trans-1,2-Dichloroethylene
Great Oaks Water Company Inc.
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 7 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 15 | 0 | ND |
2017 | ND | 7 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 15 | 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 |
---|---|---|
2014-03-27 | 9590-013-1030 | ND |
2014-05-15 | 9590-013-1115 | ND |
2014-08-25 | 9590-007-0855 | ND |
2014-08-25 | 9590-022-1505 | ND |
2014-08-25 | 9590-021-1545 | ND |
2014-08-25 | 9590-010-1035 | ND |
2014-08-27 | 9590-013-1230 | ND |
2015-09-22 | 9590-007-0850 | ND |
2015-09-22 | 9590-013-1000 | ND |
2016-05-25 | 9590-025-1415 | ND |
2016-08-22 | 9590-004-1230 | ND |
2016-08-22 | 9590-011-1325 | ND |
2016-08-22 | 9590-009-1410 | ND |
2016-08-24 | 9590-018-1315 | ND |
2016-08-24 | 9590-013-1230 | ND |
2016-08-24 | 9590-015-1450 | ND |
2016-08-24 | 9590-023-1405 | ND |
2016-08-25 | 9590-001-1205 | ND |
2016-08-25 | 9590-019-1350 | ND |
2016-08-25 | 9590-008-1255 | ND |
2016-08-25 | 9590-002-1435 | ND |
2016-09-06 | 9590-007-1400 | ND |
2016-09-28 | 9590-025-1400 | ND |
2016-11-02 | 9590-025-1115 | ND |
2017-03-08 | 9590-025-0930 | ND |
2017-04-13 | 9590-006-1000 | ND |
2017-06-01 | 9590-010-1030 | ND |
2017-08-30 | 9590-007-1030 | ND |
2017-08-30 | 9590-021-1510 | ND |
2017-08-31 | 9590-025-1440 | ND |
2017-08-31 | 9590-022-1515 | ND |
2018-08-29 | 9590-010-0930 | ND |
2018-08-30 | 9590-007-0930 | ND |
2019-08-28 | 9590-001-1420 | ND |
2019-08-28 | 9590-007-1120 | ND |
2019-08-28 | 9590-006-0920 | ND |
2019-08-28 | 9590-002-1030 | ND |
2019-08-29 | 9590-018-1000 | ND |
2019-08-29 | 9590-015-0850 | ND |
2019-08-29 | 9590-009-0745 | ND |
2019-08-29 | 9590-008-1410 | ND |
2019-08-29 | 9590-004-1310 | ND |
2019-09-05 | 9590-023-1400 | ND |
2019-09-05 | 9590-019-1145 | ND |
2019-09-05 | 9590-025-1250 | ND |
2019-09-12 | 9590-013-1430 | ND |
2019-09-12 | 9590-011-1300 | ND |
2019-09-12 | 9590-010-1145 | ND |