Water Quality: Quincy, CA
2 water systems • 3,928 people served
Multiple Health ViolationsWater Quality Summary
Quincy is served by 2 public water systems with a combined service population of 3,928 people, and has 7 EPA Safe Drinking Water Act violations on record. Critically, 6 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Quincy's violation count is 85% below the national average for California. Contaminants associated with violations include E. coli.
Contaminants Found
Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.
Common source: Fecal contamination from humans or animals entering the water supply
EPA limit: Zero (no E. coli permitted in drinking water)
Water Systems Serving Quincy
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| AMERICAN VALLEY CSD | CA3210004 | Groundwater | 3,778 | 7 |
| WALKER RANCH CSD | CA3205001 | Groundwater | 150 | 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.