1,2,3-Trichloropropane
City of Palo Alto
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 |
|---|---|---|---|---|
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 6 | 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 |
|---|---|---|
| 2014-04-09 | 3005446 | ND |
| 2014-07-15 | 3063665 | ND |
| 2014-10-22 | 3127662 | ND |
| 2015-01-15 | 3171324 | ND |
| 2018-03-05 | 2706-013-1010 | ND |
| 2018-03-05 | 2706-014-0945 | ND |
| 2018-03-05 | 2706-015-0850 | ND |
| 2018-06-04 | 2706-015-0815 | ND |
| 2018-09-04 | 2706-015-0805 | ND |
| 2018-12-03 | 2706-015-0840 | ND |
| 2019-04-08 | 0007-015-0848 | ND |