TRIBAL COMPLEX
PWS ID: 105300025 · TOPPENISH, 10 98948
Population Served
907
Total Violations
221
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 50
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 196
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 30 | 2008 |
| Consumer Confidence Rule | Other | 11 | 2019 |
| Chlorine | MR | 9 | 2025 |
| Revised Total Coliform Rule | RPT | 6 | 2025 |
| Nitrate | MR | 5 | 2016 |
| TTHM | MR | 4 | 2018 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2018 |
| Groundwater Rule | TT | 4 | 2022 |
| Atrazine | MR | 3 | 2014 |
| Arsenic | MR | 3 | 2014 |
| Antimony, Total | MR | 3 | 2014 |
| Lead and Copper Rule | MR | 3 | 2021 |
| Benzene | MR | 3 | 2014 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 2014 |
| Combined Radium (-226 and -228) | MR | 3 | 2014 |
| Xylenes, Total | MR | 2 | 2014 |
| o-Dichlorobenzene | MR | 2 | 2014 |
| Vinyl chloride | MR | 2 | 2014 |
| 1,1-Dichloroethylene | MR | 2 | 2014 |
| trans-1,2-Dichloroethylene | MR | 2 | 2014 |
| 1,2-Dichloroethane | MR | 2 | 2014 |
| 1,1,1-Trichloroethane | MR | 2 | 2014 |
| Carbon tetrachloride | MR | 2 | 2014 |
| 1,2-Dichloropropane | MR | 2 | 2014 |
| Trichloroethylene | MR | 2 | 2014 |
| Tetrachloroethylene | MR | 2 | 2014 |
| CHLOROBENZENE | MR | 2 | 2014 |
| Styrene | MR | 2 | 2014 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 2 | 2014 |
| Simazine | MR | 2 | 2014 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.