| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
28130
| CA | Orange | City of Huntington Beach, C-4 flood channel at Springdale | 1973 |
18070201
| Seal Beach | failed |
|
28122
| CA | Orange | City of Huntington Beach, Huntington Seacliff Golf Course | 1973 |
18070201
| Seal Beach | failed |
|
29268
| CA | Orange | Huntington Beach | 1977 |
18070201
| Seal Beach | failed |
|
28102
| CA | Orange | Huntington Beach Electric generating plant | 1974 |
18070201
| Seal Beach | established |
|
28132
| CA | Orange | Huntington Beach, C-5 flood channel at Springdale | 1973 |
18070201
| Seal Beach | failed |
|
28134
| CA | Orange | Huntington Beach, D-1 flood channel at Indianapolis | 1973 |
18070201
| Seal Beach | failed |
|
28123
| CA | Orange | Mile Square Regional Park, City of Fountain Valley | 1973 |
18070201
| Seal Beach | failed |