Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
28950
| CA | | L.A. Basin | 1976 |
18070105
| Los Angeles | established |
1335126
| CA | Los Angeles | Arroyo Seco, 100 yds above and below Colorado blvd (210 Fwy) Pasadena | 1972 |
18070105
| Los Angeles | established |
259209
| CA | Los Angeles | Los Angeles River | 2007 |
18070105
| Los Angeles | established |
1335127
| CA | Los Angeles | Pasadena, Arroyo Seco and small impounded trib. entering from E, 0.25 miles north Pasadena Freeway | 1972 |
18070105
| Los Angeles | established |
1335125
| CA | Los Angeles | Pasadena, Arroyo Seco at crossing of Colorado blvd. bridge | 1972 |
18070105
| Los Angeles | established |
1335124
| CA | Los Angeles | Rio Hondo wash between San Gabriel Blvd Bridge and Whittier Narrows Dam | 1972 |
18070105
| Los Angeles | established |