1,1,1,2-Tetrachloroethane
Candlewood Park Water District
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
16
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2020-01-27 | AW01792-POCS | ND |
| 2020-08-27 | AW16649-POCS | ND |
| 2020-08-27 | AW16651-POCS | ND |
| 2020-09-22 | 420-181340-1-POCS | ND |
| 2020-09-22 | 420-181340-2-POCS | ND |
| 2021-04-21 | AX07611-POCS | ND |
| 2021-04-21 | AX07609-POCS | ND |
| 2021-10-06 | AX20377-POCS | ND |
| 2022-06-16 | AY10393-POCS | ND |
| 2022-06-16 | AY10389-POCS | ND |
| 2022-12-08 | AY21972-POCS | ND |
| 2023-05-02 | CN95930-POCS | ND |
| 2023-05-02 | CN95932-POCS | ND |
| 2023-06-07 | AZ10246-POCS | ND |
| 2023-06-07 | AZ10248-POCS | ND |
| 2023-12-18 | AZ22799-POC | ND |