p-Dichlorobenzene
Wee Wood Park
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 | 10 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 3 | 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 |
|---|---|---|
| 2018-02-22 | POCS 2018 WEE WOOD | ND |
| 2018-02-27 | Q1 18 RAW POCS WEE W | ND |
| 2018-02-27 | Q1 18 TRT POCS WEE W | ND |
| 2018-03-29 | POCS 18 WEE WOOD RES | ND |
| 2018-05-10 | Q2 18 TRT POCS WEE W | ND |
| 2018-05-10 | Q2 18 RAW POCS WEE W | ND |
| 2018-09-25 | Q3 18 TRT POCS WEE W | ND |
| 2018-09-25 | Q3 18 RAW POCS WEE W | ND |
| 2018-11-27 | Q4 18 RAW POCS WEE W | ND |
| 2018-11-27 | Q4 18 TRT POCS WEE W | ND |
| 2019-02-19 | Q1 19 TRT POCS WEE W | ND |
| 2019-02-19 | Q1 19 RAW POCS WEE W | ND |
| 2019-05-28 | Q2 19 TRT POCS WEE W | ND |
| 2019-07-24 | Q3 19 POCS WEE WOOD | ND |
| 2019-10-03 | Q4 19 POCS WEE WOOD | ND |
| 2020-02-19 | Q1 20 POCS WEE WOOD | ND |
| 2020-04-14 | Q2 20 POCS WEE WOOD | ND |
| 2020-08-04 | Q3 20 POCS WEE WOOD | ND |
| 2020-12-08 | Q4 20 POCS WEE WOOD | ND |
| 2021-02-09 | Q1 21 POCS WEE WOOD | ND |
| 2021-05-18 | Q2 21 POCS WEE WOOD | ND |
| 2021-08-23 | POCS 21 WEE WOOD | ND |
| 2021-09-07 | Q3 21 POCS WEE WOOD | ND |
| 2021-10-19 | Q4 21 POCS WEE WOOD | ND |
| 2022-03-22 | Q1 22 POCS WEE WOOD | ND |
| 2022-05-17 | Q2 22 POCS WEE WOOD | ND |
| 2022-11-01 | Q4 22 POCS WEEWOOD | ND |
| 2023-02-14 | Q1 23 POCS WEEWOOD | ND |
| 2023-04-04 | Q2 23 POCS WEEWOOD | ND |
| 2023-07-11 | Q3 23 POCS WEEWOOD | ND |
| 2023-10-10 | Q4 23 POCS WEEWOOD | ND |