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EWG's Tap Water Database — 2021 UPDATE

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Pentachlorophenol

Valencia Water Company

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND100ND
2015N/A00N/A
2016N/A00N/A
2017ND100ND
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
2014-03-059590-062-1045ND
2014-03-129590-052-0850ND
2014-03-269590-073-0820ND
2014-03-269590-003-1000ND
2014-06-049590-062-0900ND
2014-06-049590-052-1000ND
2014-06-259590-073-0820ND
2014-06-259590-003-1030ND
2014-09-049590-052-0910ND
2014-12-049590-052-0950ND
2017-03-029590-062-0907ND
2017-03-029590-052-0950ND
2017-03-239590-073-0907ND
2017-03-239590-003-0805ND
2017-06-019590-062-0930ND
2017-06-019590-052-0855ND
2017-06-229590-073-0950ND
2017-06-229590-003-0850ND
2017-08-249590-073-0815ND
2017-10-269590-073-0810ND