1,1,1,2-Tetrachloroethane
Bellingham Dpw Water Sewer Div.
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
51
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 12 | 0 | ND |
| 2015 | ND | 12 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 11 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 11 | 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 | Result |
|---|---|
| 2014-05-19 | ND |
| 2014-05-19 | ND |
| 2014-05-19 | ND |
| 2014-05-19 | ND |
| 2014-05-19 | ND |
| 2014-05-19 | ND |
| 2014-05-21 | ND |
| 2014-05-21 | ND |
| 2014-06-16 | ND |
| 2014-06-16 | ND |
| 2014-06-16 | ND |
| 2014-06-16 | ND |
| 2015-06-15 | ND |
| 2015-06-15 | ND |
| 2015-06-15 | ND |
| 2015-06-15 | ND |
| 2015-06-15 | ND |
| 2015-06-15 | ND |
| 2015-06-15 | ND |
| 2015-06-15 | ND |
| 2015-06-15 | ND |
| 2015-06-29 | ND |
| 2015-06-29 | ND |
| 2015-06-29 | ND |
| 2017-05-15 | ND |
| 2017-05-15 | ND |
| 2017-05-15 | ND |
| 2017-05-15 | ND |
| 2017-05-15 | ND |
| 2017-05-15 | ND |
| 2017-05-15 | ND |
| 2017-05-15 | ND |
| 2017-05-15 | ND |
| 2017-05-15 | ND |
| 2017-09-18 | ND |
| 2018-05-31 | ND |
| 2018-05-31 | ND |
| 2018-09-17 | ND |
| 2018-12-17 | ND |
| 2018-12-17 | ND |
| 2019-03-11 | ND |
| 2019-04-26 | ND |
| 2019-04-26 | ND |
| 2019-04-26 | ND |
| 2019-04-26 | ND |
| 2019-04-26 | ND |
| 2019-04-26 | ND |
| 2019-04-26 | ND |
| 2019-04-26 | ND |
| 2019-04-26 | ND |
| 2019-04-26 | ND |