p-Dichlorobenzene
East Hempfield Water Authority
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 | 7 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 13 | 0 | ND |
| 2018 | ND | 5 | 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 |
|---|---|---|
| 2014-09-30 | 14032956-01 | ND |
| 2014-09-30 | 14032956-02 | ND |
| 2014-09-30 | 14032956-03 | ND |
| 2014-09-30 | 14032956-04 | ND |
| 2014-12-29 | 14122146-01 | ND |
| 2014-12-29 | 14122146-02 | ND |
| 2014-12-29 | 14122146-03 | ND |
| 2015-09-15 | 13360707 | ND |
| 2015-09-15 | 13360728 | ND |
| 2015-09-15 | 13360686 | ND |
| 2015-09-15 | 13360749 | ND |
| 2016-12-27 | 15481334 | ND |
| 2016-12-27 | 15481313 | ND |
| 2016-12-27 | 15481355 | ND |
| 2016-12-27 | 15481292 | ND |
| 2017-03-16 | 15901257 | ND |
| 2017-03-16 | 15901278 | ND |
| 2017-03-16 | 15901506 | ND |
| 2017-03-16 | 15901299 | ND |
| 2017-03-16 | 15901236 | ND |
| 2017-05-23 | 16218714 | ND |
| 2017-05-23 | 16218735 | ND |
| 2017-05-23 | 16218465 | ND |
| 2017-05-23 | 16218444 | ND |
| 2017-08-30 | 16844200 | ND |
| 2017-08-30 | 16844221 | ND |
| 2017-11-15 | 17129202 | ND |
| 2017-11-15 | 17129181 | ND |
| 2018-02-28 | 7104860-01 | ND |
| 2018-06-06 | 8044976-01 | ND |
| 2018-06-06 | 8044976-02 | ND |
| 2018-06-06 | 8044976-03 | ND |
| 2018-11-19 | 8015122-01 | ND |
| 2019-05-20 | 9045072-01 | ND |
| 2019-05-20 | 9045072-02 | ND |
| 2019-05-20 | 9045072-03 | ND |
| 2019-08-21 | 9085002-03 | ND |