p-Dichlorobenzene
Janesville Water Utility
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 8 | 0 | ND |
| 2015 | 0.0767 ppb | 6 | 3 | ND - 0.160 ppb |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-02-25 | 771928 | ND |
| 2014-02-25 | 771931 | ND |
| 2014-02-25 | 771925 | ND |
| 2014-02-26 | 772232 | ND |
| 2014-02-26 | 772235 | ND |
| 2014-04-28 | 782734 | ND |
| 2014-07-29 | 806667 | ND |
| 2014-10-14 | 825486 | ND |
| 2015-02-11 | 843014 | ND |
| 2015-04-29 | 857167 | ND |
| 2015-08-19 | 878024 | 0.160 ppb |
| 2015-08-19 | 878025 | 0.160 ppb |
| 2015-08-19 | 878021 | 0.140 ppb |
| 2015-11-10 | 893381 | ND |
| 2016-02-09 | 904717 | ND |
| 2016-04-26 | 917940 | ND |
| 2016-08-01 | 936371 | ND |
| 2017-04-11 | 982422 | ND |
| 2017-04-11 | 982425 | ND |
| 2017-04-11 | 982417 | ND |
| 2018-01-31 | 1039237 | ND |
| 2018-05-14 | 1055415 | ND |
| 2018-07-10 | 1065966 | ND |
| 2018-11-06 | 1091305 | ND |
| 2019-02-04 | 1103525 | ND |
| 2019-05-21 | 1122290 | ND |
| 2019-07-31 | 1137854 | ND |