| Specimen ID | 1257108 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | SD |
| County | Union |
| Locality | McCook Lake, NW of Sioux City |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lewis and Clark Lake |
| HUC8 Number | 10170101 |
| HUC10 Name | Lime Creek-Missouri River |
| HUC10 Number | 1017010115 |
| HUC12 Name | Walnut Creek-Missouri River |
| HUC12 Number | 101701011504 |
| Map | |
| Collection Day | 2 |
| Collection Month | 6 |
| Collection Year | 2016 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Comments | Found in multiple areas throughout the lake. |
| Record Type | Personal communication |
| Verifier | South Dakota Game, Fish and Parks |
| Freshwater/Marine | Freshwater |
| Year Class | adult |
