Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Mccoy Water Supply Corporation

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND70ND
2021ND30ND
2022ND30ND
2023ND60ND

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
2018-02-05AE12259ND
2018-02-05AE12261ND
2018-02-05AE12257ND
2019-06-05AE69256ND
2019-06-05AE69258ND
2019-11-18AE89581ND
2020-03-26AF04716ND
2020-03-26AF04726ND
2020-03-26AF04728ND
2020-06-10AF14868ND
2020-06-10AF14870ND
2020-07-07AF18407ND
2020-07-07AF18403ND
2021-06-28AF59681ND
2021-09-20AF70457ND
2021-09-20AF70459ND
2022-07-05AG03259ND
2022-07-05AG03261ND
2022-07-05AG03263ND
2023-05-03AG39139ND
2023-05-03AG39145ND
2023-05-03AG39151ND
2023-05-03AG39153ND
2023-09-15AG56654ND
2023-10-02AG58143ND