Know Your Environment. Protect Your Health.

Pentachlorophenol

Monroe Water System

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
20230.00800 ppb21ND - 0.0160 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
2018-01-1035367821001ND
2018-01-1035367821001ND
2018-07-3035407880001ND
2018-07-3035407880001ND
2019-01-1435442603001ND
2019-01-1435442603001ND
2019-07-3135486743001ND
2019-07-3135486743001ND
2020-01-0635523114001ND
2020-07-1635564002001ND
2021-02-0235608834002ND
2021-09-2335666240001ND
2022-01-1835692112001ND
2022-08-1535741176001ND
2023-02-06357781770010.0160 ppb
2023-07-1835814092001ND