Water Quality in LAKE FOREST, CA (92618)
EPA violation data for public water systems serving ZIP code 92618.
70
Total Violations
9
Health-Based
61
Monitoring / Reporting
67
Resolved
What does this mean?
67 of 70 violations have been resolved. 9 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 61 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (70 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Arsenic | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | May 11, 2025 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Public Notice | Monitoring | N/A | N/A | Jan 18, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jan 18, 2025 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(10)
Arsenic
03
Arsenic
02
Public Notice
75
Arsenic
02
Arsenic
02
Arsenic
03
Arsenic
03
Arsenic
02
Public Notice
75
Public Notice
75
2024(14)
Arsenic
02
Arsenic
02
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
Arsenic
02
Arsenic
02
Arsenic
02
Lead and Copper Rule
66
Consumer Confidence Rule
72
Consumer Confidence Rule
72
Arsenic
03
Arsenic
03
Arsenic
03
Arsenic
03
How Does This Compare?
LAKE FOREST (92618) has 70 recorded violations, including 9 health-based. 3 remain unresolved. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.