NESPELEM AGENCY
PWS ID: 105300007 · NESPELEM, 10 99155
Population Served
445
Total Violations
305
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 100
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 281
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MR | 32 | 2024 |
| Consumer Confidence Rule | Other | 17 | 2025 |
| Nitrate | MR | 8 | 2023 |
| Coliform (TCR) | MR | 8 | 2006 |
| Combined Radium (-226 and -228) | MR | 6 | 2020 |
| Gross Alpha, Excl. Radon and U | MR | 5 | 2014 |
| Chlordane | MR | 4 | 2017 |
| Chlorine | MR | 4 | 2023 |
| ETHYLENE DIBROMIDE | MR | 4 | 2017 |
| Endothall | MR | 4 | 2017 |
| Diquat | MR | 4 | 2017 |
| Endrin | MR | 4 | 2017 |
| BHC-GAMMA | MR | 4 | 2017 |
| Toxaphene | MR | 4 | 2017 |
| Glyphosate | MR | 4 | 2017 |
| Di(2-ethylhexyl) phthalate | MR | 4 | 2017 |
| Hexachlorocyclopentadiene | MR | 4 | 2017 |
| Atrazine | MR | 4 | 2017 |
| LASSO | MR | 4 | 2017 |
| 2,3,7,8-TCDD | MR | 4 | 2017 |
| Heptachlor | MR | 4 | 2017 |
| HEXACHLOROBENZENE | MR | 4 | 2017 |
| Benzo(a)pyrene | MR | 4 | 2017 |
| Methoxychlor | MR | 4 | 2017 |
| Di(2-ethylhexyl) adipate | MR | 4 | 2017 |
| Total Polychlorinated Biphenyls (PCB) | MR | 4 | 2017 |
| Arsenic | MCL | 4 | 2016 |
| Combined Uranium | MR | 4 | 2014 |
| Heptachlor epoxide | MR | 4 | 2017 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 4 | 2017 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.