Know Your Environment. Protect Your Health.

Pentachlorophenol

Mille Lacs Island Resort

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

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND20ND
20210.235 ppb220.220 ppb - 0.250 ppb
20220.225 ppb220.210 ppb - 0.240 ppb
20230.0925 ppb42ND - 0.190 ppb

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
2020-10-0220J0179-01ND
2020-10-0220J0179-02ND
2021-06-3021F1878-010.250 ppb
2021-08-1021H0853-010.220 ppb
2022-05-1722E1407-010.240 ppb
2022-07-1222G0658-020.210 ppb
2023-01-0923A0178-01ND
2023-06-0123F0180-010.190 ppb
2023-07-2723G1982-010.180 ppb
2023-07-2723G1984-02ND