ST MARIES CITY OF
PWS ID: ID1050024 · ST MARIES, Idaho 83861
Population Served
4,173
Total Violations
28
Health-Based Violations
8
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,669
- County
- Benewah
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 19
- Treatment Tech Violations
- 6
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 6 | 2005 |
| Nitrate | MR | 3 | 2002 |
| Coliform (TCR) | MR | 3 | 2006 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2005 |
| TTHM | MR | 2 | 2005 |
| Coliform (TCR) | MCL | 2 | 2001 |
| Dalapon | MR | 1 | 1996 |
| 2,4-D | MR | 1 | 1996 |
| 2,4,5-TP | MR | 1 | 1996 |
| Arsenic | MR | 1 | 2001 |
| Chlorine | MR | 1 | 2006 |
| Dinoseb | MR | 1 | 1996 |
| Picloram | MR | 1 | 1996 |
| Surface Water Treatment Rule | MR | 1 | 2004 |
| 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.