1,1-Dichloroethane
Rra Arrowhead Lake Lots
NOTE: Rra Arrowhead Lake Lots purchases water from City of Wichita Falls which is required to test for 1,1-dichloroethane. Sample information shown below was taken by City of Wichita Falls.
1,1-Dichloroethane is used in industrial chemical synthesis; in plastics, paint, varnish and finish removers; and as a pesticide. It can cause cancer.
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 | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 3 ppb
The EWG Health Guideline of 3 ppb for 1,1-dichloroethane 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: Rra Arrowhead Lake Lots purchases water from City of Wichita Falls which is required to test for 1,1-dichloroethane. Sample information shown below was taken by City of Wichita Falls.
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-31 | 3000250 | ND |
| 2014-08-14 | 3083611 | ND |
| 2014-09-08 | 3099460 | ND |
| 2014-11-17 | 3140623 | ND |
| 2014-12-08 | 3151423 | ND |
| 2015-02-09 | 3183776 | ND |
| 2015-03-24 | 3213444 | ND |
| 2015-05-11 | 3239867 | ND |
| 2018-08-21 | Q1833473002 | ND |
| 2018-11-14 | Q1846491001 | ND |
| 2019-05-14 | Q1925075001 | ND |
| 2019-08-19 | Q1956634012 | ND |
| 2020-09-23 | Q2037767001 | ND |
| 2020-11-10 | Q2044047001 | ND |
| 2021-02-03 | Q2103346004 | ND |
| 2021-08-16 | Q2121825003 | ND |
| 2022-08-17 | Q2224340023 | ND |
| 2022-08-17 | Q2224340018 | ND |
| 2023-08-21 | Q2335127007 | ND |
| 2023-08-21 | Q2335127009 | ND |