Orange County · Los Angeles–Long Beach–Anaheim metro
Plumbing help in Santa Ana, CA
Very Hard WaterOlder Pipes
Santa Ana pumps most of its water from the Orange County groundwater basin, and it's hard. With about 70% of homes built before 1980 and most residents renting, aging pipe, scale and shared plumbing lead local calls.
- Median home built
- 1970
- Built before 1980
- 69%
- Owner-occupied
- 43%
- Water hardness
- Very hard
- ≈ 15 grains/gal
- Winter
- Hard freezes are rare
- Plumbing code
- UPC
What Santa Ana homeowners call plumbers about
- Water Heater Repair
Hard water builds scale and sediment in tank heaters.
- Repiping
Older homes and apartments have galvanized lines.
- Drain Cleaning
Shared drains in older apartment buildings clog.
Santa Ana's very hard water and your plumbing
About 77% of Santa Ana's water comes from local groundwater through 21 city wells, with the rest imported from the Metropolitan Water District; hardness is about 250 ppm (roughly 15 grains per gallon). [1]
Emergency plumbing in Santa Ana
Call (833) 878-1592Shut off your main water supply if it's safe to do so. The emergencies below are listed most likely first for Santa Ana homes, based on local conditions.
Santa Ana's 1970s housing and its pipes
The median home in Santa Ana was built in 1970, and 69% of homes predate 1980. Homes from that era were typically built with copper supply, early plastic (ABS or PVC) drains, some cast iron.
- Galvanized steel supply (1900–1960)
- Copper supply (1950–2000)
- Polybutylene (some homes) (1978–1996)
- PEX / CPVC (1995–today)
Permits and code in Santa Ana
Plumbing here follows the 2025 California Plumbing Code, based on the 2024 Uniform Plumbing Code, effective January 1, 2026; plumbing contractors hold a CSLB C-36 license. [2]
Plumbing services for Santa Ana homes
Santa Ana plumbing questions
How hard is Santa Ana water?
Hard: about 250 ppm, roughly 15 grains per gallon.
Where does Santa Ana's water come from?
About 77% from local groundwater (21 city wells), plus imported MWD water.
How do I check a Santa Ana plumber?
Use the CSLB's Check a License search and look for the C-36 classification.
Who fixes plumbing in a Santa Ana rental?
Landlords are generally responsible for plumbing repairs in rentals under California law. Report problems in writing.
Which plumbing code applies in Santa Ana?
The 2025 California Plumbing Code, based on the 2024 UPC.
Sources (3)
- U.S. Census Bureau, ACS 2024 1-year (B25035) · checked 2026-10-01
- City of Santa Ana, Water Quality FAQs · checked 2026-10-01
- IAPMO, 2025 California Plumbing Code · checked 2026-10-01