Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Sfpuc-pleasanton Wells

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
2020ND20ND
2021ND10ND
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
2018-06-18CA0110018_004_004-201806181217ND
2018-06-18CA0110018_005_005-201806181151ND
2019-06-17CA0110018_005_005-201906170900ND
2019-06-26CA0110018_004_004-201906261235ND
2020-06-16CA0110018_005_005-202006160922ND
2020-06-16CA0110018_004_004-202006160834ND
2021-06-23CA0110018_005_005-202106231035ND
2022-06-14CA0110018_005_005-202206140840ND
2022-06-14CA0110018_004_004-202206140920ND
2023-06-22CA0110018_004_004-202306220911ND
2023-09-14CA0110018_005_005-202309140950ND