumentMethodAnalyte
EL PASO ELECTRIC NEWMAN PLANTNAAccreditation ID:
TX0710065(915) 478-6009Phone Number:Teresa SosaContact Name:
Approval Date: 08/17/2020
LCRAContract LabAlkalinity 08/17/2023
LCRAContract LabCalcium 08/17/2023
Myron L Company Ultrameter II 6P2510BConductivity 08/17/2023
Hach Colorimeter Pocket II4500CL-GFree Chlorine 08/17/2023
LCRAContract LabHardness 08/17/2023
LCRAContract LabOrthophosphate 08/17/2023
Myron L Company Ultrameter II 6P150.1pH 08/17/2023
Myron L Company Ultrameter II 6P2550Temperature 08/17/2023
LCRAContract LabTurbidity 08/17/2023
Lab ID: ALTP22092
Valid UntilInstrumentMethodAnalyte
EL PASO WATER UTILITIES PUBLIC SERVICE B - E.J. UMBENHAUER SWTP NAAccreditation ID:
TX0710002(915) 594-5402Phone Number:Ruben MontesContact Name:
Approval Date: 10/03/2019
Palintest ChlordioX PlusCHLORDIOX PLUSChlorine Dioxide 10/03/2022
Palintest ChlordioX PlusCHLORDIOX PLUSPOE Chlorite 10/03/2022
Lab ID: ALTP14801
Valid UntilInstrumentMethodAnalyte
EL PASO WATER UTILITIES PUBLIC SERVICE B - JONATHAN ROGERS NAAccreditation ID:
TX0710002(915) 594-5752Phone Number:Michael ParkerContact Name:
Approval Date: 06/07/2019
Palintest ChlordioX PlusCHLORDIOX PLUSChlorine Dioxide 06/07/2022
Palintest ChlordioX PlusCHLORDIOX PLUSPOE Chlorite 06/07/2022
Lab ID: ALTP14800
Valid UntilInstrumentMethodAnalyte
EL PASO WATER UTILITIES PUBLIC SERVICE B - W.E. ROBERTSON SWTP NAAccreditation ID:
TX0710002(915) 594-5402Phone Number:Ruben MontesContact Name:
Approval Date: 10/03/2019
Palintest ChlordioX PlusCHLORDIOX PLUSChlorine Dioxide 10/03/2022
Palintest ChlordioX PlusCHLORDIOX PLUSPOE Chlorite 10/03/2022
Lab ID: AL0920019
Valid UntilInstrumentMethodAnalyte
ELDERVILLE WSCNAAccreditation ID:
TX0920019(903) 212-2299Phone Number:Dean CarrellContact Name:
Approval Date: 04/13/2021
HACH SL1000 PPAHACH 10260Free Chlorine 04/13/2024
pHC10101/HACH SL1000 PPA150.1pH 04/13/2024
pHC10101/HACH SL1000 PPA2550Temperature 04/13/2024
HACH SL1000 PPAHACH 10260Total Chlorine 04/13/2024
Monday, August 2, 2021 Page 99 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15109
Valid UntilInstrumentMethodAnalyte
EMMA LONG METRO PARK SWTPNAAccreditation ID:
TX2270171(512) 972-0520Phone Number:Gregory SundahlContact Name:
Approval Date: 07/01/2019
Hach AL-AP2320BAlkalinity 07/01/2022
Hach CL-17 & Pocket Colorimeter4500CL-GFree Chlorine 07/01/2022
ThermoOrion Model 2304500H-BpH 07/01/2022
Mercury Thermom & Orion ATC Probe
2550Temperature 07/01/2022
Hach 1720C & Hach 2100P (benchtop)
180.1Turbidity 07/01/2022
Lab ID: AL1010687
Valid UntilInstrumentMethodAnalyte
ENCANTO REAL UTILITY DISTRICTNAAccreditation ID:
TX1010687(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1250041
Valid UntilInstrumentMethodAnalyte
ENVIGO GLOBAL SERVICESNAAccreditation ID:
TX1250041(361) 815-0669Phone Number:William BrownContact Name:
Approval Date: 10/27/2020
Hach DR3004500CL-GFree Chlorine 10/27/2023
Lab ID: AL0720039
Valid UntilInstrumentMethodAnalyte
EQUIBRAND STEPHENVILLE PWSNAAccreditation ID:
TX0720039(254) 485-0973Phone Number:Jim Bob BerryContact Name:
Approval Date: 12/06/2018
Oakton pH 6+4500H-BpH 12/06/2021
Oakton pH 6+2550Temperature 12/06/2021
Lab ID: AL1370034
Valid UntilInstrumentMethodAnalyte
ESCONDIDO CREEK WATER SYSTEMNAAccreditation ID:
TX1370034(361) 296-4222Phone Number:William SchonefeldContact Name:
Approval Date: 09/25/2019
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 09/25/2022
Lab ID: AL0037720
Valid UntilInstrumentMethodAnalyte
ESSCO ENVIRONMENTAL INCNAAccreditation ID:
(915) 533-1102Phone Number:Alexa M. CourouxContact Name:
Approval Date: 10/09/2020
HACH Pocket Pro + Tester150.1pH 10/09/2021
HACH Pocket Pro + Tester150.1pH 10/09/2021
HACH Pocket Pro + Tester2550Temperature 10/09/2021
HACH Pocket Pro + Tester2550Temperature 10/09/2021
Monday, August 2, 2021 Page 100 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0037720
Valid UntilInstrumentMethodAnalyte
ESSCO Environmental, Inc.NAAccreditation ID:
(915) 533-1102Phone Number:Alexa M. CourouxContact Name:
Approval Date: 10/09/2020
HACH Pocket Pro + Tester150.1pH 09/29/2021
HACH Pocket Pro + Tester150.1pH 09/29/2021
HACH Pocket Pro + Tester2550Temperature 09/29/2021
HACH Pocket Pro + Tester2550Temperature 09/29/2021
Lab ID: AL0300005
Valid UntilInstrumentMethodAnalyte
EULA WSCNAAccreditation ID:
TX0300005(325) 529-3555Phone Number:Rickey CowleyContact Name:
Approval Date: 10/07/2019
Hach Pocket Colorimeter4500CL-GFree Chlorine 10/07/2022
Hach Pocket Colorimeter4500CL-GTotal Chlorine 10/07/2022
Lab ID: AL0020011
Valid UntilInstrumentMethodAnalyte
EXXONMOBIL FULLERTONNAAccreditation ID:
TX0020011(432) 563-2690Phone Number:Steven M HughinsContact Name:
Approval Date: 01/16/2019
Myron L Ultrameter II 6PFCe4500H-BpH 01/16/2022
Lab ID: AL0020012
Valid UntilInstrumentMethodAnalyte
EXXONMOBIL PRODUCTION COMPANY MEANS FIEL NAAccreditation ID:
TX0020012(432) 563-2690Phone Number:Steven M HughinsContact Name:
Approval Date: 01/16/2019
Myron Ultrameter II 6PFCe4500H-BpH 01/16/2022
Lab ID: AL0790555
Valid UntilInstrumentMethodAnalyte
FAMILY LIFE ASSEMBLY OF GODNAAccreditation ID:
TX0790555(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 01/13/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 01/13/2023
Lab ID: AL0750034
Valid UntilInstrumentMethodAnalyte
FAYETTE WSC EASTNAAccreditation ID:
TX0750034(979) 968-6475Phone Number:James RebecekContact Name:
Approval Date: 07/03/2020
CL 2 Colorimeter4500CL-GFree Chlorine 07/03/2023
Lab ID: AL0750022
Valid UntilInstrumentMethodAnalyte
FAYETTE WSC WESTNAAccreditation ID:
TX0750022(979) 968-6475Phone Number:James RebecekContact Name:
Approval Date: 09/17/2020
CL 2 Colorimeter4500CL-GFree Chlorine 07/03/2023
Oakton pH Testr 304500H-BpH 09/17/2023
Oakton pH Testr 302550Temperature 09/17/2023
Monday, August 2, 2021 Page 101 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2460128
Valid UntilInstrumentMethodAnalyte
FERN BLUFF MUDNAAccreditation ID:
TX2460128(512) 238-0606Phone Number:Hector E. AlanisContact Name:
Approval Date: 07/16/2019
Hach SL-1000 w/probe2510BConductivity 07/16/2022
Hach SL-10004500CL-GFree Chlorine 07/16/2022
Hach SL-1000 w/probe4500H-BpH 07/16/2022
Hach SL-1000 w/probe2550Temperature 07/16/2022
Hach SL-10004500CL-GTotal Chlorine 07/16/2022
Lab ID: AL0080030
Valid UntilInstrumentMethodAnalyte
FIVE STAR PROPERTIES SEALYNAAccreditation ID:
TX0080030(979) 257-7077Phone Number:Dennis ZurekContact Name:
Approval Date: 12/18/2018
HACH, HQ11d pH Meter4500H-BpH 12/18/2021
HACH, HQ11d pH Meter2550Temperature 12/18/2021
Lab ID: AL0610119
Valid UntilInstrumentMethodAnalyte
FOREST HILL TWO WSCNAAccreditation ID:
TX0610119(940) 453-8252Phone Number:Todd MadisonContact Name:
Approval Date: 08/29/2019
Hach Pocket Colorimeter II LR-HR4500CL-GFree Chlorine 08/29/2022
Lab ID: AL1011252
Valid UntilInstrumentMethodAnalyte
FOREST HILLS MUDNAAccreditation ID:
TX1011252(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL0790474
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY FWSD 1NAAccreditation ID:
TX0790474(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL0790440
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY FWSD 2NAAccreditation ID:
TX0790440(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL0790366
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY MUD 118NAAccreditation ID:
TX0790366(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/06/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/06/2023
Monday, August 2, 2021 Page 102 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0790566
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY MUD 132NAAccreditation ID:
TX0790566(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL0790429
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY MUD 142NAAccreditation ID:
TX0790429(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL0790502
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY MUD 145 RIO VISTA NAAccreditation ID:
TX0790502(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 07/27/2020
Hach Pocket Colorimeter / DR3004500CL-GTotal Chlorine 07/27/2023
Lab ID: AL0790435
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY MUD 146NAAccreditation ID:
TX0790435(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL0790478
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY MUD 185NAAccreditation ID:
TX0790478(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL0790543
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY MUD 194NAAccreditation ID:
TX0790543(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL0790548
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY MUD 206 VICTORIAN GARDE NAAccreditation ID:
TX0790548(832) 490-1507Phone Number:Michael ThornhillContact Name:
Approval Date: 08/24/2020
Hach Pocket Colorimeter4500CL-GFree Chlorine 08/24/2023
Hach Pocket Colorimeter4500CL-GTotal Chlorine 08/24/2023
Lab ID: AL0790130
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY MUD 25NAAccreditation ID:
TX0790130(281) 910-2904Phone Number:Stephen LammersContact Name:
Approval Date: 04/01/2020
Hach 5870000 Pocket Colorimeter II
4500CL-GFree Chlorine 04/01/2023
Monday, August 2, 2021 Page 103 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0790004
Valid UntilInstrumentMethodAnalyte
FORT BEND COUNTY WCID 2NAAccreditation ID:
TX0790004(309) 349-2400Phone Number:Randy LawsonContact Name:
Approval Date: 04/14/2021
Hach Digital Titrator2320BAlkalinity 04/14/2024
Hach Digital Titrator3500-CA BCalcium 04/14/2024
Hach Titra AT 10004500CLO2-EChlorine Dioxide 04/14/2024
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 04/14/2024
9187sc CLO2 Analyzer (Online)4500CLO2-CChlorine Dioxide 04/14/2024
Hach HQd Conductivity Probe2510BConductivity 04/14/2024
Hach Pocket Colorimeter II4500CL-DFree Chlorine 04/14/2024
North Water District LaboratoryContract LabOrthophosphate 04/14/2024
Hach (Online) pH Sensor PEEK4500H-BpH 04/14/2024
Hach HQd pH Meter4500H-BpH 04/14/2024
Hach Amperometric Titrator4500CLO2-EPOE Chlorite 04/14/2024
Hach Titra AT 10004500CLO2-EPOE Chlorite 04/14/2024
North Water District LaboratoryContract LabSilica 04/14/2024
Hach HQd Temperature Probe2550Temperature 04/14/2024
Eurofins/Eaton AnalyticalContract LabTOC 04/14/2024
CL 17 CL2 Total Analyzer4500CL-GTotal Chlorine 04/14/2024
Hach Pocket Colorimeter II4500CL-DTotal Chlorine 04/14/2024
Hach Filter Trak 660sc (Online)HACH 10133Turbidity 04/14/2024
Hach 2100 AN2130BTurbidity 04/14/2024
Hach 1720 E (Online)2130BTurbidity 04/14/2024
Hach DR 6005910BUV254 04/14/2024
Lab ID: AL0790472
Valid UntilInstrumentMethodAnalyte
FORT BEND MUD 143 WATER VIEW ESTA NAAccreditation ID:
TX0790472(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL0710078
Valid UntilInstrumentMethodAnalyte
FORT BLISS BIGGS ARMY AIRFIELDNAAccreditation ID:
TX0710078(915) 478-8119Phone Number:David WillContact Name:
Approval Date: 01/13/2021
Hach Colorimeter II4500CL-GFree Chlorine 01/13/2024
Hach Pocket Pro4500H-BpH 01/13/2024
Hach Pocket Pro2550Temperature 01/13/2024
Monday, August 2, 2021 Page 104 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0710020
Valid UntilInstrumentMethodAnalyte
FORT BLISS MAIN POST AREANAAccreditation ID:
TX0710020(915) 478-8119Phone Number:David WillContact Name:
Approval Date: 01/13/2021
Hach Colorimeter II4500CL-GFree Chlorine 01/13/2024
Hach Pocket Pro4500H-BpH 01/13/2024
Hach Pocket Pro2550Temperature 01/13/2024
Lab ID: AL0790554
Valid UntilInstrumentMethodAnalyte
FOSTER CREEK VETERINARY HOSPITAL NAAccreditation ID:
TX0790554(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: ALTP8900
Valid UntilInstrumentMethodAnalyte
FOWLERTON WSC WTPNAAccreditation ID:
TX1420006(830) 480-8805Phone Number:Benjamin TangumaContact Name:
Approval Date: 02/20/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 02/20/2023
Lab ID: AL1930023
Valid UntilInstrumentMethodAnalyte
FRIO CANON WATERNAAccreditation ID:
TX1930023(830) 998-5798Phone Number:Doug AlfordContact Name:
Approval Date: 10/17/2019
HACH Pocket Pro 9532000150.1pH 10/17/2022
HACH Pocket Pro 95320002550Temperature 10/17/2022
Lab ID: AL1260092
Valid UntilInstrumentMethodAnalyte
GARDEN ACRESNAAccreditation ID:
TX1260092(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 03/22/2019
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 03/22/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 03/22/2022
Lab ID: ALTP14735
Valid UntilInstrumentMethodAnalyte
GBRA LULING PLANT SWTPNAAccreditation ID:
TX0280018(830) 875-2132Phone Number:Joseph A. DowneyContact Name:
Approval Date: 03/03/2021
Hach Sension 4 Titration2320BAlkalinity 03/03/2024
Texas Department of Health, LCRA Lab
Contract LabCalcium 03/03/2024
Texas Department of Health, LCRA Lab
Contract LabHardness 03/03/2024
Hach Sension 44500H-BpH 03/03/2024
Mercury Thermometer2550Temperature 03/03/2024
GBRA Regional LaboratoryContract LabTOC 03/03/2024
Hach CL17 Analyzer4500CL-DTotal Chlorine 03/03/2024
Hach 2100N Turbidimeter2130BTurbidity 03/03/2024
Monday, August 2, 2021 Page 105 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14738
Valid UntilInstrumentMethodAnalyte
GBRA PORT LAVACA WTPNAAccreditation ID:
TX0290005(361) 552-9751Phone Number:Ronnie ParenicaContact Name:
Approval Date: 06/16/2020
Titration2320BAlkalinity 06/16/2023
Hach Amperometric Titrator 193004500CL-DFree Chlorine 06/16/2023
SensION24500H-BpH 06/16/2023
Ertco2550Temperature 06/16/2023
GBRA Regional LaboratoryContract LabTOC 06/16/2023
Hach Amperometric Titrator 193004500CL-DTotal Chlorine 06/16/2023
Hach 2100 N2130BTurbidity 06/16/2023
Hach DR 60005910BUV254 06/16/2023
Lab ID: AL0460239
Valid UntilInstrumentMethodAnalyte
GBRA WESTERN CANYON WATER SUPPLY NAAccreditation ID:
TX0460239(830) 885-2639Phone Number:Hunter DuncanContact Name:
Approval Date: 09/17/2019
Titration With Color IndicatorD1067-02BAlkalinity 09/17/2022
Jencons Digititrate With Color Indicator
3500-CA BCalcium 09/17/2022
Sension 52510BConductivity 09/17/2022
Hach Pocket Colorimeter II4500CL-GFree Chlorine 09/17/2022
Orion 3 Star150.1pH 09/17/2022
Orion 3 Star2550Temperature 09/17/2022
TU 5200HACH 10133Turbidity 09/17/2022
Hach DR5000415.3UV254 09/17/2022
Lab ID: AL1013387
Valid UntilInstrumentMethodAnalyte
GENERATION PARK MANAGEMENT DISTRICT NAAccreditation ID:
TX1013387(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/03/2023
Lab ID: AL2300005
Valid UntilInstrumentMethodAnalyte
GLENWOOD WSCNAAccreditation ID:
TX2300005(903) 738-9292Phone Number:Bobby JenkinsContact Name:
Approval Date: 06/29/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 06/29/2023
Lab ID: AL2020067
Valid UntilInstrumentMethodAnalyte
G-M WSCNAAccreditation ID:
TX2020067(409) 787-2755Phone Number:Vance HoyleContact Name:
Approval Date: 07/25/2019
Hach DR9004500CL-GFree Chlorine 07/25/2022
Hach Pocket Pro+150.1pH 07/25/2022
Hach Pocket Pro+2550Temperature 07/25/2022
Hach DR9004500CL-GTotal Chlorine 07/25/2022
Monday, August 2, 2021 Page 106 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2520008
Valid UntilInstrumentMethodAnalyte
GRAHAM EAST WSCNAAccreditation ID:
TX2520008(940) 549-0361Phone Number:Grady DouglessContact Name:
Approval Date: 03/02/2021
Hach DR 9004500CL-GFree Chlorine 03/02/2024
Hach DR 9004500CL-GTotal Chlorine 03/02/2024
Lab ID: AL1110131
Valid UntilInstrumentMethodAnalyte
GRANBURY MINENAAccreditation ID:
TX1110131(682) 500-4388Phone Number:Nate PetersonContact Name:
Approval Date: 10/26/2018
Hach Pocket Chlorometer II4500CL-DFree Chlorine 10/26/2021
Eutech pHTestr30150.1pH 10/26/2021
WGTC Spirit Thermometer 52542550Temperature 10/26/2021
Lab ID: AL0700063
Valid UntilInstrumentMethodAnalyte
GRANDE CASANAAccreditation ID:
TX0700063(817) 239-9419Phone Number:Buster BramallContact Name:
Approval Date: 01/25/2021
HACH Colorimeter II4500CL-GFree Chlorine 01/25/2024
Lab ID: AL0910131
Valid UntilInstrumentMethodAnalyte
GRANDPAPPY POINTNAAccreditation ID:
TX0910131(903) 786-4433Phone Number:Alan MooreContact Name:
Approval Date: 05/12/2020
LaMotte DC1200 Cl Li4500CL-GFree Chlorine 05/12/2023
Hach Sension+Ph1150.1pH 05/12/2023
Hach Sension+pH12550Temperature 05/12/2023
LaMotte DC1200 Cl Li4500CL-GTotal Chlorine 05/12/2023
Lab ID: AL1011839
Valid UntilInstrumentMethodAnalyte
GREEN TRAILS MUDNAAccreditation ID:
TX1011839(281) 637-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 07/14/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 07/14/2023
Lab ID: AL0940020
Valid UntilInstrumentMethodAnalyte
GREEN VALLEY SUDNAAccreditation ID:
TX0940020(210) 279-0362Phone Number:Kristerpher LombardContact Name:
Approval Date: 03/13/2019
HACH Sension+4500H-BpH 03/13/2022
HACH Sension+2550Temperature 03/13/2022
Lab ID: AL1650078
Valid UntilInstrumentMethodAnalyte
GREENWOOD WATER SYSTEMNAAccreditation ID:
TX1650078(806) 773-0022Phone Number:James Alan WallaceContact Name:
Approval Date: 09/20/2018
Pocket Pro+ Multi 2 Tester150.1pH 09/20/2021
Pocket Pro+ Multi 2 Tester2550Temperature 09/20/2021
Monday, August 2, 2021 Page 107 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14813
Valid UntilInstrumentMethodAnalyte
GULF COAST WATER AUTHORITY - THOMAS MACKEY WTP - BRAZOS NAAccreditation ID:
TX0840153(281) 967-1917Phone Number:Tony GarciaContact Name:
Approval Date: 06/04/2020
Titration M-4 Knick2320BAlkalinity 09/23/2022
Hach DR3900CHLORDIOX PLUSChlorine Dioxide 05/01/2022
Amperometric4500CLO2-CChlorine Dioxide 05/01/2022
PalintestCHLORDIOX PLUSChlorine Dioxide 09/23/2022
KemioCHLORDIOX PLUSChlorine Dioxide 06/04/2023
Hach SensION ECS2510BConductivity 09/23/2022
Hach Pocket Colorimeter4500CL-GFree Chlorine 05/01/2022
Hach DR39004500CL-GFree Chlorine 09/23/2022
M4-Knick4500H-BpH 09/23/2022
Dionex ICS- 2100300.0Phosphate 09/23/2022
Dionex ICS- 2100/Amperometric4500CLO2-EPOE Chlorite 05/01/2022
PalintestCHLORDIOX PLUSPOE Chlorite 09/23/2022
KemioCHLORDIOX PLUSPOE Chlorite 06/04/2023
Digital Thermometer2550Temperature 09/23/2022
Fusion UV/Persulfate5310CTOC 09/23/2022
Hach Pocket Colorimeter4500CL-GTotal Chlorine 05/01/2022
Hach DR39004500CL-GTotal Chlorine 09/23/2022
Hach TU52002130BTurbidity 09/23/2022
Spectrophotometric5910BUV254 09/23/2022
Lab ID: AL2390021
Valid UntilInstrumentMethodAnalyte
GUN & ROD ESTATESNAAccreditation ID:
TX2390021(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 06/28/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 06/28/2024
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 06/28/2024
Lab ID: ALTP2089
Valid UntilInstrumentMethodAnalyte
HACKBERRY CREEK SUBDIVISION WTP NAAccreditation ID:
TX0360100(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 05/06/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 05/06/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 05/06/2023
Lab ID: AL2270370
Valid UntilInstrumentMethodAnalyte
HAMILTON MARKETNAAccreditation ID:
TX2270370(512) 785-9801Phone Number:Cari HarringtonContact Name:
Approval Date: 12/28/2018
Oakton Meter4500H-BpH 12/28/2021
Oakton Meter2550Temperature 12/28/2021
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 12/28/2021
Monday, August 2, 2021 Page 108 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0790579
Valid UntilInstrumentMethodAnalyte
HARLEM PARK SPORTS FACILITIESNAAccreditation ID:
TX0790579(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 05/06/2021
Hach Pocket Colorimeter II/DR3004500CL-GFree Chlorine 05/06/2024
Lab ID: ALTP14745
Valid UntilInstrumentMethodAnalyte
HARLINGEN WATER WORKS DOWNTOWN WTP NAAccreditation ID:
