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EWG's Tap Water Database — 2019 UPDATE

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Monochlorobenzene (chlorobenzene)

Doyon Utilities Jber - Richardson

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
2014ND30ND
2015ND10ND
2016ND20ND
2017ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2012-01-03VO*2573208ND
2013-01-15VO*2766769ND
2014-01-06VO*2955028ND
2014-01-06VO*2955030ND
2014-01-06VO*2955032ND
2015-01-12VO*3171366ND
2016-03-29VO*3421833ND
2016-04-11VO*3429784ND
2017-01-03VO*3617587ND
2017-01-03VO*3617588ND
2017-01-03VO*3617589ND
2017-01-03VO*3617590ND