1,1,1,2-Tetrachloroethane
Mccoy Water Supply Corporation
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
25
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 | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 7 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 6 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-05 | AE12259 | ND |
| 2018-02-05 | AE12261 | ND |
| 2018-02-05 | AE12257 | ND |
| 2019-06-05 | AE69256 | ND |
| 2019-06-05 | AE69258 | ND |
| 2019-11-18 | AE89581 | ND |
| 2020-03-26 | AF04716 | ND |
| 2020-03-26 | AF04726 | ND |
| 2020-03-26 | AF04728 | ND |
| 2020-06-10 | AF14868 | ND |
| 2020-06-10 | AF14870 | ND |
| 2020-07-07 | AF18407 | ND |
| 2020-07-07 | AF18403 | ND |
| 2021-06-28 | AF59681 | ND |
| 2021-09-20 | AF70457 | ND |
| 2021-09-20 | AF70459 | ND |
| 2022-07-05 | AG03259 | ND |
| 2022-07-05 | AG03261 | ND |
| 2022-07-05 | AG03263 | ND |
| 2023-05-03 | AG39139 | ND |
| 2023-05-03 | AG39145 | ND |
| 2023-05-03 | AG39151 | ND |
| 2023-05-03 | AG39153 | ND |
| 2023-09-15 | AG56654 | ND |
| 2023-10-02 | AG58143 | ND |