California · population 87,159
Lead pipes in Lake Forest, CA
No lead lines reported
Most of Lake Forest (population 87,159) gets its water from Irvine Ranch Water District, which reported 122,603 service lines and no lead, galvanized or unknown lines.
0% of Irvine Ranch Water District'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 Irvine Ranch Water District (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 Irvine Ranch Water District.
Water systems serving Lake Forest
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Irvine Ranch Water DistrictMain system | 0 | 0 | 0 | 0% |
| El Toro Water DistrictServes 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 Lake Forest
The counts above cover the whole water system. To see whether your line is lead, look up your address on Irvine Ranch Water District'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
- Mission Viejono lead reported
- Laguna Woodsno lead reported
- Laguna Hillsno lead reported
- Rancho Santa Margaritano lead reported
- Irvineno lead reported
- Aliso Viejono lead reported
- Laguna Niguelno lead reported
- Laguna Beachno lead reported
Check another water system
Questions
Does Lake Forest, CA have lead pipes?
Irvine Ranch Water District, which serves Lake Forest, reported no lead, galvanized or unknown service lines.
Who supplies water to Lake Forest?
EPA's service area maps place most of Lake Forest in Irvine Ranch Water District's service area (PWSID CA3010092). El Toro Water District also serves parts of the city or nearby areas.
How do I check whether my Lake Forest home has a lead service line?
Search your address on Irvine Ranch Water District'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 Lake Forest 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 Irvine Ranch Water District whether your street is scheduled and whether it covers the private side.