1,2,4-Trichlorobenzene
Lomira Waterworks
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 | 5 | 0 | ND |
| 2019 | ND | 6 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-03-12 | 1044517 | ND |
| 2018-03-12 | 1044519 | ND |
| 2018-04-17 | 1050450 | ND |
| 2018-08-06 | 1071729 | ND |
| 2018-12-10 | 1097116 | ND |
| 2019-03-12 | 1109088 | ND |
| 2019-03-12 | 1109086 | ND |
| 2019-06-03 | 1124568 | ND |
| 2019-07-23 | 1136304 | ND |
| 2019-07-23 | 1136305 | ND |
| 2019-10-16 | 1155641 | ND |
| 2020-07-14 | 1199585 | ND |
| 2020-07-14 | 1199589 | ND |
| 2021-07-26 | 1267994 | ND |
| 2021-07-26 | 1267993 | ND |
| 2022-09-06 | 1334570 | ND |
| 2022-09-06 | 1334573 | ND |
| 2023-03-01 | CB01988-01 | ND |
| 2023-04-12 | WB02091-03 | ND |
| 2023-04-19 | WB02241-01 | ND |
| 2023-08-15 | WB05131-01 | ND |
| 2023-10-16 | CB12756-01 | ND |