TX0310002(956) 440-6531Phone Number:Art HernandezContact Name:
Approval Date: 12/17/2018
Titration2320BAlkalinity 12/17/2021
Thermo Scientific ORION 2 STAR4500H-BpH 12/17/2021
Thermo Scientific ORION 2 STAR2550Temperature 12/17/2021
Harlingen Water Works LabContract LabTOC 12/17/2021
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 12/17/2021
Hach 2100N2130BTurbidity 12/17/2021
Lab ID: ALTP14746
Valid UntilInstrumentMethodAnalyte
HARLINGEN WATER WORKS MF RUNNION WTP NAAccreditation ID:
TX0310002(956) 440-6531Phone Number:Art HernandezContact Name:
Approval Date: 05/01/2019
Manual Titration2320BAlkalinity 05/01/2022
Thermo Scientific ORION Star A1114500H-BpH 05/01/2022
Thermo Scientific ORION Star A1112550Temperature 05/01/2022
Harlingen Water Works LabContract LabTOC 05/01/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 05/01/2022
Hach TL23002130BTurbidity 05/01/2022
Lab ID: AL1010426
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 11NAAccreditation ID:
TX1010426(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1010774
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 120NAAccreditation ID:
TX1010774(713) 395-3100Phone Number:Gregory CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL1012229
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 127NAAccreditation ID:
TX1012229(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 07/27/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 07/27/2023
Lab ID: AL1012097
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 130NAAccreditation ID:
TX1012097(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 01/12/2021
Hach Pocket Colorimeter/DR3004500CL-GTotal Chlorine 01/12/2024
Monday, August 2, 2021 Page 109 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1011783
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 168NAAccreditation ID:
TX1011783(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL1011864
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 170NAAccreditation ID:
TX1011864(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL1013002
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 196NAAccreditation ID:
TX1013002(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/19/2023
Lab ID: AL1012145
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 211NAAccreditation ID:
TX1012145(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL1012812
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 215NAAccreditation ID:
TX1012812(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 07/13/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 07/13/2023
Lab ID: AL1013321
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 220NAAccreditation ID:
TX1013321(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/19/2023
Lab ID: AL1012498
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 233NAAccreditation ID:
TX1012498(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/03/2023
Lab ID: AL1013135
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 249NAAccreditation ID:
TX1013135(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/03/2023
Lab ID: AL1013063
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 280NAAccreditation ID:
TX1013063(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Monday, August 2, 2021 Page 110 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1013178
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 281NAAccreditation ID:
TX1013178(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1013375
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 282NAAccreditation ID:
TX1013375(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1012532
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 286NAAccreditation ID:
TX1012532(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/03/2023
Lab ID: AL1013385
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 287NAAccreditation ID:
TX1013385(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Lab ID: AL1013213
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 383NAAccreditation ID:
TX1013213(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 07/27/2020
Hach Pocket Colorimeter / DR3004500CL-GTotal Chlorine 07/27/2023
Lab ID: AL1013416
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 400 - EASTNAAccreditation ID:
TX1013416(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/03/2023
Lab ID: AL1013310
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 400 - WESTNAAccreditation ID:
TX1013310(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/03/2023
Lab ID: AL1013362
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 405NAAccreditation ID:
TX1013362(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1013632
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 422NAAccreditation ID:
TX1013632(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/03/2023
Monday, August 2, 2021 Page 111 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1013691
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 423NAAccreditation ID:
TX1013691(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 03/09/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 03/09/2023
Lab ID: AL1010718
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 44NAAccreditation ID:
TX1010718(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/19/2023
Lab ID: AL1013400
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 480NAAccreditation ID:
TX1013400(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1013511
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 494NAAccreditation ID:
TX1013511(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 11/04/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 11/04/2023
Lab ID: AL1013390
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 500NAAccreditation ID:
TX1013390(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/03/2023
Lab ID: AL1013403
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 501NAAccreditation ID:
TX1013403(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/03/2023
Lab ID: AL1013494
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 502NAAccreditation ID:
TX1013494(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/03/2023
Lab ID: AL1013530
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 530NAAccreditation ID:
TX1013530(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Lab ID: AL1013531
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 531NAAccreditation ID:
TX1013531(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Monday, August 2, 2021 Page 112 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1011704
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 58NAAccreditation ID:
TX1011704(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 07/14/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 07/14/2023
Lab ID: AL1010496
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 6 CARRIAGE LANE NAAccreditation ID:
TX1010496(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL1010721
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 61NAAccreditation ID:
TX1010721(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 08/05/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 08/05/2023
Lab ID: AL1012285
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY MUD 62NAAccreditation ID:
TX1012285(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 07/27/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 07/27/2023
Lab ID: AL1011778
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY UD 15NAAccreditation ID:
TX1011778(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 03/25/2021
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 03/25/2024
Lab ID: AL1010159
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY WCID 1NAAccreditation ID:
TX1010159(281) 426-2115Phone Number:Mark TaylorContact Name:
Approval Date: 08/03/2020
HACH DR3004500CL-GFree Chlorine 08/03/2023
ECOTester pH2+150.1pH 08/03/2023
ECOTester pH2+2550Temperature 08/03/2023
HACH DR3004500CL-GTotal Chlorine 08/03/2023
Lab ID: AL1010359
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY WCID 109NAAccreditation ID:
TX1010359(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL1010482
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY WCID 110NAAccreditation ID:
TX1010482(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Monday, August 2, 2021 Page 113 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1010509
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY WCID 119NAAccreditation ID:
TX1010509(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1010413
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY WCID 132NAAccreditation ID:
TX1010413(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL1010124
Valid UntilInstrumentMethodAnalyte
HARRIS COUNTY WCID 92NAAccreditation ID:
TX1010124(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1210013
Valid UntilInstrumentMethodAnalyte
HARRISBURG WSCNAAccreditation ID:
TX1210013(409) 200-5085Phone Number:Joshua ColbertContact Name:
Approval Date: 10/30/2020
HQ11-D4500H-BpH 10/30/2021
HQ11-D2550Temperature 10/30/2021
Lab ID: AL1013365
Valid UntilInstrumentMethodAnalyte
HARRIS-FORT BEND COUNTIES MUD 3 NAAccreditation ID:
TX1013365(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Lab ID: AL1011509
Valid UntilInstrumentMethodAnalyte
HARVEST FAMILY CHURCH OF THE ASSEMBLIES NAAccreditation ID:
TX1011509(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 05/06/2021
HACH Pocket Colorimeter II/DR3004500CL-GFree Chlorine 05/06/2024
Lab ID: AL2080003
Valid UntilInstrumentMethodAnalyte
HERMLEIGH WATER SYSTEMNAAccreditation ID:
TX2080003(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 06/25/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 06/25/2024
Monday, August 2, 2021 Page 114 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2260002
Valid UntilInstrumentMethodAnalyte
HHSC SAN ANGELO STATE SUPPORTED LIVING CENTER NAAccreditation ID:
TX2260002(325) 465-2381Phone Number:Eric ThibodeauxContact Name:
Approval Date: 05/27/2021
Titration2320BAlkalinity 05/27/2024
Xenco LaboratoriesContract LabCalcium 05/27/2024
Xenco LaboratoriesContract LabConductivity 05/27/2024
Hach Pocket Meter II4500CL-GFree Chlorine 05/27/2024
Hach CL174500CL-GFree Chlorine 05/27/2024
Hach HQ 440 D4500H-BpH 05/27/2024
Hach HQ 440 D2550Temperature 05/27/2024
Xenco LaboratoriesContract LabTOC 05/27/2024
Hach 1720 E2130BTurbidity 05/27/2024
Hach 2100N2130BTurbidity 05/27/2024
Lab ID: ALTP410367
Valid UntilInstrumentMethodAnalyte
HIDALGO COUNTY MUD 1 SWTPNAAccreditation ID:
TX1080088(956) 585-5821Phone Number:Jeremiah MartinContact Name:
Approval Date: 10/21/2019
Hach Alkalinity AL-Ap (Bromcresol)2320BAlkalinity 10/21/2022
Hach PC II Chlorine4500CL-DFree Chlorine 10/21/2022
HQ 11d Phc 101014500H-BpH 10/21/2022
HQ 11d Phc 101012550Temperature 10/21/2022
Ana-LabContract LabTOC 10/21/2022
Hach PC II Chlorine4500CL-DTotal Chlorine 10/21/2022
Hach 2100 Bench Top2130BTurbidity 10/21/2022
Lab ID: AL0270113
Valid UntilInstrumentMethodAnalyte
HIGH SIERRA WATER SYSTEMNAAccreditation ID:
TX0270113(830) 693-2963Phone Number:Ricky L. RoweContact Name:
Approval Date: 12/09/2020
LCRA ELSContract LabAlkalinity 12/09/2023
LCRA ELSContract LabCalcium 12/09/2023
LCRA ELSContract LabConductivity 12/09/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/09/2023
Oakton pH Testr 304500H-BpH 12/09/2023
Standard Digital Thermometer2550Temperature 12/09/2023
Lab ID: AL2200107
Valid UntilInstrumentMethodAnalyte
HILLTOP MOBILE HOME PARKNAAccreditation ID:
TX2200107(806) 421-9290Phone Number:Kim KniskernContact Name:
Approval Date: 03/11/2019
Pocket Colorimeter IIHACH 10260Free Chlorine 03/11/2022
Monday, August 2, 2021 Page 115 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2500012
Valid UntilInstrumentMethodAnalyte
HOLLY LAKE RANCHNAAccreditation ID:
TX2500012(903) 574-4155Phone Number:Shana WrightContact Name:
Approval Date: 11/23/2020
Oakton Waterproof PCS Tester 354500H-BpH 11/23/2021
Oakton Waterproof pH Tester 302550Temperature 11/23/2021
Lab ID: AL0460149
Valid UntilInstrumentMethodAnalyte
HUNTER FACILITYNAAccreditation ID:
TX0460149(512) 805-4465Phone Number:Kristin SteinContact Name:
Approval Date: 07/15/2020
Hach DR 9004500CL-GFree Chlorine 07/15/2023
Lab ID: AL1013191
Valid UntilInstrumentMethodAnalyte
HUNTER PLACENAAccreditation ID:
TX1013191(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Lab ID: AL1110083
Valid UntilInstrumentMethodAnalyte
HUNTERWOOD SUBDIVISION WATER SYSTEM NAAccreditation ID:
TX1110083(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 07/09/2021
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 07/29/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 07/29/2022
Lab ID: AL0200629
Valid UntilInstrumentMethodAnalyte
HUNTSMAN ETHYLENEAMINESNAAccreditation ID:
TX0200629(979) 237-6856Phone Number:Uwe KlinglerContact Name:
Approval Date: 08/05/2019
Hach SL1000HACH 10260Free Chlorine 08/05/2022
Hach SL1000 w/PHC101 Probe150.1pH 08/05/2022
Glass Thermometer2550Temperature 08/05/2022
Hach SL1000HACH 10260Total Chlorine 08/05/2022
Monday, August 2, 2021 Page 116 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15110
Valid UntilInstrumentMethodAnalyte
HURST CREEK MUD WTP LABNAAccreditation ID:
TX2270172(512) 261-6281Phone Number:Kurt PendletonContact Name:
Approval Date: 04/26/2019
Buret Titration2320BAlkalinity 04/26/2022
Department of State Health Services
Contract LabCalcium 04/26/2022
Department of State Health Services
Contract LabConductivity 04/26/2022
Hach Pocket Colorimeter II4500CL-GFree Chlorine 04/26/2022
Hach HQ11D (Intellical PHC201)4500H-BpH 04/26/2022
Department of State Health Services
Contract LabPhosphate 04/26/2022
Department of State Health Services
Contract LabSilica 04/26/2022
Hach HQ11D (Intellical PHC201)2550Temperature 04/26/2022
LCRA - Environmental Lab ServicesContract LabTOC 04/26/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 04/26/2022
Hach 2100Q180.1Turbidity 04/26/2022
Lab ID: AL0610276
Valid UntilInstrumentMethodAnalyte
IAA FORT WORTH NORTHNAAccreditation ID:
TX0610276(940) 597-1533Phone Number:Glenn BarkerContact Name:
Approval Date: 04/22/2020
Hach Colorimeter4500CL-FFree Chlorine 04/22/2023
SL10004500H-BpH 04/22/2023
SL10002550Temperature 04/22/2023
Lab ID: ALTP15059
Valid UntilInstrumentMethodAnalyte
IBWC FALCON VILLAGE SWTPNAAccreditation ID:
TX2140002(956) 844-9313Phone Number:Rogelio ReyesContact Name:
Approval Date: 11/21/2019
Hach Digital Titrator2320BAlkalinity 11/21/2022
Hach DR9004500CLO2-CChlorine Dioxide 11/21/2022
Hach DR9004500CL-GFree Chlorine 11/21/2022
Hach Pocket Colorimeter II4500CL-GFree Chlorine 11/21/2022
Hach Sension pH3150.1pH 11/21/2022
Hach Sension pH32550Temperature 11/21/2022
Hach DR9004500CL-GTotal Chlorine 11/21/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 11/21/2022
Hach 1720E180.1Turbidity 11/21/2022
Monday, August 2, 2021 Page 117 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0000348
Valid UntilInstrumentMethodAnalyte
INFRAMARKNAAccreditation ID:
(281) 358-2828Phone Number:Jon DawsonContact Name:
Approval Date: 11/10/2020
Hach DR 9004500CL-GFree Chlorine 11/10/2021
Envirodyne LaboratoriesContract LabpH 11/10/2021
Envirodyne LaboratoriesContract LabPhosphate 11/10/2021
Envirodyne LaboratoriesContract LabTurbidity 11/10/2021
Lab ID: AL2300009
Valid UntilInstrumentMethodAnalyte
INTERNATIONAL ALERT ACADEMYNAAccreditation ID:
TX2300009(903) 636-9244Phone Number:Jared PearrowContact Name:
Approval Date: 07/27/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 07/27/2023
Lab ID: AL2350014
Valid UntilInstrumentMethodAnalyte
INVISTA SARL VICTORIANAAccreditation ID:
TX2350014(361) 572-1210Phone Number:Cindy ShillingaContact Name:
Approval Date: 08/23/2018
Hach Pocket Colorimeter II4500CL-GFree Chlorine 08/23/2021
Hanna 9125150.1pH 08/23/2021
Hanna 91252550Temperature 08/23/2021
Lab ID: AL1190009
Valid UntilInstrumentMethodAnalyte
JACK COUNTY GENERATING FACILITYNAAccreditation ID:
TX1190009(254) 366-6989Phone Number:Vinnie VenethongkhamContact Name:
Approval Date: 10/29/2019
HACH DR300 POCKET COLORIMETER
4500CL-GFree Chlorine 10/29/2022
HACH DR300 POCKET COLORIMETER
4500CL-GTotal Chlorine 10/29/2022
Lab ID: ALTP410959
Valid UntilInstrumentMethodAnalyte
JESTER KING CRAFT BREWERY WTPNAAccreditation ID:
TX2270404(617) 462-5562Phone Number:Dan LargessContact Name:
Approval Date: 06/20/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 06/20/2022
HACH Pocket Colorimeter II4500CL-GTotal Chlorine 06/20/2022
Lab ID: AL1240001
Valid UntilInstrumentMethodAnalyte
JIM HOGG COUNTY WCID 2NAAccreditation ID:
TX1240001(361) 527-3287Phone Number:Billy MossContact Name:
Approval Date: 08/16/2019
Hach DR 300 Colorimeter4500CL-GFree Chlorine 08/16/2022
Hach DR 300 Colorimeter4500H-BpH 08/16/2022
Easyread/Glass2550Temperature 08/16/2022
Monday, August 2, 2021 Page 118 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0790480
Valid UntilInstrumentMethodAnalyte
JMLR INTERESTSNAAccreditation ID:
TX0790480(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 04/28/2021
HACH Pocket Colorimeter II/DR3004500CL-GFree Chlorine 04/28/2024
Lab ID: AL2270011
Valid UntilInstrumentMethodAnalyte
JONESTOWN WSCNAAccreditation ID:
TX2270011(512) 636-8147Phone Number:John M. TichiContact Name:
Approval Date: 11/26/2018
Hach HQ40D4500H-BpH 11/26/2021
Hach HQ40D2550Temperature 11/26/2021
Lab ID: AL0840274
Valid UntilInstrumentMethodAnalyte
JR EVANS AND ASSOCIATESNAAccreditation ID:
TX0840274(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 11/13/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 11/13/2022
Lab ID: AL0005692
Valid UntilInstrumentMethodAnalyte
KBAR WATER WELL & ELECTRICNAAccreditation ID:
(432) 556-7418Phone Number:Gregg BlainContact Name:
Approval Date: 07/30/2021
Oakton 300 Series2510BConductivity 07/30/2022
Oakton 300 SeriesD1293-12pH 07/02/2022
Oakton 300 Series2550Temperature 07/02/2022
Lab ID: AL1580003
Valid UntilInstrumentMethodAnalyte
KELLYVILLE BEREA WSCNAAccreditation ID:
TX1580003(903) 407-5559Phone Number:Bob LambertContact Name:
Approval Date: 02/05/2020
Hach SL1000 Portable Parallel Analyzer
150.1pH 02/05/2023
Hach SL1000 Portable Parallel Analyzer
2550Temperature 02/05/2023
Lab ID: AL1410028
Valid UntilInstrumentMethodAnalyte
KEMPNER WSCNAAccreditation ID:
TX1410028(512) 932-3701Phone Number:Delores AtkinsonContact Name:
Approval Date: 05/08/2019
HACH Digital Titrator2320BAlkalinity 05/08/2022
HACH DR39004500CL-GFree Chlorine 05/08/2022
HACH HQ40d150.1pH 05/08/2022
HACH HQ40d2550Temperature 05/08/2022
LCRA Environmental LaboratoryContract LabTOC 05/08/2022
HACH DR39004500CL-GTotal Chlorine 05/08/2022
HACH 2100N180.1Turbidity 05/08/2022
Monday, August 2, 2021 Page 119 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1370028
Valid UntilInstrumentMethodAnalyte
KING RANCH LAURELES DIVISIONNAAccreditation ID:
TX1370028(361) 219-0404Phone Number:Willis TinsleyContact Name:
Approval Date: 07/16/2021
Hach ColorimeterD1253-86Free Chlorine 07/16/2024
Oakton pH OEP WD-35613-20150.1pH 07/16/2024
Oakton pH OEP WD-35613-202550Temperature 07/16/2024
Lab ID: AL1310003
Valid UntilInstrumentMethodAnalyte
KING RANCH NORIASNAAccreditation ID:
TX1310003(361) 219-0404Phone Number:Willis TinsleyContact Name:
Approval Date: 07/16/2021
Hach ColorimeterD1253-86Free Chlorine 07/16/2024
Oakton pH OEP WD-35613-20150.1pH 07/16/2024
