BONNER MILL JUNE 2016 SEMIANNUAL REPOSITORY …

BONNER MILL JUNE 2016 SEMIANNUAL REPOSITORY INSPECTION FORM

PERIMETER FENCE INSPECTION Walk entire perimeter of fenceline/barrier, and indicate gaps, damage, loose wire tension, or poor condition, by perimeter location WOOD BRACE & CORNER POSTS: _Good condition.__________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ BARBED WIRE “FABRIC”: _Good condition on east, west and north side. Poor condition on south side and needs repair.__________________________________________________________________________________________________________________________________________ WARNING SIGNS ALONG FENCE (placed ~ every 350 feet): _Present and in good condition.______________________________________________ ________________________________________________________________________________________________________________________________________________ GATE CONDITION & SECURITY: _Gate is locked. Poor security due to damaged fence next to gate (see photos).________ ________________________________________________________________________________________________________________________________________________ SIGNS OF INTRUSION (include photos): Possible sign of intrusion at broken fence.___________________________________ ________________________________________________________________________________________________________________________________________________ VEGETATIVE COVER INSPECTION Walk the surface of the Repository along at least 3 transects and walk the perimeter paying attention to the following: VEGETATIVE BARE SPOTS: __Small bare batches on northeast corner.__________________________________ ________________________________________________________________________________________________________________________________________________ WEED INFESTATIONS (presence & degree – include photos): _Minor presence of leafy spurge, cheatgrass and vetch.___________________________ ________________________________________________________________________________________________________________________________________________

EROSION INSPECTION This inspection can be part of the two inspections listed above. Describe location & severity of any cap damage. SIGNIFICANT SURFACE DEPRESSIONS that could accumulate water, include photos: _____None.______________________________________________________________ ________________________________________________________________________________________________________________________________________________ EXCESSIVE EROSION Rills & gullies > 2 inches of penetration (include location & degree, i.e. penetration depth, together with photographs): ______None._____________________________________________________________ ________________________________________________________________________________________________________________________________________________ Sloughing slopes ( “ ): ______None.____________________________________________________________ ________________________________________________________________________________________________________________________________________________ Undermined plant roots: ( “ ) or animal burrows: ______None._____________________________________________________________ PHOTOGRAPH LOG Photo # Photo Direction General Location Notes _See attached photo log in Appendix A._____________________________________ ________________________________________________________________________________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________________________________________________________________________________

SECOND SEMIANNUAL INSPECTION (ONLY)

STORMWATER DITCH Integrity (& any damage): _Intact with no damage.____________________________________________________ ________________________________________________________________________ ________________________________________________________________________

ANNUALLY – 2 DRY WELLS: Collect one (1) composited sample from the dry wells; analyze for PCBs only. Sample #:______________________________________________ Sample time: ___________________________________________ Notes:_________________________________________________ GENERAL COMMENTS _General condition of repository is good, need to repair fence on south side. _______________________________________________________________ ________________________________________________________________________________________________________________________________________________ ________________________________________________________________________ INSPECTOR INSPECTION DATE _Dan Hoffman, NewFields_______ ____6/15/16______________

Repository Annual Inspection Stimson’s Bonner Mill Site, Bonner, MT June 2016

Appendix A |A- 1

Photo 1. West slope looking NNE.

Photo 2. South slope looking N.


Appendix A |A- 2

Photo 3. NE corner from base, looking SW.

Photo 4. SW corner from base, looking E.


Appendix A |A- 3

Photo 5. Top from SE, looking SE.

Photo 6. SW corner from top, looking SW.


Appendix A |A- 4

Photo 7. SE corner from top, looking SE.

Photo 8. E slope from top, looking E.


Appendix A |A- 5

Photo 9. Top NE corner, looking NE.

Photo 10. Damaged fence near gate.

