p-Dichlorobenzene
Notla Water Authority
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 | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-06-03 | AI42034 | ND |
| 2015-04-14 | AI74803 | ND |
| 2016-05-04 | AJ11580 | ND |
| 2016-05-04 | AJ11586 | ND |
| 2016-05-04 | AJ11585 | ND |
| 2016-05-04 | AJ11584 | ND |
| 2016-05-04 | AJ11583 | ND |
| 2016-05-04 | AJ11582 | ND |
| 2016-05-04 | AJ11581 | ND |
| 2016-05-04 | AJ11579 | ND |
| 2017-06-19 | AJ57872 | ND |
| 2018-06-06 | AJ90906 | ND |
| 2019-05-15 | AK17594 | ND |
| 2019-05-15 | AK17598 | ND |
| 2019-05-15 | AK17597 | ND |
| 2019-05-15 | AK17596 | ND |
| 2019-05-15 | AK17595 | ND |