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EWG's Tap Water Database — 2019 UPDATE

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p-Dichlorobenzene

Golden State Water Company (GSWC) - San Dimas

p-Dichlorobenzene is a carcinogenic insecticide used in mothballs, and added to deodorant blocks made for trash cans and toilets. Long-term exposure can cause liver damage and kidney problems.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 6 ppb

The EWG Health Guideline of 6 ppb for p-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 cancer.

EPA Maximum Contaminant
Level (MCL) 75 ppb

The legal limit for p-dichlorobenzene, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1980s. This limit may not fully protect against the risk of cancer due to p-dichlorobenzene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-089588-051-0940ND
2012-05-149588-014-1000ND
2013-02-209588-051-0925ND
2013-06-279588-014-1015ND
2014-02-199588-051-0930ND
2014-05-149588-014-1010ND
2015-02-189588-051-0920ND
2015-05-189588-014-0915ND
2016-02-169588-051-0825ND
2016-05-129588-014-0925ND
2017-01-059588-051-0800ND
2017-05-159588-014-0905ND