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Site Report: Eielson AFB (SS078) HazMat CITS

Site Name: Eielson AFB (SS078) HazMat CITS
Address: South of HazMat Area, Eielson AFB, AK 99702
File Number: 107.38.098
Hazard ID: 3690
Status: Active
Staff: Axl LeVan, 9074512156 axl.levan@alaska.gov
Latitude: 64.664000
Longitude: -147.101806
Horizontal Datum:

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

This is one of five sites discovered during the CITS construction project. There is a municipal drinking water well less than 1 mile downgradient. Garrison Slough is less than 0.25 miles downgradient. The HazMat Area is considered to be the southern extension of IRP site DP26 (see DEC file 107.38.024). GRO and Benzene were detected in soils south of the HazMat Area. Approximately 200 cubic yards of soil were removed and thermally treated in May 2001. Groundwater sampling in 2004 and 2004 identified GRO, benzene and lead above cleanup levels. DEC approved the site characterization report in 2005 but stated that additional characterization may be needed to better define the plume(s). It is unclear if there are one or two plumes. In 2006 DEC noted that inclusion of this site within IRP site DP26 is acceptable upon demonstration that the HazMat Area is within the DP26 boundaries. No demonstration has been made.

Action Information

Action Date Action Description DEC Staff
9/7/2001 Site Added to Database Petroleum contamination. Bruce Wanstall
9/7/2001 Site Ranked Using the AHRM Preliminary ranking. Municipal DW well is less than 1 mile away and located hydrologicaly down-gradient from the site. Garrison Slough is less than 1/4 mile away and also down-gradient from the site. Bruce Wanstall
2/10/2004 Meeting or Teleconference Held meeting to discusswork for summer 2004. Further investigation in areas where contamination was discovered during installation of the fiber optic cable (CITS sites) additional soil borings and monitoring wells will be installed Sharon Richmond
5/26/2004 Site Characterization Workplan Approved soil and groundwater in areas discovered to be contaminated during CITS installation will be sampled. Additional monitoring wells will also be installed Sharon Richmond
3/1/2005 Meeting or Teleconference Held ADEC met with Eielson AFB and contractor to review the Draft Site Characterization report for the CITS sites. QA/QC issues were discussed and there is a need for further data validation before the report can be approved. Iin the Hazmat area, DRO and benzene levels remain above cleanup levels. DRO, GRO, BTEX, and total lead have impacted the ground water at the HazMat area. The lead contamination in the ground water is thought to be assocated with a larger benzene plume north of the HazMat area. Emily Youcha
6/21/2005 Site Characterization Report Approved Staff approved the site characterization report for this area. Data from 2002 and 2004 indicate DRO- and benzene-contaminated soils exist above ADEC Method Two cleanup levels. Ground-water sampling results indicate DRO, GRO, BTEX, and total lead concentrations exceed ADEC Groundwater cleanup levels. The northern portion of this ground-water contamination is thought to be a result of re-fueling and de-fueling activities along the flightline, and this contamination is consistent with the contamination at existing IRP site ST13/DP26. However, the southern extent of the northern plume is not clearly defined, but it is possible the southern and northern plumes are actually part of one large plume based on presence of similar constituents of concern and the proximity to the fueling location and flightline. The report stated that additional characterization may be needed to better define the plumes. The Air Force may expand their bioventing system to include this site. 4. ADEC does not consider this effort a complete characterization as required by 18 AAC 75.335 because the cleanup levels and techniques were not proposed in the report. Additionally, the report did not evaluate the potential threat to human health, safety, and the environment from the contamination. This step is often evaluated in a conceptual site model (CSM) and in calculations of risk. Since this information was not included in the characterization report, ADEC would expect this type of information in a future proposed cleanup plan for this site. Emily Youcha
4/17/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Deborah Williams
12/19/2011 Update or Other Action This entry contains only site-specific information. An informational site has been added to the database for actions that pertain to Eielson Air Force Base in its entirety. Please see ADEC file number 107.38.006/Hazard ID 25578/Eielson AFB Basewide Information. Kathleen Beutel
6/12/2013 Update or Other Action Site was included in Phase 1 SER for Multiple Sites report. Air Force recommendation is for a CERCLA RI/FS. Eric Breitenberger
