1,1,1,2-Tetrachloroethane
Grand Harbor Water System
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
10
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 | N/A | 0 | 0 | N/A |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 0 | ND |
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 |
---|---|---|
2015-09-09 | AD06217 | ND |
2015-09-09 | AD06205 | ND |
2016-12-15 | AD62396 | ND |
2016-12-15 | AD62398 | ND |
2017-10-26 | AE02445 | ND |
2017-10-26 | AE02435 | ND |
2018-06-19 | AE30463 | ND |
2018-06-19 | AE30487 | ND |
2019-06-13 | AE70603 | ND |
2019-06-13 | AE70599 | ND |