Division of Spill Prevention and Response


Site Report: Eielson AFB (OU-3) (DP44) Battery Shop

Site Name: Eielson AFB (OU-3) (DP44) Battery Shop
Address: Near Building 1140, Eielson AFB, AK 99702
File Number: 107.38.021
Hazard ID: 382
Status: Active
Staff: Monte Garroutte, 9074512131 monte.garroutte@alaska.gov
Latitude: 64.678048
Longitude: -147.098609
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.


Battery shop (bldg 1141), avionics maintenance facility (bldg 1138), aircraft hangar (bldg 1140), maintenance shops and storage for flightline vehicles (bldgs 1132, 1133, 1134, 1135, and 1136) solvents possibly drained to leach fields. The site is assigned a HIGH overall risk on the Air Force Relative Risk Evaluation Worksheet dated 10/23/95. Potential Sources of Contamination • Buildings 1141 and 1138 may have discharged wastewater into a leach field system, although confirmation of the existence or location of the leach field has not been confirmed. Reportedly dye studies have been conducted to determine direction of drainage associated with the leach field. Records search of historic building plans have been conducted in an attempt to locate or document the existence of the leach field. Records search revealed the sanitary sewer discharge location, but no reference to a leach field. (AR00039) • Dry well located on east corner of Building 1140. The dry well was connected to both the building roof and floor drains. A 24-inch tile lined culvert is buried under the entire length of the building and connects the roof drain pipes to the dry well. Reportedly, an active contract was underway to disconnect the floor drains from the dry well and divert the wastewater to an oil/water separator for discharge to the sanitary sewer line in 1995. (AR00342) • Former dry well located inside the northwest end of Building 1134. The dry well was the only drain in Building 1134 which was used through 1992 to wash large vehicles such as snow plows and dump trucks. The dry well was reported sealed shut with cement in 1993. (AR00352) • An aboveground storage tank positioned directly over Well 44M05. (AR00479) • Aircraft maintenance operations. • Outdoor asphalt covered wash pad between Buildings 1133 and 1134. • Past spills and/or surface drainage/run-off from adjacent flightline operations. • Surface application of oil and ground asphalt in the soil.

