Former Naval Shipyard Hunters Point

Radiological Retesting

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Radiological Retesting at HPNS

As a result of the Navy’s identification of sampling issues by Tetra Tech EC (TtEC) in 2012, the Navy conducted a thorough data evaluation of radiological samples collected by TtEC. After reviewing more than 900,000 analytical results, the Navy found questionable laboratory data and practices, along with evidence of potential data falsification. The Navy concluded that the data collected by this contractor was not reliable and began plans for retesting.

Overview of the Navy’s Plan

The Navy will retest at sites where TtEC had previously collected radiological samples. Cleanup objectives for each parcel were developed early in the Superfund process to prevent exposure to possible radiological contamination in existing soil and buildings. These objectives were documented in the Record of Decision (ROD) for each parcel. HPNS RODs and other reports are available for review at established document review locations. Additional information on the Navy’s cleanup at HPNS may be found on the Meeting Materials, Progress Reports, and Documents pages of this website.

Radiological retesting will begin with Parcel G. This new data, including results from soil and buildings that remain in the areas in question, will verify the property is safe for transfer.

Independent Oversight and Review

To ensure the integrity of data collection, data analysis, and removal of any potential remaining contamination, the Navy has hired contractors to monitor work to ensure proper sampling methods are followed, and to verify legitimacy of the results. Independent radiological experts will review sampling plans, results, and reports. The new data collected by the Navy will be analyzed at approved off-site laboratories to determine if it meets cleanup objectives defined in each parcel’s ROD.  In addition, federal and state regulatory agencies including the United States Environmental Protection Agency (USEPA), California Department of Toxic Substances Control (DTSC), and the California Department of Public Health will have the opportunity to conduct independent sampling to confirm the Navy’s results.

 

Parcels Included in Radiological
Retesting at HPNS

TtEC conducted radiological sampling at eight of the parcels at HPNS: Parcels B, C, E, D-2, G, and the three Utility Corridors
(UC) UC-1, UC-2, and UC-3. An overview of each parcel included
in the Navy’s radiological retesting is provided below. Retesting
will begin in with Parcel G, as it is the highest priority to the City
of San Francisco. 

Note* Click here for Parcel Updates


 


HPNS Parcel Map
(click on the map for a larger view)  

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Parcel B Parcel C  |   Parcel D-2  |  Parcel E  |   Parcel G   | Parcel UC-1 | Parcel UC-2  | Parcel UC-3

 

 ___________________________________ PARCEL B  _________________________________

Parcels B-1, B-2, and Installation Restoration (IR) Site 07/18 (a subsite within Parcel B) were used to provide support and services for the repair and maintenance of submarines and ships. Parcels B-1 and B-2 have been further sub-divided to assist with property transfer activities: subsites include IR-10 (Parcel B-1) and IR-26 (Parcel B-2).  

Parcel B is included in the radiological retesting efforts by the Navy.  Please check back for updates on retesting work plans, results, and next steps.
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 ____________________________________ PARCEL C  __________________________________

Portions of Parcel C were used for ship repair and radiological research, as well as a power plant and machine, metalworking, and paint shops.

Parcel C is included in the radiological retesting efforts by the Navy.  Please check back for updates on retesting work plans, results, and next steps. 
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 ____________________________________ PARCEL D-2  _________________________________

Parcel D-2 contained a radiological equipment area and underground storage tanks. Excavations and removal of underground storage tanks have been completed, and Parcel D-2 was transferred to the Office of Community Investment and Infrastructure (OCII), Successor Agency to the San Francisco Redevelopment Agency, in 2015.

As TtEC originally conducted radiological sampling at Parcel D-2, it is included in the current radiological retesting efforts by the Navy.  The City of San Francisco will not begin development at Parcel D-2 until the site has been verified safe. Please check back for updates on retesting work plans, results, and next steps.
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____________________________________ PARCEL E  _________________________________

Parcel E was used for industrial operations and radiological research.

Parcel E is included in the radiological retesting efforts by the Navy.  Please check back for updates on retesting work plans, results, and next steps.
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____________________________________ PARCEL G  _________________________________

Parcel G was used for ship repair and maintenance, as well as radiological research.

The Navy will gather new radiological data at Parcel G, beginning in 2018. Areas evaluated in Parcel G include former sanitary sewer and storm drain trenches, buildings identified as radiologically impacted according to historical use, and soil areas identified as having possible radiological contamination. The Parcel G Work Plan, including maps of sampling areas, is available in the Reference Library on this website. 
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______________________________ PARCELS UC-1,UC-2 & UC-3 __________________________

Three utility corridors historically served the former Shipyard with storm drain and sanitary sewer lines.  Removal of storm drain and sanitary sewer lines at Parcels UC-1 and UC-2 have been completed and these two parcels were transferred to the Office of Community Investment and Infrastructure (OCII), Successor Agency to the San Francisco Redevelopment Agency, in 2015.

As TtEC originally conducted radiological sampling at all three utility corridor sites, UC-1, UC-2, and UC-3 are included in the current radiological retesting efforts by the Navy.  The City of San Francisco will not begin development at UC-1 and UC-2, and will not approve the transfer of UC-3 until the sites have been verified safe. Please check back for updates on retesting work plans, results, and next steps.
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