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Site Report: King Salmon AS GWZ 6 SS004 Generator Pad

Site Name: King Salmon AS GWZ 6 SS004 Generator Pad
Address: aka SS04 Veh. Maintenance, Groundwater Zone 6 (OT32), King Salmon, AK 99613
File Number: 2569.38.021.04
Hazard ID: 690
Status: Active
Staff: Ginna Quesada, 9074515960 ginna.quesada@alaska.gov
Latitude: 58.640496
Longitude: -156.566870
Horizontal Datum:NAD83

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.

Problems/Comments

Groundwater Zone 7 (OT33). Former Vehicle Maintenance Facility (SS04). A former vehicle maintenance facility at Lake Camp was located across the gravel road directly south of the former lodge and disposal pit (DP03) and approximately 60 feet east of the former generator pad (SS05). The use and practices at this site are not well documented, but POL contamination was encountered in the soil and groundwater. Numerous environmental investigations have been performed to evaluate contamination at Lake Camp. RI field activities were performed in 1994 (report date 1995) to evaluate the nature and extent of contamination in the soils, groundwater, surface water, and sediments. A FS was completed in 1999 to identify possible remedial alternatives. A monitored natural attenuation study was completed in 1998 (report date of 2000), and a limited field investigation was performed in 2000 (report date of 2001) to further delineate the extent of soil and groundwater contamination at the former vehicle maintenance facility (SS004) and former generator pad (SS005). The draft Record of Decision is at PACAF and Air Staff for review and approval. Remedial Action objectives for SS04: soil excavation and biocell treatment, and monitored natural attenuation of groundwater. Remedial Action Objectives for SS005 and SS004: a) Reduce concentrations of contaminants of concern in soil and groundwater to meet cleanup levels. b) Prevent or minimize direct exposure to contaminants of concern (DRO) in groundwater during the cleanup process. In order to achieve the RAOs, USAF will implement the remedy outlined below. There is no surface water present at these sites. 1) Soil: Soil within the former generator pad (SS005) and former vehicle maintenance facility (SS004) that is contaminated with DRO above the cleanup level will be removed. The removed soil will be transported to the KSAS facility biocells for treatment to cleanup levels appropriate for the final disposition area within KSAS. Removal areas will be backfilled with clean soil and the disturbed areas revegetated. An estimated 800 to 1,800 cubic yards of soil require removal and treatment. Excavation confirmation sampling will be performed to verify that all of the soil above cleanup levels is removed. Confirmation sampling will include DRO and polyaromatic hydrocarbons (PAHs). The following analytes will be included in the PAH analysis: acenaphthene, anthracene, benzo(a)pyrene, benzo(a)anthracene, benzo(b)fluoranthene, benzo(k)fluoranthene, chrysene, dibenzo(a,h)anthracene, fluorene, indeno(1,2,3-cd)pyrene, naphthalene, and pyrene. DRO and all PAHs must meet tabulated cleanup levels provided in 18 AAC 75, Tables B1 and B2. 2) Groundwater: MNA will address groundwater contamination. The protectiveness of MNA will be assured by sampling on an annual basis approximately eight groundwater monitoring wells for DRO and MNA parameters. During the first year, samples will also be collected for dissolved lead analysis to determine whether lead should be considered a contaminant of concern. Monitoring will be performed consistent with a comprehensive monitoring plan to be developed by USAF with ADEC input. The monitoring program will be consistent with the technical requirements set forth in state of Alaska regulations and will be designed to address the RAOs outlined in this ROD. The number and frequency of monitoring wells sampled may be modified when sufficient data have been co A small generator was stationed at this area that supplied power to Recreation Camp Number 2. The 611 CES razed this small structure in the late 1980s. 11.56 acre site. 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
6/15/1985 Preliminary Assessment Approved Installation Restoration Program Preliminary Assessment - Naknek Recreation Camps (dated April 1989). Preliminary Assessment performed to identify past spill or disposal sites that posed potential and actual hazards, or both, to public health or the environment. Former Staff
6/15/1987 Update or Other Action Defense Environmental Restoration Account dated 1987. Field investigation performed to address debris material inventory, POL and hazardous material inventory, and disposal sites. Former Staff