9/1/2015 Update or Other Action Site is included in the Non-OU RI/FS Management Plan under the Eielson FFA. All review comments have been addressed and a Final version and subsequent approval are expected shortly. Eric Breitenberger
9/22/2015 CERCLA RI Plan Approved Joint approval issued by EPA and DEC for the final "Remedial Investigation / Feasibility Study Management Plan For Non-Operable Unit Source Areas, Eielson Performance-Based Remediation, Eielson Air Force Base, Alaska" dated September 2015 (Non-OU RI/FS MP). The Non-OU RI/FS MP describes planned remedial investigations at 17 contaminated sites at Eielson Air Force Base, including SS078. Melinda Brunner
9/22/2015 CERCLA RI Plan Approved DEC and EPA jointly approved the "2015 Annual Field Sampling Plan, Eielson Performance-Based Remediation, Eielson Air Force Base, Alaska" dated September 2015 (FSP). The FSP describes remedial investigations planned for 2015 at 21 contaminated sites at Eielson Air Force Base, including SS078. The FSP is meant to be used in conjunction with the appropriate remedial investigation/feasibility study (RI/FS) management plans (i.e. Non-OU) and the Programmatic Quality Assurance Project Plan. Melinda Brunner
10/28/2016 Document, Report, or Work plan Review - other DEC Reviewed the Non-OU RI/RA report. This report included the characterization of multiple sites. Monte Garroutte
4/25/2017 Update or Other Action DEC reviewed and provided comments on the Draft Programmatic Quality Assurance Project Plan, Addendum No. 2, Eielson Air Force Base, Alaska (March, 2017). John O'Brien
10/28/2017 Document, Report, or Work plan Review - other DEC reviewed and provided comments on the Draft 2015 Remedial Investigation/Risk Assessment Report for Non-Operable Unit Source Areas, Eielson AFB, Alaska [August 2016]. John O'Brien
3/9/2018 Document, Report, or Work plan Review - other DEC issued comments on the Draft Site Characterization Report I Source Areas ST011, SD021, SD022, SD024, DP025, ST027, SS030, ST058, SO065, SO069, SO070, SO071, SO073, SO075, SS078, SS084, SO504, TU506, MY512, and MY518 dated February 2018. Bri Clark
6/25/2018 Document, Report, or Work plan Review - other DEC issued comments on the Draft Site Characterization Report I Source Areas ST011, SD021, SD022, SD023, SD024, DP025, ST027, SS030, ST058, SO065, SO069, SO070, SO071, SO073, SO075, SS078, SS084, SO504, TU506, MY512, and MY518, Eielson Air Force Base, Alaska, dated February 2018. Bri Clark
8/21/2019 Site Characterization Report Approved DEC Approval for the Final Site Characterization Report 1, Source areas ST011, SD021, SD022, SD023, SD024, DP025, ST027, SS030, ST058, SO065, SO069, SO070, SO071, SO073, SO075, SS078, SS084, SO504, TU506, MY512, and MY518, Eielson Performance Based Remediation, Eielson AFB, Alaska, May 2019 Sara Marshall
5/12/2020 Update or Other Action A draft Decision Document (1 Part B) was submitted for Eielson Source Areas: MY512, MY518, SO504, SS078, and ST011. All of the sites have underlying PFAS contamination and are within the PFOS/PFOA groundwater plume. PFOS/PFOA contamination associated with groundwater in these areas will be addressed under the CERCLA regulatory program in accordance with the Eielson federal facilities agreement. Dennis Shepard
3/4/2021 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74665 Hazmat area. Axl LeVan
2/9/2022 Update or Other Action DEC approved and signed the Decision Document for Eielson Performance Based Remediation Source Areas SO075, SS078, SO504, MY512, and MY518, Eielson Air Force Base, Alaska (May 2021). The Decision Document describes the remedial actions at Eielson Source Areas SO075, SS078, SO504, MY512, and MY518, all of which are associated with potential contamination resulting from petroleum, storage, distribution, and/or use. The U.S. Air Force (USAF) is managing remediation of petroleum, oil, and lubricants (POL) or petroleum-related contamination at these source areas in accordance with the State-Eielson Agreement (USAF 2014d), the two-party agreement. Any Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) constituents remaining will be addressed by transferring source areas back to the Eielson Air Force Base, Federal Facility Agreement Under CERCLA Section 120 (USAF 2013a), the three-party agreement. Dennis Shepard
5/9/2024 Update or Other Action DEC approved Land Use Control (LUC) boundary updates that were discussed at the 23 October 2023 meeting. The updated site boundaries were based on site evaluations performed since initial interim LUCs were place on the sites. Site SO075 boundaries are being expanded northeast to capture soil contamination. SS078 is being expanded to include a proposed monitoring well. MY512 was recommended for collapse and a shift north to include two monitoring well locations. MY518 and SO504 were recommended for site closure, but will retain current LUC boundaries until a final DEC decision is made. Axl LeVan

Contaminant Information

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No associated sites were found.

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