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EWG's Tap Water Database

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o-Dichlorobenzene

Danville City Water Works

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
2010ND40ND
2011ND40ND
2012ND10ND
2013ND10ND
2014ND10ND
2015ND10ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 600 ppb

The 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.

ppb = parts per billion.

EPA Maximum Contaminant
Level (MCL) 600 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)600 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2010-02-1690678301ND
2010-04-1990786001ND
2010-08-0290977701ND
2010-11-0191151201ND
2011-02-0891346701ND
2011-05-1691536301ND
2011-08-1591718601ND
2011-10-0391827401ND
2012-02-0692100801ND
2013-02-1892899501ND
2014-02-1793484601ND
2015-03-0294191601ND