p-Dichlorobenzene
Upper Hanover 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 | 4 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 6 | 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 |
---|---|---|
2014-03-12 | 140010201 | ND |
2014-03-12 | 140010202 | ND |
2014-03-12 | 140010203 | ND |
2014-03-12 | 140010200 | ND |
2015-02-18 | 12402276 | ND |
2015-02-18 | 12402297 | ND |
2015-03-04 | 12516086 | ND |
2016-02-03 | 13753523 | ND |
2016-02-03 | 13753481 | ND |
2016-02-03 | 13753502 | ND |
2017-09-26 | 16727604 | ND |
2017-09-26 | 16727603 | ND |
2017-09-26 | 16727602 | ND |
2017-09-26 | 16727601 | ND |
2017-11-22 | 17024142 | ND |
2018-01-30 | 8001978-01 | ND |
2018-04-25 | 8008140-01 | ND |
2018-07-17 | 8017906-01 | ND |
2018-07-25 | 8019752-01 | ND |
2018-07-25 | 8019752-02 | ND |
2018-10-10 | 8028641-01 | ND |
2019-01-23 | 8038660-01 | ND |
2019-05-07 | 9009685-01 | ND |
2019-08-21 | 8038658-01 | ND |
2019-09-24 | 9034252-01 | ND |
2019-12-11 | 9033962-01 | ND |