p-Dichlorobenzene
Golden State Water Company (GSWC) - Norwalk
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 5 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 6 | 0 | ND |
2017 | ND | 7 | 0 | ND |
2018 | ND | 8 | 0 | ND |
2019 | ND | 6 | 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 |
---|---|---|
2014-02-04 | 2706-010-1225 | ND |
2014-02-04 | 2706-016-0900 | ND |
2014-05-06 | 2706-016-1028 | ND |
2014-08-06 | 2706-016-0940 | ND |
2014-11-04 | 2706-016-1054 | ND |
2015-02-02 | 2706-010-1023 | ND |
2015-02-03 | 2706-016-1152 | ND |
2015-05-07 | 2706-016-1358 | ND |
2015-08-04 | 2706-016-0821 | ND |
2015-11-04 | 2706-016-1304 | ND |
2016-05-02 | 2706-028-1147 | ND |
2016-05-02 | 2706-032-0751 | ND |
2016-05-04 | 2706-016-0921 | ND |
2016-05-04 | 2706-016-0910 | ND |
2016-08-02 | 2706-016-1146 | ND |
2016-11-08 | 2706-016-1303 | ND |
2017-01-03 | 9590-016-1315 | ND |
2017-02-09 | 9590-010-1025 | ND |
2017-02-13 | 9590-016-0850 | ND |
2017-02-27 | 9590-028-1013 | ND |
2017-05-03 | 9590-016-0920 | ND |
2017-08-01 | 9590-016-1029 | ND |
2017-11-09 | 9590-016-1103 | ND |
2018-02-08 | 9590-016-1401 | ND |
2018-02-12 | 9590-010-1230 | ND |
2018-03-07 | 9590-028-1338 | ND |
2018-03-07 | 9590-016-1407 | ND |
2018-03-07 | 9590-032-1304 | ND |
2018-05-02 | 9590-016-1147 | ND |
2018-09-12 | 9590-016-1156 | ND |
2018-11-06 | 9590-016-1203 | ND |
2019-02-11 | 9590-032-1330 | ND |
2019-02-11 | 9590-016-1054 | ND |
2019-02-12 | 9590-028-1333 | ND |
2019-05-08 | 9590-016-1140 | ND |
2019-08-06 | 9590-032-1220 | ND |
2019-11-06 | 9590-032-1235 | ND |