1,2,3-Trichloropropane
Madera Valley Water Supply Corporation
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.
25
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 | 6 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
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 |
|---|---|---|
| 2018-07-18 | Q1828958005 | ND |
| 2018-07-18 | Q1828958008 | ND |
| 2018-07-18 | Q1828958010 | ND |
| 2018-07-18 | Q1828958012 | ND |
| 2018-07-18 | Q1828958014 | ND |
| 2018-07-18 | Q1828958003 | ND |
| 2019-06-20 | Q1938291004 | ND |
| 2019-06-20 | Q1938291006 | ND |
| 2019-06-20 | Q1938291008 | ND |
| 2020-08-17 | Q2033215001 | ND |
| 2020-08-17 | Q2033215003 | ND |
| 2020-08-17 | Q2033215005 | ND |
| 2020-12-02 | Q2048267001 | ND |
| 2021-03-03 | Q2105579001 | ND |
| 2021-03-03 | Q2105579003 | ND |
| 2021-03-15 | Q2106895001 | ND |
| 2021-03-15 | Q2106895003 | ND |
| 2021-09-13 | Q2125100001 | ND |
| 2021-09-13 | Q2125100003 | ND |
| 2022-02-07 | Q2204392003 | ND |
| 2022-02-07 | Q2204392005 | ND |
| 2022-08-31 | Q2225814003 | ND |
| 2023-04-20 | Q2314887001 | ND |
| 2023-04-20 | Q2314887003 | ND |
| 2023-08-30 | Q2337553001 | ND |