Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Hart Municipal 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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND20ND
2023ND40ND

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
2018-08-02Q1830741002ND
2019-05-30Q1930307002ND
2020-02-27Q2007416001ND
2021-07-15Q2118660004ND
2022-07-14Q2220308003ND
2022-10-12Q2230982001ND
2023-01-19Q2302869001ND
2023-04-05Q2312662001ND
2023-08-08Q2332884001ND
2023-10-05Q2342814001ND