Site Report: King Salmon AS GWZ 5 FT002 FTA 2

Site Name:	King Salmon AS GWZ 5 FT002 FTA 2
Address:	FT02 Fire Training Area 2, Groundwater Zone 5 (OT31), King Salmon, AK 99613
File Number:	2569.38.019.03
Hazard ID:	2840
Status:	Active
Staff:	Ginna Quesada, 9074515960 ginna.quesada@alaska.gov
Latitude:	58.674167
Longitude:	-156.635556
Horizontal Datum:	NAD27

We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.

Site Chronology
IC / Closure Details
Documents
Associated Sites

Problems/Comments

Groundwater Zone 5 (OT31). Fire Training Area No. 2 (FT02) is located on abandoned airfield pavement, approximately 800' north of the centerline of Runway 11/29. Operation dates from 1979 to 1989. Potential materials disposed include JP-4 and waste oil. Approximately 100 cubic yards of contaminated soil were removed in 1996, and treated in biocells. Air Force proposes a No Further Remedial Action Planned; draft decision documents have been prepared. Pathways: Soils to groundwater to aquatic resource; soils to direct contact; soils to atmosphere; soils to surface runoff via erosion. Site is accessible to humans. Ecological receptors are mammals and birds. Site entered by Shannon and Wilson. AF point of contact: Charley Peyton, Project Manager, 611th CES/CEV 10471 20th Street Suite 338, Elmendorf AFB, AK 99506-2270; Telephone 907-552-9765.

