Pentachlorophenol
Pennsylvania American Royersford
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 | 11 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 10 | 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 |
|---|---|---|
| 2020-04-08 | 22016231.00 | ND |
| 2020-04-08 | 22016115.00 | ND |
| 2020-04-15 | 22016316.00 | ND |
| 2020-04-15 | 22016288.00 | ND |
| 2020-04-15 | 22016260.00 | ND |
| 2020-07-07 | 22601605.00 | ND |
| 2020-08-04 | 22792309.00 | ND |
| 2020-08-05 | 22792294.00 | ND |
| 2020-08-11 | 22792238.00 | ND |
| 2020-08-11 | 22792266.00 | ND |
| 2020-08-18 | 22792679.00 | ND |
| 2023-05-01 | 28893377.00 | ND |
| 2023-05-01 | 28893405.00 | ND |
| 2023-05-01 | 28893316.00 | ND |
| 2023-05-11 | 28893323.00 | ND |
| 2023-05-11 | 28893433.00 | ND |
| 2023-07-06 | 29296029.00 | ND |
| 2023-08-10 | 29491106.00 | ND |
| 2023-08-10 | 29491073.00 | ND |
| 2023-08-10 | 29491154.00 | ND |
| 2023-08-10 | 29491067.00 | ND |