| WBID | Waterbody | Location | County(s) | IR Category | Impairment(s) |
| IA 02-SHL-00105-L_0 | Avenue Of The Saints Lake | Bremer Co. approximately 2 miles E of Shell Rock in S7 T91N R14W | Bremer | 5a | algae; pH; turbidity |
| IA 01-MAQ-0090-L_0 | Backbone Lake | Backbone Lake Dam to S Fk Maquoketa R. (S16 T90N R6W Delaware Co.) | Delaware | 5a | bacteria |
| IA 01-UIA-0170_1 | Bear Creek | mouth (S1, T99N, R6W, Allamakee Co.) to confluence with N. Bear Cr. in S25, T100N, R7W, Winneshiek Co. | Allamakee, Winneshiek | 5p | bacteria |
| IA 01-UIA-0170_2 | Bear Creek | confluence with N. Bear Cr. (S25, T100N, R7W) to spring source (Mestad Spring) in S29, T100N, R7W, Winneshiek Co. | Winneshiek | 5b | biological-fish kill |
| IA 01-NMQ-0140_0 | Bear Creek | mouth (S31, T89N, R2W, Dubuque Co.) to confluence with unnamed tributary in NW 1/4, S2, T89N, R3W, Delaware Co. | Delaware, Dubuque | 5b | biological-fish kill |
| IA 01-NMQ-0141_0 | Bear Creek | confluence with unnamed tributary (T89N R3W Sec2 NW) to headwaters (T90N R4W Sec26), Delaware Co. | Delaware | 5b | biological-fish kill |
| IA 01-UIA-0420_1 | Beaver Creek | mouth (S19, T100N, R12W, Howard Co.) to south line of S29, T100N, R13W, Howard Co. | Howard | 5p | bacteria |
| IA 02-CED-0370_1 | Black Hawk Creek | mouth (S22, T89N, R13W, Black Hawk Co.) to Hwy 58 in E 1/2, S27, T88N, R14W, Black Hawk Co.) | Black Hawk | 4a | bacteria |
| IA 02-CED-0370_2 | Black Hawk Creek | from Hwy 58 (E 1/2, S27, T88N, R14W, Black Hawk Co.) to confluence with N. Fk. Black Hawk Cr. in S1, T87N, R15W, Grundy | Black Hawk, Grundy | 5b & 5p | bacteria; biological-fish/inverts |
| IA 01-YEL-0060_0 | Bloody Run | mouth (Clayton Co.) to west line of S22 T95N R4W Clayton Co. | Clayton | 5p | bacteria |
| IA 01-VOL-0120_2 | Brush Creek | from confluence with Bear Cr. (S8, T92N, R7W, Fayette Co.) to east line of S17, T92N, R7W, Fayette Co. | Fayette | 5b-t | biological-fish/inverts |
| IA 01-MAQ-0210_0 | Buck Creek | mouth (S11, T87N, R4W, Delaware Co.) to Golden Branch in S11, T87N, R5W, Delaware Co. | Delaware | 5b-t | biological-mussels |
| IA 01-YEL-0020_2 | Buck Creek | from west line of S9T93NR3W (Clayton Co.) to confluence with unnamed tributary in S32 T94N R3W Clayton Co. | Clayton | 5b | biological-fish kill |
| IA 01-YEL-0021_0 | Buck Creek | from confluence with unnamed tributary (T94N R03W Sec32) to headwaters (T94N R04W Sec26) | Clayton | 5b | biological-fish kill |
| IA 01-WPS-0130_1 | Buffalo Creek | upper end of Coggon Impoundment (Linn Co.) to confluence with unnamed tributary in N 1/2, S27, T88N, R7W, Buchanan Co. | Buchanan, Delaware, Linn | 5b | biological-mussels |
| IA 01-WPS-0130_2 | Buffalo Creek | from confluence with unnamed tributary in N 1/2, S27,T88N,R7W (Buchanan Co.) to confluence of the East Branch and West B | Buchanan | 5b | biological-mussels |
