1,1,1,2-Tetrachloroethane
Lompoc Water Utility Division
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 | 1 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 8 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 7 | 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 |
|---|---|---|
| 2014-03-12 | 5867-011-1113 | ND |
| 2016-01-06 | 5867-003-1212 | ND |
| 2016-01-06 | 5867-007-1108 | ND |
| 2016-01-06 | 5867-011-1307 | ND |
| 2016-01-06 | 5867-016-1244 | ND |
| 2016-01-13 | 5867-008-1125 | ND |
| 2016-01-13 | 5867-009-1215 | ND |
| 2016-01-13 | 5867-013-1151 | ND |
| 2016-02-03 | 5867-006-1206 | ND |
| 2019-01-02 | 5867-006-1032 | ND |
| 2019-01-02 | 5867-008-1058 | ND |
| 2019-01-02 | 5867-016-0950 | ND |
| 2019-01-16 | 5867-011-0940 | ND |
| 2019-01-16 | 5867-013-0910 | ND |
| 2019-01-23 | 5867-007-0920 | ND |
| 2019-01-23 | 5867-009-1016 | ND |