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EWG's Tap Water Database — 2019 UPDATE

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o-Dichlorobenzene

Magna Water District

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND20ND
2014N/A00N/A
2015N/A00N/A
2016ND40ND
2017ND90ND

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 Result
2013-02-08ND
2013-02-08ND
2016-01-26ND
2016-08-02ND
2016-08-02ND
2016-08-02ND
2017-02-16ND
2017-02-27ND
2017-05-10ND
2017-05-10ND
2017-07-11ND
2017-08-07ND
2017-08-07ND
2017-11-20ND
2017-11-20ND