Site Report: King Salmon AS GWZ 5 FT001 FTA 1 RAPCON

Site Name:	King Salmon AS GWZ 5 FT001 FTA 1 RAPCON
Address:	FT01 Fire Training Area 1, Includes RAPCON Area, King Salmon, AK 99613
File Number:	2569.38.019.01
Hazard ID:	505
Status:	Active
Staff:	Ginna Quesada, 9074515960 ginna.quesada@alaska.gov
Latitude:	58.680278
Longitude:	-156.640556
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, operation dates from 1982 to 1990. Potential materials disposed include JP-4 and waste oil. Petroleum and solvent (primarily TCE) contamination in soils and groundwater. Site has impacted Red Fox Creek (currently on the 303d list of impaired water bodies). In 1995, approximately 2,025 cubic yards of contaminated soil was removed at FTA No. 1. In 1997, approximately 3,600 cubic yards of contaminated soil was removed at RAPCON. The contaminated soil was treated in the facility biocells and reused on LF06 in 1999, and subsequent years as contaminated soil in the biocells become remediated and meet cleanup levels. A biovent/air sparge remediation system was installed at RAPCON in 1998 to treat soil and groundwater contamination. The system operates intermittently until 2002, when the system was converted to a bioventing system. Not all of the well points were able to be converted, and additional points are scheduled to be added to the system in 2003. Point of contact: Todd Fickel, Project Manager, 611th CES/CEV 10471 20th Street Suite 338, Elmendorf AFB, AK 99506-2270; Telephone (907) 552-7439. Last staff assigned Norberg (907) 269-3077.

