1,2,4-Trichlorobenzene
Lee County Utilities
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 | 0.300 ppb | 1 | 1 | 0.300 ppb |
2017 | ND | 5 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | 0.0600 ppb | 2 | 1 | ND - 0.120 ppb |
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 |
---|---|
2014-02-05 | ND |
2014-03-03 | ND |
2014-04-16 | ND |
2014-04-16 | ND |
2014-10-08 | ND |
2015-10-12 | ND |
2016-10-03 | 0.300 ppb |
2017-02-01 | ND |
2017-03-02 | ND |
2017-04-03 | ND |
2017-04-03 | ND |
2017-10-05 | ND |
2018-06-11 | ND |
2018-07-09 | ND |
2018-10-01 | ND |
2018-10-16 | ND |
2019-01-07 | 0.120 ppb |
2019-10-07 | ND |