1,2,4-Trichlorobenzene
Northern Kentucky Water District
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-03-10 | 201403531002 | ND |
| 2014-03-10 | 201403531001 | ND |
| 2014-08-05 | 201411056002 | ND |
| 2015-03-02 | 201502492001 | ND |
| 2015-04-20 | 201504745001 | ND |
| 2015-08-04 | 201509354003 | ND |
| 2016-03-02 | 201603148002 | ND |
| 2016-03-02 | 201603148003 | ND |
| 2016-08-02 | 11369002 | ND |
| 2017-03-07 | 03262001 | ND |
| 2017-03-07 | 03262002 | ND |
| 2017-08-08 | 11676002 | ND |
| 2018-01-30 | 01042001 | ND |
| 2018-01-30 | 01042002 | ND |
| 2018-08-28 | 08281808 | ND |
| 2019-03-06 | 03061929 | ND |
| 2019-03-13 | 031131904 | ND |
| 2019-03-13 | 03131906 | ND |
| 2019-07-09 | 07081910 | ND |
| 2019-07-10 | 07081924 | ND |