Skip to content Skip to content

Alaska Department of Environmental Conservation

You are here: DEC / SPAR / CSP / SPAR Online Services / Contaminated Sites Search / Site Report

Site Report: FAA Cape Yakataga Station Bldg 302 Heating Oil AST 38-A-008

Site Name: FAA Cape Yakataga Station Bldg 302 Heating Oil AST 38-A-008
Address: Building 302, Cape Yakataga, AK 99574
File Number: 2208.38.001
Hazard ID: 25323
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 60.082716
Longitude: -142.488129
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

This is the Non-Directional Beacon or NDB location. An SI conducted in FY91 identified stained soils beneath a 500-gallon heating oil AST (38-A-008) north of Building 302. Soil sample results detected DRO concentrations above ADEC cleanup levels, and gasoline odors were present in the area. In FY99, the AST and 150 feet of the associated piping were removed. Approximately 9.1 cu. yds of contaminated soils were excavated and put into a long-term stockpile on site. Confirmatory samples taken from the bottom of the excavations determined that DRO contamination remained above ADEC cleanup criteria (4200 mg/kg DRO) The excavation was stopped at the building foundation. Samples were also taken during the FY00 RI, and results indicated that DRO levels were still present above ADEC cleanup criteria (6110 mg/kg DRO and 64.1 mg/kg GRO at 4-6’bgs). No groundwater contamination was identified. The FY00 RI recommended natural attenuation for approximately 6 - 25 cu. yds of residual petroleum-contaminated soil. The Stockpile behind storage sheds was relocated to a passive biocell and the soils were shipped off-site in 2007. The 2012 Release Investigation found no contamination present in the top 15'. The smear zone at 20-22'bgs had 20 mg/kg DRO and 21 mg/kg RRO. Groundwater containted 0.18 mg/l DRO and 0.032 mg/l GRO.