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
7/15/1992	Update or Other Action	Remedial Investigation / Feasibility Study at Eleven Sites, final report (3 volumes, dated September 1993).	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	King Salmon Air Station, Analytical Results: Private Water Wells (dated March 1, 1994).	Louis Howard
3/31/1994	Site Ranked Using the AHRM	Initial ranking.	Louis Howard
5/2/1994	Site Added to Database	Gasoline range organics.	Louis Howard
5/15/1994	Update or Other Action	King Salmon Air Station, Analytical Results: Private Water Wells verification sampling program.	Louis Howard
6/15/1994	Risk Assessment Report Approved	Human Health and Ecological Risk Assessment (dated June 1995). FTA #1 and Lower and Upper Naknek Seeps were the only areas which posed a threat to human health. The Ecological Risk Assessment results indicated that chemicals in soil and water posed threats to Eskimo Creek, Refueler Shop, WACs, North/South Bluffs, Upper/Lower Naknek Seeps, and FTA #1.	Louis Howard
6/30/1994	Update or Other Action	Basewide Groundwater Sampling Program.	Louis Howard
7/15/1994	Update or Other Action	Trip Report, Groundwater Monitoring Event, King Salmon Air Station, September - October (dated June 14, 1995). This program was designed to supplement previous RI/FS efforts and to complete the RI/FS process on selected sites. In June and July 1994, a groundwater sampling program was initiated in which groundwater sampling of a representative network of base-wide monitoring wells took place.	Louis Howard
7/15/1995	Interim Removal Action Approved	Final Source Investigation and Removal Action at Fire Training Area Number 1 (dated April 1996). Excavation of 2,025 cubic yards of contaminated soil above the groundwater table and backfilled with clean soil. Impacted soil were still present below the groundwater table. Excavated contaminated soil was transported to bioremediation cells for treatment.	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
9/7/1995	Update or Other Action	(Old R:Base Action Code = RI - Remedial Investigation). RI action added by Shannon and Wilson on 3/14/1997, based on Relative Risk Evaluation Worksheet dated 9/7/95. Groundwater pathway to Red Fox Creek. Ecological pathway to small mammals exists thru contaminated surface soils. Receptors: contaminants are reaching receptors at surface soils and Red fox Creek to the Naknek River.	S&W-Miner
5/15/1996	Update or Other Action	Intrinsic Remediation Treatability Study for Site FT01, King Salmon Airport (draft dated May 1996). Prepared for AFCEE and Elmendorf Air Force Base.	Louis Howard
6/15/1996	Update or Other Action	Final Installation-wide Environmental Baseline Survey.	Louis Howard
6/15/1996	Update or Other Action	Final Human Food Chain, Aquatic Biota, and Wetlands Evaluation workplan.	Louis Howard
9/15/1996	Update or Other Action	Treatability Study workplan for Fire Training Areas FT01 and FT04 (final dated September 1996). Excavation and off site bioremediation of soil, instrinsic remediation of groundwater, and managed wetlands were recommended for FT01 and vicinity (RAPCON). Intrinsic remediation for soil and groundwater was recommended for FT04.	Louis Howard
10/15/1996	Update or Other Action	Final Field Report for Spring 1996, Final Human Food Chain, Aquatic Biota, and Wetlands Evaluation report.	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
12/6/1996	Update or Other Action	Community Relations Plan for King Salmon Airport and Naknek Recreation Camps 1 and 2 (draft dated December 1996, final dated May 1997).	Gretchen Pikul
1/15/1997	Update or Other Action	Preliminary Report, Human Food Chain, Aquatic Biota, and Wetlands Evaluation.	Gretchen Pikul
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	Final Treatability Study Report for FT01 and Vicinity (draft dated January 1997, final dated April 1997) and Feasibility Study Screening Assessment (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
8/19/1997	Update or Other Action	Technical Report Modeling to Support Reuse of Diesel Contaminated Soil at the RAPCON Site (dated August 19, 1997).	Gretchen Pikul
10/21/1997	Update or Other Action	Technical Memorandum for Fire Training Areas 1 and 4, Summary of Findings and Recommendations May 1997 Groundwater Sampling Event (dated September 3, 1997).	Gretchen Pikul
10/21/1997	Interim Removal Action Approved	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
3/25/1998	Update or Other Action	King Salmon Residential Well Sampling Report November 1997 Sampling Event (dated and received March 1998).	Gretchen Pikul
4/27/1998	Update or Other Action	King Salmon, Naknek and South Naknek Native Villages Site Assessment Report (draft dated March 1998, received April 1998, no final received).	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
10/15/1998	Update or Other Action	Environmental Assessment SuperDARN Radar Installation, King Salmon Airport (draft dated October 1998, no final received).	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
3/30/1999	Meeting or Teleconference Held	Seattle meeting with trustees on fish study previous results and follow-on workplan.	Gretchen Pikul
3/16/2000	Update or Other Action	King Salmon Airport Restoration Advisory Board Orientation Manual (final dated April 1999 and received March 16, 2000).	Gretchen Pikul
8/21/2000	Update or Other Action	General Plan, 611th Air Support Group, Remote Alaska Sites, Volumes 1, 2, and 3 CD version only (dated March 2000 and received August 21). Portion of Bluffs IC established.	Gretchen Pikul
7/17/2001	Update or Other Action	Work Plan - Remediation Systems - 2001 Operation and Monitoring (draft dated July 2, 2001 and received on July 12, 2001; ADEC comment letter dated July 17, 2001; ADEC approval letter dated August 9, 2001; final not received).	Gretchen Pikul
9/26/2001	Update or Other Action	Restoration Advisory Board Pocket Guide and Community Outreach Handbook (ADEC comment letter dated May 30, 2001; final dated September 2001).	Gretchen Pikul
10/23/2001	Leaking Underground Storage Tank Corrective Action Underway	Underground Storage Tank and Pipeline Monitoring Report (draft dated February 1999; ADEC comment letter dated May 14, 1999; review draft dated March 30, 2000; comment resolution meeting on April 11, 2000; final dated April 11, 2001 and received October 23, 2001).	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
11/29/2001	Meeting or Teleconference Held	Meeting with Air Force, ADEC, and EPA at EPA Seattle office - November 26-29, 2001.	Gretchen Pikul
12/13/2001	Update or Other Action	Work Plans for 2001 Comprehensive Environmental Monitoring Projects at: North and South Bluffs (Zone 3); Naknek River Storage Area (Zone 4); Rapids Camp (Zone 6); Biovent and AS/SVE Monitoring at 6 Remediation Sites (4 in Zone 2, 1 at RAPCON - FT01, and 1 at MOGAS - SS19); and Soil Biocell Number 7 Cleanup Verification - (drafts dated and received in July 2001; ADEC comment letters dated July 2001; ADEC approval letters dated July and August 2001; final dated November 28, 2001 and received on December 13, 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
4/15/2002	Update or Other Action	Remediation Systems, 2001 Operation, Monitoring, and Maintenance, Biovent and AS/SVE Systems at Six Remediation Sites - draft dated March 12, 2002 and received March 21, 2002; ADEC comment letter dated April 15, 2002.	Gretchen Pikul
4/15/2002	Update or Other Action	Remediation System Operation, Monitoring, and Maintenance Manual at Six Remediation Sites - draft dated February 22, 2002 and received March 21, 2002; ADEC comment letter dated April 15, 2002.	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
3/11/2003	Update or Other Action	Remediation System Operation, Monitoring, and Maintenance Manual at Six Remediation Sites - draft dated February 22, 2002 and received March 21, 2002; ADEC comment letter dated April 15, 2002; final dated December 23, 2002 and received March 11, 2003.	Gretchen Pikul
3/11/2003	Update or Other Action	Technical Report – Remediation Systems 2001 Operation, Monitoring and Maintenance Biovent and AS/SVE Systems at Six Remediation Sites final dated December 20, 2002 and received on March 11, 2003. Also, Remediation System Operation, Monitoring, and Maintenance Manual at Six Remediation Sites; final dated December 23, 2002 and received on March 11, 2003.	Gretchen Pikul
6/23/2003	Update or Other Action	Monthly Status Reports for Bioventing Systems for March, April, May, and June 2003 (dated June 20 and received on June 23, 2003).	Gretchen Pikul
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
10/1/2003	Update or Other Action	Technical Report Remediation Systems 2002 Operation, Monitoring, and Maintenance Bioventing Systems at Six Remediation Sites (draft dated and received in August 2003; ADEC comment letter dated September 11, 2003; final dated and received October 1, 2003).	Gretchen Pikul
11/13/2003	Update or Other Action	Monthly Status Reports for Bioventing Systems - August through November 2003 (dated November 13, 2003).	Gretchen Pikul
