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PWS ID: PA4410153 · WILLIAMSPORT, Pennsylvania 17701
Population Served
250
Total Violations
146
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 86
- County
- Lycoming
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 93
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 39 | 2013 |
| Consumer Confidence Rule | Other | 38 | 2022 |
| Coliform (TCR) | MR | 12 | 2006 |
| Gross Alpha, Excl. Radon and U | MR | 9 | 2016 |
| Radium-228 | MR | 6 | 2016 |
| Combined Uranium | MR | 6 | 2016 |
| Groundwater Rule | MR | 6 | 2022 |
| Radium-226 | MR | 6 | 2016 |
| Public Notice | Other | 5 | 2020 |
| Lead and Copper Rule | MR | 5 | 2019 |
| Revised Total Coliform Rule | RPT | 4 | 2020 |
| Groundwater Rule | TT | 4 | 2020 |
| Revised Total Coliform Rule | Other | 2 | 2016 |
| TTHM | MR | 2 | 2018 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2018 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.