Pentachlorophenol
City of Rusk
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 | 5 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2020-10-01 | Q2038626011 | ND |
| 2020-10-01 | Q2038626036 | ND |
| 2020-10-01 | Q2038626037 | ND |
| 2020-10-01 | Q2038626038 | ND |
| 2020-11-19 | Q2046158005 | ND |
| 2023-06-28 | Q2325031023 | ND |
| 2023-06-28 | Q2325031024 | ND |
| 2023-06-28 | Q2325031025 | ND |
| 2023-06-28 | Q2325031026 | ND |
| 2023-09-11 | Q2338755006 | ND |