Action Information

Action Date	Action	Description	DEC Staff
9/15/1985	Preliminary Assessment Approved	Phase I - Records Search and Site Prioritization.	Former Staff
6/15/1986	Update or Other Action	Phase II - Task I Pre-Survey Report, Shemya Air Force Base and King Salmon Air Force Base.	Former Staff
3/15/1992	Update or Other Action	Report of Groundwater Monitoring Well Sampling and Analysis (dated July 31, 1992).	Louis Howard
9/15/1992	Update or Other Action	Comprehensive Site Investigation with September and October groundwater sampling programs.	Louis Howard
10/15/1992	Update or Other Action	Report of Groundwater Monitoring Well Sampling and Analysis (dated July 1993).	Louis Howard
10/15/1992	Update or Other Action	Groundwater monitoring performed October 1992 (dated April 7, 1993).	Louis Howard
12/15/1993	Update or Other Action	Analytical Results: Private Water Wells (dated March 1, 1994).	Louis Howard
5/15/1994	Update or Other Action	Analytical Results: Private Water Wells verification sampling program.	Louis Howard
6/30/1994	Update or Other Action	Basewide Groundwater Sampling Program.	Louis Howard
8/29/1995	Update or Other Action	Limited Field Investigation (dated June 1995). In the fall of 1993, the LFI was performed in conjunction with the ongoing RI/FS - the purpose of the LFI was to identify and evaluate 9 lower priority sites to assess possible environmental impacts.	Louis Howard
8/29/1995	Site Characterization Report Approved	Report, Installation Restoration Program, Remedial Investigation / Feasibility Study at 14 sites, Stage 3 Remedial Investigation studies conducted between October 1993 and December 1994 (final dated August 1995). Based on the results of the RI/FS and remedial actions completed prior to publication of the final RI/FS - the 2 Dry Wells, WACs, WAA#2, Road Oiling, and Landfill Number 2 sites did not require further investigation.	Louis Howard
6/15/1996	Update or Other Action	Final Installation-wide Environmental Baseline Survey.	Louis Howard
6/15/1996	Update or Other Action	Treatability Study and workplan for Fire Training Areas FT02 and FT03 (dated September 1995). No further response action planned documents were prepared for FT02 and FT03.	Louis Howard
10/15/1996	Update or Other Action	Final Field Report for Spring 1996, Final Human Food Chain, Aquatic Biota, and Wetlands Evaluation.	Louis Howard
11/15/1996	Update or Other Action	Aerial Photographic Analysis, King Salmon Airport Study Area. Prepared by EPA Region 10, Research and Development, Characterization, Research Division, TS-PIC-9710003S, dated November 1996.	Gretchen Pikul
1/15/1997	Update or Other Action	Preliminary Report, Final Human Food Chain, Aquatic Biota, and Wetlands Evaluation.	Gretchen Pikul
2/12/1997	Site Added to Database	Site added by Shannon and Wilson, Inc.	S&W-Miner
2/20/1997	Update or Other Action	Action added by Shannon and Wilson, Inc., on 2/20/97. Relative Risk Evaluation Worksheet dated 9/9/95 indicates that current phase is EE/CA - no appropriate code allowed in database, so used UPD.	S&W-Miner
3/15/1997	Update or Other Action	Feasibility Report (final revised) - dated March 1997. Preferred alternatives were identified for groundwater, wetlands, and soil in each 5 groundwater monitoring zones associated with the main base.	Gretchen Pikul
4/15/1997	Update or Other Action	King Salmon Residential Well Sampling Report November 1996 Sampling Event (dated March 1997, received April 1997).	Gretchen Pikul
5/6/1997	Update or Other Action	Feasibility Study Screening Assessment (draft dated May 1997).	Gretchen Pikul
8/5/1997	Update or Other Action	Management Action Plan report (draft dated December 1996, received March 1997, final dated June 1997, received August 1997).	Gretchen Pikul
8/12/1997	Update or Other Action	King Salmon Residential Well Sampling Report May 1997 Sampling Event (dated July 1997, received August 1997).	Gretchen Pikul
10/21/1997	Update or Other Action	RAPCON Excavation Activities and Summary of Findings, Fire Training Areas Numbers 1, 2, 3 and 4, King Salmon Airport (memorandum dated October 15, 1997).	Gretchen Pikul
9/4/1998	Update or Other Action	King Salmon Residential Well Sampling, August 1997 Sampling Event, Analytical Results and Data Evaluation (dated March 1998, received September 1998).	Gretchen Pikul
12/2/1998	Update or Other Action	Human Food Chain, Aquatic Biota, and Wetlands Evaluations, Technical Report (Volume I - Report Text and Tables, Volume II - Maps, Figures and Photographs, and Volume III - Analytical Laboratory Reports) (draft dated July 1997, final dated November 1998).	Gretchen Pikul
10/13/1999	Site Ranked Using the AHRM	Initial ranking.	Gretchen Pikul
11/28/2001	Update or Other Action	Remedial Process Optimization Scoping Visit Report - June 26-28, 2001 (no draft received; final received September 26, 2001 - many comments and issues to be resolved; comment resolution meeting during EPA Seattle meetings November 28, 2001).	Gretchen Pikul
