1,2,4-Trichlorobenzene
Great Waters At Reynolds Plantation
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 6 | 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 |
|---|---|---|
| 2014-05-05 | AI39465 | ND |
| 2014-05-05 | AI39464 | ND |
| 2014-05-05 | AI39463 | ND |
| 2014-05-05 | AI39462 | ND |
| 2015-03-18 | AI69317 | ND |
| 2015-03-18 | AI69316 | ND |
| 2015-03-18 | AI69315 | ND |
| 2015-03-18 | AI69314 | ND |
| 2016-04-06 | AJ09536 | ND |
| 2016-04-06 | AJ09537 | ND |
| 2016-04-06 | AJ09535 | ND |
| 2016-04-06 | AJ09534 | ND |
| 2016-04-06 | AJ09533 | ND |
| 2019-07-30 | AK23894 | ND |
| 2019-07-30 | AK23893 | ND |
| 2019-07-30 | AK23892 | ND |
| 2019-07-30 | AK23891 | ND |
| 2019-08-21 | AK27477 | ND |
| 2019-08-21 | AK27478 | ND |