p-Dichlorobenzene
Maywood Mutual Water Company #3
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 | 6 | 0 | ND |
| 2015 | ND | 5 | 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 |
|---|---|---|
| 2014-01-24 | 9588-009-1340 | ND |
| 2014-01-24 | 9588-004-1412 | ND |
| 2014-04-22 | 9588-004-0913 | ND |
| 2014-07-17 | 9588-004-1010 | ND |
| 2014-11-25 | 9588-009-1445 | ND |
| 2014-12-10 | 9588-004-0924 | ND |
| 2015-01-27 | 9588-004-0943 | ND |
| 2015-01-27 | 9588-009-0930 | ND |
| 2015-04-07 | 9588-004-1212 | ND |
| 2015-07-28 | 9588-004-0942 | ND |
| 2015-10-27 | 9588-004-0947 | ND |
| 2016-03-23 | 9588-004-1014 | ND |
| 2016-03-23 | 9588-009-1027 | ND |
| 2016-05-04 | 9588-004-1010 | ND |
| 2016-05-04 | 9588-009-0952 | ND |
| 2016-08-16 | 9588-004-0951 | ND |
| 2016-10-11 | 9588-004-1010 | ND |
| 2017-01-13 | 9588-004-0940 | ND |
| 2017-01-13 | 9588-009-0955 | ND |
| 2017-04-05 | 9588-004-0930 | ND |
| 2017-07-11 | 9588-004-0946 | ND |
| 2017-10-12 | 9588-004-0935 | ND |
| 2018-01-25 | 9588-009-0945 | ND |
| 2018-01-25 | 9588-004-0930 | ND |
| 2018-04-10 | 9588-004-0950 | ND |
| 2018-07-27 | 9588-004-0900 | ND |
| 2018-10-30 | 9588-004-0939 | ND |
| 2019-01-29 | 9588-004-1030 | ND |
| 2019-01-29 | 9588-009-0940 | ND |
| 2019-05-03 | 9588-004-0910 | ND |
| 2019-07-16 | 9588-004-0945 | ND |
| 2019-10-29 | 9588-004-1020 | ND |