1,2,3-Trichloropropane
City of Cupertino
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.
16
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 |
|---|---|---|---|---|
| 2013 | ND | 6 | 0 | ND |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 8 | 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 |
|---|---|---|
| 2013-02-06 | 2776510 | ND |
| 2013-02-06 | 2776851 | ND |
| 2013-05-10 | 2824093 | ND |
| 2013-08-05 | 2871968 | ND |
| 2013-08-12 | 2876804 | ND |
| 2013-11-06 | 2927600 | ND |
| 2018-01-18 | 5867-002-1020 | ND |
| 2018-01-18 | 5867-003-1005 | ND |
| 2018-06-07 | 9590-002-1100 | ND |
| 2018-06-07 | 9590-003-1115 | ND |
| 2018-09-06 | 5810-002-1057 | ND |
| 2018-09-06 | 5810-003-1031 | ND |
| 2018-11-15 | 5810-002-1030 | ND |
| 2018-11-15 | 5810-003-1015 | ND |
| 2019-02-21 | 5810-002-1300 | ND |
| 2019-03-07 | 5810-003-1100 | ND |