| Duck Creek At Dc Golf Course At Davenport, IA |
| East Fork 102 River At Bedford, IA |
| East Fork Des Moines River At Dakota City, IA |
| East Fork Des Moines River Near Algona, IA |
| East Nishnabotna River At Red Oak, IA |
| East Nishnabotna River At Riverton, IA |
| East Nishnabotna River Near Atlantic, IA |
| East Tarkio Creek Near Stanton, IA |
| English Creek Near Knoxville, IA |
| English River At Kalona, IA |
| Floyd River At Alton, IA |
| Floyd River At James, IA |
| Fourmile Creek At Des Moines, IA |
| Fourmile Creek Near Ankeny, IA |
| Fox River At Bloomfield, IA |
| Hoover Creek At Hoover Nat Hist Site, West Branch, IA |
| Indian Creek At Marion, IA |
| Indian Creek Near Mingo, IA |
| Iowa River At County Highway E49 Near Tama, IA |
| Iowa River At Iowa City, IA |
| Iowa River At Marengo, IA |
| Iowa River At Marshalltown, IA |
| Iowa River At Oakville, IA |
| Iowa River At Wapello, IA |
| Iowa River Below Coralville Dam Near Coralville, IA |
| Iowa River Near Lone Tree, IA |
| Iowa River Near Rowan, IA |
| Keg Creek At Epperson Avenue Near Glenwood, IA |
| Little Cedar River Near Ionia, IA |
| Little Sioux River At 300Th St Near Spencer, IA |
| Little Sioux River At Correctionville, IA |
| Little Sioux River At Linn Grove, IA |
| Little Sioux River Near Turin, IA |
| Lizard Creek Near Fort Dodge, IA |
| Lyons Creek Near Webster City, IA |
| Maple River At Mapleton, IA |
| Maquoketa River At Manchester, IA |
| Maquoketa River Near Maquoketa, IA |
| Middle Fork Little Maquoketa River Near Rickardsville, IA |
| Middle Raccoon River At Panora, IA |
| Middle Raccoon River Near Bayard, IA |
| Middle River Near Indianola, IA |
| Mississippi River At Clayton, IA |
| Mississippi River At Clinton, IA |
| Mississippi River At Mcgregor, IA |
| Missouri River At Sioux City, IA |
| Monona-Harrison Ditch Near Turin, IA |
| Muddy Creek At Coralville, IA |
| Mud Lake Drainage Ditch 71 At Jewell, IA |
| Nishnabotna River Above Hamburg, IA |
