EPA ID# WA7170027265
EPA Region 10
Kitsap County

1st Congressional District

Other Names: Site A, Bangor Ordnance Disposal (USN Sub Base), US Navy Submarine Base- Bangor
Last Update: September, 2007

Hide details for Site DescriptionSite Description

The Bangor Ordnance Disposal site is a 12-acre site located on the Bangor Naval Submarine Base in Silverdale, Washington. The Burn Area, which at 6 acres is the largest individual area of the site, was used to detonate and incinerate various ordnance materials. Waste material resulting from the Burn Area operations was deposited at the two adjacent Debris Areas. Surface water and shallow ground water were contaminated as a result of these activities. In 1983, the Navy moved to control the migration of potential chemical waste from the burn site by diverting stormwater runoff away from this area. Cattail Lake covers approximately four acres and is located about 500 feet from the site. Approximately 3,900 people reside within three miles of the base and depend on ground water for drinking water. An agricultural and residential area surrounds the facility. In 1990, another portion of this facility, the Bangor Naval Submarine Base site, was added to the National Priorities List (NPL) as a separate site.

Site Responsibility: This site is being addressed through federal actions. The Navy is the lead agency for the cleanup at Bangor. The State of Washington Department of Ecology is the lead regulatory agency.

NPL Listing HistoryDates
Proposed Date:10/15/1984
Removed Date:
Withdrawal Date:
Final Date:07/22/1987
Deleted Date:

Hide details for Threats and ContaminantsThreats and Contaminants

Media Affected: Surface Water, Soil & Sludges, Groundwater
Ground water, soil, leachate, and surface water were contaminated with trinitrotoluene (TNT) and cyclonite (RDX). The soil was also contaminated with lead. Accidental ingestion of or direct contact with contaminated soil or surface water could expose people on or near the site to pollutants. Studies show that ground water does not threaten the local community due to the slow migration and direction of the contaminated plume. The base is located one half mile from Hood Canal, a sensitive marine environment.

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PHONE NUMBER:503-326-3689

Chung Ki Yee (state)
Information pertaining to this site is housed at the following location(s):
Engineering Field Activity Northwest (Administrative Record)
Naval Facilities Engineering Command
19917 7th Avenue NE
Poulsbo, Washington 98370-7570
(360) 396-1858

Kitsap Regional Library
Central Library
1301 Sylvan Way
Bremerton, WA 98310

Bangor Naval Submarine Base Library
Building 2500
Silverdale, WA 98315

Kitsap County Public Utility District
1431 Finn Hill Road
Poulsbo, WA 98370