p-Dichlorobenzene
Verona Water Department
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 5 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-03-11 | 4030283-02 | ND |
| 2014-04-25 | 4040771-04 | ND |
| 2014-04-25 | 4040771-02 | ND |
| 2014-08-06 | 4080178-02 | ND |
| 2014-11-05 | 4110103-03 | ND |
| 2015-03-09 | 5030204-02 | ND |
| 2015-04-08 | 5040234-02 | ND |
| 2015-08-13 | 5080425-02 | ND |
| 2015-11-06 | 5110241-02 | ND |
| 2016-03-23 | 6030831-02 | ND |
| 2016-05-12 | 6050472-02 | ND |
| 2016-08-03 | 6080165-02 | ND |
| 2016-12-07 | 6120297-02 | ND |
| 2017-02-08 | 7020311-02 | ND |
| 2017-05-08 | 7050318-02 | ND |
| 2017-08-11 | 7080475-03 | ND |
| 2017-08-11 | 7080475-01 | ND |
| 2017-11-30 | 7120012-02 | ND |
| 2018-02-09 | 8020285-02 | ND |
| 2019-03-29 | 9031220-02 | ND |
| 2019-05-30 | 9051313-03 | ND |
| 2019-08-14 | 9080681-03 | ND |
| 2019-12-11 | 9120473-03 | ND |