Know Your Environment. Protect Your Health.

Pentachlorophenol

Thibodaux Waterworks

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2018-01-2535370415010ND
2018-01-2535370415010ND
2018-07-2335406292001ND
2018-07-2335406292001ND
2019-01-2935445087001ND
2019-01-2935445087001ND
2019-07-2435484852001ND
2019-07-2435484852001ND
2020-01-2235526014001ND
2020-10-1535585521001ND
2021-03-1135619284001ND
2021-11-0435675780001ND
2022-02-1035696479001ND
2022-08-2535742733001ND
2023-02-2735782421001ND
2023-10-2335836722001ND