p-Dichlorobenzene
City of Moses Lake
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 | 7 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 19 | 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 |
|---|---|---|
| 2018-01-31 | ND | |
| 2018-04-03 | ND | |
| 2018-06-28 | ND | |
| 2018-09-11 | ND | |
| 2018-11-06 | ND | |
| 2019-03-26 | ND | |
| 2019-07-09 | ND | |
| 2019-07-29 | ND | |
| 2019-10-01 | ND | |
| 2019-11-12 | ND | |
| 2019-11-12 | ND | |
| 2019-12-03 | ND | |
| 2021-01-11 | 4063010 | ND |
| 2021-06-14 | 4130306 | ND |
| 2021-07-27 | 4149446 | ND |
| 2021-09-01 | 4178894 | ND |
| 2021-10-06 | 4188764 | ND |
| 2021-11-08 | 4203458 | ND |
| 2022-03-10 | 4258470 | ND |
| 2022-03-10 | 4258471 | ND |
| 2022-03-10 | 4258475 | ND |
| 2022-03-15 | 4258473 | ND |
| 2022-03-22 | 4263834 | ND |
| 2022-03-22 | 4266305 | ND |
| 2022-03-22 | 4266303 | ND |
| 2022-03-22 | 4266301 | ND |
| 2022-03-22 | 4266308 | ND |
| 2022-03-22 | 4266307 | ND |
| 2022-03-22 | 4266306 | ND |
| 2022-03-22 | 4266304 | ND |
| 2022-03-22 | 4266302 | ND |
| 2022-04-18 | 4274610 | ND |
| 2022-06-06 | 4298852 | ND |
| 2022-06-13 | 4298844 | ND |
| 2022-09-12 | 4338140 | ND |
| 2022-09-12 | 4338139 | ND |
| 2022-10-06 | 4356370 | ND |
| 2023-06-21 | 4480386 | ND |
| 2023-06-21 | 4481116 | ND |
| 2023-06-21 | 4480385 | ND |
| 2023-06-21 | 4480387 | ND |
| 2023-09-13 | 4512967 | ND |
| 2023-09-13 | 4512968 | ND |