Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Brandon-irene Water Supply Corporation

NOTE: Brandon-irene Water Supply Corporation purchases water from Aquilla WSD which is required to test for monochlorobenzene (chlorobenzene). Sample information shown below was taken by Aquilla WSD.

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND40ND
2020ND30ND
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

NOTE: Brandon-irene Water Supply Corporation purchases water from Aquilla WSD which is required to test for monochlorobenzene (chlorobenzene). Sample information shown below was taken by Aquilla WSD.

Date Lab ID Result
2018-07-11Q1827265002ND
2019-07-10Q1943492003ND
2020-07-09Q2026950002ND
2021-07-07Q2117789002ND
2022-08-10Q2223014001ND
2023-07-17Q2327747001ND