1,1,1,2-Tetrachloroethane
Frognot Water Supply Corporation
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
15
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 |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-04-19 | Q1816227008 | ND |
| 2018-06-20 | Q1824690001 | ND |
| 2019-03-18 | Q1911123002 | ND |
| 2019-08-12 | Q1954104001 | ND |
| 2020-03-10 | Q2009278009 | ND |
| 2020-03-10 | Q2009278011 | ND |
| 2020-03-10 | Q2009278013 | ND |
| 2020-05-12 | Q2018415002 | ND |
| 2021-07-13 | Q2118248008 | ND |
| 2021-07-13 | Q2118248010 | ND |
| 2022-05-11 | Q2214187002 | ND |
| 2022-05-11 | Q2214187005 | ND |
| 2023-03-14 | Q2310003002 | ND |
| 2023-03-14 | Q2310003004 | ND |
| 2023-03-14 | Q2310003006 | ND |