SIERRA CITY WATER WORKS, INC.
PWS ID: CA4600056 · GRASS VALLEY, California 95945
Population Served
250
Total Violations
36
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 88
- County
- Sierra
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 12
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Gross Alpha, Excl. Radon and U | MR | 2 | 1981 |
| Revised Total Coliform Rule | MON | 2 | 2021 |
| Coliform (TCR) | MR | 1 | 1992 |
| 2,4,5-TP | MR | 1 | 1981 |
| BHC-GAMMA | MR | 1 | 1981 |
| Endrin | MR | 1 | 1981 |
| Methoxychlor | MR | 1 | 1981 |
| Toxaphene | MR | 1 | 1981 |
| Lead and Copper Rule | MR | 1 | 1993 |
| 2,4-D | MR | 1 | 1981 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.