| Specimen ID | 293221 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | CA |
| County | San Benito |
| Locality | pump in Hollister at Ridgemark Golf Course |
| HUC8 Name | Pajaro |
| HUC8 Number | 18060002 |
| Map | |
| Collection Day | 25 |
| Collection Month | 10 |
| Collection Year | 2012 |
| Year Accuracy | Actual |
| Pathway | shipping ballast water | dispersed |
| Status | established |
| Comments | Five mussels found alive in the Diablo pump (uppermost pump in the system). The source of these mussels came from untreated water from San Justo Reservoir, already infested with zebra mussels. |
| Record Type | Personal communication |
| Verifier | California Dept. of Fish and Game |
| Fresh Marine Intro | Freshwater |
| Number Collected | 5 live |