TRI-CITY WATER DISTRICT #45
PWS ID: WA5389400 · Kennewick, Washington 99338
Population Served
300
Total Violations
357
Health-Based Violations
1
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 108
- County
- Benton
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 355
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| 1,2,4-Trichlorobenzene | MR | 16 | 2008 |
| p-Dichlorobenzene | MR | 16 | 2008 |
| Vinyl chloride | MR | 16 | 2008 |
| 1,2-Dichloroethane | MR | 16 | 2008 |
| 1,1,1-Trichloroethane | MR | 16 | 2008 |
| 1,2-Dichloropropane | MR | 16 | 2008 |
| Trichloroethylene | MR | 16 | 2008 |
| Benzene | MR | 16 | 2008 |
| Toluene | MR | 16 | 2008 |
| Ethylbenzene | MR | 16 | 2008 |
| cis-1,2-Dichloroethylene | MR | 16 | 2008 |
| DICHLOROMETHANE | MR | 16 | 2008 |
| 1,1-Dichloroethylene | MR | 16 | 2008 |
| trans-1,2-Dichloroethylene | MR | 16 | 2008 |
| 1,1,2-Trichloroethane | MR | 16 | 2008 |
| Tetrachloroethylene | MR | 16 | 2008 |
| Styrene | MR | 16 | 2008 |
| o-Dichlorobenzene | MR | 16 | 2008 |
| Carbon tetrachloride | MR | 16 | 2008 |
| CHLOROBENZENE | MR | 16 | 2008 |
| Lead and Copper Rule | MR | 10 | 2006 |
| Coliform (TCR) | MR | 6 | 1992 |
| ETHYLENE DIBROMIDE | MR | 5 | 2005 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 5 | 2005 |
| Barium | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Selenium | MR | 1 | 1979 |
| Nitrate | MR | 1 | 1979 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
| Consumer Confidence Rule | Other | 1 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.