Pentachlorophenol
Warrington Twp Water&sew Dept
NOTE: Warrington Twp Water&sew Dept purchases water from North Wales Water Authority which is required to test for pentachlorophenol. Sample information shown below was taken by North Wales Water Authority.
Pentachlorophenol is a carcinogenic chemical used as a wood preservative. It harms developing fetuses, and causes immune suppression and hormone disruption.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 7 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.3 ppb
The EWG Health Guideline of 0.3 ppb for pentachlorophenol was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
EPA Maximum Contaminant
Level (MCL): 1 ppb
The legal limit for pentachlorophenol, established in 1991, was based on analytical detection limits at the time that the standard was set.
ppb = parts per billion
All test results
NOTE: Warrington Twp Water&sew Dept purchases water from North Wales Water Authority which is required to test for pentachlorophenol. Sample information shown below was taken by North Wales Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2018-04-03 | 8042063-01 | ND |
| 2018-07-10 | 8073259-01 | ND |
| 2019-04-02 | 9042086-01 | ND |
| 2019-07-09 | 9073421-02 | ND |
| 2020-04-01 | 22025498.00 | ND |
| 2020-04-20 | 22026103.00 | ND |
| 2020-04-20 | 22026133.00 | ND |
| 2020-04-20 | 22026163.00 | ND |
| 2020-04-20 | 22026193.00 | ND |
| 2020-04-27 | 22217384.00 | ND |
| 2020-04-27 | 22217354.00 | ND |
| 2020-04-27 | 22217324.00 | ND |
| 2020-04-27 | 22217294.00 | ND |
| 2020-04-27 | 22217419.00 | ND |
| 2020-07-06 | 22609721.00 | ND |
| 2020-07-27 | 22801101.00 | ND |
| 2020-07-27 | 22801222.00 | ND |
| 2020-07-27 | 22801179.00 | ND |
| 2020-07-27 | 22801162.00 | ND |
| 2020-07-27 | 22801131.00 | ND |
| 2020-08-31 | 23001439.00 | ND |
| 2020-08-31 | 23001467.00 | ND |
| 2020-08-31 | 23001495.00 | ND |
| 2020-08-31 | 23001523.00 | ND |
| 2021-04-06 | 24249943.00 | ND |
| 2021-07-06 | 24831103.00 | ND |
| 2022-04-05 | 26466015.00 | ND |
| 2022-07-05 | 27039499.00 | ND |
| 2023-04-03 | 28705034.00 | ND |
| 2023-04-03 | 28705032.00 | ND |
| 2023-04-03 | 28705036.00 | ND |
| 2023-04-03 | 28705033.00 | ND |
| 2023-04-03 | 28705035.00 | ND |
| 2023-04-04 | 28705031.00 | ND |
| 2023-06-27 | 29110719.00 | ND |
| 2023-07-10 | 29304423.00 | ND |
| 2023-07-10 | 29304426.00 | ND |
| 2023-07-10 | 29304425.00 | ND |
| 2023-07-10 | 29304422.00 | ND |
| 2023-07-11 | 29304427.00 | ND |
| 2023-07-11 | 29304428.00 | ND |
| 2023-07-11 | 29304424.00 | ND |