p-Dichlorobenzene
Ephrata Area Joint Authority
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 | 5 | 0 | ND |
| 2020 | ND | 9 | 0 | ND |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 10 | 0 | ND |
| 2023 | ND | 10 | 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 |
|---|---|---|
| 2018-01-04 | 7020609-01 | ND |
| 2018-01-05 | 8000628-01 | ND |
| 2018-04-09 | 8007939-01 | ND |
| 2018-07-15 | 8020415-01 | ND |
| 2018-10-01 | 8028440-01 | ND |
| 2019-01-02 | 8018023-01 | ND |
| 2019-01-08 | 9000133-01 | ND |
| 2019-04-02 | 7004831-01 | ND |
| 2019-07-02 | 7011943-01 | ND |
| 2019-10-07 | 9035881-01 | ND |
| 2020-01-03 | 21627533.00 | ND |
| 2020-04-06 | 22168752.00 | ND |
| 2020-04-13 | 22168809.00 | ND |
| 2020-04-13 | 22168808.00 | ND |
| 2020-07-13 | 22753760.00 | ND |
| 2020-07-17 | 22753837.00 | ND |
| 2020-07-21 | 22753838.00 | ND |
| 2020-10-07 | 23319888.00 | ND |
| 2020-10-14 | 23319969.00 | ND |
| 2021-02-12 | 24015882.00 | ND |
| 2021-02-26 | 24015911.00 | ND |
| 2021-04-08 | 24201061.00 | ND |
| 2021-04-14 | 24390928.00 | ND |
| 2021-07-01 | 24976244.00 | ND |
| 2021-07-01 | 24976245.00 | ND |
| 2021-07-16 | 24976356.00 | ND |
| 2021-10-05 | 25545665.00 | ND |
| 2021-10-08 | 25545732.00 | ND |
| 2022-01-05 | 26077516.00 | ND |
| 2022-01-31 | 26077716.00 | ND |
| 2022-02-08 | 26247117.00 | ND |
| 2022-04-04 | 26604672.00 | ND |
| 2022-04-05 | 26604704.00 | ND |
| 2022-07-11 | 27188746.00 | ND |
| 2022-07-12 | 27188826.00 | ND |
| 2022-07-22 | 27188985.00 | ND |
| 2022-10-10 | 27782897.00 | ND |
| 2022-10-25 | 27782950.00 | ND |
| 2023-01-09 | 28307557.00 | ND |
| 2023-01-24 | 28307789.00 | ND |
| 2023-01-24 | 28307811.00 | ND |
| 2023-04-14 | 28855578.00 | ND |
| 2023-04-14 | 28855577.00 | ND |
| 2023-07-11 | 29451548.00 | ND |
| 2023-07-18 | 29451607.00 | ND |
| 2023-08-29 | 29654936.00 | ND |
| 2023-10-31 | 30028773.00 | ND |
| 2023-10-31 | 30028772.00 | ND |