p-Dichlorobenzene
Valley Water Systems, Inc.
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 | 16 | 0 | ND |
| 2015 | ND | 8 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2014-02-12 | AEL14000836-VOC | ND |
| 2014-02-12 | AEL14000835-VOC | ND |
| 2014-02-12 | AEL14000838-VOC | ND |
| 2014-02-12 | AEL14000837-VOC | ND |
| 2014-05-08 | AEL14002698-VOC | ND |
| 2014-05-08 | AEL14002699-VOC | ND |
| 2014-05-08 | AEL14002700-VOC | ND |
| 2014-05-08 | AEL14002701-VOC | ND |
| 2014-08-13 | AEL14004403-VOC | ND |
| 2014-08-13 | AEL14004404-VOC | ND |
| 2014-08-13 | AEL14004405-VOC | ND |
| 2014-08-13 | AEL14004406-VOC | ND |
| 2014-11-05 | 14006001-VOC | ND |
| 2014-11-05 | 14006002-VOC | ND |
| 2014-11-05 | 14006003-VOC | ND |
| 2014-11-05 | 14006004-VOC | ND |
| 2015-02-05 | 15000847-VOC | ND |
| 2015-02-05 | 15000844-VOC | ND |
| 2015-05-05 | 15002660-VOC | ND |
| 2015-05-05 | 15002657-VOC | ND |
| 2015-08-12 | 15006355-VOC | ND |
| 2015-08-12 | 15006352-VOC | ND |
| 2015-11-05 | 15110510-001-VOC | ND |
| 2015-11-05 | 15110510-004-VOC | ND |
| 2016-02-01 | 16020104-004-VOC | ND |
| 2016-02-01 | 16020104-001-VOC | ND |
| 2016-05-02 | 16050204-004-VOC | ND |
| 2016-05-02 | 16050204-001-VOC | ND |
| 2016-08-01 | 16080104-004-VOC | ND |
| 2016-08-01 | 16080104-001-VOC | ND |
| 2016-11-02 | 16110205-004-VOC | ND |
| 2016-11-02 | 16110205-001-VOC | ND |
| 2017-02-02 | 17020207-004-VOC | ND |
| 2017-02-02 | 17020207-001-VOC | ND |
| 2017-05-01 | 17050102-004-VOC | ND |
| 2017-05-01 | 17050102-001-VOC | ND |
| 2017-08-02 | 17080204-004-VOC | ND |
| 2017-08-02 | 17080204-001-VOC | ND |
| 2017-11-02 | 17110202-004-VOC | ND |
| 2017-11-02 | 17110202-001-VOC | ND |
| 2018-02-01 | 18020109-004-VOC | ND |
| 2018-02-01 | 18020109-001-VOC | ND |
| 2018-05-02 | 18050206-004-VOC | ND |
| 2018-05-02 | 18050206-001-VOC | ND |
| 2018-08-01 | 18080103-004-VOC | ND |
| 2018-08-01 | 18080103-001-VOC | ND |
| 2018-11-02 | 18110205-004-VOC | ND |
| 2018-11-02 | 18110205-001-VOC | ND |
| 2019-02-06 | 19020602-004-VOC | ND |
| 2019-02-06 | 19020602-001-VOC | ND |
| 2019-05-03 | 19050304-001-VOC | ND |
| 2019-05-03 | 19050304-004-VOC | ND |
| 2019-08-01 | 19080105-001-VOC | ND |
| 2019-08-01 | 19080105-004-VOC | ND |
| 2019-12-23 | 19122307-001-VOC | ND |
| 2019-12-23 | 19122307-004-VOC | ND |