p-Dichlorobenzene
California Water Service Company - Dixon
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 | 5 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-01-30 | 5701-007-1026 | ND |
2014-02-18 | 5701-008-1150 | ND |
2014-05-20 | 5701-017-1417 | ND |
2014-12-03 | 5701-002-1405 | ND |
2014-12-30 | 5810-004-1430 | ND |
2015-02-18 | 5701-006-0900 | ND |
2016-03-16 | 5701-002-1035 | ND |
2016-05-19 | 5701-017-1025 | ND |
2016-06-13 | 9590-020-1700 | ND |
2016-12-07 | 5810-002-1347 | ND |
2017-01-30 | 5701-002-0919 | ND |
2017-02-28 | 5701-008-0951 | ND |
2017-05-03 | 5701-017-1505 | ND |
2018-05-08 | 5701-017-1434 | ND |
2019-05-20 | 5701-017-1054 | ND |