Most of San Clemente gets water and sewer from the City's own utility, but Talega is served by Santa Margarita Water District and a small part of north San Clemente by South Coast Water District. Gas comes from SoCalGas, even though SDG&E supplies the electricity. Plumber Oceanside is a free referral service that does no plumbing itself; call the number on this page to be connected with a local plumber in San Clemente.

Plumbing services in San Clemente
South Orange County's coastal edge
San Clemente is the southernmost coastal city in Orange County, about 23 miles from central Oceanside in a straight line, across Camp Pendleton. The 2020 Census counted about 64,300 residents. Roughly 69% of homes are single-family houses, and the city runs from the beach up through hillside neighborhoods to Talega in the inland hills. Camino De Los Mares and Avenida Pico are main local roads.
Three providers for water and sewer
The city's General Plan splits service three ways. The City of San Clemente Water Utility serves most of the city for water and runs its own wastewater collection and treatment. Santa Margarita Water District handles both water and wastewater in Talega, and South Coast Water District does the same for a small portion of north San Clemente. Your water bill confirms which applies. The City's water and sewer office is at 380 Avenida Pico, Building N, and its utilities hotline for water leaks and sewer overflows is 949-366-1553.
City water blends imported Metropolitan Water District supply, a mix of State Water Project and Colorado River water, with water from Irvine Ranch Water District's Baker treatment plant. It is disinfected with chloramine. The City's water quality report lists hardness of about 293 mg/L (17 grains per gallon) for the Baker plant water and 236 mg/L (14 grains per gallon) for the MWD water, with no single figure for the whole system. Either way it is hard water, so mineral scale in water heaters, tankless units, faucet cartridges and shower valves is a routine topic here, and softeners come up often. The City has completed its service line inventory and publishes a non-lead service line statement, and it runs a Cross-Connection Control Management Plan with the State Division of Drinking Water.
Coastal homes and housing age
The median home dates to 1982. Salt air near the ocean wears on hose bibs, exterior valves and outdoor piping, and winter storms can overload drains and push sewer backups. Homes sit mostly on slabs, so a hidden supply leak can show up as a warm spot on the floor or a meter that keeps spinning.
Permits
The Community Development Building Division at 910 Calle Negocio (949-361-6100) issues permits. Walk-in counter hours vary, with a midday appointment window.
Gas safety: call SoCalGas, not SDG&E
The Southern California Gas Company provides natural gas in San Clemente, while SDG&E only supplies electricity. If you smell gas, leave the house first, then call 911 and SoCalGas at 1-800-427-2200 from outside.
Compared with Oceanside, and calling
Oceanside reports gas leaks to SDG&E and has one city water department; San Clemente reports them to SoCalGas and has three possible water providers with notably hard City water. Call the number on this page, mention whether you are in Talega or the older coastal blocks and what you are seeing, and you will be connected with an independent plumber serving San Clemente who works out pricing with you.
Common questions in San Clemente
Who do I call about a gas leak in San Clemente?
Is San Clemente's water hard?
Who provides water in Talega?
Who do I call for a sewer overflow in San Clemente?
Nearby cities and towns
Sources
- Wikipedia: Orange County, California
- City-Stats: San Clemente housing
- City of San Clemente: Overhead utility contacts (PDF)
- City of San Clemente: General Plan, Public Services, Facilities and Utilities Element (PDF)
- City of San Clemente: Water quality report
- City of San Clemente: City facility contacts
- SoCalGas: Emergency information
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