cis-1,2-Dichloroethylene
Eielson - Air Force Base
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.
30
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 |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | 0.188 ppb | 6 | 1 | ND - 1.13 ppb |
| 2021 | 0.167 ppb | 6 | 1 | ND - 1.000 ppb |
| 2022 | 0.148 ppb | 6 | 1 | ND - 0.890 ppb |
| 2023 | 0.123 ppb | 6 | 1 | ND - 0.740 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-02-05 | VO*1189052001 | ND |
| 2019-01-22 | 1199022001 | ND |
| 2019-01-22 | 1199022002 | ND |
| 2019-01-22 | 1199022004 | ND |
| 2019-01-22 | 1199022005 | ND |
| 2019-01-22 | 1199022003 | ND |
| 2020-02-04 | 1209040005 | ND |
| 2020-02-04 | 1209040002 | ND |
| 2020-02-04 | 1209040001 | ND |
| 2020-02-04 | 1209040003 | 1.13 ppb |
| 2020-02-04 | 1209040006 | ND |
| 2020-02-04 | 1209040004 | ND |
| 2021-02-01 | 4827993 | ND |
| 2021-02-01 | 4827984 | ND |
| 2021-02-01 | 4827988 | 1.000 ppb |
| 2021-02-01 | 4827989 | ND |
| 2021-02-01 | 4827987 | ND |
| 2021-02-01 | 4827990 | ND |
| 2022-02-09 | 1220584012 | ND |
| 2022-02-09 | 1220584010 | ND |
| 2022-02-09 | 1220584005 | 0.890 ppb |
| 2022-02-09 | 1220584006 | ND |
| 2022-02-09 | 1220584008 | ND |
| 2022-02-09 | 1220584004 | ND |
| 2023-07-17 | 810-70364-B-5 | ND |
| 2023-07-17 | 810-70364-A-2 | ND |
| 2023-07-17 | 810-70364-B-6 | 0.740 ppb |
| 2023-07-17 | 810-70364-B-4 | ND |
| 2023-07-17 | 810-70364-A-1 | ND |
| 2023-07-17 | 810-70364-A-3 | ND |