trans-1,2-Dichloroethylene
Maywood Mutual Water Company #3
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 | 6 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 6 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 5 | 0 | ND |
2019 | ND | 5 | 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 |
---|---|---|
2014-01-24 | 9588-009-1340 | ND |
2014-01-24 | 9588-004-1412 | ND |
2014-04-22 | 9588-004-0913 | ND |
2014-07-17 | 9588-004-1010 | ND |
2014-11-25 | 9588-009-1445 | ND |
2014-12-10 | 9588-004-0924 | ND |
2015-01-27 | 9588-004-0943 | ND |
2015-01-27 | 9588-009-0930 | ND |
2015-04-07 | 9588-004-1212 | ND |
2015-07-28 | 9588-004-0942 | ND |
2015-10-27 | 9588-004-0947 | ND |
2016-03-23 | 9588-004-1014 | ND |
2016-03-23 | 9588-009-1027 | ND |
2016-05-04 | 9588-004-1010 | ND |
2016-05-04 | 9588-009-0952 | ND |
2016-08-16 | 9588-004-0951 | ND |
2016-10-11 | 9588-004-1010 | ND |
2017-01-13 | 9588-004-0940 | ND |
2017-01-13 | 9588-009-0955 | ND |
2017-04-05 | 9588-004-0930 | ND |
2017-07-11 | 9588-004-0946 | ND |
2017-10-12 | 9588-004-0935 | ND |
2018-01-25 | 9588-009-0945 | ND |
2018-01-25 | 9588-004-0930 | ND |
2018-04-10 | 9588-004-0950 | ND |
2018-07-27 | 9588-004-0900 | ND |
2018-10-30 | 9588-004-0939 | ND |
2019-01-29 | 9588-004-1030 | ND |
2019-01-29 | 9588-009-0940 | ND |
2019-05-03 | 9588-004-0910 | ND |
2019-07-16 | 9588-004-0945 | ND |
2019-10-29 | 9588-004-1020 | ND |