1,2,4-Trichlorobenzene
Northbrook Mobile Home Park
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-05-07 | 3405-453 | ND |
| 2014-05-07 | 3405-456 | ND |
| 2015-04-01 | 3504-145 | ND |
| 2015-04-01 | 3504-149 | ND |
| 2016-04-12 | 3604-1318-1 | ND |
| 2016-04-12 | 3604-1321-1 | ND |
| 2017-04-25 | 3704-2335-1 | ND |
| 2017-04-25 | 3704-2339-1 | ND |
| 2018-04-04 | 118040344.01 | ND |
| 2018-04-04 | 118040347.01 | ND |
| 2018-07-09 | 118070586.01 | ND |
| 2019-04-10 | 119041180.01 | ND |
| 2019-04-10 | 119041192.01 | ND |