Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

San Jacinto Special Utility District

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND60ND
2020ND30ND
2021ND30ND
2022ND30ND
2023ND30ND

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
2018-03-12AE17846ND
2018-03-12AE17880ND
2018-03-12AE17838ND
2019-03-13AE58223ND
2019-03-13AE58225ND
2019-03-13AE58227ND
2019-06-06AE69493ND
2019-08-01AE76824ND
2019-12-05AE91443ND
2020-01-22AE94690ND
2020-03-10AF01991ND
2020-03-10AF01997ND
2021-01-11AF38521ND
2021-01-11AF38523ND
2021-03-08AF45724ND
2022-01-24AF81297ND
2022-05-02AF95080ND
2022-05-02AF95082ND
2023-03-14AG32973ND
2023-03-14AG32981ND
2023-06-08AG43780ND