1,2,3-Trichloropropane
City of Daly City
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.
48
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 | 5 | 0 | ND |
| 2014 | ND | 15 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 21 | 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 |
|---|---|---|
| 2013-11-05 | 1311128-001A | ND |
| 2013-11-05 | 1311127-001A | ND |
| 2013-11-05 | 1311131-001A | ND |
| 2013-11-05 | 1311130-001A | ND |
| 2013-11-05 | 1311129-001A | ND |
| 2014-02-04 | 1402099-001A | ND |
| 2014-02-04 | 1402098-001A | ND |
| 2014-02-04 | 1402100-001A | ND |
| 2014-02-04 | 1402097-001A | ND |
| 2014-02-04 | 1402101-001A | ND |
| 2014-05-07 | 1405257-001A | ND |
| 2014-05-07 | 1405259-001A | ND |
| 2014-05-07 | 1405255-001A | ND |
| 2014-05-07 | 1405258-001A | ND |
| 2014-05-07 | 1405256-001A | ND |
| 2014-08-13 | 1408519-001A | ND |
| 2014-08-13 | 1408515-001A | ND |
| 2014-08-13 | 1408518-001A | ND |
| 2014-08-13 | 1408520-001A | ND |
| 2014-08-13 | 1408517-001A | ND |
| 2017-08-15 | 5867-013-0805 | ND |
| 2017-08-15 | 5867-018-0845 | ND |
| 2017-08-15 | 5867-010-0920 | ND |
| 2018-01-10 | 5867-010-0920 | ND |
| 2018-01-10 | 5867-013-1200 | ND |
| 2018-01-10 | 5867-018-0855 | ND |
| 2018-02-07 | 5867-015-0930 | ND |
| 2018-02-07 | 5867-016-0620 | ND |
| 2018-02-07 | 5867-017-0800 | ND |
| 2018-04-11 | 5867-010-0730 | ND |
| 2018-04-11 | 5867-018-0745 | ND |
| 2018-05-09 | 5867-016-0700 | ND |
| 2018-05-09 | 5867-015-0930 | ND |
| 2018-05-09 | 5867-017-0850 | ND |
| 2018-07-11 | 5867-018-0805 | ND |
| 2018-07-11 | 5867-010-0740 | ND |
| 2018-08-08 | 5867-016-0700 | ND |
| 2018-08-08 | 5867-017-0810 | ND |
| 2018-08-08 | 5867-015-1025 | ND |
| 2018-10-03 | 5867-010-0800 | ND |
| 2018-10-03 | 5867-018-0900 | ND |
| 2018-11-14 | 5867-016-0655 | ND |
| 2018-11-14 | 5867-015-0940 | ND |
| 2018-11-14 | 5867-017-0815 | ND |
| 2019-01-09 | 5867-018-0640 | ND |
| 2019-01-09 | 5867-010-0920 | ND |
| 2019-02-14 | 5867-018-0800 | ND |
| 2019-02-14 | 5867-010-0830 | ND |