1,1,1,2-Tetrachloroethane
Redhill Water
NOTE: Redhill Water purchases water from Alma Waterworks which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Alma Waterworks.
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 | 8 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 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: Redhill Water purchases water from Alma Waterworks which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Alma Waterworks.
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-12 | 14072007001 | ND |
| 2015-01-20 | 15022002209 | ND |
| 2016-01-05 | 16008005401 | ND |
| 2017-01-16 | 17019000501 | ND |
| 2018-01-01 | 18004012709 | ND |
| 2019-02-05 | 19038001501 | ND |