trans-1,2-Dichloroethylene
City of Celina
NOTE: City of Celina purchases water from Utrwd Regional Water Treatment Plant which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by Utrwd Regional Water Treatment Plant.
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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
NOTE: City of Celina purchases water from Utrwd Regional Water Treatment Plant which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by Utrwd Regional Water Treatment Plant.
| Date | Lab ID | Result |
|---|---|---|
| 2014-07-22 | Q1429878002 | ND |
| 2014-07-22 | Q1429878004 | ND |
| 2015-09-16 | Q1536495003 | ND |
| 2015-09-21 | Q1536819003 | ND |
| 2016-09-01 | Q1635093002 | ND |
| 2016-09-02 | Q1635676002 | ND |
| 2017-09-07 | Q1742147002 | ND |
| 2017-09-26 | Q1746575006 | ND |
| 2018-09-13 | Q1836570001 | ND |
| 2018-09-25 | Q1838256005 | ND |
| 2019-09-26 | Q1969362002 | ND |
| 2019-09-27 | Q1970279005 | ND |