Pentachlorophenol
Newtown Artesian Water Company
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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 10 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-07-05 | L7008282-1 | ND |
| 2019-07-01 | 9020447-01 | ND |
| 2020-05-01 | 22195210.00 | ND |
| 2020-05-01 | 22195268.00 | ND |
| 2020-05-01 | 22195239.00 | ND |
| 2020-05-08 | 22393322.00 | ND |
| 2020-05-08 | 22393351.00 | ND |
| 2020-07-06 | 22587718.00 | ND |
| 2020-07-06 | 22587747.00 | ND |
| 2020-07-06 | 22587776.00 | ND |
| 2020-07-07 | 22587805.00 | ND |
| 2020-07-07 | 22587834.00 | ND |
| 2021-07-06 | 24809551.00 | ND |
| 2022-07-05 | 26824118.00 | ND |
| 2023-04-03 | 28681855.00 | ND |
| 2023-04-03 | 28681828.00 | ND |
| 2023-07-05 | 29282882.00 | ND |
| 2023-07-05 | 29283044.00 | ND |
| 2023-07-06 | 29283016.00 | ND |