Know Your Environment. Protect Your Health.

Pentachlorophenol

Washington Ridge C.c.

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND30ND
2020ND10ND
2021N/A00N/A
2022ND60ND
2023N/A00N/A

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
2018-03-21CA2910013_005_005-201803210800ND
2018-06-06CA2910013_005_005-201806061000ND
2018-07-18CA2910013_005_005-201807180930ND
2018-11-27CA2910013_005_005-201811271000ND
2019-03-27CA2910013_002_002-201903270830ND
2019-03-27CA2910013_003_003-201903270845ND
2019-03-27CA2910013_005_005-201903270900ND
2020-06-16CA2910013_005_005-202006161330ND
2022-03-08CA2910013_003_003-202203081111ND
2022-03-08CA2910013_002_002-202203081033ND
2022-03-08CA2910013_003_003-202203081111ND
2022-03-08CA2910013_002_002-202203081033ND
2022-03-08CA2910013_005_005-202203081138ND
2022-03-08CA2910013_005_005-202203081138ND