Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Hopedale Water Department

NOTE: Hopedale Water Department purchases water from Milford Water Company which is required to test for monochlorobenzene (chlorobenzene). Sample information shown below was taken by Milford Water Company.

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND40ND
2020ND50ND
2021ND50ND
2022ND40ND
2023ND40ND

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: Hopedale Water Department purchases water from Milford Water Company which is required to test for monochlorobenzene (chlorobenzene). Sample information shown below was taken by Milford Water Company.

Date Result
2018-05-15ND
2018-05-15ND
2018-05-15ND
2018-06-06ND
2018-06-28ND
2019-05-14ND
2019-05-14ND
2019-07-25ND
2019-10-09ND
2020-04-27ND
2020-04-28ND
2020-04-28ND
2020-04-28ND
2021-05-11ND
2021-05-11ND
2021-05-11ND
2021-05-11ND
2022-04-27ND
2022-04-27ND
2022-04-27ND
2022-06-16ND
2023-06-06ND
2023-06-06ND
2023-06-06ND
2023-06-06ND