p-Dichlorobenzene
Travis Air Force Base Water Treatment Plant - Vallejo
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 |
|---|---|---|---|---|
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-01-09 | CA4810015_003_003-201801090758 | ND |
| 2018-03-13 | CA4810015_006_006-201803130855 | ND |
| 2018-04-11 | CA4810015_003_003-201804110740 | ND |
| 2018-07-09 | CA4810015_003_003-201807090840 | ND |
| 2019-01-07 | CA4810015_003_003-201901070825 | ND |
| 2019-03-11 | CA4810015_006_006-201903110810 | ND |
| 2019-03-11 | CA4810015_005_005-201903111000 | ND |
| 2019-04-02 | CA4810015_003_003-201904020750 | ND |
| 2019-07-01 | CA4810015_003_003-201907010817 | ND |
| 2020-01-07 | CA4810015_003_003-202001070855 | ND |
| 2020-03-10 | CA4810015_005_005-202003101005 | ND |
| 2020-03-10 | CA4810015_006_006-202003101130 | ND |
| 2020-10-05 | CA4810015_003_003-202010050842 | ND |
| 2021-01-11 | CA4810015_003_003-202101110850 | ND |
| 2021-03-25 | CA4810015_006_006-202103251020 | ND |
| 2021-03-25 | CA4810015_006_006-202103251152 | ND |
| 2022-01-05 | CA4810015_003_003-202201050906 | ND |
| 2022-03-15 | CA4810015_006_006-202203150932 | ND |
| 2023-01-10 | CA4810015_003_003-202301100815 | ND |
| 2023-03-16 | CA4810015_006_006-202303161115 | ND |