Pentachlorophenol
Pennsylvania American Water Company Warren
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 | ND | 1 | 0 | ND |
| 2020 | ND | 8 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 8 | 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 |
|---|---|---|
| 2019-08-27 | 46272501 | ND |
| 2020-04-06 | 22151843.00 | ND |
| 2020-04-15 | 22151871.00 | ND |
| 2020-05-06 | 22347224.00 | ND |
| 2020-05-13 | 22347296.00 | ND |
| 2020-07-08 | 22736957.00 | ND |
| 2020-07-15 | 22736885.00 | ND |
| 2020-08-13 | 22934669.00 | ND |
| 2020-08-19 | 22934697.00 | ND |
| 2023-04-03 | 28837771.00 | ND |
| 2023-04-11 | 28837766.00 | ND |
| 2023-06-06 | 29240299.00 | ND |
| 2023-06-13 | 29240301.00 | ND |
| 2023-08-15 | 29636949.00 | ND |
| 2023-08-16 | 29636977.00 | ND |
| 2023-09-05 | 29827567.00 | ND |
| 2023-09-12 | 29827569.00 | ND |