p-Dichlorobenzene
Bullock Pen Water 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 4 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 0 | ND |
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 |
---|---|---|
2014-03-17 | 4032041-01 | ND |
2014-04-21 | 4042445-01 | ND |
2014-07-21 | 4071373-01 | ND |
2014-10-20 | 4102341-01 | ND |
2015-02-23 | 5022560-01 | ND |
2015-04-20 | 5042963-01 | ND |
2015-07-20 | 5073210-01 | ND |
2015-10-19 | 5102696-01 | ND |
2016-01-18 | 6012574-01 | ND |
2016-04-18 | 6042551-01 | ND |
2016-07-18 | 6072775-01 | ND |
2016-12-19 | 6122584-01 | ND |
2017-10-16 | 7100166-01 | ND |
2018-10-15 | 8100228-01 | ND |
2019-10-21 | 9103477-01 | ND |