trans-1,2-Dichloroethylene
City of Riverton
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 14 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 15 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-07-14 | C14070510-002L | ND |
| 2014-07-14 | C14070510-001L | ND |
| 2014-07-14 | C14070510-014L | ND |
| 2014-07-14 | C14070510-013L | ND |
| 2014-07-14 | C14070510-012L | ND |
| 2014-07-14 | C14070510-011L | ND |
| 2014-07-14 | C14070510-010L | ND |
| 2014-07-14 | C14070510-009L | ND |
| 2014-07-14 | C14070510-008L | ND |
| 2014-07-14 | C14070510-007L | ND |
| 2014-07-14 | C14070510-006L | ND |
| 2014-07-14 | C14070510-005L | ND |
| 2014-07-14 | C14070510-004L | ND |
| 2014-07-14 | C14070510-003L | ND |
| 2015-04-14 | C15040475-001K | ND |
| 2015-06-25 | C15061008-013L | ND |
| 2015-08-11 | C15080418-001J | ND |
| 2015-10-26 | C15100814-001H | ND |
| 2016-03-07 | C16030282-001H | ND |
| 2016-06-13 | C16060466-016H | ND |
| 2016-06-13 | C16060466-007E | ND |
| 2016-09-07 | C16090266-001A | ND |
| 2016-12-12 | C16120340-001H | ND |
| 2017-06-06 | C17060229-002E | ND |
| 2017-06-06 | C17060229-014E | ND |
| 2017-06-06 | C17060229-013E | ND |
| 2017-06-06 | C17060229-012E | ND |
| 2017-06-06 | C17060229-011E | ND |
| 2017-06-06 | C17060229-010E | ND |
| 2017-06-06 | C17060229-009E | ND |
| 2017-06-06 | C17060229-008E | ND |
| 2017-06-06 | C17060229-007E | ND |
| 2017-06-06 | C17060229-006E | ND |
| 2017-06-06 | C17060229-005E | ND |
| 2017-06-06 | C17060229-004E | ND |
| 2017-06-06 | C17060229-003E | ND |
| 2017-06-06 | C17060229-001E | ND |
| 2017-07-17 | C17070545-001E | ND |
| 2018-06-04 | C18060169-052D | ND |
| 2018-10-15 | C18100603-001A | ND |