p-Dichlorobenzene
North Penn 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 | 48 | 0 | ND |
| 2019 | ND | 45 | 0 | ND |
| 2020 | ND | 49 | 0 | ND |
| 2021 | ND | 38 | 0 | ND |
| 2022 | ND | 26 | 0 | ND |
| 2023 | ND | 18 | 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 |
|---|---|---|
| 2018-01-22 | 20180293 | ND |
| 2018-01-22 | 20180294 | ND |
| 2018-01-22 | 20180295 | ND |
| 2018-01-22 | 20180296 | ND |
| 2018-02-05 | 20180455 | ND |
| 2018-02-05 | 20180456 | ND |
| 2018-02-05 | 20180452 | ND |
| 2018-02-05 | 20180453 | ND |
| 2018-02-05 | 20180454 | ND |
| 2018-02-05 | 20180457 | ND |
| 2018-03-20 | 20181073 | ND |
| 2018-03-20 | 20181074 | ND |
| 2018-03-20 | 20181075 | ND |
| 2018-03-20 | 20181076 | ND |
| 2018-04-16 | 20181445 | ND |
| 2018-04-16 | 20181446 | ND |
| 2018-04-16 | 20181448 | ND |
| 2018-04-16 | 20181447 | ND |
| 2018-05-02 | 20181740 | ND |
| 2018-05-02 | 20181741 | ND |
| 2018-05-02 | 20181744 | ND |
| 2018-05-02 | 20181742 | ND |
| 2018-05-02 | 20181743 | ND |
| 2018-06-18 | 20182322 | ND |
| 2018-06-18 | 20182324 | ND |
| 2018-06-18 | 20182325 | ND |
| 2018-06-18 | 20182323 | ND |
| 2018-06-18 | 20182326 | ND |
| 2018-06-18 | 20182327 | ND |
| 2018-07-16 | 20182699 | ND |
| 2018-07-16 | 20182700 | ND |
| 2018-07-16 | 20182701 | ND |
| 2018-08-01 | 20182922 | ND |
| 2018-08-01 | 20182923 | ND |
| 2018-08-01 | 20182920 | ND |
| 2018-08-01 | 20182921 | ND |
| 2018-08-01 | 20182924 | ND |
| 2018-09-05 | 20183429 | ND |
| 2018-09-05 | 20183431 | ND |
| 2018-09-05 | 20183430 | ND |
| 2018-09-05 | 20183432 | ND |
| 2018-10-15 | 20183924 | ND |
| 2018-10-15 | 20183926 | ND |
| 2018-10-15 | 20183925 | ND |
| 2018-12-03 | 8121626-01 | ND |
| 2018-12-03 | 8121626-03 | ND |
| 2018-12-03 | 8121626-02 | ND |
| 2018-12-10 | 8122542-01 | ND |
| 2019-01-21 | 20190220 | ND |
| 2019-02-04 | 20190410 | ND |
| 2019-02-04 | 20190411 | ND |
| 2019-02-04 | 20190409 | ND |
| 2019-02-04 | 20190412 | ND |
| 2019-02-07 | 20190528 | ND |
| 2019-03-04 | 20190828 | ND |
| 2019-03-04 | 20190829 | ND |
| 2019-03-04 | 20190830 | ND |
| 2019-04-17 | 20191516 | ND |
| 2019-04-17 | 20191518 | ND |
| 2019-04-17 | 20191517 | ND |
| 2019-05-02 | 20191674 | ND |
| 2019-05-02 | 20191675 | ND |
| 2019-05-02 | 20191678 | ND |
| 2019-05-02 | 20191676 | ND |
| 2019-05-02 | 20191677 | ND |
| 2019-07-15 | 20192723 | ND |
| 2019-07-15 | 20192724 | ND |
| 2019-07-15 | 20192727 | ND |
| 2019-07-15 | 20192728 | ND |
| 2019-07-15 | 20192725 | ND |
| 2019-07-15 | 20192726 | ND |
| 2019-08-05 | 20192977 | ND |
