1,1,1,2-Tetrachloroethane
Howard County Cons Public Water Supply District 1
NOTE: Howard County Cons Public Water Supply District 1 purchases water from Howard County Regional Water Comm. which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Howard County Regional Water Comm..
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 1 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 1 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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
NOTE: Howard County Cons Public Water Supply District 1 purchases water from Howard County Regional Water Comm. which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by Howard County Regional Water Comm..
Date | Lab ID | Result |
---|---|---|
2017-04-06 | AC93415 | ND |