1/16/2004	Update or Other Action	December 2003 Monthly Status Report for Bioventing Systems (electronic version dated and received on January 16, 2004).	Gretchen Pikul
2/4/2004	Meeting or Teleconference Held	Meeting on Air Force compliance projects and actions needed to gain closure, including biovent systems, former marina, and former POL pipeline.	Gretchen Pikul
2/27/2004	Update or Other Action	February 2004 Monthly Status Report for Bioventing Systems (dated February 17, 2004 and received by ADEC via e-mail on February 27).	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
4/1/2004	Update or Other Action	Remediation Systems 2003 Operation, Monitoring and Maintenance at Six Remediation Sites Work Plan Addendum; 1st draft dated and received in July 2003; ADEC comment letter dated August 8, 2003; ADEC approval letter dated August 19, 2003; 2nd draft dated and received on January 9, 2004; ADEC comment letter dated February 13, 2004; Air Force Comment Response received March 31, 2004; and ADEC approval letter dated April 1, 2004.	Gretchen Pikul
4/22/2004	Update or Other Action	Field Sampling Plan Addendum 2003 Environmental Restoration Program at Main Base Area (Groundwater Zone 1 - OT027), North and South Bluffs (Groundwater Zone 3 - OT029), Naknek River Storage Area (Groundwater Zone 4 - OT030), Rapids Camp Landfill (Groundwater Zone 6 - OT032), Red Fox Creek (Groundwater Zone 5 - OT031), and Bioventing Operations at Six Remediation Sites (draft dated and received in July 2003; ADEC comment letter dated July 28, 2003; ; final received April 22, 2004).	Gretchen Pikul
4/22/2004	Update or Other Action	Quality Assurance Project Plan for Sites: Main Base Area (Groundwater Zone 1 – OT027), North and South Bluffs (Groundwater Zone 3 – OT029), Naknek River Storage Area (Groundwater Zone 4 – OT030), Rapids Camp Landfill (Groundwater Zone 6 – OT032), Red Fox Creek (Groundwater Zone 5 – OT031), and Bioventing Operations at Six Remediation Sites (draft dated July 30 and received August 1, 2003; ADEC conditional approval letter dated Ausut 8, 2003;; final received April 22, 2004).	Gretchen Pikul
5/6/2004	Update or Other Action	March 2004 Monthly Status Reports for Bioventing Systems at King Salmon Air Station (dated May 6, 2004).	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
6/18/2004	Update or Other Action	May and June 2004 Monthly Status Reports for Bioventing Systems (dated and received on June 18, 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
8/9/2004	Update or Other Action	2004 Work Plan Addendums: 2004 Remediation Systems Operation, Monitoring, and Maintenance at Seven Remediation Sites; draft dated July 30 and received on August 5, 2004; ADEC comment letter/conditional approval letter dated August 9, 2004; Air Force Comment Response received August 26 and ADEC sent e-mail on August 27 stating that Comment Response is acceptable and referred to ADEC conditional approval letter dated August 9, 2004.	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
8/25/2005	Update or Other Action	Technical Report Remediation Systems 2003 Operation, Monitoring, and Maintenance Bioventing Systems at Six Remediation Sites; final draft dated and received in February 2005; ADEC comment letter dated April 25; Response to Comments June 16; ADEC approval letter July 12; final dated August 5, 2005 received August 25.	Jeff Norberg
9/1/2005	Update or Other Action	Work Plan Addendum - Remediation Systems 2005 Operation, Monitoring, and Maintenance at Two Remediation Sites; draft dated July 21, 2005 received July 28; ADEC comment letter September 1.	Jeff Norberg
10/25/2005	Update or Other Action	Field Sampling Plan Addendum - 2005 Environmental Restoration Program; draft dated August 15, 2005 received August 18; ADEC comment letter September 1; comment resolution meeting held September 7; ADEC approval letter issued October 25.	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 2569.38.019.01 (RAPCON) and 2569.38.019.02 (FT01).	Aggie Blandford
1/29/2008	Exposure Tracking Model Ranking	Initial ranking with ETM completed.	Jonathan Schick
4/15/2008	Site Visit	ADEC staff conducted a site visit to a large number of pertinent sites at King Salmon Air Station over a 3 day visit. Sites were inspected for any visible evidence of contamination and potential sampling locations. ADEC staff was accompanied to all of the sites by the Project managers from the USAF and thier contractors. A RAB meeting was held during the site visit.	Jonathan Schick
4/15/2008	Update or Other Action	ADEC staff participated in a Restoration Advisory Board meeting at the King Salmon Air Station. Community members are encouraged to attend and view a presentation of the most recent sampling program where data is available. Main topics discussed were the TCE plume that is in Groundwater Zone 1 where a treatibility study is being conducted to see the possible influence of adding an enhanced in-situ bioremediation product that is engineered to break down chlorinated solvents. The other main topic discussed was the results from the basewide monitoring event at all of the Groundwater Zones from 2007.	Jonathan Schick
5/6/2008	Update or Other Action	See also file number 2569.38.019.02.	Nicole Hurt
10/13/2008	Exposure Tracking Model Ranking	Initial ranking with ETM completed for source area id: 71484 name: auto-generated pm edit King Salmon Air Station FT01/RAPCON	Jonathan Schick
10/21/2008	Site Visit	ADEC staff took part in a site visit to a number of pertinent sites at King Salmon Air Station over a 2 day visit. Sites, especially the pending Multi Site Inspection sites, were inspected for any visible evidence of contamination and potential sampling locations as the work plans are still being formulated. ADEC staff was accompanied to all of the sites by the Project managers from the USAF and thier contractors. A Restoration Advisory Board meeting was held during the site visit. The topics discussed included the most recent basewide monitoring program, a discussion of the Multi-SIte inspection project, an update on the status of the Groundwater Zone 5 Records of Decision, and a brief discussion concerning the TCE treatibility Study in Groundwater Zone 1. The next RAB meeting has been tentatively scheduled for April 21, 2009.	Jonathan Schick
10/22/2008	Document, Report, or Work plan Review - other	ADEC recieved a copy of the Draft 2007 Comprehensive Environmental Monitoring Report covering Groundwater Zones 1, 2, 3, 4, and RAPCON and Red Fox Creek. It is dated October 2008 and is under review by the State.	Jonathan Schick
3/6/2009	Update or Other Action	ADEC recieved a copy of the 2008 Biovent tatus Report for the RAPCON site. 2 of the three blowers were in operation through the past year with only minor power interruptions. One of the blowers failed and the motor burned out. The site has been remediated to the extent practical because the contamination is limited to the smear zone. Therefore the recommendation is to discontinue the Bioventing system at the year's end, and so not to replace the bunt out blower.	Jonathan Schick
4/21/2009	Update or Other Action	ADEC staff conducted a site visit to pertinent sites at King Salmon Air Station over a 2 day visit. Sites were inspected for any visible evidence of contamination and to become more familiar with the layout and topography of the area. ADEC staff was accompanied to all of the sites by the Project manager from the USAF and thier contractors. A Restoration Advisory Board meeting was held during the site visit. The topics discussed included the most recent basewide monitoring program, a discussion of the Multi-Site inspection project which is entering Phase II this summer, an update on the status of the Groundwater Zone 5 Records of Decision, and a brief discussion concerning the TCE treatibility Study in Groundwater Zone 1. The next RAB meeting has been tentatively scheduled for October, 2009.	Jonathan Schick
8/6/2009	Update or Other Action	ADEC submitted comments to the USAF on the Draft Work Plan for long term monitoring at RAPCON within Groundwater Zone 5.	Jonathan Schick
8/10/2009	Update or Other Action	ADEC staff sent a letter to the USAF approving the implementation of the 2009 RAPCON long term monitoring work plan in the field.	Jonathan Schick
10/26/2009	Site Visit	ADEC staff traveled to King Salmon with the new RPM for the King Salmon Air Station to tour the sites and look at the excavations that were completed during the 2009 field season. Several sites were inspected and overall the sites appeared to be secured with orange snow fencing and visqueen covering the stockpiles to prevent ponding and migration of contaminants. While in King Salmon staff attended and participated in a Restoration Advisory Board Meeting to meet with the public of King Salmon and discuss the results from the latest round of base-wide sampling and to discuss the progress of the excavations that were conducted during the summer.	Jonathan Schick
