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EWG's Tap Water Database — 2019 UPDATE

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o-Dichlorobenzene

City of Hewitt

o-Dichlorobenzene is used as a chemical intermediate for making agricultural herbicides. It is toxic to the liver, kidneys and the nervous system, and causes cancer in animal studies.

 

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
2014ND10ND
2015ND30ND
2016ND30ND
2017ND30ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 600 ppb

The EWG Health Guideline of 600 ppb for o-dichlorobenzene 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) 600 ppb

The legal limit for o-dichlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-12AB77664ND
2013-02-121302396002ND
2014-01-14AC38665ND
2015-03-23AC85649ND
2015-03-23AC85645ND
2015-03-23AC85655ND
2016-01-20AD19012ND
2016-01-20AD19002ND
2016-04-06AD32129ND
2017-04-03AD78087ND
2017-10-09AD99814ND
2017-10-31AE03236ND