1,2,4-Trichlorobenzene
Stagecoach S/d
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 | 5 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 6 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-01-28 | C316312-03 | ND |
2014-01-28 | C316312-01 | ND |
2014-04-09 | C403286-01 | ND |
2014-07-16 | C407951-01 | ND |
2014-10-21 | C412146-01 | ND |
2015-01-13 | ND | |
2016-01-19 | C516141-01 | ND |
2016-10-14 | CZ13877-01 | ND |
2017-01-24 | CZ18960-01 | ND |
2017-01-24 | CZ18958-03 | ND |
2017-01-24 | CZ18958-01 | ND |
2017-04-25 | CA03099-01 | ND |
2017-07-28 | CA07826-01 | ND |
2017-11-16 | CA13326-01 | ND |
2018-02-21 | CA18460-01 | ND |
2018-05-16 | CB03528-01 | ND |
2018-07-19 | CB08253-01 | ND |
2018-10-16 | CB14421-01 | ND |
2019-10-30 | CC15944-01 | ND |