1,1,1,2-Tetrachloroethane
Cross Roads Special Utility District
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
19
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-06-11 | Q1823067008 | ND |
| 2018-06-11 | Q1823067005 | ND |
| 2019-10-29 | Q1974604001 | ND |
| 2019-10-29 | Q1974604003 | ND |
| 2020-12-17 | Q2050079006 | ND |
| 2020-12-17 | Q2050079008 | ND |
| 2021-03-02 | Q2105308006 | ND |
| 2021-06-24 | Q2116616005 | ND |
| 2021-09-21 | Q2125859006 | ND |
| 2021-11-30 | Q2133008006 | ND |
| 2021-11-30 | Q2133008010 | ND |
| 2021-11-30 | Q2133008008 | ND |
| 2022-03-22 | Q2209157009 | ND |
| 2022-03-22 | Q2209157011 | ND |
| 2022-03-22 | Q2209157013 | ND |
| 2022-05-26 | Q2215240003 | ND |
| 2023-02-27 | Q2307812003 | ND |
| 2023-07-20 | Q2328742001 | ND |
| 2023-10-16 | Q2343886003 | ND |