1,1,1,2-Tetrachloroethane
Mcfarland Waterworks
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
13
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 |
|---|---|---|---|---|
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 3 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2014-08-18 | 151723001 | ND |
| 2014-08-20 | 152627001 | ND |
| 2014-08-20 | 152638001 | ND |
| 2014-08-20 | 152630001 | ND |
| 2015-08-24 | 213246001 | ND |
| 2015-09-09 | 216317001 | ND |
| 2016-07-19 | 266857001 | ND |
| 2016-09-09 | 276443001 | ND |
| 2017-02-09 | 299445001 | ND |
| 2017-02-09 | 299444001 | ND |
| 2017-09-20 | 343734001 | ND |
| 2018-07-27 | 397389001 | ND |
| 2019-09-19 | 471339001 | ND |