p-Dichlorobenzene
Jefferson County Public Water Supply District 6
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 | 8 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 7 | 0 | ND |
| 2018 | ND | 8 | 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 |
|---|---|---|
| 2014-02-05 | AC17713 | ND |
| 2014-04-29 | AC22529 | ND |
| 2014-07-30 | AC30081 | ND |
| 2014-08-27 | AC33816 | ND |
| 2014-08-27 | AC33817 | ND |
| 2014-08-27 | AC33818 | ND |
| 2014-08-27 | AC33819 | ND |
| 2014-12-23 | AC37328 | ND |
| 2015-02-02 | AC41372 | ND |
| 2015-05-11 | AC50694 | ND |
| 2015-08-03 | AC55478 | ND |
| 2015-11-03 | AC62089 | ND |
| 2016-02-01 | AC65846 | ND |
| 2016-04-28 | AC70179 | ND |
| 2016-08-03 | AC80850 | ND |
| 2016-10-20 | AC86080 | ND |
| 2017-01-23 | AC89910 | ND |
| 2017-04-25 | AC95147 | ND |
| 2017-07-25 | AD02418 | ND |
| 2017-08-29 | AD04370 | ND |
| 2017-08-29 | AD04368 | ND |
| 2017-08-29 | AD04369 | ND |
| 2017-10-27 | AD08625 | ND |
| 2018-01-23 | AD12096 | ND |
| 2018-05-08 | AD18748 | ND |
| 2018-05-08 | AD18749 | ND |
| 2018-06-25 | AD28043 | ND |
| 2018-06-25 | AD28042 | ND |
| 2018-07-13 | AD29649 | ND |
| 2018-07-13 | AD29650 | ND |
| 2018-10-18 | AD35206 | ND |
| 2019-01-15 | AD38514 | ND |
| 2019-04-17 | AD46854 | ND |
| 2019-07-18 | AD52848 | ND |
| 2019-10-23 | AD57537 | ND |