6/13/1988 Update or Other Action Hazardous Materials Technical Center Assessment: recommends that construction rubble, drums and barrels be removed from site#1 landfill. Install monitoring well system and soil sampling should be done with contaminated soil removed. Site#2 removal of all drums is recommended along with previous suggestions for monitoring/sampling. Site#3 soil sampling of stained area is suggested as well as disposal/removal. Former Staff
6/15/1990 Update or Other Action Reconnaissance electromagnetic survey was conducted to search for buried drums, tanks, or other debris potentially buried on site, and to assist in choosing optimal drilling sites for soil borings and soil gas sample locations. The results of the soil gas survey were used to define areas of greatest potential environmental impact. Former Staff
6/15/1991 Update or Other Action Partial site assessment performed to determine the presence or absence of contaminants reportedly released to subsurface at locations identified in the preliminary assessment. Louis Howard
6/15/1995 Site Characterization Report Approved Naknek Recreation Camps Remedial Investigation Report (final dated June 1995). Objective was to further define the extent of contamination in the subsurface. Two contamination sources were identified at Rapids Camp (former generator pad, and beach/dock area) and 4 contamination sources were identified at Lake Camp (former lodge area, former generator pad, wetland, and landfill). Louis Howard
1/10/1996 Update or Other Action Human Health and Ecological Risk Assessment Workplan for Naknek Recreation Camps (draft dated June 1995, received January 1996). 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
11/25/1996 Risk Assessment Report Approved Baseline Human Health and Preliminary Ecological Risk Assessment, Naknek Recreation Camps (final dated November 1996). Results indicated some remediation is required at both sites due to contaminant concentrations exceeding risk-based standards and the potential harm to wildlife from exposure to DRO, DDT, and heavy metals. 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) David 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
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
3/25/1998 Update or Other Action Rapids Camp and Lake Camp Modeling to Support Remedial Alternatives (draft dated March 5, 1998, no final report received) 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
5/4/1999 Update or Other Action Feasibility Study, Installation Restoration Program, Naknek Recreation Camps (draft dated October 1995, final revised dated March 1997, draft dated March 1998, final dated April 1999, final insert pages received 1-18-00). Gretchen Pikul
12/2/1999 Update or Other Action Air Force memorandum regarding the Draft Proposed Plan Lake Camp (undated); ADEC received on December 1, 1999 and sent a response memorandum on December 2, 1999. Gretchen Pikul
2/3/2000 Proposed Plan Lake Camp (Groundwater Zone 7) Proposed Plan approved; comment period 2-4-00 to 3-3-00; public meeting 2-16-00. 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
8/31/2000 Update or Other Action National Park Service letter regarding the Lake Camp Boat Launching and Day Use Facilities Environmental Assessment (dated August 29), with the attachment of a Finding of No Significant Impact (undated). And Final Wetlands Statement of Findings, Lake Camp Boat Launch and Day Use Facilities, Katmai National Park and Preserve (dated August 2000). Gretchen Pikul
9/15/2000 Update or Other Action Naknek Recreation Camp Lake Camp (SS05) Limited Field Investigation Workplan (draft dated June 7, 2000; ADEC comment letter dated June 14, 2000; final dated September 15, 2000). Gretchen Pikul
9/26/2000 Update or Other Action Lake Camp 95% Design Submittal Drawings from the National Park Service (letter dated September 25). Gretchen Pikul
10/3/2000 Update or Other Action Geotechnical Report, Lake Camp Facilities Design, Katmai National Park and Preserve, Alaska (dated January 2000 and received on October 3 from NPS by ADEC request). Gretchen Pikul
2/6/2001 Update or Other Action Intrinsic Remediation Study, Groundwater Monitoring Zones 6 and 7 (draft dated April 1999, received May 1999, final dated November 2000, received February 6, 2001). Gretchen Pikul
4/19/2001 Site Added to Database Petroleum hydrocarbons and metal contamination. Former Staff
4/25/2001 Meeting or Teleconference Held Meeting with Air Force, ADEC, and EPA at EPA Seattle office - April 23-25, 2001. 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
