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Pacific Southwest, Region 9: Superfund

Serving Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations

Naval Computer And Telecommunications Area Master Station Eastern Pacific Oahu

EPA #: HI0170090054

State: Hawaii(HI)

County: Honolulu

City: Pearl Harbor

Congressional District: 02

Other Names:

Bulletin Board

On 10/13/17, this website will no longer be updated. Site information will be migrated to the new web page at: http://www.epa.gov/superfund/navalcomputer .
EPA appreciates your patience through this transition. If you have questions, please contact EPA staff listed below.


Description and History

NPL Listing History

NPL Status: Final

Proposed Date: 01/18/94

Final Date: 05/31/94

Deleted Date:

NCTAMS EASTPAC consists of operating facilities located throughout the island of Oahu. These facilities include Wahiawa, Lualualei, Opana, Kokekole Pass and various satellite communications locations.

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Contaminants and Risks

Contaminated Media
  • Surface Water
  • Soil and Sludges
  • Environmentally Sensitive Area

The Navy's Installation Restoration Program (IRP) is addressing the sites at NCTAMS EASTPAC. The sites are primarily land disposal areas that are no longer in use and PCB transformer sites. Soil contamination depends on the site but generally the chemicals of concern are PCBs, volatile organics, semi-volatile organics and metals.

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Who is Involved

The site is being addressed through Federal actions. The Navy is the lead agency conducting the investigations and cleanup, with oversight from EPA and the Hawaii Department of Health.

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Investigation and Cleanup Activities

Initial Actions

The Navy is using their removal authority to address some of the sites. Removal actions conducted to date are PCB transformer sites. PCB contaminated soil was excavated and transported to NAS Barbers Point for thermal desorption treatment. The clean soil from the thermal desorption treatment was used to backfill the excavated sites. A suspected dump site near Building 293 was investigated and found to not pose an unacceptable risk. A 'No-Action' Record of Decision was signed by the Navy, EPA and HDOH in September of 2006.

Site Studies

The Navy is currently investigating several dumpsites.

The Navy, EPA and HDOH signed Records of Decisions in February 2010, specifying land use controls for the Old Incinerator Site and the Old Wahiawa Landfill. Both of these sites have buried contaminants, but the surface conditions pose no risk to human health.

The Navy completed the RI for the Building 6 Gulch and found limited hot-spots of lead and PCBs. They completed a removal action in 2008 and submitted a draft No Action ROD in 2011.


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Cleanup Results to Date

Preliminary investigations have indicated that no immediate threats currently exist at NCTAMS EASTPAC site.

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Potentially Responsible Parties

Potentially responsible parties (PRPs) refers to companies that are potentially responsible for generating, transporting, or disposing of the hazardous waste found at the site.

The United States Navy is the responsible party and is conducting the investigation and cleanups with oversight from EPA and Hawaii Department of Health.

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Documents and Reports

Show details for Fact SheetsFact Sheets
Show details for Legal DocumentsLegal Documents
Show details for Records of DecisionRecords of Decision
Show details for Technical DocumentsTechnical Documents

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Community Involvement

Public Meetings:

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Public Information Repositories

The public information repositories for the site are at the following locations:

A number of documents related to NCTAMS EASTPAC are available at the Wahiawa Public Library and the Waianae Public Library.

The most complete collection of documents is the official EPA site file, maintained at the following location:

Superfund Records Center

Mail Stop SFD-7C

95 Hawthorne Street, Room 403

San Francisco, CA 94105

(415) 820-4700

Enter main lobby of 75 Hawthorne street, go to 4th floor of South Wing Annex.

Additional Links

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EPA Site Manager
Christopher Lichens
US EPA Region 9
Mail Code SFD
75 Hawthorne Street
San Francisco, CA 94105
EPA Community Involvement Coordinator
David Yogi
US EPA Region 9
Mail Code SFD-6-3
75 Hawthorne Street
San Francisco, CA 94105
EPA Public Information Center
State Contact
Maria Reyes
P.O. Box 3378
Honolulu, HI 96801
PRP Contact
Bob Kaito
808-471-1171 x231
NAVFAC Engineering Command, Hawaii
400 Marshall Road
Pearl Harbor, HI 96860
Community Contact
Other Contacts
After Hours (Emergency Response)
(800) 424-8802

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