Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Stringer Water Works

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND50ND
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
2018-09-18180919-002VOND
2019-01-28190129-011VOND
2019-01-28190129-012VOND
2020-04-21200422-007VOND
2020-04-21200422-008VOND
2021-08-31VO-210901-009ND
2021-09-14VO-210915-013ND
2022-02-08VO-220209-010ND
2022-02-08VO-220209-011ND
2022-06-07VO-220608-025ND
2022-06-07VO-220608-026ND
2022-06-07VO-220608-027ND
2023-01-31VO-230201-016ND
2023-01-31VO-230201-017ND