Site Report: FAA Bettles UST 46-C-011 Bldg 111
| Site Name: | FAA Bettles UST 46-C-011 Bldg 111 |
|---|---|
| Address: | Bettles Airport, Bettles, AK 99726 |
| File Number: | 890.38.014 |
| Hazard ID: | 4685 |
| Status: | Active |
| Staff: | Sarah Durand, 9074655229 sarah.durand@alaska.gov |
| Latitude: | 66.916654 |
| Longitude: | -151.516238 |
| 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
Heating oil UST 46-C-011 was decommissioned in FY91 and approximately 25 cu. yds of impacted soil was landfarmed at the Nondirectional Beacon. Confirmation sampling indicated that EPH was detected in soil from the western sidewall of the excavation above ADEC cleanup levels. Additional soil could not be excavated due to the presence of the foundation of Building 111. Consultants recommended that a release investigation be conducted. New heating oil AST was removed in August 2020 and no contamination was found after excavation. There are several buried utility systems around the old heating oil UST location that prevent RI work. The RP stated in 9/21 that the buildings at this overall site need to be removed before RI work can occur.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 1/1/1991 | Leaking Underground Storage Tank Cleanup Initiated - Petroleum | A 500 gallon heating oil tank and approximately 55 cubic yards of potentially contaminated soil was removed from the site in 1991. One sample along the sidewall of the excavation near the building foundation contained 3,500 ppm DRO. Further excavation would have jepordized the structural integrity of the building. | Kim DeRuyter |
| 1/1/1991 | Site Added to Database | Site added to the database. (Date adjusted from 8/14/2008 for report/query consistency. (Reese)) | Mitzi Read |
| 10/21/2008 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 75752 name: FAA Bettles Station Building 111. Site ranking for human health risk - deminimus exposure to subsurface soil contamination. | Kim DeRuyter |
| 2/26/2013 | Update or Other Action | Transferred from DeRuyter to Vreeman. File review ordered. | Fred Vreeman |
| 3/3/2015 | Update or Other Action | DEC corresponded with the FAA project manager regarding this site. This site was left out of active FAA records, so it was not included in the 2015 work plan. However, an investigation should be included in the next round of FAA Bettles field activities. | Monte Garroutte |
| 8/11/2015 | Update or Other Action | Transferred site to PM Garroutte. Contacted FAA this day to determine plans for next phase of work at all Bettles sites. | Fred Vreeman |
| 8/8/2016 | Document, Report, or Work plan Review - other | DEC has completed review of the Draft Release Investigation Report, Bettles Field FAA Station, Bettles, Alaska, dated July, 2016. | Monte Garroutte |
| 12/13/2019 | Document, Report, or Work plan Review - other | DEC approved the Final 2019 Groundwater Monitoring Program Report, FAA Stations in Bettles, Cape Yakataga, and St. Mary’s, AK, Dated December 2019. This report details 2019 groundwater monitoring activities at the Bettles, St. Mary’s, and Cape Yakataga FAA stations. Monitoring activities included collecting groundwater samples from existing wells at Bettles, St. Mary’s, and Cape Yakataga. Additionally, sediment samples were collected and analyzed at Cape Yakataga. One well at the Bettles site showed a cleanup level (CUL) exceedance of napthalene, but other wells exhibited no exceedances. Similarly, at the St. Mary’s site, one well exceeded the naphthalene CUL, but all other analytes were below CULs. One of the wells scheduled to be sampled at St. Mary’s was deemed unusable due to damage and subsequent low recharge. At the Cape Yakataga site, petroleum contamination remains above CULs in several wells, with contaminant concentrations increasing in some wells and decreasing in others. Several wells were not sampled due to insufficient water or the presence of free product. Additionally, several sediment samples were found to contain DDT and DDE above National Oceanic and Atmospheric Administration Screening Quick Reference Tables threshold and probable effects levels. | Kevin Fraley |
| 6/9/2021 | Document, Report, or Work plan Review - other | Draft WP received. WP covers multiple FAA sites: Bettles (1374, 23785, 4685, 24284), Cape Yakataga (485, 26150, 25322), Chena NDB (26486), Puntilla Lake, and St Mary's. Comments sent 06/16/2021.Acceptance of RTC sent 06/25/2021.Approval letter for final WP sent 07/06/2021. | Shonda Oderkirk |
| 12/6/2021 | Document, Report, or Work plan Review - other | Draft Groundwater Monitoring for FAA Stations Bettles, Puntilla, Chena NDB. Report was supposed to include Yakataga and St. Mary's, but they weren't able to get out there due to COVID restrictions. 1/5/2022 Comments sent.DEC RTC sent 2/8/2022. 03/01/2022: received Final report copy. Approval letter sent 03/07/2022. | Shonda Oderkirk |
Contaminant Information
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Requirements
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There are no documents for this site report.
No associated sites were found.