10/26/2009	Site Visit	ADEC staff traveled to King Salmon with the new RPM for the King Salmon Air Station to tour the sites and look at the excavations that were completed during the 2009 field season. Several sites were inspected and overall the sites appeared to be secured with orange snow fencing and visqueen covering the stockpiles to prevent ponding and migration of contaminants. While in King Salmon staff attended and participated in a Restoration Advisory Board Meeting to meet with the public of King Salmon and discuss the results from the latest round of base-wide sampling and to discuss the progress of the excavations that were conducted during the summer.	Jonathan Schick
8/10/2010	Document, Report, or Work plan Review - other	ADEC recieved a Draft version of the work plan for 2010 Monitoring Program for RAPCON and Red FOx Creek. Surface water and sediment samples will be collected from 4 locations in the wetlands and tributary leading to Red Fox Creek. Groundwater samples will be collected from the established network of 6 monitoring wells.	Jonathan Schick
8/13/2010	Document, Report, or Work plan Review - other	ADEC submitted comments on the Draft Work Plan for monitoring at RAPCON and Red Fox Creek. The main concerns for ADEC were that there was a reference to a Final Record of Decision for the site and that document is still in Draft form. Also there was a reference to the "ten times" rule which does not apply to sites in Groundwater Zone 5 so that part of the sentence was requested to be removed.	Jonathan Schick
8/17/2010	Site Characterization Workplan Approved	ADEC submitted a letter to the USAF approving the implementation of the Final Work plan for 2010 MOnitoring program for RAPCON and Red Fox Creek.	Jonathan Schick
10/20/2010	Update or Other Action	ADEC staff conducted a site visit to pertinent sites at King Salmon Air Station over a 2 day visit. Sites were inspected for any visible evidence of contamination and to observe some of the work that is being conducted to remove POL impacted soils and PCB impacted soils at OT010. ADEC staff was accompanied to all of the sites by the Project manager from the USAF and thier contractors. A Restoration Advisory Board meeting was held during the site visit. The topics discussed included the most recent basewide monitoring program, remedial action cleanup programs, and management of the IDW and soil in the biocells set up to add oxygen to the soil matrix to aid the degradation of the petroleum hydrocarbons. The next RAB meeting is scheduled for April 2011.	Jonathan Schick
1/5/2011	Update or Other Action	Contaminated Sites Staff recieved the Final Version of the Work Plans for Comprehensive Environemtnal Monitoring across all of the groundwater zones at King Salmon Air Station including RAPCON/Red Fox Creek. Surface water and sediment sampling was scheduled to be conducted in several of the areas of concern as well as the analysis of groundwater samples. The Work Plan is dated August 2010.	Jonathan Schick
3/31/2011	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved the Draft version of the 2010 Comprehensive Environmental Monitoring Report for groundwater and surface water sampling at all of the zones at the King Salmon Air Station. The report was dated March 2011.	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
6/6/2011	Update or Other Action	Contaminated Sites Staff submitted comments to the US Air Force Remedial Project Manager regarding the 2011 Work plans for Comprehensive Environmental Monitoring Projects for Groundwater Zones 1-4 and RAPCON and Red Fox Creek. Our concerns were regarding several drums that have been stored within the bioremediation cells and also the need for an Explanation of Significant Differences for the South Bluffs Treatment System.	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	Document, Report, or Work plan Review - other	Contaminated Sites Staff submitted a letter to the AIr Force's Remedial Project Manager for King Salmon approving the Work Plan for Monitoring Well Decommissioning and Repair across the King Salmon Installation. The work is scheduled to be conducted in July of 2011.	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
11/3/2011	Document, Report, or Work plan Review - other	Contamianted Sites Staff submitted comments to the US Air Force Remedial Project Manager on the Draft 2010 Comprehensive Environmental Monitoring Report. The report covered the groundwater and surface water sampling at each of the 5 groundwater zones at King Salmon Air Station. THe main issues with the report was the inconsistencies with the work plan regarding the number and location of wells to sample.	Jonathan Schick
12/4/2011	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved Responses to our comments on the Draft 2010 Comprehensive Environmental Monitoring Report for the 5 groundwater zones at King Salmon. The majority of the responses were acceptable but there were several technical issues that will still need to be resolved before the report can be finalized.	Jonathan Schick
12/9/2011	Document, Report, or Work plan Review - other	Contaminated Sites Staff submitted a letter to the US Air Force Remedial Project Manager regarding the remaining technical issues with the Draft 2010 Comprehensive Environmental Monitoring Report. The issues should be amended before the report can be finalized.	Jonathan Schick
1/19/2012	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved a revised version of the 2010 Comprehensive Environmental Monitoring Report. The revisions incorporated the requested amendments from the draft and the report should be finalized.	Jonathan Schick
3/20/2012	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved the Draft Work Plan for Preliminary Assessments/Site Inspections for Cape Newenham, Cape Lisburne, Indian Mountain, Tatalina LRRS, and King Salmon Air Station.	Jonathan Schick
4/3/2012	Meeting or Teleconference Held	Contaminated Sites Staff met with members of the Remedial Project team from the US Air Force and their consultants and discussed the comments on the Draft Work Plan for Preliminary Assessments/Site Inspections for Cape Newenham, Cape Lisburne, Indian Mountain, Tatalina LRRS, Eareckson Air Station, and King Salmon Air Station. The main concerns were that the work plans were developed without input on the scope of work from the regulator and that the limited scope did not allow for sampling of the necessary constituents to properly characterize sites where fuels were not the only concern.	Jonathan Schick
5/14/2012	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved the Final versions of the Work Plan for Preliminary Assessments/Site Inspections for Cape Newenham, Cape Lisburne, Indian Mountain, Tatalina LRRS, and King Salmon Air Station.	Jonathan Schick
5/24/2012	Document, Report, or Work plan Review - other	Contaminated Sites Staff recieved the Final Version of the 2010 Comprehensive Environmental Monitoring Report dated May 2012 for King Salmon Air Station that covers the groundwater and surface water monitoring at each of the 5 groundwater zones at the Air Station.	Jonathan Schick
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
6/4/2019	Document, Report, or Work plan Review - other	ADEC received the draft Remedial Action-Construction Report, Naknek River Tidal Zone, dated May 2019. This report details the remediation activities conducted at the Naknek River Tidal Zone (SS012), South Barrel Bluff (LF005), and SA039-DR16 sites, and the sampling of drums containing waste from past remedial activities that were stored in the Biocell/Landfarm Staging Area (drum contents were from DA031, SA036, SA039, FT001, and unknown sources). ADEC submitted comments on the draft report in a letter to the Air Force dated July 10, 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
4/1/2021	Document, Report, or Work plan Review - other	ADEC approved the USAF RAPCON Building, 1CY Soil Excavation Report, dated April 1, 2021, in a letter dated April 1, 2021. This summary report describes the sampling, excavation, and removal of one cubic yard of petroleum, oil, and lubricants (POL) contaminated soil encountered during demolition activities at the RAPCON Building 560.	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
6/5/2023	Document, Report, or Work plan Review - other	DEC reviewed and provided comments regarding the Draft 2022 Remedial Action Operations & Land Use Control Inspections, Base Living Area – Zone 1 (OT027), Base Industrial Area & LF022 – Zone 2 (OT028), North and South Bluffs – Zone 3 (OT029), Naknek River Storage Area – Zone 4 (OT030), RAPCON & Red Fox Creek – Zone 5 (OT031), Naknek Rec Camp I, Naknek Rec Camp II, King Salmon Divert, Alaska, dated May 2023. The report describes the field activities conducted during the 2022 field season and summarizes the analytical data. The report recommended continued monitoring and land use control inspections for all the sites.	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

