1,2,4-Trichlorobenzene
Macon County 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 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 2 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 3 | 0 | ND |
2019 | ND | 7 | 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 |
---|---|---|
2016-01-12 | AB09710 | ND |
2016-01-12 | AB09709 | ND |
2018-02-08 | 180200124-1V | ND |
2018-10-09 | AB30832 | ND |
2018-10-09 | AB30831 | ND |
2019-01-17 | AB32622 | ND |
2019-01-17 | AB32621 | ND |
2019-09-23 | AB38740 | ND |
2019-09-23 | AB38739 | ND |
2019-09-23 | AB38738 | ND |
2019-10-17 | AB39416 | ND |
2019-10-17 | AB39415 | ND |