1,1,1,2-Tetrachloroethane
Doylestown Borough Water Department
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
30
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 | 5 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-01-22 | L4867559-1 | ND |
| 2014-01-22 | L4867559-2 | ND |
| 2014-02-25 | L4899027-2 | ND |
| 2014-02-25 | L4899027-3 | ND |
| 2014-02-25 | L4899027-1 | ND |
| 2015-01-13 | 12274562 | ND |
| 2015-01-13 | 12274616 | ND |
| 2015-02-03 | 12389845 | ND |
| 2015-02-03 | 12389899 | ND |
| 2015-02-03 | 12389953 | ND |
| 2016-02-05 | 13858702 | ND |
| 2016-02-05 | 13858756 | ND |
| 2016-02-05 | 13858594 | ND |
| 2016-02-05 | 13858648 | ND |
| 2016-02-05 | 13858540 | ND |
| 2017-01-06 | 15503091 | ND |
| 2017-01-06 | 15502933 | ND |
| 2017-01-06 | 15502985 | ND |
| 2017-01-06 | 15503143 | ND |
| 2017-01-06 | 15503039 | ND |
| 2018-01-12 | L6983060-3 | ND |
| 2018-01-12 | L6983058-2 | ND |
| 2018-01-12 | L6983060-2 | ND |
| 2018-01-12 | L6983058-1 | ND |
| 2018-01-12 | L6983060-1 | ND |
| 2019-01-31 | L7090358-2 | ND |
| 2019-01-31 | L7090359-1 | ND |
| 2019-01-31 | L7090359-2 | ND |
| 2019-01-31 | L7090358-3 | ND |
| 2019-01-31 | L7090358-1 | ND |