Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Western Lake 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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND20ND
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
2018-11-15Q1846766009ND
2018-11-15Q1846766017ND
2018-11-15Q1846766001ND
2019-09-17Q1965846001ND
2019-09-17Q1965846003ND
2019-09-17Q1965846005ND
2020-09-03Q2035187003ND
2020-09-03Q2035187005ND
2021-08-12Q2121648001ND
2021-08-12Q2121648003ND
2021-11-23Q2132786005ND
2022-08-02Q2222020002ND
2022-10-31Q2233056005ND
2022-10-31Q2233056007ND
2023-08-23Q2335766001ND
2023-08-23Q2335766003ND
2023-08-23Q2335766005ND