Oakton pH OEP WD-35613-202550Temperature 07/16/2024
Lab ID: AL1370012
Valid UntilInstrumentMethodAnalyte
KING RANCH SANTA GERTRUDIS DISTRICT NAAccreditation ID:
TX1370012(361) 219-0404Phone Number:Willis TinsleyContact Name:
Approval Date: 07/16/2021
Hach ColorimeterD1253-86Free Chlorine 07/16/2024
Oakton pH ORP WD-35613-20150.1pH 07/16/2024
Oakton pH ORP WD-35613-202550Temperature 07/16/2024
Lab ID: AL1500012
Valid UntilInstrumentMethodAnalyte
KINGSLAND WSCNAAccreditation ID:
TX1500012(325) 388-6611Phone Number:Chris DunbarContact Name:
Approval Date: 07/29/2021
HQ440D2320BAlkalinity 07/29/2024
DR9004500CL-GFree Chlorine 07/29/2024
CL174500CL-GFree Chlorine 07/29/2024
Colorimeter II4500CL-GFree Chlorine 07/29/2024
HQ440D150.1pH 07/29/2024
HQ440D2550Temperature 07/29/2024
Aqua-TechContract LabTOC 07/29/2024
CL174500CL-DTotal Chlorine 07/29/2024
DR9004500CL-DTotal Chlorine 07/29/2024
TU5300HACH 10258Turbidity 07/29/2024
TU5400HACH 10258Turbidity 07/29/2024
TU5200HACH 10258Turbidity 07/29/2024
Lab ID: AL1012042
Valid UntilInstrumentMethodAnalyte
KLEIN ISD TRANSPORTATION CENTER NAAccreditation ID:
TX1012042(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Monday, August 2, 2021 Page 120 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1011143
Valid UntilInstrumentMethodAnalyte
KLEIN PUDNAAccreditation ID:
TX1011143(713) 395-3100Phone Number:Gregory CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL1010440
Valid UntilInstrumentMethodAnalyte
KLEINWOOD MUDNAAccreditation ID:
TX1010440(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL1380013
Valid UntilInstrumentMethodAnalyte
KNOX RURAL COUNTY SUDNAAccreditation ID:
TX1380013(940) 256-0091Phone Number:Will KuehlerContact Name:
Approval Date: 04/08/2021
Oakton pH Testr 30150.2pH 04/08/2024
Oakton pH Testr 302550Temperature 04/08/2024
Lab ID: AL0940029
Valid UntilInstrumentMethodAnalyte
LAGO VISTA WATER SYSTEMNAAccreditation ID:
TX0940029(512) 227-1586Phone Number:Paul RoyallContact Name:
Approval Date: 11/24/2020
Hach Pocket Pro4500H-BpH 11/24/2023
Hach Pocket Pro2550Temperature 11/24/2023
Lab ID: ALTP14973
Valid UntilInstrumentMethodAnalyte
LAKE BUCHANANNAAccreditation ID:
TX1500037(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 02/09/2021
Hand Titrator2320BAlkalinity 02/09/2024
Hach Pocket Colorimeter II4500CL-GFree Chlorine 02/09/2024
Hach HQ11D150.1pH 02/09/2024
Hach HQ11D/NIST2550Temperature 02/09/2024
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 02/09/2024
Hach 2100Q180.1Turbidity 02/09/2024
Lab ID: ALTP14793
Valid UntilInstrumentMethodAnalyte
LAKE CISCO WTPNAAccreditation ID:
TX0670001(254) 442-2111Phone Number:Randy JohnsonContact Name:
Approval Date: 10/02/2019
Palin Test KitCHLORDIOX PLUSChlorine Dioxide 10/02/2022
Palin Test KitCHLORDIOX PLUSPOE Chlorite 10/02/2022
Lab ID: AL1010494
Valid UntilInstrumentMethodAnalyte
LAKE FOREST UTILITY DISTRICTNAAccreditation ID:
TX1010494(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Monday, August 2, 2021 Page 121 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1070198
Valid UntilInstrumentMethodAnalyte
LAKE PALESTINE WATERNAAccreditation ID:
TX1070198(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 02/21/2019
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/21/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/21/2022
Lab ID: ALTP15182
Valid UntilInstrumentMethodAnalyte
LAKE PALO PINTO AREA WSCNAAccreditation ID:
TX1820069(940) 329-1411Phone Number:Chase LermaContact Name:
Approval Date: 01/17/2020
Swan Codes II-CC4500CL-GFree Chlorine 01/17/2023
Oakton pH 7004500H-BpH 01/10/2022
Digital thermometer2550Temperature 01/10/2022
Swan Codes II-CC4500CL-GTotal Chlorine 01/17/2023
Lab ID: ALTP13334
Valid UntilInstrumentMethodAnalyte
LAKECLIFF ON LAKE TRAVISNAAccreditation ID:
TX2270327(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 05/04/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 05/04/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 05/04/2023
Lab ID: AL2040021
Valid UntilInstrumentMethodAnalyte
LAKEVIEW HILLS POANAAccreditation ID:
TX2040021(713) 859-7481Phone Number:Mark YorkContact Name:
Approval Date: 12/18/2019
Hach Pocket Colorimeter, model cn-66
4500CL-GFree Chlorine 12/18/2022
Lab ID: ALTP15058
Valid UntilInstrumentMethodAnalyte
LAKEWAY HARBOR SUBDIVISIONNAAccreditation ID:
TX2120064(512) 219-2294Phone Number:Timothy WillifordContact Name:
Approval Date: 11/01/2018
Titrate2320BAlkalinity 11/01/2021
HACH Pocket Colorimeter ll4500CL-GFree Chlorine 11/01/2021
HACH SensION pH314500H-BpH 11/01/2021
Thermometer2550Temperature 11/01/2021
Contract LabTOC 11/01/2021
HACH CL174500CL-FTotal Chlorine 11/01/2021
HACH 2100N and HACH 1720E2130BTurbidity 11/01/2021
Contract LabUV254 11/01/2021
Monday, August 2, 2021 Page 122 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15174
Valid UntilInstrumentMethodAnalyte
LAKEWAY MUD WATER PLANT W3 LAB NAAccreditation ID:
TX2270012(512) 261-5100Phone Number:Rafael MendozaContact Name:
Approval Date: 09/20/2019
Titration2320BAlkalinity 09/20/2022
Aqua Tech LabContract LabCalcium 09/20/2022
Aqua Tech LabContract LabConductivity 09/20/2022
Hach Pocket Colorimeter4500CL-GFree Chlorine 09/20/2022
Hach DPD 1R1 Sensor4500H-BpH 09/20/2022
Aqua Tech LabContract LabPhosphate 09/20/2022
Aqua Tech LabContract LabPOE Chlorite 09/20/2022
Aqua Tech LabContract LabSilica 09/20/2022
Hach DPD 1R1 Sensor2550Temperature 09/20/2022
Aqua Tech LabContract LabTOC 09/20/2022
Hach Pocket Colorimeter4500CL-GTotal Chlorine 09/20/2022
Hach P2100180.1Turbidity 09/20/2022
Aqua Tech LabContract LabUV254 09/20/2022
Lab ID: AL2410035
Valid UntilInstrumentMethodAnalyte
LAMBERTI USANAAccreditation ID:
TX2410035(281) 342-5675Phone Number:Gabriele GrecoContact Name:
Approval Date: 03/17/2021
Hach DR 600 Program 804500CL-GFree Chlorine 03/17/2024
Accumet pH Electrode w/XL Benchtop
4500H-BpH 03/17/2024
Fisherbrand Traceable Digital Ther2550Temperature 03/17/2024
Lab ID: AL1700855
Valid UntilInstrumentMethodAnalyte
LAMBERTI USA CONROE PLANT 8910NAAccreditation ID:
TX1700855(936) 231-3004Phone Number:Morris DubsContact Name:
Approval Date: 09/02/2020
Hach DE/20004500CL-GFree Chlorine 09/02/2023
Orion Star A111D1293-99pH 09/02/2023
Orion Star A1112550Temperature 09/02/2023
Lab ID: AL1011249
Valid UntilInstrumentMethodAnalyte
LANGHAM CREEK UTILITY DISTRICTNAAccreditation ID:
TX1011249(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/19/2023
Lab ID: AL1700039
Valid UntilInstrumentMethodAnalyte
LAZY RIVER IMPROVEMENT DISTRICT NAAccreditation ID:
TX1700039(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Monday, August 2, 2021 Page 123 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1500011
Valid UntilInstrumentMethodAnalyte
LCRA TOW WATER SYSTEMNAAccreditation ID:
TX1500011(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 06/23/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 06/23/2024
Lab ID: AL1550035
Valid UntilInstrumentMethodAnalyte
LEVI WSCNAAccreditation ID:
TX1550035(254) 723-1834Phone Number:Charles D. (Don) Brandon JContact Name:
Approval Date: 04/25/2019
Hach Pocket Colorimeter4500CL-GFree Chlorine 04/25/2022
Lab ID: AL1700070
Valid UntilInstrumentMethodAnalyte
LEWIS CREEK PLANTNAAccreditation ID:
TX1700070(936) 443-7178Phone Number:Dustin LoranceContact Name:
Approval Date: 01/08/2020
Hach Digital Titrator 169002320BAlkalinity 01/08/2023
Eastex Environmental LabContract LabCalcium 01/08/2023
Eastex Environmental LabContract LabConductivity 01/08/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/08/2023
Eastex Environmental LabContract LabHardness 01/08/2023
Thermo Scientific Orion Versa Star4500H-BpH 01/08/2023
Hach Pocket Colorimeter Phosphate
365.1Phosphate 01/08/2023
Eastex Environmental LabContract LabSilica 01/08/2023
Atkins Aqua Tuff 352 Thermometer2550Temperature 01/08/2023
Lab ID: AL1740012
Valid UntilInstrumentMethodAnalyte
LIBBY WSCNAAccreditation ID:
TX1740012(936) 558-8366Phone Number:Brian WalkerContact Name:
Approval Date: 01/24/2020
Eastex EnvironmentalContract LabOrthophosphate 01/24/2023
Hach HQ11D4500H-BpH 01/24/2023
Hach PHC 2012550Temperature 01/24/2023
Hach DR 9004500CL-GTotal Chlorine 01/24/2023
Lab ID: AL1740014
Valid UntilInstrumentMethodAnalyte
LILLY GROVE SUDNAAccreditation ID:
TX1740014(936) 569-9292Phone Number:Boyd DueboayContact Name:
Approval Date: 01/16/2020
Pocket Colorimeter II4500CL-GFree Chlorine 01/16/2023
Hach Kit4500H-BpH 01/16/2023
Hach Kit2550Temperature 01/16/2023
Eastex Environmental LabContract LabTOC 01/16/2023
Lab ID: AL1470023
Valid UntilInstrumentMethodAnalyte
LIMESTONE ELECTRIC GENERATING FACILITY NAAccreditation ID:
TX1470023(903) 626-9762Phone Number:Jason ScottContact Name:
Approval Date: 09/16/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/16/2022
Monday, August 2, 2021 Page 124 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0008351
Valid UntilInstrumentMethodAnalyte
LJA ENVIRONMENTAL SERVICES, LLCNAAccreditation ID:
(281) 239-5181Phone Number:Dyer SchlitzkusContact Name:
Approval Date: 05/24/2021
Pocket Pro+ Multi 2 Tester150.1pH 05/24/2022
Pocket Pro+ Multi 2 Tester2550Temperature 05/24/2022
Lab ID: AL1520307
Valid UntilInstrumentMethodAnalyte
LLANO ESCATADO WINERYNAAccreditation ID:
TX1520307(806) 745-2258Phone Number:Cassiopeia Roberson-MullContact Name:
Approval Date: 07/01/2019
DR 900, HACH COLORIMETER4500CL-FFree Chlorine 07/01/2022
DR 900, HACH COLORIMETER4500CL-FTotal Chlorine 07/01/2022
Lab ID: AL1013507
Valid UntilInstrumentMethodAnalyte
LOCKWOOD INTERNATIONALNAAccreditation ID:
TX1013507(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 10/28/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 10/28/2022
Lab ID: ALTP20400
Valid UntilInstrumentMethodAnalyte
LOMETA REGIONAL WATER SYSTEMNAAccreditation ID:
TX1410002(512) 525-6659Phone Number:Matt MolterContact Name:
Approval Date: 02/02/2021
Hach SL-10002320BAlkalinity 02/02/2024
Hach SL-10004500CL-GFree Chlorine 02/02/2024
Hach SL-1000150.1pH 02/02/2024
Hach SL-1000/NIST2550Temperature 02/02/2024
Hach SL-10004500CL-GTotal Chlorine 02/02/2024
Hach 2100N180.1Turbidity 02/02/2024
Lab ID: AL1510001
Valid UntilInstrumentMethodAnalyte
LOVING COUNTY WATER SYSTEMNAAccreditation ID:
TX1510001(432) 236-3155Phone Number:Joshua FitzwaterContact Name:
Approval Date: 03/30/2021
Xenco LaboratoriesContract LabAlkalinity 03/30/2024
Xenco LaboratoriesContract LabCalcium 03/30/2024
Xenco LaboratoriesContract LabConductivity 03/30/2024
HACH DR3004500CL-GFree Chlorine 03/30/2024
Xenco LaboratoriesContract LabHardness 03/30/2024
HACH Sension +pH14500H-BpH 03/30/2024
Thermometer2550Temperature 03/30/2024
Monday, August 2, 2021 Page 125 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP20506
Valid UntilInstrumentMethodAnalyte
LOWER NECHES VALLEY AUTHORITYNAAccreditation ID:
TX0360112(409) 296-3028Phone Number:Steve WeatherfordContact Name:
Approval Date: 03/29/2021
Hand Titrated2320BAlkalinity 03/29/2024
Hach DR 9004500CL-GFree Chlorine 03/29/2024
Hach HQ 411d4500H-BpH 03/29/2024
Hach HQ 411d2550Temperature 03/29/2024
Eastex Environmental Laboratory, Inc
Contract LabTOC 03/29/2024
Hach DR 3900/DR 9004500CL-GTotal Chlorine 03/29/2024
Hach TL23002130BTurbidity 03/29/2024
Lab ID: AL1011526
Valid UntilInstrumentMethodAnalyte
LUBRIZOL DEER PARK PLANTNAAccreditation ID:
TX1011526(832) 260-7039Phone Number:Dusty LucasContact Name:
Approval Date: 05/04/2021
HACH Pocket Colorimeter4500CL-GFree Chlorine 05/04/2024
Symphony SB70P4500H-BpH 05/04/2024
Ertco Thermometer2550Temperature 05/04/2024
Lab ID: AL2200208
Valid UntilInstrumentMethodAnalyte
LUNAR LANE WATER SYSTEMNAAccreditation ID:
TX2200208(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 09/02/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 09/02/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 09/02/2023
Lab ID: AL1010495
Valid UntilInstrumentMethodAnalyte
MALCOMSON ROAD UTILITY DISTRICT NAAccreditation ID:
TX1010495(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL1300062
Valid UntilInstrumentMethodAnalyte
MANNAPOV LLCNAAccreditation ID:
TX1300062(210) 852-9809Phone Number:Ben EichholzContact Name:
Approval Date: 09/17/2018
HACH POCKET COLORIMETER4500CL-GFree Chlorine 09/17/2021
HACH POCKET PRO4500H-BpH 09/17/2021
HACH POCKET PRO2550Temperature 09/17/2021
HACH POCKET COLORIMETER4500CL-GTotal Chlorine 09/17/2021
Lab ID: AL1810191
Valid UntilInstrumentMethodAnalyte
MARITIME ADMIN BEAUMONT LAYBERTH FACIL NAAccreditation ID:
TX1810191(409) 670-3881Phone Number:Joe RoyeContact Name:
Approval Date: 10/18/2019
HACH Pocket Pro + pH Meter4500H-BpH 10/18/2022
Thermometer2550Temperature 10/18/2022
Monday, August 2, 2021 Page 126 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1012454
Valid UntilInstrumentMethodAnalyte
MARY IMMACULATE PRESCHOOLNAAccreditation ID:
TX1012454(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 05/06/2021
HACH Pocket Colorimeter II/DR3004500CL-GFree Chlorine 05/06/2024
Lab ID: AL1610052
Valid UntilInstrumentMethodAnalyte
MATAGORDA DUNES SUBDIVISIONNAAccreditation ID:
TX1610052(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 04/14/2021
Hach Colorimeter II4500CL-GFree Chlorine 04/14/2024
Hach Sension +150.1pH 04/14/2024
Hach Sension +2550Temperature 04/14/2024
Hach Colorimeter II4500CL-GTotal Chlorine 04/14/2024
Lab ID: AL1011689
Valid UntilInstrumentMethodAnalyte
MAYDE CREEK MUDNAAccreditation ID:
TX1011689(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: ALTP20670
Valid UntilInstrumentMethodAnalyte
MCALLEN PUBLIC UTILITY NW PLANTNAAccreditation ID:
TX1080006(956) 681-1722Phone Number:Juan M. VallejoContact Name:
Approval Date: 09/01/2020
Hach HQ440D/Titration2320BAlkalinity 09/01/2023
Capital Control Titrator4500CLO2-EChlorine Dioxide 09/01/2023
Capital Control Titrator4500CLO2-EChlorite 09/01/2023
CL-17 Online Analyzer4500CL-GFree Chlorine 09/01/2023
Hach DR9004500CL-GFree Chlorine 09/01/2023
Hach HQ440D4500H-BpH 09/01/2023
ATC on Hach HQ440D2550Temperature 09/01/2023
In-house-testing-lab5310BTOC 09/01/2023
CL-17 Online Analyzer4500CL-GTotal Chlorine 09/01/2023
Hach DR9004500CL-GTotal Chlorine 09/01/2023
Hach 1720E Online Analyzer2130BTurbidity 09/01/2023
Hach 2100N2130BTurbidity 09/01/2023
HACH TU5200HACH 10258Turbidity 09/01/2023
Monday, August 2, 2021 Page 127 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14888
Valid UntilInstrumentMethodAnalyte
MCALLEN PUBLIC UTILITY PLANT 2NAAccreditation ID:
TX1080006(956) 681-1720Phone Number:Juan M. VallejoContact Name:
Approval Date: 09/01/2020
Hach HQ440D/Titration2320BAlkalinity 09/01/2023
Capital Control Titrator4500CLO2-EChlorine Dioxide 09/01/2023
Capital Control Titrator4500CLO2-EChlorite 09/01/2023
Hach DR9004500CL-GFree Chlorine 09/01/2023
CL-17 Online Analyzer4500CL-GFree Chlorine 09/01/2023
Hach HQ440D4500H-BpH 09/01/2023
ATC on Hach HQ440D2550Temperature 09/01/2023
In-house-testing-lab5310BTOC 09/01/2023
Hach DR9004500CL-GTotal Chlorine 09/01/2023
CL-17 Online Analyzer4500CL-GTotal Chlorine 09/01/2023
Hach 1720E Online Analyzer2130BTurbidity 09/01/2023
Hach 2100N2130BTurbidity 09/01/2023
HACH TU5200HACH 10258Turbidity 09/01/2023
Lab ID: 48151
Valid UntilInstrumentMethodAnalyte
MCALLEN WATER LABORATORYT104704354Accreditation ID:
TX1080006(956) 681-1720Phone Number:Juan M. VallejoContact Name:
Approval Date: 09/01/2020
Accumet AB200/Titration2320BAlkalinity 09/01/2023
Titration-CEP3500-CA BCalcium 09/01/2023
Hach DR39004500CLO2-DChlorine Dioxide 09/01/2023
NovaChem Labs, Inc.Contract LabChlorite 09/01/2023
Accumet AB2002510BConductivity 09/01/2023
Hach DR9004500CL-GFree Chlorine 09/01/2023
Hanna HI981294500H-BpH 09/01/2023
OAKTON pHTestr 54500H-BpH 09/01/2023
Accumet AB2004500H-BpH 09/01/2023
OAKTON pHTestr 52550Temperature 09/01/2023
Hanna HI981292550Temperature 09/01/2023
Shimadzu TOC-L5310BTOC 09/01/2023
Hach DR9004500CL-GTotal Chlorine 09/01/2023
HACH TU5200HACH 10258Turbidity 09/01/2023
Lab ID: AL1080006
Valid UntilInstrumentMethodAnalyte
MCALLEN WATER LABORATORYNAAccreditation ID:
TX1080006(956) 681-1722Phone Number:Juan M. VallejoContact Name:
Approval Date: 08/29/2018
Hanna HI981294500H-BpH 08/29/2021
Hanna HI981292550Temperature 08/29/2021
Monday, August 2, 2021 Page 128 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0110025
Valid UntilInstrumentMethodAnalyte
MD ANDERSON SMITHVILLENAAccreditation ID:
TX0110025(512) 785-9801Phone Number:Cari HarringtonContact Name:
Approval Date: 12/28/2018
Oakton Meter4500H-BpH 12/28/2021
Oakton Meter2550Temperature 12/28/2021
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 12/28/2021
Lab ID: AL1050077
Valid UntilInstrumentMethodAnalyte
MEADOW WOODS WATER SUPPLYNAAccreditation ID:
TX1050077(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 04/14/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 04/14/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 04/14/2023
Lab ID: AL2460144
Valid UntilInstrumentMethodAnalyte
MEADOWCREST MHPNAAccreditation ID:
TX2460144(979) 739-1706Phone Number:Dustin LozanoContact Name:
Approval Date: 01/28/2020
Hach 5870000 Pocket Colorimeter II
HACH 10260Free Chlorine 01/28/2023
Lab ID: AL0200189
Valid UntilInstrumentMethodAnalyte
MEADOWVIEW SUBDIVISIONNAAccreditation ID:
TX0200189(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 11/07/2019
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 11/07/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 11/07/2022
Lab ID: AL1010279
Valid UntilInstrumentMethodAnalyte
MEMORIAL HILLS UTILITY DISTRICTNAAccreditation ID:
TX1010279(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL1013223
Valid UntilInstrumentMethodAnalyte
METALLIC PRODUCTS CORPORATION NAAccreditation ID:
TX1013223(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 04/18/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 04/18/2022
Monday, August 2, 2021 Page 129 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0480015
Valid UntilInstrumentMethodAnalyte
MILLERSVIEW-DOOLE WSCNAAccreditation ID:
TX0480015(325) 483-5438Phone Number:Cody GiddensContact Name:
Approval Date: 06/09/2021
Hach 1433 Model AL-AP, Lot # 24443-00
2320BAlkalinity 06/09/2024
Hanna Instrument - HI967114500CL-GFree Chlorine 06/09/2024
Orion 4 Star150.1pH 06/09/2024
Manual Thermometer2550Temperature 06/09/2024
Hanna Instrument - HI967114500CL-GTotal Chlorine 06/09/2024
Hach 2100AHACH 10258Turbidity 06/09/2024
Lab ID: AL0430041
Valid UntilInstrumentMethodAnalyte
MILLIGAN WSCNAAccreditation ID:
TX0430041(972) 542-1143Phone Number:Candi BlisardContact Name:
Approval Date: 11/18/2019
Oakton pH Testr 304500H-BpH 11/18/2022
Standard Digital Thermometer2550Temperature 11/18/2022
Lab ID: AL1011107
Valid UntilInstrumentMethodAnalyte
MILLS ROAD MUDNAAccreditation ID:
TX1011107(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL2400025
Valid UntilInstrumentMethodAnalyte
MIRANDO CITY WSCNAAccreditation ID:
TX2400025(361) 586-5092Phone Number:Billy MossContact Name:
Approval Date: 06/28/2019
HACH POCKET COLORIMETER II4500CL-DFree Chlorine 06/28/2022
Lab ID: AL1680004
Valid UntilInstrumentMethodAnalyte
MITCHELL COUNTY UTILITYNAAccreditation ID:
TX1680004(512) 306-4002Phone Number:Ryan DorthContact Name:
Approval Date: 07/28/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 07/28/2023
Lab ID: AL1013505
Valid UntilInstrumentMethodAnalyte
MOGAS INDUSTRIESNAAccreditation ID:
TX1013505(281) 221-9582Phone Number:Jack MurrayContact Name:
Approval Date: 09/01/2020
Hach 57800624500CL-GFree Chlorine 09/01/2021
