Pentachlorophenol
Telford Borough 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 | N/A | 0 | 0 | N/A |
| 2020 | ND | 19 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 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 |
|---|---|---|
| 2020-03-03 | 21850270.00 | ND |
| 2020-03-03 | 21850212.00 | ND |
| 2020-03-03 | 21850242.00 | ND |
| 2020-03-03 | 21850182.00 | ND |
| 2020-06-01 | 22419247.00 | ND |
| 2020-06-01 | 22419367.00 | ND |
| 2020-06-01 | 22419281.00 | ND |
| 2020-06-01 | 22419337.00 | ND |
| 2020-06-01 | 22419307.00 | ND |
| 2020-08-24 | 23002188.00 | ND |
| 2020-08-24 | 23002307.00 | ND |
| 2020-08-24 | 23002218.00 | ND |
| 2020-08-24 | 23002248.00 | ND |
| 2020-09-14 | 23002278.00 | ND |
| 2020-10-12 | 23185483.00 | ND |
| 2020-10-12 | 23185423.00 | ND |
| 2020-10-12 | 23185453.00 | ND |
| 2020-10-12 | 23185393.00 | ND |
| 2020-12-01 | 23540113.00 | ND |
| 2021-01-13 | 23715301.00 | ND |
| 2023-05-03 | 28902907.00 | ND |
| 2023-05-03 | 28902906.00 | ND |
| 2023-05-03 | 28902908.00 | ND |
| 2023-05-03 | 28902905.00 | ND |
| 2023-05-03 | 28902904.00 | ND |
| 2023-08-02 | 29500123.00 | ND |
| 2023-08-02 | 29500121.00 | ND |
| 2023-08-02 | 29500125.00 | ND |
| 2023-08-02 | 29500122.00 | ND |
| 2023-08-02 | 29500124.00 | ND |