Action Information

Action Date Action Description DEC Staff
1/16/1992 Site Added to Database This site is included in the state EPA Eielson FFA 100.38.011. No Longer Assigned
9/2/1992 Site Ranked Using the AHRM Initial ranking. No Longer Assigned
12/3/1992 Update or Other Action Received documents from EAFB on OU 3, 4 and 5. These documents are the quality-assured field sampling data. Markey is now reviewing them. Items # 35 and 36, from the CS/DOD bookcase. Rielle Markey
2/23/1993 Update or Other Action (Old R:Base Action Code = RPL2 - Site Information Request Letter). Sent PRP-CS database Notification Letter to RP requesting update and more environmental information concerning contaminated site. Department of the Air Force responded with update of requested site information on 3-17-93. Jeff Peterson
7/15/1993 Update or Other Action (Old R:Base Action Code = DD - Decision Document (CERCLIS)). Letter sent in response to Draft RI document. Contaminants of concern are TCE, DCE, and benzene in groundwater. Contaminants of concern in soil include elevated levels of TPH and PAHs. Rielle Markey
8/12/1993 Meeting or Teleconference Held Meeting in Seattle with EAFB and EPA to discuss the RI at this site. Conclusions were that this site will not go to a FS. Rielle Markey
10/18/1993 Site Ranked Using the AHRM Initial ranking. No Longer Assigned
6/13/1995 Site Ranked Using the AHRM This site was reranked according to information in the May 1995 OU3, 4, and 5 Remedial Investigation Report(RI). Previous score was 44. X-ref to file# 107.38.059 which is Range Operation Facility, formerly Building 1143. Clint Adler
9/30/1995 Update or Other Action Eielson AFB Operable Units 3, 4 and 5 ROD includes 20 source areas that have been combined because of commonalities in contamination. These source areas are DP44, WP45, SS57, SS56, SS61, DP25, ST27, WP33, SS35, SS36, SS37, SS39, SS63, ST58, SS64, LF02, LF03, FT09, LF04 and LF06. Clint Adler
2/16/1996 Update or Other Action (Old R:Base Action Code = RA - Remedial Action). Received Remedial Action Workplan. Clint Adler
4/15/1996 Update or Other Action (Old R:Base Action Code = RD - Remedial Design). Air Force Comments on Draft Remedial Design for OU-3, 4 and 5. Clint Adler
5/10/1996 Update or Other Action (Old R:Base Action Code = RD - Remedial Design). OU-3, 4, and 5, RDRA Workplan, EAFB. Clint Adler
9/24/1996 Record of Decision Final Site-Wide Record of Decision, September 1, 1996; two documents received. Rielle Markey
3/24/1997 Update or Other Action Site updated by Shannon and Wilson, based on the Air Force Relative Risk Evaluation Worksheet dated 10/23/95. S&W
1/21/1998 Update or Other Action Remedial design completed and implemented by ADEC 1997. Issues resolved at weekly teleconference with Base/EPA. Ronan Short
12/26/2001 GIS Position Updated Worked with Heather Goldman obtaining GIS latitude and longitude from 1:63,300 topographic map. Heather Goldman
1/14/2002 Site Number Identifier Changed Changed Workplan from X1 to X9 to reflect presence of a hazardous substance. Ann Farris
9/2/2002 Institutional Control Record Established When the OU-3,4,5 ROD was signed in 1995, it established institutional controls for this site. These ICs include: a prohibition on the installation or use of drinking water wells, a requirement that all monitoring wells are secured with locks, any activity that may result in exposure to contam. g.w. or moving contam. g.w. requires approval of CES/CEV, any activity disturbing a remedial action requires approval of CES/CEV, any activity that may result in exposure to or removal of contam. soil requires approval of CES/CEV, if contam soil or g.w.. are removed from the source, they must be disposed of or treated in accordance with regulation, and a requirement to notify ADEC and EPA of any proposal to change the existing land use or land use controls at the site. Ann Farris
9/2/2002 Long Term Monitoring Established This site is included in the Sitewide Monitoring Program. Site should be monitored in 2004 and 2006 for VOCs. Emily Youcha
1/21/2003 Update or Other Action The 5-year review is scheduled in 2003 to evaluate the long-term monitoring trends. Ann Farris
9/19/2003 Meeting or Teleconference Held Staff attended a meeting with Air Force and EPA personnel to resolve comments on the draft Eielson Five-Year Review. Issues with the document included event-driven groundwater sampling at several contaminated sites, which we denied pending further clarification of the process, and closing numerous sites under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), but keeping them open under the State until 18 AAC 75 diesel range organic cleanup levels are met. Ann Farris
8/26/2004 GIS Position Updated Position acquired using "Base MW Map 2004" CAD drawing from EIAFB georeferenced to QuickBird Satellite imagery, NAD27. Torsten Ernst
6/24/2005 Update or Other Action Staff reviewed the 2004 Sitewide Monitoring Report for this site. Only 1 sample was collected from this site and was collected from a temporary push well. Staff does not concur with using a temporary push well to conduct long-term monitoring. Sample results indicate TCE exists above the MCL at well 44M04Band results seem to indicate the contamination is localized. Emily Youcha
3/1/2006 Update or Other Action Staff had a telephone call with Eielson AFB to discuss their long-term monitoring program optimization. Eielson would like to apply "event-driven monitoring" to many benzene-contaminated sites, where monitoring would occur when the concentration reached the MCL at a predicted time. They are using MAKSENS to do the statistical regressions and come up with a slope indicating benzene degradation rates. This slope would predict when the concentrations would reach the MCL and monitoring would occur at that time only. They would like to apply this slope to other "similar sites" to predict when the concentrations would reach the MCL. Eielson submitted the concept to AFCEE for review, but apparently AFCEE requested more data, which Eielson did not have. At this point, DEC has not reviewed any data on this concept and requested Eielson submit a report showing the data and justification of their assumptions. Emily Youcha
5/25/2006 Update or Other Action Contaminated Sites staff reviewed a dewatering permit with DEC Division of Water staff for Eielson Air Force Base. Dewatering will occur within 1000 feet of this contaminated site. Staff requested the contractor to estimate the radius of influence for each dewatering project under the worst-case pumping scenario. It was determined that the contaminated site would likely not be impacted by dewatering, but to be conservative, the contractor will be required to monitor for chlorinated solvents, total aqueous hydrocarbons, and total aromatic hydrocarbons. Emily Youcha
7/6/2006 Update or Other Action ADEC agreed to decrease sampling of the North Boundary Wells from annual sampling to biennial. Upcoming measurements will be summer 2007, 2009, 2011, etc. Concentrations of VOCs, SVOCs, and metals in the sentinel wells have been monitored annually since 1992 and there has been no detection of contamination. Emily Youcha
10/11/2006 Update or Other Action DEC reviewed the draft 2006 sitewide monitoring program workplan. The schedule indicates ground water monitoring should occur at this site in 2006, however, it was not included in the workplan. Staff provided comments. If it is not monitored in 2006, it should be included in the 2007 workplan for monitoring. Emily Youcha