Hach 981274500H-BpH 09/01/2021
Hach 981282550Temperature 09/01/2021
Hach 57800624500CL-GTotal Chlorine 09/01/2021
Monday, August 2, 2021 Page 130 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0010023
Valid UntilInstrumentMethodAnalyte
MONTALBA WSCNAAccreditation ID:
TX0010023(903) 724-3228Phone Number:Kenneth WilbanksContact Name:
Approval Date: 03/20/2019
Orion 720A4500H-BpH 03/20/2022
Hach HQ40D2550Temperature 03/20/2022
Lab ID: AL1700773
Valid UntilInstrumentMethodAnalyte
MONTGOMERY COUNTY MUD 119 SPRING TRAILS NAAccreditation ID:
TX1700773(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Lab ID: AL1700746
Valid UntilInstrumentMethodAnalyte
MONTGOMERY COUNTY MUD 98NAAccreditation ID:
TX1700746(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 07/27/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 07/27/2023
Lab ID: AL1011957
Valid UntilInstrumentMethodAnalyte
MOUNT HOUSTON SQUARENAAccreditation ID:
TX1011957(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL1670013
Valid UntilInstrumentMethodAnalyte
MULLIN INDEPENDENT SCHOOL DISTRICT NAAccreditation ID:
TX1670013(325) 998-3917Phone Number:Jeff SligerContact Name:
Approval Date: 09/26/2019
ExStik II150.1pH 09/26/2022
ExStik II2550Temperature 09/26/2022
Lab ID: AL2510025
Valid UntilInstrumentMethodAnalyte
MUSTANG STATION WSNAAccreditation ID:
TX2510025(806) 349-5296Phone Number:Ronnie PopejoyContact Name:
Approval Date: 03/20/2019
Hach 5870000 Pocket Colorimeter II
4500CL-GFree Chlorine 03/20/2022
Oakton pH 150 (UX-35614-90)150.1pH 03/20/2022
Digi-Sense Thermistor (20250-93)2550Temperature 03/20/2022
Lab ID: AL1013115
Valid UntilInstrumentMethodAnalyte
NATIONAL SPECIALITY ALLOYSNAAccreditation ID:
TX1013115(713) 540-1084Phone Number:Jerek MigginsContact Name:
Approval Date: 11/01/2018
Jellas PH Meter4500H-BpH 11/01/2021
Thermometer2550Temperature 11/01/2021
Hach Pocket Colorimeter4500CL-GTotal Chlorine 11/01/2021
Monday, August 2, 2021 Page 131 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1370003
Valid UntilInstrumentMethodAnalyte
NAVAL AIR STATION KINGSVILLENAAccreditation ID:
TX1370003(361) 516-6102Phone Number:Albert Guajardo Sr.Contact Name:
Approval Date: 04/09/2019
HACH DR 9004500CL-GFree Chlorine 04/09/2022
HANNA Pocket Meter HI98127-HI98128
4500H-BpH 04/09/2022
HACH DR 9004500CL-DTotal Chlorine 04/09/2022
Lab ID: AL0430053
Valid UntilInstrumentMethodAnalyte
NEVADA SUDNAAccreditation ID:
TX0430053(972) 843-2608Phone Number:Johnny RudisillContact Name:
Approval Date: 01/21/2021
Hach SL-10004500CL-GFree Chlorine 01/21/2024
Hach SL-1000150.1pH 01/21/2024
Hach SL-10002550Temperature 01/21/2024
Hach SL-10004500CL-GTotal Chlorine 01/21/2024
Lab ID: 48154
Valid UntilInstrumentMethodAnalyte
NEW BRAUNFELS UTILITIESNAAccreditation ID:
TX0460001(830) 608-8812Phone Number:John KrauseContact Name:
Approval Date: 9/24/2020
Orion 2 Star2320BAlkalinity 09/24/2023
HQ-40D2510BConductivity 09/24/2023
DR 39004500CL-GFree Chlorine 09/24/2023
Orion 2 Star4500H-BpH 09/24/2023
Orion 2 Star2550Temperature 09/24/2023
DR 39004500CL-GTotal Chlorine 09/24/2023
TU 5200HACH 10258Turbidity 09/24/2023
Lab ID: AL1670009
Valid UntilInstrumentMethodAnalyte
NEW HORIZONS RANCHNAAccreditation ID:
TX1670009(940) 781-5270Phone Number:John FluhartyContact Name:
Approval Date: 01/16/2019
HACH Digital Titrator2320BAlkalinity 01/16/2022
HACH Pocket Colorimeter II4500CL-GFree Chlorine 01/16/2022
HACH Sension 1564500H-BpH 01/16/2022
HACH Sension 1562550Temperature 01/16/2022
HACH Pocket Colorimeter II/CL174500CL-GTotal Chlorine 01/16/2022
2100N Benchtop TurbidimeterHACH 10258Turbidity 01/16/2022
Monday, August 2, 2021 Page 132 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14899
Valid UntilInstrumentMethodAnalyte
NORTH ALAMO WSC - PLANT 1NAAccreditation ID:
TX1080029(956) 383-1618Phone Number:Estevan FloresContact Name:
Approval Date: 05/13/2021
Hach Stir Plate2320BAlkalinity 05/13/2024
Ana-LabContract LabCalcium 05/13/2024
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 05/13/2024
Ana-LabContract LabConductivity 05/13/2024
DR 900 Hach4500CL-GFree Chlorine 05/13/2024
Hach Sension + pH 14500H-BpH 05/13/2024
Ana-LabContract LabPhosphate 05/13/2024
Hach Amperometric Titrator4500CLO2-EPOE Chlorite 05/13/2024
Ana-LabContract LabSilica 05/13/2024
Hach Sension + pH 12550Temperature 05/13/2024
Ana-LabContract LabTOC 05/13/2024
DR 900 Hach4500CL-ETotal Chlorine 05/13/2024
Hach 2100N180.1Turbidity 05/13/2024
Ana-LabContract LabUV254 05/13/2024
Lab ID: ALTP14900
Valid UntilInstrumentMethodAnalyte
NORTH ALAMO WSC - PLANT 2NAAccreditation ID:
TX1080029(956) 383-1618Phone Number:Estevan FloresContact Name:
Approval Date: 05/13/2021
Hach Stir Plate2320BAlkalinity 05/13/2024
Ana-LabContract LabCalcium 05/13/2024
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 05/13/2024
Ana-LabContract LabConductivity 05/13/2024
DR 900 Hach4500CL-GFree Chlorine 05/13/2024
Hach Sension + pH 14500H-BpH 05/13/2024
Ana-LabContract LabPhosphate 05/13/2024
Hach Amperometric Titrator4500CLO2-EPOE Chlorite 05/13/2024
Ana-LabContract LabSilica 05/13/2024
Hach Sension + pH 12550Temperature 05/13/2024
Ana-LabContract LabTOC 05/13/2024
DR 900 Hach4500CL-ETotal Chlorine 05/13/2024
TU 5200180.1Turbidity 05/13/2024
Ana-LabContract LabUV254 05/13/2024
Monday, August 2, 2021 Page 133 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14902
Valid UntilInstrumentMethodAnalyte
NORTH ALAMO WSC - PLANT 4NAAccreditation ID:
TX1080029(956) 383-1618Phone Number:Estevan FloresContact Name:
Approval Date: 05/13/2021
Hach Stir Plate2320BAlkalinity 05/13/2024
Ana-LabContract LabCalcium 05/13/2024
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 05/13/2024
Ana-LabContract LabConductivity 05/13/2024
DR 900 Hach4500CL-GFree Chlorine 05/13/2024
Hach Sension + pH 14500H-BpH 05/13/2024
Ana-LabContract LabPhosphate 05/13/2024
Hach Amperometric Titrator4500CLO2-EPOE Chlorite 05/13/2024
Ana-LabContract LabSilica 05/13/2024
Hach Sension + pH 12550Temperature 05/13/2024
Ana-LabContract LabTOC 05/13/2024
DR 900 Hach4500CL-ETotal Chlorine 05/13/2024
Hach 2100N180.1Turbidity 05/13/2024
Ana-LabContract LabUV254 05/13/2024
Lab ID: ALTP14903
Valid UntilInstrumentMethodAnalyte
NORTH ALAMO WSC - PLANT 5NAAccreditation ID:
TX1080029(956) 383-1618Phone Number:Estevan FloresContact Name:
Approval Date: 05/13/2021
Hach Stir Plate2320BAlkalinity 05/13/2024
Ana-LabContract LabCalcium 05/13/2024
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 05/13/2024
Ana-LabContract LabConductivity 05/13/2024
DR 900 Hach4500CL-GFree Chlorine 05/13/2024
Hach Sension + pH 14500H-BpH 05/13/2024
Ana-LabContract LabPhosphate 05/13/2024
Hach Amperometric Titrator4500CLO2-EPOE Chlorite 05/13/2024
Ana-LabContract LabSilica 05/13/2024
Hach Sension + pH 12550Temperature 05/13/2024
Ana-LabContract LabTOC 05/13/2024
DR 900 Hach4500CL-ETotal Chlorine 05/13/2024
Hach 2100N180.1Turbidity 05/13/2024
Ana-LabContract LabUV254 05/13/2024
Monday, August 2, 2021 Page 134 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14904
Valid UntilInstrumentMethodAnalyte
NORTH ALAMO WSC - PLANT 6NAAccreditation ID:
TX1080029(956) 383-1618Phone Number:Estevan FloresContact Name:
Approval Date: 05/13/2021
Hach Stir Plate2320BAlkalinity 05/13/2024
Ana-LabContract LabCalcium 05/13/2024
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 05/13/2024
Ana-LabContract LabConductivity 05/13/2024
DR 900 Hach4500CL-GFree Chlorine 05/13/2024
Hach Sension + pH 14500H-BpH 05/13/2024
Ana-LabContract LabPhosphate 05/13/2024
Hach Amperometric Titrator4500CLO2-EPOE Chlorite 05/13/2024
Ana-LabContract LabSilica 05/13/2024
Hach Sension + pH 12550Temperature 05/13/2024
Ana-LabContract LabTOC 05/13/2024
DR 900 Hach4500CL-ETotal Chlorine 05/13/2024
Hach 2100N180.1Turbidity 05/13/2024
Ana-LabContract LabUV254 05/13/2024
Lab ID: ALTP410582
Valid UntilInstrumentMethodAnalyte
NORTH ALAMO WSC - PLANT 7NAAccreditation ID:
TX1080029(956) 383-1618Phone Number:Estevan FloresContact Name:
Approval Date: 05/13/2021
Hach Stir Plate2320BAlkalinity 05/13/2024
Ana-LabContract LabCalcium 05/13/2024
Hach Amperometric Titrator4500CLO2-EChlorine Dioxide 05/13/2024
Ana-LabContract LabConductivity 05/13/2024
DR 900 Hach4500CL-GFree Chlorine 05/13/2024
Hach Sension + pH 14500H-BpH 05/13/2024
Ana-LabContract LabPhosphate 05/13/2024
Hach Amperometric Titrator4500CLO2-EPOE Chlorite 05/13/2024
Ana-LabContract LabSilica 05/13/2024
Hach Sension + pH 12550Temperature 05/13/2024
Ana-LabContract LabTOC 05/13/2024
DR 900 Hach4500CL-ETotal Chlorine 05/13/2024
Hach 2100N180.1Turbidity 05/13/2024
Ana-LabContract LabUV254 05/13/2024
Monday, August 2, 2021 Page 135 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0310152
Valid UntilInstrumentMethodAnalyte
NORTH CAMERON REGIONAL WATER TREATMENT NAAccreditation ID:
TX0310152(956) 247-7744Phone Number:Eric HaydonContact Name:
Approval Date: 1/15/2019
Class A Glass Buret Titration2320BAlkalinity 01/15/2022
Hach Pocket II Colorimeter4500CL-GFree Chlorine 01/15/2022
Hach HQ40d pH Meter4500H-BpH 01/15/2022
Hach HQ40d pH Meter2550Temperature 01/15/2022
Hach Pocket II Colorimeter4500CL-GTotal Chlorine 01/15/2022
TU5200HACH 10258Turbidity 01/15/2022
Lab ID: AL0150553
Valid UntilInstrumentMethodAnalyte
NORTH CENTRAL BAPTIST HOSPITALNAAccreditation ID:
TX0150553(210) 480-7834Phone Number:Gilbert PerezContact Name:
Approval Date: 09/28/2018
PalintestCHLORDIOX PLUSChlorine Dioxide 09/28/2021
PalintestCHLORDIOX PLUSChlorite (at EP) 09/28/2021
Hach Pocket Colorimeter ll4500CL-DFree Chlorine 09/28/2021
Lab ID: ALTP14958
Valid UntilInstrumentMethodAnalyte
NORTH CENTRAL TEXAS MUNICIPAL WATER AUTHORITY WTP LAB NAAccreditation ID:
TX1380009(940) 422-4051Phone Number:David KuehlerContact Name:
Approval Date: 09/18/2018
Fisher2320BAlkalinity 09/18/2021
Captital Controls 17T20004500CLO2-DChlorine Dioxide 09/18/2021
Captital Controls 17T20004500CLO2-EChlorite (at EP) 09/18/2021
Hach Colorimeter ll, Hach AG SC4500CL-GFree Chlorine 09/18/2021
Thermo Orion 260A4500H-BpH 09/18/2021
Hach Lab Thermometer2550Temperature 09/18/2021
Contract LabTOC 09/18/2021
Hach Colorimeter ll, Hach AG SC4500CL-GTotal Chlorine 09/18/2021
Hach 2100P, Hach 1720EGLI 2Turbidity 09/18/2021
Lab ID: AL0430043
Valid UntilInstrumentMethodAnalyte
NORTH FARMERSVILLE WSCNAAccreditation ID:
TX0430043(972) 658-9636Phone Number:Tony McClainContact Name:
Approval Date: 05/30/2019
HM Digital PH-80150.1pH 05/30/2022
HM Digital PH-802550Temperature 05/30/2022
Lab ID: AL1010331
Valid UntilInstrumentMethodAnalyte
NORTH GREEN MUDNAAccreditation ID:
TX1010331(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Monday, August 2, 2021 Page 136 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1000015
Valid UntilInstrumentMethodAnalyte
NORTH HARDIN WSCNAAccreditation ID:
TX1000015(409) 385-7355Phone Number:Bobby L. RogersContact Name:
Approval Date: 11/27/2019
HACH DR300 Pocket Colorimeter4500CL-GFree Chlorine 11/27/2022
HACH Pocket Colorimeter ll4500CL-GFree Chlorine 11/27/2022
Lab ID: ALTP21116
Valid UntilInstrumentMethodAnalyte
NORTH TEXAS MWD - BONHAMNAAccreditation ID:
TX0740051(903) 583-9694Phone Number:Billy HallContact Name:
Approval Date: 11/14/2018
Hach Digital Titrator2320BAlkalinity 11/14/2021
Wallace and Tiernan Model A7904500CLO2-EChlorine Dioxide 11/14/2021
Wallace and Tiernan Model A7904500CLO2-EChlorite 11/14/2021
Hach SpectrophotometerHACH 10260Free Chlorine 11/14/2021
Orion Star A III4500H-BpH 11/14/2021
Orion Star III2550Temperature 11/14/2021
Hach SpectrophotometerHACH 10260Total Chlorine 11/14/2021
Hach 2100N180.1Turbidity 11/14/2021
Lab ID: ALTP410084
Valid UntilInstrumentMethodAnalyte
NORTH TEXAS MWD TAWAKONINAAccreditation ID:
TX1290052(972) 551-1337Phone Number:Justin ScrewsContact Name:
Approval Date: 11/01/2018
Buret2320BAlkalinity 11/01/2021
Hach Amperometric Model 19299-00
4500CLO2-EChlorine Dioxide 11/01/2021
Hach Amperometric Model 19299-00
4500CLO2-EChlorite (at EP) 11/01/2021
Hach DR 890HACH 10260Free Chlorine 11/01/2021
Orion Dual Star pH/ISE Benchtop4500H-BpH 11/01/2021
Orion Dual Star pH/ISE Benchtop2550Temperature 11/01/2021
Hach DR 890HACH 10260Total Chlorine 11/01/2021
Hach 2100N Turbidimeter180.1Turbidity 11/01/2021
Lab ID: ALTP14985
Valid UntilInstrumentMethodAnalyte
NORTHEAST TEXAS MWD - TANNER SWTP NAAccreditation ID:
TX1580065(903) 353-2510Phone Number:Dominik SobierajContact Name:
Approval Date: 04/27/2021
Amperometric Titration2320BAlkalinity 04/27/2024
CL17 and DR8504500CL-GFree Chlorine 04/27/2024
Accumet XL 154500H-BpH 04/27/2024
Accumet XL 152550Temperature 04/27/2024
Ana-LabContract LabTOC 04/27/2024
CL17 and DR8504500CL-GTotal Chlorine 04/27/2024
AMI TURBIWELL180.1Turbidity 04/27/2024
Ana-LabContract LabUV254 04/27/2024
Monday, August 2, 2021 Page 137 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP17558
Valid UntilInstrumentMethodAnalyte
NORTHEAST TEXAS MWD PITTSBURG PLANT NAAccreditation ID:
TX0320019(903) 353-2510Phone Number:Dominik SobierajContact Name:
Approval Date: 05/03/2021
Amperometric Titration2320BAlkalinity 05/03/2024
CL17 and DR8204500CL-GFree Chlorine 05/03/2024
Accumet XL 154500H-BpH 05/03/2024
Certified Thermometer2550Temperature 05/03/2024
Ana-LabContract LabTOC 05/03/2024
CL17 and DR8204500CL-GTotal Chlorine 05/03/2024
1720E and 2100N180.1Turbidity 05/03/2024
Ana-LabContract LabUV254 05/03/2024
Lab ID: AL2390043
Valid UntilInstrumentMethodAnalyte
NORTHEAST WASHINGTON COUNTYNAAccreditation ID:
TX2390043(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 04/14/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 04/14/2024
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 04/14/2024
Lab ID: AL1011649
Valid UntilInstrumentMethodAnalyte
NORTHWEST HARRIS COUNTY MUD 10 NAAccreditation ID:
TX1011649(713) 395-3100Phone Number:Gregory CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL1011600
Valid UntilInstrumentMethodAnalyte
NORTHWEST HARRIS COUNTY MUD 15 NAAccreditation ID:
TX1011600(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1011998
Valid UntilInstrumentMethodAnalyte
NORTHWEST HARRIS COUNTY MUD 20 NAAccreditation ID:
TX1011998(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/02/2023
Lab ID: AL1012293
Valid UntilInstrumentMethodAnalyte
NORTHWEST HARRIS COUNTY MUD 29 NAAccreditation ID:
TX1012293(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Lab ID: AL1013034
Valid UntilInstrumentMethodAnalyte
NORTHWEST HARRIS COUNTY MUD 32 NAAccreditation ID:
TX1013034(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Monday, August 2, 2021 Page 138 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0790140
Valid UntilInstrumentMethodAnalyte
NRG TEXAS W A PARISH GAS PLANTNAAccreditation ID:
TX0790140(281) 343-2313Phone Number:William StoeltjeContact Name:
Approval Date: 09/16/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/16/2022
Lab ID: AL0790100
Valid UntilInstrumentMethodAnalyte
NRG W A PARISH ELECTRIC GENERATING STATION NAAccreditation ID:
TX0790100(281) 343-2313Phone Number:William StoeltjeContact Name:
Approval Date: 09/16/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/16/2022
Lab ID: ALTP15006
Valid UntilInstrumentMethodAnalyte
NUECES COUNTY WCID 3NAAccreditation ID:
TX1780005(361) 387-1042Phone Number:David FloresContact Name:
Approval Date: 09/18/2018
Burette Titration2320BAlkalinity 09/18/2021
Titration & AutoCat 90004500CLO2-EChlorine Dioxide 09/18/2021
Titration & AutoCat 90004500CLO2-EChlorite (at EP) 09/18/2021
DR2500 Hach Odyssey4500CL-GFree Chlorine 09/18/2021
DR2500 Hach Odyssey4500H-BpH 09/18/2021
DR2500 Hach Odyssey2550Temperature 09/18/2021
LCRAContract LabTOC 09/18/2021
DR2500 Hach Odyssey4500CL-GTotal Chlorine 09/18/2021
2100N Turbidimeter Hach2130BTurbidity 09/18/2021
Lab ID: ALTP1263
Valid UntilInstrumentMethodAnalyte
OAK BEND ESTATES WTPNAAccreditation ID:
TX0200146(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 07/01/2019
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 07/01/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 07/01/2022
Lab ID: AL2470009
Valid UntilInstrumentMethodAnalyte
OAK HILLS WSCNAAccreditation ID:
TX2470009(830) 393-7739Phone Number:Richard DemmerContact Name:
Approval Date: 09/01/2020
Hach Pocket 24500CL-GFree Chlorine 09/01/2023
Monday, August 2, 2021 Page 139 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2270060
Valid UntilInstrumentMethodAnalyte
OAK SHORES WATER SYSTEMNAAccreditation ID:
TX2270060(512) 791-6710Phone Number:William AbshireContact Name:
Approval Date: 07/01/2019
Hach Digital Titrator2320BAlkalinity 07/01/2022
Hach Pocket Colorimeter4500CL-GFree Chlorine 07/01/2022
Hach Sension +4500H-BpH 07/01/2022
Glass Laboratory Thermometer2550Temperature 07/01/2022
Aqua-Tech LaboratoryContract LabTOC 07/01/2022
Hach Pocket Colorimeter4500CL-GTotal Chlorine 07/01/2022
HF Scientific Micro 100 Turbidimeter
180.1Turbidity 07/01/2022
Lab ID: AL1011181
Valid UntilInstrumentMethodAnalyte
OHMSTEDENAAccreditation ID:
TX1011181(832) 492-3131Phone Number:Jorge F. AguirreContact Name:
Approval Date: 05/07/2019
Hach Pocket Pro 9531000150.1pH 05/07/2022
Hach Pocket Pro 95310002550Temperature 05/07/2022
Lab ID: AL1700666
Valid UntilInstrumentMethodAnalyte
OLD EGYPT SUBDIVISIONNAAccreditation ID:
TX1700666(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 06/14/2019
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 06/14/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 06/14/2022
Lab ID: AL0670020
Valid UntilInstrumentMethodAnalyte
OLDEN WSCNAAccreditation ID:
TX0670020(254) 653-2222Phone Number:Sy MitchellContact Name:
Approval Date: 10/22/2020
DR 9004500CL-GFree Chlorine 10/22/2023
Oakton PH Tester150.1pH 10/22/2023
Oakton2550Temperature 10/22/2023
DR 9004500CL-GTotal Chlorine 10/22/2023
Monday, August 2, 2021 Page 140 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14754
Valid UntilInstrumentMethodAnalyte
OLMITO WATER PLANT LABORATORY NAAccreditation ID:
TX0310026(956) 350-4099Phone Number:Ray VegaContact Name:
Approval Date: 10/15/2018
Titration Method2320BAlkalinity 10/15/2021
AutoCAT 90004500CLO2-EChlorine Dioxide 10/15/2021
AutoCAT 90004500CLO2-EChlorite (at EP) 10/15/2021
Pocket Colorimeter ll4500CL-DFree Chlorine 10/15/2021
Hach SensION+ph34500H-BpH 10/15/2021
Hach SensION+ph32550Temperature 10/15/2021
Contract LabTOC 10/15/2021
Hach CL17 Total Chlorine Analyzer4500CL-GTotal Chlorine 10/15/2021
Hach TU5200 EPA Turbidimeter180.1Turbidity 10/15/2021
Lab ID: AL1810005
Valid UntilInstrumentMethodAnalyte
ORANGE COUNTY WCID 1NAAccreditation ID:
TX1810005(409) 880-2710Phone Number:David LejuneContact Name:
Approval Date: 08/10/2018
Oakton4500H-BpH 08/10/2021
Oakton2550Temperature 08/10/2021
Lab ID: AL0520003
Valid UntilInstrumentMethodAnalyte
OXY USA BLOCK 31 GAS PLANTNAAccreditation ID:
TX0520003(432) 558-4809Phone Number:Steven BellContact Name:
Approval Date: 03/05/2020
Apera PH20150.3pH 03/05/2023
Apera PH202550Temperature 03/05/2023
Lab ID: AL1040017
Valid UntilInstrumentMethodAnalyte
PAINT CREEK WSCNAAccreditation ID:
TX1040017(325) 773-3319Phone Number:Kendell MedfordContact Name:
Approval Date: 04/22/2019
Hach DR900HACH 10260Free Chlorine 04/22/2022
Hach DR900HACH 10260Total Chlorine 04/22/2022
Lab ID: ALTP14967
Valid UntilInstrumentMethodAnalyte
PARADISE POINT SUBDIVISION - LK BUCHANAN SWTP NAAccreditation ID:
TX1500008(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 05/25/2021
Titration2320BAlkalinity 05/25/2024
Hach Colorimeter II4500CL-GFree Chlorine 05/25/2024
