USFS SILVER LAKE RS
PWS ID: OR4101090 · CHILOQUIN, Oregon 97624
Population Served
30
Total Violations
74
Health-Based Violations
9
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Federal
- Connections
- 15
- County
- Lake
- School/Daycare
- No
- MCL Violations
- 9
- Monitoring Violations
- 58
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 25 | 2011 |
| Coliform (TCR) | MCL | 8 | 2011 |
| Public Notice | Other | 4 | 2011 |
| E. COLI | MR | 3 | 2011 |
| Lead and Copper Rule | MR | 2 | 2013 |
| Revised Total Coliform Rule | MON | 2 | 2022 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1996 |
| Arsenic | MR | 1 | 2005 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2005 |
| DICHLOROMETHANE | MR | 1 | 2005 |
| o-Dichlorobenzene | MR | 1 | 2005 |
| 1,1-Dichloroethylene | MR | 1 | 2005 |
| trans-1,2-Dichloroethylene | MR | 1 | 2005 |
| 1,2-Dichloroethane | MR | 1 | 2005 |
| 1,1,1-Trichloroethane | MR | 1 | 2005 |
| Carbon tetrachloride | MR | 1 | 2005 |
| CHLOROBENZENE | MR | 1 | 2005 |
| Ethylbenzene | MR | 1 | 2005 |
| Nitrate | MR | 1 | 1999 |
| Revised Total Coliform Rule | MCL | 1 | 2025 |
| Toluene | MR | 1 | 2005 |
| Xylenes, Total | MR | 1 | 2005 |
| Vinyl chloride | MR | 1 | 2005 |
| 1,2-Dichloropropane | MR | 1 | 2005 |
| 1,1,2-Trichloroethane | MR | 1 | 2005 |
| Trichloroethylene | MR | 1 | 2005 |
| Tetrachloroethylene | MR | 1 | 2005 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
| Styrene | MR | 1 | 2005 |
| p-Dichlorobenzene | MR | 1 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.