Know Your Environment. Protect Your Health.

Pentachlorophenol

North Wales Water Authority

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

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND200ND
2021ND20ND
2022ND20ND
2023ND140ND

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
2018-04-038042063-01ND
2018-07-108073259-01ND
2019-04-029042086-01ND
2019-07-099073421-02ND
2020-04-0122025498.00ND
2020-04-2022026103.00ND
2020-04-2022026133.00ND
2020-04-2022026163.00ND
2020-04-2022026193.00ND
2020-04-2722217384.00ND
2020-04-2722217354.00ND
2020-04-2722217324.00ND
2020-04-2722217294.00ND
2020-04-2722217419.00ND
2020-07-0622609721.00ND
2020-07-2722801101.00ND
2020-07-2722801222.00ND
2020-07-2722801179.00ND
2020-07-2722801162.00ND
2020-07-2722801131.00ND
2020-08-3123001439.00ND
2020-08-3123001467.00ND
2020-08-3123001495.00ND
2020-08-3123001523.00ND
2021-04-0624249943.00ND
2021-07-0624831103.00ND
2022-04-0526466015.00ND
2022-07-0527039499.00ND
2023-04-0328705034.00ND
2023-04-0328705032.00ND
2023-04-0328705036.00ND
2023-04-0328705033.00ND
2023-04-0328705035.00ND
2023-04-0428705031.00ND
2023-06-2729110719.00ND
2023-07-1029304423.00ND
2023-07-1029304426.00ND
2023-07-1029304425.00ND
2023-07-1029304422.00ND
2023-07-1129304427.00ND
2023-07-1129304428.00ND
2023-07-1129304424.00ND