Mr. Lonnie Stewart General Manager Bee Groundwater ... Run 16... · Jaime Burke, AECOM, Inc. ... To...
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Texas Water Development Board PC. Box 13231, 1700 N. Congress Ave. Austin, TX 78711-3231 www.twdb.texas.gov Phone (512) 463-7847, Fax (512) 475-2053 March 22, 2017 Mr. Lonnie Stewart General Manager Bee Groundwater Conservation District P.O. Box 682 Beeville, TX 78104 Dear Mr. Stewart: Texas Water Code, Section 36.1084, Subsection (b) states that the Texas Water Development Board’s (TWDB] Executive Administrator shall provide each groundwater conservation district and regional water planning group located wholly or partly in the groundwater management area with the modeled available groundwater in the management area based upon the desired future conditions adopted by the districts. This letter and the attached report (GAM Run 16-025 MAG) are in response to this directive. Groundwater Management Area 15 adopted desired future conditions for the Gulf Coast Aquifer System on April 29, 2016, as noted in the letter from Tim Andruss, Groundwater Management Area 15 Chair received by the TWDB on June 27, 2016. Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1, Subsection (25), as “the amount ofwater that the executive administrator determines may be produced on an average annual basis to achieve a desired future condition established under Section 36.108.” Modeled available groundwater estimates are reported by aquifer, groundwater conservation district, county, regional water planning area, and river basin for use by groundwater conservation districts and for use in the regional water planning process. We encourage open communication and coordination between groundwater conservation districts, regional water planning groups, and the TWDB to ensure that the modeled available groundwater reported in regional water plans and groundwater management plans are not in conflict. The estimates of modeled available groundwater are the pumping volumes that would have to occur to achieve the desired future conditions using the best available scientific tools. However, these estimates are based on assumptions of the magnitude and distribution ofprojected pumping in the aquifer. It is, therefore, important for groundwater conservation districts to monitor whether their management of pumping is achieving their desired future conditions. Districts are encouraged to continue to work Our Mission Board Members To provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member support for planning, financial assistance, and outreach for the conservation and responsible development of water for Texas : Jeff Walker, Executive Administrator
Transcript of Mr. Lonnie Stewart General Manager Bee Groundwater ... Run 16... · Jaime Burke, AECOM, Inc. ... To...
Texas WaterDevelopment Board
PC. Box 13231, 1700 N. Congress Ave.Austin, TX 78711-3231 www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. Lonnie StewartGeneral ManagerBee Groundwater Conservation DistrictP.O. Box 682Beeville, TX 78104
Dear Mr. Stewart:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB] Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board Members
To provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Membersupport for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Lonnie Stewart, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
ectfully,
jeffvaerExecutWe Administrator
Attachment: GAM Run 16-025 MAG
C w/att. : David Wheelock, Lower Colorado River AuthoritySteven I. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 7871 1-3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. Tim AndrussGeneral ManagerCalhoun County Groundwater Conservation DistrictP.O. Box 1395Port Lavaca, TX 77979
Dear Mr. Andruss:
Texas Water Code, Section 36.1084, Subsection (b] states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG] are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter you sent, received by the TWDB onJune 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board MembersTo provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member
support for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Tim Andruss, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Re p ctfully,
Jeff 1lèrExecutive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven 1. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 1 3231 1 700 N. Congress Ave.Austin, TX 78711-3231 www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. Neil HudginsGeneral ManagerCoastal Bend Groundwater Conservation DistrictP.O. Box 341Wharton, TX 77488
Dear Mr. Hudgins:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB] Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution of projected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board Members
To provide leadership, information, education, and Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Membersupport for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Neil Hudgins, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Jeff erExecutive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven J. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 7871 1 -3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. Neil HudginsGeneral ManagerCoastal Plains Groundwater Conservation District2200 7th StreetBay City, TX 77414
Dear Mr. Hudgins:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board Members
To provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member f Peter Lake, Board Membersupport for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Neil Hudgins, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses of the aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
ectfully,
Jeff 1 erExec ye Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven 1. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 78711-3231, www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. James BrasherGeneral ManagerColorado County Groundwater Conservation DistrictP.O. Box 667Columbus, TX 78934
Dear Mr. Brasher:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG] are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25], as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution of projected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board MembersTo provide leadership, information, education, and Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member
support for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
James Brasher, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses of the aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or ifyou have any questions or need anyfurther information.