| 2019-08-05 | 20192978 | ND |
| 2019-08-05 | 20192976 | ND |
| 2019-08-05 | 20192979 | ND |
| 2019-09-04 | 20193493 | ND |
| 2019-09-04 | 20193494 | ND |
| 2019-09-04 | 20193495 | ND |
| 2019-09-04 | 20193496 | ND |
| 2019-10-21 | 20194146 | ND |
| 2019-10-21 | 20194147 | ND |
| 2019-10-21 | 20194148 | ND |
| 2019-11-04 | 20194264 | ND |
| 2019-11-04 | 20194265 | ND |
| 2019-11-04 | 20194267 | ND |
| 2019-11-04 | 20194266 | ND |
| 2019-11-04 | 20194268 | ND |
| 2019-11-04 | 20194269 | ND |
| 2019-12-02 | 20194693 | ND |
| 2019-12-02 | 20194694 | ND |
| 2019-12-02 | 20194696 | ND |
| 2019-12-02 | 20194697 | ND |
| 2019-12-02 | 20194695 | ND |
| 2020-01-20 | 21503056.00 | ND |
| 2020-01-20 | 21503077.00 | ND |
| 2020-01-20 | 21502993.00 | ND |
| 2020-01-20 | 21503014.00 | ND |
| 2020-01-20 | 21503035.00 | ND |
| 2020-02-03 | 21667080.00 | ND |
| 2020-02-03 | 21667101.00 | ND |
| 2020-02-03 | 21667122.00 | ND |
| 2020-03-02 | 21847017.00 | ND |
| 2020-03-02 | 21847038.00 | ND |
| 2020-03-02 | 21847059.00 | ND |
| 2020-03-02 | 21847080.00 | ND |
| 2020-05-05 | 22215270.00 | ND |
| 2020-05-05 | 22215291.00 | ND |
| 2020-05-05 | 22215333.00 | ND |
| 2020-05-05 | 22215354.00 | ND |
| 2020-05-05 | 22215312.00 | ND |
| 2020-06-01 | 22416281.00 | ND |
| 2020-06-01 | 22416302.00 | ND |
| 2020-06-01 | 22416344.00 | ND |
| 2020-06-01 | 22416365.00 | ND |
| 2020-06-01 | 22416323.00 | ND |
| 2020-06-01 | 22416386.00 | ND |
| 2020-07-20 | 22607574.00 | ND |
| 2020-07-20 | 22607595.00 | ND |
| 2020-07-20 | 22607511.00 | ND |
| 2020-07-20 | 22607532.00 | ND |
| 2020-07-20 | 22607553.00 | ND |
| 2020-08-03 | 22608151.00 | ND |
| 2020-08-03 | 22608172.00 | ND |
| 2020-08-03 | 22608193.00 | ND |
| 2020-08-03 | 22608214.00 | ND |
| 2020-09-02 | 22999415.00 | ND |
| 2020-09-02 | 22999436.00 | ND |
| 2020-09-02 | 22999478.00 | ND |
| 2020-09-02 | 22999499.00 | ND |
| 2020-09-02 | 22999457.00 | ND |
| 2020-09-02 | 22999520.00 | ND |
| 2020-10-19 | 23183098.00 | ND |
| 2020-10-19 | 23183119.00 | ND |
| 2020-10-19 | 23183140.00 | ND |
| 2020-11-02 | 23362137.00 | ND |
| 2020-11-02 | 23362158.00 | ND |
| 2020-11-02 | 23362179.00 | ND |
| 2020-11-02 | 23362200.00 | ND |
| 2020-12-02 | 23537599.00 | ND |
| 2020-12-02 | 23537620.00 | ND |
| 2020-12-02 | 23537641.00 | ND |
| 2020-12-02 | 23537662.00 | ND |
| 2021-01-18 | 23712796.00 | ND |
| 2021-01-18 | 23712817.00 | ND |
| 2021-01-18 | 23712775.00 | ND |
| 2021-02-05 | 23888811.00 | ND |
| 2021-02-05 | 23888853.00 | ND |
| 2021-02-05 | 23888832.00 | ND |
| 2021-03-01 | 24060129.00 | ND |
