Pentachlorophenol
Woodlake, City Of
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 | 12 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 14 | 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 |
|---|---|---|
| 2018-06-28 | CA5410020_010_010-201806281355 | ND |
| 2018-06-28 | CA5410020_009_009-201806281344 | ND |
| 2018-06-28 | CA5410020_007_007-201806281313 | ND |
| 2018-06-28 | CA5410020_005_005-201806281240 | ND |
| 2018-06-28 | CA5410020_006_006-201806281320 | ND |
| 2018-06-28 | CA5410020_004_004-201806281258 | ND |
| 2018-09-20 | CA5410020_005_005-201809201240 | ND |
| 2018-09-20 | CA5410020_004_004-201809201250 | ND |
| 2018-09-20 | CA5410020_009_009-201809201154 | ND |
| 2018-09-20 | CA5410020_010_010-201809201140 | ND |
| 2018-12-28 | CA5410020_010_010-201812281235 | ND |
| 2018-12-28 | CA5410020_009_009-201812281305 | ND |
| 2019-05-07 | CA5410020_009_009-201905071340 | ND |
| 2019-05-07 | CA5410020_010_010-201905071315 | ND |
| 2019-11-26 | CA5410020_010_010-201911261325 | ND |
| 2019-11-26 | CA5410020_009_009-201911261340 | ND |
| 2020-09-15 | CA5410020_010_010-202009151144 | ND |
| 2021-08-31 | CA5410020_005_005-202108311010 | ND |
| 2022-09-22 | CA5410020_009_009-202209221328 | ND |
| 2022-09-27 | CA5410020_008_008-202209271225 | ND |
| 2023-03-27 | CA5410020_005_005-202303271310 | ND |
| 2023-03-27 | CA5410020_008_008-202303271210 | ND |
| 2023-03-27 | CA5410020_006_006-202303271240 | ND |
| 2023-03-27 | CA5410020_007_007-202303271255 | ND |
| 2023-03-27 | CA5410020_009_009-202303271145 | ND |
| 2023-03-27 | CA5410020_004_004-202303271340 | ND |
| 2023-03-27 | CA5410020_010_010-202303271130 | ND |
| 2023-06-05 | CA5410020_009_009-202306051145 | ND |
| 2023-06-05 | CA5410020_010_010-202306051135 | ND |
| 2023-06-05 | CA5410020_007_007-202306051310 | ND |
| 2023-06-05 | CA5410020_006_006-202306051250 | ND |
| 2023-06-05 | CA5410020_008_008-202306051220 | ND |
| 2023-06-08 | CA5410020_005_005-202306081325 | ND |
| 2023-06-08 | CA5410020_004_004-202306081315 | ND |