1,2,3-Trichloropropane
North San Saba Water Supply Corporation
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)
1
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 | 4 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | 0.140 ppb | 2 | 1 | ND - 0.280 ppb |
| 2019 | ND | 1 | 0 | ND |
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 |
|---|---|---|
| 2015-01-26 | AC77639 | ND |
| 2015-01-26 | AC77663 | ND |
| 2015-04-09 | AC87860 | ND |
| 2015-08-04 | AD02355 | ND |
| 2016-02-17 | AD23929 | ND |
| 2017-02-09 | AD69982 | ND |
| 2018-08-23 | AE38278 | ND |
| 2018-08-23 | AE38282 | 0.280 ppb |
| 2019-06-03 | AE68918 | ND |