p-Dichlorobenzene
City of Oakdale
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2015-07-22 | 5810-011-1000 | ND |
| 2015-12-29 | 5810-013-1300 | ND |
| 2016-07-20 | 5810-007-1034 | ND |
| 2016-07-20 | 5810-008-0857 | ND |
| 2016-07-20 | 5810-009-0835 | ND |
| 2016-07-20 | 5810-010-1102 | ND |
| 2016-07-20 | 5810-005-0957 | ND |
| 2018-07-12 | 5810-011-1331 | ND |
| 2018-07-17 | 5810-013-0930 | ND |
| 2018-11-02 | 5810-013-1525 | ND |
| 2019-01-07 | 5810-013-1100 | ND |
| 2019-04-09 | 5810-013-1050 | ND |
| 2019-07-15 | 5810-010-1200 | ND |
| 2019-07-15 | 5810-009-0930 | ND |
| 2019-07-15 | 5810-008-0957 | ND |
| 2019-07-15 | 5810-007-1147 | ND |
| 2019-07-15 | 5810-005-1111 | ND |
| 2019-12-18 | 5810-012-1044 | ND |