1,2,3-Trichloropropane
Harris County MUD 55 Heritage Park
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.
24
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 |
|---|---|---|---|---|
| 2013 | ND | 8 | 0 | ND |
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | 0.0125 ppb | 4 | 1 | ND - 0.0500 ppb |
| 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 |
|---|---|---|
| 2013-05-23 | Q1301474005 | ND |
| 2013-05-23 | Q1301474003 | ND |
| 2013-05-23 | Q1301474001 | ND |
| 2013-08-27 | Q1306116003 | ND |
| 2013-08-27 | Q1306116001 | ND |
| 2013-11-04 | Q1311140001 | ND |
| 2013-11-04 | Q1311140005 | ND |
| 2013-11-04 | Q1311140003 | ND |
| 2014-02-14 | AC43132 | ND |
| 2014-02-14 | AC43134 | ND |
| 2014-02-18 | Q1404898003 | ND |
| 2014-02-18 | Q1404898001 | ND |
| 2015-01-16 | AC76642 | ND |
| 2015-01-16 | AC76640 | ND |
| 2016-02-10 | AD23096 | ND |
| 2016-06-20 | AD41191 | ND |
| 2017-01-25 | AD66872 | ND |
| 2017-01-25 | AD66804 | ND |
| 2017-05-24 | AD85528 | 0.0500 ppb |
| 2017-05-24 | AD85492 | ND |
| 2018-01-23 | AE09858 | ND |
| 2018-01-23 | AE09856 | ND |
| 2019-02-26 | AE56014 | ND |
| 2019-02-26 | AE56012 | ND |