p-Dichlorobenzene
California Water Service (CWS) - Selma
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 | 2 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-02-19 | 5701-038-1330 | ND |
| 2014-04-16 | 5701-013-0926 | ND |
| 2014-04-16 | 5701-005-0908 | ND |
| 2014-10-21 | 5701-014-1053 | ND |
| 2015-01-27 | 5701-021-0959 | ND |
| 2015-10-20 | 9590-004-1110 | ND |
| 2016-04-19 | 5701-023-0956 | ND |
| 2016-04-19 | 5701-018-1020 | ND |
| 2016-07-26 | 5701-001-0914 | ND |
| 2016-07-26 | 5701-022-0941 | ND |
| 2016-09-27 | 5701-036-1010 | ND |
| 2016-11-09 | 5701-010-1030 | ND |
| 2017-03-07 | 5810-038-1041 | ND |
| 2017-04-11 | 5701-005-1030 | ND |
| 2017-04-11 | 5701-013-1046 | ND |
| 2017-10-24 | 5701-014-1122 | ND |
| 2018-01-23 | 5701-021-0908 | ND |
| 2018-10-16 | 5810-004-0947 | ND |
| 2019-04-23 | 5701-018-1100 | ND |
| 2019-04-23 | 5701-023-1046 | ND |
| 2019-07-17 | 5701-022-0943 | ND |
| 2019-10-08 | 5701-018-1105 | ND |
| 2019-10-08 | 5701-023-1048 | ND |
| 2019-10-17 | 5701-010-1051 | ND |
| 2019-10-21 | 5701-036-1030 | ND |