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EWG's Tap Water Database — 2021 UPDATE

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Monochlorobenzene (chlorobenzene)

Cedar Falls Acres Mobile Home Park

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND40ND
2016ND30ND
2017ND40ND
2018ND20ND
2019ND10ND

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
2014-09-04155134001ND
2014-12-11172425001ND
2015-03-24184915001ND
2015-06-24202048001ND
2015-09-14217339001ND
2015-12-17233338001ND
2016-03-28705337ND
2016-09-28281101001ND
2016-11-07287856001ND
2017-03-28306584001ND
2017-06-28325298001ND
2017-09-28345843001ND
2017-11-27356248001ND
2018-08-211075273ND
2018-12-26425684001ND
2019-09-26473087001ND