Know Your Environment. Protect Your Health.

Pentachlorophenol

Western Cass Water Supply Corporation

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

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND90ND
2021N/A00N/A
2022N/A00N/A
2023ND60ND

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
2020-03-19Q2011997008ND
2020-03-19Q2011997019ND
2020-04-21Q2015767024ND
2020-04-21Q2015767025ND
2020-04-21Q2015767026ND
2020-04-21Q2015767027ND
2020-04-21Q2015767040ND
2020-07-28Q2029440009ND
2020-10-22Q2041222009ND
2023-08-01Q2331111003ND
2023-08-01Q2331111014ND
2023-10-02Q2342120002ND
2023-10-02Q2342120018ND
2023-10-02Q2342120019ND
2023-10-02Q2342120020ND