Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Gum Springs Water Supply Corporation 1

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
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-02-27Q1808381001ND
2018-02-27Q1808381006ND
2019-07-11Q1944045001ND
2019-07-11Q1944045003ND
2020-01-09Q2000958005ND
2020-01-09Q2000958007ND
2021-03-03Q2105607001ND
2021-03-03Q2105607003ND
2022-06-08Q2216068007ND
2022-06-08Q2216068009ND
2023-07-12Q2327383005ND
2023-07-12Q2327383007ND