9/25/2007 Meeting or Teleconference Held Contaminated Sites staff participated in a facilitated three-party meeting with the Air Force and Environmental Protection Agency (EPA) covering the environmental restoration at Eielson Air Force Base. The meeting was held in Seattle at the EPA Region 10 office. CS and the facilitator called for the meeting due to poor communication between the three parties and growing disagreements on matters fundamental to regulatory oversight on Eielson. Initially, each of the three parties was given an opportunity to talk generally about their involvement with the work at Eielson and their concerns. This lead to discussions of the Federal Facility Agreement (FFA) between the parties for base, as it appears that each party interprets specific sections of the FFA differently. Other topics discussed included the applicability of Freedom of Information Act exclusions applied to draft documents submitted to DEC, Eielson's plans for changing the frequency of groundwater monitoring for selected contaminated sites, vapor intrusion as a pathway to reconsider in the upcoming five-year review of records of decision, challenges posed by enforcing institutional controls as part of site remedies, and spill reporting coordination with DEC. Deborah Williams
5/16/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Deborah Williams
7/14/2008 Meeting or Teleconference Held ADEC participated in Eielson's 5 year ROD Review with EPA and Eielson. The sites covered in the ROD Review were the following: ST20, ST48, SS50-52, ST10/SS14, ST13/DP26, DP44, WP45/SS57, ST56, SS61, DP25, ST58, LF03/FT09, WP38 and SS67. Bioventing systems for ST10/SS14 and ST13/DP26 will cease operation during the summer of 2008. ADEC is concerned about LTM issues with SS35 and SS37 because of the potential for spills to be released from buried containerized wastes which are present at both of these sites. The vapor intrusion pathway will be evaluated at many of the sites where there are volatile compounds as a COC at the site and where there are potential receptors. All of these sites will be incorporated into Eielson's Land Use Control plan for the Base and the long term monitoring will be Event Driven Monitoring Program. Deborah Williams
11/24/2008 CERCLA ROD Periodic Review ADEC issued a letter of concurrence on the 2008 Five-Year ROD review for Eielson AFB. In the letter ADEC concurred with the current remedies but recommends further work on the following: the vapor intrusion pathway needs to be evaluated for all potential receptors at WP45/SS57 site along with further evaluation of the selected remedy to ensure the Remedial Action Objectives are going to be met. The buried drums remaining at SS35 may still contain product that may pose a potential risk to ecological and human health risk in the future. The area of buried drums identified outside of SS37 may pose a threat of an imminent release of hazardous substances and warrants further investigation or response action. As stated in the 2008 Five-Year ROD Review, the overall long-term protectiveness determination for the Sitewide OU/Garrison Slough remedy will be further investigated. A Land Use Control Management Plan should be developed and implemented. Deborah Williams
3/18/2014 Report or Workplan Review - Other 2012-Final installation-wide monitoring program report received June, 24 2013. During the 2012 season, a total of 40 PSG samplers were installed and sampled. Through PSG the (TVOCs) total volatile organic compounds found indicated two areas of TVOC mass consisting primarily of BTEX and other fuel-related contaminants. TVOCs exceeded 1,000 ng in the majority of locations south of Building 1140 and in only three locations near Building 1138. Additionally, one area of TCE mass was identified, centered on an area west of well 44M04C. TCE exceeded 1,000ng in three locations (07S, 08S, and 09S).The PSG results confirmed previous investigation results and indicated that 1) a small area of low concentrations of petroleum contamination is present in the vicinity of Building 1138. 2) A larger area of petroleum contamination is present south of Building 1140. However, due to a lack of exceedances of FRGs in groundwater samples collected from this area, soil contamination does not appear to be leaching to groundwater. 3) TCE results indicate the source of TCE is located beneath the parking apron (09S and 08S). Three new monitoring wells were installed, with a total of six wells being sampled (3 new and 3 existing). There was no detected COCs (Contaminant of concern) or COPC (Contaminant of potential concern) with levels that exceeded current MCL (Maximum contaminant level) or ADEC groundwater levels. No known groundwater contaminant plume has been identified at this site. In general, based on the comparison between the 2012 and historical concentrations and plume extents, the groundwater impacts contaminants of concern appear to be stable or decreasing. However, based on the limited data available, additional monitoring is needed to determine contaminant trends for TCE in the vicinity of former well 44M04C. Anna Iverson
5/1/2014 Report or Workplan Review - Other 2013-Draft installation-wide monitoring program (IWMP) report received March, 26 2014. During the 2013 season, six monitoring wells was sampled in both spring and fall 2013. There was no detected COCs (Contaminant of concern) or COPC (Contaminant of potential concern) with levels that exceeded current MCL (Maximum contaminant level) or ADEC groundwater levels. No known groundwater contaminant plume has been identified at this site. However, data gaps were identified in both the 2012 IWMP and 2013 FYR, and will be addressed in the 2014 IWMP. Anna Iverson
6/26/2014 Site Visit CS staff participated in an all-day site visit with EPA and USAF personnel. Sites visit included WP45/SS57, ST58, SS67, SS62, DP44, LF02, LF06 and LF07. Site DP44, has ICs in place, one monitoring well (44MO3) appeared to be tampered with and the cap had been removed. Anna Iverson
6/10/2015 Site Characterization Workplan Approved Approval issued for the "Final Workplan for Additional Well Installations, Eielson Air Force Base, Alaska" dated 26 May 2015. The workplan describes the installation of 20 new monitoring wells at ten source areas (i.e. ST10/SS14, ST13/DP26, ST18, ST19, DP44, SS61, SS37, ST58, LF04, and SS534) across Eielson, as well as the redevelopment of drinking water well NWS56WH at Source Area ST56 (Engineer Hill). Melinda Brunner
9/22/2015 CERCLA RI Plan Approved Joint approval issued by EPA and DEC for the final "Remedial Investigation / Feasibility Study Management Plan For Operable Units 3, 4, and 5 Source Areas, Eielson Performance-Based Remediation, Eielson Air Force Base, Alaska" dated September 2015 (OU 3, 4 & 5 RI/FS MP). The OU 3, 4 & 5 RI/FS MP describes planned remedial investigations at 23 contaminated sites at Eielson Air Force Base, including DP44. Melinda Brunner
7/22/2016 Institutional Control Compliance Review DEC and EPA Approved the Final 2016 Installation-Wide Monitoring Program Quality Assurance Project Plan Addendum No. 5. The IWMP QAPP Add. 5 updates the 2012 IWMP QAPP for the 2016 field season. Changes and additions to the existing network of monitoring wells were described. Monte Garroutte

