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Site Report: Barwell Island Base End Station

Site Name: Barwell Island Base End Station
Address: Barwell Island, South of Cape Resurrection, Seward, AK 99664
File Number: 2332.38.037
Hazard ID: 4608
Status: Active
Staff: Jamie McKellar, 9074515175
Latitude: 59.859741
Longitude: -149.277082
Horizontal Datum:NAD83

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.


Approximately 20 deteriorated lead-acid batteries are located within a concrete searchlight bunker at the site. Several batteries are cracked or leaking and have the potential to realease hazardous substances including lead. A partially exposed undergroung storage tank with a large hole in the side is also located at the site. The UST contents appear to be rainwater and vegetation. A communications line or cable, approximatley 500 feet long is also present that may be lead-sheathed. The US Fish and Wildlife service desires the batteries be removed. The island is rugged and access is primarily by helicopter due to the sensitive status of the habitat. Public access is possible via boat.

Action Information

Action Date Action Description DEC Staff
1/1/1986 Report or Workplan Review - Other Inventory Report for Barwell Island dated January 1986. Includes an inventory of debris. Sammi Castle
6/26/2007 Report or Workplan Review - Other Preliminary Assessment dated June 26, 2007. Evidence of past military use includes the remaining empty concrete structures. A pile of lead-acid batteries (approximately 20) is present in one searchlight bunker. At least one battery is upside down and one has a crack in the casing. A UST is located at the site. UST partially exposed and vent pipe disconnected. No groundwater migration pathway present. Any releases could travel downgradient to the ocean. Soil layer on Barwell Island is very thin, given the rock outcropping and exposed cliffs. Sammi Castle
3/17/2008 Site Added to Database Site added to the database. Mitzi Read
4/10/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Debra Caillouet
7/21/2011 Report or Workplan Review - Other Final Removal Action Report dated May 2011 and received by ADEC on this date. Removal action activities included the in-place closure of a 600-gallon UST, securing the trap door on Building C-1, and removal of a lead-sheathed communication cable and batteries at the Barwell Island Base End Station. Sammi Castle
4/14/2015 Report or Workplan Review - Other Final CON/HTRW Removal Action Underground Storage Tank Removal Work Plan dated September 2014 and received by ADEC on this date. The objective of this work is to safely remove, transport, and dispose of a600-gallon UST formerly containing gasoline, and determine clean closure by collecting confirmation samples from the UST excavation. Sammi Castle

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details


Description Details

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Missing Location Data

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