Water Quality: Pismo Beach, CA
2 water systems • 8,636 people served
Multiple Health ViolationsWater Quality Summary
Pismo Beach is served by 2 public water systems with a combined service population of 8,636 people, and has 13 EPA Safe Drinking Water Act violations on record. Critically, 10 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Pismo Beach's violation count is 73% below the national average for California. Contaminants associated with violations include Total Haloacetic Acids (HAA5).
Contaminants Found
Haloacetic acids are associated with increased cancer risk and potential reproductive and developmental effects.
Common source: Reaction of chlorine disinfectants with organic matter in treated water
EPA limit: 0.060 mg/L (60 ppb)
Water Systems Serving Pismo Beach
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| PISMO BEACH WATER DEPARTMENT | CA4010008 | Surface Water | 8,036 | 13 |
| PRESERVE AT MILLERTON LAKE WATER SYSTEM | CA2010018 | Groundwater | 600 | 0 |
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.
Other Cities in California
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.