Site Report: Eielson AFB (CS081) Bldg 4361 Cold Storage & Bulk Fuel

Site Name:	Eielson AFB (CS081) Bldg 4361 Cold Storage & Bulk Fuel
Address:	Inner Loop Road, Between Buildings 4361 and 1232, Formerly SER-001 2008, Eielson AFB, AK 99702
File Number:	107.38.111
Hazard ID:	25877
Status:	Active
Staff:	Axl LeVan, 9074512156 axl.levan@alaska.gov
Latitude:	64.656788
Longitude:	-147.083177
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.

Site Chronology
IC / Closure Details
Documents
Associated Sites

Problems/Comments

The site, previously known as SER001-2008, now designated as Eielson AFB Bldg. 4361 Cold Storage & Bulk Fuel, was previously a fuel distribution and cold storage facility. Records indicate that one aboveground storage tank (AST) and one underground storage tank (UST) were removed in 1994, and two ASTs were removed in 1996. Fuel pipelines and distribution equipment is no longer on site, but there is no record of their disposal. In 2008, during excavation for work on a utilidor, soil from the excavation was analyzed for Gasoline Range Organics (GRO), Diesel Range Organics (DRO), Residual Range Organics (RRO), and benzene, toluene, ethylbenzene, and xylenes (BTEX). GRO (605 mg/kg), DRO (546 mg/kg), benzene (697 mg/kg), and ethylbenzene (10,300 mg/kg) were detected above DEC cleanup levels. 2009 and 2010 site investigations included shallow soil borings and groundwater sampling from temporary monitoring wells. Samples from 2009 and 2010 were tested for BTEX, volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs), and Resource Conservation and Recovery Act (RCRA) regulated metals. Maximum concentrations of analytes detected above DEC cleanup levels in soil: Benzene - 270 mg/kg; Ethylbenzene - 1,200 mg/kg; Toluene - 3,700 mg/kg; total Xylenes - 5,200 mg/kg; DDT - 35 mg/kg; DDD - 34 mg/kg; Chromium - 33 mg/kg; lead - 1,880 mg/kg. A number of VOCs were identified at or above DEC cleanup levels, including n-butylbenzene, sec-butylbenzene, t-butylbenzene, n-proplybenzene, 1,2,4-trimethylbenzene, 1,3,5-trimethybenzene. Maximum concentrations of analytes detected above DEC cleanup levels in groundwater: Benzene - 41 mg/L; Ethylbenzene - 7.2 mg/L; Toluene - 80 mg/L; total Xylenes - 28.4 mg/L. VOCs n-propylbenzene and 1,2,4-trimethylbenzene were detected at or above DEC cleanup levels. The Phase II SER Report recommends coordination with the ADEC for further characterization and remediation on this site. Future work will proceed in cooperation with ADEC under the Compliance Site Restoration Program.

