CASCADE VALLEY WATER DISTRICT
PWS ID: WA5311500 · MOSES LAKE, Washington 98837
Population Served
379
Total Violations
477
Health-Based Violations
1
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 184
- County
- Grant
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 470
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Cadmium | MR | 190 | 2009 |
| Nitrate | MR | 19 | 2022 |
| Coliform (TCR) | MR | 12 | 2013 |
| Pentachlorophenol | MR | 6 | 2005 |
| cis-1,2-Dichloroethylene | MR | 5 | 2005 |
| Vinyl chloride | MR | 5 | 2005 |
| 1,1-Dichloroethylene | MR | 5 | 2005 |
| trans-1,2-Dichloroethylene | MR | 5 | 2005 |
| 1,2-Dichloroethane | MR | 5 | 2005 |
| 1,1,1-Trichloroethane | MR | 5 | 2005 |
| Carbon tetrachloride | MR | 5 | 2005 |
| 1,2-Dichloropropane | MR | 5 | 2005 |
| Trichloroethylene | MR | 5 | 2005 |
| 1,1,2-Trichloroethane | MR | 5 | 2005 |
| Tetrachloroethylene | MR | 5 | 2005 |
| CHLOROBENZENE | MR | 5 | 2005 |
| Toluene | MR | 5 | 2005 |
| Ethylbenzene | MR | 5 | 2005 |
| BHC-GAMMA | MR | 5 | 2005 |
| Toxaphene | MR | 5 | 2005 |
| Atrazine | MR | 5 | 2005 |
| LASSO | MR | 5 | 2005 |
| Heptachlor | MR | 5 | 2005 |
| HEXACHLOROBENZENE | MR | 5 | 2005 |
| Benzo(a)pyrene | MR | 5 | 2005 |
| Picloram | MR | 5 | 2005 |
| Dinoseb | MR | 5 | 2005 |
| OXAMYL | MR | 5 | 2005 |
| Aldicarb sulfoxide | MR | 5 | 2005 |
| Carbofuran | MR | 5 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.