1,1,2,2-Tetrachloroethane
City of Dorchester
1,1,2,2-Tetrachloroethane is an industrial chemical which has been used as a metal degreaser, and in paint, paint removers, mothballs and pesticides. It damages the liver and nervous system, and may cause cancer.
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 |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 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: 0.1 ppb
The EWG Health Guideline of 0.1 ppb for 1,1,2,2-tetrachloroethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-07-05 | Q1826628001 | ND |
| 2018-07-05 | Q1826628010 | ND |
| 2019-08-13 | Q1954235002 | ND |
| 2019-08-13 | Q1954235004 | ND |
| 2020-10-15 | Q2040499003 | ND |
| 2020-11-23 | Q2046450001 | ND |
| 2021-09-20 | Q2125598003 | ND |
| 2021-12-13 | Q2134947004 | ND |
| 2022-06-29 | Q2218370001 | ND |
| 2022-10-19 | Q2231829003 | ND |
| 2023-08-23 | Q2335730001 | ND |
| 2023-11-13 | Q2348430001 | ND |