Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Town North Village Water System

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND10ND
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
2018-05-09Q1819091005ND
2018-05-09Q1819091013ND
2019-06-05Q1932448005ND
2019-06-05Q1932448007ND
2020-03-19Q2012064001ND
2021-06-03Q2114439003ND
2021-08-10Q2121174005ND
2022-01-31Q2203435003ND
2022-01-31Q2203435005ND
2023-02-22Q2307453004ND
2023-02-22Q2307453007ND