Water Quality: South Pasadena, CA
2 water systems • 25,389 people served
Some ConcernsWater Quality Summary
South Pasadena is served by 2 public water systems with a combined service population of 25,389 people, and has 5 EPA Safe Drinking Water Act violations on record. Critically, 2 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. South Pasadena's violation count is 90% below the national average for California. Contaminants associated with violations include Barium.
Contaminants Found
Increases blood pressure and causes cardiovascular effects with long-term exposure.
Common source: Natural rock deposits, oil drilling operations, coal power plant waste
EPA limit: 2 mg/L
Water Systems Serving South Pasadena
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| CITY OF SOUTH PASADENA | CA1910154 | Surface Water | 25,329 | 0 |
| ANTELOPE VALLEY MOBILE ESTATES | CA1500485 | Groundwater | 60 | 5 |
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.