1,1,1,2-Tetrachloroethane
City of Rule
NOTE: City of Rule purchases water from North Central Texas Municipal Water Authority which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by North Central Texas Municipal Water Authority.
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 | 1 | 0 | ND |
| 2022 | ND | 1 | 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: City of Rule purchases water from North Central Texas Municipal Water Authority which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by North Central Texas Municipal Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-13 | Q1806366023 | ND |
| 2018-02-13 | Q1806366017 | ND |
| 2018-05-15 | Q1819778005 | ND |
| 2018-09-10 | Q1835655007 | ND |
| 2019-09-10 | Q1963432002 | ND |
| 2019-09-10 | Q1963432004 | ND |
| 2019-09-10 | Q1963432006 | ND |
| 2019-09-10 | Q1963432008 | ND |
| 2020-05-26 | Q2020617010 | ND |
| 2020-05-26 | Q2020617012 | ND |
| 2020-05-26 | Q2020617014 | ND |
| 2020-09-15 | Q2036511001 | ND |
| 2021-03-01 | Q2105128004 | ND |
| 2021-03-01 | Q2105128002 | ND |
| 2021-05-18 | Q2112967013 | ND |
| 2021-08-24 | Q2122978005 | ND |
| 2021-08-24 | Q2122978013 | ND |
| 2021-12-09 | Q2134685004 | ND |
| 2022-03-02 | Q2207242006 | ND |
| 2022-03-02 | Q2207242008 | ND |
| 2022-03-02 | Q2207242010 | ND |
| 2022-09-07 | Q2226614008 | ND |
| 2023-03-08 | Q2309188005 | ND |
| 2023-05-16 | Q2318416003 | ND |
| 2023-05-16 | Q2318416005 | ND |
| 2023-09-05 | Q2338005004 | ND |