Hach Sension4500H-BpH 05/25/2024
Hach Sension2550Temperature 05/25/2024
Hach CL-174500CL-GTotal Chlorine 05/25/2024
Hach Colorimeter II4500CL-GTotal Chlorine 05/25/2024
Hach 1720B180.1Turbidity 05/25/2024
Hach 2100P180.1Turbidity 05/25/2024
Monday, August 2, 2021 Page 141 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0790293
Valid UntilInstrumentMethodAnalyte
PARKS FRESNO FOOD MARKETNAAccreditation ID:
TX0790293(281) 825-1018Phone Number:Yoon Hee ParkContact Name:
Approval Date: 09/18/2020
Hach Color Wheel4500CL-GFree Chlorine 09/18/2021
Lab ID: ALTP19622
Valid UntilInstrumentMethodAnalyte
PARKSHORE WTP LABNAAccreditation ID:
TX0460019(830) 312-4600Phone Number:Chelsea HawkinsContact Name:
Approval Date: 11/27/2018
Hach Digital Titrator2320BAlkalinity 11/27/2021
Hach AT 1000, Hach DR 50004500CLO2-EChlorine Dioxide 11/27/2021
Hach AT 10004500CLO2-EChlorite (at EP) 11/27/2021
Hach CL17, Hach DR 50004500CL-GFree Chlorine 11/27/2021
Hach HQ30D, SC100, DPDP3, DPD1P1
150.1pH 11/27/2021
Hach HQ30D, SC100, DPDP3, DPD1P1
2550Temperature 11/27/2021
Hach 1720E, Hach 2100N180.1Turbidity 11/27/2021
Lab ID: AL1810007
Valid UntilInstrumentMethodAnalyte
PCL ARLANXEONAAccreditation ID:
TX1810007(409) 882-2483Phone Number:Kyle GillamContact Name:
Approval Date: 11/06/2019
Hach DR39004500CL-GFree Chlorine 11/06/2022
Ultrameter IID1293-12pH 08/30/2021
Hach Pocket Pro +2550Temperature 08/30/2021
Lab ID: AL1012321
Valid UntilInstrumentMethodAnalyte
PEACHLEAF PARKNAAccreditation ID:
TX1012321(713) 540-1084Phone Number:Jerek MigginsContact Name:
Approval Date: 12/07/2018
Jellas pH Meter4500H-BpH 12/07/2021
Thermometer2550Temperature 12/07/2021
Hach Pocket Colorimeter4500CL-GTotal Chlorine 12/07/2021
Lab ID: AL0100059
Valid UntilInstrumentMethodAnalyte
PECAN GROVENAAccreditation ID:
TX0100059(830) 796-5060Phone Number:Rex KennedyContact Name:
Approval Date: 06/03/2021
DR 300 Colorimeter4500CL-GFree Chlorine 06/03/2024
Hach Pocket Pro +4500H-BpH 06/03/2024
Hach Pocket Pro +2550Temperature 06/03/2024
Lab ID: AL0940098
Valid UntilInstrumentMethodAnalyte
PECAN GROVE MOBILE HOME PARKNAAccreditation ID:
TX0940098(210) 658-6271Phone Number:Lisa ParryContact Name:
Approval Date: 09/21/2020
Hach DR3004500CL-GFree Chlorine 09/21/2023
Monday, August 2, 2021 Page 142 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0790132
Valid UntilInstrumentMethodAnalyte
PECAN GROVE MUDNAAccreditation ID:
TX0790132(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 03/25/2021
Hach Digital Titrator Model2320BAlkalinity 03/25/2024
Hach AutoCAT 9000 Chlorine Amp.4500CLO2-EChlorine Dioxide 03/25/2024
KemioCHLORDIOX PLUSChlorine Dioxide 03/25/2024
Hach Pocket Colorimeter4500CL-DFree Chlorine 03/25/2024
Hach HQ440 Benchtop Dual Inputintel
4500H-BpH 03/25/2024
Hach AutoCAT 9000 Chlorine Amp.4500CLO2-EPOE Chlorite 03/25/2024
KemioCHLORDIOX PLUSPOE Chlorite 03/25/2024
Hach HQ440 Benchtop Dual Inputintel
2550Temperature 03/25/2024
Envirodyne LaboratoriesContract LabTOC 03/25/2024
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 03/25/2024
Hach 1720E Low Range Turbidimeter
2130BTurbidity 03/25/2024
Hach DR60005910BUV254 03/25/2024
Lab ID: AL1540019
Valid UntilInstrumentMethodAnalyte
PERMIAN FRAC SANDNAAccreditation ID:
TX1540019(254) 485-0973Phone Number:Jim Bob BerryContact Name:
Approval Date: 12/06/2018
Oakton AO 35613-22 pH 6+4500H-BpH 12/06/2021
Oakton AO 35613-22 pH 6+2550Temperature 12/06/2021
Lab ID: AL1190007
Valid UntilInstrumentMethodAnalyte
PERRIN WHITT ISDNAAccreditation ID:
TX1190007(940) 798-2020Phone Number:James TuckerContact Name:
Approval Date: 07/01/2020
Hach Chlorine Pocket Colorimeter II
4500CL-GFree Chlorine 07/01/2023
Lab ID: AL1010078
Valid UntilInstrumentMethodAnalyte
PITCAIRN WSCNAAccreditation ID:
TX1010078(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Monday, August 2, 2021 Page 143 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0950004
Valid UntilInstrumentMethodAnalyte
PLAINVIEW MUNICIPAL WATER SYSTEM NAAccreditation ID:
TX0950004(806) 774-1205Phone Number:Paul KiteContact Name:
Approval Date: 05/18/2021
Ana-LabContract LabAlkalinity 05/18/2024
Hach DR39004500CL-GFree Chlorine 05/18/2024
Pocket Colorimeter II4500CL-GFree Chlorine 05/18/2024
Hach Titralab AT10004500H-BpH 05/18/2024
HQ411d4500H-BpH 05/18/2024
Hach Titralab AT10002550Temperature 05/18/2024
HQ411d2550Temperature 05/18/2024
Ana-LabContract LabTOC 05/18/2024
Hach TU5300SC2130BTurbidity 05/18/2024
TU52002130BTurbidity 05/18/2024
Lab ID: AL1400013
Valid UntilInstrumentMethodAnalyte
PLANT X POWER PLANTNAAccreditation ID:
TX1400013(806) 272-8028Phone Number:Patty HillContact Name:
Approval Date: 06/03/2021
Plant X Chlorine Meter4500CL-GFree Chlorine 06/03/2024
Lab ID: AL0870013
Valid UntilInstrumentMethodAnalyte
PNR MIDKIFF OFFICENAAccreditation ID:
TX0870013(432) 312-8024Phone Number:Erik CoxContact Name:
Approval Date: 08/06/2020
Hach Colorimeter II4500CL-GFree Chlorine 08/06/2023
Lab ID: AL1650163
Valid UntilInstrumentMethodAnalyte
PNR MIDLAND CREW CAMPNAAccreditation ID:
TX1650163(432) 312-8024Phone Number:Erik CoxContact Name:
Approval Date: 02/11/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 02/11/2022
Lab ID: AL1650162
Valid UntilInstrumentMethodAnalyte
PNR MOBILE HOME PARKNAAccreditation ID:
TX1650162(432) 312-8024Phone Number:Erik CoxContact Name:
Approval Date: 02/24/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 02/24/2024
Lab ID: ALTP3122
Valid UntilInstrumentMethodAnalyte
PONDER ACRES WATER SYSTEMNAAccreditation ID:
TX0610201(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 01/31/2019
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 01/31/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 01/31/2022
Monday, August 2, 2021 Page 144 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP13371
Valid UntilInstrumentMethodAnalyte
PORT ADVENTURE WTPNAAccreditation ID:
TX2280031(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 04/08/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 04/08/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 04/08/2023
Lab ID: AL1010631
Valid UntilInstrumentMethodAnalyte
POSTWOOD MUDNAAccreditation ID:
TX1010631(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL1010467
Valid UntilInstrumentMethodAnalyte
PRESTONWOOD FOREST UTILITY DISTRICT NAAccreditation ID:
TX1010467(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/19/2023
Lab ID: AL0007763
Valid UntilInstrumentMethodAnalyte
PROFESSIONAL UTILITY SERVICES, INC NAAccreditation ID:
NA(281) 312-9908Phone Number:Clint SuttonContact Name:
Approval Date: 08/21/2018
Oakton 150 pH/Temp Electrode2320BAlkalinity 08/21/2021
HACH Pocket Colorimeter II4500CL-GFree Chlorine 08/21/2021
HACH DR39004500P-EOrthophosphate 08/21/2021
Oakton 150 pH/Temp Electrode150.1pH 08/21/2021
Oakton 150 pH/Temp Electrode2550Temperature 08/21/2021
HACH Pocket Colorimeter II4500CL-GTotal Chlorine 08/21/2021
HACH 2100N Benchtop Turbidimeter
180.1Turbidity 08/21/2021
Lab ID: AL0270078
Valid UntilInstrumentMethodAnalyte
QUAIL CREEK SUBDIVISIONNAAccreditation ID:
TX0270078(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 04/14/2021
Hach Pocket Colorimeter/CL-174500CL-HFree Chlorine 04/14/2024
Monday, August 2, 2021 Page 145 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1020096
Valid UntilInstrumentMethodAnalyte
QUAIL LANE RV RENTALNAAccreditation ID:
TX1020096(903) 526-5100Phone Number:Douglas CoursonContact Name:
Approval Date: 11/09/2020
Ana-Lab CorporationContract LabAlkalinity 11/09/2021
Ana-Lab CorporationContract LabCalcium 11/09/2021
Ana-Lab CorporationContract LabConductivity 11/09/2021
DR900 ColorimeterHACH 10260Free Chlorine 11/09/2021
Ana-Lab CorporationContract LabpH 11/09/2021
Ana-Lab CorporationContract LabPhosphate 11/09/2021
Ana-Lab CorporationContract LabPOE Chlorite 11/09/2021
Ana-Lab CorporationContract LabSilica 11/09/2021
Ana-Lab CorporationContract LabTOC 11/09/2021
DR900 ColorimeterHACH 10260Total Chlorine 11/09/2021
Ana-Lab CorporationContract LabTurbidity 11/09/2021
Ana-Lab CorporationContract LabUV254 11/09/2021
Lab ID: AL0790028
Valid UntilInstrumentMethodAnalyte
QUAIL VALLEY UTILITY DISTRICTNAAccreditation ID:
TX0790028(281) 499-5539Phone Number:Leonard HansenContact Name:
Approval Date: 03/29/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 03/29/2022
Oakton PHTESTER4500H-BpH 03/29/2022
Oakton PHTESTER2550Temperature 03/29/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 03/29/2022
Lab ID: AL0610277
Valid UntilInstrumentMethodAnalyte
RANCH 380 RV PARKNAAccreditation ID:
TX0610277(940) 600-2799Phone Number:Alfred FondrenContact Name:
Approval Date: 01/07/2020
Hanna H1901HACH 10260Free Chlorine 01/07/2023
Monday, August 2, 2021 Page 146 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0008484
Valid UntilInstrumentMethodAnalyte
RED RIVER AUTHORITY OF TEXASNAAccreditation ID:
(940) 723-8697Phone Number:Ron MullinsContact Name:
Approval Date: 06/04/2021
Titration2320BAlkalinity 06/04/2022
KemioCHLORDIOX PLUSChlorine Dioxide 06/04/2022
CL174500CL-FFree Chlorine 06/04/2022
Pocket Colorimeter II4500CL-FFree Chlorine 06/04/2022
Hach DR9004500CL-FFree Chlorine 06/04/2022
Hach HQ11D4500H-BpH 06/04/2022
A&B LaboratoryContract LabTOC 06/04/2022
Pocket Colorimeter II4500CL-GTotal Chlorine 06/04/2022
CL174500CL-GTotal Chlorine 06/04/2022
Hach DR9004500CL-GTotal Chlorine 06/04/2022
2100N2130BTurbidity 06/04/2022
Hach 1720E2130BTurbidity 06/04/2022
Lab ID: AL0270081
Valid UntilInstrumentMethodAnalyte
RIDGE HARBORNAAccreditation ID:
TX0270081(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 05/26/2021
Titration2320BAlkalinity 05/26/2024
Hach Colorimeter II4500CL-GFree Chlorine 05/26/2024
Hach HQ11D150.1pH 05/26/2024
Hach HQ11D2550Temperature 05/26/2024
ATI Q 464500CL-DTotal Chlorine 05/26/2024
Hach 2100P180.1Turbidity 05/26/2024
Hach TU 5300180.1Turbidity 05/26/2024
Lab ID: AL0790359
Valid UntilInstrumentMethodAnalyte
RIVER CITY RV PARKNAAccreditation ID:
TX0790359(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 04/03/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 04/03/2023
Lab ID: ALTP15079
Valid UntilInstrumentMethodAnalyte
RIVER OAKS WTP LABNAAccreditation ID:
TX2200069(817) 626-5421Phone Number:Marvin C. Gregory IIIContact Name:
324
Approval Date: 04/02/2019
DR 39004500CL-GFree Chlorine 04/02/2022
Hach Sension Plus PH 314500H-BpH 04/02/2022
DR 39004500CL-GTotal Chlorine 04/02/2022
Gelex Secondary Turbidity Standard Kit
180.1Turbidity 04/02/2022
Monday, August 2, 2021 Page 147 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0190021
Valid UntilInstrumentMethodAnalyte
RIVERBEND WATER RESOURCES DISTRICT NAAccreditation ID:
TX0190021(903) 831-0091Phone Number:Eli HuntContact Name:
Approval Date: 12/12/2019
Hach Chlorine Pocket Colorimeter II
HACH 10260Free Chlorine 12/12/2022
Hach Chlorine Pocket Colorimeter II
HACH 10260Total Chlorine 12/12/2022
Lab ID: AL1012912
Valid UntilInstrumentMethodAnalyte
ROHM & HAAS ENGINEERING BUILDING NAAccreditation ID:
TX1012912(832) 260-7039Phone Number:Dusty LucasContact Name:
Approval Date: 10/10/2019
HACH Pocket Colorimeter4500CL-GFree Chlorine 10/10/2022
Symphony SB70P4500H-BpH 10/10/2022
Ertco Thermometer2550Temperature 10/10/2022
Lab ID: AL1011717
Valid UntilInstrumentMethodAnalyte
ROHM & HAAS TX DEER PARKNAAccreditation ID:
TX1011717(281) 228-8160Phone Number:Michael SnyderContact Name:
Approval Date: 11/12/2020
A&B LabsContract LabAlkalinity 11/12/2023
SGSContract LabAlkalinity 11/12/2023
A&B LabsContract LabCalcium 11/12/2023
SGSContract LabCalcium 11/12/2023
SGSContract LabConductivity 11/12/2023
A&B LabsContract LabConductivity 11/12/2023
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 11/12/2023
A&B LabsContract LabHardness 11/12/2023
Hach Pocket Colorimeter II365.1Orthophosphate 11/12/2023
Hanna 9125150.1pH 11/12/2023
Hanna 91252550Temperature 11/12/2023
Hach Pocket Colorimeter DR3004500CL-GTotal Chlorine 11/12/2023
Lab ID: AL0002451
Valid UntilInstrumentMethodAnalyte
Ruben AriasNAAccreditation ID:
(806) 674-4834Phone Number:Ruben AriasContact Name:
Approval Date: 01/21/2021
Hach Pocket Pro150.1pH 01/21/2022
Hach Pocket Pro2550Temperature 01/21/2022
Lab ID: AL0160019
Valid UntilInstrumentMethodAnalyte
RUST RANCH WATER SUPPLYNAAccreditation ID:
TX0160019(830) 312-4600Phone Number:Adam GonzalesContact Name:
Approval Date: 01/29/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/29/2024
Monday, August 2, 2021 Page 148 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1040015
Valid UntilInstrumentMethodAnalyte
SAGERTON WSCNAAccreditation ID:
TX1040015(325) 665-2980Phone Number:Linda ThaxtonContact Name:
Approval Date: 03/28/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 03/28/2022
HACH Pocket Colorimeter II4500CL-GTotal Chlorine 03/28/2022
Lab ID: AL2270144
Valid UntilInstrumentMethodAnalyte
SAIL HAVENNAAccreditation ID:
TX2270144(512) 472-3037Phone Number:Ken JordanContact Name:
Approval Date: 09/03/2020
Manual Titration2320BAlkalinity 09/03/2023
Hach SensION -Ph3150.1pH 09/03/2023
Hach SensION -pH32550Temperature 09/03/2023
Aqua-TechContract LabTOC 09/03/2023
Hach CL-17, Hach DR3004500CL-DTotal Chlorine 09/03/2023
Hach 2100Q, 1720C, 1720E180.1Turbidity 09/03/2023
Lab ID: AL2270281
Valid UntilInstrumentMethodAnalyte
SAINT ALBANS EPISCOPAL CHURCHNAAccreditation ID:
TX2270281(512) 844-1363Phone Number:Don PittsContact Name:
Approval Date: 07/28/2021
HACH DR3004500CL-FTotal Chlorine 07/28/2024
Lab ID: AL0150588
Valid UntilInstrumentMethodAnalyte
SAN ANTONIO MILITARY MEDICAL CENTER NAAccreditation ID:
TX0150588(210) 452-5828Phone Number:Fred WilsonContact Name:
Approval Date: 07/30/2020
PALINTESTCHLORDIOX PLUSChlorine Dioxide 07/30/2023
PALINTESTCHLORDIOX PLUSPOE Chlorite 07/30/2023
Lab ID: 48163
Valid UntilInstrumentMethodAnalyte
SAN ANTONIO WATER SYSTEMT104704324Accreditation ID:
TX0150018(210) 233-3536Phone Number:Scott HaltyContact Name:
Approval Date: 07/26/2021
Metrohm 855 Titrosampler2320BAlkalinity 12/31/2021
Thermo ICP iCAP 6000 and 7000200.7Calcium 12/31/2021
Metrohm 855 Titrosampler2510BConductivity 12/31/2021
Hach DR9004500CL-GFree Chlorine 12/31/2021
Thermo iCAP 6000 and 70002340BHardness 12/31/2021
YSI Pro10304500H-BpH 12/31/2021
YSI Pro10302550Temperature 12/31/2021
Hach Turbidimeter 2100N180.1Turbidity 12/31/2021
Monday, August 2, 2021 Page 149 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2050011
Valid UntilInstrumentMethodAnalyte
SAN PATRICIO MWDNAAccreditation ID:
TX2050011(361) 643-6521Phone Number:Teresa Arnold MayorgaContact Name:
Approval Date: 12/13/2018
Test America Inc.Contract LabAlkalinity 12/13/2021
Test America Inc.Contract LabCalcium 12/13/2021
Amperometric Fischer Porter4500CLO2-CChlorine Dioxide 12/13/2021
Eurofins Eaton AnalyticalContract LabChlorite (at EP) 12/13/2021
Test America Inc.Contract LabConductivity 12/13/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/13/2021
Test America Inc.Contract LabHardness 12/13/2021
Orion Star A2154500H-BpH 12/13/2021
Test America Inc.Contract LabPhosphate 12/13/2021
Test America Inc.Contract LabSilica 12/13/2021
Control Company2550Temperature 12/13/2021
Water Utilities Lab - City of Corpus Christi
Contract LabTOC 12/13/2021
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 12/13/2021
Hach 21002130BTurbidity 12/13/2021
Hach DR 50005910BUV254 12/13/2021
Lab ID: AL2330064
Valid UntilInstrumentMethodAnalyte
SAN PEDRO WATER RESOURCESNAAccreditation ID:
TX2330064(830) 719-1186Phone Number:Kenneth VaughanContact Name:
Approval Date: 06/29/2021
Hach Colorimeter II4500CL-GFree Chlorine 06/29/2024
Lab ID: AL0210065
Valid UntilInstrumentMethodAnalyte
SANDERSON FARMS BRYAN FACILITYNAAccreditation ID:
TX0210065(979) 218-1023Phone Number:Joey DerkowskiContact Name:
Approval Date: 04/09/2019
Hach DR 900HACH 10241Free Chlorine 04/09/2022
Lab ID: AL1980025
Valid UntilInstrumentMethodAnalyte
SANDERSON FARMS FRANKLIN FACILITY NAAccreditation ID:
TX1980025(979) 324-1224Phone Number:Chad LedetContact Name:
Approval Date: 05/29/2019
Hach DR 300HACH 10241Free Chlorine 05/29/2022
Lab ID: AL0810041
Valid UntilInstrumentMethodAnalyte
SANDERSON FARMS OAKWOOD FACILITY NAAccreditation ID:
TX0810041(903) 724-3738Phone Number:William KiserContact Name:
Approval Date: 04/09/2019
Hach Pocket Meter IIHACH 10241Free Chlorine 04/09/2022
Lab ID: AL0010061
Valid UntilInstrumentMethodAnalyte
SANDERSON FARMS PALESTINE FACILITY NAAccreditation ID:
TX0010061(903) 922-2244Phone Number:Michael ReedContact Name:
Approval Date: 04/09/2019
Hach DR900HACH 10241Free Chlorine 04/09/2022
Monday, August 2, 2021 Page 150 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2120111
Valid UntilInstrumentMethodAnalyte
SANDERSON FARMS TYLER PROCESSING NAAccreditation ID:
TX2120111(903) 335-0011Phone Number:David ChandlerContact Name:
Approval Date: 04/09/2019
Hach DR 900HACH 10241Free Chlorine 04/09/2022
Lab ID: AL1550141
Valid UntilInstrumentMethodAnalyte
SANDERSON FARMS WACO FACILITYNAAccreditation ID:
TX1550141(254) 652-5270Phone Number:Corey WhittenContact Name:
Approval Date: 04/09/2019
Hach DR 890HACH 10241Free Chlorine 04/09/2022
Lab ID: AL2270054
Valid UntilInstrumentMethodAnalyte
SANDY CREEK RANCHES SUBDIVISION NAAccreditation ID:
TX2270054(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 05/07/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 05/07/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 05/07/2023
Lab ID: AL1500009
Valid UntilInstrumentMethodAnalyte
SANDY HARBORNAAccreditation ID:
TX1500009(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 06/23/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 06/23/2024
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 06/23/2024
Lab ID: AL0002425
Valid UntilInstrumentMethodAnalyte
SANFORD WATER WORKSNAAccreditation ID:
(830) 278-6820Phone Number:Samantha SanfordContact Name:
Approval Date: 12/18/2020
Phenol Red Indicator SolutionD1293-12pH 12/18/2021
KT Thermo Instant Read 2" Dial Thermometer
2550Temperature 12/18/2021
Lab ID: AL0150045
Valid UntilInstrumentMethodAnalyte
SAWS CASTLE HILLSNAAccreditation ID:
TX0150045(210) 233-3536Phone Number:Scott HaltyContact Name:
Approval Date: 07/26/2021
SAWS Environmental LaboratoryContract LabAlkalinity 07/26/2024
SAWS Environmental LaboratoryContract LabCalcium 07/26/2024
SAWS Environmental LaboratoryContract LabConductivity 07/26/2024
Hach DR9004500CL-GFree Chlorine 07/26/2024
SAWS Environmental LaboratoryContract LabHardness 07/26/2024
YSI Pro10304500H-BpH 07/26/2024
YSI Pro10302550Temperature 07/26/2024
SAWS Environmental LaboratoryContract LabTurbidity 07/26/2024
Monday, August 2, 2021 Page 151 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0150052
Valid UntilInstrumentMethodAnalyte
SAWS GERONIMO FOREST WATER SYSTEM NAAccreditation ID:
TX0150052(210) 233-3536Phone Number:Scott HaltyContact Name:
Approval Date: 07/26/2021
SAWS Environmental LaboratoryContract LabAlkalinity 07/26/2024
SAWS Environmental LaboratoryContract LabCalcium 07/26/2024
SAWS Environmental LaboratoryContract LabConductivity 07/26/2024
Hach DR9004500CL-GFree Chlorine 07/26/2024
SAWS Environmental LaboratoryContract LabHardness 07/26/2024
YSI Pro10304500H-BpH 07/26/2024
YSI Pro10302550Temperature 07/26/2024
SAWS Environmental LaboratoryContract LabTurbidity 07/26/2024
Lab ID: AL0150545
Valid UntilInstrumentMethodAnalyte
SAWS MOUNTAIN LAURELNAAccreditation ID:
TX0150545(210) 233-3536Phone Number:Scott HaltyContact Name:
Approval Date: 07/26/2021