Action Information

Action Date	Action	Description	DEC Staff
12/1/2008	Document, Report, or Work plan Review - other	Final Draft of Evnrionmental Restoration Support Services Quality Program Plan for SER001-2008 completed.	Hannah Harrison
9/10/2010	Document, Report, or Work plan Review - other	Letter addressed to Assistant Staff Judge Advocate for Eielson AFB from USEPA Legal. Letter describes three matters of concern for Eielson CS staff to consider: Status fo SER2008-001; Status of EPA's Review of OU3 DRAFT Environmental resotration Support Services Work Plan (April 2010-September 2011) aka "TCE Pilot Study" document; Status of Blair Lakes. Letter requests that USAF provide the EPA and ADEC Project Managers with a status report and proposed schedule, documentation previously requested for regulatory review process, and sampling data for 3 active source areas at Blair Lakes within 14 days of letter.	Hannah Harrison
9/15/2010	Document, Report, or Work plan Review - other	Two letters, one to USEPA CS Staff and one to USAF CS Staff, concerning comments on Characterization reports for SER001-2008. Letters indicate that the previously filed characterization reports do not meet the full requirements of Alaska statude and thus cannot be approved as a "site characterization report" by the ADEC CS program.	Hannah Harrison
9/25/2010	Document, Report, or Work plan Review - other	Letter to USAF CS Staff from USEPA CS Staff granting a 30 day extension for review and comment period for the "Draft SER001-2008 Site characterization". The letter states that the EPA has determined the need to conduct additional technical and regulatory review of the documents.	Hannah Harrison
9/30/2010	Update or Other Action	Letter addressed to US EPA Legal staff from Staff Judge Advocate for EAFB. Letter responds to previous notifications regarding timely completion of reports, sampling project, and report review.	Hannah Harrison
10/5/2010	Document, Report, or Work plan Review - other	Letter addressed to EAFB CS Staff from US EPA CS Staff concerning a Draft Phase 1 Source Evaluation Report document. Letter gives guidance in Eielson's preparing of SER documents for upcoming project manager meeting.	Hannah Harrison
7/1/2011	Document, Report, or Work plan Review - other	2011 –Draft Phase I Source Evaluation Report for CS081 received July 2011. Based on soil and groundwater data collected at the site in 2010 there appears to be a chemical source beneath the paved area onsite. No drainage pathways are located onsite; therefore, no release mechanism exists for surface water and sediment impacts. Phase II Source Evaluation Report (SER) will be completed as a site inspection. Additional environmental data will be collected. Added to CSP: 8/1/2014	Anna Iverson
9/16/2011	Document, Report, or Work plan Review - other	Letter addressed to US EPA CS Staff from TechLaw staff. Letter indicates that TechLaw has completed the Technical Review of the Draft Phase I Source Evaluation Report, SER001-2008 for Eielson AFB.	Hannah Harrison
9/20/2011	Document, Report, or Work plan Review - other	Letter addressed to Eielson AFB CS Staff from ADEC CS Staff. Letter concerns overdue reporting from Eielson regarding SER001-2008 and outlines regulations dictating the timeline for reports and documentation of contamination. Letter also introduces attached comments on SER Phase I reports from ADEC and US EPA.	Hannah Harrison
10/20/2011	Document, Report, or Work plan Review - other	Letter addressed to ADEC CS program staff from Eielson AFB CS Staff. The letter requests a 20 day extension for the USAF to complete and submit two documents: Draft Final Phase I SER001-2008 and Draft Final Phase II SER001-2008.	Hannah Harrison
10/26/2011	Document, Report, or Work plan Review - other	Letter addressed to Eielson CS Staff from ADEC CS program Staff. Letter gives approval for Eielson's Final Phase II Source Evaluation Report, SER001-2008. Letter also approves the disposition of the site to State of Alaska regulatory oversight.	Hannah Harrison
2/1/2012	Document, Report, or Work plan Review - other	2012 – Final Phase II Source Evaluation Report for CS081 received February 2012. This Source Evaluation Report (SER) Phase II assesses the source area designated as SER001-2008 at Eielson Air Force Base (AFB). In soil samples, concentrations of GRO, DRO, select VOCs, lead, and pesticides exceeded state soil cleanup levels and are considered contaminants of concern at the site. The extent of GRO, DRO, VOC, and lead exceedances has not been delineated in soil. The extent of pesticide exceedences is limited to shallow soil at two adjacent locations. RRO, additional VOCs, SVOCs, PAHs, and metals were detected in soil samples at concentrations below cleanup criteria. In groundwater samples, concentrations of VOCs and one SVOC (PCP) exceeded state groundwater cleanup levels and are considered contaminants of concern at the site. The extent of contaminants has not been fully delineated. It is recommended to preform additional characterization to delineate the extent of impacted soil and groundwater, and evaluate vapor intrusion indoor air pathway and implement remedial action at site. Added to CSP:8/1/2014	Anna Iverson