7/15/1992

Update or Other Action

Remedial Investigation / Feasibility Study at Eleven Sites, final report (3 volumes, dated September 1993).

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

King Salmon Air Station, Analytical Results: Private Water Wells (dated March 1, 1994).

Louis Howard

3/31/1994

Site Ranked Using the AHRM

Initial ranking.

Louis Howard

5/2/1994

Site Added to Database

Gasoline range organics.

Louis Howard

5/15/1994

Update or Other Action

King Salmon Air Station, Analytical Results: Private Water Wells verification sampling program.

Louis Howard

6/15/1994

Risk Assessment Report Approved

Human Health and Ecological Risk Assessment (dated June 1995). FTA #1 and Lower and Upper Naknek Seeps were the only areas which posed a threat to human health. The Ecological Risk Assessment results indicated that chemicals in soil and water posed threats to Eskimo Creek, Refueler Shop, WACs, North/South Bluffs, Upper/Lower Naknek Seeps, and FTA #1.

Louis Howard

6/30/1994

Update or Other Action

Basewide Groundwater Sampling Program.

Louis Howard

7/15/1994

Update or Other Action

Trip Report, Groundwater Monitoring Event, King Salmon Air Station, September - October (dated June 14, 1995). This program was designed to supplement previous RI/FS efforts and to complete the RI/FS process on selected sites. In June and July 1994, a groundwater sampling program was initiated in which groundwater sampling of a representative network of base-wide monitoring wells took place.

Louis Howard

7/15/1995

Interim Removal Action Approved

Final Source Investigation and Removal Action at Fire Training Area Number 1 (dated April 1996). Excavation of 2,025 cubic yards of contaminated soil above the groundwater table and backfilled with clean soil. Impacted soil were still present below the groundwater table. Excavated contaminated soil was transported to bioremediation cells for treatment.

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

9/7/1995

Update or Other Action

(Old R:Base Action Code = RI - Remedial Investigation). RI action added by Shannon and Wilson on 3/14/1997, based on Relative Risk Evaluation Worksheet dated 9/7/95. Groundwater pathway to Red Fox Creek. Ecological pathway to small mammals exists thru contaminated surface soils. Receptors: contaminants are reaching receptors at surface soils and Red fox Creek to the Naknek River.

S&W-Miner

5/15/1996

Update or Other Action

Intrinsic Remediation Treatability Study for Site FT01, King Salmon Airport (draft dated May 1996). Prepared for AFCEE and Elmendorf Air Force Base.

Louis Howard

6/15/1996

Update or Other Action

Final Installation-wide Environmental Baseline Survey.

Louis Howard

6/15/1996

Update or Other Action

Final Human Food Chain, Aquatic Biota, and Wetlands Evaluation workplan.

Louis Howard

9/15/1996

Update or Other Action

Treatability Study workplan for Fire Training Areas FT01 and FT04 (final dated September 1996). Excavation and off site bioremediation of soil, instrinsic remediation of groundwater, and managed wetlands were recommended for FT01 and vicinity (RAPCON). Intrinsic remediation for soil and groundwater was recommended for FT04.

Louis Howard

10/15/1996

Update or Other Action

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

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

12/6/1996

Update or Other Action

Community Relations Plan for King Salmon Airport and Naknek Recreation Camps 1 and 2 (draft dated December 1996, final dated May 1997).

Gretchen Pikul

1/15/1997

Update or Other Action

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

Gretchen Pikul

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

Final Treatability Study Report for FT01 and Vicinity (draft dated January 1997, final dated April 1997) and Feasibility Study Screening Assessment (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

8/19/1997

Update or Other Action

Technical Report Modeling to Support Reuse of Diesel Contaminated Soil at the RAPCON Site (dated August 19, 1997).

Gretchen Pikul

10/21/1997

Update or Other Action

Technical Memorandum for Fire Training Areas 1 and 4, Summary of Findings and Recommendations May 1997 Groundwater Sampling Event (dated September 3, 1997).

Gretchen Pikul

10/21/1997

Interim Removal Action Approved

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

3/25/1998

Update or Other Action

King Salmon Residential Well Sampling Report November 1997 Sampling Event (dated and received March 1998).

Gretchen Pikul

4/27/1998

Update or Other Action

King Salmon, Naknek and South Naknek Native Villages Site Assessment Report (draft dated March 1998, received April 1998, no final received).

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

10/15/1998

Update or Other Action

Environmental Assessment SuperDARN Radar Installation, King Salmon Airport (draft dated October 1998, no final received).

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

3/30/1999

Meeting or Teleconference Held

Seattle meeting with trustees on fish study previous results and follow-on workplan.

Gretchen Pikul

3/16/2000

Update or Other Action

King Salmon Airport Restoration Advisory Board Orientation Manual (final dated April 1999 and received March 16, 2000).

Gretchen Pikul

8/21/2000

Update or Other Action

General Plan, 611th Air Support Group, Remote Alaska Sites, Volumes 1, 2, and 3 CD version only (dated March 2000 and received August 21). Portion of Bluffs IC established.

Gretchen Pikul

7/17/2001

Update or Other Action

Work Plan - Remediation Systems - 2001 Operation and Monitoring (draft dated July 2, 2001 and received on July 12, 2001; ADEC comment letter dated July 17, 2001; ADEC approval letter dated August 9, 2001; final not received).

Gretchen Pikul

9/26/2001

Update or Other Action

Restoration Advisory Board Pocket Guide and Community Outreach Handbook (ADEC comment letter dated May 30, 2001; final dated September 2001).

Gretchen Pikul

10/23/2001

Leaking Underground Storage Tank Corrective Action Underway

Underground Storage Tank and Pipeline Monitoring Report (draft dated February 1999; ADEC comment letter dated May 14, 1999; review draft dated March 30, 2000; comment resolution meeting on April 11, 2000; final dated April 11, 2001 and received October 23, 2001).

