1,1,1,2-Tetrachloroethane
Bethlehem Water District No. 1
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
16
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 | 2 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2014-04-16 | JH1402536-POC | ND |
| 2014-04-16 | JH1402534-POC | ND |
| 2015-05-19 | JH1502990-POC | ND |
| 2015-05-19 | JH1502988-POC | ND |
| 2015-05-19 | JH1502992-POC | ND |
| 2016-04-19 | JH1602762-OC | ND |
| 2016-10-24 | JH1609521.POC.VL | ND |
| 2016-10-24 | JH1609519.POC.CL | ND |
| 2017-10-18 | JH1708530.POC | ND |
| 2017-10-18 | JH1708518.POC | ND |
| 2017-10-18 | JH1708533.POC | ND |
| 2018-10-31 | JH180653.POC | ND |
| 2018-10-31 | JH1808647.POC | ND |
| 2018-10-31 | JH1908653.POC | ND |
| 2019-10-29 | JH1907765.POC | ND |
| 2019-10-29 | JH1907761.POC | ND |