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September 13, 2016

Lawrence Lansdale, Environmental Director

Naval Facilities Engineering Command (NAVFAC)

Base Realignment and Closure (BRAC) Program Management Of?ce West
Department of the Navy

33000 Nixie Way, Building 50

San Diego, CA 92147

Dear Mr. Lansdale:

Thank you for the meeting on July 14, 2016, at the Region 9 of?ce of the U.S.
Environmental Protection Agency (EPA) regarding Navy?s cleanup of radioactive material at the
Hunters Point Naval Shipyard (HPNS) in San Francisco, California. As we stated then, integrity
of the data from the Navy?s contractor Tetra Tech ECI, Incorporated, (Tetra Tech) is of the
utmost importance in ensuring the cleanup decisions are made in a manner that protects public
health and the environment and complies with requirements of the Comprehensive
Environmental ReSponse, Compensation, and Liability Act (CERCLA).

We understand that several agencies are currently engaged in ongoing investigations
regarding the nature and extent of Tetra Tech?s misrepresentation of data delivered to the Navy.
I am confirming that we agreed in the July 14, 2016, discussion, that the Navy will not propose
any further transfers of Navy property at HPNS without results of these investigations and/or any
other Navy action necessary to clarify the actual potential public exposure to radioactive material
at and near the HPNS.

If you have any questions or commenls almm llre Hunters Palm Naval Shipwrd cleanup,
please contact either ofthe undersigned if you would like dlscuss matter further.

 

Sincerely,

Angels: Herrera, Assistanl Director Janet aim. Branch Chief

Federal Facilities Branch, Superfund Divigi Department of Toxic Substances Control
U.S Protection Agency Slate ofCahfurnia

Region IX Cleanup Program 7 Berkeley Office
(415) 972-3144 (510) 5403833

Cc: Thomas Machlarella and Derek Roblnson, Navy
Amy Bmwnall, City of San Francisco Department of Public Health
Alec Naugle and Tina Law. Regional Water Quality Control Board