R p ctfully,
//Jeff erExecut e Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven 1. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box I 3231 1 700 N. Congress Ave.Austin, TX 7871 1 -3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. Larijai FrancisCity Project Manager-Water ResourcesCorpus Christi Aquifer Storage and Recovery Conservation DistrictP.O. Box 9277Corpus Christi, TX 78469
Dear Mr. Fancis:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG] are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution of projected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board MembersTo provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member
support for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Larijai Francis, City Project Manager-Water ResourcesMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses of the aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Jeff erExecutive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven J. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 7871 1-3231, www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. Russell LabusGeneral ManagerEvergreen Underground Water Conservation District110 Wyoming Blvd.Pleasanton, TX 78064
Dear Mr. Labus:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board MembersTo provide leadership, information, education, and Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member
support for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Russell Labus, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Res ectfully,
Jeff Va1lrExecutive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven I. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office of Water, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 78711-3231, www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. David Van DresarGeneral ManagerFayette County Groundwater Conservation District255 Svoboda Ln., Rm. 115La Grange, TX 78945
Dear Mr. Van Dresar:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDBJ Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution of projected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board Members
To provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Membersupport for planning, financial assistance, andoutreach for the conservation and responsible
development ofwater for Texas 2 JeffWalker, Executive Administrator
David Van Dresar, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses of the aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Res tfully,
Jeff erExecutive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : ‘ David Wheelock, Lower Colorado River AuthoritySteven 1. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P0. Box I 3231 , I 700 N. Congress Ave.Austin, TX 78711-3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Ms. Barbara SmithGeneral ManagerGoliad County Groundwater Conservation DistrictRO. Box 562Goliad, TX 77963
Dear Ms. Smith:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board MembersTo provide leadership, information, education, and Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member
support for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Barbara Smith, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Res tfully,
Jeff a(cJrExecutive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven J. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 78711-3231, www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Ms. Charlotte KrauseGeneral ManagerPecan Valley Groundwater Conservation District107 N. GonzalesCuero, TX 77954
Dear Ms. Krause:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution of projected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board Members
To provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Membersupport for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas Jeff Walker, Executive Administrator
Charlotte Krause, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Resp?ully,
Jeff WaJkExecutive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven J. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box I 3231 , 1 700 N. Congress Ave.Austin, TX 7871 1-3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. Tim AndrussGeneral ManagerRefugio Groundwater Conservation DistrictP.O. Box 116Refugio, TX 78377
Dear Mr. Andruss:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter you sent, received by the TWDB onJune 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25], as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board MembersTo provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member
support for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Tim Andruss, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses of the aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Executive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven J. Raabe, P.E., San Antonio River AuthorityRocky freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 7871 1-3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. Tim AndrussGeneralManager
Texana Groundwater Conservation DistrictP.O. Box 109$Edna, TX 77957
Dear Mr. Andruss:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter you sent, received by the TWDB onJune 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25], as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board MembersTo provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member
support for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Tim Andruss, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses of the aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
espe tfl%
Jef erExec ye Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven 1. Raabe, P.E., San Antonio River AuthorityRocky freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
PC. Box 13231, 1700 N. Congress Ave.Austin, TX 7871 1 -3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. Tim AndrussGeneral ManagerVictoria County Groundwater Conservation District2805 N. Navarro St., Ste. 210Victoria, TX 77901
Dear Mr. Andruss:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter you sent, received by the TWDB onJune 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution of projected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumpingis achieving their desired future conditions. Districts are encouraged to continue to work
Our Mission Board MembersTo provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member
support for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Tim Andruss, General ManagerMarch 22, 2017Page 2
with the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
R pe tfull
Jeff erExedite Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven 1. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 7871 1 -3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Mr. John E. BurkeChairLower Colorado Regional Water Planning Groupdo John Burke & Associates496 Shiloh Rd.Bastrop, TX 78602
Dear Mr. Burke:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB] Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumping
