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Site Report: AKARNG Saint Mary's FSA


Site Name: AKARNG Saint Mary's FSA
Address: Kussug Road, Saint Marys, AK 99658
File Number: 2444.38.002
Hazard ID: 3200
Status: Cleanup Complete
Staff: ,
Latitude: 62.050047
Longitude: -163.184292
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 product from heating oil system. Lot 1, Block 9, City of St. Mary's Subdivision. The only known release at the Saint Mary’s FSRC occurred at the secondary containment release valve below the 3,000-gallon, double walled AST. Based on a 1995 inspection, fuel reportedly permeated into the ground approximately 3 to 4 inches along a 3-foot downhill path. Other historical areas of concern have included the former drum storage area located east of the FSRC building, the former snowmachine storage area located adjacent to the former conex storage van, former drums of Jet Propellant 4 (JP-4) fuel in poor condition adjacent to the 3,000-gallon, double-walled AST, and small oil leaks at the day tank piping inside the FSRC building (ERM/Hart Crowser, 1999). The site is currently undergoing excavation/remediation activities. December 2016: 2 areas were excavated that had diesel range organics (DRO) concentrations greater than the approved site-specific cleanup level of 10,250 mg/kg DRO. A total of 40 cubic yards of contaminated soil was removed from the site and disposed of at a permitted landfill in Arlington, Oregon leaving the site with DRO concentrations below the cleanup level.

