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Site Report: AKARNG Eek Federal Scout Armory

Site Name: AKARNG Eek Federal Scout Armory
Address: Lot 3, Block 9, Tract A, USS 4484, Eek, AK 99578
File Number: 2412.38.001
Hazard ID: 1864
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 60.218594
Longitude: -162.028935
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

Petroleum contamination at site. Cleanup occurred in 2014, report pending.

Action Information

Action Date Action Description DEC Staff
2/15/1996 Site Added to Database Site added to database. Bill Wright
2/22/1996 Site Ranked Using the AHRM Site ranked. Bill Wright
3/27/1996 Preliminary Assessment Approved (Old R:Base Action Code = SA1A - Phase I Site Assessment Approval). DRO detected in soil in eight samples ranging from 3,800 to 20,000 mg/kg. Benzene detected in one sample at 0.91 mg/kg. Bill Wright
3/27/1996 Update or Other Action Letter sent with approval of site investigation report prepared by Environmental Health Sciences-Alaska, Inc. Bill Wright
9/9/1997 Site Ranked Using the AHRM Site reranked. Changed Quantity Value from 1 to 2.1; Site Access Value from 0 to 3; Air Exposure Index Value from 0.1 to 0.2; Population Density Value from 3 to 5; GW Exposure Index Value from 0 to 0.4; SW Usage Value from 0.5 to 1; SW Exposure Index Value from 0 to 1; and SW Environments from 2 to 3. Former score was 5. Scott Pexton
8/10/1998 Update or Other Action Letter sent with comments on draft Remedial Investigation report prepared by HartCrowser, Inc. Scott Pexton
10/12/1999 Site Ranked Using the AHRM Site reranked based on information in October 1998 report and 9/9/98 letter from William Vagt. Scott Pexton
1/26/2000 Update or Other Action Received Corrective Action Plan prepared by Clearwater Environmental Inc. for the Alaska Army National Guard. Scott Pexton
2/28/2000 Update or Other Action Received a copy of faxed comments from Alaska Army National Guard. Plan will be revised and resubmitted as an interim removal action. Scott Pexton
4/18/2000 Update or Other Action Received revised Corrective Action Plan, prepared by Clearwater Environmental. Scott Pexton
4/25/2000 Interim Removal Action Approved Letter sent to Norm Straub of the Alaska Army National Guard with approval of intermin action to excavate up to 20 cubic yards of petroleum contaminated soil. Scott Pexton
11/27/2000 Update or Other Action ADEC received Post Treatment Report for Eek Additional Soil Remediation, prepared by BNC International, Inc. Also, ADEC received Draft Interim Removal Action report, prepared by Clearwater Environmental, Inc. Scott Pexton
11/28/2000 Update or Other Action Received DRAFT Interim Removal Action report prepared by Clearwater Environmental, Inc. Scott Pexton
9/25/2001 Update or Other Action Received email with attachments with comments from the Alaska Army National Guard project manager to be addressed in the final interim removal action report. Scott Pexton
12/18/2001 Update or Other Action Received Final Interim Removal Action Report prepared by Clearwater Environmental, Inc. for the Alaska Army National Guard. A total of 20 cubic yards of soil was removed from the site in eighty 55-gallon drums for transport to the BNCI facility in Bethel. Confirmation soil samples collected from the excavation were reported at DRO concentrations ranging from 742 to 50,700 mg/kg. Benzene was reported in one confirmation soil sample at 0.152 mg/kg. Scott Pexton
8/4/2003 Update or Other Action ADEC sent letter to Norman Straub of Anchorage Army National Guard (AKARNG) with comments regarding Draft Alternative Cleanup Level Demonstration Project dated December, 2002. Beatrice Egbejimba
8/5/2003 Update or Other Action ADEC sent letter to Norman Straub of Anchorage Army National Guard (AKARNG) with comments regarding Draft Alternative Cleanup Level Demonstration Project dated December, 2002. Beatrice Egbejimba
8/20/2003 Update or Other Action ADEC sent letter to Norman Straub of Anchorage Army National Guard (AKARNG) with approval of Alternative Cleanup Level Demonstration Project workplan dated August, 2003. Beatrice Egbejimba
3/16/2004 Update or Other Action File number assigned: 2412.38.001. Sarah Cunningham
