California · population 997,368
Lead pipes in San Jose, CA
No lead lines reported
Most of San Jose (population 997,368) gets its water from San Jose Water, which reported 236,341 service lines and no lead, galvanized or unknown lines.
0% of San Jose Water'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 San Jose Water (Jan 2023–Dec 2025): 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 San Jose Water.
Water systems serving San Jose
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| San Jose WaterMain system | 0 | 0 | 0 | 0% |
| City of San Jose - Evg/Edv/CoyAlso serves parts of the city | 0 | 0 | 0 | 0% |
| City of San Jose - Nsj/AlvisoAlso serves parts of the city | 0 | 0 | 0 | 0% |
| CWSC King CityAlso serves parts of the city | 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 Jose
The counts above cover the whole water system. To see whether your line is lead, look up your address on San Jose Water'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
- Campbellno lead reported
- Los Gatosno lead reported
- Santa Clarano lead reported
- Monte Serenono lead reported
- Milpitasno lead reported
- Saratogano lead reported
- Cupertinono lead reported
- Sunnyvaleno lead reported
Check another water system
Questions
Does San Jose, CA have lead pipes?
San Jose Water, which serves San Jose, reported no lead, galvanized or unknown service lines.
Who supplies water to San Jose?
EPA's service area maps place most of San Jose in San Jose Water's service area (PWSID CA4310011). City of San Jose - Evg/Edv/Coy, City of San Jose - Nsj/Alviso, CWSC King City also serve parts of the city or nearby areas.
How do I check whether my San Jose home has a lead service line?
Search your address on San Jose Water'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 Jose 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 San Jose Water whether your street is scheduled and whether it covers the private side.