p-Dichlorobenzene
Bethel Ash Water Supply Corporation Bethel Plant
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 | 3 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 3 | 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 |
|---|---|---|
| 2014-07-24 | Q1430757009 | ND |
| 2015-01-22 | Q1502407001 | ND |
| 2015-01-22 | Q1502407003 | ND |
| 2015-06-25 | Q1524290001 | ND |
| 2016-02-16 | Q1607039002 | ND |
| 2016-02-16 | AD23695 | ND |
| 2016-03-21 | AD29591 | ND |
| 2016-07-25 | AD45454 | ND |
| 2016-11-07 | Q1647802001 | ND |
| 2017-03-15 | Q1711660004 | ND |
| 2017-05-31 | Q1723094001 | ND |
| 2017-09-05 | Q1741733002 | ND |
| 2018-06-26 | Q1825432001 | ND |
| 2019-03-14 | Q1911007006 | ND |