| IA 01-WPS-0110_1 | Buffalo Creek | mouth (S10, T84N, R4W, Jones Co.) to the Jones/Linn county line in NW 1/4, S19, T85N, R4W, Jones Co. | Jones | 5b | biological-mussels |
| IA 01-WPS-0110_2 | Buffalo Creek | from the Jones/Linn county line (NW 1/4, S19, T85N, R4W, Jones Co.) to confluence with Boulder Cr. in NE 1/4, S30, T86N, | Linn | 5b | biological-mussels |
| IA 01-WPS-0110_3 | Buffalo Creek | from confluence with Boulder Cr. (NE 1/4, S30, T86N, R5W, Linn Co.) to dam of Coggon Impoundment in SW 1/4, S3, T86N, R6 | Linn | 5b | biological-mussels |
| IA 01-UIA-0240_1 | Canoe Creek | mouth (S25, T99N, R7W, Winneshiek Co.) to county road W38 (S23, T99N, R8W, Winneshiek Co.). | Winneshiek | 5p | bacteria |
| IA 02-CED-00210-L_0 | Cedar Bend Lake | Linn Co. S35 T83N R7W; at Cedar Rapids. | Linn | 5a | PCBs (in fish) |
| IA 02-CED-02250-L_0 | Cedar Lake | Linn County S21T83NR7W in Cedar Rapids. | Linn | 5a & 4a | chlordane (in fish); PCBs (in fish) |
| IA 02-CED-0040_1 | Cedar River | from Wolf Cr. (NE 1/4, S29, T87N, R11W, Black Hawk Co.) to bridge crossing in LaPorte City in S19, T87N, R11W, Black Haw | Black Hawk | 4a | bacteria |
| IA 02-CED-0040_2 | Cedar River | from bridge crossing in LaPorte City in S19, T87N, R11W, Black Hawk Co.) to dam of Cedar Falls Impoundment in NW 1/4, S1 | Black Hawk | 5a | bacteria |
| IA 02-CED-0020_2 | Cedar River | from Rock Run Cr. (S28, T80N,R3W, Cedar Co ) to Hwy 30 bridge at Cedar Rapids in S9, T82N, R6W, Linn Co. | Cedar, Johnson, Linn | 5b | biological-mussels |
| IA 02-CED-0020_3 | Cedar River | from Hwy 30 bridge at Cedar Rapids (S9, T82N, R6W, Linn Co) to confluence with Prairie Cr. in the SE 1/4, S34, T83N, R7W | Linn | 4a | bacteria |
| IA 02-CED-0030_1 | Cedar River | from Prairie Cr. (SE 1/4, S34, T83N, R7W, Linn Co.) to confluence with McCloud Run in SW 1/4, S16, T83N, R7W, Linn Co. | Linn | 4a | bacteria |
| IA 02-CED-0030_2 | Cedar River | from confluence with McCloud Run (SW 1/4, S16, T83N, R7W, Linn Co.) to confluence with Bear Cr. in NE 1/4, S21, T84N, R8 | Linn | 4a | bacteria, nitrate |
| IA 01-MAQ-01580-L_0 | Central Park Lake | Jones County S1T84NR3W 6 mi E of Anamosa. | Jones | 5a | algae; bacteria; pH |
| IA 01-UIA-0150_0 | Clear Creek | mouth (S35, T100N, R5W, Allamakee Co.) to north line of S15, T100N, R5W, Allamakee Co. | Allamakee | 5p | bacteria |
| IA 01-UIA-0270_0 | Coon Creek | mouth (NE 1/4, S3, T99N, R7W, Winneshiek Co.) to road crossing in S13, T98N, R7W, Winneshiek Co. | Winneshiek | 5p | bacteria |
| IA 01-WPS-0180_1 | Crane Creek | mouth (S26, T90N, R11W, Black Hawk Co. to confluence with unnamed tributary in NW 1/4, S24, T90N, R12W, Black Hawk Co. | Black Hawk | 4d | fish kill-restitution sought/received |
| IA 01-TRK-0440_4 | Crane Creek | from confluence with unnamed tributary (NW 1/4, S33, T99N, R13W, Howard Co.) to confluence with unnamed tributary in S7, | Howard | 5b-t | biological-fish/inverts |
| IA 01-YEL-0090_0 | Dousman Creek | mouth (S33, T96N, R3W, Allamakee Co.) to Allamakee-Clayton county line. | Allamakee | 5a & 5p | bacteria; low DO |
