Pentachlorophenol
Altoona Water 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 | 12 | 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 |
|---|---|---|
| 2020-05-18 | 22286947.00 | ND |
| 2020-05-18 | 22286920.00 | ND |
| 2020-05-18 | 22286974.00 | ND |
| 2020-05-21 | 22483949.00 | ND |
| 2020-05-21 | 22484003.00 | ND |
| 2020-05-21 | 22483975.00 | ND |
| 2020-07-15 | 22676330.00 | ND |
| 2020-07-15 | 22676357.00 | ND |
| 2020-07-15 | 22676163.00 | ND |
| 2020-07-16 | 22869604.00 | ND |
| 2020-07-16 | 22676411.00 | ND |
| 2020-07-16 | 22676384.00 | ND |
| 2023-04-27 | 28974662.00 | ND |
| 2023-04-27 | 28974642.00 | ND |
| 2023-05-03 | 28974791.00 | ND |
| 2023-05-03 | 28974758.00 | ND |
| 2023-05-04 | 28974703.00 | ND |
| 2023-08-02 | 29372123.00 | ND |
| 2023-08-02 | 29372129.00 | ND |
| 2023-08-03 | 29571041.00 | ND |
| 2023-08-03 | 29571047.00 | ND |
| 2023-08-10 | 29571100.00 | ND |