SLIPPERY ROCK MUNI AUTH
PWS ID: PA5100079 · SLIPPERY ROCK, Pennsylvania 16057
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
15,778
Total Violations
173
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,978
- County
- Butler
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 161
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 22 | 2008 |
| Di(2-ethylhexyl) phthalate | MR | 12 | 2017 |
| 2,3,7,8-TCDD | MR | 10 | 2017 |
| Total Haloacetic Acids (HAA5) | MR | 9 | 2020 |
| TTHM | MR | 9 | 2020 |
| Dalapon | MR | 6 | 2023 |
| Endrin | MR | 5 | 2017 |
| BHC-GAMMA | MR | 5 | 2017 |
| Methoxychlor | MR | 5 | 2017 |
| Hexachlorocyclopentadiene | MR | 5 | 2017 |
| Atrazine | MR | 5 | 2017 |
| LASSO | MR | 5 | 2017 |
| Benzo(a)pyrene | MR | 5 | 2017 |
| HEXACHLOROBENZENE | MR | 5 | 2017 |
| Simazine | MR | 5 | 2017 |
| Heptachlor | MR | 5 | 2017 |
| Heptachlor epoxide | MR | 5 | 2017 |
| Di(2-ethylhexyl) adipate | MR | 5 | 2017 |
| Total Polychlorinated Biphenyls (PCB) | MR | 5 | 2017 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2017 |
| Combined Uranium | MR | 4 | 2017 |
| Radium-228 | MR | 4 | 2017 |
| Groundwater Rule | MR | 4 | 2023 |
| Radium-226 | MR | 4 | 2017 |
| Coliform (TCR) | MCL | 4 | 2007 |
| Consumer Confidence Rule | Other | 3 | 2003 |
| Asbestos | MR | 3 | 2018 |
| Revised Total Coliform Rule | RPT | 3 | 2024 |
| Nitrate | MR | 3 | 1995 |
| Coliform (TCR) | MR | 2 | 2005 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| lithium | 9/21/2023 | 19.7000 µg/L | 9 µg/L | Detected |
| PFTrDA | 9/21/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 9/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 9/21/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTA | 9/21/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTA | 9/21/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 9/21/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NMeFOSAA | 9/21/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 9/21/2023 | 29.8000 µg/L | 9 µg/L | Detected |
| NEtFOSAA | 9/21/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeS | 3/27/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFTA | 3/27/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| 11Cl-PF3OUdS | 3/27/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 3/27/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHxA | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 3/27/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 3/27/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 3/27/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTrDA | 3/27/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NFDHA | 3/27/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 3/27/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 3/27/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 4:2 FTS | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 3/27/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 3/27/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 3/27/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBS | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NMeFOSAA | 3/27/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 3/27/2023 | 18.8000 µg/L | 9 µg/L | Detected |
| NEtFOSAA | 3/27/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 9Cl-PF3ONS | 3/27/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFBA | 3/27/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 3/27/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 3/27/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 3/27/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 3/27/2023 | 27.6000 µg/L | 9 µg/L | Detected |
| PFBS | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 3/27/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 3/27/2023 | <0.003 µg/L | 0.003 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.