p-Dichlorobenzene
Aqua Pa Superior Main System
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 | N/A | 0 | 0 | N/A |
2016 | ND | 7 | 0 | ND |
2017 | ND | 8 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-10-02 | 2032470002 | ND |
2014-10-02 | 2032470001 | ND |
2014-10-02 | 2032470004 | ND |
2014-10-02 | 2032470005 | ND |
2014-10-02 | 2032470003 | ND |
2016-09-06 | 14913023 | ND |
2016-09-08 | 14912903 | ND |
2016-09-08 | 14912924 | ND |
2016-09-08 | 14912945 | ND |
2016-09-08 | 14912966 | ND |
2016-09-08 | 14912987 | ND |
2016-11-03 | 15230802 | ND |
2017-02-22 | 15660470 | ND |
2017-04-26 | 15942792 | ND |
2017-04-26 | 15942813 | ND |
2017-04-26 | 15942771 | ND |
2017-04-26 | 15942750 | ND |
2017-04-26 | 15942729 | ND |
2017-04-26 | 15942708 | ND |
2017-08-10 | 16571410 | ND |
2018-03-14 | AF78842 | ND |
2018-05-29 | AF85267 | ND |
2018-07-31 | AF91266 | ND |
2018-08-09 | AF92390 | ND |
2019-08-08 | AG27413 | ND |
2019-08-08 | AG27411 | ND |