Know Your Environment. Protect Your Health.

p-Dichlorobenzene

Madera Valley 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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
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
2018-07-18Q1828958012ND
2018-07-18Q1828958014ND
2018-07-18Q1828958010ND
2019-06-20Q1938291004ND
2019-06-20Q1938291006ND
2019-06-20Q1938291008ND
2020-08-17Q2033215001ND
2020-08-17Q2033215003ND
2020-08-17Q2033215005ND
2020-12-02Q2048267001ND
2021-03-15Q2106895001ND
2021-03-15Q2106895003ND
2021-09-13Q2125100003ND
2022-02-07Q2204392003ND
2022-02-07Q2204392005ND
2022-08-31Q2225814003ND
2023-04-20Q2314887001ND
2023-04-20Q2314887003ND
2023-08-30Q2337553001ND