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EWG's Tap Water Database — 2019 UPDATE

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p-Dichlorobenzene

Town of Iota Water System

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.587 ppb64ND - 0.960 ppb
2013N/A00N/A
2014N/A00N/A
20150.283 ppb660.260 ppb - 0.300 ppb
2016N/A00N/A
2017ND40ND

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
2012-06-25AD66847ND
2012-06-25AD66847ND
2012-07-09AD673640.960 ppb
2012-07-09AD673650.800 ppb
2012-07-09AD673650.800 ppb
2012-07-09AD673640.960 ppb
2015-08-03352006430030.290 ppb
2015-08-03352006430020.260 ppb
2015-08-03352006430010.300 ppb
2015-08-03352006430020.260 ppb
2015-08-03352006430030.290 ppb
2015-08-03352006430010.300 ppb
2017-02-0335293758006ND
2017-02-0335293758006ND
2017-03-0935300470006ND
2017-03-0935300470006ND