Water Quality: Grass Valley, CA
9 water systems • 59,428 people served
No Health ViolationsWater Quality Summary
Grass Valley is served by 9 public water systems with a combined service population of 59,428 people, and has 3 EPA Safe Drinking Water Act violations on record. None of those violations are health-based — the records reflect missed monitoring or reporting deadlines rather than a contaminant exceeding safe levels. Grass Valley's violation count is 94% below the national average for California.
Water Systems Serving Grass Valley
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| NEVADA ID - E. GEORGE, BANNER MOUNTAIN | CA2910004 | Surface Water | 17,154 | 0 |
| NEVADA ID - LOMA RICA | CA2910006 | Surface Water | 14,072 | 0 |
| NEVADA ID - LAKE WILDWOOD | CA2910023 | Surface Water | 9,108 | 0 |
| NEVADA ID - LAKE OF PINES | CA2910014 | Surface Water | 6,870 | 0 |
| NEVADA ID - NORTH AUBURN | CA3110026 | Surface Water | 6,870 | 0 |
| CITY OF GRASS VALLEY | CA2910001 | Surface Water | 4,947 | 1 |
| SIERRA CITY WATER WORKS, INC. | CA4600056 | Groundwater | 250 | 1 |
| NEVADA ID - SMARTSVILLE | CA5810005 | Surface Water | 122 | 0 |
| CHRISTIAN ENCOUNTER MINISTRIES | CA2900541 | Groundwater | 35 | 1 |
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.