1,2,4-Trichlorobenzene
Naval Support Activity-nw
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 | 34 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 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 |
|---|---|---|
| 2014-07-30 | 14-11302 | ND |
| 2014-07-30 | 14-11303 | ND |
| 2014-08-12 | 14-12048 | ND |
| 2014-08-12 | 14-12045 | ND |
| 2014-08-12 | 14-12049 | ND |
| 2014-08-12 | 14-12046 | ND |
| 2014-08-12 | 14-12050 | ND |
| 2014-08-12 | 14-12044 | ND |
| 2014-08-12 | 14-12047 | ND |
| 2014-08-25 | 14-12765 | ND |
| 2014-08-25 | 14-12766 | ND |
| 2014-08-25 | 14-12767 | ND |
| 2014-08-25 | 14-12768 | ND |
| 2014-09-08 | 14-13540 | ND |
| 2014-09-08 | 14-13538 | ND |
| 2014-09-08 | 14-13539 | ND |
| 2014-09-08 | 14-13537 | ND |
| 2014-09-22 | 14-14395 | ND |
| 2014-09-22 | 14-14393 | ND |
| 2014-09-22 | 14-14394 | ND |
| 2014-09-22 | 14-14392 | ND |
| 2014-10-10 | 14-15405 | ND |
| 2014-10-10 | 14-15403 | ND |
| 2014-10-10 | 14-15406 | ND |
| 2014-10-10 | 14-15404 | ND |
| 2014-10-10 | 14-15402 | ND |
| 2014-10-20 | 14-15917 | ND |
| 2014-10-20 | 14-15915 | ND |
| 2014-10-20 | 14-15916 | ND |
| 2014-10-20 | 14-15918 | ND |
| 2014-10-20 | 14-15914 | ND |
| 2014-10-24 | 14-16212 | ND |
| 2014-10-24 | 14-15213 | ND |
| 2014-10-24 | 14-16213 | ND |
| 2015-02-15 | 460013-JAMES R. | ND |
| 2015-04-23 | 460013-JAMES R. | ND |
| 2015-07-23 | 460013-JAMES R. | ND |
| 2015-10-22 | 460013-JAMES R. | ND |
| 2016-01-28 | 16-01344 | ND |
| 2017-01-13 | 17-00704-VOC | ND |
| 2018-01-23 | 18-01369 | ND |
| 2019-01-24 | 19-01404 | ND |