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EWG's Tap Water Database — 2019 UPDATE

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o-Dichlorobenzene

Cone Delfred Subdivision

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
2012ND40ND
2013ND40ND
2014ND10ND
2015ND10ND
2016ND10ND
2017ND10ND

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
2012-03-23120323005-001ND
2012-06-13120614051-001ND
2012-09-19120920006-001ND
2012-12-12121213004-001ND
2013-03-15V130315026-001ND
2013-06-11130613015-001ND
2013-09-18V130919037-001ND
2013-12-1113122069-001ND
2014-09-23140924006-001ND
2015-08-26150827033-001ND
2016-12-14VOCS161215002-00ND
2017-09-26VOC170927006-001ND