1,2,3-Trichloropropane
Waialua
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.
26
Samples
0
Samples exceeding legal limit (MCL)
7
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | 0.220 ppb | 1 | 1 | 0.220 ppb |
| 2014 | ND | 1 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | 0.0103 ppb | 4 | 1 | ND - 0.0410 ppb |
| 2019 | 0.0300 ppb | 4 | 1 | ND - 0.120 ppb |
| 2020 | 0.0263 ppb | 3 | 1 | ND - 0.0790 ppb |
| 2021 | 0.0600 ppb | 4 | 1 | ND - 0.240 ppb |
| 2022 | 0.158 ppb | 4 | 1 | ND - 0.630 ppb |
| 2023 | 0.0148 ppb | 5 | 1 | ND - 0.0740 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 |
|---|---|---|
| 2013-08-19 | 201308210478AM | 0.220 ppb |
| 2014-02-07 | 201402110357AM | ND |
| 2018-01-29 | 201801300813 | ND |
| 2018-04-18 | 201804200572 | ND |
| 2018-07-11 | 201807140224 | ND |
| 2018-10-31 | 201811020360 | 0.0410 ppb |
| 2019-01-31 | 201902010245 | 0.120 ppb |
| 2019-04-12 | 201904160172 | ND |
| 2019-08-22 | 201908230136 | ND |
| 2019-10-14 | 201910160313 | ND |
| 2020-03-04 | ND | |
| 2020-04-20 | ND | |
| 2020-07-30 | 0.0790 ppb | |
| 2021-02-10 | ND | |
| 2021-04-23 | ND | |
| 2021-07-16 | ND | |
| 2021-10-20 | 0.240 ppb | |
| 2022-02-18 | ND | |
| 2022-04-22 | ND | |
| 2022-09-07 | ND | |
| 2022-10-19 | 0.630 ppb | |
| 2023-01-24 | ND | |
| 2023-04-21 | 0.0740 ppb | |
| 2023-04-21 | ND | |
| 2023-08-10 | ND | |
| 2023-11-24 | ND |