Water Quality: Santa Maria, CA
7 water systems • 110,059 people served
Multiple Health ViolationsWater Quality Summary
Santa Maria is served by 7 public water systems with a combined service population of 110,059 people, and has 109 EPA Safe Drinking Water Act violations on record. Critically, 5 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Santa Maria's violation count is 127% above the national average for California. Contaminants associated with violations include Selenium.
Contaminants Found
Hair loss, nail brittleness, and nervous system damage at elevated concentrations.
Common source: Natural geological deposits, mining discharges, oil refinery waste
EPA limit: 0.05 mg/L (50 ppb)
Water Systems Serving Santa Maria
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| CITY OF SANTA MARIA UTILITIES DEPARTMENT | CA4210011 | Surface Water | 109,477 | 5 |
| FOSTER ROAD MUTUAL WATER COMPANY | CA4200556 | Groundwater | 150 | 89 |
| EAST VALLEY FARMS MUTUAL WATER COMPANY | CA4200800 | Groundwater | 142 | 2 |
| SISQUOC | CA4200560 | Groundwater | 135 | 0 |
| LAS COLINAS ROAD & WATER ASSN | CA4400613 | Groundwater | 70 | 3 |
| AAA KINDNESS CARE HOME | CA4200969 | Groundwater | 45 | 2 |
| RAY WATER COMPANY | CA4200867 | Groundwater | 40 | 8 |
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.