p-Dichlorobenzene
City of Shafter
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 10 | 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 |
|---|---|---|
| 2015-12-10 | 5806-021-1030 | ND |
| 2016-02-23 | 5867-007-1225 | ND |
| 2016-02-23 | 5867-003-0920 | ND |
| 2016-02-23 | 5867-008-1130 | ND |
| 2016-02-23 | 5867-017-1055 | ND |
| 2016-04-05 | 5867-021-1355 | ND |
| 2016-11-01 | 5867-004-1120 | ND |
| 2017-01-24 | 5867-021-1110 | ND |
| 2018-03-28 | 5867-021-1335 | ND |
| 2018-04-24 | 5867-021-1115 | ND |
| 2018-07-13 | 5806-025-0900 | ND |
| 2018-07-24 | 5867-021-1015 | ND |
| 2018-10-23 | 5867-021-1140 | ND |
| 2018-11-08 | 5806-023-0810 | ND |
| 2019-01-23 | 5806-017-1020 | ND |
| 2019-01-23 | 5806-008-1055 | ND |
| 2019-01-23 | 5806-007-0945 | ND |
| 2019-01-23 | 5806-021-1130 | ND |
| 2019-01-23 | 5806-023-0850 | ND |
| 2019-02-26 | 5867-017-1215 | ND |
| 2019-02-26 | 5867-007-1110 | ND |
| 2019-04-23 | 5867-021-1225 | ND |
| 2019-06-25 | 5867-023-1410 | ND |
| 2019-09-16 | 5806-023-0800 | ND |