p-Dichlorobenzene
Bois D Arc Municipal Utility 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 |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 10 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-11-05 | Q1844067005 | ND |
| 2018-11-05 | Q1844067003 | ND |
| 2019-09-04 | Q1962033001 | ND |
| 2019-09-04 | Q1962033003 | ND |
| 2020-10-28 | Q2041654010 | ND |
| 2020-10-28 | Q2041654012 | ND |
| 2021-01-26 | Q2101873003 | ND |
| 2021-06-23 | Q2116468008 | ND |
| 2021-06-23 | Q2116468010 | ND |
| 2021-06-30 | Q2117217001 | ND |
| 2021-09-28 | Q2126459003 | ND |
| 2021-09-28 | Q2126459005 | ND |
| 2021-09-28 | Q2126459001 | ND |
| 2021-11-29 | Q2133550003 | ND |
| 2021-11-29 | Q2133550008 | ND |
| 2021-11-29 | Q2133550010 | ND |
| 2022-07-05 | Q2218601001 | ND |
| 2022-07-05 | Q2218601003 | ND |
| 2022-07-05 | Q2218601005 | ND |
| 2022-11-22 | Q2235115001 | ND |
| 2023-02-09 | Q2305165002 | ND |
| 2023-06-27 | Q2324655005 | ND |
| 2023-06-27 | Q2324655007 | ND |