Water Quality: Ramona, CA
2 water systems • 37,149 people served
Multiple Health ViolationsWater Quality Summary
Ramona is served by 2 public water systems with a combined service population of 37,149 people, and has 96 EPA Safe Drinking Water Act violations on record. Critically, 31 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Ramona's violation count is 100% above the national average for California. Contaminants associated with violations include Contaminant 4109, Haloacetic Acids, Selenium.
Contaminants Found
Linked to increased cancer risk and potential reproductive and developmental effects with long-term exposure.
Common source: Reaction of chlorine disinfectants with organic matter in treated water
EPA limit: 0.060 mg/L (60 ppb)
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 Ramona
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| RAMONA MUNICIPAL WD | CA3710019 | Surface Water | 37,047 | 0 |
| RANCHO SANTA TERESA MW CO. | CA3700918 | Groundwater | 102 | 96 |
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.