Know Your Environment. Protect Your Health.

p-Dichlorobenzene

Chalk Hill Special Utility District

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND40ND
2020ND40ND
2021ND30ND
2022ND30ND
2023ND30ND

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
2018-06-20Q1824487007ND
2018-06-20Q1824487009ND
2018-06-20Q1824487006ND
2019-01-10Q1901411003ND
2019-04-08Q1914000002ND
2019-04-08Q1914000005ND
2019-04-08Q1914000006ND
2020-03-23Q2012183003ND
2020-05-21Q2020369001ND
2020-12-17Q2050083008ND
2020-12-17Q2050083006ND
2021-11-09Q2131359012ND
2021-11-09Q2131359014ND
2021-11-09Q2131359016ND
2022-12-13Q2237298001ND
2022-12-13Q2237298003ND
2022-12-13Q2237298005ND
2023-03-20Q2310465003ND
2023-05-23Q2319409005ND
2023-05-23Q2319409007ND