Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Sand Flat Water Supply Corporation

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
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

Date Lab ID Result
2018-03-05Q1808890006ND
2018-03-05Q1808890008ND
2018-03-05Q1808890004ND
2019-08-22Q1958681002ND
2019-08-22Q1958681004ND
2019-08-22Q1958681006ND
2020-06-11Q2023583005ND
2020-06-11Q2023583007ND
2020-10-08Q2039611001ND
2021-08-05Q2120790006ND
2021-08-05Q2120790010ND
2021-08-05Q2120790008ND
2022-05-19Q2214818003ND
2022-05-19Q2214818005ND
2022-05-19Q2214818007ND
2023-06-01Q2320545005ND
2023-06-01Q2320545007ND
2023-06-01Q2320545009ND