Pittsburg requires plumbing permits under the California Plumbing Code adopted through Municipal Code Title 15 for water heater replacement, repipes, sewer laterals, gas lines, and fixture additions. Like-for-like faucet and fixture swaps are generally exempt. Permits require licensed C-36 plumbing contractors or owner-builders, and inspections include rough-in pressure tests and finals.
Pittsburg enforces the California Plumbing Code via Municipal Code Title 15. Permits are required for water heater installation or replacement, sewer lateral repair or replacement, gas piping, water service re-piping, backflow preventers, and the addition of any new plumbing fixture. Minor repairs like faucet replacement, fixture trim, and clearing stoppages are typically exempt. The Central Contra Costa Sanitary District (or Delta Diablo for portions of Pittsburg) regulates sewer lateral connections and may require a Private Sewer Lateral compliance certificate upon property sale or major remodel. Water heater permits require seismic strapping (upper and lower third), T&P relief valve with full-size drain to exterior, and combustion air per CPC Chapter 5. Gas lines require pressure testing at 10 psi for 15 minutes minimum. Sewer lateral replacements must use approved SDR-35 or equivalent piping with cleanouts at property line and building connection. Work requires a licensed C-36 plumbing contractor, unless the homeowner qualifies as an owner-builder on their primary residence. Inspections are scheduled through the Building Division online portal. Unpermitted work is subject to investigation fees and possible removal.
Contact your local code enforcement office for specific penalty information.
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