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Site Report: Eareckson Air Station CS566

Site Name: Eareckson Air Station CS566
Address: Building 3048; ~740 Feet SW of Eareckson Air Station Dock, Amchitka, AK 99546
File Number: 2649.38.001, 2649.38.051
Hazard ID: 26300
Status: Active
Staff: Erica Blake, 9074512182 erica.blake@alaska.gov
Latitude: 52.726688
Longitude: 174.064054
Horizontal Datum:WGS84

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

Site CS566 (also referred to as Site CC004) is located within the Eareckson Air Station dock area, approximately 740 feet southwest of the dock. CS566 is the site of an inactive Jet Propellant and motor gasoline (mogas) pumphouse (Building 3048), AST 8, fill stand, and associated pipelines. This site also includes a waste disposal area located to the southwest of AST 8. Site CS566 is contained within the extents of Installation Restoration Program Site ST50 (Fuel Management Area). It is not known whether the abandoned pipelines were properly decommissioned. AST 8 was observed to be severely corroded and located in an unlined containment dike. The pipes within Building 3048 had been observed to be severely corroded. A pipeline leading from AST 8 to Building 3048 had reportedly leaked. Stained surface soil was observed around the valve pit. DRO, GRO, benzene, m- &p- xylenes, o-xylene, methylene chloride, arsenic, cobalt, iron, and manganese have been detected in soil samples at concentrations above cleanup levels. DRO, GRO, benzene, ethylbenzene, xylenes, pentachlorophenol, antimony, and selenium have been detected in groundwater samples at concentrations above cleanup levels.

