Site Report: Yakutat AFB Khantaak Island Base End Station AOC F1
| Site Name: | Yakutat AFB Khantaak Island Base End Station AOC F1 |
|---|---|
| Address: | Point Munoz, Khantaak Island; ~7 Miles NW of Yakutat Airport, Yakutat, AK 99689 |
| File Number: | 1530.38.011 |
| Hazard ID: | 26915 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 59.585894 |
| Longitude: | -139.801757 |
| 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
Khantaak Island Base End Station (also referred to as AOC F1) is located on the western side of Khantaak Island near Point Munoz. Based on a building inventory, the area of concern contained six buildings during WWII, including a Powerhouse and a Base End Structure. Petroleum contamination is present in soil above applicable cleanup levels.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 8/3/2018 | Document, Report, or Work plan Review - other | The ADEC Contaminated Sites Program submitted comments on the Draft CON/HTRW Remedial Investigation Report Yakutat Air Base Formerly Used Defense Sites AOCs: E1, E3/Hospital Loop, F1, G, K1, and M4 (F10AK0606-12, 13, 14, 15, 16, and 19)Yakutat, Alaska. | Jessica Morris |
| 9/12/2018 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 11/5/2018 | Meeting or Teleconference Held | The ADEC Contaminated Sites Program had a resolution meeting to discuss comments on the Draft CON/HTRW Remedial Investigation Report Yakutat Air Base Formerly Used Defense Sites AOCs: E1, E3/Hospital Loop, F1, G, K1, and M4 (F10AK0606-12, 13, 14, 15, 16, and 19)Yakutat, Alaska. | Jessica Morris |
| 6/13/2019 | Site Characterization Report Approved | ADEC Contaminated Sites Program received Draft CON/HTRW Remedial Investigation Report, Yakutat Air Base Formerly Used Defense Sites (FUDS) AOCs E1, E3/Hospital Loop, F1, G, K1, and M4 (F10AK0606-12, 13, 14, 15, 16, and 19), Yakutat, Alaska" dated May 28, 2019. ADEC's previously submitted comments have been addressed. ADEC approves the report as final. | Rachael Petraeus |
| 4/14/2020 | Cleanup Complete Determination Issued | The ADEC Contaminated Sites Program received "Declaration of Project Closeout Decision for Yakutat Air Base Formerly Used Defense Site CON/HTRW Project F10AK0606-14 F1 – Khantaak Island Base End Station Yakutat, Alaska "on March 18, 20209. The ADEC Contaminated Sites Program agrees that this project closure is consistent with state investigation and cleanup requirements listed in 18 AAC 75. This is a project closure decision and not a site closure decision. Remaining contaminant sources and contaminant releases to the environment will need to be addressed in future projects at Yakutat Air Base. | Rachael Petraeus |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil | DRO concentrations exceeded ADEC MTGW cleanup level (230 mg/kg) in four soil samples, ranging from 314 to 1,020 mg/kg. No samples exceeded ADEC’s DRO human health cleanup level (8,250 mg/kg) for direct soil contact. |
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) |
No associated sites were found.