cis-1,2-Dichloroethylene
Georgetown Municipal Water Service
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.
24
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 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 |
|---|---|---|
| 2014-03-06 | 4031205-01 | ND |
| 2014-05-02 | 4041297-01 | ND |
| 2014-07-31 | 4072502-01 | ND |
| 2014-10-17 | 4101029-01 | ND |
| 2015-01-15 | 5012452-01 | ND |
| 2015-04-16 | 5042904-01 | ND |
| 2015-08-13 | 5072853-01 | ND |
| 2015-11-17 | 5112680-01 | ND |
| 2016-02-11 | 6013606-01 | ND |
| 2016-05-05 | 6042779-01 | ND |
| 2016-08-04 | 6073959-01 | ND |
| 2016-10-20 | 6102942-01 | ND |
| 2017-01-04 | 7010853-01 | ND |
| 2017-05-25 | 7053743-01 | ND |
| 2017-07-27 | 7070027-01 | ND |
| 2017-10-18 | 7103269-01 | ND |
| 2018-01-25 | 8012576-01 | ND |
| 2018-04-19 | 8042683-01 | ND |
| 2018-07-18 | 8072894-01 | ND |
| 2018-10-18 | 8102174-01 | ND |
| 2019-01-17 | 9012273-01 | ND |
| 2019-04-18 | 9042901-01 | ND |
| 2019-07-18 | 9073094-01 | ND |
| 2019-10-17 | 9102989-01 | ND |