1,2,4-Trichlorobenzene
Sun Prairie 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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 13 | 0 | ND |
| 2015 | ND | 10 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-03-18 | 775328 | ND |
| 2014-03-18 | 775285 | ND |
| 2014-03-18 | 775336 | ND |
| 2014-03-18 | 775330 | ND |
| 2014-05-06 | 784518 | ND |
| 2014-05-06 | 784519 | ND |
| 2014-05-06 | 784516 | ND |
| 2014-05-06 | 784515 | ND |
| 2014-05-06 | 784514 | ND |
| 2014-08-19 | 811529 | ND |
| 2014-08-19 | 811530 | ND |
| 2014-10-15 | 825807 | ND |
| 2014-10-15 | 825805 | ND |
| 2015-03-04 | 846348 | ND |
| 2015-03-04 | 846346 | ND |
| 2015-03-04 | 846354 | ND |
| 2015-03-04 | 846352 | ND |
| 2015-03-04 | 846356 | ND |
| 2015-03-04 | 846344 | ND |
| 2015-03-04 | 846350 | ND |
| 2015-04-28 | 856747 | ND |
| 2015-09-09 | 881828 | ND |
| 2015-10-20 | 890964 | ND |
| 2016-05-18 | 922018 | ND |
| 2016-05-18 | 922016 | ND |
| 2016-08-09 | 938123 | ND |
| 2016-10-11 | 952740 | ND |
| 2017-02-07 | 972682 | ND |
| 2017-04-26 | 985413 | ND |
| 2017-04-26 | 985429 | ND |
| 2017-04-26 | 985422 | ND |
| 2017-04-26 | 985418 | ND |
| 2017-04-26 | 985409 | ND |
| 2017-07-11 | 1003142 | ND |
| 2017-10-24 | 1026061 | ND |
| 2018-01-29 | 1038884 | ND |
| 2018-04-24 | 1051655 | ND |
| 2018-04-24 | 1051659 | ND |
| 2018-08-29 | 1077039 | ND |
| 2019-07-23 | 1136249 | ND |
| 2019-07-23 | 1136252 | ND |
| 2019-12-04 | 1163398 | ND |