Contaminant Information

Name Level Description Media Comments
Trichloroethene > Table C Groundwater
Benzene > Table C Groundwater
cis-1,2-Dichloroethylene > Table C Groundwater
TPH Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil

Control Type

Type Details
Interagency MOU Operable Unit 3, 4, 5 Record of Decision


Description Details
Groundwater Monitoring Site is included in Sitewide Monitoring Program. There is a requirement that all monitoring wells are secured with locks. Annual Report, monitoring frequency varies
Groundwater Use Restrictions A prohibition on the installation or use of drinking water wells. Any activity that may result in exposure to contaminated ground water or moving contaminated ground water requires approval of 354 CES/CEV, If contaminated ground water is removed from the source, it must be disposed of or treated in accordance with regulations. Annual IC Report
Restricted to Industrial / Commercial Land Use Requirement to notify ADEC and EPA of any proposal to change the existing land use or land use controls at the site. Place written notification of the remedial actions at the site in the base land use master plan. Written notification to DEC.
New Construction Restrictions Any activity that may result in exposure to or removal of contam. soil requires approval of CES/CEV IC report (Annual)
Excavation / Soil Movement Restrictions If contaminated soil is removed from the source, it must be disposed of or treated in accordance with regulation Annual IC Report, 5 year reviews

There are no documents for this site report.