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Site Report: Dutch Hbr-Unalaska Vly UST 2679

Site Name: Dutch Hbr-Unalaska Vly UST 2679
Address: Broadway Avenue 1200 feet, NW of intersection 165th, Unalaska, AK 99685
File Number: 2542.38.023
Hazard ID: 2880
Status: Non-Qualifying
Staff: Cascade Galasso-Irish, 9074512181 cascade.galasso-irish@alaska.gov
Latitude: 53.858972
Longitude: -166.500917
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

Diesel fuel contamination from abandoned underground fuel storage tanks, most related to heating fuel. The Building 2674 warehouse foundation was located and cut UST-type piping was observed suggesting that an UST had been removed from this location in the past. 130 cubic yards of impacted soil was removed in 1997. Confirmation sampling indicated DRO up to 1700 mg/kg. Amaknak and Unalaska Islands were used by the military during World War II. The Japanese bombed Dutch Harbor and Fort Mears in 1941. Following the bombing the military dispersed its troops moving back up into Unalaska Valley and Pyramid Valley to minimize the potential for damage if future air raids occurred. The Corps of Engineers had a contractor tear down the abandoned buildings and debris and dispose of them in various landfills during the mid - late 1980s. Underground fuel tanks were abandoned in place. In the mid-1990s the Corps started working on the sites again under the Formerly Used Defense Sites (FUDS) program. Site inspections were done around the former buildings to look for remaining underground fuel tanks and other potential contaminant sources.

Action Information

Action Date Action Description DEC Staff
1/23/2003 Site Added to Database Unalaska Valley expanded into a total of 26 unique sites from one. John Halverson
12/1/2003 GIS Position Updated Montana Debra Caillouet
6/10/2005 Update or Other Action File number issued 2542.38.023. Aggie Blandford
6/25/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Daniel Fremgen
8/18/2021 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 73856 name: UST Cascade Galasso-Irish

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details

Requirements

Description Details

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Missing Location Data

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