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Port presents Pier 70 feasibility study and recommends cap plus institutional controls as preferred remedy
Summary
Port staff and the San Francisco Bay Regional Water Board presented the Pier 70 feasibility study and remedial action plan (FS/RAP), finding pervasive soil contamination and recommending institutional controls combined with durable surface covers as the preferred, cost‑effective remedy; draft FS/RAP published March 15 with a 30‑day comment period and a community meeting March 21.
Carol Bach, Environmental and Regulatory Affairs Manager in the Port’s Planning and Development Division, presented the Port’s feasibility study and remedial action plan (FS/RAP) for Pier 70 to the Port Commission on March 14, summarizing five years of investigation and the data that underpin the recommended remedy.
Bach said the Port’s site investigation collected more than 180 soil samples from borings and test pits, over 50 groundwater samples (from temporary locations and 10 permanent monitoring wells), and 33 soil gas samples. The investigation, she said, found that soil at Pier 70 contains metals, petroleum hydrocarbons and polycyclic aromatic hydrocarbons (PAHs) at concentrations exceeding cleanup levels for the three anticipated future uses evaluated (commercial, recreational and residential). Groundwater, she said, generally contained contaminants at concentrations that did not pose a potential human‑health risk,…
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