Know Your Environment. Protect Your Health.

Pentachlorophenol

Patton Village West Water System

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
2018ND10ND
2019N/A00N/A
2020ND60ND
2021ND30ND
2022ND20ND
2023ND50ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-09-19AE40833ND
2020-07-30AF21465ND
2020-07-30AF21466ND
2020-07-30AF21467ND
2020-10-05AF29537ND
2020-10-05AF29538ND
2020-10-05AF29545ND
2021-01-12AF38918ND
2021-01-12AF38915ND
2021-05-07AF53064ND
2022-08-10AG08658ND
2022-10-18AG17503ND
2023-01-10AG23826ND
2023-04-03AG35210ND
2023-05-10AG40085ND
2023-07-14AG48861ND
2023-10-26AG61334ND