Know Your Environment. Protect Your Health.

Pentachlorophenol

Metropolitan Utilities District

Pentachlorophenol is a carcinogenic chemical used as a wood preservative. It harms developing fetuses, and causes immune suppression and hormone disruption.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND20ND
2020ND20ND
2021ND10ND
2022ND10ND
2023ND50ND

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
2018-05-21546381ND
2018-07-16560814ND
2018-07-16560815ND
2019-07-15621273ND
2019-07-15621274ND
2020-07-07684324ND
2020-07-07684323ND
2021-07-06746188ND
2022-07-11809376ND
2023-01-17844807ND
2023-01-17844808ND
2023-01-17844809ND
2023-07-17873552ND
2023-07-17873553ND