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Site Report: King Salmon AS GWZ 2 Bldg 160 CAC

Site Name: King Salmon AS GWZ 2 Bldg 160 CAC
Address: Bldg. 160 Combat Alert Cell, King Salmon, AK 99613
File Number: 2569.38.022.03
Hazard ID: 23248
Status: Cleanup Complete
Staff: No Longer Assigned, 9074655229 dec.icunit@alaska.gov
Latitude: 58.688330
Longitude: -156.661400
Horizontal Datum:

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 site is associated with UST TU/US-C522 and is included in the CS database as two individual sites, an active leaking underground storage tank (LUST) site (Haz ID: 23248 “King Salmon AS – Bldg #160 Combat Alert Cell”) and an active contaminated sites program (CSP) site (Haz ID: 1581 “King Salmon Combat Alert Cell”). The tank was closed in 2016 and no additional contamination was found. There is remaining TCE/PCE contamination at the site, but this is not the result of a release at the tank and is being managed under the Zone 2 groundwater monitoring program. Also includes sites: UST MOGAS Stn. Bldg. 76-200, Bioremediation Cells, UST Maint. Shop Bldg. 154, UST Jet Fuel Pumphouse Bldgs. 157 & 159, UST Guard Shack Bldg. 306, UST Well Pump Fac. Bldg. 307, MWR Marina Bldg. 400, and POL Pipeline.

Action Information

Action Date Action Description DEC Staff
5/21/1992 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 78036 ADD; Diesel contaminant. Original spill # listed as 92-2-5-149-2 Dennis Lundine DEC WDO 5/28/92. Former Staff
5/21/1992 Site Added to Database Former Staff
2/1/2007 Update or Other Action File number issued 2569.38.022.03. See also same file number in the CS database. Aggie Blandford
5/15/2008 Exposure Tracking Model Ranking Intitial Ranking Complete for Source Area: 78036 (Autogenerated Action)
12/22/2011 Leaking Underground Storage Tank Cleanup Initiated - Petroleum Adminstrative action addition for grant reporting purposes. Evonne Reese
3/20/2012 Document, Report, or Work plan Review - other Contaminated Sites Staff recieved the Draft Work Plan for Preliminary Assessments/Site Inspections for Cape Newenham, Cape Lisburne, Indian Mountain, Tatalina LRRS, and King Salmon Air Station. Jonathan Schick
5/14/2012 Document, Report, or Work plan Review - other Contaminated Sites Staff recieved the Final versions of the Work Plan for Preliminary Assessments/Site Inspections for Cape Newenham, Cape Lisburne, Indian Mountain, Tatalina LRRS, and King Salmon Air Station. Jonathan Schick
1/25/2013 Document, Report, or Work plan Review - other Submit comments to US Air Force on the Draft PA/SI report for King Salmon Air Station. Report documents the results of the investigation of UST 104. Soil results did not indicate hydrocarbon contamination beneath the tank. However TCE was detected in the ground water indicating a larger TCE plume beneath the site. Guy Warren
6/12/2013 CERCLA SI Submit Approval letter for Final PA/SI report for nine compliance sites. Report includes investigation of UST 104. Air force planning further investigation to evaluate extent of TCE detected in groundwater. Guy Warren
10/17/2016 Document, Report, or Work plan Review - other ADEC provided comments on the "Closure Report for Nine Compliance Restoration Program Sites (TU/US-C519, TU/US-C517, TU/US-C518, TU/US-C520, TU/US-C522, TU/US-C523, TU/US-C524, TU/US-C589, TU/US-C592) at the King Salmon Divert". Site TU/US-C522 is included in the CS database as two individual sites, an active leaking underground storage tank (LUST) site (Haz ID: 23248 “King Salmon AS – Bldg #160 Combat Alert Cell”) and an active contaminated sites program (CSP) site (Haz ID: 1581 “King Salmon Combat Alert Cell”). Based on the closure of the tank and the investigation documenting no additional soil contamination above cleanup levels associated with the tank, ADEC plans to close these two contaminated sites (Cleanup Complete) after this report is finalized. There is remaining TCE/PCE contamination at the site, but this is not the result of a release at the tank and is being managed under the Zone 2 groundwater monitoring program. Holly Weiss-Racine
8/22/2017 Cleanup Complete Determination Issued ADEC received and approved final Closure Report for Nine Compliance Restoration program Sites TU/US-C519, TU/US-C517, TU/US-C518,TU/USC520, TU/US-C522, TU/US-C523,TU/US-C524,TU/US-C589 & TU/US-C592 on 3/22/2017. It recommended Cleanup Complete for TU/US-C517 UST 300-2, TU/US-C518 UST 614, TU/USC520 UST 638, TU/US-C522 UST 104, TU/US-C524 UST 152,TU/US-C589 UST 52, & TU/US-C592 UST 560a. It also recommended Cleanup Complete w ICs for TU/US-C523. ADEC concurred that site TU/US-C519 UST 300-1 needs additional work. Linda (Qi) Liu
4/29/2024 Document, Report, or Work plan Review - other DEC reviewed the Uniform Federal Policy Quality Assurance Project Plan PFAS Supplemental Remedial Investigations for Groundwater Zones 2 And 5 And PFAS Phase I Remedial Investigation For Groundwater Zone 1 Draft, dated April 2024. The work plan describes the proposed remedial investigation efforts to delineate the extent of per and polyfluoroalkyl substances (PFAS) and trichloroethylene (TCE) related contamination in groundwater zones 2, and 5 located in King Salmon, Alaska. PFAS, TCE, and TCE daughter products will be sampled in groundwater, soil, sediment, and surface water. The results from the investigation will be used to assess if further remedial action is necessary to protect human health and the environment. Ginna Quesada

Contaminant Information

Name Level Description Media Comments
DRO < Method 2 Most Stringent Soil Low detection of DRO, RRO & GRO were found but none of the surface soil, subsurface soil or groundwater samples exceed ADEC Method Two most stringent cleanup levels. The conclusion is that no soil or groundwater contamination exists at the Site above ADEC cleanup levels in relation to diesel formerly stored within UST 104. There is remaining PCE/TCE problem but they are not considered related to UST 104 and will continued to be addressed in GWZ2 Long Term Management.

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.

Missing Location Data

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
TDD: 800-770-8973
Physical Location: 410 Willoughby