1,1,1,2-Tetrachloroethane
Bloomington
NOTE: Bloomington purchases water from Minneapolis which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Minneapolis.
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 1 ppb
The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
NOTE: Bloomington purchases water from Minneapolis which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Minneapolis.
| Date | Lab ID | Result |
|---|---|---|
| 2018-05-03 | 18E0324-01 | ND |
| 2019-10-09 | 19J0500-01 | ND |
| 2020-03-18 | 20C0794-01 | ND |
| 2020-03-18 | 20C0794-02 | ND |
| 2020-05-20 | 20E1211-01 | ND |
| 2020-07-24 | 20G1757-01 | ND |
| 2020-10-27 | 20J1367-01 | ND |
| 2021-04-20 | 21D1030-02 | ND |
| 2021-10-21 | 21J1097-01 | ND |
| 2022-01-26 | 22A0928-01 | ND |
| 2022-02-07 | 22B0406-01 | ND |
| 2023-04-13 | 23D0754-01 | ND |
| 2023-04-13 | 23D0754-02 | ND |