1,2,4-Trichlorobenzene
Indiana American Water - Richmond
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 | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 6 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2014-04-22 | 252191RV-1402 | ND |
| 2014-04-22 | 252196RV-1402 | ND |
| 2014-04-22 | 252201RV-1402 | ND |
| 2015-04-07 | 28646301RV-1502 | ND |
| 2015-04-07 | 28646801RV-1502 | ND |
| 2016-04-11 | 317319RV-1602 | ND |
| 2016-04-11 | 317324RV-1602 | ND |
| 2017-04-04 | 35194501RV-1702 | ND |
| 2017-04-04 | 35195001RV-1702 | ND |
| 2017-04-04 | 35195401RV-1702 | ND |
| 2017-05-02 | 35710901RV-1702 | ND |
| 2017-07-17 | 361588RV-1703 | ND |
| 2017-10-03 | 372170RV-1704 | ND |
| 2019-04-02 | 43622301RV-1902 | ND |
| 2019-04-02 | 43622401RV-1902 | ND |
| 2019-04-02 | 43622901RV-1902 | ND |