1,2,4-Trichlorobenzene
Lake Windcrest Water System
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 | 1 | 0 | ND |
2015 | ND | 5 | 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 |
---|---|---|
2014-06-26 | AC58221 | ND |
2015-04-22 | AC89248 | ND |
2015-04-22 | AC89250 | ND |
2015-04-22 | AC89252 | ND |
2015-09-28 | AD08762 | ND |
2015-11-02 | AD12226 | ND |
2016-07-06 | AD43189 | ND |
2016-07-06 | AD43187 | ND |
2016-07-06 | AD43185 | ND |
2017-07-27 | AD91118 | ND |
2017-10-05 | AD99585 | ND |
2017-10-05 | AD99583 | ND |
2018-07-25 | AE34522 | ND |
2018-07-25 | AE34526 | ND |
2018-07-25 | AE34528 | ND |
2019-11-07 | AE88943 | ND |
2019-11-07 | AE88903 | ND |
2019-11-07 | AE88905 | ND |