1,2,4-Trichlorobenzene
Fitchburg Utility District 1
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 | 6 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 1 | 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 |
|---|---|---|
| 2014-03-04 | 121708001 | ND |
| 2014-08-19 | 152080001 | ND |
| 2014-08-19 | 152081001 | ND |
| 2014-08-19 | 152086001 | ND |
| 2014-08-19 | 152071001 | ND |
| 2014-08-19 | 152068001 | ND |
| 2015-07-30 | 35199919001-1 | ND |
| 2015-07-30 | 35199919002-1 | ND |
| 2015-07-30 | 35199919003-1 | ND |
| 2015-09-09 | 35206535001-1 | ND |
| 2016-08-17 | 939978 | ND |
| 2016-08-17 | 939984 | ND |
| 2016-08-17 | 939982 | ND |
| 2016-08-17 | 939980 | ND |
| 2017-07-19 | 1005313 | ND |
| 2017-07-19 | 1005316 | ND |
| 2017-07-19 | 1005319 | ND |
| 2017-07-19 | 1005322 | ND |
| 2018-07-26 | 1069933 | ND |
| 2019-07-24 | 1136903 | ND |