1,2,3-Trichloropropane
City of San Juan
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.
22
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 | 8 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-01-29 | Q1402780003 | ND |
| 2014-01-29 | Q1402780001 | ND |
| 2014-04-22 | Q1412613001 | ND |
| 2014-04-22 | Q1412613003 | ND |
| 2014-07-23 | AC60704 | ND |
| 2014-07-23 | AC60680 | ND |
| 2014-10-21 | Q1453178001 | ND |
| 2014-10-21 | Q1453178003 | ND |
| 2015-07-14 | AC99429 | ND |
| 2015-07-14 | AC99405 | ND |
| 2016-01-29 | AD21161 | ND |
| 2016-04-29 | AD34878 | ND |
| 2016-07-14 | AD44283 | ND |
| 2016-07-14 | AD44293 | ND |
| 2017-07-14 | AD89528 | ND |
| 2017-07-14 | AD89530 | ND |
| 2018-08-16 | AE37385 | ND |
| 2018-08-16 | AE37373 | ND |
| 2019-02-26 | AE56024 | ND |
| 2019-05-21 | AE67458 | ND |
| 2019-09-04 | AE82071 | ND |
| 2019-09-04 | AE82075 | ND |