Know Your Environment. Protect Your Health.

p-Dichlorobenzene

New Water Supply Corporation

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-06-06Q1822507003ND
2018-06-06Q1822507005ND
2018-06-06Q1822507001ND
2018-09-19Q1837597003ND
2019-06-03Q1930848003ND
2019-06-03Q1930848005ND
2019-09-23Q1968123001ND
2019-12-10Q1979549001ND
2020-11-09Q2043745001ND
2020-11-09Q2043745003ND
2020-11-09Q2043745007ND
2020-11-09Q2043745009ND
2021-04-15Q2109763009ND
2021-04-15Q2109763015ND
2021-04-15Q2109763013ND
2021-04-15Q2109763011ND
2022-05-09Q2213779004ND
2022-05-09Q2213779006ND
2022-05-09Q2213779009ND
2022-05-09Q2213779011ND
2023-06-15Q2322767004ND
2023-06-15Q2322767006ND
2023-06-15Q2322767016ND
2023-06-15Q2322767018ND