5/31/2012	Site Added to Database	A new site has been added to the database	Mitzi Read
6/4/2012	Exposure Tracking Model Ranking	Initial ranking with ETM completed for source area id: 79290 name: Bldg. 4361 Cold Storage & Bulk Fuel	David Robinson
10/9/2012	Update or Other Action	Site assigned to Senior Project Manager Kim DeRuyter. Staff Assigned Hannah Harrison.	Fred Vreeman
3/4/2013	Update or Other Action	Staff reviewed the Draft Source Evaluation Report for Multiple Sites at Eielson AFB, of which Bldg. 4361 is a part. In a letter dated March 4th, 2013, ADEC noted that the report does not meet the requirements of a Release Investigation, nor complete a full Site Characterization under State regulations. The letter also notes that completed sampling has thus far been limited, and that there are still data gaps to be addressed. Specific to Bldg 4361, the sampling done thus far finds levels of DRO in the soil above screening levels. DRO, GRO, and numerous VOCs were detected in the groundwater at very high levels.	Hannah Harrison
9/6/2013	Document, Report, or Work plan Review - other	2013 – Final QAPP SRI at site CS081 and CSM updates ST13/DP26, SS37, ST10,SS14, and LF03/FT09 received September 4, 2013. Specific analytes found in soil above the cleanup levels in 2010 were arsenic, BTEX, chromium, dichlorodiphenyltrichloroethane (DDT), dichlorodiphenyldichloroethane (DDD), and lead. Arsenic was found in most samples and was attributed to background levels. Source evaluation investigation delineated the southern and portions of the eastern extents BTEX in soil and groundwater, the extent of GRO and DRO is unknown. Updated in CSP 8/1/2014	Anna Iverson
6/13/2014	Update or Other Action	On April 23, 2014, the Alaska Department of Environmental Conservation and the United States Air Force reached agreement on the State-Eielson Air Force Base Petroleum Site Restoration Agreement (Two-party Agreement). This agreement was established to perform any necessary assessment, monitoring, remediation and cleanup determinations for petroleum contaminated sites at Eielson Air Force Base. This site was identified as a petroleum contaminated site requiring a response action and its cleanup will continue under Alaska regulations, following the procedures established in the agreement.	Monte Garroutte
5/27/2015	Update or Other Action	Comments provided to Air Force on Source Area CS081 Site Characterization Report Addendum to the Final 2013 Supplemental Characterization of Source Area CS081 Report, (DRAFT), Dated 27 April 2015	Eric Breitenberger
9/4/2015	Update or Other Action	Evaluation of USAF response to DEC comments on the "Source Area CS081 Site Characterization Report Addendum to the Final 2013 Supplemental Characterization of Source Area CS081 Report, (DRAFT)" dated 27 April 2015 completed. Evaluation sent to the USAF for consideration.	Melinda Brunner
11/5/2015	Update or Other Action	DEC reviewed the draft "Decision Document, Source Area CS081, Eielson Air Force Base" dated July 2015 (draft DD) and provided comments to the USAF. The draft DD describes the site history, characterization, and selected remedies for cleanup. The proposed cleanup techniques for the site include excavation and disposal of contaminated soil, as well as monitoring of groundwater.	Melinda Brunner
12/9/2015	Update or Other Action	DEC reviewed the draft final "Decision Document, Source Area CS081, Eielson Air Force Base" dated December 2015 (draft final DD) and provided comments to the USAF. The draft final DD describes the site history, characterization, and selected remedies for cleanup. The proposed cleanup techniques for the site include excavation and disposal of contaminated soil, as well as monitoring of groundwater.	Melinda Brunner
12/10/2015	Update or Other Action	DEC approved the "Source Area CS081 Site Characterization Report Addendum to the Final 2013 Supplemental Characterization of Source Area CS081 Report, (Final)" dated 4 December 2015 (the SCR Addendum).	Melinda Brunner
3/4/2016	Document, Report, or Work plan Review - other	DEC evaluated the “Draft Uniform Federal Policy for Quality Assurance Project Plan, Contaminated Soil Excavation, Transportation, and Disposal Site SER001-2008 (CS081), Eielson Air Force Base, Alaska” (CS081 QAPP) dated January 2016 and provided comments to the USAF. The CS081 QAPP describes the proposed excavation and disposal of approximately 10,000 tons of petroleum, oil, and lubricant- (POL-) contaminated soil; and approximately 200 tons of soil contaminated with trichloroethene (TCE), pesticides, or lead from the site. The field work is tentatively scheduled for 2016.	Melinda Brunner
