1,1,1,2-Tetrachloroethane
Blackjack Water Supply Corporation
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
14
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 | 2 | 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 |
|---|---|---|
| 2018-03-22 | Q1811649001 | ND |
| 2018-03-22 | Q1811649011 | ND |
| 2019-05-21 | Q1927030006 | ND |
| 2019-05-21 | Q1927030008 | ND |
| 2020-03-09 | Q2008429001 | ND |
| 2020-03-09 | Q2008429003 | ND |
| 2020-05-07 | Q2018092003 | ND |
| 2020-07-30 | Q2029903003 | ND |
| 2021-09-29 | Q2126705005 | ND |
| 2021-09-29 | Q2126705007 | ND |
| 2022-06-13 | Q2216378006 | ND |
| 2022-06-13 | Q2216378008 | ND |
| 2023-04-03 | Q2312018003 | ND |
| 2023-04-03 | Q2312018005 | ND |