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EWG's Tap Water Database — 2019 UPDATE

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Pentachlorophenol

Harris County MUD 165

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND

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
2012-01-11AB77576ND
2012-01-11AB77577ND
2013-06-13AC22142ND
2013-06-13AC22122ND
2014-03-20AC47837ND
2014-07-16AC59860ND
2015-05-27AC93466ND
2015-05-27AC93470ND
2016-03-21AD29734ND
2016-03-21AD29762ND
2017-05-04AD82849ND
2017-05-04AD82843ND