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

11/29/2001

Meeting or Teleconference Held

Meeting with Air Force, ADEC, and EPA at EPA Seattle office - November 26-29, 2001.

Gretchen Pikul

12/13/2001

Update or Other Action

Work Plans for 2001 Comprehensive Environmental Monitoring Projects at: North and South Bluffs (Zone 3); Naknek River Storage Area (Zone 4); Rapids Camp (Zone 6); Biovent and AS/SVE Monitoring at 6 Remediation Sites (4 in Zone 2, 1 at RAPCON - FT01, and 1 at MOGAS - SS19); and Soil Biocell Number 7 Cleanup Verification - (drafts dated and received in July 2001; ADEC comment letters dated July 2001; ADEC approval letters dated July and August 2001; final dated November 28, 2001 and received on December 13, 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

4/15/2002

Update or Other Action

Remediation Systems, 2001 Operation, Monitoring, and Maintenance, Biovent and AS/SVE Systems at Six Remediation Sites - draft dated March 12, 2002 and received March 21, 2002; ADEC comment letter dated April 15, 2002.

Gretchen Pikul

4/15/2002

Update or Other Action

Remediation System Operation, Monitoring, and Maintenance Manual at Six Remediation Sites - draft dated February 22, 2002 and received March 21, 2002; ADEC comment letter dated April 15, 2002.

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

3/11/2003

Update or Other Action

Remediation System Operation, Monitoring, and Maintenance Manual at Six Remediation Sites - draft dated February 22, 2002 and received March 21, 2002; ADEC comment letter dated April 15, 2002; final dated December 23, 2002 and received March 11, 2003.

Gretchen Pikul

3/11/2003

Update or Other Action

Technical Report – Remediation Systems 2001 Operation, Monitoring and Maintenance Biovent and AS/SVE Systems at Six Remediation Sites final dated December 20, 2002 and received on March 11, 2003. Also, Remediation System Operation, Monitoring, and Maintenance Manual at Six Remediation Sites; final dated December 23, 2002 and received on March 11, 2003.

Gretchen Pikul

6/23/2003

Update or Other Action

Monthly Status Reports for Bioventing Systems for March, April, May, and June 2003 (dated June 20 and received on June 23, 2003).

Gretchen Pikul

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

10/1/2003

Update or Other Action

Technical Report Remediation Systems 2002 Operation, Monitoring, and Maintenance Bioventing Systems at Six Remediation Sites (draft dated and received in August 2003; ADEC comment letter dated September 11, 2003; final dated and received October 1, 2003).

Gretchen Pikul

11/13/2003

Update or Other Action

Monthly Status Reports for Bioventing Systems - August through November 2003 (dated November 13, 2003).

Gretchen Pikul

1/16/2004

Update or Other Action

December 2003 Monthly Status Report for Bioventing Systems (electronic version dated and received on January 16, 2004).

Gretchen Pikul

2/4/2004

Meeting or Teleconference Held

Meeting on Air Force compliance projects and actions needed to gain closure, including biovent systems, former marina, and former POL pipeline.

Gretchen Pikul

2/27/2004

Update or Other Action

February 2004 Monthly Status Report for Bioventing Systems (dated February 17, 2004 and received by ADEC via e-mail on February 27).

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

4/1/2004

Update or Other Action

Remediation Systems 2003 Operation, Monitoring and Maintenance at Six Remediation Sites Work Plan Addendum; 1st draft dated and received in July 2003; ADEC comment letter dated August 8, 2003; ADEC approval letter dated August 19, 2003; 2nd draft dated and received on January 9, 2004; ADEC comment letter dated February 13, 2004; Air Force Comment Response received March 31, 2004; and ADEC approval letter dated April 1, 2004.

Gretchen Pikul

4/22/2004

Update or Other Action

Field Sampling Plan Addendum 2003 Environmental Restoration Program at Main Base Area (Groundwater Zone 1 - OT027), North and South Bluffs (Groundwater Zone 3 - OT029), Naknek River Storage Area (Groundwater Zone 4 - OT030), Rapids Camp Landfill (Groundwater Zone 6 - OT032), Red Fox Creek (Groundwater Zone 5 - OT031), and Bioventing Operations at Six Remediation Sites (draft dated and received in July 2003; ADEC comment letter dated July 28, 2003; ; final received April 22, 2004).

Gretchen Pikul

4/22/2004

Update or Other Action

Quality Assurance Project Plan for Sites: Main Base Area (Groundwater Zone 1 – OT027), North and South Bluffs (Groundwater Zone 3 – OT029), Naknek River Storage Area (Groundwater Zone 4 – OT030), Rapids Camp Landfill (Groundwater Zone 6 – OT032), Red Fox Creek (Groundwater Zone 5 – OT031), and Bioventing Operations at Six Remediation Sites (draft dated July 30 and received August 1, 2003; ADEC conditional approval letter dated Ausut 8, 2003;; final received April 22, 2004).

Gretchen Pikul

5/6/2004

Update or Other Action

March 2004 Monthly Status Reports for Bioventing Systems at King Salmon Air Station (dated May 6, 2004).

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

6/18/2004

Update or Other Action

May and June 2004 Monthly Status Reports for Bioventing Systems (dated and received on June 18, 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

8/9/2004

Update or Other Action

2004 Work Plan Addendums: 2004 Remediation Systems Operation, Monitoring, and Maintenance at Seven Remediation Sites; draft dated July 30 and received on August 5, 2004; ADEC comment letter/conditional approval letter dated August 9, 2004; Air Force Comment Response received August 26 and ADEC sent e-mail on August 27 stating that Comment Response is acceptable and referred to ADEC conditional approval letter dated August 9, 2004.

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

8/25/2005

Update or Other Action

Technical Report Remediation Systems 2003 Operation, Monitoring, and Maintenance Bioventing Systems at Six Remediation Sites; final draft dated and received in February 2005; ADEC comment letter dated April 25; Response to Comments June 16; ADEC approval letter July 12; final dated August 5, 2005 received August 25.

Jeff Norberg

9/1/2005

Update or Other Action

Work Plan Addendum - Remediation Systems 2005 Operation, Monitoring, and Maintenance at Two Remediation Sites; draft dated July 21, 2005 received July 28; ADEC comment letter September 1.

