1,2,4-Trichlorobenzene
Aquarion Water Company of Connecticut - Simsbury 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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 14 | 0 | ND |
| 2015 | ND | 13 | 0 | ND |
| 2016 | ND | 13 | 0 | ND |
| 2017 | ND | 13 | 0 | ND |
| 2018 | ND | 12 | 0 | ND |
| 2019 | ND | 14 | 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 |
|---|---|---|
| 2014-02-04 | 201401677-VOC1 | ND |
| 2014-02-07 | 201401908-VOC1 | ND |
| 2014-05-07 | 201406328-VOC1 | ND |
| 2014-05-07 | 201406324-VOC1 | ND |
| 2014-05-07 | 2014427241-VOC1 | ND |
| 2014-05-07 | 201406338-VOC1 | ND |
| 2014-05-07 | 201406335-VOC1 | ND |
| 2014-05-07 | 201406333-VOC1 | ND |
| 2014-05-07 | 201406331-VOC1 | ND |
| 2014-08-08 | 201411392-VOC1 | ND |
| 2014-08-14 | 201411867-VOC1 | ND |
| 2014-11-11 | 201417230-VOC1 | ND |
| 2014-11-20 | 201417781-VOC1 | ND |
| 2014-12-04 | 201418312-VOC1 | ND |
| 2015-02-06 | 201501765-VOC1 | ND |
| 2015-02-19 | 201502317-VOC1 | ND |
| 2015-05-07 | 201505805-VOC1 | ND |
| 2015-05-07 | 201505815-VOC1 | ND |
| 2015-05-07 | 201505809-VOC1 | ND |
| 2015-05-07 | 201505811-VOC1 | ND |
| 2015-05-07 | 201505813-VOC1 | ND |
| 2015-05-12 | 201506049-VOC1 | ND |
| 2015-05-21 | 201506522-VOC1 | ND |
| 2015-08-05 | 201510663-VOC1 | ND |
| 2015-08-19 | 201511753-VOC1 | ND |
| 2015-11-04 | 201515891-VOC1 | ND |
| 2015-11-10 | 201516225-VOC1 | ND |
| 2016-02-03 | 201601684-VOC1 | ND |
| 2016-02-10 | 201602061-VOC1 | ND |
| 2016-05-04 | 201605682-VOC1 | ND |
| 2016-05-04 | 201605691-VOC1 | ND |
| 2016-05-04 | 201605686-VOC1 | ND |
| 2016-05-04 | 201605684-VOC1 | ND |
| 2016-05-04 | 201605688-VOC1 | ND |
| 2016-05-04 | 201605678-VOC1 | ND |
| 2016-05-12 | 201606183-VOC1 | ND |
| 2016-08-03 | 201610124-VOC1 | ND |
| 2016-08-17 | 201610953-VOC1 | ND |
| 2016-11-04 | 201615626-VOC1 | ND |
| 2016-11-11 | 201616251-VOC1 | ND |
| 2017-02-08 | 201702277-VOC1 | ND |
| 2017-02-08 | 201702273-VOC1 | ND |
| 2017-02-08 | 201702275-VOC1 | ND |
| 2017-02-08 | 201702280-VOC1 | ND |
| 2017-02-08 | 201702268-VOC1 | ND |
| 2017-02-16 | 201702710-VOC1 | ND |
| 2017-03-08 | 201703617-VOC1 | ND |
| 2017-05-03 | 201706394-VOC1 | ND |
| 2017-05-11 | 201706951-VOC1 | ND |
| 2017-08-03 | 201711907-VOC1 | ND |
| 2017-08-17 | 201712932-VOC1 | ND |
| 2017-11-02 | 201717254-VOC1 | ND |
| 2017-11-09 | 201717694-VOC1 | ND |
| 2018-02-08 | 201801800-VOC1 | ND |
| 2018-02-08 | 201801804-VOC1 | ND |
| 2018-04-04 | 201804080-VOC1 | ND |
| 2018-04-04 | 201804075-VOC1 | ND |
| 2018-04-04 | 201804071-VOC1 | ND |
| 2018-04-04 | 201804077-VOC1 | ND |
| 2018-04-04 | 201804073-VOC1 | ND |
| 2018-05-03 | 201806044-VOC1 | ND |
| 2018-05-08 | 201806393-VOC1 | ND |
| 2018-08-09 | 201812047-VOC1 | ND |
| 2018-11-07 | 201817345-VOC1 | ND |
| 2018-11-07 | 201817335-VOC1 | ND |
| 2019-02-05 | 201901699-VOC1 | ND |
| 2019-02-05 | 201901703-VOC1 | ND |
| 2019-03-06 | 201902902-VOC1 | ND |
| 2019-03-06 | 201902905-VOC1 | ND |
| 2019-03-06 | 201902900-VOC1 | ND |
| 2019-03-06 | 201902898-VOC1 | ND |
| 2019-03-06 | 201902896-VOC1 | ND |
| 2019-03-06 | 201902893-VOC1 | ND |
| 2019-05-09 | 201906456-VOC1 | ND |
| 2019-05-09 | 201906438-VOC1 | ND |
| 2019-08-07 | 201912408-VOC1 | ND |
| 2019-08-14 | 201912905-VOC1 | ND |
| 2019-11-06 | 201918268-VOC1 | ND |
| 2019-11-14 | 201918766-VOC1 | ND |