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EWG's Tap Water Database — 2021 UPDATE

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Pentachlorophenol

Sjra Grp Sw Treatment Plant

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

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND80ND
2017ND20ND
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2016-04-12AD32901ND
2016-04-12AD32902ND
2016-04-12AD32878ND
2016-04-12AD32879ND
2016-09-16AD50201ND
2016-09-16AD50204ND
2016-12-02AD60451ND
2016-12-02AD60455ND
2017-01-19AD65832ND
2017-01-19AD65836ND