This fact sheet summarizes the November 2024 air monitoring result for plutonium-239 (Pu-239) collected during radiological retesting fieldwork at Hunters Point Naval Shipyard (HPNS) Parcel C. Click here to view fact sheet. 

This fact sheet explains how the Navy proactively manages dust and monitors air quality during environmental cleanup activities at Hunters Point Naval Shipyard (HPNS). It highlights how the Navy controls dust to protect workers, neighbors, and the environment, and how the Navy monitors air to check...

On November 17, 2025, the Navy provided an update to the Hunters Point Shipyard Citizens Advisory Committee Environmental & Reuse (E&R) Subcommittee on the Pu-239 air monitoring outlier and the steps taken to evaluate the result and improve reporting processes. Posters on the topic were also

This Fact Sheet is provided to clarify the information regarding Plutonium-239 (Pu-239) that was detected in an air sample at the former Hunters Point Naval Shipyard (HPNS).In March 2025, it was reported to the Navy that one ambient air sample collected in November 2024, at a downwind air monitoring

The Navy continues to make environmental cleanup progress at Hunters Point Naval Shipyard (HPNS) Parcel C. This fact sheet provides an update on upcoming cleanup activities scheduled to begin in Summer 2025. The focus will be on Remedial Units (RU)-C2, RU-C5-1, and RU-C5-3, where soil and

The United States (U.S.) Department of the Navy (DoN) is conducting the 2nd/3rd Five Year Review (FYR) for Former Naval Station Treasure Island (NSTI) in San Francisco, California, as required by the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).Download The

The United States (U.S.) Department of the Navy (DoN) is currently completing a Per- and Polyfluoroalkyl Substances (PFAS) Pilot Study at Installation Restoration (IR) Site 6. The purpose of the Pilot Study (PS) is to evaluate the effectiveness of a permeable reactive barrier (PRB) to

The HPNS Building Demolition Industry Day event on April 24, 2024, was announced to representatives from 235 businesses. In 2025, the Navy will award a task order work to demolish 6 buildings and a concrete slab at Parcel G. An important part of the contracting effort includes requirements for local

The purpose of this fact sheet is to provide the community with an overview of the planned cleanup effort at Parcel F at Hunters Point Naval Shipyard (HPNS). It outlines the key contaminants, planned remedies, and the schedule for cleanup activities. Parcel F covers approximately 443 acres of

Navy Decision to Address Radiological ObjectsAfter thorough analysis of the data and review of work plans, the Navy has determined that it will excavate 100% of the former onsite sanitary sewer and storm drain trenches in Parcel B and Parcel C. This decision underscores the Navy's commitment to