p-Dichlorobenzene
Schwenksville Borough 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 | 6 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 8 | 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 |
|---|---|---|
| 2014-03-13 | 140010537 | ND |
| 2014-03-13 | 140010536 | ND |
| 2014-03-13 | 140010540 | ND |
| 2014-03-13 | 140010539 | ND |
| 2014-03-13 | 140010538 | ND |
| 2014-10-07 | 140045435 | ND |
| 2015-02-05 | 12402647 | ND |
| 2015-02-05 | 12402669 | ND |
| 2015-02-05 | 12402692 | ND |
| 2015-02-05 | 12402721 | ND |
| 2015-06-04 | 12883404 | ND |
| 2016-03-03 | 13987033 | ND |
| 2016-03-03 | 13987008 | ND |
| 2016-03-03 | 13986982 | ND |
| 2016-06-02 | 14406539 | ND |
| 2017-01-26 | 15656666 | ND |
| 2017-01-26 | 15656665 | ND |
| 2017-06-01 | 16095930 | ND |
| 2017-12-18 | 17163153 | ND |
| 2017-12-18 | 17163131 | ND |
| 2018-01-31 | 8002367-04 | ND |
| 2018-01-31 | 8002367-01 | ND |
| 2018-01-31 | 8002367-02 | ND |
| 2018-01-31 | 8002367-03 | ND |
| 2018-04-16 | 8010173-01 | ND |
| 2018-05-04 | 8012268-01 | ND |
| 2018-07-16 | 8019952-01 | ND |
| 2018-10-15 | 8029253-01 | ND |
| 2019-02-01 | 9003521-04 | ND |
| 2019-02-01 | 9003521-01 | ND |
| 2019-02-01 | 9003521-02 | ND |
| 2019-02-01 | 9003521-03 | ND |
| 2019-05-01 | 9013602-01 | ND |