1,1,1,2-Tetrachloroethane
Gibson Hill Park
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
27
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 10 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2015-05-15 | E505E72-2VOC | ND |
| 2015-05-15 | E505E72-3VOC | ND |
| 2015-07-28 | BJ65003VOC1 | ND |
| 2015-07-28 | BJ65002VOC1 | ND |
| 2015-12-17 | BK40657VOC1 | ND |
| 2015-12-17 | BK40656VOC1 | ND |
| 2016-01-28 | BK59083VOC1 | ND |
| 2016-01-28 | BK59084VOC1 | ND |
| 2016-06-23 | BN62337VOC1 | ND |
| 2016-06-23 | BN62336VOC1 | ND |
| 2016-09-28 | BV31614VOC1 | ND |
| 2016-09-28 | BV31613VOC1 | ND |
| 2016-10-31 | BV71657VOC1 | ND |
| 2016-10-31 | BV71658VOC1 | ND |
| 2016-12-28 | BX13466VOC1 | ND |
| 2016-12-28 | BX13465VOC1 | ND |
| 2017-01-26 | BX39627VOC1 | ND |
| 2017-01-26 | BX39626VOC1 | ND |
| 2017-06-15 | BY41546VOC1 | ND |
| 2017-06-15 | BY41545VOC1 | ND |
| 2017-07-25 | BY72564VOC1 | ND |
| 2017-07-25 | BY72563VOC1 | ND |
| 2017-11-16 | BZ43705VOC1 | ND |
| 2017-11-16 | BZ43704VOC1 | ND |
| 2018-02-13 | BZ89012VOC1 | ND |
| 2018-02-13 | BZ89013VOC1 | ND |
| 2019-11-05 | CE54972 | ND |