1,2,4-Trichlorobenzene
Bicknell Municipal Utilities
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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 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 |
|---|---|---|
| 2018-11-08 | 18017992001RV-1804 | ND |
| 2019-02-13 | 19002243001RV-1901 | ND |
| 2020-02-10 | 20002097001RV-2001 | ND |
| 2021-01-25 | 21001631-001-0001 | ND |
| 2021-04-06 | 21006360-001-0001 | ND |
| 2021-07-19 | 21013950-001-0003 | ND |
| 2021-10-05 | 21019917-001-0004 | ND |
| 2022-03-30 | 22005510-001-0001 | ND |
| 2022-04-06 | 22006016-001-0002 | ND |
| 2022-09-14 | 22017362-001-0002 | ND |
| 2022-10-04 | 50328007003 | ND |
| 2023-03-06 | 23003973-001-0003 | ND |
| 2023-04-24 | 23007299-001-0001 | ND |