SAWS Environmental LaboratoryContract LabAlkalinity 07/26/2024
SAWS Environmental LaboratoryContract LabCalcium 07/26/2024
SAWS Environmental LaboratoryContract LabConductivity 07/26/2024
Hach DR9004500CL-GFree Chlorine 07/26/2024
SAWS Environmental LaboratoryContract LabHardness 07/26/2024
YSI Pro10304500H-BpH 07/26/2024
YSI Pro10302550Temperature 07/26/2024
SAWS Environmental LaboratoryContract LabTurbidity 07/26/2024
Lab ID: AL0150084
Valid UntilInstrumentMethodAnalyte
SAWS NORTHEASTNAAccreditation ID:
TX0150084(210) 233-3536Phone Number:Scott HaltyContact Name:
Approval Date: 07/26/2021
SAWS Environmental LaboratoryContract LabAlkalinity 07/26/2024
SAWS Environmental LaboratoryContract LabCalcium 07/26/2024
SAWS Environmental LaboratoryContract LabConductivity 07/26/2024
Hach DR9004500CL-GFree Chlorine 07/26/2024
SAWS Environmental LaboratoryContract LabHardness 07/26/2024
YSI Pro10304500H-BpH 07/26/2024
YSI Pro10302550Temperature 07/26/2024
SAWS Environmental LaboratoryContract LabTurbidity 07/26/2024
Monday, August 2, 2021 Page 152 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0150497
Valid UntilInstrumentMethodAnalyte
SAWS TEXAS RESEARCH PARKNAAccreditation ID:
TX0150497(210) 233-3536Phone Number:Scott HaltyContact Name:
Approval Date: 07/26/2021
SAWS Environmental LaboratoryContract LabAlkalinity 07/26/2024
SAWS Environmental LaboratoryContract LabCalcium 07/26/2024
SAWS Environmental LaboratoryContract LabConductivity 07/26/2024
Hach DR9004500CL-GFree Chlorine 07/26/2024
SAWS Environmental LaboratoryContract LabHardness 07/26/2024
YSI Pro10304500H-BpH 07/26/2024
YSI Pro10302550Temperature 07/26/2024
SAWS Environmental LaboratoryContract LabTurbidity 07/26/2024
Lab ID: ALTP14740
Valid UntilInstrumentMethodAnalyte
SEADRIFT COKE PLANTNAAccreditation ID:
TX0290054(361) 551-4579Phone Number:Mary BowdenContact Name:
Approval Date: 04/20/2021
Titration2320BAlkalinity 04/20/2024
DR50004500CL-GFree Chlorine 04/20/2024
Myron L Techpro 24500H-BpH 04/20/2024
Myron L Ultrameter II4500H-BpH 04/20/2024
Myron L Techpro 22550Temperature 04/20/2024
Myron L Ultrameter II2550Temperature 04/20/2024
Pace AnalyticalContract LabTOC 04/20/2024
2100 N Hach2130BTurbidity 04/20/2024
Lab ID: AL2330051
Valid UntilInstrumentMethodAnalyte
SEGURO WATERNAAccreditation ID:
TX2330051(830) 719-1186Phone Number:Kenneth VaughanContact Name:
Approval Date: 06/29/2021
Hach Colorimeter II4500CL-GFree Chlorine 06/29/2024
Lab ID: AL1010205
Valid UntilInstrumentMethodAnalyte
SEQUOIA IMPROVEMENT DISTRICTNAAccreditation ID:
TX1010205(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 09/01/2020
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 09/01/2023
Monday, August 2, 2021 Page 153 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14905
Valid UntilInstrumentMethodAnalyte
SHARYLAND WSC PLANT 1NAAccreditation ID:
TX1080033(956) 585-6081Phone Number:Gerardo GraciaContact Name:
Approval Date: 08/10/2020
Hach HQ411D/Amperometric2320BAlkalinity 08/10/2023
De Nora Capital Control Titrator4500CLO2-CChlorine Dioxide 08/10/2023
De Nora Capital Control Titrator4500CLO2-EChlorite 08/10/2023
Hach DR900/DR3900/SL1000/Pocket II
4500CL-GFree Chlorine 08/10/2023
Hach HQ411D4500H-BpH 08/10/2023
Hach HQ411D2550Temperature 08/10/2023
Pollution Control ServicesContract LabTOC 08/10/2023
Hach DR900/DR3900/SL1000/Pocket II
4500CL-GTotal Chlorine 08/10/2023
Hach 2100AN2130BTurbidity 08/10/2023
Pollution Control ServicesContract LabUV254 08/10/2023
Lab ID: ALTP15184
Valid UntilInstrumentMethodAnalyte
SHARYLAND WSC PLANT 2NAAccreditation ID:
TX1080033(956) 585-6081Phone Number:Gerardo GraciaContact Name:
Approval Date: 08/10/2020
Hach HQ411D/Amperometric2320BAlkalinity 08/10/2023
De Nora Capital Control Titrator4500CLO2-CChlorine Dioxide 08/10/2023
De Nora Capital Control Titrator4500CLO2-EChlorite 08/10/2023
Hach DR900/DR3900/SL1000/Pocket II
4500CL-GFree Chlorine 08/10/2023
Hach HQ411D4500H-BpH 08/10/2023
Hach HQ411D2550Temperature 08/10/2023
Pollution Control ServicesContract LabTOC 08/10/2023
Hach DR900/DR3900/SL1000/Pocket II
4500CL-GTotal Chlorine 08/10/2023
Hach 2100AN2130BTurbidity 08/10/2023
Pollution Control ServicesContract LabUV254 08/10/2023
Monday, August 2, 2021 Page 154 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP18121
Valid UntilInstrumentMethodAnalyte
SHARYLAND WSC PLANT 3NAAccreditation ID:
TX1080033(956) 585-6081Phone Number:Gerardo GraciaContact Name:
Approval Date: 08/10/2020
Hach HQ411D/Amperometric2320BAlkalinity 08/10/2023
De Nora Capital Control Titrator4500CLO2-CChlorine Dioxide 08/10/2023
De Nora Capital Control Titrator4500CLO2-EChlorite 08/10/2023
Hach DR900/DR3900/SL1000/Pocket II
4500CL-GFree Chlorine 08/10/2023
Hach HQ411D4500H-BpH 08/10/2023
Hach HQ411D2550Temperature 08/10/2023
Pollution Control ServicesContract LabTOC 08/10/2023
Hach DR900/DR3900/SL1000/Pocket II
4500CL-GTotal Chlorine 08/10/2023
Hach 2100AN2130BTurbidity 08/10/2023
Pollution Control ServicesContract LabUV254 08/10/2023
Lab ID: AL1080033
Valid UntilInstrumentMethodAnalyte
SHARYLAND WSC WATER LABORATORY NAAccreditation ID:
TX1080033(956) 585-6081Phone Number:Gerardo GraciaContact Name:
Approval Date: 08/10/2020
Hach HQ440D/Amperometric2320BAlkalinity 08/10/2023
Volumetric Titration3500-CA BCalcium 08/10/2023
De Nora Capital Control Titrator4500CLO2-CChlorine Dioxide 08/10/2023
Novachem LabsContract LabChlorite 08/10/2023
Hach HQ440D2510BConductivity 08/10/2023
Hach DR900/DR3900/SL1000/Pocket II
4500CL-GFree Chlorine 08/10/2023
Hach HQ440D4500H-BpH 08/10/2023
Hach HQ440D/Pocket Pro pH2550Temperature 08/10/2023
Pollution Control ServicesContract LabTOC 08/10/2023
Hach DR900/DR3900/SL1000/Pocket II
4500CL-GTotal Chlorine 08/10/2023
Hach TU52002130BTurbidity 08/10/2023
Pollution Control ServicesContract LabUV254 08/10/2023
Lab ID: AL0200619
Valid UntilInstrumentMethodAnalyte
SHIN ETSU SILICONES OF AMERICANAAccreditation ID:
TX0200619(979) 373-7947Phone Number:Kelly StewartContact Name:
Approval Date: 01/19/2021
Hach Model DR24004500CL-GFree Chlorine 01/19/2024
Mettler Toledo Sevin Multi150.1pH 01/19/2024
Hach Model DR2400365.1Phosphate 01/19/2024
Mercury Thermometer2550Temperature 01/19/2024
Monday, August 2, 2021 Page 155 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2530004
Valid UntilInstrumentMethodAnalyte
SIESTA SHORES WCIDNAAccreditation ID:
TX2530004(956) 765-4988Phone Number:Cynthia L. GarzaContact Name:
Approval Date: 07/30/2021
HACH Pocket Colorimeter IIHACH 10260Free Chlorine 07/30/2024
HACH Sension I150.1pH 07/30/2024
HACH Sension pH32550Temperature 07/30/2024
ChemtexContract LabTOC 07/30/2024
HACH Pocket Colorimeter IIHACH 10260Total Chlorine 07/30/2024
HACH 1720E180.1Turbidity 07/30/2024
ChemtexContract LabUV254 07/30/2024
Lab ID: AL2200359
Valid UntilInstrumentMethodAnalyte
SILVER CREEK PLAZANAAccreditation ID:
TX0200359(817) 980-8808Phone Number:Victor VestraeteContact Name:
Approval Date: 07/09/2020
Hach Pocket Colorimeter4500CL-GFree Chlorine 07/09/2023
Hach Pocket Colorimeter4500CL-GTotal Chlorine 07/09/2023
Lab ID: AL0270021
Valid UntilInstrumentMethodAnalyte
SILVER CREEK VILLAGE WSCNAAccreditation ID:
TX0270021(512) 306-4002Phone Number:Ryan DorthContact Name:
Approval Date: 05/07/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 05/07/2022
Hach HQ11d150.1pH 05/07/2022
H-B Instrument Thermometer2550Temperature 05/07/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 05/07/2022
Lab ID: ALTP410875
Valid UntilInstrumentMethodAnalyte
SJRA GRP SW TREATMENT PLANTNAAccreditation ID:
TX1700822(936) 828-3856Phone Number:Ron McCulloughContact Name:
Approval Date: 04/20/2020
Titration2320Alkalinity 04/20/2023
Eastex LabsContract LabCalcium 04/20/2023
Eastex LabsContract LabConductivity 04/20/2023
HACH PCII4500CL-FFree Chlorine 04/20/2023
HACH PCII4500CL-GFree Chlorine 04/20/2023
Eastex LabsContract LabHardness 04/20/2023
HACH HQ 4404500H-BpH 04/20/2023
HACH HQ 4402550Temperature 04/20/2023
Shimadzu TOC-L5310BTOC 04/20/2023
HACH 2100N2130BTurbidity 04/20/2023
HACH DR 60005910BUV254 04/20/2023
Monday, August 2, 2021 Page 156 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0460246
Valid UntilInstrumentMethodAnalyte
SJWTX GLENWOOD SUBDIVISIONNAAccreditation ID:
TX0460246(830) 312-4600Phone Number:Adam GonzalesContact Name:
Approval Date: 01/29/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/29/2024
Lab ID: AL0460235
Valid UntilInstrumentMethodAnalyte
SJWTX NORTH POINT SUBDIVISIONNAAccreditation ID:
TX0460235(830) 312-4600Phone Number:Adam GonzalesContact Name:
Approval Date: 01/29/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/29/2024
Lab ID: AL0460172
Valid UntilInstrumentMethodAnalyte
SJWTX TRIPLE PEAK PLANTNAAccreditation ID:
TX0460172(830) 312-4600Phone Number:Laura GloriaContact Name:
Approval Date: 10/27/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 10/27/2023
Lab ID: ALTP15166
Valid UntilInstrumentMethodAnalyte
SJWTX TRIPLE PEAK PLANT LABNAAccreditation ID:
TX0460172(830) 312-4600Phone Number:Chelsea HawkinsContact Name:
Approval Date: 11/27/2018
Hach Digital Titrator2320BAlkalinity 11/27/2021
Hach AutoCat 9000, Hach DR 60004500CLO2-EChlorine Dioxide 11/27/2021
Hach AutoCat 90004500CLO2-EChlorite (at EP) 11/27/2021
Hach CL17, Hach DR 60004500CL-GFree Chlorine 11/27/2021
Hach HQ30D, SC100, DPDP3, DPD1P1
150.1pH 11/27/2021
Hach HQ30D, SC100, DPDP3, DPD1P1
2550Temperature 11/27/2021
Hach 1720E, Hach 2100N180.1Turbidity 11/27/2021
Lab ID: AL0130066
Valid UntilInstrumentMethodAnalyte
SKIDMORE WSCNAAccreditation ID:
TX0130066(361) 287-3433Phone Number:Lisa BakerContact Name:
Approval Date: 07/30/2020
Pocket Colorimeter IIHACH 10260Free Chlorine 01/29/2022
Hach DR300 Pocket ColorimeterHACH 10260Free Chlorine 07/30/2023
Lab ID: AL0270017
Valid UntilInstrumentMethodAnalyte
SKYLINE TERRACE SUBDIVISIONNAAccreditation ID:
TX0270017(830) 693-2963Phone Number:Ricky L. RoweContact Name:
Approval Date: 12/09/2020
LCRA ELSContract LabAlkalinity 12/09/2023
LCRA ELSContract LabCalcium 12/09/2023
LCRA ELSContract LabConductivity 12/09/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/09/2023
Oakton pH Testr 304500H-BpH 12/09/2023
Standard Digital Thermometer2550Temperature 12/09/2023
Monday, August 2, 2021 Page 157 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0270045
Valid UntilInstrumentMethodAnalyte
SMITHWICK MILLS COMMUNITYNAAccreditation ID:
TX0270045(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 05/24/2021
Titration2320BAlkalinity 05/24/2024
Hach Colorimeter II4500CL-GFree Chlorine 05/24/2024
Hach HQ11D150.1pH 05/24/2024
Hach HQ11D2550Temperature 05/24/2024
Hach CL 174500CL-GTotal Chlorine 05/24/2024
Hach 2100 P180.1Turbidity 05/24/2024
Hach 1720B180.1Turbidity 05/24/2024
Lab ID: ALTP21398
Valid UntilInstrumentMethodAnalyte
SOMERVELL COUNTY WATER DISTRICT - WHEELE SWTP NAAccreditation ID:
TX2130042 (254) 897-4141Phone Number:James LytleContact Name:
Approval Date: 03/29/2021
Hach Digital Titrator2320BAlkalinity 03/29/2024
Hach CL174500CL-GFree Chlorine 03/29/2024
Hach PH31150.1pH 03/29/2024
Hach 5010 T Probe150.1pH 03/29/2024
Hach PH312550Temperature 03/29/2024
Hach 5010 T Probe2550Temperature 03/29/2024
Hach TU5200180.1Turbidity 03/29/2024
Lab ID: AL0270080
Valid UntilInstrumentMethodAnalyte
SOUTH COUNCIL CREEK 2NAAccreditation ID:
TX0270080(512) 756-4935Phone Number:John TrainorContact Name:
Approval Date: 12/05/2019
HACH - Colorimeter II - MR/HR4500CL-GFree Chlorine 12/05/2022
HACH - Colorimeter II - MR/HR4500CL-GTotal Chlorine 12/05/2022
Lab ID: AL0700043
Valid UntilInstrumentMethodAnalyte
SOUTH ELLIS COUNTY WSCNAAccreditation ID:
TX0700043(972) 483-6885Phone Number:Tony WooldridgeContact Name:
Approval Date: 01/18/2019
Pocket Colorimeter IIHACH 10260Free Chlorine 01/18/2022
Lab ID: AL2020070
Valid UntilInstrumentMethodAnalyte
SOUTH SABINE WSCNAAccreditation ID:
TX2020070(409) 579-4185Phone Number:Ronald ClarkContact Name:
Approval Date: 08/03/2020
Lower Colorado River AuthorityContract LabAlkalinity 08/03/2023
Hach DR300 Pocket Colorimeter4500CL-DFree Chlorine 08/03/2023
Lower Colorado River AuthorityContract LabpH 08/03/2023
Lower Colorado River AuthorityContract LabTurbidity 08/03/2023
Monday, August 2, 2021 Page 158 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP15124
Valid UntilInstrumentMethodAnalyte
SOUTH TAWAKONI WSC WTPNAAccreditation ID:
TX2340019(903) 873-2509Phone Number:Brian BurnsContact Name:
Approval Date: 06/16/2020
Hach Titrator2320BAlkalinity 06/16/2023
Sension + PH3150.1pH 06/16/2023
Sension + PH32550Temperature 06/16/2023
Ana-LabContract LabTOC 06/16/2023
Hach DR9004500CL-GTotal Chlorine 06/16/2023
Hach TU5200HACH 10258Turbidity 06/16/2023
Lab ID: AL0150309
Valid UntilInstrumentMethodAnalyte
SOUTHWEST RESEARCH INSTITUTENAAccreditation ID:
TX0150309(210) 522-6929Phone Number:Taylor HoltContact Name:
Approval Date: 08/31/2018
Endress + Hauser CCE10 with CCS141
4500CL-DFree Chlorine 08/31/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 08/31/2021
Monday, August 2, 2021 Page 159 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0007628
Valid UntilInstrumentMethodAnalyte
SOUTHWEST WATER COMPANYNAAccreditation ID:
(512) 531-6271Phone Number:Chuck BarryContact Name:
Approval Date: 04/22/2021
Hach SL10002320BAlkalinity 04/22/2022
Hach Pocket Colorimeter II4500CL-GFree Chlorine 04/22/2022
Hach Cl-174500CL-GFree Chlorine 04/22/2022
Hach DR9004500CL-GFree Chlorine 04/22/2022
Hach DR3004500CL-GFree Chlorine 04/22/2022
Hach Q411d4500H-BpH 04/22/2022
Hach Pocket Pro & Multi 2 Tester4500H-BpH 04/22/2022
SensION 34500H-BpH 04/22/2022
Oakton pH Tester 1504500H-BpH 04/22/2022
Hach Q40d4500H-BpH 04/22/2022
Hach SL10004500H-BpH 04/22/2022
SensION pH314500H-BpH 04/22/2022
Oakton pH Tester 304500H-BpH 04/22/2022
Hach Pocket Pro4500H-BpH 04/22/2022
Oakton pH Tester 302550Temperature 04/22/2022
Hach temperature Pocket Pro Tester
2550Temperature 04/22/2022
SensION pH312550Temperature 04/22/2022
Hach SL10002550Temperature 04/22/2022
Mercury Thermometer2550Temperature 04/22/2022
Oakton pH Tester 1502550Temperature 04/22/2022
Hach Q411d2550Temperature 04/22/2022
Hach Q40d2550Temperature 04/22/2022
Hach Pocket Pro2550Temperature 04/22/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 04/22/2022
Hach Cl-174500CL-GTotal Chlorine 04/22/2022
Hach DR9004500CL-GTotal Chlorine 04/22/2022
Hach DR3004500CL-GTotal Chlorine 04/22/2022
Hach SC200HACH 10133Turbidity 04/22/2022
Hach TL 2300180.1Turbidity 04/22/2022
Hach 2100N180.1Turbidity 04/22/2022
Hach 1720E180.1Turbidity 04/22/2022
HACH TU53002130BTurbidity 04/22/2022
HACH TU5200HACH 10258Turbidity 04/22/2022
Monday, August 2, 2021 Page 160 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0270011
Valid UntilInstrumentMethodAnalyte
SPICEWOOD BEACHNAAccreditation ID:
TX0270011(512) 306-4002Phone Number:Ryan DorthContact Name:
Approval Date: 09/10/2018
Hand Titrator2320BAlkalinity 09/10/2021
Hach Pocket Colorimeter4500CL-GFree Chlorine 09/10/2021
Hach HQ11D150.1pH 09/10/2021
Hach HQ11D2550Temperature 09/10/2021
Hach Pocket Colorimeter4500CL-GTotal Chlorine 09/10/2021
Hach 2100Q2130BTurbidity 09/10/2021
Lab ID: AL0270118
Valid UntilInstrumentMethodAnalyte
SPICEWOOD ESTATESNAAccreditation ID:
TX0270118(830) 693-2963Phone Number:Ricky L. RoweContact Name:
Approval Date: 12/09/2020
LCRA ELSContract LabAlkalinity 12/09/2023
LCRA ELSContract LabCalcium 12/09/2023
LCRA ELSContract LabConductivity 12/09/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/09/2023
Oakton pH Testr 304500H-BpH 12/09/2023
Standard Digital Thermometer2550Temperature 12/09/2023
Lab ID: AL1013017
Valid UntilInstrumentMethodAnalyte
SPRING WEST MUDNAAccreditation ID:
TX1013017(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Lab ID: AL0940022
Valid UntilInstrumentMethodAnalyte
SPRINGS HILL WSCNAAccreditation ID:
TX0940022(830) 243-8620Phone Number:Michael MedinaContact Name:
Approval Date: 06/04/2021
Hach Alkalinity Drop Test Kit2320BAlkalinity 06/04/2024
Pocket Colorimeter II4500CL-GFree Chlorine 06/04/2024
SensION PH34500H-BpH 06/04/2024
SensION PH32550Temperature 06/04/2024
2100 N Turbidimeter2130BTurbidity 06/04/2024
Lab ID: AL2270018
Valid UntilInstrumentMethodAnalyte
ST STEPHENS EPISCOPAL SCHOOLNAAccreditation ID:
TX2270018(512) 636-4512Phone Number:Bobby ByrdContact Name:
Approval Date: 01/15/2020
Hach Colorimeter DR3004500CL-GTotal Chlorine 01/15/2023
Monday, August 2, 2021 Page 161 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1070249
Valid UntilInstrumentMethodAnalyte
STAY A WHILE RV PARKNAAccreditation ID:
TX1070249(281) 914-1686Phone Number:Randy TiseContact Name:
Approval Date: 10/30/2020
HACH - Colorimeter II - LR/HR4500CL-GFree Chlorine 10/30/2023
HACH - Colorimeter II - LR/HR4500CL-GTotal Chlorine 10/30/2023
Lab ID: ALTP410581
Valid UntilInstrumentMethodAnalyte
STEPHENS REGIONAL SUD WTPNAAccreditation ID:
TX2150007(254) 488-2333Phone Number:Kelvin NickellContact Name:
Approval Date: 08/09/2018
Titration2320BAlkalinity 08/09/2021
Contract LabCalcium 08/09/2021
Hach Pocket Colorimeter II, CL174500CL-GFree Chlorine 08/09/2021
DR 8704500CL-GFree Chlorine 08/09/2021
Hach Sension, Ultrameter III4500H-BpH 08/09/2021
Digital Thermometer2550Temperature 08/09/2021
Contract LabTOC 08/09/2021
Hach Pocket Colorimeter II, CL174500CL-GTotal Chlorine 08/09/2021
DR 8704500CL-GTotal Chlorine 08/09/2021
1720E, 2100N2130BTurbidity 08/09/2021
Filtertrak 660SCHACH 10133Turbidity 08/09/2021
Lab ID: AL0007274
Valid UntilInstrumentMethodAnalyte
STRIKE WATER SERVICESNAAccreditation ID:
NA(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 04/28/2021
Hach Pocket Pro pH Tester150.1pH 04/28/2022
Hach Pocket Pro pH Tester2550Temperature 04/28/2022
Monday, August 2, 2021 Page 162 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP410579
Valid UntilInstrumentMethodAnalyte
SUGAR LAND SWTPNAAccreditation ID:
TX0790005(281) 275-2478Phone Number:Ashley KirkpatrickContact Name:
Approval Date: 12/02/2020
HACH Digital Titrator2320BAlkalinity 12/02/2023
HACH Digital Titrator3500CA-DCalcium 12/02/2023
Palintest ChlordioX PlusCHLORDIOX PLUSChlorine Dioxide 12/02/2023
Hach HQ30D2510BConductivity 12/02/2023
HACH SL10002510BConductivity 12/02/2023
Hach DR9004500CL-GFree Chlorine 12/02/2023
HACH Pocket II Colorimeter4500CL-GFree Chlorine 12/02/2023
HACH SL1000HACH 10260Free Chlorine 12/02/2023
HACH Pocket Pro+4500H-BpH 12/02/2023
HACH HQ40D4500H-BpH 12/02/2023
HACH SL10004500H-BpH 12/02/2023
HACH DR9004500P-EPhosphate 12/02/2023
HACH Pocket II Colorimeter4500P-EPhosphate 12/02/2023
Dionex ICS-2100 Ion Chromatograph
300.0POE Chlorite 12/02/2023
Palintest ChlordioX PlusChlordioXPlusPOE Chlorite 12/02/2023
HACH Pocket Pro+2550Temperature 12/02/2023
HACH SL10002550Temperature 12/02/2023
HACH HQ40D2550Temperature 12/02/2023
A & B Environmental ServicesContract LabTOC 12/02/2023
Hach DR9004500CL-GTotal Chlorine 12/02/2023
HACH Pocket II Colorimeter4500CL-GTotal Chlorine 12/02/2023
HACH SL1000HACH 10260Total Chlorine 12/02/2023
HACH 2100AN180.1Turbidity 12/02/2023
FilterTrak 660HACH 10133Turbidity 12/02/2023
Hach 1720E2130BTurbidity 12/02/2023
HACH TU5200HACH 10258Turbidity 12/02/2023
Lab ID: AL2370119
Valid UntilInstrumentMethodAnalyte
SUMMER BREEZE USA RV PARKNAAccreditation ID:
TX2370119(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 09/10/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/10/2023
Lab ID: AL1630048
Valid UntilInstrumentMethodAnalyte
SUMMIT RIDGENAAccreditation ID:
