1,2,3-Trichloropropane
Kent Water Department
NOTE: Kent Water Department purchases water from City of Tacoma which is required to test for 1,2,3-trichloropropane. Sample information shown below was taken by City of Tacoma.
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | ND | 12 | 0 | ND |
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 20 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 6 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 5 | 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
NOTE: Kent Water Department purchases water from City of Tacoma which is required to test for 1,2,3-trichloropropane. Sample information shown below was taken by City of Tacoma.
| Date | Lab ID | Result |
|---|---|---|
| 2014-08-06 | 201408070493AM | ND |
| 2015-03-10 | 201503110935AM | ND |
| 2015-03-10 | 201503120179AM | ND |
| 2015-03-10 | 201502170548AM | ND |
| 2015-06-09 | 201505060001AM | ND |
| 2015-06-17 | 201505060005AM | ND |
| 2015-06-29 | 201505020034AM | ND |
| 2015-07-06 | 201505020035AM | ND |
| 2015-07-08 | 201507090318AM | ND |
| 2015-07-09 | 201507100395AM | ND |
| 2015-07-09 | 201506300092AM | ND |
| 2015-08-24 | 201508250628AM | ND |
| 2015-09-09 | 201508050013AM | ND |
| 2015-09-09 | 201508050009AM | ND |
| 2015-10-13 | 201509250020AM | ND |
| 2015-12-01 | 201511130086AM | ND |
| 2015-12-02 | 201511130082AM | ND |
| 2015-12-07 | 201511130099AM | ND |
| 2015-12-07 | 201511130096AM | ND |
| 2015-12-08 | 201511130098AM | ND |
| 2015-12-08 | 201511130097AM | ND |
| 2018-02-07 | ND | |
| 2018-03-12 | ND | |
| 2018-03-19 | ND | |
| 2019-01-02 | ND | |
| 2019-07-24 | ND | |
| 2019-12-03 | ND | |
| 2021-06-21 | 4137308 | ND |
| 2021-06-21 | 4137309 | ND |
| 2021-06-21 | 4137307 | ND |
| 2021-06-21 | 4233773 | ND |
| 2021-06-30 | 4142811 | ND |
| 2022-09-15 | 4368469 | ND |
| 2022-09-23 | 4368470 | ND |
| 2022-10-11 | 4363364 | ND |
| 2022-11-15 | 4428454 | ND |
| 2022-11-16 | 4388597 | ND |
| 2023-06-20 | 4542958 | ND |
| 2023-07-12 | 4542959 | ND |
| 2023-07-12 | 4542960 | ND |