Action Information

Action Date Action Description DEC Staff
7/27/1998 Update or Other Action Received Preliminary Assessment Records Review report and Draft Site Sampling Plan, both prepared by Hart Crowser, Inc. Scott Pexton
8/12/1998 Site Characterization Workplan Approved Letter sent with approval of draft site sampling plan. Scott Pexton
1/25/1999 Update or Other Action Received Draft Site Investigation report, prepared by Hart Crowser, Inc. Scott Pexton
6/17/1999 Update or Other Action Letter sent with comments on draft site investigation report. Scott Pexton
8/20/1999 Update or Other Action Received Final Site Investigation report, prepared by Hart Crowser, Inc. Scott Pexton
11/12/1999 Site Added to Database Petroleum product from heating oil system. Scott Pexton
11/23/1999 Site Ranked Using the AHRM Site ranked based on information in the August 1999 Final Site Investigation report, prepared by Hart Crowser, Inc. Scott Pexton
2/27/2002 Update or Other Action Received "Corrective Action Plan" prepared by Clearwater Environmental, Inc. The plan describes a proposed interim removal action to excavate up to 20 cubic yards of petroleum-contaminated soil to reduce potential exposure to grossly contaminated soil. The plan proposes method one cleanup levels for petroleum hydrocarbons excavated during the interim action, based on Table A1 of 18 AAC 75.341 (Category D cleanup levels proposed are 1,000 mg/kg for GRO, 2,000 mg/kg for DRO, and 2,000 mg/kg for RRO). BTEX concentrations are to be compared to method two, Table B1 Migration to Groundwater cleanup levels. Excavated soil to be transported to a thermal desorption treatment facility located in Lakewood, Washington. Scott Pexton
4/10/2002 Update or Other Action Received Final Interim Removal Action Plan prepared by Clearwater Environmental, Inc. Scott Pexton
4/15/2002 Site Characterization Report Approved Sent letter to Norm Straub of the Alaska Army National Guard with approval of the 1999 Final Site Investigation report prepared by ERM West, Inc./Hart Crowser, Inc. with conditions: (1) based on the information provided, ADEC does not approve the proposed alternative cleanup levels of 10,250 mg/kg for DRO, 1,400 mg/kg for gasoline range organics (GRO), 4.6 mg/kg for benzene, 2,770 mg/kg for toluene, 3,847 mg/kg for ethylbenzene, and 54,942 mg/kg for total xylenes; and, (2) soil cleanup levels provided under method one and method two apply at a contaminated site unless the department approves an alternative cleanup level that the responsible person has proposed under method three or method four (18 AAC 75.340 (d)). Letter also provided specific comments on the interim removal action plan provided by Clearwater Environmental, Inc. Scott Pexton
5/3/2002 Update or Other Action Received Email message from Norm Straub of AKARNG with attached Addendum for Final Interim Removal Action Plan. Scott Pexton
5/16/2002 Interim Removal Action Approved Letter sent to Norm Straub of AKARNG with approval of interim removal action plan (with addendum) prepared by Clearwater The plan describes procedures to conduct an interim removal action in accordance with 18 AAC 75.330. ADEC determined that the proposed interim removal action will reduce human and environmental exposure to hazardous substances at the site and help to prevent the migration of hazardous substances from the site to groundwater and surface water. Up to twenty cubic yards of petroleum-contaminated soil will be excavated and placed in 55-gallon steel drums or 1-cubic yard Supersacks for temporary storage onsite in an area lined with 10-mill polyethylene plastic. The drums or Supersacks will also be covered with a 6-mill polyethylene plastic cover. The contractor intends to transport the contaminated soil via barge to Seattle, Washington and then via highway to a thermal desorption treatment facility located in Lakewood, Washington. Prior to transporting the contaminated soil from the Saint Mary's Federal Scout Armory site, the Alaska Army National Guard contractor will obtain written ADEC approval to move the soil in accordance with 18 AAC 75.370 (b). Scott Pexton
5/16/2002 Record of Decision Cleanup Levels: Benzene = 0.02 mg/kg, GRO = 500 mg/kg, DRO = 1,000 mg/kg, and RRO = 2,000 mg/kg using method one, Table A1 and Table B1 at 18 AAC 75.341. Approximately 20 cubic yards of petroleum-contaminated soil will be excavated in accordance with an approved interim removal action plan. Scott Pexton
7/1/2002 Update or Other Action ADEC approved transport and temporal storage of contaminated soil in Alakanuk until Northland can backhaul to Seattle. Beatrice Egbejimba
7/10/2002 Update or Other Action Received faxed documentation from Norm Straub of the Alaska Army National Guard regarding TPS Technologies Inc., a soil treatment facility in the State of Washington, including a copy of the operating permit, and a letter indicating acceptance of soils from seven AKARNG facilities. Scott Pexton
4/8/2004 Update or Other Action File number assigned: 2444.38.002. Sarah Cunningham
6/16/2004 Update or Other Action AKARNG Alakanuk FSA Beatrice Egbejimba
9/1/2005 Interim Removal Action Approved The Interim Removal Action report for the Alaska Army National site in St. Mary's was approved. The report documents that 22.3 tons of petroleum contaminated soil were removed and treated at TPS Technologies in Washington. Diesel range organics (DRO) were found up to 20,200 mg/kg remaining in the southern sidewall of the excavation. Because residual petroleum contamination in soil, for five of six confirmation samples, exceeds 18 AAC 75.341 Table B1 migration to groundwater cleanup levels, additional site characterization and/or cleanup are necessary. Debra Caillouet
4/2/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Debra Caillouet
8/19/2008 Update or Other Action Staff sent comments on the draft Work Plan Federal Scout Armory St Mary;s July 2008 Debra Caillouet
2/12/2009 Site Characterization Report Approved The Secondary Site Characterization, Federal Scout Armory, St. Mary’s Alaska, December 2008 was reviewed. The report documents many areas that meet cleanup levels, but does not appear to have accurately delineated where contamination remains at the Armory. DEC is concerned that the report notes about 2000 cubic yards of potentially contaminated soil was removed to place underground utilities. Please contact the appropriate person(s) in St. Mary’s to determine what, if any, characterization of the soil took place and to determine where this soil is currently located. DEC would like this information by May 1, 2009. Debra Caillouet
4/9/2009 Update or Other Action A letter was recieved explaining that there was an error and 2000 yards was actually the year 2000 and it was a transcription error from the field notes. Debra Caillouet
2/3/2010 Meeting or Teleconference Held Staff participated in the Installation Action Plan meeting. Debra Caillouet
11/30/2010 Report or Workplan 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
1/26/2011 Site Characterization Workplan Approved Final Work Plan for Site Characterization at 21 Alaska Federal Scout Readiness Centers, January 2011 and the Site Specific Plans for Akiak, St. Mary’s and Tuntutuliak. Debra Caillouet
5/23/2011 Site Characterization Workplan Approved Final Work Plan for Site Characterization at 21 Alaska Federal Scout Readiness Centers, April 2011 approved. Debra Caillouet
4/3/2013 Site Characterization Report Approved Saint Mary’s Federal Scout Readiness Center, Data Gap Investigation Report, February 2013 The report incorporates acceptable responses to previously supplied comment and meets the requirements of 18 AAC 75.335 Site Characterization. Debra Caillouet
6/10/2013 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74175 Spills/leaks. Debra Caillouet
9/30/2013 Cleanup Level(s) Approved ROD Debra Caillouet
7/24/2015 Cleanup Plan Approved Final Saint Mary’s Remedial Action Plan, Federal Scout Readiness Center, July 14, 2015 Debra Caillouet
12/17/2015 Update or Other Action Staff changed to Danielle Duncan and hard file transferred to the Juneau office. Kristin Brown
12/23/2015 Update or Other Action Remediation will occur this summer. Work plan has already been approved. There is no groundwater contamination. Danielle Duncan
5/3/2016 Update or Other Action Field work is planned for June. Danielle Duncan
9/28/2016 Report or Workplan Review - Other Reviewed the Draft Remedial Action Report this date and provided comments: specifically: The report states that 40 cubic yards of contaminated soil was removed, but the narrative describes only 30 cubic yards. The waste management inventory paperwork says 20 cubic yards. Please revise. Danielle Duncan
12/21/2016 Final Cleanup Report Reviewed According to the Final St. Mary’s Remedial Action Report prepared by Eagle Eye Electric LLC, all of the contaminated soil having diesel range organics concentrations greater than the cleanup level of 10,250 mg/kg have been disposed of in Arlington, OR. Danielle Duncan
12/21/2016 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74175 Spills/leaks. Danielle Duncan
12/13/2017 Cleanup Complete Determination Issued A remedial action was completed in June 2016. Excavation 1 centered at historical sample 11STMSB003. Excavation 2 targeted historical sample STM003. Fifty yd3 of petroleum contaminated soil was removed from the site and disposed of at a permitted landfill in Arlington, Oregon. Danielle Duncan

Contaminant Information

Name Level Description Media Comments
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil The approved site-specific cleanup level for soil at the site is 10,250 milligrams per kilogram (mg/kg) DRO, which corresponds to the soil ingestion/direct contact pathway for the under-40 inch precipitation zone as outlined in 18 AAC 75.340 Table B2.

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)

Missing Location Data

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