Pentachlorophenol
Collegeville Trappe Joint Public Works Department
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 20 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 20 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2020-05-04 | 22213279.00 | ND |
| 2020-05-04 | 22213249.00 | ND |
| 2020-05-04 | 22213309.00 | ND |
| 2020-05-18 | 22213546.00 | ND |
| 2020-05-18 | 22213520.00 | ND |
| 2020-05-18 | 22213576.00 | ND |
| 2020-05-18 | 22213490.00 | ND |
| 2020-06-08 | 22414101.00 | ND |
| 2020-06-08 | 22414161.00 | ND |
| 2020-06-08 | 22414131.00 | ND |
| 2020-08-03 | 22797505.00 | ND |
| 2020-08-03 | 22797280.00 | ND |
| 2020-08-03 | 22797370.00 | ND |
| 2020-08-03 | 22797310.00 | ND |
| 2020-08-03 | 22797340.00 | ND |
| 2020-08-17 | 22797885.00 | ND |
| 2020-08-17 | 22797856.00 | ND |
| 2020-08-17 | 22797827.00 | ND |
| 2020-08-17 | 22797798.00 | ND |
| 2020-08-17 | 22797768.00 | ND |
| 2023-04-17 | 28700894.00 | ND |
| 2023-04-17 | 28700891.00 | ND |
| 2023-04-17 | 28700896.00 | ND |
| 2023-04-17 | 28700895.00 | ND |
| 2023-04-17 | 28700893.00 | ND |
| 2023-04-17 | 28700892.00 | ND |
| 2023-05-01 | 28898980.00 | ND |
| 2023-05-01 | 28898979.00 | ND |
| 2023-05-01 | 28898978.00 | ND |
| 2023-05-01 | 28898981.00 | ND |
| 2023-07-24 | 29495871.00 | ND |
| 2023-07-24 | 29495873.00 | ND |
| 2023-07-24 | 29495872.00 | ND |
| 2023-07-24 | 29495870.00 | ND |
| 2023-07-24 | 29495869.00 | ND |
| 2023-08-07 | 29495876.00 | ND |
| 2023-08-07 | 29495877.00 | ND |
| 2023-08-07 | 29495875.00 | ND |
| 2023-08-07 | 29495874.00 | ND |
| 2023-08-21 | 29496179.00 | ND |