BONNER MILL SEPTEMBER 2016 SEMIANNUAL REPOSITORY INSPECTION

FORM PERIMETER FENCE INSPECTION Walk entire perimeter of fenceline/barrier, and indicate gaps, damage, loose wire tension, or poor condition, by perimeter location WOOD BRACE & CORNER POSTS: _____Good Condition.____________________________________________________ ________________________________________________________________________ ________________________________________________________________________ BARBED WIRE “FABRIC”: __ Good Condition – fence repaired since June visit._____________________________ ________________________________________________________________________________________________________________________________________________ WARNING SIGNS ALONG FENCE (placed ~ every 350 feet) Good Condition. ______________________________________________ ________________________________________________________________________________________________________________________________________________ GATE CONDITION & SECURITY: __Gate is locked, good condition._______________________ ________________________________________________________________________________________________________________________________________________ SIGNS OF INTRUSION (include photos): ___________None.________________________________________________________ ________________________________________________________________________________________________________________________________________________ VEGETATIVE COVER INSPECTION Walk the surface of the Repository along at least 3 transects and walk the perimeter paying attention to the following: VEGETATIVE BARE SPOTS: ___Small bare patches on northeast corner.____________________________ ________________________________________________________________________________________________________________________________________________ WEED INFESTATIONS (presence & degree – include photos): __Minor presence of leafy spurge, cheatgrass and vetch._______________

EROSION INSPECTION This inspection can be part of the two inspections listed above. Describe location & severity of any cap damage. SIGNIFICANT SURFACE DEPRESSIONS that could accumulate water, include photos: ________None.___________________________________________________________ ________________________________________________________________________________________________________________________________________________ EXCESSIVE EROSION Rills & gullies > 2 inches of penetration (include location & degree, i.e. penetration depth, together with photographs): _________ None. _________________________________________________________ ________________________________________________________________________________________________________________________________________________ Sloughing slopes ( “ ): __ None. ________________________________________________________________ ________________________________________________________________________________________________________________________________________________ Undermined plant roots: ( “ ) or animal burrows: ___ None. _______________________________________________________________ PHOTOGRAPH LOG Photo # Photo Direction General Location Notes _See attached photo log in Appendix B.________________________________________ ________________________________________________________________________________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________________________________________________________________________________

SECOND SEMIANNUAL INSPECTION (ONLY)

STORMWATER DITCH Integrity (& any damage): _Intact with no damage.__________________________________________ ________________________________________________________________________ ________________________________________________________________________

ANNUALLY – 2 DRY WELLS: Collect one (1) composited sample from the dry wells; analyze for PCBs only. Sample #:___SDW-1___________________________________________ Sample time: _1130__________________________________________ Notes:_Only one of the four dry wells contained water during the sampling event and was sampled. The Southwest well (SDW-1) was sampled by NewFields hydrologist Dan Hoffman with a disposable plastic bailer. The sample was stored on ice in a sample cooler and shipped directly to Energy Laboratories. Concentration of Aroclor 1254 was reported as 0.42 ug/L, all other results were non-detect. The reported concentration of Aroclor 1254 is below the Montana WQB-7 groundwater standard of 0.5 ug/L. A copy of the lab report is included as Appendix A. ______________ GENERAL COMMENTS ___Condition of repository is good, fence has been repaired.___________________ ________________________________________________________________________________________________________________________________________________ ________________________________________________________________________ INSPECTOR INSPECTION DATE _Dan Hoffman-NewFields_____ _____9/30/16_______

ANALYTICAL SUMMARY REPORT

The analyses presented in this report were performed by Energy Laboratories, Inc., 1120 S 27th St., Billings, MT 59101, unless otherwise noted. Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QA/QC Summary Report, or the Case Narrative.

The results as reported relate only to the item(s) submitted for testing.

If you have any questions regarding these test results, please call.

Lab ID Client Sample ID Collect Date Receive Date Matrix Test

Report Approved By:

B16100138-001 SDW-1 Stimson Southwest Dry Well

09/30/16 11:30 10/04/16 Aqueous Polychlorinated Biphenyls (PCB's)Separatory Funnel Liquid Liquid Ext.

NewFields

Project Name: Stimson PCB Repository

Work Order: B16100138

1120 Cedar St

Missoula, MT 59802-3911

October 07, 2016

Energy Laboratories Inc Billings MT received the following 1 sample for NewFields on 10/4/2016 for analysis.

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LABORATORY ANALYTICAL REPORT

Client: NewFields

Project: Stimson PCB Repository

Lab ID: B16100138-001

Client Sample ID: SDW-1 Stimson Southwest Dry Well

Collection Date: 09/30/16 11:30

Matrix: Aqueous

Report Date: 10/07/16

DateReceived: 10/04/16

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

POLYCHLORINATED BIPHENYLS (PCBS)

10/06/16 02:53 / jem0.50ug/LNDAroclor 1016 SW8082A





J 10/06/16 02:53 / jem0.50ug/L0.42Aroclor 1254 SW8082A




10/06/16 02:53 / jem44-130%REC89.0 Surr: Decachlorobiphenyl SW8082A

10/06/16 02:53 / jem40-110%REC83.0 Surr: Tetrachloro-m-xylene SW8082A

- Sample extract received a Sulfuric Acid Clean-up (EPA Method 3665) and a Sulfur Clean-up (EPA Method 3660) prior to analysis.

