1,2,3-Trichloropropane
City of Great Falls
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.
11
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | ND | 1 | 0 | ND |
| 2014 | ND | 5 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 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 |
|---|---|---|
| 2013-12-11 | A3K1664-01A | ND |
| 2014-03-18 | A4C0569-01A | ND |
| 2014-05-05 | B14050434-001C | ND |
| 2014-06-16 | A4C2308-01A | ND |
| 2014-08-05 | B14080466-001C | ND |
| 2014-09-15 | A4I0141-01A | ND |
| 2015-06-02 | B15060379-001B | ND |
| 2016-06-13 | B16061189-001A | ND |
| 2017-06-06 | B17060662-001A | ND |
| 2018-01-24 | B18011760-001F | ND |
| 2019-02-11 | B19020678-001F | ND |