Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Lockesburg Waterworks

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND20ND
2021ND10ND
2022ND30ND
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
2018-07-2418207001201ND
2019-02-0419038002601ND
2019-08-1919233000908ND
2020-02-0320037001701ND
2020-08-1720233006101ND
2021-01-2721028010701ND
2022-01-1122013001901ND
2022-04-06O196357-VOC-1ND
2022-07-19O199847-VOC-1ND
2023-02-07O206091-VOC-1ND
2023-07-31O211163-VOC-1ND