Pentachlorophenol
Mt. Joy Boro 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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 9 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2019-08-20 | 9083654-01 | ND |
| 2019-11-07 | 9110611-01 | ND |
| 2020-02-20 | 21981363.00 | ND |
| 2020-04-09 | 22170969.00 | ND |
| 2020-04-09 | 22171157.00 | ND |
| 2020-05-19 | 22368389.00 | ND |
| 2020-06-10 | 22565250.00 | ND |
| 2020-07-21 | 22955060.00 | ND |
| 2020-08-11 | 22955154.00 | ND |
| 2020-09-22 | 23142319.00 | ND |
| 2020-09-22 | 23142349.00 | ND |
| 2023-05-09 | 29059170.00 | ND |
| 2023-05-15 | 29059220.00 | ND |
| 2023-05-16 | 29059221.00 | ND |
| 2023-08-01 | 29657113.00 | ND |
| 2023-08-02 | 29657114.00 | ND |
| 2023-08-15 | 29846330.00 | ND |