p-Dichlorobenzene
Stratford Waterworks
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 | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 5 | 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 |
|---|---|---|
| 2014-02-19 | 771218 | ND |
| 2014-02-19 | 771212 | ND |
| 2014-02-19 | 771216 | ND |
| 2014-02-19 | 771210 | ND |
| 2014-02-19 | 771214 | ND |
| 2015-03-09 | 847084 | ND |
| 2016-04-05 | 913871 | ND |
| 2017-08-21 | 1012738 | ND |
| 2017-08-23 | 1013442 | ND |
| 2017-08-23 | 1013445 | ND |
| 2017-08-23 | 1013446 | ND |
| 2017-08-23 | 1013447 | ND |
| 2018-09-17 | 1080721 | ND |
| 2019-07-15 | 1134354 | ND |