| Specimen ID | 261700 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | PA |
| County | Armstrong |
| Locality | Allegheny River, just N of Kittanning at Tarrtown |
| Mapping Accuracy | Accurate |
| HUC8 Name | Middle Allegheny-Redbank |
| HUC8 Number | 05010006 |
| HUC10 Name | Allegheny River |
| HUC10 Number | 0501000611 |
| HUC12 Name | Garretts Run-Allegheny River |
| HUC12 Number | 050100061107 |
| Map | |
| Collection Day | 15 |
| Collection Month | 6 |
| Collection Year | 2009 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Comments | Fouled water intake pipes in the river. |
| Record Type | NAS sighting report |
| Freshwater/Marine | Freshwater |
