Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

City of Woodway

NOTE: City of Woodway purchases water from City of Waco which is required to test for monochlorobenzene (chlorobenzene). Sample information shown below was taken by City of Waco.

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND60ND
2020ND70ND
2021ND60ND
2022ND60ND
2023ND60ND

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: City of Woodway purchases water from City of Waco which is required to test for monochlorobenzene (chlorobenzene). Sample information shown below was taken by City of Waco.

Date Lab ID Result
2018-07-19AE33959ND
2018-07-19AE33981ND
2019-07-23AE75565ND
2019-07-23AE75567ND
2020-02-05AE97085ND
2020-08-04AF21834ND
2020-08-04AF21836ND
2021-07-21AF62957ND
2021-07-21AF62959ND
2022-07-06AG03334ND
2022-07-06AG03338ND
2023-08-02AG51088ND
2023-08-02AG51114ND