1,2,4-Trichlorobenzene
Kalaheo-Koloa
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 | 2 | 0 | ND |
2016 | ND | 8 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 11 | 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 |
---|---|---|
2014-04-15 | C14-04-0141A | ND |
2014-04-15 | C14-04-0142A | ND |
2014-04-15 | C14-04-0140A | ND |
2015-07-06 | C15-07-0148A | ND |
2015-07-08 | C15-07-0208A | ND |
2016-06-27 | ND | |
2016-06-27 | ND | |
2016-06-27 | ND | |
2016-06-29 | ND | |
2016-06-29 | ND | |
2016-06-29 | ND | |
2016-06-29 | ND | |
2016-06-29 | ND | |
2017-05-16 | ND | |
2018-01-29 | 201801000000 | ND |
2018-01-29 | 201801310036 | ND |
2018-04-18 | C18-04-0172A | ND |
2018-04-18 | C18-04-0173A | ND |
2018-04-18 | C18-04-0170A | ND |
2018-04-18 | C18-04-0171A | ND |
2018-06-04 | C18-06-0010A | ND |
2018-06-04 | C18-06-0009A | ND |
2018-06-05 | C18-06-0031A | ND |
2018-06-05 | C18-06-0032A | ND |
2018-06-05 | C18-06-0033A | ND |
2019-01-30 | 201901310193 | ND |
2019-07-17 | C19-07-0162A | ND |
2019-10-21 | C19-10-0070A | ND |