p-Dichlorobenzene
Whitewater Waterworks
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 |
|---|---|---|---|---|
| 2014 | ND | 18 | 0 | ND |
| 2015 | 0.0220 ppb | 20 | 2 | ND - 0.290 ppb |
| 2016 | 0.0435 ppb | 20 | 2 | ND - 0.560 ppb |
| 2017 | 0.0471 ppb | 17 | 2 | ND - 0.480 ppb |
| 2018 | ND | 16 | 0 | ND |
| 2019 | ND | 16 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-03-04 | 773349 | ND |
| 2014-03-04 | 773351 | ND |
| 2014-03-04 | 773353 | ND |
| 2014-03-20 | 776110 | ND |
| 2014-04-16 | 781216 | ND |
| 2014-04-16 | 781217 | ND |
| 2014-04-16 | 781218 | ND |
| 2014-04-16 | 781219 | ND |
| 2014-07-15 | 803184 | ND |
| 2014-07-15 | 803182 | ND |
| 2014-07-15 | 803181 | ND |
| 2014-07-31 | 807461 | ND |
| 2014-07-31 | 807459 | ND |
| 2014-10-16 | 826129 | ND |
| 2014-10-16 | 826128 | ND |
| 2014-10-16 | 826126 | ND |
| 2014-10-16 | 826125 | ND |
| 2014-10-16 | 826124 | ND |
| 2015-02-18 | 844244 | ND |
| 2015-02-18 | 844246 | ND |
| 2015-02-18 | 844250 | ND |
| 2015-02-18 | 844252 | ND |
| 2015-02-18 | 844254 | ND |
| 2015-06-01 | 863167 | ND |
| 2015-06-01 | 863169 | ND |
| 2015-06-01 | 863171 | ND |
| 2015-06-01 | 863170 | ND |
| 2015-06-01 | 863173 | ND |
| 2015-08-25 | 878839 | ND |
| 2015-08-25 | 878840 | ND |
| 2015-08-25 | 878841 | ND |
| 2015-08-25 | 878843 | ND |
| 2015-08-25 | 878845 | ND |
| 2015-12-14 | 897968 | ND |
| 2015-12-14 | 897971 | ND |
| 2015-12-14 | 897973 | ND |
| 2015-12-14 | 897967 | 0.150 ppb |
| 2015-12-14 | 897970 | 0.290 ppb |
| 2016-01-19 | 902193 | ND |
| 2016-01-19 | 902194 | ND |
| 2016-01-19 | 902195 | ND |
| 2016-01-19 | 902196 | ND |
| 2016-01-19 | 902197 | ND |
| 2016-04-19 | 916904 | ND |
| 2016-04-19 | 916905 | ND |
| 2016-04-19 | 916907 | ND |
| 2016-05-27 | 923840 | ND |
| 2016-07-13 | 933279 | ND |
| 2016-07-13 | 933281 | ND |
| 2016-07-13 | 933283 | ND |
| 2016-07-13 | 933278 | 0.310 ppb |
| 2016-07-13 | 933285 | 0.560 ppb |
| 2016-08-10 | 938568 | ND |
| 2016-10-11 | 952769 | ND |
| 2016-10-11 | 952770 | ND |
| 2016-10-11 | 952772 | ND |
| 2016-10-11 | 952773 | ND |
| 2016-10-11 | 952774 | ND |
| 2017-03-06 | 976496 | ND |
| 2017-03-06 | 976507 | ND |
| 2017-03-06 | 976503 | ND |
| 2017-03-06 | 976498 | 0.320 ppb |
| 2017-03-06 | 976492 | 0.480 ppb |
| 2017-06-06 | 995762 | ND |
| 2017-06-06 | 995761 | ND |
| 2017-06-06 | 995758 | ND |
| 2017-06-06 | 995759 | ND |
| 2017-07-24 | 1006693 | ND |
| 2017-07-24 | 1006694 | ND |
| 2017-07-24 | 1006696 | ND |
| 2017-07-24 | 1006697 | ND |
| 2017-11-28 | 1031083 | ND |
| 2017-11-28 | 1031084 | ND |
| 2017-11-28 | 1031086 | ND |
| 2017-11-28 | 1031088 | ND |
| 2018-01-30 | 1039117 | ND |
| 2018-01-30 | 1039121 | ND |
| 2018-01-30 | 1039123 | ND |
| 2018-01-30 | 1039125 | ND |
| 2018-04-23 | 1051374 | ND |
| 2018-04-23 | 1051375 | ND |
| 2018-04-23 | 1051377 | ND |
| 2018-04-23 | 1051378 | ND |
| 2018-08-07 | 1072173 | ND |
| 2018-08-07 | 1072176 | ND |
| 2018-08-07 | 1072174 | ND |
| 2018-08-07 | 1072177 | ND |
| 2018-10-22 | 1088316 | ND |
| 2018-10-22 | 1088317 | ND |
| 2018-10-22 | 1088319 | ND |
| 2018-10-22 | 1088320 | ND |
| 2019-02-25 | 1106616 | ND |
| 2019-02-25 | 1106614 | ND |
| 2019-02-25 | 1106612 | ND |
| 2019-02-25 | 1106608 | ND |
| 2019-04-23 | 1117103 | ND |
| 2019-04-23 | 1117102 | ND |
| 2019-04-23 | 1117099 | ND |
| 2019-04-23 | 1117100 | ND |
| 2019-08-26 | 1143692 | ND |
| 2019-08-26 | 1143693 | ND |
| 2019-08-26 | 1143695 | ND |
| 2019-08-26 | 1143696 | ND |
| 2019-10-29 | 1158067 | ND |
| 2019-10-29 | 1158068 | ND |
| 2019-10-29 | 1158070 | ND |
| 2019-10-29 | 1158071 | ND |