Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

City of Brady Water System

Monochlorobenzene is used as a solvent for pesticides, a degreasing agent and an intermediate for manufacturing other chemicals. It causes liver and kidney damage in studies of laboratory animals.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND70ND
2020ND30ND
2021ND30ND
2022ND50ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 70 ppb

The EWG Health Guideline of 70 ppb for monochlorobenzene 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL): 100 ppb

The legal limit for monochlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-20AE14781ND
2018-02-20AE14767ND
2018-08-01AE35602ND
2019-02-20AE55314ND
2019-02-20AE55316ND
2019-02-20AE55320ND
2019-02-20AE55322ND
2019-04-15AE62548ND
2019-04-15AE62550ND
2019-07-15AE74670ND
2020-02-26AF00264ND
2020-02-26AF00268ND
2020-02-26AF00262ND
2021-01-13AF39504ND
2021-01-13AF39520ND
2021-01-13AF39530ND
2022-06-14AG00840ND
2022-06-14AG00842ND
2022-06-14AG00844ND
2022-08-04AG07863ND
2022-08-04AG07865ND
2023-01-19AG25278ND
2023-01-19AG25284ND