| 2021-03-01 | 24060150.00 | ND |
| 2021-03-01 | 24060171.00 | ND |
| 2021-03-09 | 24060108.00 | ND |
| 2021-04-19 | 24247769.00 | ND |
| 2021-04-19 | 24247790.00 | ND |
| 2021-05-17 | 24438762.00 | ND |
| 2021-05-17 | 24438783.00 | ND |
| 2021-05-17 | 24438804.00 | ND |
| 2021-06-02 | 24638233.00 | ND |
| 2021-06-02 | 24638254.00 | ND |
| 2021-06-02 | 24638275.00 | ND |
| 2021-06-02 | 24638296.00 | ND |
| 2021-07-21 | 24829605.00 | ND |
| 2021-07-21 | 24829626.00 | ND |
| 2021-07-21 | 24829543.00 | ND |
| 2021-07-21 | 24829564.00 | ND |
| 2021-07-21 | 24829584.00 | ND |
| 2021-08-03 | 24829648.00 | ND |
| 2021-08-03 | 24829669.00 | ND |
| 2021-08-03 | 24829690.00 | ND |
| 2021-08-03 | 24829732.00 | ND |
| 2021-08-03 | 24829711.00 | ND |
| 2021-09-08 | 25220382.00 | ND |
| 2021-09-08 | 25220403.00 | ND |
| 2021-09-08 | 25220424.00 | ND |
| 2021-10-18 | 25405349.00 | ND |
| 2021-10-19 | 25405328.00 | ND |
| 2021-10-19 | 25405370.00 | ND |
| 2021-10-19 | 25405391.00 | ND |
| 2021-11-01 | 25588159.00 | ND |
| 2021-12-06 | 25764725.00 | ND |
| 2022-01-17 | 25942745.00 | ND |
| 2022-01-17 | 25942766.00 | ND |
| 2022-01-17 | 25942724.00 | ND |
| 2022-01-17 | 25942787.00 | ND |
| 2022-02-09 | 26117636.00 | ND |
| 2022-02-09 | 26117657.00 | ND |
| 2022-02-09 | 26117678.00 | ND |
| 2022-02-09 | 26117699.00 | ND |
| 2022-03-02 | 26287448.00 | ND |
| 2022-05-04 | 26648500.00 | ND |
| 2022-05-04 | 26648521.00 | ND |
| 2022-05-04 | 26648542.00 | ND |
| 2022-05-16 | 26649186.00 | ND |
| 2022-05-16 | 26649207.00 | ND |
| 2022-05-16 | 26649228.00 | ND |
| 2022-06-06 | 26842861.00 | ND |
| 2022-07-20 | 27037770.00 | ND |
| 2022-08-03 | 27234061.00 | ND |
| 2022-08-03 | 27234082.00 | ND |
| 2022-08-03 | 27234040.00 | ND |
| 2022-08-03 | 27234103.00 | ND |
| 2022-10-17 | 27641620.00 | ND |
| 2022-10-17 | 27641641.00 | ND |
| 2022-10-17 | 27641662.00 | ND |
| 2022-11-02 | 27823010.00 | ND |
| 2022-12-05 | 27998847.00 | ND |
| 2023-01-18 | 28172958.00 | ND |
| 2023-01-18 | 28172979.00 | ND |
| 2023-01-18 | 28172937.00 | ND |
| 2023-01-19 | 28173000.00 | ND |
| 2023-02-02 | 28349542.00 | ND |
| 2023-03-06 | 28521264.00 | ND |
| 2023-03-06 | 28521285.00 | ND |
| 2023-04-12 | 28702329.00 | ND |
| 2023-06-21 | 29108540.00 | ND |
| 2023-07-19 | 29302133.00 | ND |
| 2023-07-19 | 29302154.00 | ND |
| 2023-07-19 | 29302112.00 | ND |
| 2023-08-02 | 29497559.00 | ND |
| 2023-09-13 | 29700121.00 | ND |
| 2023-09-13 | 29700142.00 | ND |
| 2023-10-12 | 29886774.00 | ND |
| 2023-11-01 | 30071593.00 | ND |
| 2023-12-04 | 30245963.00 | ND |