DARK HOLLOW WATER ASSOCIATION
PWS ID: OR4105117 · MEDFORD, Oregon 97501
Population Served
45
Total Violations
50
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 13
- County
- Jackson
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 38
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 15 | 2011 |
| Revised Total Coliform Rule | MCL | 6 | 2022 |
| Combined Uranium | MR | 4 | 2017 |
| Combined Radium (-226 and -228) | MR | 4 | 2017 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2017 |
| Nitrate | MR | 3 | 2009 |
| Revised Total Coliform Rule | MON | 3 | 2017 |
| Coliform (TCR) | MCL | 2 | 2009 |
| E. COLI | MR | 2 | 2011 |
| Public Notice | Other | 2 | 2011 |
| Lead and Copper Rule | MR | 1 | 2017 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2019 |
| TTHM | MR | 1 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.