10/12/2001 Update or Other Action Limited Field Investigation at Naknek II - Lake Camp (SS05) report (draft dated January 5, 2001; ADEC comment letter dated February 23, 2001; comment resolution meeting on September 26, 2001; final report received on October 5, 2001 - numerous comments not incorporated into final version as stated in 'response to comments'). Gretchen Pikul
11/19/2001 Update or Other Action Record of Decision for Naknek Recreation Camp (Lake Camp), Site: Groundwater Zone OT033 (Zone 7) (draft dated October 2001; ADEC commented on November 19, 2001; no final received - Air Force contractor let go and funding to complete the projects and reports is in progress). 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
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
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
5/3/2004 Update or Other Action Record of Decision for Naknek Recreation Camp II (Lake Camp); preliminary draft received on March 4, 2003; comment resolution meeting on March 12 and 13, 2003; received draft ROD on April 18, 2003; ADEC comment letter dated May 27, 2003; ADEC sent e-mail on Air Force Comment Response on August 27, 2003; final draft received December 2, 2003 and ADEC comments dated December 4, 2003; 4th draft ROD received on April 12, 2004 via e-mail; comment resolution meeting on April 28 and May 3, 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
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
9/27/2004 Update or Other Action Record of Decision for Naknek Recreation Camp II (Lake Camp); preliminary draft received on March 4, 2003; comment resolution meeting on March 12 and 13, 2003; received draft ROD on April 18, 2003; ADEC comment letter dated May 27, 2003; ADEC sent e-mail on Air Force Comment Response on August 27, 2003; final draft received December 2, 2003 and ADEC comments dated December 4, 2003; 4th draft ROD received on April 12, 2004 via e-mail; comment resolution meeting on April 28 and May 3, 2004; 611th submitted draft final Lake Camp ROD to PACAF on June 1, 2004; PACAF submitted Lake Camp ROD to Air Staff on July 19, 2004; Air Staff/PACAF comments were received on August 25, 2004; comment resolution teleconference held on September 2; comment resolution meeting/teleconference held on September 27, finalizing ROD will be delayed until negotiations with the landowner are complete. 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 2569.38.021.04. Aggie Blandford
2/22/2008 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
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
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
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
10/20/2010 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
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
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 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
12/15/2016 Update or Other Action The AF is currently preparing a ROD for Zone 7. The draft document is presently in USAF legal review and should be provided to ADEC in the near future. 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
6/3/2021 Document, Report, or Work plan Review - other Final Naknek II Expanded Remedial Investigation Work Plan, June 2021. This Naknek II Expanded Remedial Investigation (RI) Work Plan (Work Plan) describes the conceptual site models (CSMs), data quality objectives (DQOs), and proposed sampling methodology and locations for conducting an Expanded RI at five Installation Restoration Program (IRP) sites located within Naknek II at King Salmon Divert, Alaska. The objectives of this Expanded RI for each of the five IRP sites within Naknek II are as follows: • Delineate the nature and extent of contaminant impacts on the environment. • Characterize the nature and extent of Solid Waste. • Evaluate historical and newly collected data against current regulatory standards. • Assess human health and ecological risks. The sites included in this investigation are: Naknek II LF001 Drum Landfill Naknek II LF002 Construction Debris Landfill Naknek II DP003 Former Lodge and Disposal Pit Naknek II SS004 Former Vehicle Maintenance Facility Naknek II SS005 Former Generator Pad Darren Mulkey
7/7/2021 Update or Other Action GPS coordinates (lat/long) updated. Previous coordinates (lat/long) were 58.727602 -157.015936. Updated coordinates obtained with satellite imagery and figures in 20170215 Draft 2016 3rd FYR.pdf 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

Contaminant Information

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