1,1,1,2-Tetrachloroethane
Rosalie, Village of
NOTE: Rosalie, Village of purchases water from Thurston County Rural Water which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Thurston County Rural Water.
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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: Rosalie, Village of purchases water from Thurston County Rural Water which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Thurston County Rural Water.
| Date | Lab ID | Result |
|---|---|---|
| 2016-08-29 | ND | |
| 2019-08-12 | 624623 | ND |