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PUC outlines climate‑vulnerability work, flags sea‑level risk to 29 Bay‑side sewer structures

San Francisco Public Utilities Commission · November 25, 2009
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Summary

Staff described ongoing vulnerability assessments, downscaling of climate models, pilots for water supply and urban drainage, and identified Bay‑side sewer structures that will need protection from rising tides; staff estimated an initial adaptation package for Bay‑side discharge structures at roughly $18–20 million.

David Behar, the PUC climate lead, briefed the commission on a growing program of vulnerability assessments that stitch together global climate models, watershed hydrologic modeling and system‑operations models to estimate how climate change could affect water supply, storm intensity and coastal infrastructure.

Behar summarized national and utility‑scale work — including collaboration through the Water Utility Climate Alliance (WUCA) and a recent Aspen‑hosted workshop — aimed at producing climate services that are useful for utility planning. He explained…

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