1/8/2002	Update or Other Action	Management Action Plan (draft dated January 2001; ADEC comment letter dated April 3, 2001; response to comments received June 11, 2001; comment resolution meeting on August 29, 2001; final report dated October 2001 and received on January 8, 2002; not all comments documented within the response to comments as being addressed are addressed within the final report; discussions with the Air Force continue on this issue).	Gretchen Pikul
1/28/2003	GIS Position Updated	Updated Quadrangle, Latitude, Longitude, Section, Township, and Range fields using TopoZone.com and site maps.	Former Staff
7/3/2003	Update or Other Action	2002 King Salmon Air Station Monitoring Point Inventory CD (dated June 25 and received on July 3, 2003).	Gretchen Pikul
3/25/2004	Proposed Plan	Proposed Plan for Final Remedial Actions at Landfills and Fire Training Areas in Groundwater Zone 5; ADEC received electronic version via e-mail on November 12, 2003; general direction meeting on November 13; ADEC management briefing meeting on November 21; comment resolution meetings on November 24 and 25; draft final received December 12, 2003; PACAF and Air Staff comments received January 9, 2004; comment resolution meeting/teleconfernce with PACAF and Air Staff on January 22, 2004; comment resolution meeting with project managers on February 4, 2004; 2nd comment resolution teleconference / meeting with PACAF and Air Staff on March 11; ADEC received final Proposed Plan on March 25 and posted on ADEC webpage on March 30; Public comment period from March 27 to May 7, and public meeting on April 27.	Gretchen Pikul
6/8/2004	Update or Other Action	Fact Sheet for King Salmon Air Station Environmental Restoration Project; draft fact sheet received and ADEC comments sent on April 16; Air Force Comment Response received on May 25; final dated and received in June 2004.	Gretchen Pikul
7/20/2004	Update or Other Action	Implementation of Remedial Process Optimization (RPO) Recommendations Work Plan; draft dated and received in June 2004; ADEC comment letter dated June 28, 2004; Comment Response on July 9; comment resolution meeting on July 19; final received on July 20 (some errors are present – see Comment Response in work plan jacket for details).	Gretchen Pikul
10/7/2004	Update or Other Action	Record of Decision for Zone 5; preliminary meeting held on August 24, 2004; draft ROD received October 7 via e-mail.	Gretchen Pikul
11/15/2004	Meeting or Teleconference Held	Remedial Process Optimization (RPO) team met with Air Force, ADEC, and EPA at at contractor's office in San Antonio TX - November 8-12, 2004. The primary purpose of this meeting was to evaluate the current status of cleanup efforts at the King Salmon AS and draft the RPO report due in March 2005.	Jeff Norberg
6/16/2006	Update or Other Action	Implementation of Remedial Process Optimization (RPO) Recommendations Report; draft dated March 2005 received March 30, 2005; ADEC comment letter dated May 16, 2005; Air Force Comment Response and ADEC approval letter issued on May 20, 2005; final dated June 2006 received on June 16, 2006.	Jeff Norberg
1/31/2007	Update or Other Action	File number issued 2569.38.019.03.	Aggie Blandford
1/29/2008	Exposure Tracking Model Ranking	Initial ranking with ETM completed.	Jonathan Schick
4/14/2011	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved the Draft Work Plan for Monitoring Well Decommissioning and Repair for all sites across the King Salmon Installation.	Jonathan Schick
6/21/2011	Update or Other Action	Contaminated Sites Staff recieved responses to our comments on the Draft Work Plan for Monitoring Well Decommissioning and Repair. The responses were acceptable and the plan should be approved to be implemented in the field.	Jonathan Schick
6/23/2011	Update or Other Action	Contaminated Sites Staff recieved the Final Version of the Work Plan for Monitoring Well Decommissioning and Repair for all sites across King Salmon Air Station. The Comments from the Draft Version of the Plan were addressed in the response to comments and in the Final Version of the document.	Jonathan Schick
8/26/2011	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved the Summary Report for Monitoring Well Decommissioning and Repair for King Salmon. The monitoring wells that were worked on during this program were located in all of the groundwater zones and at many of the individual sites at the installation. The report contained a short narrative, but mostly presented the outcome of the program through before and after photographs for each well location where work was performed.	Jonathan Schick
8/29/2011	Document, Report, or Work plan Review - other	Contaminated Sites Staff submitted a letter to the AIr Force's Project Manager approving the final report for the Monitoring Well Decommissioning project. The report detailed the 2011 activites at the sites across many areas at King Salmon Air Station.	Jonathan Schick
11/8/2016	Update or Other Action	PFOS and PFOA are suspected at this site. The current Zone 5 ROD being drafted by the AF will not cover these emerging contaminants. A base-wide approach to managing PFOS and PFOA is currently in development.	Holly Weiss-Racine
