1,2,4-Trichlorobenzene
Palmer Lake, Town of
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
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 | Result |
---|---|
2014-01-29 | ND |
2014-06-17 | ND |
2014-09-17 | ND |
2015-01-27 | ND |
2015-05-14 | ND |
2015-08-06 | ND |
2016-02-24 | ND |
2016-05-24 | ND |
2016-08-04 | ND |
2017-02-08 | ND |
2017-06-15 | ND |
2017-08-22 | ND |
2018-03-01 | ND |
2018-06-07 | ND |
2018-08-14 | ND |
2019-03-11 | ND |
2019-05-28 | ND |
2019-07-31 | ND |