TX1630048(830) 249-4174Phone Number:Jim BeckerContact Name:
Approval Date: 12/02/2020
Apera PH204500H-BpH 12/02/2023
Apera PH202550Temperature 12/02/2023
Monday, August 2, 2021 Page 163 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0270148
Valid UntilInstrumentMethodAnalyte
SUMMIT SPRINGSNAAccreditation ID:
TX0270148(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 05/27/2021
Hach Colorimeter II4500CL-GFree Chlorine 05/27/2024
Hach Colorimeter II4500CL-GTotal Chlorine 05/27/2024
Lab ID: AL2210015
Valid UntilInstrumentMethodAnalyte
SUN WSCNAAccreditation ID:
TX2210015(325) 928-5406Phone Number:Carlos UgaldeContact Name:
Approval Date: 09/27/2019
SL10004500CL-GTotal Chlorine 09/27/2022
Lab ID: AL1010292
Valid UntilInstrumentMethodAnalyte
SUNBELT FWSD HIGH MEADOWS SUBDIVISION NAAccreditation ID:
TX1010292(281) 367-5511Phone Number:John T MontgomeryContact Name:
Approval Date: 07/27/2020
Hach Pocket Colorimeter / DR3004500CL-GTotal Chlorine 07/27/2023
Lab ID: ALTP8288
Valid UntilInstrumentMethodAnalyte
SUNCHASE SUBDIVISION WTPNAAccreditation ID:
TX1230083(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 07/08/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 07/08/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 07/08/2023
Lab ID: AL0270043
Valid UntilInstrumentMethodAnalyte
SUNSET HILLS SUBDIVISIONNAAccreditation ID:
TX0270043(830) 693-2963Phone Number:Ricky L. RoweContact Name:
Approval Date: 12/09/2020
LCRA ELSContract LabAlkalinity 12/09/2023
LCRA ELSContract LabCalcium 12/09/2023
LCRA ELSContract LabConductivity 12/09/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/09/2023
Oakton pH Testr 304500H-BpH 12/09/2023
Standard Digital Thermometer2550Temperature 12/09/2023
Lab ID: ALTP410877
Valid UntilInstrumentMethodAnalyte
SYBIL LIGHTFOOT WTP LABNAAccreditation ID:
TX0460019(830) 312-4600Phone Number:Chelsea HawkinsContact Name:
Approval Date: 11/27/2018
Hach Digital Titrator2320BAlkalinity 11/27/2021
Hach CL17, Hach DR 50004500CL-GFree Chlorine 11/27/2021
Hach HQ30D150.1pH 11/27/2021
Hach HQ30D2550Temperature 11/27/2021
Rosemount 1056, Hach 2100N180.1Turbidity 11/27/2021
Monday, August 2, 2021 Page 164 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1011093
Valid UntilInstrumentMethodAnalyte
T H WHARTON ELECTRIC GENERATING STATION NAAccreditation ID:
TX1011093(281) 897-2604Phone Number:Mary LarsenContact Name:
Approval Date: 09/05/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 09/05/2022
HACH HQ40d4500H-BpH 09/05/2022
Long Stem Digital Therm. Model 4352
2550Temperature 09/05/2022
HACH Pocket Colorimeter II4500CL-GTotal Chlorine 09/05/2022
Lab ID: AL1290025
Valid UntilInstrumentMethodAnalyte
TALTY SUDNAAccreditation ID:
TX1290025(972) 552-4422Phone Number:Corey TrailContact Name:
Approval Date: 12/22/2020
Hach DR 9004500CL-GFree Chlorine 12/22/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/22/2023
Hach DR 9004500H-BpH 12/22/2023
Laser Gun2550Temperature 12/22/2023
Hach DR 9004500CL-GTotal Chlorine 12/22/2023
Hach CL-174500CL-GTotal Chlorine 12/22/2023
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 12/22/2023
Lab ID: AL1011865
Valid UntilInstrumentMethodAnalyte
TASFIELDNAAccreditation ID:
TX1011865(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 02/28/2019
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/28/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 02/28/2022
Lab ID: ALTP14764
Valid UntilInstrumentMethodAnalyte
TBCD WEST TREATMENT PLANTNAAccreditation ID:
TX0360030(409) 296-3602Phone Number:Mike WillContact Name:
Approval Date: 04/23/2021
HACH DR/9004500CLO2-DChlorine Dioxide 04/23/2024
HACH DR/9004500CL-GFree Chlorine 04/23/2024
SENSION 4150.1pH 04/23/2024
HACH TITRALAB AT10004500CLO2-EPOE Chlorite 04/23/2024
SENSION 42550Temperature 04/23/2024
Eastex Environmental LabContract LabTOC 04/23/2024
HACH DR/9004500CL-GTotal Chlorine 04/23/2024
HACH 2100N180.1Turbidity 04/23/2024
Monday, August 2, 2021 Page 165 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14762
Valid UntilInstrumentMethodAnalyte
TBCD WINNIE STOWELL PLANTNAAccreditation ID:
TX0360002(409) 296-3602Phone Number:Mike WillContact Name:
Approval Date: 04/23/2021
HACH DR/8904500CLO2-DChlorine Dioxide 04/23/2024
HACH DR/8904500CL-GFree Chlorine 04/23/2024
SENSION 4150.1pH 04/23/2024
HACH TITRALAB AT10004500CLO2-EPOE Chlorite 04/23/2024
SENSION 42550Temperature 04/23/2024
Eastex Environmental LabContract LabTOC 04/23/2024
HACH DR/8904500CL-GTotal Chlorine 04/23/2024
HACH 2100AN180.1Turbidity 04/23/2024
Lab ID: AL0900041
Valid UntilInstrumentMethodAnalyte
TDCJ BATEN & JORDAN UNITSNAAccreditation ID:
TX0900041(806) 669-5830Phone Number:Brian BridwellContact Name:
Approval Date: 08/28/2020
Hach S Pocket Colorimeter II4500CL-GFree Chlorine 08/28/2023
Lab ID: AL2410076
Valid UntilInstrumentMethodAnalyte
TENNESSEE GAS PIPELINE EAST BERNARD 17 NAAccreditation ID:
TX2410076(979) 232-4154Phone Number:Brent BuzekContact Name:
Approval Date: 03/25/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 03/25/2023
Hanna HI98129150.1pH 03/25/2023
Lab ID: ALTP14706
Valid UntilInstrumentMethodAnalyte
TEXARKANA WATER UTILITIES - WRIGHT PATMAN WTP NAAccreditation ID:
TX0190004(903) 798-3850Phone Number:Rick BartonContact Name:
Approval Date: 03/15/2021
Buret Titrator2320BAlkalinity 03/15/2024
DeNora Amperometric Titrator4500CLO2-EChlorine Dioxide 03/15/2024
Hach Pocket Colorimeter II4500CL-GFree Chlorine 03/15/2024
Accumet XL 1504500H-BpH 03/15/2024
DeNora Amperometric Titrator4500CLO2-EPOE Chlorite 03/15/2024
Easy Read Traceable Glass Thermometer
2550Temperature 03/15/2024
Ana-Lab CorporationContract LabTOC 03/15/2024
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 03/15/2024
Hach TU5200180.1Turbidity 03/15/2024
Lab ID: AL0008392
Valid UntilInstrumentMethodAnalyte
TEXAS STATE DRINKING WATER CORP NAAccreditation ID:
(281) 221-9582Phone Number:Jack MurrayContact Name:
Approval Date: 09/01/2020
Hach 57800624500CL-GFree Chlorine 09/01/2021
Hach 57800624500CL-GTotal Chlorine 09/01/2021
Monday, August 2, 2021 Page 166 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0008392
Valid UntilInstrumentMethodAnalyte
TEXAS STATE DRINKING WATER CORP. NAAccreditation ID:
(281) 221-9582Phone Number:Jack MurrayContact Name:
Approval Date: 09/01/2020
Hach 981274500H-BpH 09/01/2021
Hach 981282550Temperature 09/01/2021
Lab ID: AL0003955
Valid UntilInstrumentMethodAnalyte
TEXAS WATER WELL SERVICES LLCNAAccreditation ID:
NA(713) 885-8486Phone Number:Mark C. PeralesContact Name:
Approval Date: 20/22/2020
Hach Colorimeter II4500CL-GFree Chlorine 10/22/2021
Hach Colorimeter II4500CL-GTotal Chlorine 10/22/2021
Lab ID: AL0150399
Valid UntilInstrumentMethodAnalyte
THE OAKS WSCNAAccreditation ID:
TX0150399(210) 698-8449Phone Number:James LincolnContact Name:
Approval Date: 08/14/2018
Hach Pocket Colorimeter II4500CL-GFree Chlorine 08/14/2021
Lab ID: AL1930024
Valid UntilInstrumentMethodAnalyte
THE RIDGE AT FRIO RIVER WATER SYSTEM NAAccreditation ID:
TX1930024(830) 275-2811Phone Number:James WallyContact Name:
Approval Date: 07/23/2019
Hach Pocket Pro + Multi 2150.1pH 07/23/2022
Hach Pocket Pro + Multi 22550Temperature 07/23/2022
Lab ID: AL1760002
Valid UntilInstrumentMethodAnalyte
TOLEDO VILLAGE WSCNAAccreditation ID:
TX1760002(409) 698-2100Phone Number:Joshua CulbertContact Name:
Approval Date: 07/02/2020
Hq11d4500H-BpH 07/02/2023
Hq11d2550Temperature 07/02/2023
Lab ID: AL1400025
Valid UntilInstrumentMethodAnalyte
TOLK STATION POWER PLANTNAAccreditation ID:
TX1400025(806) 272-8028Phone Number:Patty HillContact Name:
Approval Date: 06/04/2021
Hach Chlorine Meter #14500CL-GFree Chlorine 06/04/2024
Lab ID: AL2370120
Valid UntilInstrumentMethodAnalyte
TOMBALL FORESTNAAccreditation ID:
TX2370120(281) 221-9582Phone Number:Jack MurrayContact Name:
Approval Date: 09/01/2020
Hach 57800624500CL-GFree Chlorine 09/01/2021
Hach 981274500H-BpH 09/01/2021
Hach 981282550Temperature 09/01/2021
Hach 57800624500CL-GTotal Chlorine 09/01/2021
Monday, August 2, 2021 Page 167 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0002243
Valid UntilInstrumentMethodAnalyte
TOTAL WATER MANAGEMENTNAAccreditation ID:
(817) 599-0511Phone Number:Julian GarciaContact Name:
Approval Date: 01/21/2021
Hach Pocket Pro +150.1pH 01/21/2022
Hach Pocket Pro +2550Temperature 01/21/2022
Lab ID: AL1011559
Valid UntilInstrumentMethodAnalyte
TOWER OAKS SHOPPING CENTERNAAccreditation ID:
TX1011559(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 04/01/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 04/01/2022
Lab ID: AL1840164
Valid UntilInstrumentMethodAnalyte
TOWN OF ANNETTANAAccreditation ID:
TX1840164(817) 441-5770Phone Number:Glenn KincaidContact Name:
Approval Date: 02/05/2021
Hach DR3004500CL-GFree Chlorine 02/05/2022
Hach Pocket Pro +150.1pH 02/05/2022
Hach Pocket Pro +2550Temperature 02/05/2022
Hach DR3004500CL-GTotal Chlorine 02/05/2022
Lab ID: AL1840111
Valid UntilInstrumentMethodAnalyte
TOWN OF ANNETTA DEER CREEKNAAccreditation ID:
TX1840111(817) 441-5770Phone Number:Glenn KincaidContact Name:
Approval Date: 02/05/2021
Hach DR3004500CL-GFree Chlorine 02/05/2022
Hach Pocket Pro +150.1pH 02/05/2022
Hach Pocket Pro +2550Temperature 02/05/2022
Hach DR3004500CL-GTotal Chlorine 02/05/2022
Lab ID: AL0610035
Valid UntilInstrumentMethodAnalyte
TOWN OF LITTLE ELMNAAccreditation ID:
TX0610035(972) 377-5554Phone Number:Chris CoxContact Name:
Approval Date: 05/15/2020
Hach DR300 Pocket Colorimeter4500CL-GFree Chlorine 05/15/2023
Hach Pocket Pro pH Tester150.3pH 05/15/2023
Hach DR300 Pocket Colorimeter4500CL-GTotal Chlorine 05/15/2023
Lab ID: AL0610235
Valid UntilInstrumentMethodAnalyte
TOWN OF NORTHLAKENAAccreditation ID:
TX0610235(817) 524-8692Phone Number:Robert Brandon DoughtyContact Name:
Approval Date: 11/19/2019
Hach SL10004500H-BpH 11/19/2022
Hach SL10002550Temperature 11/19/2022
Hach SL1000HACH 10260Total Chlorine 11/19/2022
Monday, August 2, 2021 Page 168 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1010242
Valid UntilInstrumentMethodAnalyte
TPC GROUP HOUSTON PLANTNAAccreditation ID:
TX1010242(713) 475-7756Phone Number:Scott BrechtelContact Name:
Approval Date: 11/12/2020
A&B LabsContract LabAlkalinity 11/12/2023
A&B LabsContract LabCalcium 11/12/2023
A&B LabsContract LabConductivity 11/12/2023
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 11/12/2023
A&B LabsContract LabHardness 11/12/2023
Hanna 9125150.1pH 11/12/2023
Hanna 91252550Temperature 11/12/2023
Hach Pocket Colorimeter DR3004500CL-GTotal Chlorine 11/12/2023
Lab ID: AL1560005
Valid UntilInstrumentMethodAnalyte
TPWD CHOKE CANYON STATE PARK CALLIHAM NAAccreditation ID:
TX1560005(361) 786-3868Phone Number:Orlando GarciaContact Name:
ext. 230
Approval Date: 11/05/2019
HACH Digital Titrator2320BAlkalinity 11/05/2022
HACH Pocket Colorimeter II4500CL-GFree Chlorine 11/05/2022
HACH CL-174500CL-GFree Chlorine 11/05/2022
HACH Sension 24500H-BpH 11/05/2022
HACH Sension2550Temperature 11/05/2022
HACH 1720E180.1Turbidity 11/05/2022
HACH 2100 P180.1Turbidity 11/05/2022
Lab ID: AL1300030
Valid UntilInstrumentMethodAnalyte
TPWD GUADALUPE RIVER STATE PARK NAAccreditation ID:
TX1300030(830) 624-6761Phone Number:Russell MillerContact Name:
Approval Date: 05/26/2021
Hach Digital Titrator2320BAlkalinity 05/26/2024
LaMotte 1200 Colorimeter4500CL-GFree Chlorine 05/26/2024
Hach HQ11d150.1pH 05/26/2024
Hach HQ11d2550Temperature 05/26/2024
Hach 2100Q180.1Turbidity 05/26/2024
Lab ID: AL0100109
Valid UntilInstrumentMethodAnalyte
TPWD HILL COUNTRY SNANAAccreditation ID:
TX0100109(830) 796-4413Phone Number:Donovan BradfordContact Name:
Approval Date: 07/24/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 07/24/2023
Hach DR3004500CL-GFree Chlorine 07/24/2023
Monday, August 2, 2021 Page 169 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2360058
Valid UntilInstrumentMethodAnalyte
TRA HUNTSVILLE REGIONAL WATER SUPPLY NAAccreditation ID:
TX2360058(936) 295-5485Phone Number:Thresa AguayoContact Name:
Approval Date: 03/29/2021
Titration2320BAlkalinity 03/29/2024
Titrator Model 821009U234500CLO2-EChlorine Dioxide 03/29/2024
Titrator Model 821009U234500CL-DFree Chlorine 03/29/2024
HaCH SensION + Ph34500H-BpH 03/29/2024
NovaChemContract LabPOE Chlorite 03/29/2024
Thermometer2550Temperature 03/29/2024
Aqua Tech LabContract LabTOC 03/29/2024
Titrator Model 821009U234500CL-DTotal Chlorine 03/29/2024
HACH TL 23002130BTurbidity 03/29/2024
Lab ID: AL1870129
Valid UntilInstrumentMethodAnalyte
TRA LIVINGSTON REGIONAL WATER SUPPLY NAAccreditation ID:
TX1870129(936) 295-5485Phone Number:Thresa AguayoContact Name:
Approval Date: 03/29/2021
Titration2320BAlkalinity 03/29/2024
Fisher Porter Amp. Tit 17T20004500CLO2-EChlorine Dioxide 03/29/2024
Fisher Porter Amp. Tit 17T20004500CL-GFree Chlorine 03/29/2024
Orion 407A4500H-BpH 03/29/2024
NovaChemContract LabPOE Chlorite 03/29/2024
Thermometer2550Temperature 03/29/2024
Aqua Tech LabContract LabTOC 03/29/2024
Fisher Porter Amp. Tit 17T20004500CL-DTotal Chlorine 03/29/2024
HACH TL23002130BTurbidity 03/29/2024
Lab ID: AL2200199
Valid UntilInstrumentMethodAnalyte
TRA TARRANT COUNTY WATER PROJECT NAAccreditation ID:
TX2200199(817) 267-4226Phone Number:Gary SmithContact Name:
Approval Date: 04/02/2021
TRA-CRWS LabContract LabAlkalinity 04/02/2024
HACH DR39004500CL-GFree Chlorine 04/02/2024
DR60004500CL-GFree Chlorine 04/02/2024
Thermo/Orion Star A2144500H-BpH 04/02/2024
Red Liguid, Non-Mercury2550Temperature 04/02/2024
TRA-CRWS LabContract LabTOC 04/02/2024
DR60004500CL-GTotal Chlorine 04/02/2024
HACH DR39004500CL-GTotal Chlorine 04/02/2024
HACH 1720E2130BTurbidity 04/02/2024
TU53002130BTurbidity 04/02/2024
HACH TU52002130BTurbidity 04/02/2024
TRA-CRWS LabContract LabUV254 04/02/2024
Monday, August 2, 2021 Page 170 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2280032
Valid UntilInstrumentMethodAnalyte
TRA TRINITY COUNTY REGIONALNAAccreditation ID:
TX2280032(936) 295-5485Phone Number:Thresa AguayoContact Name:
Approval Date: 03/29/2021
Hach DR 900 Colorimeter4500CL-DFree Chlorine 03/29/2024
HACH sensION 34500H-BpH 03/29/2024
Thermometer2550Temperature 03/29/2024
Hach DR 900 Colorimeter4500CL-DTotal Chlorine 03/29/2024
HACH TL 2100N2130BTurbidity 03/29/2024
Lab ID: ALTP19655
Valid UntilInstrumentMethodAnalyte
TRAVIS COUNTY WCID 17 - ECK LN MEMBRANE WTP NAAccreditation ID:
TX2270027(512) 801-3785Phone Number:Brad SchwabContact Name:
Approval Date: 06/26/2019
Colormetric Titration BCG/MR2320BAlkalinity 06/26/2022
Hach SL 1000HACH 10260Free Chlorine 06/26/2022
Hach Model HQ40D150.1pH 06/26/2022
Hach PHC101012550Temperature 06/26/2022
Aqua Tech LaboratoriesContract LabTOC 06/26/2022
Hach SL 1000HACH 10260Total Chlorine 06/26/2022
Hach TU5200HACH 10258Turbidity 06/26/2022
Aqua Tech LaboratoriesContract LabUV254 06/26/2022
Lab ID: ALTP410689
Valid UntilInstrumentMethodAnalyte
TRAVIS COUNTY WCID 17 - MANSFIELD MEMBRANE SWTP NAAccreditation ID:
TX2270027(512) 801-3785Phone Number:Brad SchwabContact Name:
Approval Date: 06/26/2019
Colormetric Titration BCG/MR2320BAlkalinity 06/26/2022
Hach SL 1000HACH 10260Free Chlorine 06/26/2022
Hach Model HQ40D150.1pH 06/26/2022
Hach PHC101012550Temperature 06/26/2022
Aqua Tech LaboratoriesContract LabTOC 06/26/2022
Hach SL 1000HACH 10260Total Chlorine 06/26/2022
Hach TU5200HACH 10258Turbidity 06/26/2022
Aqua Tech LaboratoriesContract LabUV254 06/26/2022
Lab ID: AL0280012
Valid UntilInstrumentMethodAnalyte
TRI COMMUNITY WSCNAAccreditation ID:
TX0280012(512) 738-0713Phone Number:Tommy ForesterContact Name:
Approval Date: 03/23/2021
Hach Pocket ColorimeterD1253-03Free Chlorine 03/23/2024
Hach Pocket Pro150.3pH 03/23/2024
Hach Pocket Pro2550Temperature 03/23/2024
Hach TU5300180.1Turbidity 03/23/2024
Monday, August 2, 2021 Page 171 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1011635
Valid UntilInstrumentMethodAnalyte
TRIMAC TRANSPORTATION LA PORTE NTS NAAccreditation ID:
TX1011635(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 11/21/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 11/21/2022
Lab ID: AL2280011
Valid UntilInstrumentMethodAnalyte
TRINITY RURAL WSC 1NAAccreditation ID:
TX2280011(936) 594-2192Phone Number:Jay SavanichContact Name:
Approval Date: 04/04/2019
Hach Digital TitratorD1067-02BAlkalinity 04/04/2022
Amperometric Titration/193004500CLO2-EChlorine Dioxide 04/04/2022
Amperometric Titration/193004500CLO2-EChlorite (at EP) 04/04/2022
Hach SL 1000HACH 10260Free Chlorine 04/04/2022
Intellical PHC201/SL1000150.1pH 04/04/2022
Intellical PHC201/SL10002550Temperature 04/04/2022
Eastex Environmental Lab - Coldsprings
Contract LabTOC 04/04/2022
Hach SL 1000HACH 10260Total Chlorine 04/04/2022
2100N180.1Turbidity 04/04/2022
Lab ID: AL0610018
Valid UntilInstrumentMethodAnalyte
TROPHY CLUB MUD 1NAAccreditation ID:
TX0610018(682) 831-4689Phone Number:Mike McMahonContact Name:
Approval Date: 09/29/2020
SL1000HACH 10260Free Chlorine 09/24/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 09/29/2021
SL1000HACH 10260Total Chlorine 09/24/2021
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 09/29/2021
Lab ID: AL0920021
Valid UntilInstrumentMethodAnalyte
TRYON ROAD SUDNAAccreditation ID:
TX0920021(903) 663-1447Phone Number:Glenn HobbsContact Name:
Approval Date: 10/28/2019
Hach DR 3004500CL-GFree Chlorine 10/28/2022
Hach DR 3004500CL-GTotal Chlorine 10/28/2022
Lab ID: AL2370067
Valid UntilInstrumentMethodAnalyte
TUBULAR STEELNAAccreditation ID:
TX2370067(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 01/13/2020
HACH Pocket Colorimeter II4500CL-GFree Chlorine 01/13/2023
Lab ID: AL1011329
Valid UntilInstrumentMethodAnalyte
TUGBOAT MARINANAAccreditation ID:
TX1011329(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 11/21/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 11/21/2022
Monday, August 2, 2021 Page 172 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0005679
Valid UntilInstrumentMethodAnalyte
TWS MANAGEMENT INC.NAAccreditation ID:
(903) 595-2128Phone Number:Steven HartleyContact Name:
Approval Date: 06/08/2021
Hach DR300 Pocket Colorimeter4500CL-FFree Chlorine 06/08/2022
Hach Pocket Pro + Multi 2150.1pH 06/08/2022
Hach Pocket Pro + Multi 22550Temperature 06/08/2022
Lab ID: AL2130045
Valid UntilInstrumentMethodAnalyte
UNIMIN TEXAS CLEBURNE PLANTNAAccreditation ID:
TX2130045(254) 897-4408Phone Number:Adam DoerflerContact Name:
Approval Date: 06/22/2021
Pace AnalyticalContract LabAlkalinity 06/22/2024
LCRAContract LabAlkalinity 06/22/2024
LCRAContract LabCalcium 06/22/2024
LCRAContract LabConductivity 06/22/2024
Hach DR9004500CL-GFree Chlorine 06/22/2024
Pace AnalyticalContract LabpH 06/22/2024
LCRAContract LabpH 06/22/2024
Hach DR900365.1Phosphate 06/22/2024
LCRAContract LabPhosphate 06/22/2024
Pace AnalyticalContract LabPhosphate 06/22/2024
LCRAContract LabSilica 06/22/2024
Pace AnalyticalContract LabTemperature 06/22/2024
LCRAContract LabTemperature 06/22/2024
LCRAContract LabTOC 06/22/2024
Pace AnalyticalContract LabTOC 06/22/2024
Pace AnalyticalContract LabTurbidity 06/22/2024
Lab ID: AL0290003
Valid UntilInstrumentMethodAnalyte
UNION CARBIDE SEADRIFT PLANTNAAccreditation ID:
TX0290003(361) 553-3584Phone Number:Juan PenaContact Name:
Approval Date: 08/23/2019
Titration - Phenolphthalein and Total
2320BAlkalinity 08/23/2022
DR/2800 UV-Spectrophotometer4500CL-GFree Chlorine 08/23/2022
HACH SensION 378150.1pH 08/23/2022
HACH SensION 3782550Temperature 08/23/2022
B-EnvironmentalContract LabTOC 08/23/2022
HACH 2100N180.1Turbidity 08/23/2022