5/17/2005 Update or Other Action Staff reviewed the IAP and sent the following letter: The IAP fairly summarizes the results of a Site Investigation in 1994 resulting from a release of approximately 350 gallons of heating oil from a 2000 gallon AST in 1993. A remedial Investigation in 1997 found permafrost in all 17 borings at 3' – 4.5' below ground surface (bgs). Diesel Range Organics (DRO) were found at levels up to 56,000 mg/kg, but the results are impacted by moisture content of 73%. An Interim Removal Action in May 2000 removed 20 cubic yards of impacted soil. Confirmation sampling showed DRO remaining in the bottom of the excavation at 8 inches bgs up to 50,000 mg/kg and at the end furthest from the building up to 31,800 mg/kg 6 inches bgs. The moisture content in these samples were 66% and 77% respectively. Benzene was not detected in the confirmation samples but the practical quantitation limit for the samples ranged from 0.0201 mg/kg to 0.152 mg/kg. An Alternate Cleanup Level report for the site is pending. The cleanup strategy for the site proposed in the IAP includes additional source removal, institutional controls, public outreach about potential impacts to development on adjacent parcels and five-year reviews. Please clarify where the property boundaries are and where contamination may have migrated off-site. The area of the Eek Armory is on a wetland and impacts to the wetland will need to be considered along with the levels and extent of contamination in determining the necessity of future remedial action. The Alaska Department of Environmental Conservation (DEC) concurs with the proposed cleanup strategy and will work with you to determine the most appropriate actions for the site. Debra Caillouet
9/8/2005 Update or Other Action Staff reviewed a draft ACL report and sent detailed comments to the Guard. Debra Caillouet
3/14/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Debra Caillouet
4/15/2008 Site Characterization Report Approved Staff accepted the final ACL report. Debra Caillouet
8/13/2008 Update or Other Action Staff reviewed the site characterization work plan and provided comment to the AKARNG. Debra Caillouet
12/4/2008 Document, Report, or Work plan Review - other The secondary site characterization report was reviewed and comment sent to the Guard. Debra Caillouet
2/17/2009 Document, Report, or Work plan Review - other The final Secondary Site Characterization Report was accepted. Debra Caillouet
2/3/2010 Meeting or Teleconference Held Staff participated in the Installation Action Plan meeting. Debra Caillouet
11/30/2010 Document, Report, or Work plan Review - other Staff reviewed and sent comment to the Alaska Army National Guard on the Draft Work Plan for Site Characterization at 21 Alaska Federal Scout Readiness Centers, November 2010, including the Site Specific Plans for Akiak, St. Mary’s and Tuntutuliak. Debra Caillouet
6/11/2012 Document, Report, or Work plan Review - other Eek Federal Scout Readiness Center, Data Gap Investigation Report, March 2012 Debra Caillouet
2/4/2013 Site Characterization Report Approved Eek Federal Scout Readiness Center, Data Gap Investigation Report, January 2013 The investigation defined the areas of the site with soil contamination from diesel range organics (DRO) and residual range organics (RRO) remaining. Suprapermafrost groundwater has been impacted with DRO but does not appear to be migrating off-site. The hydrocarbon risk calculator was used to calculate proposed alternative cleanup levels of 11,500 mg/kg DRO, and 5693 mg/kg RRO. ADEC has no objection to the use of these soil cleanup levels. The report recommends no further action for the suprapermafrost groundwater and ADEC concurs. Debra Caillouet
5/31/2013 Cleanup Level(s) Approved Debra Caillouet
8/15/2014 Cleanup Plan Approved Final Remedial Action Plan, Federal Scout Readiness Center, Eek, Alaska August 2014 Debra Caillouet
2/6/2015 Document, Report, or Work plan Review - other Comment was sent on the draft Remedial Action Report Debra Caillouet
3/27/2015 Cleanup Complete Determination Issued Based upon the final Remedial Action Report Debra Caillouet
3/27/2015 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 72842 Spills. Debra Caillouet

Contaminant Information

Name Level Description Media Comments
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.
Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70)

No associated sites were found.

Missing Location Data

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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
TDD: 800-770-8973
Physical Location: 410 Willoughby