1,2,3-Trichloropropane
Harris County Municipal Utility District 391
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.
20
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 |
|---|---|---|---|---|
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-03-17 | AC47163 | ND |
| 2014-03-17 | AC47151 | ND |
| 2014-03-17 | AC47161 | ND |
| 2015-09-17 | AD07613 | ND |
| 2016-03-22 | AD29905 | ND |
| 2016-06-20 | AD41211 | ND |
| 2016-06-20 | AD41199 | ND |
| 2016-06-20 | AD41197 | ND |
| 2016-09-30 | AD52338 | ND |
| 2016-09-30 | AD52356 | ND |
| 2016-11-14 | AD58101 | ND |
| 2016-11-14 | AD58061 | ND |
| 2017-02-02 | AD68459 | ND |
| 2017-02-02 | AD68465 | ND |
| 2017-02-02 | AD68449 | ND |
| 2017-02-02 | AD68433 | ND |
| 2018-06-26 | AE31485 | ND |
| 2018-06-26 | AE31491 | ND |
| 2019-12-16 | AE92449 | ND |
| 2019-12-16 | AE92447 | ND |