p-Dichlorobenzene
Warminster Municipal Authority
NOTE: Warminster Municipal Authority purchases water from North Wales Water Authority which is required to test for p-dichlorobenzene. Sample information shown below was taken by North Wales Water 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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 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: Warminster Municipal Authority purchases water from North Wales Water Authority which is required to test for p-dichlorobenzene. Sample information shown below was taken by North Wales Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-12 | 20180932 | ND |
| 2018-03-12 | 20180940 | ND |
| 2018-03-12 | 20180939 | ND |
| 2018-03-12 | 20180938 | ND |
| 2018-03-12 | 20180937 | ND |
| 2018-03-12 | 20180936 | ND |
| 2018-03-12 | 20180935 | ND |
| 2018-03-12 | 20180934 | ND |
| 2018-03-12 | 20180933 | ND |
| 2018-03-13 | 20180956 | ND |
| 2018-06-05 | 20182148 | ND |
| 2018-09-04 | 20183373 | ND |
| 2018-12-18 | 20184775 | ND |
| 2019-03-05 | 20190857 | ND |
| 2019-03-12 | 20190960 | ND |
| 2019-03-12 | 20190956 | ND |
| 2019-03-12 | 20190964 | ND |
| 2019-03-12 | 20190957 | ND |
| 2019-03-12 | 20190963 | ND |
| 2019-03-12 | 20190962 | ND |
| 2019-03-12 | 20190958 | ND |
| 2019-03-12 | 20190961 | ND |
| 2019-03-12 | 20190959 | ND |
| 2019-09-03 | 20193443 | ND |
| 2019-12-03 | 20194748 | ND |
| 2020-03-03 | 21849464.00 | ND |
| 2020-03-03 | 21849443.00 | ND |
| 2020-03-03 | 21849422.00 | ND |
| 2020-03-03 | 21849485.00 | ND |
| 2020-03-03 | 21849506.00 | ND |
| 2020-03-03 | 21849527.00 | ND |
| 2020-03-03 | 21849401.00 | ND |
| 2020-03-03 | 21849548.00 | ND |
| 2020-06-02 | 22418577.00 | ND |
| 2020-06-02 | 22418598.00 | ND |
| 2020-09-01 | 23001532.00 | ND |
| 2020-12-01 | 23539406.00 | ND |
| 2021-03-01 | 24062307.00 | ND |
| 2021-03-01 | 24062391.00 | ND |
| 2021-03-01 | 24062265.00 | ND |
| 2021-03-01 | 24062370.00 | ND |
| 2021-03-01 | 24062349.00 | ND |
| 2021-03-01 | 24062328.00 | ND |
| 2021-03-01 | 24062286.00 | ND |
| 2021-03-02 | 24062412.00 | ND |
| 2021-06-01 | 24640225.00 | ND |
| 2021-09-09 | 25222344.00 | ND |
| 2021-12-14 | 25766374.00 | ND |
| 2022-03-01 | 26289328.00 | ND |
| 2022-03-09 | 26289244.00 | ND |
| 2022-03-09 | 26289307.00 | ND |
| 2022-03-09 | 26289286.00 | ND |
| 2022-03-09 | 26289181.00 | ND |
| 2022-03-09 | 26289223.00 | ND |
| 2022-03-09 | 26289202.00 | ND |
| 2022-03-09 | 26289265.00 | ND |
| 2022-06-07 | 26844657.00 | ND |
| 2022-09-20 | 27443449.00 | ND |
| 2022-12-06 | 28000355.00 | ND |
| 2023-03-07 | 28523007.00 | ND |
| 2023-03-08 | 28522944.00 | ND |
| 2023-03-08 | 28522902.00 | ND |
| 2023-03-08 | 28522986.00 | ND |
| 2023-03-08 | 28522965.00 | ND |
| 2023-03-08 | 28522923.00 | ND |
| 2023-06-05 | 29110403.00 | ND |
| 2023-06-19 | 29110352.00 | ND |
| 2023-09-12 | 29701903.00 | ND |
| 2023-11-17 | 30073305.00 | ND |