| IA 01-TRK-0419_0 | Dry Branch | confluence with unnamed tributary in the N 1/2, S4, T95N, R8W, Fayette Co. to headwaters | Fayette, Winneshiek | 4d | fish kill-restitution sought/received |
| IA 02-CED-0217_0 | Dry Creek | mouth (S1, T83N, R7W, Linn Co.) to confluence with unnamed tributary in S15, T84N, R7W, Linn Co. | Linn | 5p | bacteria |
| IA 01-UIA-0320_0 | Dry Run | mouth (S17, T98N, R8W, Winneshiek Co.) to west line of S36, T98N, R9W, Winneshiek Co. | Winneshiek | 5a | bacteria |
| IA 02-CED-0390_0 | Dry Run | mouth (S18, T89N, R13W, Black Hawk Co.) to confluence with unnamed tributary in S23, T89N, R14W, BlackHawk Co | Black Hawk | 5a & 5b | bacteria; biologica-fish/inverts |
| IA 02-CED-0392_0 | Dry Run (North Branch) | mouth (T89N R14W Sec13) to headwaters (T89N R14W Sec9) | Black Hawk | 5p | bacteria |
| IA 02-CED-0391_0 | Dry Run (South Branch) | mouth (T89N R14W Sec13) to headwaters (T88N R14W Sec9) | Black Hawk | 5p | bacteria |
| IA 02-CED-0234_0 | East Branch Blue Creek | confluence with Blue Creek (T85N R8W Sec7) to headwaters (T87N 8W Section 33) | Buchanan, Linn | 5b | biological-fish kill |
| IA 01-UIA-0380_0 | East Pine Creek | mouth (S28, T100N, R9W, Winneshiek Co.) to IA/MN state line | Winneshiek | 5b-t | biological-fish/inverts |
| IA 01-UIA-0140_0 | French Creek | mouth (S1, T99N, R5W, Allamakee Co.) to east line of S23, T99N, R5W, Allamakee Co. | Allamakee | 5p | bacteria |
| IA 01-VOL-00130-L_0 | Frog Hollow (aka Volga Lake) | Fayette County S3T93NR8W 4 mi. NNE of Fayette. | Fayette | 5a | algae; pH |
| IA 02-CED-00485-L_0 | George Wyth Lake | Black Hawk County S6T89NR13W at N edge of Waterloo. | Black Hawk | 4a | bacteria |
| IA 02-IOW-01810-L_0 | Hannon Lake | Benton County S34T82NR11W 4 mi SW of Blairstown. | Benton | 5a | algae; pH |
| IA 01-YEL-0120_1 | Hickory Creek | mouth (NE 1/4, S23, T96N, R5W, Allamakee Co.) to south line of S28, T96N, R5W, Allamakee Co. | Allamakee | 5a & 5p | bacteria; low DO |
| IA 01-NMQ-0160_0 | Hickory Creek | mouth (S21, T89N, R2W, Dubuque Co.) to confluence with unnamed tributary in S14, T89N, R2W, Dubuque Co. | Dubuque | 5b-t | biological-fish/inverts |
| IA 01-MAQ-0250_0 | Honey Creek | mouth (S19 T89N R5W Delaware Co.) to Rutherford Branch in S26 T90N R5W Delaware Co. | Delaware | 5p | bacteria |
| IA 02-CED-0210_1 | Indian Creek | mouth (S30, T83N, R6W, Linn Co.) to confluence with Dry Cr. in S1, T83N, R7W, Linn Co. | Linn | 5b & 5p | bacteria; biological-fish/inverts |
| IA 02-CED-0210_2 | Indian Creek | from confluence with Dry Cr. (S1, T83N, R7W, Linn Co.) to confluence with unnamed tributary in NE 1/4, S20, T84N, R6W, | Linn | 5p | bacteria |
| IA 01-UIA-0130_0 | Irish Hollow Creek | mouth (S21, T100N, R4W, Allamakee Co.). to north line of S17, T100N, R4W, Allamakee Co. | Allamakee | 5b-t | biological-fish/inverts |