4/28/2016	Document, Report, or Work plan Review - other	DEC evaluated the revised “Draft Uniform Federal Policy for Quality Assurance Project Plan, Contaminated Soil Excavation, Transportation, and Disposal Site SER001-2008 (CS081), Eielson Air Force Base, Alaska” (CS081 QAPP) dated March 2016 and provided comments to the USAF on 04/28/16. DEC received the revised version for review on 04/06/16. The field work is tentatively scheduled for 2016.	Melinda Brunner
5/23/2016	Cleanup Plan Approved	DEC issued a letter approving the “Final Uniform Federal Policy for Quality Assurance Project Plan, Contaminated Soil Excavation, Transportation, and Disposal, CS081 Eielson AFB, Alaska” dated May 2016 (CS081 QAPP). The CS081 QAPP describes how the U.S. Air Force (USAF) intends to excavate and dispose of approximately 7,250 cubic yards of contaminated soil from the site; and complete confirmation sampling of the excavation limits to document soil above DEC’s Method Two cleanup levels has been removed to greatest extent practicable. Implementation of the QAPP is scheduled to begin in May 2016.	Melinda Brunner
6/22/2016	Site Visit	Brunner and Breitenberger visited the site to observe the extent of soil removed to date under the "Final Uniform Federal Policy for Quality Assurance Project Plan, Contaminated Soil Excavation, Transportation, and Disposal, CS081 Eielson AFB, Alaska” dated May 2016. Work is temporarily halted pending analytical results. The site is secured with fencing.	Melinda Brunner
7/15/2016	Site Visit	Site visit by Breitenberger and DeRuyter on 7/15/16. Excavation is still open, and further excavation for POL is planned once contract option can be exercised. A transport request for remaining supersacks with PCE, lead, and pesticides has been submitted.	Eric Breitenberger
9/18/2018	CERCLA Remedial Design/Remedial Action Plan Approved	DEC approved the Final Work Plan for Removal Action and Monitoring at Source Areas CG517 and CS081, Eielson Air Force Base, Alaska, dated August 2018.	Bri Clark
5/9/2019	Document, Report, or Work plan Review - other	DEC provided comments on the Draft Remedial Action Report, Removal Action and Monitoring at Source Areas CG517 and CS081, Eielson Air Force Base, Alaska dated April 2019. The report describes the site activities that were performed to complete Remedial Action for sites CG517 and CS081.	Bri Clark
6/4/2019	Document, Report, or Work plan Review - other	DEC reviewed the Remedial Action Report for Removal Action and Monitoring at Source Areas CG517 and CS081. Based on the reporting: "the confirmation soil sample results demonstrate that the excavation has removed impacted soils in the southern portion of the excavation, including the southwest and southeast walls. Impacted soils, as evidenced by PID headspace analysis and analytical data indicate that impacted soil remains along the northern and northwestern portions of the excavation."	Dennis Shepard
2/24/2021	Exposure Tracking Model Ranking	A new updated ranking with ETM has been completed for source area 79290 Bldg. 4361 Cold Storage & Bulk Fuel.	Cascade Galasso-Irish
5/17/2022	Document, Report, or Work plan Review - other	DEC provided review comments for the Draft 2022 Installation-Wide Monitoring Program work plan. The work plan proposes one groundwater monitoring event in 2022 per the 2015 decision document. Monitoring wells proposed for sampling include an upgradient well (CS081MW01), two wells within the plume (CS081MW03, CS081MW04) and one well crossgradient of the plume (CS081MW02).	Dennis Shepard
9/18/2023	Document, Report, or Work plan Review - other	DEC reviewed and provided comments on the "Eielson AFB Two-Party Sites, Periodic Review - Draft, August 2023". The document reviewed and recorded the current status of two party sites (managed by USAF and DEC) at Eielson Air Force Base.	Axl LeVan
12/21/2023	Document, Report, or Work plan Review - other	DEC reviewed and approved "Draft-Final Periodic Review Report for Two-Party Sites at Eielson Air Force Base, Alaska, November 2023". This report documents the evaluation of the Interim Land Use Controls (Interim LUCs) for 23 two-party sites at EAFB.	Axl LeVan
6/21/2024	Document, Report, or Work plan Review - other	DEC reviewed and provided comments on the "Periodic Review Report for Two-Party Sites, Eielson Air Force Base, Alaska, April 2024." DEC had previously approved the document, but is reviewing an updated version after substantial changes to the document. This report documents the evaluation of the Interim Land Use Controls (Interim LUCs) and remedy implementation for 17 sites at EAFB.	Axl LeVan
7/9/2024	CERCLA ROD Periodic Review	DEC reviewed and approved the "Final Periodic Review Report for Two-Party Sites, Eielson Air Force Base, Alaska, July 2024". This report documents the evaluation of the Interim Land Use Controls (Interim LUCs) for 17 sites at EAFB. DEC approved a previous version of periodic review before substantial changes based on USAF legal review. Based on this DEC provided a new comment matrix addressing the updated version.	Axl LeVan

