p-Dichlorobenzene
California Water Service Co-leona Valley
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 | 10 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 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 |
|---|---|---|
| 2014-01-21 | 5701-008-1129 | ND |
| 2014-02-18 | 5701-006-1123 | ND |
| 2014-02-18 | 5701-001-1113 | ND |
| 2014-05-27 | 5701-006-1215 | ND |
| 2014-05-27 | 5701-001-1212 | ND |
| 2014-08-25 | 5701-008-1025 | ND |
| 2014-08-25 | 5701-006-1055 | ND |
| 2014-08-25 | 5701-001-1040 | ND |
| 2014-11-18 | 5701-006-1130 | ND |
| 2014-11-18 | 5701-001-1124 | ND |
| 2015-01-20 | 5701-008-1108 | ND |
| 2015-02-17 | 5701-001-1116 | ND |
| 2015-02-17 | 5701-006-1128 | ND |
| 2015-05-19 | 5701-001-1028 | ND |
| 2015-05-19 | 5701-006-1021 | ND |
| 2015-08-18 | 5701-008-1055 | ND |
| 2016-01-19 | 5701-008-1500 | ND |
| 2016-05-24 | 5701-001-1244 | ND |
| 2016-05-24 | 5701-006-1238 | ND |
| 2016-08-03 | 9590-008-1045 | ND |
| 2017-01-24 | 5701-008-1506 | ND |
| 2017-05-02 | 5701-006-1241 | ND |
| 2017-05-02 | 5701-001-1245 | ND |
| 2017-08-22 | 5701-008-1525 | ND |
| 2018-01-09 | 5701-008-1108 | ND |
| 2018-05-15 | 5701-006-1038 | ND |
| 2018-05-15 | 5701-001-1052 | ND |
| 2018-08-21 | 5701-008-1337 | ND |
| 2019-01-22 | 5810-008-1125 | ND |
| 2019-08-20 | 5701-008-0839 | ND |
| 2019-10-15 | 5701-001-1500 | ND |