1,1,1,2-Tetrachloroethane
Mount Pleasant Waterworks
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
26
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 | 1 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 7 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-01-27 | 14030009501 | ND |
| 2015-01-13 | 15015001701 | ND |
| 2015-04-14 | 15106003901 | ND |
| 2015-07-14 | 15196002901 | ND |
| 2015-10-15 | 15289006401 | ND |
| 2016-01-14 | 16015011701 | ND |
| 2016-04-12 | 16105008901 | ND |
| 2016-07-12 | 16196016601 | ND |
| 2016-07-12 | 16196014701 | ND |
| 2016-10-11 | 16287009001 | ND |
| 2016-10-11 | 16287009301 | ND |
| 2017-01-10 | 17012008801 | ND |
| 2017-01-10 | 17012009101 | ND |
| 2017-04-11 | 17103001301 | ND |
| 2017-04-11 | 17103001601 | ND |
| 2017-07-11 | 17194009101 | ND |
| 2017-07-11 | 17194008801 | ND |
| 2017-10-10 | 17285010901 | ND |
| 2018-04-10 | 18102006209 | ND |
| 2018-07-10 | 18193010201 | ND |
| 2018-10-09 | 18284007201 | ND |
| 2018-12-04 | 18339002009 | ND |
| 2019-01-15 | 19016001501 | ND |
| 2019-08-27 | 19240000801 | ND |
| 2019-08-27 | 19240001101 | ND |
| 2019-10-09 | 19282002301 | ND |