12/7/2016	Document, Report, or Work plan Review - other	ADEC reviewed and provided comments on the draft Preliminary Assessment for PFCs at the King Salmon Divert. All Fire Training Areas are included in the report.	Holly Weiss-Racine
5/15/2018	Document, Report, or Work plan Review - other	ADEC approves the 'Final 2017 Five-Year Review, King Salmon Divert, Naknek Recreation Camp I, Naknek Recreation Camp II, Alaska, November 2017' in a letter dated May 15, 2018. Land Use Controls have not been fully implemented at any groundwater zones at King Salmon Divert. Recommendations include: finalizing the decision document for Zone 7, determine the extent of drinking water wells at Lake Camp (number of wells, depth of wells, and groundwater gradient), and fully implement LUCs by updating public land records for non-USAF owned properties. The next five-year review will be completed in 2022.	Sammi Castle
4/29/2019	Document, Report, or Work plan Review - other	ADEC received the Draft Uniform Federal Policy - Quality Assurance Project Plan for Site Inspections of Aqueous Film-Forming Foam Areas, dated April 2019. The purpose of the SI for King Salmon Divert is to evaluate whether a release of AFFF-derived PFAS has occurred to groundwater, soil (shallow and subsurface), surface water, and sediment as a result of historical AFFF use at 11 of the KSD AFFF areas: Building 160, Former Building 152, Building 300, Spray Test Area, Building 617, Eskimo Creek, Red Fox Creek, the Fire Training Areas (FT001, FT002, FT004), and the Former Landfarm and Holding Ponds. ADEC submitted comments on the draft work plan in a letter to the Air Force dated May 17, 2019.	Sammi Castle
8/2/2019	Document, Report, or Work plan Review - other	ADEC approved the Final Uniform Federal Policy - Quality Assurance Project Plan for Site Inspections of Aqueous Film-Forming Foam Areas, King Salmon Divert, dated July 2019, in a letter to the Air Force on this date.	Sammi Castle
3/11/2021	Document, Report, or Work plan Review - other	ADEC approved the Final Fire Training Areas - (FT001, FT002, FT003, and FT004) Expanded Remedial Investigation Work Plan, dated February 2021, in a letter on this date. Goals of the study include delineating the vertical and lateral extent of contaminants, including PFOS and PFOA, in soil, groundwater, sediment and surface water at the four fire training areas, and identifying potential risks from contaminants to human and ecological receptors.	Sammi Castle
6/30/2022	Risk Assessment Workplan Approved	The ADEC approved the King Salmon Divert (Groundwater Zones 1, 2, and 5) and Naknek II Screening-Level Ecological Risk Assessment Work Plan, Final (dated June 2022). The work plan describes the approach to conduct a phased Screening-Level Ecological Risk Assessment across various sites within Naknek II and Groundwater Zones 1, 2, and 5 areas located in King Salmon, Alaska. The objectives of this work plan are to quantitatively and/or qualitatively evaluate baseline or existing exposure and risks to ecological receptors from chemicals released into the environment during site operations. The work plan aims to address a total of seventeen sites for contaminants such as metals, petroleum hydrocarbons, volatile organic compounds, semivolatile organic compounds, polychlorinated biphenyls, per- and polyfluoroalkyl substances, pesticides, dioxins and furans.	Ginna Quesada
11/7/2022	Compliance Advisory Letter	ADEC issued compliance advisory letters to the USACE, USAF, and Jacobs to address violations of 18 AAC 75.325(i) and 18 AAC 75.370(b) by failing to obtain transport approval for investigation derived waste.	Ginna Quesada
5/18/2023	Site Visit	DEC conducted a site visit with the U.S. Air Force.	Ginna Quesada
2/22/2024	Document, Report, or Work plan Review - other	DEC reviewed the Remedial Investigation Report: Phase I AFFF Remedial Investigation (Groundwater Zones 1 and 2 Sites FFS, STA, CAC, CFS, WTP, and LHP) and Expanded Remedial Investigation (Groundwater Zone 5 Sites FT001/FT001P, FT002/FT002P, and FT004/FT004P) Draft, dated January 2024. The report describes the phase I remedial investigation efforts to delineate the extent of per and polyfluoroalkyl substances (PFAS) across nine sites in groundwater zones 1, 2, and 5 located in King Salmon, Alaska. PFAS exceedances of screening levels were encountered across all sites in groundwater, soil, sediment, and surface water. The report recommends a supplemental remedial investigation to further examine the risk and further characterize the extent of contamination for all nine sites.	Ginna Quesada
5/1/2024	Document, Report, or Work plan Review - other	DEC approved the Remedial Investigation Report: Phase I AFFF Remedial Investigation (Groundwater Zones 1 and 2 Sites FFS, STA, CAC, CFS, WTP, and LHP) and Expanded Remedial Investigation (Groundwater Zone 5 Sites FT001/FT001P, FT002/FT002P, and FT004/FT004P) Final, dated April 2024.	Ginna Quesada

