DUQUESNE WATER DEPT
PWS ID: PA5020012 · DUQUESNE, Pennsylvania 15110
Population Served
5,565
Total Violations
136
Health-Based Violations
31
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 2,110
- County
- Allegheny
- School/Daycare
- No
- MCL Violations
- 31
- Monitoring Violations
- 71
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 23 | 2024 |
| Surface Water Treatment Rule | MR | 16 | 2023 |
| Chlorine | MR | 12 | 2023 |
| Public Notice | Other | 11 | 2022 |
| Consumer Confidence Rule | Other | 10 | 2022 |
| Coliform (TCR) | MCL | 8 | 2012 |
| Revised Total Coliform Rule | RPT | 8 | 2019 |
| Revised Total Coliform Rule | MON | 7 | 2023 |
| TTHM | MR | 4 | 2016 |
| Asbestos | MR | 4 | 2022 |
| Lead and Copper Rule | MR | 4 | 2018 |
| Coliform (TCR) | MR | 3 | 2015 |
| 2,4-D | MR | 2 | 1985 |
| Endrin | MR | 2 | 1985 |
| Methoxychlor | MR | 2 | 1985 |
| 2,4,5-TP | MR | 2 | 1985 |
| Toxaphene | MR | 2 | 1985 |
| BHC-GAMMA | MR | 2 | 1985 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1980 |
| Mercury | MR | 1 | 1982 |
| Selenium | MR | 1 | 1982 |
| Cadmium | MR | 1 | 1982 |
| Chromium | MR | 1 | 1982 |
| Arsenic | MR | 1 | 1982 |
| Barium | MR | 1 | 1982 |
| Fluoride | MR | 1 | 1982 |
| Nitrate | MR | 1 | 1982 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTA | 8/21/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| lithium | 8/21/2023 | <9 µg/L | 9 µg/L | Not Detected |
| NMeFOSAA | 8/21/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTrDA | 8/21/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 8/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHxA | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTrDA | 5/22/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFOA | 5/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NMeFOSAA | 5/22/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTA | 5/22/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| lithium | 5/22/2023 | <9 µg/L | 9 µg/L | Not Detected |
| NEtFOSAA | 5/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 5/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 5/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFMPA | 5/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeS | 5/22/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 5/22/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 5/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 5/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 5/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 5/22/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 5/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 5/22/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFDoA | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 5/22/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMBA | 5/22/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 3/12/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 6:2 FTS | 3/12/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBS | 3/12/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 3/12/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 3/12/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOS | 3/12/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 3/12/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 3/12/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 3/12/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 3/12/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 3/12/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 9Cl-PF3ONS | 3/12/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 3/12/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 3/12/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBA | 3/12/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
PFAS data from EPA UCMR5 monitoring program (2023-2025).
This data is provided for informational purposes only.