Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

San Bernard River Estates

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND30ND
2022ND20ND
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
2018-08-14AE36957ND
2018-08-14AE36961ND
2019-04-17AE62768ND
2019-08-26AE80689ND
2020-09-16AF27599ND
2020-12-10AF37309ND
2021-05-12AF53572ND
2021-05-12AF53578ND
2021-09-29AF71680ND
2022-09-20AG14196ND
2022-09-20AG14198ND
2023-06-14AG44507ND