Site Report: FAA Summit Former Housing South
| Site Name: | FAA Summit Former Housing South |
|---|---|
| Address: | ~Mile 201 Parks Highway, Cantwell, AK 99729 |
| File Number: | 150.38.031 |
| Hazard ID: | 26619 |
| Status: | Active |
| Staff: | Jenny Gates, 9072628203 jenny.gates@alaska.gov |
| Latitude: | 63.327011 |
| Longitude: | -149.132119 |
| 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
Updated January 2022 Unreported leaks or spills from above-ground storage tanks appear to be the source of petroleum contaminated soil. The area of concern includes FAA Summit former housing buildings 109, 110. Soil contaminants include diesel range organics (DRO) and polycyclic aromatic hydrocarbons (PAHs). Groundwater contaminants include DRO. No remediation has taken place at this area of concern. Over the years, numerous monitoring wells have been installed/repaired/decommissioned. As of 2022, there are 18 remaining wells sitewide. There are 6 MWs in the area and down gradient of the former Bldgs 109 and 110. One well had level of DRO of 4,120 ug/L. Another well had naphthalene at 43.2 ug/L and 1-Methylnaphthalene of 12.3 ug/L.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 5/4/2016 | Site Characterization Report Approved | DEC approved Follow-on Site Investigation Report for FAA Summit Station. There were two primary objectives for the follow-on site investigation activities: 1) to further delineate the extent of petroleum contamination at the Summit FAA Station and 2) to determine the nature of the subsurface water at the site. The report concluded that the subsurface water monitored at the Summit FAA Station is not expected to transport any contaminants to nearby surface water or drinking water sources which have been located a minimum of approximately 5 miles away. | Joy Whitsel |
| 10/6/2016 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 2/6/2017 | Meeting or Teleconference Held | DEC met with FAA and contractors to discuss steps necessary for closure. For Former Housing North (HazardID 26620) HRC results will be accepted. For areas of concern (AOCs) where contamination of groundwater or infiltrating subsurface water is present, DEC agrees to review groundwater modeling that proposes to demonstrate that the contamination plume is at equilibrium. Calculation of cumulative risk will be based on source area and assessed on a site by site basis. Regarding establishment of institutional controls (ICSs) at the site, DEC is concerned that the landowner Alaska Dept of Transportation (ADOT) lacks an existing mechanism for tracking and maintaining ICs. Future coordination between the FAA, ADEC and the ADOT will be necessary have to successfully implement ICs restricting groundwater usage. | Joy Whitsel |
| 3/19/2021 | Document, Report, or Work plan Review - other | Received Draft Summit FAA Station Long Term Monitoring Report dated February 2021. DEC comments sent March 4, 2021. RTC received March 12, 2021.Approval sent 5/27/21. | Shonda Oderkirk |
| 3/8/2024 | Document, Report, or Work plan Review - other | Oderkirk received Draft FAA Summit Site Investigation and Groundwater Monitoring Work Plan, 10.04.2023; ADEC comments sent 10.12.2023; FAA RTCs received 01.08.2024; ADEC received the final work plan document 03.06.2024. ADEC work plan approval letter sent to FAA on 03.08.2024. | Jenny Gates |
| 8/20/2024 | Offsite Soil or Groundwater Disposal Approved | Contaminated Media Transport and Treatment or Disposal Approval Form received for the transport of 10 soil borings generated during site investigation on 06.11.2024. IDW soil is contained in a one-55-gallon drum and will be transported to WA for disposal. COCs are listed as POL-gas and diesel-contaminated soil. ADEC approved and sent signed form on 08.20.2024. | Jenny Gates |
| 9/24/2024 | Document, Report, or Work plan Review - other | Draft 2024 FAA Summit Site Investigation and Groundwater Monitoring Report received 09.24.2024; ADEC comments sent 11.01.2024; FAA RTCs received 11.06.2024; ADEC RTCs sent to FAA on 12.12.2024;FAA RTCs received on 01.14.2025; Final ADEC comment table and approval letter sent on 01.16.2025. | Jenny Gates |
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.