Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Newfield Water Department

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
2018ND30ND
2019ND30ND
2020ND10ND
2021ND20ND
2022ND10ND
2023ND10ND

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
2018-09-12Q78226VOCND
2018-09-12Q78227VOCND
2018-10-23Q79497VOCND
2019-03-11R82465VOCND
2019-06-05R85564VOCND
2019-08-13R87720SOCND
2020-03-17S93256VOCND
2021-03-03T104110VOCND
2021-03-03T104111VOCND
2022-03-24U117244VOCND
2023-03-08V127146VOCND