Action Date

Action

Description

DEC Staff

12/1/2008

Document, Report, or Work plan Review - other

Final Draft of Evnrionmental Restoration Support Services Quality Program Plan for SER001-2008 completed.

Hannah Harrison

9/10/2010

Document, Report, or Work plan Review - other

Letter addressed to Assistant Staff Judge Advocate for Eielson AFB from USEPA Legal. Letter describes three matters of concern for Eielson CS staff to consider: Status fo SER2008-001; Status of EPA's Review of OU3 DRAFT Environmental resotration Support Services Work Plan (April 2010-September 2011) aka "TCE Pilot Study" document; Status of Blair Lakes. Letter requests that USAF provide the EPA and ADEC Project Managers with a status report and proposed schedule, documentation previously requested for regulatory review process, and sampling data for 3 active source areas at Blair Lakes within 14 days of letter.

Hannah Harrison

9/15/2010

Document, Report, or Work plan Review - other

Two letters, one to USEPA CS Staff and one to USAF CS Staff, concerning comments on Characterization reports for SER001-2008. Letters indicate that the previously filed characterization reports do not meet the full requirements of Alaska statude and thus cannot be approved as a "site characterization report" by the ADEC CS program.

Hannah Harrison

9/25/2010

Document, Report, or Work plan Review - other

Letter to USAF CS Staff from USEPA CS Staff granting a 30 day extension for review and comment period for the "Draft SER001-2008 Site characterization". The letter states that the EPA has determined the need to conduct additional technical and regulatory review of the documents.

Hannah Harrison

9/30/2010

Update or Other Action

Letter addressed to US EPA Legal staff from Staff Judge Advocate for EAFB. Letter responds to previous notifications regarding timely completion of reports, sampling project, and report review.

Hannah Harrison

10/5/2010

Document, Report, or Work plan Review - other

Letter addressed to EAFB CS Staff from US EPA CS Staff concerning a Draft Phase 1 Source Evaluation Report document. Letter gives guidance in Eielson's preparing of SER documents for upcoming project manager meeting.

Hannah Harrison

7/1/2011

Document, Report, or Work plan Review - other

2011 –Draft Phase I Source Evaluation Report for CS081 received July 2011. Based on soil and groundwater data collected at the site in 2010 there appears to be a chemical source beneath the paved area onsite. No drainage pathways are located onsite; therefore, no release mechanism exists for surface water and sediment impacts. Phase II Source Evaluation Report (SER) will be completed as a site inspection. Additional environmental data will be collected. *Added to CSP: 8/1/2014*

Anna Iverson

9/16/2011

Document, Report, or Work plan Review - other

Letter addressed to US EPA CS Staff from TechLaw staff. Letter indicates that TechLaw has completed the Technical Review of the Draft Phase I Source Evaluation Report, SER001-2008 for Eielson AFB.

