1,2,4-Trichlorobenzene
Rustic Ridge 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 | N/A | 0 | 0 | N/A |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 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 |
|---|---|---|
| 2016-09-26 | 92313716001VOC | ND |
| 2017-01-16 | 92326539001VOC | ND |
| 2017-04-10 | 92336597002VOC | ND |
| 2017-07-17 | 92348092002VOC | ND |
| 2017-10-16 | 92359457001VOC | ND |
| 2018-01-22 | 92370434002VOC | ND |
| 2018-06-19 | 92389064002VOC | ND |
| 2018-10-15 | 92403565001VOC | ND |
| 2018-11-20 | 92408223001VOC | ND |
| 2019-02-25 | 92419058001_1271 | ND |
| 2019-06-24 | 37729_19-26930 | ND |
| 2019-07-22 | 37729_19-30882 | ND |
| 2019-10-07 | 92448595001_1271 | ND |