Water Quality: San Andreas, CA
8 water systems • 34,416 people served
Multiple Health ViolationsWater Quality Summary
San Andreas is served by 8 public water systems with a combined service population of 34,416 people, and has 30 EPA Safe Drinking Water Act violations on record. Critically, 13 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. San Andreas's violation count is 38% below the national average for California. Contaminants associated with violations include Fecal Coliform, Gross Alpha, Stage 2 DBP, Total Haloacetic Acids (HAA5).
Contaminants Found
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)
Alpha-emitting radioactive particles increase cancer risk, particularly from bone and other internal cancers.
Common source: Natural uranium and radium in geological formations
EPA limit: 15 pCi/L (excluding radon and uranium)
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
Haloacetic acids are associated with increased cancer risk and potential reproductive and developmental effects.
Common source: Reaction of chlorine disinfectants with organic matter in treated water
EPA limit: 0.060 mg/L (60 ppb)
Water Systems Serving San Andreas
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| CCWD - EBBETTS PASS | CA0510016 | Surface Water | 11,545 | 10 |
| CCWD - JENNY LIND | CA0510006 | Surface Water | 9,861 | 1 |
| CALAVERAS PUD | CA0510002 | Surface Water | 6,286 | 1 |
| CCWD - COPPER COVE | CA0510017 | Surface Water | 5,187 | 0 |
| CCWD - WEST POINT | CA0510005 | Surface Water | 1,043 | 10 |
| CCWD - WALLACE | CA0510019 | Groundwater | 255 | 0 |
| RITE OF PASSAGE/SIERRA RIDGE | CA0500091 | Surface Water | 150 | 8 |
| CCWD - SHEEP RANCH | CA0510004 | Surface Water | 89 | 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.