trans-1,2-Dichloroethylene
Glendora Water Department
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 | 7 | 0 | ND |
2015 | ND | 8 | 0 | ND |
2016 | ND | 8 | 0 | ND |
2017 | ND | 8 | 0 | ND |
2018 | ND | 8 | 0 | ND |
2019 | ND | 8 | 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 |
---|---|---|
2014-03-04 | 9588-020-1005 | ND |
2014-03-04 | 9588-008-1020 | ND |
2014-03-04 | 9588-006-0915 | ND |
2014-09-09 | 9588-015-1010 | ND |
2014-09-09 | 9588-009-0925 | ND |
2014-09-09 | 9588-007-1030 | ND |
2014-09-17 | 9588-010-0950 | ND |
2015-03-25 | 9588-002-0910 | ND |
2015-03-25 | 9588-008-0930 | ND |
2015-03-25 | 9588-020-0900 | ND |
2015-03-25 | 9588-006-0955 | ND |
2015-09-09 | 9588-007-0940 | ND |
2015-09-09 | 9588-015-1025 | ND |
2015-09-09 | 9588-010-1010 | ND |
2015-09-09 | 9588-009-0925 | ND |
2016-03-03 | 9588-020-0920 | ND |
2016-03-03 | 9588-002-0930 | ND |
2016-03-03 | 9588-006-1000 | ND |
2016-03-03 | 9588-008-0940 | ND |
2016-09-08 | 9588-009-1015 | ND |
2016-09-08 | 9588-007-0930 | ND |
2016-09-08 | 9588-010-0940 | ND |
2016-09-08 | 9588-015-0955 | ND |
2017-03-02 | 9588-002-0800 | ND |
2017-03-02 | 9588-006-0835 | ND |
2017-03-02 | 9588-020-0755 | ND |
2017-03-02 | 9588-008-0810 | ND |
2017-09-07 | 9588-015-0940 | ND |
2017-09-07 | 9588-007-0920 | ND |
2017-09-07 | 9588-010-0930 | ND |
2017-09-07 | 9588-009-0850 | ND |
2018-03-07 | 9588-020-0835 | ND |
2018-03-07 | 9588-008-0850 | ND |
2018-03-07 | 9588-002-0840 | ND |
2018-03-07 | 9588-006-0910 | ND |
2018-09-14 | 9588-009-0925 | ND |
2018-09-14 | 9588-015-1050 | ND |
2018-09-14 | 9588-010-1025 | ND |
2018-09-14 | 9588-007-1005 | ND |
2019-03-13 | 9588-020-0810 | ND |
2019-03-13 | 9588-006-0845 | ND |
2019-03-13 | 9588-008-0825 | ND |
2019-03-13 | 9588-002-0815 | ND |
2019-09-19 | 9588-007-0820 | ND |
2019-09-19 | 9588-009-0910 | ND |
2019-09-24 | 9588-010-1350 | ND |
2019-09-24 | 9588-015-1335 | ND |