cis-1,2-Dichloroethylene
Idyllwild Water District
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.
23
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 |
|---|---|---|---|---|
| 2014 | ND | 8 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 12 | 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 |
|---|---|---|
| 2014-07-17 | 4790-019-0815 | ND |
| 2014-07-17 | 4790-018-0810 | ND |
| 2014-08-27 | 4790-020-1000 | ND |
| 2014-08-27 | 4790-004-1055 | ND |
| 2014-09-03 | 4790-017-0900 | ND |
| 2014-09-24 | 4790-029-1110 | ND |
| 2014-09-24 | 4790-028-1100 | ND |
| 2014-09-24 | 4790-002-1130 | ND |
| 2015-04-16 | 4790-021-0730 | ND |
| 2017-07-24 | 4790-032-1100 | ND |
| 2018-05-23 | 4790-046-0900 | ND |
| 2019-04-25 | 4790-024-1008 | ND |
| 2019-04-25 | 4790-001-1020 | ND |
| 2019-04-25 | 4790-010-0920 | ND |
| 2019-04-25 | 4790-005-0900 | ND |
| 2019-05-03 | 4790-021-0915 | ND |
| 2019-05-03 | 4790-016-0950 | ND |
| 2019-05-03 | 4790-011-0940 | ND |
| 2019-05-03 | 4790-005-1040 | ND |
| 2019-05-23 | 4790-011-1035 | ND |
| 2019-06-27 | 4790-002-1100 | ND |
| 2019-07-18 | 4790-041-0910 | ND |
| 2019-08-07 | 4790-032-0900 | ND |