1,2,4-Trichlorobenzene
Newark Water Department
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 | 4 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-03-31 | S553907 | ND |
| 2014-06-30 | S113249 | ND |
| 2014-09-29 | L5279641-15 | ND |
| 2014-12-22 | S603900 | ND |
| 2015-03-31 | S614673 | ND |
| 2015-06-30 | S637153 | ND |
| 2015-09-30 | S637287 | ND |
| 2015-12-30 | S624968 | ND |
| 2015-12-30 | S624967 | ND |
| 2016-03-30 | S637166 | ND |
| 2016-06-29 | S679281 | ND |
| 2016-09-29 | S694852 | ND |
| 2016-12-12 | S719714 | ND |
| 2017-03-28 | S720018 | ND |
| 2017-06-28 | S738591 | ND |
| 2017-09-27 | S760207 | ND |
| 2017-12-19 | S782088 | ND |
| 2018-03-26 | S792137 | ND |
| 2018-06-26 | S808456 | ND |
| 2018-09-26 | S808666 | ND |
| 2018-12-17 | S854837 | ND |
| 2019-03-28 | S870611 | ND |
| 2019-06-27 | S893165 | ND |
| 2019-09-25 | S909224 | ND |
| 2019-11-08 | S925355 | ND |
| 2019-11-08 | S925357 | ND |