p-Dichlorobenzene
Mesa Grande Water Supply Corporation
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 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 |
---|---|---|
2014-12-03 | Q1458233004 | ND |
2014-12-03 | Q1458233006 | ND |
2015-10-22 | Q1541808003 | ND |
2015-10-22 | Q1541808001 | ND |
2016-11-14 | Q1649175001 | ND |
2016-11-14 | Q1649175003 | ND |
2017-12-14 | Q1766132002 | ND |
2017-12-14 | Q1766132003 | ND |
2018-10-01 | Q1838902010 | ND |
2018-10-01 | Q1838902008 | ND |
2019-09-23 | Q1967401003 | ND |
2019-09-23 | Q1967401005 | ND |