Action Date

Action

Description

DEC Staff

9/15/1985

Preliminary Assessment Approved

Phase I - Records Search and Site Prioritization.

Former Staff

6/15/1986

Update or Other Action

Phase II - Task I Pre-Survey Report, Shemya Air Force Base and King Salmon Air Force Base.

Former Staff

3/15/1992

Update or Other Action

Report of Groundwater Monitoring Well Sampling and Analysis (dated July 31, 1992).

Louis Howard

9/15/1992

Update or Other Action

Comprehensive Site Investigation with September and October groundwater sampling programs.

Louis Howard

10/15/1992

Update or Other Action

Report of Groundwater Monitoring Well Sampling and Analysis (dated July 1993).

Louis Howard

10/15/1992

Update or Other Action

Groundwater monitoring performed October 1992 (dated April 7, 1993).

Louis Howard

12/15/1993

Update or Other Action

Analytical Results: Private Water Wells (dated March 1, 1994).

Louis Howard

5/15/1994

Update or Other Action

Analytical Results: Private Water Wells verification sampling program.

Louis Howard

6/30/1994

Update or Other Action

Basewide Groundwater Sampling Program.

Louis Howard

8/29/1995

Update or Other Action

Limited Field Investigation (dated June 1995). In the fall of 1993, the LFI was performed in conjunction with the ongoing RI/FS - the purpose of the LFI was to identify and evaluate 9 lower priority sites to assess possible environmental impacts.

Louis Howard

8/29/1995

Site Characterization Report Approved

Report, Installation Restoration Program, Remedial Investigation / Feasibility Study at 14 sites, Stage 3 Remedial Investigation studies conducted between October 1993 and December 1994 (final dated August 1995). Based on the results of the RI/FS and remedial actions completed prior to publication of the final RI/FS - the 2 Dry Wells, WACs, WAA#2, Road Oiling, and Landfill Number 2 sites did not require further investigation.

Louis Howard

6/15/1996

Update or Other Action

Final Installation-wide Environmental Baseline Survey.

Louis Howard

6/15/1996

Update or Other Action

Treatability Study and workplan for Fire Training Areas FT02 and FT03 (dated September 1995). No further response action planned documents were prepared for FT02 and FT03.

Louis Howard

10/15/1996

Update or Other Action

Final Field Report for Spring 1996, Final Human Food Chain, Aquatic Biota, and Wetlands Evaluation.

Louis Howard

11/15/1996

Update or Other Action

Aerial Photographic Analysis, King Salmon Airport Study Area. Prepared by EPA Region 10, Research and Development, Characterization, Research Division, TS-PIC-9710003S, dated November 1996.

Gretchen Pikul

1/15/1997

Update or Other Action

Preliminary Report, Final Human Food Chain, Aquatic Biota, and Wetlands Evaluation.

Gretchen Pikul

2/12/1997

Site Added to Database

Site added by Shannon and Wilson, Inc.

S&W-Miner

2/20/1997

Update or Other Action

Action added by Shannon and Wilson, Inc., on 2/20/97. Relative Risk Evaluation Worksheet dated 9/9/95 indicates that current phase is EE/CA - no appropriate code allowed in database, so used UPD.

S&W-Miner

3/15/1997

Update or Other Action

Feasibility Report (final revised) - dated March 1997. Preferred alternatives were identified for groundwater, wetlands, and soil in each 5 groundwater monitoring zones associated with the main base.

Gretchen Pikul

4/15/1997

Update or Other Action

King Salmon Residential Well Sampling Report November 1996 Sampling Event (dated March 1997, received April 1997).

