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Site Report: USCG Japonski Island Base

Site Name: USCG Japonski Island Base
Address: 611 Airport Road, Japonski Island, Sitka, AK 99835
File Number: 1525.38.018
Hazard ID: 3274
Status: Cleanup Complete
Staff: Sophia Bracio, 9074511682 sophia.bracio@alaska.gov
Latitude: 57.056056
Longitude: -135.367389
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

Historic diesel oil spill discovered in 7/99. Preliminary sampling isolates 550 gallon AST with secondary containment at the site from contaminated soil. Estimated <100 cubic yards of contaminated soil, shallow bedrock, no GW seen in test pits and boring. Also contamination present in a small wetland area near the heliport. Separate source area from above. VCP candidate. Low Priority ranking by AHRM based on preliminary sampling and no surface contamination.

Action Information

Action Date Action Description DEC Staff
4/27/2000 Site Added to Database DRO (AST, historic spill). Former Staff
5/8/2000 Site Ranked Using the AHRM No surface contamination, ranked on preliminary samples, no delineation. VCP candidate. Bruce Wanstall
6/19/2002 Update or Other Action Conducted a site visit with Mark Ridgway from the Coast Guard. Bill Janes
2/26/2004 GIS Position Updated Updated lat/long data using GPS readings from Bill Janes 2/13/04 field trip. Cliff Walden
6/5/2006 Update or Other Action Groundwater use determination approved for the entire USCG Japonski Island facility. Groundwater cleanup levels of 10X Table C were approved. Soil cleanup levels need to be calculated and proposed. Anne Marie Palmieri
6/5/2006 Cleanup Level(s) Approved Soil cleanup levels of DRO 2300 mg/kg and RRO 8300 mg/kg approved. Groundwater cleanup levels of DRO 15 mg/L were approved. Anne Marie Palmieri
9/27/2006 Cleanup Plan Approved Cleanup plan for removal of soil approved this date. Anne Marie Palmieri
9/24/2007 Exposure Tracking Model Ranking ETM ranking Anne Marie Palmieri
12/10/2007 Update or Other Action In 2007, two test pits were excavated and the highest concentration of DRO found was 2200 mg/kg. No soil was excavated. Anne Marie Palmieri
12/17/2009 Cleanup Complete Determination Issued Cleanup complete determination issued this date in accordance with new closure policy. The USCG remains responsible for the appropriate future management of the remaining soil which contains concentrations of DRO below the ACLs but above the default method 2 level of 230 mg/kg. Anne Marie Palmieri
12/17/2009 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74249 EM/BT Building. Anne Marie Palmieri
5/15/2024 Meeting or Teleconference Held Teleconference held with USCG and DEC to discuss active USCG contaminated sites and Memorandum of Agreement (MOA) renewal. Sophia Bracio

Contaminant Information

Name Level Description Media Comments
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil DRO concentrations below ACL of 2300 mg/kg

Control Type

Type Details
No ICs Required

Requirements

Description Details
Advance approval required to transport soil or groundwater off-site.

No associated sites were found.

Missing Location Data

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