trans-1,2-Dichloroethylene
Municipality of Anchorage
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 |
---|---|---|---|---|
2014 | ND | 2 | 0 | ND |
2015 | ND | 13 | 0 | ND |
2016 | ND | 10 | 0 | ND |
2017 | ND | 11 | 0 | ND |
2018 | ND | 11 | 0 | ND |
2019 | ND | 12 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 60 ppb
The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.
EPA Maximum Contaminant
Level (MCL) 100 ppb
The legal limit for trans-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 |
---|---|---|
2014-05-13 | VO*A1405164-01C | ND |
2014-09-09 | VO*A1409133-01C | ND |
2015-01-12 | VO*A1501154-01C | ND |
2015-08-18 | VO*1154626001 | ND |
2015-08-18 | VO*1154627001 | ND |
2015-08-18 | VO*1154627002 | ND |
2015-08-18 | VO*1154627003 | ND |
2015-08-18 | VO*1154627004 | ND |
2015-08-19 | VO*1154667001 | ND |
2015-08-20 | VO*1154709001 | ND |
2015-08-20 | VO*1154709004 | ND |
2015-08-20 | VO*1154709003 | ND |
2015-08-20 | VO*1154709002 | ND |
2015-09-23 | VO*1155578001 | ND |
2015-10-30 | VO*1156488001 | ND |
2016-07-13 | VO*280-85692-1 | ND |
2016-07-13 | VO*280-85692-4 | ND |
2016-07-13 | VO*280-85692-2 | ND |
2016-07-18 | VO*280-85921-1 | ND |
2016-07-18 | VO*280-85921-2 | ND |
2016-07-19 | VO*280-85945-1 | ND |
2016-08-02 | VO*280-86589-1 | ND |
2016-08-02 | VO*280-86590-1 | ND |
2016-08-29 | VO*280-87677-1 | ND |
2016-08-29 | VO*280-87677-3 | ND |
2017-08-21 | VO*3765073 | ND |
2017-08-21 | VO*3765106 | ND |
2017-08-21 | VO*3766066 | ND |
2017-08-21 | VO*3766073 | ND |
2017-08-28 | VO*3768874 | ND |
2017-08-28 | VO*3768906 | ND |
2017-08-28 | VO*3768882 | ND |
2017-08-28 | VO*3768898 | ND |
2017-08-29 | VO*3769507 | ND |
2017-10-02 | VO*3792416 | ND |
2017-10-31 | VO*440-195632-1 | ND |
2018-07-10 | VO*3995473 | ND |
2018-08-07 | VO*4022997 | ND |
2018-08-07 | VO*4022991 | ND |
2018-08-07 | VO*4022985 | ND |
2018-08-14 | VO*4031803 | ND |
2018-08-14 | VO*4031784 | ND |
2018-08-14 | VO*4031772 | ND |
2018-08-14 | VO*4031778 | ND |
2018-08-22 | VO*4041719 | ND |
2018-08-22 | VO*4041725 | ND |
2018-08-23 | VO*4041713 | ND |
2019-07-10 | 440-245796-1 | ND |
2019-07-10 | 440-245795-1 | ND |
2019-08-12 | 4386482 | ND |
2019-08-12 | 4386522 | ND |
2019-08-12 | 4386515 | ND |
2019-08-13 | 4388214 | ND |
2019-08-13 | 4388227 | ND |
2019-08-14 | 4389214 | ND |
2019-08-14 | 4389205 | ND |
2019-08-21 | X4397383 | ND |
2019-08-21 | 4397389 | ND |
2019-10-02 | 4444903 | ND |