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EWG's Tap Water Database — 2019 UPDATE

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Pentachlorophenol

City of Hewitt

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

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013N/A00N/A
2014ND30ND
2015ND40ND
2016ND20ND
2017ND30ND

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
2012-01-12AB77669ND
2012-01-12AB77666ND
2012-01-12AB77665ND
2012-01-12AB77668ND
2012-01-12AB77667ND
2014-01-14AC38674ND
2014-01-14AC38672ND
2014-01-14AC38673ND
2015-03-23AC85765ND
2015-03-23AC85762ND
2015-03-23AC85763ND
2015-10-28AD12063ND
2016-01-20AD19069ND
2016-04-06AD32184ND
2017-04-03AD78135ND
2017-10-09AD99890ND
2017-10-31AE03259ND