1,1,1,2-Tetrachloroethane
Monticello
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
12
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 | N/A | 0 | 0 | N/A |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-11-03 | 14K0033-01 | ND |
| 2014-11-03 | 14K0033-02 | ND |
| 2014-11-03 | 14K0033-03 | ND |
| 2014-11-03 | 14K0033-04 | ND |
| 2016-09-08 | 3542107 | ND |
| 2016-09-08 | 3542121 | ND |
| 2016-09-08 | 3542129 | ND |
| 2016-09-08 | 3542138 | ND |
| 2017-03-30 | 17C1248-02 | ND |
| 2017-03-30 | 17C1248-04 | ND |
| 2017-08-16 | 17H1267-01 | ND |
| 2017-08-16 | 17H1267-02 | ND |