1,2,4-Trichlorobenzene
Utrwd Regional Water Treatment Plant
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 | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-07-22 | Q1429878002 | ND |
2014-07-22 | Q1429878004 | ND |
2015-09-16 | Q1536495003 | ND |
2015-09-21 | Q1536819003 | ND |
2016-09-01 | Q1635093002 | ND |
2016-09-02 | Q1635676002 | ND |
2017-09-07 | Q1742147002 | ND |
2017-09-26 | Q1746575006 | ND |
2018-09-13 | Q1836570001 | ND |
2018-09-25 | Q1838256005 | ND |
2019-09-26 | Q1969362002 | ND |
2019-09-27 | Q1970279005 | ND |