p-Dichlorobenzene
Aqua Pa Perkiomen Township
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 | 5 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 5 | 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 |
|---|---|---|
| 2014-02-04 | AE22408 | ND |
| 2014-02-05 | AE22411 | ND |
| 2014-02-19 | AE23934 | ND |
| 2014-02-19 | AE23933 | ND |
| 2014-02-19 | AE23939 | ND |
| 2015-02-03 | 12404366 | ND |
| 2015-02-03 | 12404387 | ND |
| 2015-02-03 | 12404408 | ND |
| 2015-02-03 | 12404429 | ND |
| 2015-02-03 | 12404450 | ND |
| 2016-01-20 | 13755353 | ND |
| 2016-01-20 | 13755395 | ND |
| 2016-01-20 | 13755374 | ND |
| 2016-01-20 | 13755311 | ND |
| 2016-01-20 | 13755332 | ND |
| 2017-02-21 | 15658849 | ND |
| 2017-03-28 | 15799031 | ND |
| 2017-04-19 | 15941130 | ND |
| 2017-06-21 | 16260404 | ND |
| 2017-12-20 | 17165031 | ND |
| 2018-02-27 | AF76926 | ND |
| 2018-02-27 | AF76923 | ND |
| 2018-02-27 | AF76925 | ND |
| 2018-02-27 | AF76922 | ND |
| 2018-07-19 | AF90332 | ND |
| 2019-04-24 | AG14547 | ND |
| 2019-04-24 | AG14545 | ND |
| 2019-04-24 | AG14549 | ND |
| 2019-04-24 | AG14552 | ND |
| 2019-05-08 | AG17044 | ND |