1,2,3-Trichloropropane
Harris County Municipal Utility District 172
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.
15
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 | 2 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-04-23 | AC51539 | ND |
| 2014-12-08 | AC73911 | ND |
| 2015-02-18 | AC80954 | ND |
| 2016-03-04 | AD27274 | ND |
| 2017-02-14 | AD70650 | ND |
| 2017-03-15 | AD75228 | ND |
| 2017-06-08 | AD86871 | ND |
| 2017-06-08 | AD86903 | ND |
| 2017-07-11 | AD88921 | ND |
| 2017-07-11 | AD88941 | ND |
| 2017-10-24 | AE02164 | ND |
| 2017-10-24 | AE02200 | ND |
| 2018-01-31 | AE11569 | ND |
| 2018-01-31 | AE11637 | ND |
| 2019-01-31 | AE52441 | ND |