Our Mission Board MembersTo provide leadership, information, education, and Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member
support for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
John F. Burke, ChairMarch22,2017Page 2
is achieving their desired future conditions. Districts are encouraged to continue to workwith the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Resp fully,
JeffW l1Exec tive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven J. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 7871 1-3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March22,2017
Scott Bledsoe, IIICo-ChairCoastal Bend Regional Water Planning Groupc/o Live Oak Underground Water Conservation DistrictP,O Box 3Oakville, TX 78060
Dear Mr. Bledsoe:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG] are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution of projected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumping
Our Mission Board MembersTo provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Member
support for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Scott Bledsoe, III, Co-ChairMarch 22, 2017Page 2
is achieving their desired future conditions. Districts are encouraged to continue to workwith the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
sp ctfullj
Jeff erExcci1ti4ie Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven 1. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 7871 1-3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Ms. Suzanne B. ScottChairSouth Central Texas Regional Water Planning Groupc/o San Antonio River Authority100 East Guenther St.San Antonio, TX 78283
Dear Ms. Scott:
Texas Water Code, Section 36.1084, Subsection (b] states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumping
Our Mission Board Members
To provide leadership, information, education, and Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Membersupport for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Suzanne B. Scott, ChairMarch 22, 2017Page 2
is achieving their desired future conditions. Districts are encouraged to continue to workwith the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Resp ully
JeffW 1kExec tive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven J. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 7871 1-3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
The Honorable Harrison Stafford, IIChairLavaca Regional Water Planning Groupdo former Jackson County Judge508 South Gilbert St.Edna, TX 77957
Dear Judge Stafford:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDB) Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25], as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumping
Our Mission Board Members
To provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Membersupport for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
The Honorable Harrison Stafford, II, ChairMarch 22, 2017Page 2
is achieving their desired future conditions. Districts are encouraged to continue to workwith the TWDB to better define available groundwater as additional information may helpbetter assess responses ofthe aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Res e fully
JeffW 1Executive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven 1. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
Texas WaterDevelopment Board
P.O. Box 13231, 1700 N. Congress Ave.Austin, TX 7871 1-3231 , www.twdb.texas.govPhone (512) 463-7847, Fax (512) 475-2053
March 22, 2017
Ms. Carola SerratoCo-ChairCoastal Bend Regional Water Planning Groupc/o South Texas Water AuthorityP.O. Box 1701Kingsville, TX 78364
Dear Ms. Serrato:
Texas Water Code, Section 36.1084, Subsection (b) states that the Texas WaterDevelopment Board’s (TWDBJ Executive Administrator shall provide each groundwaterconservation district and regional water planning group located wholly or partly in thegroundwater management area with the modeled available groundwater in themanagement area based upon the desired future conditions adopted by the districts. Thisletter and the attached report (GAM Run 16-025 MAG) are in response to this directive.
Groundwater Management Area 15 adopted desired future conditions for the Gulf CoastAquifer System on April 29, 2016, as noted in the letter from Tim Andruss, GroundwaterManagement Area 15 Chair received by the TWDB on June 27, 2016.
Modeled available groundwater is defined in the Texas Water Code, Section 36.00 1,Subsection (25), as “the amount ofwater that the executive administrator determines maybe produced on an average annual basis to achieve a desired future condition establishedunder Section 36.108.” Modeled available groundwater estimates are reported by aquifer,groundwater conservation district, county, regional water planning area, and river basinfor use by groundwater conservation districts and for use in the regional water planningprocess.
We encourage open communication and coordination between groundwater conservationdistricts, regional water planning groups, and the TWDB to ensure that the modeledavailable groundwater reported in regional water plans and groundwater managementplans are not in conflict. The estimates of modeled available groundwater are the pumpingvolumes that would have to occur to achieve the desired future conditions using the bestavailable scientific tools. However, these estimates are based on assumptions of themagnitude and distribution ofprojected pumping in the aquifer. It is, therefore, importantfor groundwater conservation districts to monitor whether their management of pumping
Our Mission Board Members
To provide leadership, information, education, and : Bech Bruun, Chairman Kathleen Jackson, Board Member Peter Lake, Board Membersupport for planning, financial assistance, andoutreach for the conservation and responsible
development of water for Texas : Jeff Walker, Executive Administrator
Carola Serrato, Co-ChairMarch 22, 2017Page 2
is achieving their desired future conditions. Districts are encouraged to continue to workwith the TWDB to better define available groundwater as additional information may helpbetter assess responses of the aquifer to pumping and its distribution now and in thefuture.
Please contact Dr. Rima Petrossian ofour Groundwater Technical Assistance staffat 512-936-2420 or [email protected] ifyou have any questions or need anyfurther information.
Res. t,2
i,,)Jeff al eExecutive Administrator
Attachment: GAM Run 16-025 MAG
c w/att. : David Wheelock, Lower Colorado River AuthoritySteven I. Raabe, P.E., San Antonio River AuthorityRocky Freund, Nueces River AuthorityKaren Gregory, Lavaca-Navidad River AuthorityJaime Burke, AECOM, Inc.Brian Perkins, Black & Veatch Corp.Kristi Shaw, HDR, Inc.L’Oreal Stepney, Deputy Director, Office ofWater, Texas Commission ofEnvironmental QualityKim Wilson, Texas Commission of Environmental QualityKelly Mills, Texas Commission of Environmental QualityRobert Mace, Deputy Executive Administrator, Water Science andConservationLarry French, Groundwater DivisionTemple McKinnon, Water Use, Projections, & PlanningSarah Backhouse, Water Use, Projections, & PlanningSabrina Anderson, Water Use, Projections, & Planning
