Pentachlorophenol
Paw Glen Alsace Div
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 | ND | 4 | 0 | ND |
| 2020 | ND | 24 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 24 | 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 |
|---|---|---|
| 2019-07-22 | 45717501 | ND |
| 2019-07-22 | 45717601 | ND |
| 2019-07-22 | 45717401 | ND |
| 2019-07-29 | 46133302 | ND |
| 2020-05-04 | 22262940.00 | ND |
| 2020-05-04 | 22262911.00 | ND |
| 2020-05-06 | 22263079.00 | ND |
| 2020-05-11 | 22262998.00 | ND |
| 2020-05-11 | 22262969.00 | ND |
| 2020-05-11 | 22262824.00 | ND |
| 2020-05-13 | 22263050.00 | ND |
| 2020-05-13 | 22262882.00 | ND |
| 2020-05-13 | 22262853.00 | ND |
| 2020-05-18 | 22263392.00 | ND |
| 2020-05-19 | 22263450.00 | ND |
| 2020-05-19 | 22263421.00 | ND |
| 2020-08-04 | 22845362.00 | ND |
| 2020-08-04 | 22845391.00 | ND |
| 2020-08-06 | 22845333.00 | ND |
| 2020-08-06 | 22845512.00 | ND |
| 2020-08-11 | 22845483.00 | ND |
| 2020-08-11 | 22845425.00 | ND |
| 2020-08-11 | 22845454.00 | ND |
| 2020-08-12 | 22845304.00 | ND |
| 2020-08-12 | 22845920.00 | ND |
| 2020-08-12 | 22845891.00 | ND |
| 2020-08-13 | 22845978.00 | ND |
| 2020-08-18 | 22845949.00 | ND |
| 2023-05-04 | 28950167.00 | ND |
| 2023-05-04 | 28950196.00 | ND |
| 2023-05-04 | 28950138.00 | ND |
| 2023-05-04 | 28950109.00 | ND |
| 2023-05-04 | 28950080.00 | ND |
| 2023-05-11 | 28950257.00 | ND |
| 2023-05-11 | 28950022.00 | ND |
| 2023-05-11 | 28950201.00 | ND |
| 2023-05-11 | 28950315.00 | ND |
| 2023-05-11 | 28950286.00 | ND |
| 2023-05-11 | 28950051.00 | ND |
| 2023-05-11 | 28949993.00 | ND |
| 2023-08-03 | 29546862.00 | ND |
| 2023-08-03 | 29546836.00 | ND |
| 2023-08-03 | 29546886.00 | ND |
| 2023-08-03 | 29546923.00 | ND |
| 2023-08-03 | 29546780.00 | ND |
| 2023-08-09 | 29546778.00 | ND |
| 2023-08-09 | 29547000.00 | ND |
| 2023-08-09 | 29546749.00 | ND |
| 2023-08-09 | 29546720.00 | ND |
| 2023-08-10 | 29546984.00 | ND |
| 2023-08-10 | 29546955.00 | ND |
| 2023-08-10 | 29546691.00 | ND |