p-Dichlorobenzene
Golden State Water Company (GSWC) -Willowbrook
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 |
---|---|---|
2014-02-05 | 2706-001-1130 | ND |
2014-02-05 | 2706-003-1145 | ND |
2015-02-02 | 2706-001-0943 | ND |
2015-02-02 | 2706-003-0915 | ND |
2016-02-02 | 2706-001-0905 | ND |
2016-02-02 | 2706-003-0906 | ND |
2017-02-08 | 9590-001-1345 | ND |
2017-02-08 | 9590-003-1351 | ND |
2018-02-06 | 9590-001-1220 | ND |
2018-02-06 | 9590-003-1230 | ND |
2019-02-12 | 9590-001-1000 | ND |
2019-02-12 | 9590-003-1002 | ND |