LAPWAI CITY OF
PWS ID: ID2350011 · LAPWAI, Idaho 83540
Population Served
325
Total Violations
66
Health-Based Violations
9
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 332
- County
- Nez Perce
- School/Daycare
- No
- MCL Violations
- 9
- Monitoring Violations
- 54
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 9 | 2004 |
| Chlorine | MR | 8 | 2022 |
| Coliform (TCR) | MR | 6 | 2011 |
| Revised Total Coliform Rule | MON | 6 | 2022 |
| Public Notice | Other | 3 | 2011 |
| Cadmium | MR | 3 | 2020 |
| Chromium | MR | 3 | 2020 |
| Mercury | MR | 3 | 2020 |
| Antimony, Total | MR | 3 | 2020 |
| Thallium, Total | MR | 3 | 2020 |
| Beryllium, Total | MR | 3 | 2020 |
| E. COLI | MR | 3 | 2025 |
| Selenium | MR | 3 | 2020 |
| Barium | MR | 3 | 2020 |
| Nickel | MR | 3 | 2020 |
| TTHM | MR | 1 | 2005 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2005 |
| Nitrate | MR | 1 | 1996 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.