cis-1,2-Dichloroethylene
City of Boerne
1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 3 | 0 | ND |
2015 | ND | 7 | 0 | ND |
2016 | ND | 7 | 0 | ND |
2017 | ND | 7 | 0 | ND |
2018 | ND | 7 | 0 | ND |
2019 | ND | 7 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-02-11 | AC42222 | ND |
2014-04-03 | AC49258 | ND |
2014-07-14 | AC59510 | ND |
2015-01-29 | AC78533 | ND |
2015-04-13 | AC88003 | ND |
2015-04-13 | AC88007 | ND |
2015-07-23 | AD00763 | ND |
2015-07-23 | AD00749 | ND |
2015-07-23 | AD00779 | ND |
2015-07-23 | AD00753 | ND |
2016-02-17 | AD23965 | ND |
2016-04-20 | AD33644 | ND |
2016-04-20 | AD33646 | ND |
2016-07-22 | AD45474 | ND |
2016-11-02 | AD56150 | ND |
2016-11-02 | AD56140 | ND |
2016-11-02 | AD56138 | ND |
2017-01-25 | AD66830 | ND |
2017-01-25 | AD66826 | ND |
2017-04-04 | AD78313 | ND |
2017-04-04 | AD78327 | ND |
2017-04-04 | AD78315 | ND |
2017-07-17 | AD89534 | ND |
2017-07-17 | AD89532 | ND |
2018-01-29 | AE10984 | ND |
2018-01-29 | AE11034 | ND |
2018-05-01 | AE24587 | ND |
2018-05-01 | AE24581 | ND |
2018-05-01 | AE24583 | ND |
2018-05-01 | AE24585 | ND |
2018-08-14 | AE36941 | ND |
2019-09-17 | AE83853 | ND |
2019-10-02 | AE85514 | ND |
2019-10-02 | AE85524 | ND |
2019-10-02 | AE85516 | ND |
2019-10-02 | AE85526 | ND |
2019-10-02 | AE85522 | ND |
2019-10-02 | AE85520 | ND |