Seismic Gas Shutoff: Palo Alto vs San Jose
How do seismic gas shutoff rules compare between Palo Alto, CA and San Jose, CA?
Palo Alto, CA
Santa Clara County
No data available yet for Palo Alto.
San Jose, CA
Santa Clara County
San Jose follows California Plumbing Code and local building code requirements for seismic gas shutoff valves (SGSOV). Installation is required for new construction, certain permitted renovations, and at point of sale. Valves must be installed downstream of the gas meter and carry manufacturer warranties. San Jose is served by PG&E, which provides gas shutoff guidance for seismic safety.
View full San Jose rules →Key Facts Comparison
| Fact | Palo Alto | San Jose |
|---|---|---|
| Code | - | California Plumbing Code + SJMC |
| Gas Utility | - | PG&E |
| Location | - | Downstream of gas meter |
| Permit | - | Plumbing permit required |
| Nearby Faults | - | Hayward, Calaveras |
Highlighted rows indicate differences between cities.
Palo Alto FAQ
No FAQs available.
San Jose FAQ
Do I need a seismic gas shutoff valve in San Jose?
Yes for new construction and many renovations. It is also recommended for all homes given proximity to the Hayward and Calaveras faults. Installation requires a plumbing permit from the San Jose Building Division.
How much does a seismic gas shutoff valve cost in San Jose?
Typical installation costs $300-$700 including the plumbing permit. Only state-certified valve models may be used, and installation must be downstream of the PG&E gas meter.
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