Jeff Norberg

10/25/2005

Update or Other Action

Field Sampling Plan Addendum - 2005 Environmental Restoration Program; draft dated August 15, 2005 received August 18; ADEC comment letter September 1; comment resolution meeting held September 7; ADEC approval letter issued October 25.

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 2569.38.019.01 (RAPCON) and 2569.38.019.02 (FT01).

Aggie Blandford

1/29/2008

Exposure Tracking Model Ranking

Initial ranking with ETM completed.

Jonathan Schick

4/15/2008

Site Visit

ADEC staff conducted a site visit to a large number of pertinent sites at King Salmon Air Station over a 3 day visit. Sites were inspected for any visible evidence of contamination and potential sampling locations. ADEC staff was accompanied to all of the sites by the Project managers from the USAF and thier contractors. A RAB meeting was held during the site visit.

Jonathan Schick

4/15/2008

Update or Other Action

ADEC staff participated in a Restoration Advisory Board meeting at the King Salmon Air Station. Community members are encouraged to attend and view a presentation of the most recent sampling program where data is available. Main topics discussed were the TCE plume that is in Groundwater Zone 1 where a treatibility study is being conducted to see the possible influence of adding an enhanced in-situ bioremediation product that is engineered to break down chlorinated solvents. The other main topic discussed was the results from the basewide monitoring event at all of the Groundwater Zones from 2007.

Jonathan Schick

5/6/2008

Update or Other Action

See also file number 2569.38.019.02.

Nicole Hurt

10/13/2008

Exposure Tracking Model Ranking

Initial ranking with ETM completed for source area id: 71484 name: auto-generated pm edit King Salmon Air Station FT01/RAPCON

Jonathan Schick

10/21/2008

Site Visit

ADEC staff took part in a site visit to a number of pertinent sites at King Salmon Air Station over a 2 day visit. Sites, especially the pending Multi Site Inspection sites, were inspected for any visible evidence of contamination and potential sampling locations as the work plans are still being formulated. ADEC staff was accompanied to all of the sites by the Project managers from the USAF and thier contractors. A Restoration Advisory Board meeting was held during the site visit. The topics discussed included the most recent basewide monitoring program, a discussion of the Multi-SIte inspection project, an update on the status of the Groundwater Zone 5 Records of Decision, and a brief discussion concerning the TCE treatibility Study in Groundwater Zone 1. The next RAB meeting has been tentatively scheduled for April 21, 2009.

Jonathan Schick

10/22/2008

Document, Report, or Work plan Review - other

ADEC recieved a copy of the Draft 2007 Comprehensive Environmental Monitoring Report covering Groundwater Zones 1, 2, 3, 4, and RAPCON and Red Fox Creek. It is dated October 2008 and is under review by the State.

Jonathan Schick

3/6/2009

Update or Other Action

ADEC recieved a copy of the 2008 Biovent tatus Report for the RAPCON site. 2 of the three blowers were in operation through the past year with only minor power interruptions. One of the blowers failed and the motor burned out. The site has been remediated to the extent practical because the contamination is limited to the smear zone. Therefore the recommendation is to discontinue the Bioventing system at the year's end, and so not to replace the bunt out blower.

Jonathan Schick

4/21/2009

Update or Other Action

ADEC staff conducted a site visit to pertinent sites at King Salmon Air Station over a 2 day visit. Sites were inspected for any visible evidence of contamination and to become more familiar with the layout and topography of the area. ADEC staff was accompanied to all of the sites by the Project manager from the USAF and thier contractors. A Restoration Advisory Board meeting was held during the site visit. The topics discussed included the most recent basewide monitoring program, a discussion of the Multi-Site inspection project which is entering Phase II this summer, an update on the status of the Groundwater Zone 5 Records of Decision, and a brief discussion concerning the TCE treatibility Study in Groundwater Zone 1. The next RAB meeting has been tentatively scheduled for October, 2009.

Jonathan Schick

8/6/2009

Update or Other Action

ADEC submitted comments to the USAF on the Draft Work Plan for long term monitoring at RAPCON within Groundwater Zone 5.

Jonathan Schick

8/10/2009

Update or Other Action

ADEC staff sent a letter to the USAF approving the implementation of the 2009 RAPCON long term monitoring work plan in the field.

Jonathan Schick

10/26/2009

Site Visit

ADEC staff traveled to King Salmon with the new RPM for the King Salmon Air Station to tour the sites and look at the excavations that were completed during the 2009 field season. Several sites were inspected and overall the sites appeared to be secured with orange snow fencing and visqueen covering the stockpiles to prevent ponding and migration of contaminants. While in King Salmon staff attended and participated in a Restoration Advisory Board Meeting to meet with the public of King Salmon and discuss the results from the latest round of base-wide sampling and to discuss the progress of the excavations that were conducted during the summer.

Jonathan Schick

10/26/2009

Site Visit

Jonathan Schick

8/10/2010

Document, Report, or Work plan Review - other

ADEC recieved a Draft version of the work plan for 2010 Monitoring Program for RAPCON and Red FOx Creek. Surface water and sediment samples will be collected from 4 locations in the wetlands and tributary leading to Red Fox Creek. Groundwater samples will be collected from the established network of 6 monitoring wells.

Jonathan Schick

8/13/2010

Document, Report, or Work plan Review - other

ADEC submitted comments on the Draft Work Plan for monitoring at RAPCON and Red Fox Creek. The main concerns for ADEC were that there was a reference to a Final Record of Decision for the site and that document is still in Draft form. Also there was a reference to the "ten times" rule which does not apply to sites in Groundwater Zone 5 so that part of the sentence was requested to be removed.

Jonathan Schick

8/17/2010

Site Characterization Workplan Approved

ADEC submitted a letter to the USAF approving the implementation of the Final Work plan for 2010 MOnitoring program for RAPCON and Red Fox Creek.

Jonathan Schick

10/20/2010

Update or Other Action

ADEC staff conducted a site visit to pertinent sites at King Salmon Air Station over a 2 day visit. Sites were inspected for any visible evidence of contamination and to observe some of the work that is being conducted to remove POL impacted soils and PCB impacted soils at OT010. ADEC staff was accompanied to all of the sites by the Project manager from the USAF and thier contractors. A Restoration Advisory Board meeting was held during the site visit. The topics discussed included the most recent basewide monitoring program, remedial action cleanup programs, and management of the IDW and soil in the biocells set up to add oxygen to the soil matrix to aid the degradation of the petroleum hydrocarbons. The next RAB meeting is scheduled for April 2011.