Gretchen Pikul

5/6/1997

Update or Other Action

Feasibility Study Screening Assessment (draft dated May 1997).

Gretchen Pikul

8/5/1997

Update or Other Action

Management Action Plan report (draft dated December 1996, received March 1997, final dated June 1997, received August 1997).

Gretchen Pikul

8/12/1997

Update or Other Action

King Salmon Residential Well Sampling Report May 1997 Sampling Event (dated July 1997, received August 1997).

Gretchen Pikul

10/21/1997

Update or Other Action

RAPCON Excavation Activities and Summary of Findings, Fire Training Areas Numbers 1, 2, 3 and 4, King Salmon Airport (memorandum dated October 15, 1997).

Gretchen Pikul

9/4/1998

Update or Other Action

King Salmon Residential Well Sampling, August 1997 Sampling Event, Analytical Results and Data Evaluation (dated March 1998, received September 1998).

Gretchen Pikul

12/2/1998

Update or Other Action

Human Food Chain, Aquatic Biota, and Wetlands Evaluations, Technical Report (Volume I - Report Text and Tables, Volume II - Maps, Figures and Photographs, and Volume III - Analytical Laboratory Reports) (draft dated July 1997, final dated November 1998).

Gretchen Pikul

10/13/1999

Site Ranked Using the AHRM

Initial ranking.

Gretchen Pikul

11/28/2001

Update or Other Action

Remedial Process Optimization Scoping Visit Report - June 26-28, 2001 (no draft received; final received September 26, 2001 - many comments and issues to be resolved; comment resolution meeting during EPA Seattle meetings November 28, 2001).

Gretchen Pikul

1/8/2002

Update or Other Action

Management Action Plan (draft dated January 2001; ADEC comment letter dated April 3, 2001; response to comments received June 11, 2001; comment resolution meeting on August 29, 2001; final report dated October 2001 and received on January 8, 2002; not all comments documented within the response to comments as being addressed are addressed within the final report; discussions with the Air Force continue on this issue).

Gretchen Pikul

1/28/2003

GIS Position Updated

Updated Quadrangle, Latitude, Longitude, Section, Township, and Range fields using TopoZone.com and site maps.

Former Staff

7/3/2003

Update or Other Action

2002 King Salmon Air Station Monitoring Point Inventory CD (dated June 25 and received on July 3, 2003).

Gretchen Pikul

3/25/2004

Proposed Plan

Proposed Plan for Final Remedial Actions at Landfills and Fire Training Areas in Groundwater Zone 5; ADEC received electronic version via e-mail on November 12, 2003; general direction meeting on November 13; ADEC management briefing meeting on November 21; comment resolution meetings on November 24 and 25; draft final received December 12, 2003; PACAF and Air Staff comments received January 9, 2004; comment resolution meeting/teleconfernce with PACAF and Air Staff on January 22, 2004; comment resolution meeting with project managers on February 4, 2004; 2nd comment resolution teleconference / meeting with PACAF and Air Staff on March 11; ADEC received final Proposed Plan on March 25 and posted on ADEC webpage on March 30; Public comment period from March 27 to May 7, and public meeting on April 27.

Gretchen Pikul

6/8/2004

Update or Other Action

Fact Sheet for King Salmon Air Station Environmental Restoration Project; draft fact sheet received and ADEC comments sent on April 16; Air Force Comment Response received on May 25; final dated and received in June 2004.

Gretchen Pikul

7/20/2004

Update or Other Action

Implementation of Remedial Process Optimization (RPO) Recommendations Work Plan; draft dated and received in June 2004; ADEC comment letter dated June 28, 2004; Comment Response on July 9; comment resolution meeting on July 19; final received on July 20 (some errors are present – see Comment Response in work plan jacket for details).

Gretchen Pikul

10/7/2004

Update or Other Action

Record of Decision for Zone 5; preliminary meeting held on August 24, 2004; draft ROD received October 7 via e-mail.

