p-Dichlorobenzene
Western Cass Water Supply Corporation
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 | 9 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 5 | 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 |
|---|---|---|
| 2014-07-23 | Q1430392008 | ND |
| 2015-05-07 | Q1516885009 | ND |
| 2015-05-07 | Q1516885007 | ND |
| 2015-05-07 | Q1516885006 | ND |
| 2015-05-07 | Q1516885003 | ND |
| 2015-05-07 | Q1516885001 | ND |
| 2015-09-15 | Q1535745004 | ND |
| 2015-09-15 | Q1535745002 | ND |
| 2015-12-09 | Q1549101004 | ND |
| 2015-12-09 | Q1549101002 | ND |
| 2016-05-24 | Q1620338020 | ND |
| 2016-05-24 | Q1620338008 | ND |
| 2016-05-24 | Q1620338005 | ND |
| 2016-05-24 | Q1620338004 | ND |
| 2016-05-24 | Q1620338001 | ND |
| 2016-09-16 | Q1638625002 | ND |
| 2017-08-28 | Q1739001014 | ND |
| 2017-08-28 | Q1739001035 | ND |
| 2017-08-28 | Q1739001018 | ND |
| 2017-08-28 | Q1739001013 | ND |
| 2017-08-28 | Q1739001016 | ND |
| 2018-03-08 | Q1809687009 | ND |
| 2018-03-08 | Q1809687007 | ND |
| 2018-03-08 | Q1809687006 | ND |
| 2018-03-08 | Q1809687004 | ND |
| 2018-03-08 | Q1809687002 | ND |
| 2019-05-02 | Q1918236001 | ND |
| 2019-05-02 | Q1918236009 | ND |
| 2019-05-02 | Q1918236007 | ND |
| 2019-05-02 | Q1918236005 | ND |
| 2019-05-02 | Q1918236003 | ND |