cis-1,2-Dichloroethylene
City of Hereford
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.
25
Samples
0
Samples exceeding legal limit (MCL)
0
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 | 3 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for cis-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 |
|---|---|---|
| 2014-02-12 | Q1404321004 | ND |
| 2014-02-12 | Q1404321014 | ND |
| 2014-02-12 | Q1404321012 | ND |
| 2015-01-29 | Q1503619008 | ND |
| 2015-01-29 | Q1503619001 | ND |
| 2015-01-29 | Q1503619003 | ND |
| 2015-01-29 | Q1503619006 | ND |
| 2016-02-10 | Q1605969003 | ND |
| 2016-02-10 | Q1605969002 | ND |
| 2016-03-17 | Q1611196004 | ND |
| 2016-03-17 | Q1611196002 | ND |
| 2016-09-15 | Q1637842006 | ND |
| 2016-10-18 | Q1644175005 | ND |
| 2017-01-17 | Q1702053006 | ND |
| 2017-04-10 | Q1714723001 | ND |
| 2017-05-09 | Q1718998002 | ND |
| 2017-07-13 | Q1728901008 | ND |
| 2018-01-16 | Q1801777003 | ND |
| 2018-04-12 | Q1815215002 | ND |
| 2018-08-01 | Q1830563001 | ND |
| 2018-10-11 | Q1840697008 | ND |
| 2019-01-17 | Q1902747006 | ND |
| 2019-04-23 | Q1916150006 | ND |
| 2019-05-30 | Q1930309001 | ND |
| 2019-07-08 | Q1942256001 | ND |