Know Your Environment. Protect Your Health.

Pentachlorophenol

City of Wilsonville

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

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND30ND
2022ND20ND
2023ND10ND

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
2018-01-10201712040042-SND
2018-04-11201803050004-SND
2018-07-18201807190944-SND
2018-10-10201809030044-SND
2019-01-09201812030009-SND
2019-04-10201904110241-SND
2019-07-10201907110430-SND
2019-10-08201910090408-SND
2020-01-02202001030119-SND
2020-04-15202004160157-SND
2020-07-15202007160188-SND
2020-10-14202010150105-SND
2021-01-06202101070374-SND
2021-04-14202104150878-SND
2021-07-27202107280247-SND
2022-02-02202202030907-SND
2022-04-13202204140832-SND
2023-06-06380-50204-1-SND