Hannah Harrison

9/20/2011

Document, Report, or Work plan Review - other

Letter addressed to Eielson AFB CS Staff from ADEC CS Staff. Letter concerns overdue reporting from Eielson regarding SER001-2008 and outlines regulations dictating the timeline for reports and documentation of contamination. Letter also introduces attached comments on SER Phase I reports from ADEC and US EPA.

Hannah Harrison

10/20/2011

Document, Report, or Work plan Review - other

Letter addressed to ADEC CS program staff from Eielson AFB CS Staff. The letter requests a 20 day extension for the USAF to complete and submit two documents: Draft Final Phase I SER001-2008 and Draft Final Phase II SER001-2008.

Hannah Harrison

10/26/2011

Document, Report, or Work plan Review - other

Letter addressed to Eielson CS Staff from ADEC CS program Staff. Letter gives approval for Eielson's Final Phase II Source Evaluation Report, SER001-2008. Letter also approves the disposition of the site to State of Alaska regulatory oversight.

Hannah Harrison

2/1/2012

Document, Report, or Work plan Review - other

2012 – Final Phase II Source Evaluation Report for CS081 received February 2012. This Source Evaluation Report (SER) Phase II assesses the source area designated as SER001-2008 at Eielson Air Force Base (AFB). In soil samples, concentrations of GRO, DRO, select VOCs, lead, and pesticides exceeded state soil cleanup levels and are considered contaminants of concern at the site. The extent of GRO, DRO, VOC, and lead exceedances has not been delineated in soil. The extent of pesticide exceedences is limited to shallow soil at two adjacent locations. RRO, additional VOCs, SVOCs, PAHs, and metals were detected in soil samples at concentrations below cleanup criteria. In groundwater samples, concentrations of VOCs and one SVOC (PCP) exceeded state groundwater cleanup levels and are considered contaminants of concern at the site. The extent of contaminants has not been fully delineated. It is recommended to preform additional characterization to delineate the extent of impacted soil and groundwater, and evaluate vapor intrusion indoor air pathway and implement remedial action at site. *Added to CSP:8/1/2014*

Anna Iverson

5/31/2012

Site Added to Database

A new site has been added to the database

Mitzi Read

6/4/2012

Exposure Tracking Model Ranking

Initial ranking with ETM completed for source area id: 79290 name: Bldg. 4361 Cold Storage & Bulk Fuel

David Robinson

10/9/2012

Update or Other Action

Site assigned to Senior Project Manager Kim DeRuyter. Staff Assigned Hannah Harrison.

Fred Vreeman

3/4/2013

Update or Other Action

Staff reviewed the Draft Source Evaluation Report for Multiple Sites at Eielson AFB, of which Bldg. 4361 is a part. In a letter dated March 4th, 2013, ADEC noted that the report does not meet the requirements of a Release Investigation, nor complete a full Site Characterization under State regulations. The letter also notes that completed sampling has thus far been limited, and that there are still data gaps to be addressed. Specific to Bldg 4361, the sampling done thus far finds levels of DRO in the soil above screening levels. DRO, GRO, and numerous VOCs were detected in the groundwater at very high levels.

Hannah Harrison

9/6/2013

Document, Report, or Work plan Review - other

2013 – Final QAPP SRI at site CS081 and CSM updates ST13/DP26, SS37, ST10,SS14, and LF03/FT09 received September 4, 2013. Specific analytes found in soil above the cleanup levels in 2010 were arsenic, BTEX, chromium, dichlorodiphenyltrichloroethane (DDT), dichlorodiphenyldichloroethane (DDD), and lead. Arsenic was found in most samples and was attributed to background levels. Source evaluation investigation delineated the southern and portions of the eastern extents BTEX in soil and groundwater, the extent of GRO and DRO is unknown. *Updated in CSP 8/1/2014*

Anna Iverson

6/13/2014

Update or Other Action

On April 23, 2014, the Alaska Department of Environmental Conservation and the United States Air Force reached agreement on the State-Eielson Air Force Base Petroleum Site Restoration Agreement (Two-party Agreement). This agreement was established to perform any necessary assessment, monitoring, remediation and cleanup determinations for petroleum contaminated sites at Eielson Air Force Base. This site was identified as a petroleum contaminated site requiring a response action and its cleanup will continue under Alaska regulations, following the procedures established in the agreement.

