1,2,4-Trichlorobenzene
Fort Smith Water 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 |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 1 | 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 |
|---|---|---|
| 2014-01-28 | 14030007201 | ND |
| 2014-11-24 | 14330004501 | ND |
| 2015-01-14 | 15016002501 | ND |
| 2015-10-26 | 15303000101 | ND |
| 2016-01-14 | 16015003401 | ND |
| 2016-10-31 | 16308001701 | ND |
| 2017-01-31 | 17033002101 | ND |
| 2017-10-16 | 17292010301 | ND |
| 2018-10-22 | 18298002509 | ND |
| 2019-01-29 | 19031004401 | ND |
| 2019-01-29 | 19031004901 | ND |
| 2019-04-23 | 19115003301 | ND |
| 2019-08-28 | 19241001501 | ND |
| 2019-10-08 | 19283007901 | ND |