p-Dichlorobenzene
Garden City Water and Sewer 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 | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 9 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 1 | 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 |
|---|---|---|
| 2014-05-21 | V1418260 | ND |
| 2015-05-28 | V1520664 | ND |
| 2016-05-26 | V1622949 | ND |
| 2016-05-26 | V1622899 | ND |
| 2016-05-26 | V1622901 | ND |
| 2016-05-26 | V1622947 | ND |
| 2016-05-26 | V1622903 | ND |
| 2016-05-27 | V1623033 | ND |
| 2016-05-27 | V1623037 | ND |
| 2016-08-09 | V1635724 | ND |
| 2016-11-10 | V1651744 | ND |
| 2017-02-13 | V1705738 | ND |
| 2017-05-10 | V1719304 | ND |
| 2017-05-17 | V1720632 | ND |
| 2017-07-12 | V1730455 | ND |
| 2017-10-02 | V1745702 | ND |
| 2018-07-17 | V1833625 | ND |
| 2019-07-08 | V1932683 | ND |
| 2019-07-09 | V1932998 | ND |
| 2019-07-09 | V1932995 | ND |