Site Report: Dutch Hbr-Mt. Ballyhoo Spit Tank Farm
| Site Name: | Dutch Hbr-Mt. Ballyhoo Spit Tank Farm |
|---|---|
| Address: | NE End of Ballyhoo Road; Amaknak Island, Unalaska, AK 99685 |
| File Number: | 2542.38.014 |
| Hazard ID: | 25718 |
| Status: | Active |
| Staff: | Sarah Bernhardt, 9072697527 sarah.bernhardt@alaska.gov |
| Latitude: | 53.914410 |
| Longitude: | -166.505160 |
| Horizontal Datum: | WGS84 |
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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 area includes known and suspected fuel tanks (two ASTs of unknown size), 8-inch pipelines running to the airport, an aviation fuel dockm a truck-loading stand, and suspected utilidors along the spit. Tanks were removed in the mid-1980's, however the aviation fuel dock appeared to be in use in the mid 1990's. In 2002, four soil samples and two groundwater samples were collected. Arsenic was the only contaminant detected above ADEC CULs and the calculated background value, at a maximum detection of 12 mg/kg.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 5/1/2000 | CERCLA RI Report Approved | The Comprehensive Remedial Investigation Report was received. This document discusses the field activities and results from 1996, 1997, 1998, and 1999. Activities included site investigations (SI), Interim Removal actions (IRA) and Remedial Investigations (RI). These various activities were performed at 56 sites throughout the entire Amaknak/Unalaska FUDS. Sampling was conducted to determine both site-specific as well as background levels of contaminants of concern. 93 USTs, 1 AST, associated piping, and 230 drums, contaminated liquid, sludge, and soil were removed during the IRA. Soil borings were drilled, monitoring wells installed and samples were taken to determine type and extent of contamination. Where appropriate a Method Three ACL was calculated. 31 sites are recommended for no further action (NFA) and 25 sites were recommended for further remedial action. It is recommended for the Ballyhoo Spit Tank Farm that further investigation be conducted downgradient of the former tank locations. If a records search does not previous analytical data, test pits should be dug and samples analyzed downgradient of the tanks. | Meghan Dooley |
| 6/13/2003 | CERCLA SI | The 2001/2002 Islandwide SI/RI/IRA Report was received. The report documents the work completed during the 2001 and 2002 field seasons at various sites throughout Amaknak and Unalaska. After encountering groundwater in two test pits in 2002, well points were installed and groundwater samples were collected. Soil samples were also collected from the hand borings adjacent to each well point. Sheen and odor were detected at WP-1, however no results were above cleanup levels in both samples. Strong fuel odor was also detected in soil samples, however no analytes were above cleanup levels except arsenic. Because contaminants were below cleanup levels, the report recommends the site for no further action. | Meghan Dooley |
| 12/20/2010 | CERCLA Proposed Plan | DEC sent comments on the draft Proposed Plan #6 that addresses various sites at the Amaknak FUDS, including Mt. Ballyhoo Spit Tank Farm. Major comment included the following: 1. The need for more specific details on how Institutional controls will be established and maintained, 2. Further characterization is necessary at several sites, 3. Landowner concurrence with proposed ICs. DEC also had site specific comments regarding the basis for alternative cleanup levels and inclusion of arsenic in risk calculation. | Meghan Dooley |
| 9/15/2011 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 9/23/2011 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 79158 name: Dutch Hbr-Mt. Ballyhoo Spit Tank Farm | Meghan Dooley |
| 1/31/2024 | Document, Report, or Work plan Review - other | Per the review of the Draft Restoration Summary Report, Containerized Hazardous, Toxic, and Radioactive Waste. Amaknak Formerly Used Defense Sites F10AK0841-13, -14, -15, -16, -18, -20, Unalaska Valley, Pyramid Valley-Port Levashef, Summer Bay-Humpy Cove, Margaret Bay-Airport, Mount Ballyhoo, and Little South America (2023), this site is anticipated for FY2025 contract. | Cascade Galasso-Irish |
Contaminant Information
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Control Type
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Requirements
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There are no documents for this site report.
No associated sites were found.