1,2,4-Trichlorobenzene
Carolina Beach Water System
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 | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 9 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 10 | 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 |
|---|---|---|
| 2014-07-07 | 37729_14-19836 | ND |
| 2015-08-03 | ND | |
| 2016-08-08 | 37729_16-26799 | ND |
| 2016-08-08 | 37729_16-26801 | ND |
| 2016-08-08 | 37729_16-26802 | ND |
| 2016-08-08 | 37729_16-26803 | ND |
| 2016-08-08 | 37729_16-26804 | ND |
| 2016-08-08 | 37729_16-26805 | ND |
| 2016-08-08 | 37729_16-26806 | ND |
| 2016-08-08 | 37729_16-26807 | ND |
| 2016-08-08 | 37729_16-26808 | ND |
| 2017-08-10 | 37729_17-28383 | ND |
| 2019-08-09 | 37729_19-33894 | ND |
| 2019-08-09 | 37729_19-33895 | ND |
| 2019-08-09 | 37729_19-33896 | ND |
| 2019-08-09 | 37729_19-33897 | ND |
| 2019-08-09 | 37729_19-33898 | ND |
| 2019-08-09 | 37729_19-33899 | ND |
| 2019-08-09 | 37729_19-33900 | ND |
| 2019-08-09 | 37729_19-33901 | ND |
| 2019-10-30 | 37729_19-46749 | ND |
| 2019-10-30 | 37729_19-46750 | ND |