Pentachlorophenol
Sugar Mountain Utility
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 | 16 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 16 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-02-27 | 7041-022718-OJKS | ND |
| 2018-02-27 | 7041-022718-OGHS | ND |
| 2018-02-27 | 7041-022718-OPQS | ND |
| 2018-02-27 | 7041-022718-OOWS | ND |
| 2018-02-27 | 7041-022718-OOTS | ND |
| 2018-02-27 | 7041-022718-OOSS | ND |
| 2018-02-27 | 7041-022718-OORS | ND |
| 2018-02-27 | 7041-022718-OONS | ND |
| 2018-02-27 | 7041-022718-OOFS | ND |
| 2018-02-27 | 7041-022718-OOES | ND |
| 2018-02-27 | 7041-022718-OODS | ND |
| 2018-02-27 | 7041-022718-OOCS | ND |
| 2018-02-27 | 7041-022718-OOBS | ND |
| 2018-02-27 | 7041-022718-OOAS | ND |
| 2018-02-27 | 7041-022718-OOIS | ND |
| 2018-07-24 | 7041-072418-OLMS | ND |
| 2020-02-11 | 7041-021120-OOVS | ND |
| 2020-07-14 | 7041-071420-OOXS | ND |
| 2021-04-14 | 7041-041421-OPQS | ND |
| 2021-04-14 | 7041-041421-OJKS | ND |
| 2021-04-14 | 7041-041421-OOWS | ND |
| 2021-04-14 | 7041-041421-OOTS | ND |
| 2021-04-14 | 7041-041421-OOSS | ND |
| 2021-04-14 | 7041-041421-OORS | ND |
| 2021-04-14 | 7041-041421-OONS | ND |
| 2021-04-14 | 7041-041421-OOIS | ND |
| 2021-04-14 | 7041-041421-OOFS | ND |
| 2021-04-14 | 7041-041421-OOES | ND |
| 2021-04-14 | 7041-041421-OODS | ND |
| 2021-04-14 | 7041-041421-OOCS | ND |
| 2021-04-14 | 7041-041421-OOBS | ND |
| 2021-04-14 | 7041-041421-OOAS | ND |
| 2021-04-14 | 7041-041421-OGHS | ND |
| 2021-09-21 | 7041-092121-OLMS | ND |
| 2023-03-01 | 752-3738-1 | ND |
| 2023-08-30 | 752-11124-1 | ND |
| 2023-08-30 | 752-11126-1 | ND |
| 2023-10-17 | 752-12711-1 | ND |