| Specimen ID | 293221 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | CA |
| County | San Benito |
| Locality | Hollister, in a pump at Ridgemark Golf Course |
| Mapping Accuracy | Accurate |
| HUC8 Name | Pajaro |
| HUC8 Number | 18060002 |
| HUC10 Name | Lower San Benito River |
| HUC10 Number | 1806000207 |
| HUC12 Name | Bird Creek-San Benito River |
| HUC12 Number | 180600020705 |
| Map | |
| Collection Day | 25 |
| Collection Month | 10 |
| Collection Year | 2012 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft | 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 |
| Freshwater/Marine | Freshwater |
| Number Collected | 5 live |