Gretchen Pikul

11/15/2004

Meeting or Teleconference Held

Remedial Process Optimization (RPO) team met with Air Force, ADEC, and EPA at at contractor's office in San Antonio TX - November 8-12, 2004. The primary purpose of this meeting was to evaluate the current status of cleanup efforts at the King Salmon AS and draft the RPO report due in March 2005.

Jeff Norberg

6/16/2006

Update or Other Action

Implementation of Remedial Process Optimization (RPO) Recommendations Report; draft dated March 2005 received March 30, 2005; ADEC comment letter dated May 16, 2005; Air Force Comment Response and ADEC approval letter issued on May 20, 2005; final dated June 2006 received on June 16, 2006.

Jeff Norberg

1/31/2007

Update or Other Action

File number issued 2569.38.019.03.

Aggie Blandford

1/29/2008

Exposure Tracking Model Ranking

Initial ranking with ETM completed.

Jonathan Schick

4/14/2011

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved the Draft Work Plan for Monitoring Well Decommissioning and Repair for all sites across the King Salmon Installation.

Jonathan Schick

6/21/2011

Update or Other Action

Contaminated Sites Staff recieved responses to our comments on the Draft Work Plan for Monitoring Well Decommissioning and Repair. The responses were acceptable and the plan should be approved to be implemented in the field.

Jonathan Schick

6/23/2011

Update or Other Action

Contaminated Sites Staff recieved the Final Version of the Work Plan for Monitoring Well Decommissioning and Repair for all sites across King Salmon Air Station. The Comments from the Draft Version of the Plan were addressed in the response to comments and in the Final Version of the document.

Jonathan Schick

8/26/2011

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved the Summary Report for Monitoring Well Decommissioning and Repair for King Salmon. The monitoring wells that were worked on during this program were located in all of the groundwater zones and at many of the individual sites at the installation. The report contained a short narrative, but mostly presented the outcome of the program through before and after photographs for each well location where work was performed.

Jonathan Schick

8/29/2011

Document, Report, or Work plan Review - other

Contaminated Sites Staff submitted a letter to the AIr Force's Project Manager approving the final report for the Monitoring Well Decommissioning project. The report detailed the 2011 activites at the sites across many areas at King Salmon Air Station.

Jonathan Schick

11/8/2016

Update or Other Action

PFOS and PFOA are suspected at this site. The current Zone 5 ROD being drafted by the AF will not cover these emerging contaminants. A base-wide approach to managing PFOS and PFOA is currently in development.

Holly Weiss-Racine

12/7/2016

Document, Report, or Work plan Review - other

ADEC reviewed and provided comments on the draft Preliminary Assessment for PFCs at the King Salmon Divert. All Fire Training Areas are included in the report.

Holly Weiss-Racine

5/15/2018

Document, Report, or Work plan Review - other

ADEC approves the 'Final 2017 Five-Year Review, King Salmon Divert, Naknek Recreation Camp I, Naknek Recreation Camp II, Alaska, November 2017' in a letter dated May 15, 2018. Land Use Controls have not been fully implemented at any groundwater zones at King Salmon Divert. Recommendations include: finalizing the decision document for Zone 7, determine the extent of drinking water wells at Lake Camp (number of wells, depth of wells, and groundwater gradient), and fully implement LUCs by updating public land records for non-USAF owned properties. The next five-year review will be completed in 2022.

Sammi Castle

4/29/2019

Document, Report, or Work plan Review - other

ADEC received the Draft Uniform Federal Policy - Quality Assurance Project Plan for Site Inspections of Aqueous Film-Forming Foam Areas, dated April 2019. The purpose of the SI for King Salmon Divert is to evaluate whether a release of AFFF-derived PFAS has occurred to groundwater, soil (shallow and subsurface), surface water, and sediment as a result of historical AFFF use at 11 of the KSD AFFF areas: Building 160, Former Building 152, Building 300, Spray Test Area, Building 617, Eskimo Creek, Red Fox Creek, the Fire Training Areas (FT001, FT002, FT004), and the Former Landfarm and Holding Ponds. ADEC submitted comments on the draft work plan in a letter to the Air Force dated May 17, 2019.