Monte Garroutte

5/27/2015

Update or Other Action

Comments provided to Air Force on Source Area CS081 Site Characterization Report Addendum to the Final 2013 Supplemental Characterization of Source Area CS081 Report, (DRAFT), Dated 27 April 2015

Eric Breitenberger

9/4/2015

Update or Other Action

Evaluation of USAF response to DEC comments on the "Source Area CS081 Site Characterization Report Addendum to the Final 2013 Supplemental Characterization of Source Area CS081 Report, (DRAFT)" dated 27 April 2015 completed. Evaluation sent to the USAF for consideration.

Melinda Brunner

11/5/2015

Update or Other Action

DEC reviewed the draft "Decision Document, Source Area CS081, Eielson Air Force Base" dated July 2015 (draft DD) and provided comments to the USAF. The draft DD describes the site history, characterization, and selected remedies for cleanup. The proposed cleanup techniques for the site include excavation and disposal of contaminated soil, as well as monitoring of groundwater.

Melinda Brunner

12/9/2015

Update or Other Action

DEC reviewed the draft final "Decision Document, Source Area CS081, Eielson Air Force Base" dated December 2015 (draft final DD) and provided comments to the USAF. The draft final DD describes the site history, characterization, and selected remedies for cleanup. The proposed cleanup techniques for the site include excavation and disposal of contaminated soil, as well as monitoring of groundwater.

Melinda Brunner

12/10/2015

Update or Other Action

DEC approved the "Source Area CS081 Site Characterization Report Addendum to the Final 2013 Supplemental Characterization of Source Area CS081 Report, (Final)" dated 4 December 2015 (the SCR Addendum).

Melinda Brunner

3/4/2016

Document, Report, or Work plan Review - other

DEC evaluated the “Draft Uniform Federal Policy for Quality Assurance Project Plan, Contaminated Soil Excavation, Transportation, and Disposal Site SER001-2008 (CS081), Eielson Air Force Base, Alaska” (CS081 QAPP) dated January 2016 and provided comments to the USAF. The CS081 QAPP describes the proposed excavation and disposal of approximately 10,000 tons of petroleum, oil, and lubricant- (POL-) contaminated soil; and approximately 200 tons of soil contaminated with trichloroethene (TCE), pesticides, or lead from the site. The field work is tentatively scheduled for 2016.

Melinda Brunner

4/28/2016

Document, Report, or Work plan Review - other

DEC evaluated the revised “Draft Uniform Federal Policy for Quality Assurance Project Plan, Contaminated Soil Excavation, Transportation, and Disposal Site SER001-2008 (CS081), Eielson Air Force Base, Alaska” (CS081 QAPP) dated March 2016 and provided comments to the USAF on 04/28/16. DEC received the revised version for review on 04/06/16. The field work is tentatively scheduled for 2016.

Melinda Brunner

5/23/2016

Cleanup Plan Approved

DEC issued a letter approving the “Final Uniform Federal Policy for Quality Assurance Project Plan, Contaminated Soil Excavation, Transportation, and Disposal, CS081 Eielson AFB, Alaska” dated May 2016 (CS081 QAPP). The CS081 QAPP describes how the U.S. Air Force (USAF) intends to excavate and dispose of approximately 7,250 cubic yards of contaminated soil from the site; and complete confirmation sampling of the excavation limits to document soil above DEC’s Method Two cleanup levels has been removed to greatest extent practicable. Implementation of the QAPP is scheduled to begin in May 2016.

Melinda Brunner

6/22/2016

Site Visit

Brunner and Breitenberger visited the site to observe the extent of soil removed to date under the "Final Uniform Federal Policy for Quality Assurance Project Plan, Contaminated Soil Excavation, Transportation, and Disposal, CS081 Eielson AFB, Alaska” dated May 2016. Work is temporarily halted pending analytical results. The site is secured with fencing.

