1,2,4-Trichlorobenzene
Butte-Silver Bow 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 | 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 |
---|---|---|
2014-02-24 | B14021519-003E | ND |
2014-02-24 | B14021519-002E | ND |
2014-02-24 | B14021519-001E | ND |
2015-02-24 | B15021845-003C | ND |
2015-02-24 | B15021845-002C | ND |
2015-02-24 | B15021845-001C | ND |
2016-02-22 | B16021667-001C | ND |
2016-02-22 | B16021667-003C | ND |
2016-02-22 | B16021667-002C | ND |
2017-06-20 | B17061971-003E | ND |
2017-06-20 | B17061971-002E | ND |
2017-06-20 | B17061971-001E | ND |
2018-03-13 | B18031136-003C | ND |
2018-03-13 | B18031136-002C | ND |
2018-03-13 | B18031136-001C | ND |
2019-03-25 | B19032022-001C | ND |
2019-03-25 | B19032022-003C | ND |
2019-03-25 | B19032022-002C | ND |