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Residents press planning commission on Crystal Springs tunnel EIR, citing noise, health and viable alternatives
Summary
At a Planning Commission hearing, San Mateo residents, homeowner associations and regional water buyers raised health, noise, vibration and alternative‑route concerns about the San Francisco Public Utilities Commission’s draft EIR for the Crystal Springs Bypass Tunnel (Case No. 2003.0655E). The PUC defended the tunnel as necessary to protect seismic reliability; the comment period closes Oct. 9, 2007.
The San Francisco Planning Commission held a hearing to receive public comments on the draft environmental impact report for the San Francisco Public Utilities Commission’s new Crystal Springs Bypass Tunnel Project (Case No. 2003.0655E), with technical staff presenting the PUC’s justification and members of the San Mateo community criticizing the EIR’s noise, health and vibration analyses.
PUC project manager Tassal Mabridis told the commission the project is intended to reduce the risk of pipeline failure during a major seismic event and to maintain post‑quake service. “We are obligated to deliver about a 120,000,000 gallons to the Peninsula and San Francisco within 24 hours of a major seismic event,” Mabridis said, describing a bored tunnel roughly 4,200 feet long and shafts 60–200 feet deep as the option that best meets the project objectives. The PUC’s presentation described alternatives studied in the DEIR and explained the agency’s selection of a deep bored tunnel to avoid ground‑surface movement and landslide vulnerability to the…
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