1,1,1,2-Tetrachloroethane
Coal Grove Public Water System
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
18
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 | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-06-02 | 14F0182-01 | ND |
| 2015-04-30 | 15E0042-01 | ND |
| 2015-06-02 | 15F0176-01 | ND |
| 2015-06-02 | 15F0176-02 | ND |
| 2016-06-01 | 16F0137-02 | ND |
| 2016-09-12 | 16I0710-01 | ND |
| 2016-12-14 | 16L0979-01 | ND |
| 2017-03-20 | 17C1211-01 | ND |
| 2017-06-12 | 17F0751-01 | ND |
| 2017-09-11 | 17I0579-01 | ND |
| 2017-10-24 | 17J1523-01 | ND |
| 2018-03-19 | 18C1291-01 | ND |
| 2018-05-14 | 18E1023-01 | ND |
| 2018-08-27 | 18H1876-01 | ND |
| 2018-11-14 | 521937001 | ND |
| 2019-01-16 | 525666002 | ND |
| 2019-05-15 | 5213979001 | ND |
| 2019-07-24 | 5219220001 | ND |