p-Dichlorobenzene
City of Brady 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 | 4 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 7 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 7 | 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 |
|---|---|---|
| 2014-02-20 | AC44029 | ND |
| 2014-02-20 | AC44031 | ND |
| 2014-07-09 | AC59295 | ND |
| 2014-07-09 | AC59297 | ND |
| 2015-06-09 | AC95178 | ND |
| 2015-06-09 | AC95180 | ND |
| 2015-08-10 | AD03319 | ND |
| 2016-01-25 | AD19719 | ND |
| 2016-01-25 | AD19731 | ND |
| 2016-01-25 | AD19681 | ND |
| 2016-01-25 | AD19729 | ND |
| 2016-01-25 | AD19717 | ND |
| 2016-04-26 | AD34234 | ND |
| 2016-07-14 | AD44279 | ND |
| 2017-03-02 | AD73162 | ND |
| 2017-04-25 | AD80972 | ND |
| 2017-08-01 | AD91827 | ND |
| 2018-02-20 | AE14781 | ND |
| 2018-02-20 | AE14767 | ND |
| 2018-08-01 | AE35602 | ND |
| 2019-02-20 | AE55322 | ND |
| 2019-02-20 | AE55316 | ND |
| 2019-02-20 | AE55314 | ND |
| 2019-02-20 | AE55320 | ND |
| 2019-04-15 | AE62548 | ND |
| 2019-04-15 | AE62550 | ND |
| 2019-07-15 | AE74670 | ND |