p-Dichlorobenzene
Canyon Municipal Water 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 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-02-25 | Q1406007010 | ND |
| 2014-02-25 | Q1406007008 | ND |
| 2014-02-25 | Q1406007007 | ND |
| 2014-02-25 | Q1406007004 | ND |
| 2014-08-20 | Q1437974009 | ND |
| 2015-09-16 | Q1536074002 | ND |
| 2015-12-02 | Q1547887009 | ND |
| 2015-12-02 | Q1547887007 | ND |
| 2016-06-09 | Q1623378004 | ND |
| 2016-06-09 | Q1623378002 | ND |
| 2016-11-14 | Q1649341001 | ND |
| 2017-02-09 | Q1705995015 | ND |
| 2017-02-09 | Q1705995011 | ND |
| 2017-05-04 | Q1718620007 | ND |
| 2017-11-14 | Q1758291001 | ND |
| 2018-02-15 | Q1806639007 | ND |
| 2018-02-15 | Q1806639011 | ND |
| 2018-05-17 | Q1820297001 | ND |
| 2019-02-21 | Q1907705002 | ND |
| 2019-05-16 | Q1926296001 | ND |
| 2019-05-16 | Q1926296003 | ND |