1,2,3-Trichloropropane
Sierra Vista Association
1,2,3-Trichloropropane is a potent carcinogen that contaminates drinking water in agricultural regions where it was historically used as soil fumigant. Click here to read more about carcinogenic VOCs.
9
Samples
0
Samples exceeding legal limit (MCL)
9
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 | 0.0710 ppb | 1 | 1 | 0.0710 ppb |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | 0.250 ppb | 4 | 4 | 0.0360 ppb - 0.390 ppb |
| 2019 | 0.358 ppb | 4 | 4 | 0.280 ppb - 0.440 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.0007 ppb
The EWG Health Guideline of 0.0007 ppb for 1,2,3-trichloropropane 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 cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2016-03-25 | 5810-001-1015 | 0.0710 ppb |
| 2018-03-06 | 5867-001-0900 | 0.195 ppb |
| 2018-06-11 | 5867-001-0900 | 0.0360 ppb |
| 2018-09-12 | 5867-001-0830 | 0.390 ppb |
| 2018-12-11 | 5867-001-0930 | 0.380 ppb |
| 2019-03-30 | 5867-001-1230 | 0.440 ppb |
| 2019-06-13 | 5867-001-1030 | 0.350 ppb |
| 2019-09-09 | 5867-001-0840 | 0.360 ppb |
| 2019-12-11 | 5867-001-0950 | 0.280 ppb |