1,2,4-Trichlorobenzene
Broadmoor Utilities Inc.
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2019-10-14 | 191015-002VO | ND |
| 2020-04-13 | 200414-002VO | ND |
| 2020-09-29 | 200930-001VO | ND |
| 2020-10-20 | 201021-009VO | ND |
| 2021-02-08 | 210209-012VO | ND |
| 2021-05-17 | 210518-005VO | ND |
| 2021-07-20 | VO-210721-012 | ND |
| 2021-10-11 | VO-211012-015 | ND |
| 2022-01-03 | VO-220104-010 | ND |
| 2022-04-05 | VO-220406-006 | ND |