p-Dichlorobenzene
Miller Grove Water Supply Corporation
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 |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-04-12 | Q1815139002 | ND |
| 2018-04-12 | Q1815139009 | ND |
| 2019-05-13 | Q1923868005 | ND |
| 2019-05-13 | Q1923868007 | ND |
| 2020-05-26 | Q2020632001 | ND |
| 2020-05-26 | Q2020632009 | ND |
| 2020-07-21 | Q2028843003 | ND |
| 2021-11-03 | Q2130890001 | ND |
| 2021-11-03 | Q2130890003 | ND |
| 2022-02-16 | Q2205791003 | ND |
| 2022-02-16 | Q2205791005 | ND |
| 2023-07-18 | Q2327997006 | ND |
| 2023-07-18 | Q2327997008 | ND |