1,2,4-Trichlorobenzene
Norwich Public Utilities
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 3 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 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 |
---|---|---|
2014-05-01 | 6300210VOC1 | ND |
2014-05-01 | 6300211VOC1 | ND |
2014-05-01 | 6300209VOC1 | ND |
2015-08-19 | 6301190VOC1 | ND |
2015-08-19 | 6301191VOC1 | ND |
2015-08-19 | 6301192VOC1 | ND |
2016-11-17 | 6302524VOC1 | ND |
2016-11-17 | 6302525VOC1 | ND |
2016-11-17 | 6302526VOC1 | ND |
2017-06-15 | PH-0453-6303177V | ND |
2017-06-15 | PH-0453-6303179V | ND |
2017-06-15 | PH-0453-6303178V | ND |
2018-09-18 | PH-0453-6304496V | ND |
2018-09-18 | PH-0453-6304497V | ND |
2018-10-03 | PH-0453-6304498V | ND |
2019-08-29 | PH-0453-6305609V | ND |
2019-08-29 | PH-0453-6305611V | ND |
2019-09-16 | PH-0453-6305610V | ND |