1,2,4-Trichlorobenzene
Mililani
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 | 7 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-02-11 | 201402140316 | ND |
| 2014-02-18 | 201402200344 | ND |
| 2014-02-18 | 201402200346 | ND |
| 2014-02-25 | 201402280294 | ND |
| 2014-04-07 | 201404090488 | ND |
| 2014-07-08 | 201407100617 | ND |
| 2014-10-24 | 201410280162 | ND |
| 2015-01-20 | 201501220075 | ND |
| 2015-01-29 | 201501300118 | ND |
| 2015-04-10 | 201504140151 | ND |
| 2015-07-13 | 201507150474 | ND |
| 2015-10-16 | 201510210706 | ND |
| 2016-01-14 | ND | |
| 2016-01-14 | ND | |
| 2016-04-11 | ND | |
| 2017-02-01 | ND | |
| 2017-02-09 | ND | |
| 2017-11-01 | ND | |
| 2017-11-14 | ND | |
| 2018-01-11 | 201712280237 | ND |
| 2018-04-10 | 201804130364 | ND |
| 2019-01-29 | 201901300201 | ND |
| 2019-01-29 | 201901300202 | ND |
| 2019-03-12 | 201903020135 | ND |
| 2019-06-27 | 201906190032 | ND |