1,2,3-Trichloropropane
San Joaquin Estates Mutual Water Company
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.
8
Samples
0
Samples exceeding legal limit (MCL)
8
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 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | 0.296 ppb | 5 | 5 | 0.230 ppb - 0.350 ppb |
| 2019 | 0.367 ppb | 3 | 3 | 0.320 ppb - 0.430 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 |
|---|---|---|
| 2018-01-02 | 5806-001-0925 | 0.350 ppb |
| 2018-01-29 | 5806-001-1100 | 0.320 ppb |
| 2018-04-02 | 5806-001-1140 | 0.340 ppb |
| 2018-07-19 | 5806-001-1330 | 0.230 ppb |
| 2018-10-04 | 5806-001-1445 | 0.240 ppb |
| 2019-02-08 | 5806-001-0105 | 0.320 ppb |
| 2019-10-03 | 5806-001-1445 | 0.350 ppb |
| 2019-11-15 | 5806-001-1100 | 0.430 ppb |