The Navy has and continues to take a comprehensive approach to cleanup at the former Hunters Point Naval Shipyard (HPNS) to ensure the health and safety of the community now and into the future. The Navy’s responsibility is to complete work in a way that ensures long-term public health and safety before any parcel is transferred to the City of San Francisco.
 
As part of the Navy’s effort to provide long-term protectiveness, the Navy’s cleanup actions have factored in current and future sea level rise at HPNS – as it shared with the San Francisco Board of Supervisors on Sept 15, 2022 in a written statement.
 
The Navy has measured groundwater elevation changes due to tidal influences, seasonal variations and sea-level rise under the Navy’s basewide groundwater monitoring program at HPNS for more than two decades.
Measures and monitoring requirements are in place at the Shipyard that demonstrate this fact. For example, the Remedial Action underway at Parcel E-2 includes an engineered shoreline designed to address 100-year sea level rise projections.
 
Components of our environmental cleanup intended to counter sea level rise at HPNS include: (a) below and above-ground walls that protect groundwater and prevent soil erosion, (b) increasing the shoreline elevation, (c) excavation and removal of contaminated soils, (d) groundwater treatment, and (e) long-term monitoring/maintenance to ensure that treatment technologies remain effective.
 
The Navy is required by law to evaluate the protectiveness of cleanup remedies in place at HPNS every five years, indefinitely – even after it transfers Shipyard property to the City of San Francisco.
 
The next Five Year Review for HPNS will be completed in 2023, and will include an evaluation of the potential effects of sea level rise and associated groundwater elevation changes on the remedies currently in place. The Navy will share the 2023 Five Year Review with the Hunters Point/Bayview community through presentations, newsletters and the HPNS website, www.bracpmo.navy.mil/hpns.  The Navy shared a statement on sea level rise with the San Francisco Board of Supervisors on 15 September 2022.