p-Dichlorobenzene
Mill River Water District
NOTE: Mill River Water District purchases water from New Castle/Stanwood WD which is required to test for p-dichlorobenzene. Sample information shown below was taken by New Castle/Stanwood WD.
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: Mill River Water District purchases water from New Castle/Stanwood WD which is required to test for p-dichlorobenzene. Sample information shown below was taken by New Castle/Stanwood WD.
| Date | Lab ID | Result |
|---|---|---|
| 2018-09-24 | AU20756-POCS | ND |
| 2018-09-24 | AU20755-POCS | ND |
| 2019-05-31 | 7091708-POCS-NC | ND |
| 2019-11-12 | AV23851-POCS-NC | ND |
| 2020-05-08 | 70130549001-POCS-NC | ND |
| 2020-05-13 | AW08856-POCS | ND |
| 2020-10-21 | AW20413-POCS | ND |
| 2020-10-21 | AW20411-POCS | ND |
| 2020-11-09 | AW21631-POCS-NC | ND |
| 2021-05-27 | AX10204-POCS | ND |
| 2021-09-20 | AX19184-NC-POCS | ND |
| 2021-09-20 | AX19182-NC-POCS | ND |
| 2021-10-13 | AX20798-POCS | ND |
| 2021-10-14 | AX20887-POCS | ND |
| 2022-06-09 | AY09842-POCS | ND |
| 2022-10-24 | AY19123-NC-POCS | ND |
| 2022-10-24 | AY19130-NC-POCS | ND |
| 2022-11-01 | AY19672-POCS | ND |
| 2022-11-01 | AY19670-POCS | ND |
| 2023-06-20 | AZ10986-POCS | ND |
| 2023-10-17 | AZ19196-POCS | ND |
| 2023-10-17 | AZ19198-POCS | ND |
| 2023-10-19 | AZ19387-NC-POCS | ND |
| 2023-10-19 | AZ19384-NC-POCS | ND |