p-Dichlorobenzene
Green Valley County Water District
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 | 8 | 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 |
|---|---|---|
| 2014-03-12 | 5867-010-1050 | ND |
| 2014-03-12 | 5867-009-1120 | ND |
| 2014-03-12 | 5867-008-1035 | ND |
| 2014-03-12 | 5867-007-1150 | ND |
| 2014-03-12 | 5867-006-1135 | ND |
| 2014-03-12 | 5867-005-1005 | ND |
| 2014-03-12 | 5867-004-1020 | ND |
| 2014-03-12 | 5867-003-1105 | ND |
| 2015-03-19 | 5867-005-1015 | ND |
| 2015-03-19 | 5867-007-1125 | ND |
| 2015-03-19 | 5867-008-1033 | ND |
| 2015-03-19 | 5867-009-1105 | ND |
| 2015-03-19 | 5867-006-1115 | ND |
| 2015-03-19 | 5867-010-1040 | ND |
| 2015-03-19 | 5867-004-1022 | ND |
| 2015-03-19 | 5867-003-1050 | ND |
| 2016-03-15 | 5867-009-1030 | ND |
| 2016-03-15 | 5867-010-1005 | ND |
| 2016-03-15 | 5867-003-1015 | ND |
| 2016-03-15 | 5867-008-1000 | ND |
| 2016-03-15 | 5867-007-1040 | ND |
| 2016-03-15 | 5867-004-0955 | ND |
| 2016-03-15 | 5867-005-0950 | ND |
| 2016-03-15 | 5867-006-1035 | ND |
| 2017-03-15 | 5867-007-1150 | ND |
| 2017-03-15 | 5867-003-1105 | ND |
| 2017-03-15 | 5867-004-1035 | ND |
| 2017-03-15 | 5867-010-1055 | ND |
| 2017-03-15 | 5867-005-1020 | ND |
| 2017-03-15 | 5867-009-1125 | ND |
| 2017-03-15 | 5867-008-1045 | ND |
| 2017-03-15 | 5867-006-1135 | ND |
| 2018-03-14 | 5867-008-0955 | ND |
| 2018-03-14 | 5867-009-1030 | ND |
| 2018-03-14 | 5867-003-1019 | ND |
| 2018-03-14 | 5867-005-0932 | ND |
| 2018-03-14 | 5867-010-1006 | ND |
| 2018-03-14 | 5867-006-1041 | ND |
| 2018-03-14 | 5867-007-1054 | ND |
| 2018-03-14 | 5867-004-0943 | ND |
| 2019-03-13 | 5867-010-1023 | ND |
| 2019-03-13 | 5867-006-1036 | ND |
| 2019-03-13 | 5867-003-1112 | ND |
| 2019-03-13 | 5867-007-1100 | ND |
| 2019-03-13 | 5867-004-1127 | ND |
| 2019-03-13 | 5867-008-1010 | ND |
| 2019-03-13 | 5867-005-0957 | ND |
| 2019-04-24 | 5867-009-1200 | ND |