Monday, August 2, 2021 Page 173 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0840043
Valid UntilInstrumentMethodAnalyte
UNION CARBIDE TEXAS CITYNAAccreditation ID:
TX0840043(281) 228-8160Phone Number:Michael SnyderContact Name:
Approval Date: 11/12/2020
SGSContract LabAlkalinity 11/12/2023
A&B LabsContract LabAlkalinity 11/12/2023
A&B LabsContract LabCalcium 11/12/2023
SGSContract LabCalcium 11/12/2023
A&B LabsContract LabConductivity 11/12/2023
SGSContract LabConductivity 11/12/2023
Hach Pocket Colorimeter DR3004500CL-GFree Chlorine 11/12/2023
A&B LabsContract LabHardness 11/12/2023
Hanna 9125150.1pH 11/12/2023
Hanna 91252550Temperature 11/12/2023
Hach Pocket Colorimeter DR3004500CL-GTotal Chlorine 11/12/2023
Lab ID: AL1360007
Valid UntilInstrumentMethodAnalyte
UNION PACIFIC NAVA CAR CLEANING FACILITY NAAccreditation ID:
TX1360007(830) 563-5336Phone Number:Refugio MartinezContact Name:
Approval Date: 03/06/2020
Hach Pocket Colorimeter4500CL-GFree Chlorine 03/06/2023
Hach Pocket Pro150.1pH 03/06/2023
Hach Pocket Pro2550Temperature 03/06/2023
Monday, August 2, 2021 Page 174 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0470015
Valid UntilInstrumentMethodAnalyte
UPPER LEON RIVER MWDT104704395Accreditation ID:
TX0470015(254) 879-2258Phone Number:Gary D. LacyContact Name:
Approval Date: 03/23/2021
Bench Titration Method2320BAlkalinity 03/23/2024
Hach 19300 Amperometric Titration
4500CLO2-EChlorine Dioxide 03/23/2024
HACH SensION 24500H-BpH 03/23/2024
HACH SensION 14500H-BpH 03/23/2024
HACH SensION+ pH314500H-BpH 03/23/2024
Hach 19300 Amperometric Titration
4500CLO2-EPOE Chlorite 03/23/2024
HACH pH31 Combined Electrode2550Temperature 03/23/2024
HACH SensION 1 Combined Electrode
2550Temperature 03/23/2024
HACH SensION 2 Combined Electrode
2550Temperature 03/23/2024
LCRA Environmental Lab ServicesContract LabTOC 03/23/2024
CL17 sc4500CL-GTotal Chlorine 03/23/2024
DR28004500CL-GTotal Chlorine 03/23/2024
TU5300HACH 10258Turbidity 03/23/2024
TU5200HACH 10258Turbidity 03/23/2024
TU5400HACH 10258Turbidity 03/23/2024
LCRA Environmental Lab ServicesContract LabUV254 03/23/2024
Lab ID: ALTP14908
Valid UntilInstrumentMethodAnalyte
USDA MOORE FIELDNAAccreditation ID:
TX1080075(956) 205-7603Phone Number:Jose Luis CabelloContact Name:
Approval Date: 02/08/2021
Buret Titration2320BAlkalinity 02/08/2024
Hach TitraLab AT10004500CLO2-EChlorine Dioxide 02/08/2024
Hach Pocket Colorimeter II4500CL-GFree Chlorine 02/08/2024
Hach HQ440d150.1pH 02/08/2024
Hach TitraLab AT10004500CLO2-EPOE Chlorite 02/08/2024
Hach HQ440d2550Temperature 02/08/2024
A & B LaboratoryContract LabTOC 02/08/2024
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 02/08/2024
Hach 2100N Lab Turbidimeter180.1Turbidity 02/08/2024
Lab ID: AL1220003
Valid UntilInstrumentMethodAnalyte
UT MCDONALD OBSERVATORYNAAccreditation ID:
TX1220003(432) 426-4173Phone Number:Eric SulewskiContact Name:
Approval Date: 10/21/2020
HACH POCKET COLORIMETER4500CL-GFree Chlorine 08/20/2023
PLANT PRO PH TESTER4500H-BpH 10/21/2023
THERMOMETER2550Temperature 10/21/2023
Monday, August 2, 2021 Page 175 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP410451
Valid UntilInstrumentMethodAnalyte
UT MEDICAL BRANCH GALVESTONNAAccreditation ID:
TX0840272(972) 765-6737Phone Number:Dean LeathersContact Name:
Approval Date: 01/31/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/31/2023
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 01/31/2023
Lab ID: AL1011189
Valid UntilInstrumentMethodAnalyte
UTLX MANUFACTURINGNAAccreditation ID:
TX1011189(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 02/07/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 02/07/2022
Lab ID: AL1013015
Valid UntilInstrumentMethodAnalyte
UTLX MANUFACTURINGNAAccreditation ID:
TX1013015(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 04/26/2019
HACH Pocket Colorimeter II4500CL-GFree Chlorine 04/26/2022
Lab ID: ALTP15187
Valid UntilInstrumentMethodAnalyte
UTRWD TAYLOR PLANT LABNAAccreditation ID:
TX0610213(940) 365-1879Phone Number:Tim BrazileContact Name:
Approval Date: 10/08/2018
Titration2320BAlkalinity 10/08/2021
Hach Cl-174500CL-GFree Chlorine 10/08/2021
Hach Sension150.1pH 10/08/2021
Hach Sension2550Temperature 10/08/2021
OI Analytical 92105310CTOC 10/08/2021
Hach Cl-174500CL-GTotal Chlorine 10/08/2021
Hach 2100 AN180.1Turbidity 10/08/2021
Contract LabUV254 10/08/2021
Lab ID: ALTP20826
Valid UntilInstrumentMethodAnalyte
UTRWD TOM HARPOOL WTP LABNAAccreditation ID:
TX0610213(469) 635-8193Phone Number:Ben HodgesContact Name:
Approval Date: 11/02/2018
Bromocresol Green/Methyl Red Titration
2320BAlkalinity 11/02/2021
Hach CL-174500CL-FFree Chlorine 11/02/2021
Hach Sension-3 pH Meter150.1pH 11/02/2021
Hach Sension-3 pH Meter2550Temperature 11/02/2021
Hach CL-174500CL-FTotal Chlorine 11/02/2021
Hach 2100 Turbidimeter180.1Turbidity 11/02/2021
Lab ID: AL1330095
Valid UntilInstrumentMethodAnalyte
VA HOSPITAL KERRVILLENAAccreditation ID:
TX1330095(830) 792-2634Phone Number:Julian TorresContact Name:
Approval Date: 04/17/2020
HACH DR9004500CL-GFree Chlorine 04/17/2023
HACH Colormeter II4500CL-GFree Chlorine 04/17/2023
Monday, August 2, 2021 Page 176 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0610052
Valid UntilInstrumentMethodAnalyte
VACATION VILLAGENAAccreditation ID:
TX0610052(903) 429-3008Phone Number:Andrew MooreContact Name:
Approval Date: 04/06/2021
Hach Sension PH1150.1pH 04/06/2024
Hach Sension PH12550Temperature 04/06/2024
Lab ID: AL0200177
Valid UntilInstrumentMethodAnalyte
VENCOREX USNAAccreditation ID:
TX0200177(979) 482-2443Phone Number:Azel Brian McGeeContact Name:
Approval Date: 11/14/2019
VWR Symphony B10P4500H-BpH 11/14/2022
VWR Symphony B10P2550Temperature 11/14/2022
Lab ID: AL2350006
Valid UntilInstrumentMethodAnalyte
VICTORIA COUNTY WCID 2NAAccreditation ID:
TX2350006(361) 237-1066Phone Number:Richard SauderContact Name:
Approval Date: 06/29/2021
Hach Pocket Colorimeter II4500CL-GFree Chlorine 06/29/2024
Oakton pH 30150.2pH 06/29/2024
Oakton pH 30150.1pH 06/29/2024
Oakton pH 302550Temperature 06/29/2024
Lab ID: AL1220012
Valid UntilInstrumentMethodAnalyte
VILLAGE FARMS OF TEXASNAAccreditation ID:
TX1220012(432) 426-2301Phone Number:Mark A. CashContact Name:
513
Approval Date: 08/27/2020
LCRA ELSContract LabAlkalinity 08/27/2023
LCRA ELSContract LabCalcium 08/27/2023
LCRA ELSContract LabConductivity 08/27/2023
HACH Pocket Colorimeter DR3004500CL-GFree Chlorine 08/27/2023
Hanna HI98107150.1pH 08/27/2023
LCRA ELSContract LabPhosphate 08/27/2023
LCRA ELSContract LabSilica 08/27/2023
Hanna HI981072550Temperature 08/27/2023
Lab ID: ALTP1180
Valid UntilInstrumentMethodAnalyte
WAGON WHEEL ESTATES WATER SYSTEM WTP NAAccreditation ID:
TX0200024(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 07/11/2019
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 07/11/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 07/11/2022
Lab ID: AL1840008
Valid UntilInstrumentMethodAnalyte
WALNUT CREEK SUDNAAccreditation ID:
TX1840008(940) 683-2347Phone Number:Michael HollowayContact Name:
Approval Date: 03/01/2021
Hach Pocket Pro Plus4500H-BpH 03/01/2024
Hach Pocket Pro Plus2550Temperature 03/01/2024
Monday, August 2, 2021 Page 177 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP17246
Valid UntilInstrumentMethodAnalyte
WALNUT CREEK SUD - WALNUT CREEK SWTP NAAccreditation ID:
TX1840008(940) 683-2347Phone Number:Michael HollowayContact Name:
Approval Date: 03/01/2021
Titration2320BAlkalinity 03/01/2024
Hach Colorimeter II4500CLO2-DChlorine Dioxide 03/01/2024
Hach Colorimeter II4500CL-GFree Chlorine 03/01/2024
Hach Sension PH34500H-BpH 03/01/2024
Hach Titralab AT10004500CLO2-EPOE Chlorite 03/01/2024
Hach Sension PH32550Temperature 03/01/2024
Hach Colorimeter II4500CL-GTotal Chlorine 03/01/2024
HF Scientific MicroTPW/Microtol180.1Turbidity 03/01/2024
Lab ID: AL0890005
Valid UntilInstrumentMethodAnalyte
WARM SPRINGS REHAB HOSPITALNAAccreditation ID:
TX0890005(830) 875-5131Phone Number:James MaceContact Name:
Approval Date: 08/20/2019
HACH Pocket PRO4500H-BpH 08/20/2022
HACH Pocket PRO2550Temperature 08/20/2022
Lab ID: AL2400022
Valid UntilInstrumentMethodAnalyte
WEBB COUNTY WATER UTILITIESNAAccreditation ID:
TX2400022(956) 523-5590Phone Number:Juan G VasquezContact Name:
Approval Date: 01/08/2020
Hach sensIon + PH 14500H-BpH 01/08/2023
Total Immersion (Thermometer)2550Temperature 01/08/2023
Lab ID: AL0210016
Valid UntilInstrumentMethodAnalyte
WELLBORN SUDNAAccreditation ID:
TX0210016(979) 324-7238Phone Number:Michael GregoryContact Name:
Approval Date: 09/24/2018
Burett2320BAlkalinity 09/24/2021
Severn Trent Titrator4500CLO2-EChlorine Dioxide 09/24/2021
Severn Trent Titrator4500CLO2-EChlorite (at EP) 09/24/2021
Hach Pocket Colorimeter ll4500CL-GFree Chlorine 09/24/2021
Hach 40D150.1pH 09/24/2021
Hach 40D2550Temperature 09/24/2021
Hach Pocket Colorimeter ll4500CL-GTotal Chlorine 09/24/2021
HACH 2100N180.1Turbidity 09/24/2021
Chemtrac UVP 1000415.3UV254 09/24/2021
Lab ID: ALTP14880
Valid UntilInstrumentMethodAnalyte
WEST CEDAR CREEK MUD - TOOL PLANT NAAccreditation ID:
TX1070190(903) 880-8769Phone Number:Kenneth MalinContact Name:
Approval Date: 05/20/2019
Ana-LabContract LabTOC 05/20/2022
Ana-LabContract LabUV254 05/20/2022
Monday, August 2, 2021 Page 178 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP14879
Valid UntilInstrumentMethodAnalyte
WEST CEDAR CREEK MUD TOLOSA WTP LAB NAAccreditation ID:
TX1070190(903) 880-8769Phone Number:Kenneth MalinContact Name:
Approval Date: 05/20/2019
Digital Titration2320BAlkalinity 05/20/2022
HF Scientific CLX4500CL-GFree Chlorine 05/20/2022
Hach SensION +Ph3150.1pH 05/20/2022
Hach SensION +pH32550Temperature 05/20/2022
Ana-LabContract LabTOC 05/20/2022
DR39004500CL-GTotal Chlorine 05/20/2022
HACH TU5300HACH 10258Turbidity 05/20/2022
HACH TU5200HACH 10258Turbidity 05/20/2022
Ana-LabContract LabUV254 05/20/2022
Lab ID: ALTP14880
Valid UntilInstrumentMethodAnalyte
WEST CEDAR CREEK MUD TOOL WTP LAB NAAccreditation ID:
TX1070190(903) 880-8769Phone Number:Kenneth MalinContact Name:
Approval Date: 05/20/2019
Digital Titration2320BAlkalinity 05/20/2022
HF Scientific CLX4500CL-GFree Chlorine 05/20/2022
HACH HQ411D150.1pH 05/20/2022
HACH HQ411D2550Temperature 05/20/2022
DR39004500CL-GTotal Chlorine 05/20/2022
Hach TU5300Hach 10258Turbidity 05/20/2022
Hach TU5200Hach 10258Turbidity 05/20/2022
Lab ID: AL1012238
Valid UntilInstrumentMethodAnalyte
WEST HARRIS COUNTY MUD 17NAAccreditation ID:
TX1012238(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Lab ID: AL1012882
Valid UntilInstrumentMethodAnalyte
WEST HARRIS COUNTY MUD 21NAAccreditation ID:
TX1012882(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/03/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/03/2023
Lab ID: AL1011825
Valid UntilInstrumentMethodAnalyte
WEST HARRIS COUNTY MUD 4NAAccreditation ID:
TX1011825(713) 395-3100Phone Number:Greg CampContact Name:
Approval Date: 01/02/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/02/2023
Lab ID: AL1012228
Valid UntilInstrumentMethodAnalyte
WEST HARRIS COUNTY MUD 7NAAccreditation ID:
TX1012228(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Monday, August 2, 2021 Page 179 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: ALTP20434
Valid UntilInstrumentMethodAnalyte
WEST JEFFERSON COUNTY MWDNAAccreditation ID:
TX1230021(409) 794-2338Phone Number:William ManleyContact Name:
Approval Date: 04/04/2019
Burrett Titration2320BAlkalinity 04/04/2022
Severn Trent 17T20 Titrator4500CLO2-EChlorine Dioxide 04/04/2022
Severn Trent 17T20 Titrator4500CLO2-EChlorite (at EP) 04/04/2022
Hach DR 39004500CL-GFree Chlorine 04/04/2022
SensION pH 314500H-BpH 04/04/2022
SensION pH 312550Temperature 04/04/2022
Eastex Environmental LaboratoriesContract LabTOC 04/04/2022
Hach DR 39004500CL-GTotal Chlorine 04/04/2022
2100Q2130BTurbidity 04/04/2022
Lab ID: AL2260038
Valid UntilInstrumentMethodAnalyte
WEST TEXAS BOYS RANCHNAAccreditation ID:
TX2260038(325) 949-1936Phone Number:Lynn BlasingameContact Name:
Approval Date: 01/30/2020
Hach Pocket Colorimeter II4500CL-GFree Chlorine 01/30/2023
Lab ID: AL0360139
Valid UntilInstrumentMethodAnalyte
WEST TEXAS DRUM COMPANYNAAccreditation ID:
TX0360139(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 05/28/2020
HACH Pocket Colorimeter II/DR3004500CL-GFree Chlorine 05/18/2023
Lab ID: AL0670027
Valid UntilInstrumentMethodAnalyte
WESTBOUND WSC CISCO SOURCENAAccreditation ID:
TX0670027(254) 442-3348Phone Number:Dustin JonesContact Name:
Approval Date: 02/25/2020
HACH POCKET COLORIMETER4500CL-GFree Chlorine 02/25/2023
HACH POCKET PRO + MULTI 2150.1pH 02/25/2023
HACH POCKET PRO + MULTI 22550Temperature 02/25/2023
HACH POCKET COLORIMETER4500CL-GTotal Chlorine 02/25/2023
Lab ID: AL1260128
Valid UntilInstrumentMethodAnalyte
WESTOVER HILLSNAAccreditation ID:
TX1260128(817) 645-5493Phone Number:James DycheContact Name:
Approval Date: 01/15/2020
Jellas, Model - JLPH014500H-BpH 01/15/2023
Delta Trak, Model - 110502550Temperature 01/15/2023
Lab ID: AL0730019
Valid UntilInstrumentMethodAnalyte
WESTPHALIA WSCNAAccreditation ID:
TX0730019(254) 584-5616Phone Number:Larry J. FreiContact Name:
Approval Date: 02/27/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 02/27/2022
Hach Pocket Colorimeter II4500CL-GTotal Chlorine 02/27/2022
Monday, August 2, 2021 Page 180 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1210007
Valid UntilInstrumentMethodAnalyte
WESTWOOD WSCNAAccreditation ID:
TX1210007(409) 200-5085Phone Number:Joshua CulbertContact Name:
Approval Date: 09/15/2020
HQ11-D4500H-BpH 09/15/2023
HQ11-D2550Temperature 09/15/2023
Lab ID: AL2420002
Valid UntilInstrumentMethodAnalyte
WHEELER MUNICIPAL WATER SYSTEM NAAccreditation ID:
TX2420002(806) 826-3222Phone Number:Paul ArganbrightContact Name:
Approval Date: 12/16/2019
Pocket Pro Tester4500H-BpH 12/16/2022
Pocket Pro Tester2550Temperature 12/16/2022
Lab ID: ALTP15138
Valid UntilInstrumentMethodAnalyte
WICHITA VALLEY LAKE KICKAPOO WTP NAAccreditation ID:
TX2430006(940) 723-6394Phone Number:Gerald DunlapContact Name:
Approval Date: 01/28/2019
HACH DIGITAL TITRATOR2320BAlkalinity 01/28/2022
SENSION P.H 3150.1pH 01/28/2022
SENSION P.H 32550Temperature 01/28/2022
PACE ANALYTICALContract LabTOC 01/28/2022
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 01/28/2022
HACH 2100Q180.1Turbidity 01/28/2022
Lab ID: AL0270126
Valid UntilInstrumentMethodAnalyte
WILDERNESS COVENAAccreditation ID:
TX0270126(830) 693-2963Phone Number:Ricky L. RoweContact Name:
Approval Date: 12/09/2020
LCRA ELSContract LabAlkalinity 12/09/2023
LCRA ELSContract LabCalcium 12/09/2023
LCRA ELSContract LabConductivity 12/09/2023
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/09/2023
Oakton pH Testr 304500H-BpH 12/09/2023
Standard Digital Thermometer2550Temperature 12/09/2023
Lab ID: AL0790550
Valid UntilInstrumentMethodAnalyte
WILLOW POINT MUDNAAccreditation ID:
TX0790550(832) 490-1507Phone Number:Michael ThornhillContact Name:
Approval Date: 09/02/2020
Hach Pocket Colorimeter4500CL-GFree Chlorine 09/02/2023
Hach Pocket Colorimeter4500CL-GTotal Chlorine 09/02/2023
Monday, August 2, 2021 Page 181 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL0270035
Valid UntilInstrumentMethodAnalyte
WINDERMERE OAKS WSCNAAccreditation ID:
TX0270035(512) 541-9070Phone Number:Robert HicksContact Name:
Approval Date: 06/03/2021
Titration2320BAlkalinity 06/03/2024
Hach Sension 2150.1pH 06/03/2024
Hach Sension 22550Temperature 06/03/2024
Hach CL174500CL-GTotal Chlorine 06/03/2024
Colorimeter II4500CL-GTotal Chlorine 06/03/2024
Hach 2100P180.1Turbidity 06/03/2024
Hach 1720E180.1Turbidity 06/03/2024
Lab ID: AL0050013
Valid UntilInstrumentMethodAnalyte
WINDTHORST WSCNAAccreditation ID:
TX0050013(940) 423-6685Phone Number:Charles TeichmanContact Name:
Approval Date: 01/28/2020
SL 10002320BAlkalinity 01/28/2023
BURETTE TITRATOR2320BAlkalinity 01/28/2023
SL 1000HACH 10260Free Chlorine 01/28/2023
HACH CL174500CL-GFree Chlorine 01/28/2023
DR 9004500CL-GFree Chlorine 01/28/2023
phC201 Probe150.1pH 01/28/2023
POCKET PRO +PH150.1pH 01/28/2023
phC201 Probe2550Temperature 01/28/2023
POCKET PRO +PH2550Temperature 01/28/2023
LCRAContract LabTOC 01/28/2023
SL 1000HACH 10260Total Chlorine 01/28/2023
HACH CL174500CL-GTotal Chlorine 01/28/2023
DR 9004500CL-GTotal Chlorine 01/28/2023
TL2300 TURBIDIMETER180.1Turbidity 01/28/2023
1720E180.1Turbidity 01/28/2023
TU5300SC180.1Turbidity 01/28/2023
LCRAContract LabUV254 01/28/2023
Lab ID: AL1012857
Valid UntilInstrumentMethodAnalyte
WM ATASCOCITA RECYCLING DISPOSAL FACILITY NAAccreditation ID:
TX1012857(713) 737-5938Phone Number:Lisa BrooksContact Name:
Approval Date: 04/08/2020
HACH Pocket Colorimeter II or DR300
4500CL-GFree Chlorine 04/08/2023
Monday, August 2, 2021 Page 182 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL1110130
Valid UntilInstrumentMethodAnalyte
WOLF HOLLOW IINAAccreditation ID:
TX1110130(817) 579-4165Phone Number:Shae SaurContact Name:
Approval Date: 12/04/2019
Hach Pocket Colorimeter II4500CL-GFree Chlorine 12/04/2022
Hach HQ40D Portable pH Meter4500H-BpH 12/04/2022
Thomas Scientific Ultra Therm 1235D08
2550Temperature 12/04/2022
Lab ID: AL1700642
Valid UntilInstrumentMethodAnalyte
WOOD TRACE MUD 1NAAccreditation ID:
TX1700642(281) 734-6820Phone Number:Sharon SalinasContact Name:
Approval Date: 02/19/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 02/19/2023
Lab ID: AL0320014
Valid UntilInstrumentMethodAnalyte
WOODLAND HARBORNAAccreditation ID:
TX0320014(903) 240-1649Phone Number:Marc HughesContact Name:
Approval Date: 10/06/2020
Hach Pocket Colorimeter4500CL-GFree Chlorine 10/06/2023
Lab ID: ALTP16847
Valid UntilInstrumentMethodAnalyte
WOODLAND RANCH WTPNAAccreditation ID:
TX1700657(512) 990-4400Phone Number:Joaquin MontesContact Name:
56109
Approval Date: 04/28/2020
HACH POCKET COLORIMETER II4500CL-GFree Chlorine 04/28/2023
HACH POCKET COLORIMETER II4500CL-GTotal Chlorine 04/28/2023
Lab ID: AL0430044
Valid UntilInstrumentMethodAnalyte
WYLIE WATER TREATMENT PLANTSNAAccreditation ID:
TX0430044(469) 626-4436Phone Number:Adam BaughContact Name:
Approval Date: 11/01/2018
Buret Titration2320BAlkalinity 11/01/2021
Hach Amperometric Model 19299-00
4500CLO2-EChlorine Dioxide 11/01/2021
Hach Amperometric Model 19299-00
4500CLO2-EChlorite (at EP) 11/01/2021
Hach CDC4012510BConductivity 11/01/2021
Amperometric/SpectrophotometerHACH 10260Free Chlorine 11/01/2021
Hach PHC2814500H-BpH 11/01/2021
Hach PHC2812550Temperature 11/01/2021
Amperometric/SpectrophotometerHACH 10260Total Chlorine 11/01/2021
Hach TU5200HACH 10258Turbidity 11/01/2021
Monday, August 2, 2021 Page 183 of 184
PWS ID LAB NAME
The following list of laboratories are approved by the TCEQ's Drinking Water Standards Division. The list indicates each approved drinking water analyte and method for each public water system laboratory listed. For questions related to individual laboratory approval please call (512) 239-4691.
Approved Public Water System Laboratories
Lab ID: AL2530023
Valid UntilInstrumentMethodAnalyte
ZAPATA COUNTY WCID HWY 16 EAST NAAccreditation ID:
TX2530023(956) 765-9650Phone Number:Juan J. BenavidesContact Name:
Approval Date: 10/24/2019
HACH Pocket Colorimeter4500CL-GFree Chlorine 10/24/2022
Thermometer Non-Mercury Compact
2550Temperature 10/24/2022
HACH Pocket Colorimeter4500CL-GTotal Chlorine 10/24/2022
Monday, August 2, 2021 Page 184 of 184
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