Water Quality in HERMOSA BEACH, CA (90254)
EPA violation data for public water systems serving ZIP code 90254.
38
Total Violations
6
Health-Based
32
Monitoring / Reporting
38
Resolved
What does this mean?
38 of 38 violations have been resolved. 6 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 32 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 (38 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Aug 29, 2023 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Aug 29, 2023 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Aug 29, 2023 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(3)
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Consumer Confidence Rule
71
2024(4)
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Consumer Confidence Rule
71
How Does This Compare?
HERMOSA BEACH (90254) has 38 recorded violations, including 6 health-based. All violations have been resolved, which is a positive sign for current water quality. 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
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.