p-Dichlorobenzene
Falfurrias Utility Board
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 | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-02-12 | AE13326 | ND |
| 2018-02-12 | AE13324 | ND |
| 2018-06-14 | AE30042 | ND |
| 2018-06-14 | AE30050 | ND |
| 2018-11-05 | AE45241 | ND |
| 2019-02-25 | AE55655 | ND |
| 2019-02-25 | AE55661 | ND |
| 2019-07-08 | AE73478 | ND |
| 2019-07-08 | AE73480 | ND |
| 2020-02-10 | AE97893 | ND |
| 2020-08-17 | AF23863 | ND |
| 2020-08-17 | AF23865 | ND |
| 2020-08-17 | AF23867 | ND |
| 2021-08-13 | AF66426 | ND |
| 2021-11-10 | AF76428 | ND |
| 2021-11-10 | AF76440 | ND |
| 2021-11-10 | AF76442 | ND |
| 2021-11-10 | AF76444 | ND |
| 2022-01-28 | AF82603 | ND |
| 2022-05-09 | AF96764 | ND |
| 2022-05-09 | AF96766 | ND |
| 2022-06-30 | AG03063 | ND |
| 2023-01-23 | AG25736 | ND |
| 2023-01-23 | AG25740 | ND |
| 2023-04-12 | AG36564 | ND |
| 2023-04-12 | AG36566 | ND |