1,2,4-Trichlorobenzene
Harding Woods 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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2015-07-06 | 2081460001 | ND |
| 2016-03-16 | 2130860001 | ND |
| 2016-05-11 | 2143440001 | ND |
| 2016-09-22 | 2177614001 | ND |
| 2016-10-04 | 2180247001 | ND |
| 2017-02-01 | 2205936001 | ND |
| 2017-06-12 | 2238059001 | ND |
| 2017-09-22 | 2264664001 | ND |
| 2017-12-27 | 7039747001 | ND |
| 2018-01-11 | 7040264001-VOC | ND |
| 2018-04-10 | 7048414001-VOC | ND |
| 2019-01-16 | 7077042001-VOC | ND |
| 2019-08-14 | 70101714001-VOC | ND |