Water Quality: Costa Mesa, CA
3 water systems • 110,450 people served
Multiple Health Violations91
Total Violations
55
Health-Based Violations
3
Water Systems
110,450
Population Served
Water Quality Summary
Costa Mesa has 55 health-based violations on record, meaning one or more contaminants were found above EPA-established safe levels. Contaminants involved: Contaminant 1028, Contaminant 1032, Fecal Coliform. In total, 91 violations are on record for 3 water systems serving 110,450 people.
Contaminants Found
Contaminant 1028
Contaminant 1032
Fecal Coliform
Water Systems Serving Costa Mesa
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| MESA WATER DISTRICT | CA3010004 | Surface Water | 110,000 | 2 |
| LAKE WOHLFORD RESORT | CA3700919 | Surface Water | 250 | 3 |
| PINE VALLEY TRAILER PARK | CA3701961 | Groundwater | 200 | 86 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.