p-Dichlorobenzene
Elkhorn Waterworks
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 | 2 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 2 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 5 | 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 |
---|---|---|
2014-09-10 | 816994 | ND |
2014-09-10 | 816993 | ND |
2017-09-20 | 1019684 | ND |
2017-09-20 | 1019680 | ND |
2018-03-21 | 1046561 | ND |
2018-06-20 | 1062798 | ND |
2018-06-20 | 1062801 | ND |
2018-06-27 | 1064399 | ND |
2019-03-13 | 1109563 | ND |
2019-06-19 | 1129508 | ND |
2019-09-18 | 1149589 | ND |
2019-09-18 | 1149591 | ND |
2019-12-18 | 1166313 | ND |