Sammi Castle

8/2/2019

Document, Report, or Work plan Review - other

ADEC approved the Final Uniform Federal Policy - Quality Assurance Project Plan for Site Inspections of Aqueous Film-Forming Foam Areas, King Salmon Divert, dated July 2019, in a letter to the Air Force on this date.

Sammi Castle

3/11/2021

Document, Report, or Work plan Review - other

ADEC approved the Final Fire Training Areas - (FT001, FT002, FT003, and FT004) Expanded Remedial Investigation Work Plan, dated February 2021, in a letter on this date. Goals of the study include delineating the vertical and lateral extent of contaminants, including PFOS and PFOA, in soil, groundwater, sediment and surface water at the four fire training areas, and identifying potential risks from contaminants to human and ecological receptors.

Sammi Castle

6/30/2022

Risk Assessment Workplan Approved

The ADEC approved the King Salmon Divert (Groundwater Zones 1, 2, and 5) and Naknek II Screening-Level Ecological Risk Assessment Work Plan, Final (dated June 2022). The work plan describes the approach to conduct a phased Screening-Level Ecological Risk Assessment across various sites within Naknek II and Groundwater Zones 1, 2, and 5 areas located in King Salmon, Alaska. The objectives of this work plan are to quantitatively and/or qualitatively evaluate baseline or existing exposure and risks to ecological receptors from chemicals released into the environment during site operations. The work plan aims to address a total of seventeen sites for contaminants such as metals, petroleum hydrocarbons, volatile organic compounds, semivolatile organic compounds, polychlorinated biphenyls, per- and polyfluoroalkyl substances, pesticides, dioxins and furans.

Ginna Quesada

11/7/2022

Compliance Advisory Letter

ADEC issued compliance advisory letters to the USACE, USAF, and Jacobs to address violations of 18 AAC 75.325(i) and 18 AAC 75.370(b) by failing to obtain transport approval for investigation derived waste.

Ginna Quesada

5/18/2023

Site Visit

DEC conducted a site visit with the U.S. Air Force.

Ginna Quesada

2/22/2024

Document, Report, or Work plan Review - other

DEC reviewed the Remedial Investigation Report: Phase I AFFF Remedial Investigation (Groundwater Zones 1 and 2 Sites FFS, STA, CAC, CFS, WTP, and LHP) and Expanded Remedial Investigation (Groundwater Zone 5 Sites FT001/FT001P, FT002/FT002P, and FT004/FT004P) Draft, dated January 2024. The report describes the phase I remedial investigation efforts to delineate the extent of per and polyfluoroalkyl substances (PFAS) across nine sites in groundwater zones 1, 2, and 5 located in King Salmon, Alaska. PFAS exceedances of screening levels were encountered across all sites in groundwater, soil, sediment, and surface water. The report recommends a supplemental remedial investigation to further examine the risk and further characterize the extent of contamination for all nine sites.

Ginna Quesada

5/1/2024

Document, Report, or Work plan Review - other

DEC approved the Remedial Investigation Report: Phase I AFFF Remedial Investigation (Groundwater Zones 1 and 2 Sites FFS, STA, CAC, CFS, WTP, and LHP) and Expanded Remedial Investigation (Groundwater Zone 5 Sites FT001/FT001P, FT002/FT002P, and FT004/FT004P) Final, dated April 2024.

Ginna Quesada

Contaminant Information

Name

Level Description

Media

Comments

Control Type

Type

Details

Requirements

Description

Details

2016 Remedial Action/Long Term Management Report

No associated sites were found.

Missing Location Data

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Alaska Department of Environmental Conservation

Site Report: King Salmon AS GWZ 5 FT002 FTA 2

Site Chronology

IC / Closure Details

Documents

Associated Sites

Problems/Comments

Action Information

Contaminant Information

Control Type

Requirements

2016 Remedial Action/Long Term Management Report

Missing Location Data

State of Alaska Department of Environmental Conservation