Jonathan Schick

1/5/2011

Update or Other Action

Contaminated Sites Staff recieved the Final Version of the Work Plans for Comprehensive Environemtnal Monitoring across all of the groundwater zones at King Salmon Air Station including RAPCON/Red Fox Creek. Surface water and sediment sampling was scheduled to be conducted in several of the areas of concern as well as the analysis of groundwater samples. The Work Plan is dated August 2010.

Jonathan Schick

3/31/2011

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved the Draft version of the 2010 Comprehensive Environmental Monitoring Report for groundwater and surface water sampling at all of the zones at the King Salmon Air Station. The report was dated March 2011.

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

6/6/2011

Update or Other Action

Contaminated Sites Staff submitted comments to the US Air Force Remedial Project Manager regarding the 2011 Work plans for Comprehensive Environmental Monitoring Projects for Groundwater Zones 1-4 and RAPCON and Red Fox Creek. Our concerns were regarding several drums that have been stored within the bioremediation cells and also the need for an Explanation of Significant Differences for the South Bluffs Treatment System.

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

Document, Report, or Work plan Review - other

Contaminated Sites Staff submitted a letter to the AIr Force's Remedial Project Manager for King Salmon approving the Work Plan for Monitoring Well Decommissioning and Repair across the King Salmon Installation. The work is scheduled to be conducted in July of 2011.

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

11/3/2011

Document, Report, or Work plan Review - other

Contamianted Sites Staff submitted comments to the US Air Force Remedial Project Manager on the Draft 2010 Comprehensive Environmental Monitoring Report. The report covered the groundwater and surface water sampling at each of the 5 groundwater zones at King Salmon Air Station. THe main issues with the report was the inconsistencies with the work plan regarding the number and location of wells to sample.

Jonathan Schick

12/4/2011

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved Responses to our comments on the Draft 2010 Comprehensive Environmental Monitoring Report for the 5 groundwater zones at King Salmon. The majority of the responses were acceptable but there were several technical issues that will still need to be resolved before the report can be finalized.

Jonathan Schick

12/9/2011

Document, Report, or Work plan Review - other

Contaminated Sites Staff submitted a letter to the US Air Force Remedial Project Manager regarding the remaining technical issues with the Draft 2010 Comprehensive Environmental Monitoring Report. The issues should be amended before the report can be finalized.

Jonathan Schick

1/19/2012

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved a revised version of the 2010 Comprehensive Environmental Monitoring Report. The revisions incorporated the requested amendments from the draft and the report should be finalized.

Jonathan Schick

3/20/2012

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved the Draft Work Plan for Preliminary Assessments/Site Inspections for Cape Newenham, Cape Lisburne, Indian Mountain, Tatalina LRRS, and King Salmon Air Station.

Jonathan Schick

4/3/2012

Meeting or Teleconference Held

Contaminated Sites Staff met with members of the Remedial Project team from the US Air Force and their consultants and discussed the comments on the Draft Work Plan for Preliminary Assessments/Site Inspections for Cape Newenham, Cape Lisburne, Indian Mountain, Tatalina LRRS, Eareckson Air Station, and King Salmon Air Station. The main concerns were that the work plans were developed without input on the scope of work from the regulator and that the limited scope did not allow for sampling of the necessary constituents to properly characterize sites where fuels were not the only concern.

Jonathan Schick

5/14/2012

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved the Final versions of the Work Plan for Preliminary Assessments/Site Inspections for Cape Newenham, Cape Lisburne, Indian Mountain, Tatalina LRRS, and King Salmon Air Station.

Jonathan Schick

5/24/2012

Document, Report, or Work plan Review - other

Contaminated Sites Staff recieved the Final Version of the 2010 Comprehensive Environmental Monitoring Report dated May 2012 for King Salmon Air Station that covers the groundwater and surface water monitoring at each of the 5 groundwater zones at the Air Station.

Jonathan Schick

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

6/4/2019

Document, Report, or Work plan Review - other

ADEC received the draft Remedial Action-Construction Report, Naknek River Tidal Zone, dated May 2019. This report details the remediation activities conducted at the Naknek River Tidal Zone (SS012), South Barrel Bluff (LF005), and SA039-DR16 sites, and the sampling of drums containing waste from past remedial activities that were stored in the Biocell/Landfarm Staging Area (drum contents were from DA031, SA036, SA039, FT001, and unknown sources). ADEC submitted comments on the draft report in a letter to the Air Force dated July 10, 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

4/1/2021

Document, Report, or Work plan Review - other

ADEC approved the USAF RAPCON Building, 1CY Soil Excavation Report, dated April 1, 2021, in a letter dated April 1, 2021. This summary report describes the sampling, excavation, and removal of one cubic yard of petroleum, oil, and lubricants (POL) contaminated soil encountered during demolition activities at the RAPCON Building 560.

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

6/5/2023

Document, Report, or Work plan Review - other

DEC reviewed and provided comments regarding the Draft 2022 Remedial Action Operations & Land Use Control Inspections, Base Living Area – Zone 1 (OT027), Base Industrial Area & LF022 – Zone 2 (OT028), North and South Bluffs – Zone 3 (OT029), Naknek River Storage Area – Zone 4 (OT030), RAPCON & Red Fox Creek – Zone 5 (OT031), Naknek Rec Camp I, Naknek Rec Camp II, King Salmon Divert, Alaska, dated May 2023. The report describes the field activities conducted during the 2022 field season and summarizes the analytical data. The report recommended continued monitoring and land use control inspections for all the sites.

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

2021 Soil Removal Report

SITE INSPECTION REPORT OF AQUEOUS FILM-FORMING FOAM AREAS AT KING SALMON DIVERT

Site Summary

No associated sites were found.

Missing Location Data

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Alaska Department of Environmental Conservation

Site Report: King Salmon AS GWZ 5 FT001 FTA 1 RAPCON

Site Chronology

IC / Closure Details

Documents

Associated Sites

Problems/Comments

Action Information

Contaminant Information

Control Type

Requirements

2016 Remedial Action/Long Term Management Report

2021 Soil Removal Report

SITE INSPECTION REPORT OF AQUEOUS FILM-FORMING FOAM AREAS AT KING SALMON DIVERT

SITE INSPECTION REPORT OF AQUEOUS FILM-FORMING FOAM AREAS AT KING SALMON DIVERT

Site Summary

Missing Location Data

State of Alaska Department of Environmental Conservation