Action Information

Action Date Action Description DEC Staff
10/23/2008 Site Characterization Report Approved The ADEC Contaminated Sites Program approved the Comprehensive Site Evaluation (CSE) Phase II Report, Eareckson Air Station. Petroleum and metals constituents were detected in soil and groundwater above applicable cleanup levels at this site (also called CC004). Additional investigation was recommended. Jonathan Schick
10/10/2013 Site Characterization Report Approved The ADEC Contaminated Sites Program approved the Final Compliance Site Evaluation Report for Eareckson Air Station. Petroleum and metals constituents were detected in soil and groundwater above applicable cleanup levels. Additional investigation was recommended to delineate the nature and extent of contamination, as well as to evaluate the inactive and abandoned pipelines and fuel systems at CS566. Jessica Morris
11/7/2014 Site Added to Database A new site has been added to the database Mitzi Read
11/21/2014 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79690 name: CS566 Jessica Morris
5/12/2015 Meeting or Teleconference Held The ADEC Contaminated Sites Program participated in a project scoping meeting with the US Air Force regarding various sites at Eareckson Air Station. A remedial investigation/feasibility study for multiple compliance and LUST sites is scheduled to occur in 2015/2016. Additional groundwater wells will also be installed for long term monitoring at several IRP sites. Compliance site CS566 will be investigated as part of this effort. Jessica Morris
10/22/2015 Update or Other Action The ADEC Contaminated Sites Program reviewed and commented on a draft scope of work for investigation, remedial process optimization, and long term management studies at several sites for Eareckson Air Station. Jessica Morris
8/31/2016 Site Characterization Workplan Approved The ADEC Contaminated Sites Program conditionally approved the 2016 Uniform Federal Policy - Quality Assurance Project Plan (UFP-QAPP) for Site Characterization at 14 Former POL Sites, Eareckson Air Station, Shemya Island, Alaska. The conditions for the UFP-QAPP are as follows: 1) We do not object to the long term monitoring work being completed as outlined in the UFP-QAPP; however ADEC cannot concur that efforts will be counted towards meeting the end point criteria outlined in the decision documents until an adequate monitoring program has been established. 2)The QAPP states that field screening results and field observations will be used to determine additional groundwater monitoring well locations. These locations should to be coordinated with ADEC. 3) The leaking underground storage tank (LUST) sites at Eareckson Air Station will need to be characterized and closed in accordance with LUST regulations that are included in 18 AAC 78. 4) The scope of work for this investigation may not be sufficient to fully characterize the sites listed in the work plan, and additional investigation may be necessary. Jessica Morris
11/14/2016 Site Visit ADEC staff travelled to Eareckson Air Station for 4 days to conduct site visits and become familiar with the ecology and topography of the island. Site visits were conducted to all pertinent sites and meetings were held to with ADEC and USAF to discuss a path forward for the sites. Jessica Morris
11/27/2017 Site Visit ADEC staff travelled to Eareckson Air Station for 3 days to conduct site visits and institutional control inspections. Site visits were conducted to all pertinent sites and meetings were held to with ADEC and USAF to discuss a path forward for the sites. Jessica Morris
2/23/2018 Update or Other Action The ADEC Contaminated Sites Program submitted comments on the Draft Site Characterization Report at 13 Former POL Sites, Phase I, Eareckson Air Station, Alaska. Jessica Morris
5/2/2018 Document, Report, or Work plan Review - other The ADEC Contaminated Sites Program submitted comments on the Draft Remedial Process Optimization Report for Eareckson Air Station. The purpose of the report was to present an evaluation of the effectiveness of the current selected site remedies and make recommendations for optimization of an island-wide monitoring and management program for contaminated sites at Eareckson. ADEC had numerous comments on the document, and requested a project team meeting to further discuss a more effective and efficient program at Eareckson. Jessica Morris
4/27/2022 Update or Other Action On 4/27/2022 ADEC approved the Eareckson Air Station, Alaska, REMEDIAL PROCESS OPTIMIZATION REPORT dated April 2022. This Remedial Process Optimization (RPO) Report presents an evaluation of the effectiveness of current selected site remedies and makes recommendations for optimization of the IWM Program, as appropriate to establish a more integrated groundwater monitoring program at Eareckson AS. RPO is a systematic approach for evaluating and improving the effectiveness of site remediation without increasing site risk. This RPO Report presents a site-by-site evaluation of effectiveness of the sites selected remedy and provides recommendations to: • Streamline groundwater monitoring. • Develop a holistic approach to site management. • Maintain the remedial action objectives (RAOs) set forth in established Record of Decisions (RODs) and Decision Documents (DDs). Daniela Fawcett
10/19/2022 Update or Other Action A copy of the 2022 Remedial Process Optimization Report for this site can be found at: Eareckson Air Station Site LF15 (File No. 2649.38.001, Hazard ID 2900), under the Attachments tab. Daniela Fawcett
6/27/2023 Document, Report, or Work plan Review - other DEC provided comments for the Draft Final 2021 Long Term Management, Land Use and Institutional Controls Report Eareckson Air Station, Shemya, Alaska Sites CS566, DA002/DA002A, DA003, FT001, FT002, FT003, LF015, LF018, LF024, LF026, ML001, MU001, OD001, OT048, OT617, PL560, PL575, SS005, SS007, SS010, SS012, SS023, SS025, ST009, ST035, ST039, ST044, ST046, ST050, ST051, TA555, TA556, TA616, TU553, TU554, TU558, TU559, TU567, TU568, XU912, ZZ001, dated June 2023.The report describes the institutional control inspections and sampling efforts conducted during November 15 through November 30th, 2021. Forty-two different sites were investigated at the Eareckson Air Station located on Shemya Island, Alaska. Groundwater was sampled at nine sites, surface water was sampled at five sites, and sediment sampling was conducted at two sites. Contaminants above cleanup levels remain present at most sites with stable or non-discernable trends. Most land use controls appear to be in good condition and Monitoring and continued inspections were recommended for all sites. Ginna Quesada
7/3/2023 Document, Report, or Work plan Review - other DEC submitted responses to comments for the Draft Final 2021 Long Term Management, Land Use and Institutional Controls Report Eareckson Air Station, Shemya, Alaska Sites CS566, DA002/DA002A, DA003, FT001, FT002, FT003, LF015, LF018, LF024, LF026, ML001, MU001, OD001, OT048, OT617, PL560, PL575, SS005, SS007, SS010, SS012, SS023, SS025, ST009, ST035, ST039, ST044, ST046, ST050, ST051, TA555, TA556, TA616, TU553, TU554, TU558, TU559, TU567, TU568, XU912, ZZ001, dated June 2023. Ginna Quesada
8/3/2023 Long Term Monitoring Workplan or Report Review DEC approved the "Final 2021 Long Term Management, Land Use and Institutional Controls Report Eareckson Air Station, Shemya, Alaska Sites CS566, DA002/DA002A, DA003, FT001, FT002, FT003, LF015, LF018, LF024, LF026, ML001, MU001, OD001, OT048, OT617, PL560, PL575, SS005, SS007, SS010, SS012, SS023, SS025, ST009, ST035, ST039, ST044, ST046, ST050, ST051, TA555, TA556, TA616, TU553, TU554, TU558, TU559, TU567, TU568, XU912, ZZ001, dated July 2023." The report recommends continuing with land-use control site inspections and monitoring the groundwater until all remedial objectives are met. Erica Blake
10/15/2024 Document, Report, or Work plan Review - other DEC provided responses to comments for the Decision Document for 23 Petroleum Contaminated Sites, Eareckson Air Station, Shemya Island, Alaska, Draft (dated July 2024) to the U.S. Air Force. Most of the responses to comments were acceptable, with a couple requiring additional text changes to the document. Two sites (CS566 and OT617) have contamination present above human health levels and a Notice of Activity Use and Limitations will be required for those sites. Erica Blake

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details

There are no documents for this site report.

Hazard ID Site Name File Number
2903 Eareckson Air Station ST50 2649.38.001, 2649.38.042

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
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