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EWG's Tap Water Database — 2021 UPDATE

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Monochlorobenzene (chlorobenzene)

Whitehall Twp Authority

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
2015ND60ND
2016ND60ND
2017ND90ND
2018ND20ND
2019ND20ND

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
2014-02-1114011560-06ND
2014-02-1114011560-01ND
2014-02-1114011560-02ND
2014-02-1114011560-03ND
2014-02-1114011560-04ND
2014-02-1114011560-05ND
2014-02-1114011560-07ND
2014-05-0614041101-01ND
2014-05-0614041101-02ND
2014-08-1214073702-01ND
2014-08-1214073702-02ND
2014-11-0414100715-02ND
2014-11-0414100715-01ND
2015-02-0512436939ND
2015-02-0512436960ND
2015-02-0512436897ND
2015-05-0512790928ND
2015-08-1813173190ND
2015-11-0413427367ND
2016-02-0413905681ND
2016-02-0413905660ND
2016-02-0413905618ND
2016-05-0314149489ND
2016-08-0214787697ND
2016-11-0815269546ND
2017-02-0715697027ND
2017-02-0715697069ND
2017-02-0715697090ND
2017-02-0715697111ND
2017-02-0715697132ND
2017-02-0715697153ND
2017-05-0216144971ND
2017-09-0516774053ND
2017-11-0717064746ND
2018-02-138013120-01ND
2018-02-138013121-01ND
2019-02-059012092-01ND
2019-02-059012093-01ND