1,2,4-Trichlorobenzene
Travis Air Force Base Water Treatment Plant - Vallejo
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
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: 5 ppb
The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene 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 hormone disruption.
EPA Maximum Contaminant
Level (MCL): 70 ppb
The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.
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_005_005-201903111000 | ND |
| 2019-03-11 | CA4810015_006_006-201903110810 | 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_006_006-202003101130 | ND |
| 2020-03-10 | CA4810015_005_005-202003101005 | 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 |