1,2,3-Trichloropropane
City of Colusa
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.
20
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 | N/A | 0 | 0 | N/A |
| 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 | 20 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-02-12 | CA0610002_003_003-201802120800 | ND |
| 2018-02-12 | CA0610002_004_004-201802120815 | ND |
| 2018-02-12 | CA0610002_002_002-201802120740 | ND |
| 2018-03-13 | CA0610002_006_006-201803130735 | ND |
| 2018-03-13 | CA0610002_005_005-201803130725 | ND |
| 2018-06-11 | CA0610002_006_006-201806110900 | ND |
| 2018-06-12 | CA0610002_005_005-201806120700 | ND |
| 2018-06-12 | CA0610002_004_004-201806120715 | ND |
| 2018-06-12 | CA0610002_003_003-201806120745 | ND |
| 2018-06-12 | CA0610002_002_002-201806120735 | ND |
| 2018-08-07 | CA0610002_004_004-201808070830 | ND |
| 2018-08-07 | CA0610002_005_005-201808070900 | ND |
| 2018-08-07 | CA0610002_006_006-201808070920 | ND |
| 2018-08-13 | CA0610002_002_002-201808130920 | ND |
| 2018-08-13 | CA0610002_003_003-201808130940 | ND |
| 2018-11-19 | CA0610002_006_006-201811190900 | ND |
| 2018-12-17 | CA0610002_004_004-201812170720 | ND |
| 2018-12-17 | CA0610002_005_005-201812170745 | ND |
| 2018-12-18 | CA0610002_003_003-201812180710 | ND |
| 2018-12-18 | CA0610002_002_002-201812180700 | ND |