TIETON WATER DEPT CITY OF
PWS ID: WA5388300 · Yakima, Washington 98908
Population Served
1,475
Total Violations
66
Health-Based Violations
3
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 530
- County
- Yakima
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 59
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 4 | 2018 |
| Coliform (TCR) | MCL | 3 | 1998 |
| Arsenic | MR | 2 | 2017 |
| Pentachlorophenol | MR | 2 | 2008 |
| Nitrate | MR | 1 | 2009 |
| Dalapon | MR | 1 | 2008 |
| Picloram | MR | 1 | 2008 |
| Dinoseb | MR | 1 | 2008 |
| 2,4,5-TP | MR | 1 | 2008 |
| Endrin | MR | 1 | 2008 |
| BHC-GAMMA | MR | 1 | 2008 |
| Toxaphene | MR | 1 | 2008 |
| Simazine | MR | 1 | 2008 |
| Atrazine | MR | 1 | 2008 |
| Heptachlor | MR | 1 | 2008 |
| Heptachlor epoxide | MR | 1 | 2008 |
| HEXACHLOROBENZENE | MR | 1 | 2008 |
| Chlordane | MR | 1 | 2008 |
| cis-1,2-Dichloroethylene | MR | 1 | 2008 |
| DICHLOROMETHANE | MR | 1 | 2008 |
| o-Dichlorobenzene | MR | 1 | 2008 |
| p-Dichlorobenzene | MR | 1 | 2008 |
| Vinyl chloride | MR | 1 | 2008 |
| 1,1-Dichloroethylene | MR | 1 | 2008 |
| 1,2-Dichloropropane | MR | 1 | 2008 |
| Trichloroethylene | MR | 1 | 2008 |
| Tetrachloroethylene | MR | 1 | 2008 |
| CHLOROBENZENE | MR | 1 | 2008 |
| Benzene | MR | 1 | 2008 |
| Styrene | MR | 1 | 2008 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.