1,2,3-Trichloropropane
San Lorenzo Valley Water District
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.
40
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 | 16 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 24 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-01-21 | 201401230101AM | ND |
| 2014-01-21 | 201401230103AM | ND |
| 2014-01-22 | 201401280188AM | ND |
| 2014-01-22 | 201401280185AM | ND |
| 2014-01-27 | 201401290321AM | ND |
| 2014-01-28 | 201401300128AM | ND |
| 2014-01-28 | 201401300126AM | ND |
| 2014-04-23 | 201404250083AM | ND |
| 2014-07-09 | 201407110262AM | ND |
| 2014-07-09 | 201407110260AM | ND |
| 2014-07-15 | 201407170536AM | ND |
| 2014-07-16 | 201407180197AM | ND |
| 2014-07-16 | 201407180201AM | ND |
| 2014-07-16 | 201407180199AM | ND |
| 2014-07-16 | 201407180184AM | ND |
| 2014-10-14 | 201410160335AM | ND |
| 2018-03-01 | 9590-025-0945 | ND |
| 2018-03-01 | 9590-026-0910 | ND |
| 2018-03-01 | 9590-022-1050 | ND |
| 2018-03-01 | 9590-010-1115 | ND |
| 2018-03-06 | 1233-034-1345 | ND |
| 2018-03-06 | 1233-024-1045 | ND |
| 2018-04-23 | 9590-024-1500 | ND |
| 2018-05-07 | 9590-034-0900 | ND |
| 2018-05-08 | 9590-010-1145 | ND |
| 2018-05-08 | 9590-022-1145 | ND |
| 2018-05-15 | 9590-026-0830 | ND |
| 2018-05-15 | 9590-025-0845 | ND |
| 2018-08-02 | 9590-034-0825 | ND |
| 2018-08-02 | 9590-010-0910 | ND |
| 2018-08-02 | 9590-022-0850 | ND |
| 2018-08-02 | 9590-025-0950 | ND |
| 2018-08-02 | 9590-026-1010 | ND |
| 2018-09-19 | 9590-024-1110 | ND |
| 2018-10-04 | 9590-024-0810 | ND |
| 2018-10-04 | 9590-025-0850 | ND |
| 2018-10-04 | 9590-026-0900 | ND |
| 2018-10-04 | 9590-034-0825 | ND |
| 2018-10-08 | 9590-022-0950 | ND |
| 2018-10-08 | 9590-010-0940 | ND |