BIE CHEMAWA INDIAN SCHOOL
PWS ID: 104101132 · WASHINGTON, 10 20240
Population Served
900
Total Violations
56
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Federal
- Connections
- 5
- School/Daycare
- Yes
- MCL Violations
- 0
- Monitoring Violations
- 41
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 17 | 2015 |
| Chlorine | MR | 8 | 2015 |
| Lead and Copper Rule | MR | 7 | 2018 |
| Consumer Confidence Rule | Other | 6 | 2024 |
| Lead and Copper Rule | TT | 5 | 2018 |
| Nitrate | MR | 3 | 2022 |
| Revised Total Coliform Rule | RPT | 2 | 2022 |
| 2,3,7,8-TCDD | MR | 1 | 2008 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2004 |
| Revised Total Coliform Rule | MON | 1 | 2022 |
| TTHM | MR | 1 | 2004 |
| Arsenic | MR | 1 | 2020 |
| Asbestos | MR | 1 | 2008 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.