1,2,3-Trichloropropane
Home Gardens County 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.
0
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 | 0.00211 ppb | 204 | 34 | ND - 0.0370 ppb |
| 2019 | 0.00187 ppb | 186 | 22 | ND - 0.0270 ppb |
| 2020 | 0.00158 ppb | 173 | 18 | ND - 0.0240 ppb |
| 2021 | 0.00101 ppb | 188 | 16 | ND - 0.0210 ppb |
| 2022 | 0.000649 ppb | 173 | 10 | ND - 0.0220 ppb |
| 2023 | 0.000795 ppb | 190 | 13 | ND - 0.0190 ppb |
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 |
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