Melinda Brunner

7/15/2016

Site Visit

Site visit by Breitenberger and DeRuyter on 7/15/16. Excavation is still open, and further excavation for POL is planned once contract option can be exercised. A transport request for remaining supersacks with PCE, lead, and pesticides has been submitted.

Eric Breitenberger

9/18/2018

CERCLA Remedial Design/Remedial Action Plan Approved

DEC approved the Final Work Plan for Removal Action and Monitoring at Source Areas CG517 and CS081, Eielson Air Force Base, Alaska, dated August 2018.

Bri Clark

5/9/2019

Document, Report, or Work plan Review - other

DEC provided comments on the Draft Remedial Action Report, Removal Action and Monitoring at Source Areas CG517 and CS081, Eielson Air Force Base, Alaska dated April 2019. The report describes the site activities that were performed to complete Remedial Action for sites CG517 and CS081.

Bri Clark

6/4/2019

Document, Report, or Work plan Review - other

DEC reviewed the Remedial Action Report for Removal Action and Monitoring at Source Areas CG517 and CS081. Based on the reporting: "the confirmation soil sample results demonstrate that the excavation has removed impacted soils in the southern portion of the excavation, including the southwest and southeast walls. Impacted soils, as evidenced by PID headspace analysis and analytical data indicate that impacted soil remains along the northern and northwestern portions of the excavation."

Dennis Shepard

2/24/2021

Exposure Tracking Model Ranking

A new updated ranking with ETM has been completed for source area 79290 Bldg. 4361 Cold Storage & Bulk Fuel.

Cascade Galasso-Irish

5/17/2022

Document, Report, or Work plan Review - other

DEC provided review comments for the Draft 2022 Installation-Wide Monitoring Program work plan. The work plan proposes one groundwater monitoring event in 2022 per the 2015 decision document. Monitoring wells proposed for sampling include an upgradient well (CS081MW01), two wells within the plume (CS081MW03, CS081MW04) and one well crossgradient of the plume (CS081MW02).

Dennis Shepard

9/18/2023

Document, Report, or Work plan Review - other

DEC reviewed and provided comments on the "Eielson AFB Two-Party Sites, Periodic Review - Draft, August 2023". The document reviewed and recorded the current status of two party sites (managed by USAF and DEC) at Eielson Air Force Base.

Axl LeVan

12/21/2023

Document, Report, or Work plan Review - other

DEC reviewed and approved "Draft-Final Periodic Review Report for Two-Party Sites at Eielson Air Force Base, Alaska, November 2023". This report documents the evaluation of the Interim Land Use Controls (Interim LUCs) for 23 two-party sites at EAFB.

Axl LeVan

6/21/2024

Document, Report, or Work plan Review - other

DEC reviewed and provided comments on the "Periodic Review Report for Two-Party Sites, Eielson Air Force Base, Alaska, April 2024." DEC had previously approved the document, but is reviewing an updated version after substantial changes to the document. This report documents the evaluation of the Interim Land Use Controls (Interim LUCs) and remedy implementation for 17 sites at EAFB.

Axl LeVan

7/9/2024

CERCLA ROD Periodic Review

DEC reviewed and approved the "Final Periodic Review Report for Two-Party Sites, Eielson Air Force Base, Alaska, July 2024". This report documents the evaluation of the Interim Land Use Controls (Interim LUCs) for 17 sites at EAFB. DEC approved a previous version of periodic review before substantial changes based on USAF legal review. Based on this DEC provided a new comment matrix addressing the updated version.

Axl LeVan

Contaminant Information

Name

Level Description

Media

Comments

Control Type

Type

Details

Requirements

Description

Details

Final Work Plan for Removal Action and Monitoring at Source Areas CG517 and CS081

No associated sites were found.

Missing Location Data

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Site Report: Eielson AFB (CS081) Bldg 4361 Cold Storage & Bulk Fuel

Site Chronology

IC / Closure Details

Documents

Associated Sites

Problems/Comments

Action Information

Contaminant Information

Control Type

Requirements

Final Work Plan for Removal Action and Monitoring at Source Areas CG517 and CS081

Missing Location Data

State of Alaska Department of Environmental Conservation