| Specimen ID | 1932828 |
| Group | Mollusks-Bivalves |
| Genus | Limnoperna |
| Species | fortunei |
| Common Name | Golden Mussel |
| State | CA |
| County | Contra Costa |
| Locality | Contra Costa Water District treatment plant forebay (Mallard Reservoir) |
| Mapping Accuracy | Accurate |
| HUC8 Name | Suisun Bay |
| HUC8 Number | 18050001 |
| HUC10 Name | Mount Diablo Creek-Frontal Suisun Bay Estuaries |
| HUC10 Number | 1805000103 |
| HUC12 Name | Mount Diablo Creek-Frontal Suisun Bay Estuaries |
| HUC12 Number | 180500010302 |
| Map | |
| Collection Day | 26 |
| Collection Month | 4 |
| Collection Year | 2026 |
| Year Accuracy | Actual |
| Comments | First detection of settled mussels in this water body. Species confirmed via DNA. |
| Record Type | NAS sighting report |
| Verifier | California Department of Fish and Wildlife |
| Photo | |
