Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

South Grayson 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.

 

34

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND50ND
2020ND50ND
2021ND50ND
2022ND80ND
2023ND50ND

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
2018-02-06Q1804974001ND
2018-05-04Q1818259004ND
2018-10-15Q1840862007ND
2018-10-15Q1840862009ND
2018-10-15Q1840862011ND
2018-10-15Q1840862013ND
2019-08-13Q1954236016ND
2019-08-13Q1954236018ND
2019-08-13Q1954236014ND
2019-08-13Q1954236012ND
2019-08-13Q1954236010ND
2020-08-06Q2031194009ND
2020-08-06Q2031194011ND
2020-08-06Q2031194013ND
2020-08-06Q2031194015ND
2020-08-06Q2031194017ND
2021-11-10Q2131631012ND
2021-11-10Q2131631018ND
2021-11-10Q2131631016ND
2021-11-10Q2131631014ND
2021-11-10Q2131631010ND
2022-02-08Q2204251002ND
2022-04-26Q2212466007ND
2022-04-26Q2212466009ND
2022-04-26Q2212466011ND
2022-04-26Q2212466013ND
2022-04-26Q2212466015ND
2022-08-17Q2224360001ND
2022-10-19Q2231831001ND
2023-05-16Q2318439007ND
2023-05-16Q2318439009ND
2023-05-16Q2318439011ND
2023-05-16Q2318439013ND
2023-05-16Q2318439015ND