California · population 12,105
Lead pipes in San Marino, CA
No lead lines reported
Most of San Marino (population 12,105) gets its water from Cal/Am Water Company - San Marino, which reported 14,608 service lines and no lead, galvanized or unknown lines.
0% of Cal/Am Water Company - San Marino'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 0%
- Non-lead 100%
Latest lead test for Cal/Am Water Company - San Marino (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 Cal/Am Water Company - San Marino.
Water systems serving San Marino
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Cal/Am Water Company - San MarinoMain system | 0 | 0 | 0 | 0% |
| Pasadena Water and 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 San Marino
The counts above cover the whole water system. To see whether your line is lead, look up your address on Cal/Am Water Company - San Marino'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
- San Gabrielno lead reported
- South Pasadenano lead reported
- Alhambrano lead reported
- Temple1,578 unknown
- Rosemeadno lead reported
- Arcadiano lead reported
- Sierra Madreno lead reported
- Monterey Park12,178 unknown
Check another water system
Questions
Does San Marino, CA have lead pipes?
Cal/Am Water Company - San Marino, which serves San Marino, reported no lead, galvanized or unknown service lines.
Who supplies water to San Marino?
EPA's service area maps place most of San Marino in Cal/Am Water Company - San Marino's service area (PWSID CA1910139). Pasadena Water and Power also serves parts of the city or nearby areas.
How do I check whether my San Marino home has a lead service line?
Search your address on Cal/Am Water Company - San Marino'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 San Marino 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 Cal/Am Water Company - San Marino whether your street is scheduled and whether it covers the private side.