1,1,1,2-Tetrachloroethane
Rison Waterworks
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
14
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 | 3 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 6 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-02-05 | 14037002909 | ND |
2014-05-05 | 14128006609 | ND |
2014-11-19 | 14324008001 | ND |
2015-12-01 | 15337001701 | ND |
2016-01-25 | 16028003201 | ND |
2016-04-25 | 16119004101 | ND |
2016-05-02 | 16126015701 | ND |
2016-09-12 | 16259004101 | ND |
2016-10-17 | 16294003301 | ND |
2016-10-17 | 16294003401 | ND |
2017-10-04 | 17278011402 | ND |
2018-10-23 | 18298000501 | ND |
2019-10-22 | 19297000301 | ND |
2019-10-22 | 19297000201 | ND |