p-Dichlorobenzene
Lake Hemet Municipal Water District
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 | 3 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 15 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 9 | 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 |
|---|---|---|
| 2014-06-25 | 4790-050-1100 | ND |
| 2014-10-15 | 4790-050-0800 | ND |
| 2014-12-15 | 4790-050-1015 | ND |
| 2016-03-08 | 3761-036-1155 | ND |
| 2016-04-25 | 3761-011-0920 | ND |
| 2016-04-25 | 3761-050-0815 | ND |
| 2016-04-25 | 3761-014-0905 | ND |
| 2016-04-25 | 3761-018-0845 | ND |
| 2016-04-25 | 3761-019-0830 | ND |
| 2016-04-25 | 3761-029-0930 | ND |
| 2016-06-01 | 3761-012-0920 | ND |
| 2016-06-08 | 3761-003-0955 | ND |
| 2016-06-15 | 3761-028-0910 | ND |
| 2016-06-21 | 3761-032-1400 | ND |
| 2016-08-08 | 3761-030-1000 | ND |
| 2016-08-08 | 3761-050-0840 | ND |
| 2016-11-09 | 3761-050-0830 | ND |
| 2016-12-14 | 3761-050-0815 | ND |
| 2017-03-15 | 3761-050-0855 | ND |
| 2017-06-07 | 3761-050-0835 | ND |
| 2018-09-12 | 3761-050-0925 | ND |
| 2019-03-06 | 3761-036-0900 | ND |
| 2019-04-10 | 3761-019-0830 | ND |
| 2019-04-17 | 3761-018-0835 | ND |
| 2019-04-17 | 3761-014-0800 | ND |
| 2019-06-12 | 3761-032-0935 | ND |
| 2019-06-12 | 3761-012-0915 | ND |
| 2019-06-26 | 3761-003-1015 | ND |
| 2019-06-27 | 3761-028-0750 | ND |
| 2019-08-21 | 3761-030-0900 | ND |