trans-1,2-Dichloroethylene
Robeson County Water System
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 10 | 0 | ND |
2015 | ND | 10 | 0 | ND |
2016 | ND | 9 | 0 | ND |
2017 | ND | 16 | 0 | ND |
2018 | ND | 11 | 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 |
---|---|---|
2014-01-27 | 8410-012714-002V | ND |
2014-01-27 | 8410-012714-001V | ND |
2014-01-27 | 8410-012714-E15V | ND |
2014-01-27 | 8410-012714-011V | ND |
2014-01-27 | 8410-012714-009V | ND |
2014-01-27 | 8410-012714-006V | ND |
2014-01-27 | 8410-012714-005V | ND |
2014-01-27 | 8410-012714-004V | ND |
2014-01-27 | 8410-012714-008V | ND |
2014-05-12 | 8410-051214-013V | ND |
2015-01-12 | ND | |
2015-01-12 | ND | |
2015-01-12 | ND | |
2015-01-12 | ND | |
2015-01-12 | ND | |
2015-03-16 | ND | |
2015-04-13 | ND | |
2015-06-08 | ND | |
2015-08-03 | ND | |
2015-12-01 | ND | |
2016-01-11 | 8410-011116-011V | ND |
2016-01-11 | 8410-011116-012V | ND |
2016-01-11 | 8410-011116-014V | ND |
2016-01-11 | 8410-011116-E15V | ND |
2016-02-02 | 8410-020216-001V | ND |
2016-04-11 | 8410-041116-013V | ND |
2016-05-10 | 8410-051016-001V | ND |
2016-07-12 | 8410-071216-001V | ND |
2016-10-04 | 8410-100416-001V | ND |
2017-01-09 | 8410-010917-009V | ND |
2017-01-09 | 8410-010917-011V | ND |
2017-01-09 | 8410-010917-E15V | ND |
2017-01-09 | 8410-010917-005V | ND |
2017-01-09 | 8410-010917-008V | ND |
2017-01-09 | 8410-010917-006V | ND |
2017-01-10 | 8410-011017-004V | ND |
2017-01-10 | 8410-011017-001V | ND |
2017-01-10 | 8410-011017-002V | ND |
2017-03-28 | 8410-032817-001V | ND |
2017-06-12 | 8410-061217-001V | ND |
2017-06-12 | 8410-061217-011V | ND |
2017-07-10 | 8410-071017-011V | ND |
2017-07-10 | 8410-071017-001V | ND |
2017-10-03 | 8410-100317-001V | ND |
2017-10-03 | 8410-100317-011V | ND |
2018-01-23 | 8410-012318-014V | ND |
2018-01-23 | 8410-012318-012V | ND |
2018-01-23 | 8410-012318-011V | ND |
2018-01-23 | 8410-012318-003V | ND |
2018-01-23 | 8410-012318-001V | ND |
2018-04-02 | 8410-040218-011V | ND |
2018-06-19 | 8410-061918-001V | ND |
2018-07-09 | 8410-070918-011V | ND |
2018-09-04 | 8410-090418-001V | ND |
2018-10-09 | 8410-100918-001V | ND |
2018-10-09 | 8410-100918-011V | ND |
2019-01-07 | 8410-010719-011V | ND |
2019-01-07 | 8410-010719-012V | ND |
2019-01-07 | 8410-010719-014V | ND |
2019-03-12 | 8410-031219-001V | ND |
2019-04-15 | 8410-041519-013V | ND |
2019-04-15 | 8410-041519-011V | ND |
2019-07-22 | 8410-072219-011V | ND |
2019-10-07 | 8410-100719-011V | ND |