p-Dichlorobenzene
Western Cass 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 | 5 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 9 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2018-03-08 | Q1809687004 | ND |
| 2018-03-08 | Q1809687002 | ND |
| 2018-03-08 | Q1809687009 | ND |
| 2018-03-08 | Q1809687007 | ND |
| 2018-03-08 | Q1809687006 | ND |
| 2019-05-02 | Q1918236001 | ND |
| 2019-05-02 | Q1918236003 | ND |
| 2019-05-02 | Q1918236005 | ND |
| 2019-05-02 | Q1918236007 | ND |
| 2019-05-02 | Q1918236009 | ND |
| 2020-03-19 | Q2011997005 | ND |
| 2020-03-19 | Q2011997013 | ND |
| 2020-04-21 | Q2015767011 | ND |
| 2020-04-21 | Q2015767013 | ND |
| 2020-04-21 | Q2015767015 | ND |
| 2020-04-21 | Q2015767017 | ND |
| 2020-04-21 | Q2015767036 | ND |
| 2020-07-28 | Q2029440005 | ND |
| 2020-10-22 | Q2041222005 | ND |
| 2021-10-25 | Q2129911008 | ND |
| 2021-10-25 | Q2129911010 | ND |
| 2021-10-25 | Q2129911012 | ND |
| 2021-10-25 | Q2129911014 | ND |
| 2021-10-25 | Q2129911016 | ND |
| 2021-10-25 | Q2129911006 | ND |
| 2022-04-14 | Q2211593009 | ND |
| 2022-04-14 | Q2211593011 | ND |
| 2022-04-14 | Q2211593007 | ND |
| 2022-04-14 | Q2211593005 | ND |
| 2022-04-14 | Q2211593003 | ND |
| 2022-11-16 | Q2234548001 | ND |
| 2023-08-01 | Q2331111006 | ND |
| 2023-08-01 | Q2331111008 | ND |
| 2023-10-02 | Q2342120007 | ND |
| 2023-10-02 | Q2342120009 | ND |
| 2023-10-02 | Q2342120011 | ND |
| 2023-10-02 | Q2342120013 | ND |