LAMONTAI IMPROVEMENT WTR DIST
PWS ID: OR4100238 · COTTAGE GROVE, Oregon 97424
Population Served
255
Total Violations
67
Health-Based Violations
20
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 98
- County
- Lane
- School/Daycare
- No
- MCL Violations
- 20
- Monitoring Violations
- 37
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 20 | 2005 |
| Coliform (TCR) | MR | 18 | 2009 |
| COLIPHAGE | MR | 8 | 2012 |
| Nitrate | MR | 4 | 1999 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 2017 |
| Lead and Copper Rule | MR | 2 | 2023 |
| Combined Radium (-226 and -228) | MR | 2 | 2017 |
| Combined Uranium | MR | 1 | 2017 |
| Consumer Confidence Rule | Other | 1 | 2023 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.