1,2,4-Trichlorobenzene
Ely Municipal Water Department
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 5 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 1 | 0 | ND |
2019 | ND | 4 | 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 |
---|---|---|
2014-02-18 | 1402384-002 | ND |
2014-02-18 | 1402384-001 | ND |
2014-04-15 | 1404372-001 | ND |
2014-04-15 | 1404372-002 | ND |
2014-12-16 | 1412517-001 | ND |
2015-03-11 | 1503401-003 | ND |
2016-09-08 | 6I13035-04V | ND |
2016-09-08 | 6I13035-01 | ND |
2016-09-08 | 6I13035-02 | ND |
2016-09-08 | 6I13035-03 | ND |
2018-11-08 | 18110223-007 | ND |
2019-11-14 | 19110404-002 | ND |
2019-11-14 | 19110404-003 | ND |
2019-11-14 | 19110404-005 | ND |
2019-11-21 | 19110631-001 | ND |