p-Dichlorobenzene
Ringwood Water Department
NOTE: Ringwood Water Department purchases water from Passaic Valley Water Commission which is required to test for p-dichlorobenzene. Sample information shown below was taken by Passaic Valley Water Commission.
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 | 3 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 1 | 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: Ringwood Water Department purchases water from Passaic Valley Water Commission which is required to test for p-dichlorobenzene. Sample information shown below was taken by Passaic Valley Water Commission.
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-03 | AC05714HZ | ND |
| 2018-04-03 | JC64162-1 | ND |
| 2018-07-11 | AC13282HZ | ND |
| 2018-10-03 | AC17084HZ | ND |
| 2019-01-02 | AC20580HZ | ND |
| 2019-04-10 | AC25044HZ | ND |
| 2019-07-03 | AC28785HZ | ND |
| 2019-10-02 | AC33219HZ | ND |
| 2020-01-08 | AC37301HZ | ND |
| 2020-04-01 | AC40801HZ | ND |
| 2020-07-01 | AC44467HZ | ND |
| 2020-10-07 | AC48494HZ | ND |
| 2021-01-06 | AC51904HZ | ND |
| 2021-04-07 | AC55371HZ | ND |
| 2021-07-07 | AC59006HZ | ND |
| 2021-10-06 | AC63608HZ | ND |
| 2022-01-05 | AC67073HZ | ND |
| 2022-04-06 | AC70562HZ | ND |
| 2022-07-06 | AC74369HZ | ND |
| 2022-10-06 | AC78224HZ | ND |
| 2023-01-04 | AC82218HZ | ND |
| 2023-04-05 | 23D0288-01 | ND |
| 2023-07-05 | AC89750HZ | ND |
| 2023-10-04 | AC93846HZ | ND |