Water Quality: Greenville, CA
4 water systems • 980 people served
Some ConcernsWater Quality Summary
Greenville is served by 4 public water systems with a combined service population of 980 people, and has 5 EPA Safe Drinking Water Act violations on record. Critically, 3 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Greenville's violation count is 90% below the national average for California. Contaminants associated with violations include Chlorine, Fecal Coliform, Stage 2 DBP.
Contaminants Found
Eye and nose irritation at high levels; long-term exposure above the MCL may cause liver and kidney damage.
Common source: Water treatment disinfectant added to kill harmful microorganisms
EPA limit: 4.0 mg/L (MRDL — Maximum Residual Disinfectant Level)
Indicates direct fecal contamination; associated with diarrhea, cramps, nausea, and potential severe illness.
Common source: Human and animal fecal waste
EPA limit: Zero tolerance (any positive triggers violations)
Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.
Common source: Chlorine disinfection reacting with natural organic matter in source water
EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L
Water Systems Serving Greenville
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| IVCSD-GREENVILLE | CA3210001 | Groundwater | 630 | 2 |
| IVCSD CRESCENT MILLS | CA3200510 | Groundwater | 258 | 1 |
| VALIVU ESTATES MHP | CA3200189 | Groundwater | 54 | 2 |
| GREENHAVEN HOA | CA3200195 | Groundwater | 38 | 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.