1,2,4-Trichlorobenzene
Menomonee Falls WW - Groundwater
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 | 5 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 1 | 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 |
|---|---|---|
| 2014-04-22 | 781776 | ND |
| 2014-06-24 | 4098771001-1 | ND |
| 2014-08-18 | 812259 | ND |
| 2014-08-18 | 812263 | ND |
| 2014-12-08 | 40108193002-1 | ND |
| 2015-02-26 | 40111068001-1 | ND |
| 2015-06-09 | 40116376001-1 | ND |
| 2015-08-19 | 40119851002-1 | ND |
| 2015-12-09 | 40125923001-1 | ND |
| 2016-03-08 | 40129217001-1 | ND |
| 2016-06-02 | 40133220001-1 | ND |
| 2016-08-18 | 40137000004-1 | ND |
| 2016-11-30 | 40142817002-1 | ND |
| 2017-03-14 | 40146774001-1 | ND |
| 2017-06-08 | 40151360001-1 | ND |
| 2017-08-24 | 40155697001-1 | ND |
| 2018-08-08 | 40173776001-1 | ND |
| 2019-08-13 | 40192942001-1 | ND |