California · population 40,064
Lead pipes in Rancho Palos Verdes, CA
23,500 lines still unidentified
Most of Rancho Palos Verdes (population 40,064) gets its water from California Water Service Co. - Palos Ver. It reported no confirmed lead service lines, but 23,500 of 24,145 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of California Water Service Co. - Palos Ver's service lines are lead or galvanized requiring replacement, lower than the California average (0.1%) and lower than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 0%
- Unknown 97%
- Non-lead 2.7%
Latest lead test for California Water Service Co. - Palos Ver (Jan 2024–Dec 2026): not detected at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for California Water Service Co. - Palos Ver.
Water systems serving Rancho Palos Verdes
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| California Water Service Co. - Palos VerMain system | 0 | 0 | 23,500 | 0% |
| Los Angeles-City, Dept. of Water & PowerServes nearby areas | 0 | 0 | 0 | 0% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in Rancho Palos Verdes
The counts above cover the whole water system. To see whether your line is lead, look up your address on California Water Service Co. - Palos Ver's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- Rolling Hills23,500 unknown
- Rolling Hills Estates23,500 unknown
- Palos Verdes Estates23,500 unknown
- Lomitano lead reported
- Torrance31,869 unknown
- Redondo Beach24,355 unknown
- Hermosa Beach24,355 unknown
- Carson31,869 unknown
Check another water system
Questions
Does Rancho Palos Verdes, CA have lead pipes?
None are confirmed, but California Water Service Co. - Palos Ver still lists 23,500 service lines as unknown material.
Who supplies water to Rancho Palos Verdes?
EPA's service area maps place most of Rancho Palos Verdes in California Water Service Co. - Palos Ver's service area (PWSID CA1910104). Los Angeles-City, Dept. of Water & Power also serves parts of the city or nearby areas.
How do I check whether my Rancho Palos Verdes home has a lead service line?
Search your address on California Water Service Co. - Palos Ver's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in Rancho Palos Verdes be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask California Water Service Co. - Palos Ver whether your street is scheduled and whether it covers the private side.