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EWG's Tap Water Database — 2021 UPDATE

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Pentachlorophenol

Cerritos - City, Water Department

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
2013N/A00N/A
2014N/A00N/A
2015ND50ND
2016ND10ND
2017N/A00N/A
2018ND60ND
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
2015-02-122706-001-1200ND
2015-02-122706-003-1250ND
2015-05-282706-001-0855ND
2015-05-282706-003-0910ND
2015-06-302706-002-1400ND
2016-05-259588-002-1340ND
2018-02-229588-001-1110ND
2018-02-229588-002-1210ND
2018-02-229588-003-1130ND
2018-05-249588-001-1130ND
2018-05-249588-002-1215ND
2018-05-249588-003-1150ND