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Site Report: Eareckson Air Station TU567

Site Name: Eareckson Air Station TU567
Address: Building 605, Amchitka, AK 99546
File Number: 2649.38.001, 2649.38.052
Hazard ID: 26302
Status: Active
Staff: Erica Blake, 9074512182 erica.blake@alaska.gov
Latitude: 52.727872
Longitude: 174.097072
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 TU567 is located within the Eareckson Air Station vehicle maintenance area and the boundaries of SS010, at the site of former Building 605 on Shemya Island, Alaska. The buildings and associated underground storage tanks (USTs) within SS010 and TU567 were used to support the repair and maintenance of motor vehicles. The USTs included a 1,000-gallon waste oil tank (605-1), a diesel tank of unknown volume (605-2), an oil-water separator tank (605-3), a 1,320-gallon diesel fuel tank (614-1), and a 500-gallon waste oil tank (614-2). Specific dates of operation are not known. Building 605 was present in aerial photographs taken in 1961 and 1986. USTs 605-1 and 605-3 were removed in 1993. Records for 605-2 indicated the UST was abandoned in place, but the 2014 ROD for SS010 indicates the status is unclear. USTs 614-1 and 614-2 were removed in 1997. Aerial photography shows unidentified buildings in this area, however the pad for former Building 605 remains. Soil in the vicinity of former Building 605 has been impacted by petroleum contamination. Gasoline range organics (GRO), diesel range organics (DRO), semi-volatile organic compounds (SVOCs) and volatile organic compounds (VOCs) were detected in soil exceeding DEC cleanup levels with DRO being the most prevalent. The horizontal extent of contamination has been identified, however in one soil boring, contamination above cleanup levels was found between 16.5 and 28 feet below ground surface indicating the vertical extent of contamination may not be completely defined. Groundwater was not encountered in any of the soil borings advanced at TU567. GRO and 1,2,4-trimethylbenzene remain in the subsurface above human health ingestion cleanup levels.

Action Information

Action Date Action Description DEC Staff
11/10/2014 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: 79692 name: TU567 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
2/23/2018 Document, Report, or Work plan Review - other The ADEC Contaminated Sites Program provide comments on the Draft Site Characterization Report at 13 Former POL Sites, Phase I, Eareckson Air Station. 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
2/4/2019 Site Characterization Workplan Approved The ADEC Contaminated Sites Program approved the Final Addendum Addendum Uniform Federal Policy – Quality Assurance Project Plan (UFP-QAPP) for Site Characterization at 13 Former POL Sites, Eareckson Air Station, Sheyma Island, Alaska. The QAPP Addendum was approved with the following conditions: 1)ADEC requests weekly field meetings during the effort. 2)the LUST regulations in 18 AAC 78 still need to be achieved. 3) the scope of work for this effort may not be sufficient to fully characterize the sites, and additional characterization may be necessary. 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
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.

No associated sites were found.

Missing Location Data

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