Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Kirkmont Municipal Utility District

NOTE: Kirkmont Municipal Utility District purchases water from Sagemeadow Utility District which is required to test for monochlorobenzene (chlorobenzene). Sample information shown below was taken by Sagemeadow Utility District.

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
2021ND10ND
2022ND10ND
2023ND10ND

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: Kirkmont Municipal Utility District purchases water from Sagemeadow Utility District which is required to test for monochlorobenzene (chlorobenzene). Sample information shown below was taken by Sagemeadow Utility District.

Date Lab ID Result
2018-04-12AE22292ND
2018-04-12AE22302ND
2019-02-19AE54864ND
2019-02-19AE54878ND
2020-02-19AE98980ND
2020-02-19AE98982ND
2021-03-04AF45423ND
2021-03-04AF45425ND
2022-03-24AF90466ND
2022-03-24AF90498ND
2023-02-22AG29946ND