1,2,4-Trichlorobenzene
Richland Township Water Authority
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 | 6 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2014-05-15 | 14050658-02 | ND |
| 2014-05-15 | 14050658-01 | ND |
| 2014-09-25 | 14091904-01 | ND |
| 2015-02-10 | 12392446 | ND |
| 2015-04-23 | 12871963 | ND |
| 2015-04-23 | 12871964 | ND |
| 2015-06-09 | 12872152 | ND |
| 2015-09-28 | 13380545 | ND |
| 2015-12-08 | 13624261 | ND |
| 2016-02-16 | 13861548 | ND |
| 2016-03-15 | 13977437 | ND |
| 2016-04-12 | 14092298 | ND |
| 2016-04-12 | 14092277 | ND |
| 2017-09-11 | 16716484 | ND |
| 2017-09-11 | 16716507 | ND |
| 2017-09-11 | 16716457 | ND |
| 2018-10-15 | 8033560-01 | ND |
| 2018-10-15 | 8033560-02 | ND |
| 2018-10-15 | 8033560-03 | ND |
| 2019-10-07 | 9032226-01 | ND |
| 2019-10-07 | 9032226-02 | ND |
| 2019-10-07 | 9032226-03 | ND |