p-Dichlorobenzene
Nash Forreston Water Supply Corporation
NOTE: Nash Forreston Water Supply Corporation purchases water from City of Waxahachie which is required to test for p-dichlorobenzene. Sample information shown below was taken by City of Waxahachie.
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 | 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
NOTE: Nash Forreston Water Supply Corporation purchases water from City of Waxahachie which is required to test for p-dichlorobenzene. Sample information shown below was taken by City of Waxahachie.
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-25 | Q1802982010 | ND |
| 2018-08-13 | Q1832216003 | ND |
| 2019-04-29 | Q1916965011 | ND |
| 2019-07-25 | Q1947719001 | ND |
| 2020-08-17 | Q2032738017 | ND |
| 2020-08-17 | Q2032738019 | ND |
| 2021-09-16 | Q2125453010 | ND |
| 2021-09-16 | Q2125453012 | ND |
| 2022-01-12 | Q2201052009 | ND |
| 2022-08-16 | Q2224047002 | ND |
| 2023-09-05 | Q2338122002 | ND |
| 2023-11-20 | Q2349758003 | ND |