Action Information

Action Date Action Description DEC Staff
12/13/1993 Site Added to Database A new site has been added to the database (Date adjusted from 1/12/2009 for report/query consistency. (Reese)) Mitzi Read
12/13/1993 Site Added to Database Chlorinated solvents, metals, diesel, gasoline and waste oil. Former Staff
12/21/1994 Update or Other Action (Old R:Base Action Code = RPL2 - Site Information Request Letter). Former Staff
2/7/1995 Update or Other Action (Old R:Base Action Code = SA2 - Phase II Site Assessment (General)). Review of "Compliance Investigation Report" --ADEC had no comment except that it was looking forward to work plan submittal. Randy Rice
11/28/1997 Site Ranked Using the AHRM Initial ranking. Sally Schlichting
2/18/2000 Meeting or Teleconference Held Met with FAA and contractor to discuss file, ADEC requirements for additional characterization, and target cleanup levels. Eileen Olson
2/28/2000 Update or Other Action Issued file review letter outlining alternatives for developing cleanup levels and requesting additional investigation and monitoring. Eileen Olson
3/23/2000 Site Ranked Using the AHRM Reranked site to reflect the presence of contamination in groundwater monitoring wells (Groundwater Exposure Index Value went from 0 to 1) and existence of on-site water well (groundwater Exposure went from 0.1 to 0.8)--the well is used for bathing and other purposes, but drinking water is brought in. Site was a high priority before changes were made and still is. Eileen Olson
6/29/2000 Site Characterization Workplan Approved Letter sent: Staff conditionally approved a release investigation work plan for additional characterization of soil and groundwater contamination at this remote facility, to begin by mid-July. FAA plans to construct several monitoring wells in highly contaminated areas, and several sentinel wells to determine whether groundwater contaminants are migrating off-site into the adjacent marine environment or other surface waters. FAA also plans to construct a lined and covered passive biocell to contain about 60 cubic yards of diesel contaminated soil. The soil will be placed in the cell in an 18-inch-thick lift. Soil type is primarily sandy gravel. Eileen Olson
11/16/2000 Meeting or Teleconference Held Meeting at FAA to discuss the findings of the Cape Yakataga investigation. Free product present. Requested table showing screened intervals correlated with water depths in monitoring wells. Eileen Olson
9/18/2002 Update or Other Action Sent letter requesting groundwater monitoring for all existing wells on site, with a schedule of monitoring to be submitted by March 31, 2003 and the monitoring to be complete by June 30, 2003. Elizabeth Stergiou
9/19/2002 Update or Other Action Sent letter requesting FAA submit the following documents by October 1, 2002: Environmental Compliance Investigation Report, the final release investigation report from 2000, status of free product and status of the all contaminated sites at the station. Elizabeth Stergiou
9/4/2003 Update or Other Action ADEC approved the workplan for the Fall 2003 Sampling and Analysis Plan for various sites. Deborah Williams
5/7/2004 Site Number Identifier Changed Region changed from 11 to 24. Former Staff
2/23/2007 Update or Other Action comment letter sent on the scope of work for landfill removal Debra Caillouet
4/10/2007 Update or Other Action Staff provided expedited comment on the draft landfill removal work plan Debra Caillouet
4/30/2007 Cleanup Plan Approved Plan to remove contents of landfill eroding into the Duktoth and charcterize and dispose was approved Debra Caillouet
8/20/2007 Cleanup Plan Approved The Phase II removal action work plan addendum was approved. The FAA will remove the top half of the landfill during August-September 2007 and store equipment at the site over winter. Another work plan will be provided for Phase III which will occur next spring to complete the removal of the contaminated soil. Debra Caillouet
10/12/2007 Exposure Tracking Model Ranking Debra Caillouet
3/7/2008 Update or Other Action Comments on the draft Phase I/II removal report were sent to the FAA. Debra Caillouet
3/24/2008 Update or Other Action Comments were sent on the Phase III landfill removal work plan. Debra Caillouet
11/20/2008 Document, Report, or Work plan Review - other Staff reviewed and prepared comment on the Cape Yakataga Debris Removal, Phase III Report, Revision 0, October 2008 Debra Caillouet
11/20/2008 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 78271 landfill. Debra Caillouet
1/9/2009 Interim Removal Action Approved Staff approved the PhaseI/II landfill removal report Debra Caillouet
1/12/2009 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 78678 name: Bldg 302 Heating Oil AST 38-A-008 Debra Caillouet
3/28/2012 Document, Report, or Work plan Review - other Draft Work Plan, Federal Aviation Administration Release Investigation, FAA Station Cape Yakataga, March 9, 2012 Debra Caillouet
8/23/2013 Document, Report, or Work plan Review - other Draft Release Investigation and Hydrocarbon Risk Calculator Report, Federal Aviation Administration, FAA Station Cape Yakataga, August 2013 Debra Caillouet
10/29/2013 Site Characterization Report Approved The 2012 Release Investigation found no contamination present in the top 15'. The smear zone at 20-22'bgs had 20 mg/kg DRO and 21 mg/kg RRO. Groundwater contained 0.18 mg/l DRO and 0.032 mg/l GRO. Debra Caillouet
11/20/2013 Cleanup Complete Determination Issued Based on the results of the Final Release Investigation and Hydrocarbon Risk Calculator Report, FAA Station Cape Yakataga, September 2013. NDB Building 302 (Hazard ID 25323) In 1999, a 500-gallon AST located on the northeast side of NDB Building 302 was removed along with 9 cy of diesel-contaminated soil. Confirmation samples collected from the excavation showed residual DRO contamination of 5,100 mg/kg at a depth of approximately 5.5 feet bgs. During an investigation in 2001, three soil borings were completed near NDB Building 302. One boring was completed as a monitoring well. DRO concentrations of 3,860 and 6,110 mg/kg were found between approximately 1 and 5 feet bgs. During the 2012 RI, 7 UVOST probes were advanced to investigate the extent of contamination at the NDB Building 302 AOC. One soil boring was advanced and one soil sample was collected for laboratory analysis of DRO, RRO, GRO, and BTEX. All analytical results were less than the applicable Method Two cleanup levels. A groundwater sample was collected from the existing monitoring well and analyzed for BTEX, GRO, DRO, and RRO. No analytes were detected at concentrations greater than ADEC groundwater cleanup levels. Results from in-situ screening, soil samples from one soil boring, and water samples from one monitoring well indicate that no soil or groundwater contamination is present in this AOC. It is recommended that this AOC be granted a Cleanup Complete designation with no ICs. ADEC concurs and is listing this site as Cleanup Complete in the Contaminated Sites Database. Debra Caillouet

Contaminant Information

Name Level Description Media Comments
DRO < Method 2 Most Stringent Soil

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.

There are no documents for this site report.

No associated sites were found.

Missing Location Data

Because the GIS location data for this site has not been entered, we cannot direct you to its position on the map. Click "Continue" to proceed to the Contaminated Sites Web Map or "Close" to return to the site report.
Continue     Close

Public Notices  •  Regulations  •  Statutes
Press Releases  •  Contact

 

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