1,2,3-Trichloropropane
City of Houston Willow Chase
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.
28
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-02-03 | AC41060 | ND |
| 2014-02-03 | AC41062 | ND |
| 2014-02-03 | AC41064 | ND |
| 2014-02-03 | AC41090 | ND |
| 2015-05-29 | AC93893 | ND |
| 2015-05-29 | AC93899 | ND |
| 2015-05-29 | AC93891 | ND |
| 2015-05-29 | AC93875 | ND |
| 2016-03-03 | AD26935 | ND |
| 2016-03-03 | AD26933 | ND |
| 2016-03-03 | AD26925 | ND |
| 2016-03-03 | AD26929 | ND |
| 2017-03-02 | AD73224 | ND |
| 2017-03-02 | AD73228 | ND |
| 2017-03-02 | AD73122 | ND |
| 2017-03-02 | AD73126 | ND |
| 2017-05-31 | AD86207 | ND |
| 2017-05-31 | AD86209 | ND |
| 2017-05-31 | AD86149 | ND |
| 2017-05-31 | AD86147 | ND |
| 2018-04-11 | AE22081 | ND |
| 2018-04-11 | AE22085 | ND |
| 2018-04-11 | AE22055 | ND |
| 2018-04-11 | AE22057 | ND |
| 2019-02-28 | AE56578 | ND |
| 2019-02-28 | AE56614 | ND |
| 2019-02-28 | AE56582 | ND |
| 2019-02-28 | AE56580 | ND |