1,1,1,2-Tetrachloroethane
Chateau Woods Municipal Utility District
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
11
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 | ND | 1 | 0 | ND |
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 |
---|---|---|
2014-04-22 | AC51392 | ND |
2015-04-14 | AC88420 | ND |
2015-04-14 | AC88416 | ND |
2016-10-17 | AD53411 | ND |
2016-10-17 | AD53431 | ND |
2017-04-06 | AD78752 | ND |
2017-04-06 | AD78758 | ND |
2018-03-13 | AE18175 | ND |
2018-03-13 | AE18155 | ND |
2019-08-20 | AE79597 | ND |
2019-08-20 | AE79595 | ND |