GUILFORD WATER AUTH
PWS ID: PA7280038 · CHAMBERSBURG, Pennsylvania 17201
Population Served
28,135
Total Violations
669
Health-Based Violations
51
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 11,668
- County
- Franklin
- School/Daycare
- No
- MCL Violations
- 7
- Monitoring Violations
- 404
- Treatment Tech Violations
- 44
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Public Notice | Other | 201 | 2022 |
| Groundwater Rule | TT | 41 | 2017 |
| Radium-226 | MR | 25 | 2018 |
| Radium-228 | MR | 25 | 2018 |
| Chlorine | MR | 23 | 2015 |
| Total Haloacetic Acids (HAA5) | MR | 16 | 2022 |
| 1,1-Dichloroethylene | MR | 14 | 2020 |
| 1,2-Dichloroethane | MR | 14 | 2020 |
| 1,1,1-Trichloroethane | MR | 14 | 2020 |
| Carbon tetrachloride | MR | 14 | 2020 |
| Trichloroethylene | MR | 14 | 2020 |
| p-Dichlorobenzene | MR | 14 | 2020 |
| Benzene | MR | 14 | 2020 |
| Nitrate | MR | 11 | 2012 |
| Groundwater Rule | MR | 11 | 2025 |
| Coliform (TCR) | MR | 10 | 2012 |
| DICHLOROMETHANE | MR | 10 | 2020 |
| 1,2-Dichloropropane | MR | 10 | 2020 |
| 1,1,2-Trichloroethane | MR | 10 | 2020 |
| CHLOROBENZENE | MR | 10 | 2020 |
| Toluene | MR | 10 | 2020 |
| Styrene | MR | 10 | 2020 |
| Xylenes, Total | MR | 10 | 2020 |
| o-Dichlorobenzene | MR | 10 | 2020 |
| Ethylbenzene | MR | 10 | 2020 |
| Tetrachloroethylene | MR | 10 | 2020 |
| 1,2,4-Trichlorobenzene | MR | 10 | 2020 |
| trans-1,2-Dichloroethylene | MR | 10 | 2020 |
| cis-1,2-Dichloroethylene | MR | 10 | 2020 |
| Gross Alpha, Excl. Radon and U | MR | 9 | 2018 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 169 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| 4:2 FTS | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 6/13/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFBA | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 6/13/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 6/13/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 6/13/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHxS | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 6/13/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHpA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 6/13/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 6/13/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 6/13/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| ADONA | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 4/20/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 4/20/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 4/20/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 4/20/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFBS | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 4/20/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFPeA | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 4/20/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 4/20/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 4/20/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 4/20/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 4/20/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFMBA | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 4/20/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFPeS | 4/20/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 4/20/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 11Cl-PF3OUdS | 4/20/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFEESA | 4/20/2023 | <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.