Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Pentachlorophenol

Ozark Utilities Board

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

MORE ABOUT THIS CONTAMINANT

 

32

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
2016ND160ND
2017N/A00N/A
2018N/A00N/A
2019ND160ND

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
2016-02-18AB10063ND
2016-02-18AB10071ND
2016-02-18AB10061ND
2016-02-18AB10067ND
2016-06-13AB12393ND
2016-06-13AB12394ND
2016-06-13AB12395ND
2016-06-13AB12396ND
2016-08-03AB14009ND
2016-08-03AB14010ND
2016-08-03AB14011ND
2016-08-03AB14008ND
2016-12-27AB17039ND
2016-12-27AB17042ND
2016-12-27AB17040ND
2016-12-27AB17041ND
2019-02-07AB32884ND
2019-02-07AB32886ND
2019-02-07AB32887ND
2019-02-07AB32885ND
2019-06-19AB36110ND
2019-06-19AB36107ND
2019-06-19AB36108ND
2019-06-19AB36109ND
2019-08-27AB37950ND
2019-08-27AB37951ND
2019-08-27AB37952ND
2019-08-27AB37953ND
2019-11-21AB40299ND
2019-11-21AB40297ND
2019-11-21AB40298ND
2019-11-21AB40300ND