1,2,4-Trichlorobenzene
Manitowoc 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 |
|---|---|---|---|---|
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-05-07 | 784433 | ND |
| 2014-05-07 | 784449 | ND |
| 2014-05-29 | 793121 | ND |
| 2014-06-11 | 796115 | ND |
| 2015-02-11 | 843004 | ND |
| 2016-02-16 | 905609 | ND |
| 2016-02-16 | 905611 | ND |
| 2016-03-01 | 907356 | ND |
| 2016-03-17 | 910822 | ND |
| 2017-03-08 | 1703685-001A | ND |
| 2017-03-08 | 1703685-003A | ND |
| 2017-03-08 | 1703641-001A | ND |
| 2017-03-21 | 1703E78-001A | ND |
| 2017-05-09 | 987555 | ND |
| 2018-02-07 | 1040110 | ND |
| 2018-02-07 | 1040112 | ND |
| 2018-02-26 | 1042436 | ND |
| 2019-02-13 | 1104964 | ND |