Report

Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

J - Estimated value. The analyte was present but less than the reporting limit.

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Project: Stimson PCB Repository

Client: NewFields

Work Order: B16100138

QA/QC Summary Report

10/07/16Report Date:

Analyte Result %REC RPDLow Limit High Limit RPDLimitRLUnits Qual

Prepared by Billings, MT Branch

Method: SW8082A Batch: 103282

Lab ID: MB-103282 10/06/16 01:33Method Blank Run: HECD.I_161005A

Aroclor 1016 0.50ND ug/L









Surr: Decachlorobiphenyl 102 44 1300.050

Surr: Tetrachloro-m-xylene 83 40 1100.050


Lab ID: AR1254-103282 10/06/16 01:59Laboratory Control Sample Run: HECD.I_161005A

Aroclor 1254 86 55 1320.508.64 ug/L




Lab ID: B16100138-001AMB 10/06/16 03:19Sample Matrix Spike Run: HECD.I_161005A

Aroclor 1254 92 55 1320.509.67 ug/L




Lab ID: B16100138-001ADB 10/06/16 03:46Sample Matrix Spike Duplicate Run: HECD.I_161005A

Aroclor 1254 90 55 132 400.50 2.69.42 ug/L




Qualifiers:

RL - Analyte reporting limit. ND - Not detected at the reporting limit.

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Shipping container/cooler in good condition?

Custody seals intact on all shipping container(s)/cooler(s)?

Custody seals intact on all sample bottles?

Chain of custody present?

Chain of custody signed when relinquished and received?

Chain of custody agrees with sample labels?

Samples in proper container/bottle?

Sample containers intact?

Sufficient sample volume for indicated test?

All samples received within holding time?(Exclude analyses that are considered field parameterssuch as pH, DO, Res Cl, Sulfite, Ferrous Iron, etc.)

Container/Temp Blank temperature:

Water - VOA vials have zero headspace?

Water - pH acceptable upon receipt?

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

No

No

No

No

No

No

No

R £

R

£

R

R

R

R

R

R

R

£

R

£

£

£

£

£

£

£

£

£

£

£

Not Present

Not Present

Not Present

£

£

R

Not Applicable

Not Applicable £

R

11.0°C On Ice

10/4/2016Tabitha Edwards

Return-UPS Ground

qej

Date Received:

Received by:

Login completed by:

Carrier name:

BL2000\lcadreau

10/5/2016

Reviewed by:

Reviewed Date:

Contact and Corrective Action Comments:

None

Temp Blank received in all shipping container(s)/cooler(s)? Yes No£ R Not Applicable £

Lab measurement of analytes considered field parameters that require analysis within 15 minutes of sampling such as pH, Dissolved Oxygen and Residual Chlorine, are qualified as being analyzed outside of recommended holding time.

Solid/soil samples are reported on a wet weight basis (as received) unless specifically indicated. If moisture corrected, data units are typically noted as –dry. For agricultural and mining soil parameters/characteristics, all samples are dried and ground prior to sample analysis.

Standard Reporting Procedures:

Work Order Receipt Checklist

NewFields B16100138

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Repository Annual Inspection Stimson’s Bonner Mill Site, Bonner, MT September 2016

Appendix B |B- 1

Photo 1. West slope looking NNE.

Photo 2. South slope looking N.


Appendix B |B- 2

Photo 3. NE corner from base, looking SW.

Photo 4. SW corner from base, looking E.


Appendix B |B- 3

Photo 5. Top from SE, looking SE.

Photo 6. SW corner from top, looking SW.


Appendix B |B- 4

Photo 7. SW Dry well, stormwater sample

collection site.

Photo 8. E slope from top, looking E.


Appendix B |B- 5

Photo 9. Top NE corner, looking NE.

Photo 10. Repaired fence near gate.

BONNER MILL JUNE 2016 SEMIANNUAL REPOSITORY …

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