1,2,3-Trichloropropane
Downtown Graton Mutual Water System
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.
10
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 |
|---|---|---|---|---|
| 2018 | ND | 7 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 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 |
|---|---|---|
| 2018-03-29 | CA4901246_002_002-201803291405 | ND |
| 2018-06-29 | CA4901246_002_002-201806291600 | ND |
| 2018-06-29 | CA4901246_003_003-201806291550 | ND |
| 2018-09-28 | CA4901246_003_003-201809281535 | ND |
| 2018-09-28 | CA4901246_002_002-201809281545 | ND |
| 2018-12-13 | CA4901246_002_002-201812131525 | ND |
| 2018-12-13 | CA4901246_003_003-201812131515 | ND |
| 2019-03-28 | CA4901246_003_003-201903281030 | ND |
| 2021-03-29 | CA4901246_002_002-202103291350 | ND |
| 2022-03-24 | CA4901246_003_003-202203241450 | ND |