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Site Report: AIA Tank #8 Heating Oil


Site Name: AIA Tank #8 Heating Oil
Address: Ted Stevens Int'l Airport, N. End of "C" Concourse, Anchorage, AK 99502
File Number: 2100.38.028.23
Hazard ID: 1212
Status: Cleanup Complete
Staff: ,
Latitude: 61.175091
Longitude: -149.982527
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

Diesel contamination from a 1,000-gallon heating oil underground storage tank (UST). UST was removed in 1991. Contamination (5,100 parts per million (ppm) diesel range organics (DRO) and 19.7 ppm benzene, toluene, ethylbenzene, and xylenes (BTEX) has migrated under the C Concourse. This release is in proximity to AIA C Concourse release (Reckey #1997210113101).

Action Information

Action Date Action Description DEC Staff
4/8/2004 Site Added to Database Diesel contamination. Eric Henry
4/9/2004 Site Ranked Using the AHRM Initial site ranking. No Longer Assigned
4/12/2004 Update or Other Action File number assigned: 2100.38.028.023. Sarah Cunningham
6/13/2007 Exposure Tracking Model Ranking Initial ranking. Todd Blessing
7/3/2007 Update or Other Action In accordance with 18 AAC 75.350, ADEC has determined that the unconfined groundwater (above the Bootlegger Cove Formation) at the Anchorage International Airport (AIA) is not a current or future drinking water source. This determination is subject to the following conditions: 1. It applies only within the Airside and Commercial RMZ’s, as described in the Airport-Wide Remediation Management Plan. It does not apply within the Ecological RMZ. 2. It does not establish alternative cleanup levels within those zones but allows ADEC to use the determination in making decisions in accordance with 18 AAC 75.345(b)(2) - (3). 3. Any drinking water wells located on AIA property must be properly abandoned in accordance with ADEC decommissioning procedures within two years of this decision. 4. AIA shall prohibit the installation of any water wells, used for drinking, cooling, washdown, or any other purposes, on the AIA either through 17 AAC 42.410 (b) (27) of the airport leasing regulations or in their individual lease agreement documents. 5. The existing AIA water well used to maintain the water level in Lake Hood is not considered a drinking water well. However, AIA is responsible for determining its wellhead protection area and ensuring that it maintains levels at or below 18 AAC 75.345 Table C values, unless otherwise approved by ADEC. March 19, 2007 Amendment: DEC has determined that the shallow groundwater along the Lake Hood shoreline is not a current or future drinking water source in accordance with 18 AAC 75.350. Therefore, the March 2001 groundwater use determination is amended to include the shallow groundwater in the Ecological RMZ in that determination. Lisa Krebs-Barsis
12/30/2014 Update or Other Action Updated the latitude and longitude. Lisa Krebs-Barsis
12/31/2014 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 72191 Heating Oil Spill. Lisa Krebs-Barsis
1/7/2015 Cleanup Complete Determination Issued ADEC has determined that the Tank 8 site cleanup is complete after reviewing the files and considering higher cleanup levels now applicable rather than cleanup levels that were applicable when the site was discovered. Migration to groundwater soil cleanup levels and groundwater cleanup levels do not apply to this site because of the 18 AAC 75.350 determination. Lisa Krebs-Barsis

Contaminant Information

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

Missing Location Data

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