Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
282631
| CA | | state non-specific | 1877 |
18000000
| California Region | failed |
282633
| CA | Contra Costa | Delta Protective Facility near Byron, trib. of San Joaquin River | 1984 |
18040003
| San Joaquin Delta | failed |
282634
| CA | San Francisco | Golden Gate Park lakes, San Francisco | 1978 |
18050006
| San Francisco Coastal South | failed |
29491
| CA | San Joaquin | vicintiy of Honker Cut and Disappointment Slough near Kind Island Resort, 15 mi nw of Stockton, San Joaquin River | 1964 |
18040003
| San Joaquin Delta | failed |
38682
| NV | Clark | Lake Mead | 1973 |
15010012
| Muddy | failed |
38683
| NV | Clark | Lake Mead | 1982 |
15010012
| Muddy | failed |
40652
| OR | Multnomah | Lake River, trib. of the Willamette River, Portland | 1991 |
17090012
| Lower Willamette | failed |
40651
| OR | Multnomah | Willamette River at Portland | 1981 |
17090012
| Lower Willamette | failed |
40667
| OR | Multnomah | Willamette River at Portland | 1983 |
17090012
| Lower Willamette | failed |