Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

West Monroe 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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019N/A00N/A
2020ND20ND
2021ND40ND
2022N/A00N/A
2023ND60ND

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
2018-07-1635405319001ND
2018-07-1635405319001ND
2020-02-1735531852001ND
2020-02-1735531852002ND
2021-04-2835631538002ND
2021-04-2835631539003ND
2021-04-2835631539006ND
2021-06-1535641332001ND
2023-06-2035808080001ND
2023-06-2035808080002ND
2023-06-2035808080003ND
2023-06-2635809317001ND
2023-06-2635809317002ND
2023-06-2635809317003ND