ADDISON AREA WATER AUTH
PWS ID: PA4560028 · ADDISON, Pennsylvania 15411
Population Served
284
Total Violations
337
Health-Based Violations
27
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 147
- County
- Somerset
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 240
- Treatment Tech Violations
- 24
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 69 | 2024 |
| Consumer Confidence Rule | Other | 35 | 2016 |
| Public Notice | Other | 27 | 2017 |
| Groundwater Rule | TT | 24 | 2017 |
| Groundwater Rule | MR | 16 | 2018 |
| Lead and Copper Rule | MR | 5 | 1998 |
| Chlorine | MRDL | 3 | 2008 |
| Methoxychlor | MR | 3 | 2024 |
| 2,4-D | MR | 3 | 2024 |
| Arsenic | MR | 3 | 2024 |
| Barium | MR | 3 | 2024 |
| Cadmium | MR | 3 | 2024 |
| Chromium | MR | 3 | 2024 |
| Mercury | MR | 3 | 2024 |
| Selenium | MR | 3 | 2024 |
| Nitrate | MR | 3 | 2024 |
| 2,4,5-TP | MR | 3 | 2024 |
| Toxaphene | MR | 3 | 2024 |
| Fluoride | MR | 3 | 2024 |
| Endrin | MR | 3 | 2024 |
| BHC-GAMMA | MR | 3 | 2024 |
| Coliform (TCR) | MR | 2 | 2005 |
| Glyphosate | MR | 2 | 2024 |
| Di(2-ethylhexyl) adipate | MR | 2 | 2024 |
| Picloram | MR | 2 | 2024 |
| Atrazine | MR | 2 | 2024 |
| 2,3,7,8-TCDD | MR | 2 | 2024 |
| Total Polychlorinated Biphenyls (PCB) | MR | 2 | 2024 |
| Chlordane | MR | 2 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.