Lead in Lake Forest, CA Drinking Water
Lead data for Lake Forest, California · 51,980 residents · 1 ZIP code
At elevated levels, Lead is a recognized health concern in drinking water; in Lake Forest, California, it has been detected in recent samples logged through federal compliance reporting.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14
Lead in Lake Forest Tap Water
Lead has been detected in Lake Forest, California drinking water at a maximum level of 800 ppb — 53.33x the EPA action level.
This analysis covers 51,980 residents across 1 ZIP code in Lake Forest.
Lake Forest's overall water quality grade is B (80/100).
Is Lead in Lake Forest Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or nsf 53 carbon block filter certified under NSF 53 / NSF 58 and testing your water independently.
Lead Levels by ZIP Code
| ZIP Code | Lead Level | EPA Limit | Status |
|---|---|---|---|
| 92630 | 800 ppb | 15 ppb (action level) | Exceeds limit |
Average lead level across Lake Forest: 800 ppb
EPA Violations for Lead in Lake Forest
| Date | Violation Type | Status | ZIP Code |
|---|---|---|---|
| 2023-04-01 | Lead (Resolved) | Resolved | 92630 |
| 2022-10-01 | Lead (Known) | Known | 92630 |
| 2022-07-01 | Lead (Known) | Known | 92630 |
Health Effects of Lead
- Brain development delays and reduced IQ in children
- Behavioral problems and learning disabilities
- High blood pressure and kidney damage in adults
- Increased risk of premature birth in pregnant women
Health risk severity: High. Governed by the Lead and Copper Rule Revisions (LCRR/LCRI).
How Lead Gets Into Drinking Water
- Corrosion of lead service lines (pipes connecting water main to home)
- Lead solder in copper plumbing joints (pre-1986 homes)
- Brass fixtures and faucets manufactured before 2014
- Stagnant water that sits in lead-containing pipes overnight
What to Do About Lead in Lake Forest Water
- Install an NSF 53 or NSF 58 certified filter at kitchen sink
- Run cold water for 30 seconds before using for drinking or cooking
- Use cold water only for cooking and preparing formula
- Consider whole-home reverse osmosis if lead service line is present
Look for filters certified under NSF 53 / NSF 58 for lead removal.