| IA 01-NMQ-0110_0 | Johns Creek | mouth (S26, T87N, R1W, Dubuque Co.) to confluence with Bakers Cr. in S36, T88N, R2W, Dubuque Co. | Dubuque | 5b | biological-mussels |
| IA 01-NMQ-0111_0 | Johns Creek | Confluence with Bakers Creek (T88N R2W Sec36 SE) to headwaters (T88N R2W Sec11) Dubuque Co | Dubuque | 5b | biological-fish kill |
| IA 01-WPS-00375-L_0 | Lake Hendricks | Howard County S19T99NR14W 0.5 mi NE of Riceville. | Howard | 5a | algae; pH |
| IA 01-TRK-02245-L_0 | Lake Meyers | Winneshiek County S34T97NR9W 3 mi SW of Calmar. | Winneshiek | 4a | nutrients; siltation |
| IA 02-CED-0270_1 | Lime Creek | mouth (SW 1/4, S4, T86N, R10W, Benton Co.) to confluence with unnamed tributary in S1, T87N, R10W, Buchanan Co. | Benton, Buchanan | 5b | biological-mussels |
| IA 02-CED-0470_1 | Little Cedar River | mouth (S20, T94N, R14W, Chickasaw Co.) to the Chickasaw/Floyd county line at W line, S6, T95N, R14W, Chickasaw Co. | Chickasaw | 5a | bacteria |
| IA 01-TRK-0230_3 | Little Turkey River | from the Clayton/Delaware county line to south line of S11, T90N, R3W in Delaware Co. | Delaware | 5b-t | biological-fish/inverts |
| IA 01-VOL-0150_1 | Little Volga River | mouth (north line of S2, T92N, R9W, Fayette Co.) to Hwy 150 bridge crossing at Maynard at south line of S14, T92N, R9W, | Fayette | 5a | mercury (in fish) |
| IA 01-MAQ-0060_2 | Maquoketa River | from Farm Cr. (Jones Co) to confluence with Plum Cr. in S11, T87N, R4W, Delaware Co. | Delaware, Jones | 5a & 5b | bacteria; biological-mussels |
| IA 01-MAQ-0060_3 | Maquoketa River | from Plum Cr. (S11, T87N, R4W, Delaware Co.) to Quaker Mill Dam in S19, T89N, R5W, Delaware Co. | Delaware | 5a & 5b | bacteria; biological-fish/inverts |
| IA 01-MAQ-0060_1 | Maquoketa River | from N. Fk. Maquoketa R. to confluence with Farm Cr. in S10, T85N, R1W, Jones Co. | Jackson, Jones | 5b & 4a | biological-mussels; bacteria |
| IA 02-CED-0218_0 | McLoud Run | mouth (SW 1/4, S16, T83N, R7W, Linn Co.) to headwaters in SW 1/4, S5, T83N, R7W, Linn Co. | Linn | 5a & 4a | thermal impact-fish kill; biological-fish kill |
| IA 02-CED-00460-L_0 | Meyer Lake | Black Hawk County S6T88NR12W at Waterloo. | Black Hawk | 5a | algae |
| IA 01-TRK-0180_2 | Middle Fork Little Maquoketa River (a.k.a. Bankston Cr.) | from west line of S31, T90N, R1E (Dubuque Co.) to north line of S33, T90N, R1W, Dubuque Co. | Dubuque | 5b-t | biological-fish/inverts |
| IA 01-YEL-0010_2 | Miners Creek | from Hwy 52 bridge (SE 1/4, S20, T92N, R2W, Clayton Co.) to west line of S1, T92N, R3W, Clayton Co. | Clayton | 5b-t | biological-fish/inverts |
| IA 01-NEM-0020_1 | Mississippi River | from Lock & Dam 13 at Clinton (Clinton Co.) to confluence with Catfish Cr. at south edge of Dubuque (Dubuque Co.). | Clinton, Dubuque, Jackson | 5a | mercury (in fish) |
| IA 01-NEM-0020_2 | Mississippi River | from Catfish Cr. at south edge of Dubuque (Dubuque Co.) to Lock & Dam 11 at north edge of Dubuque (Dubuque Co.). | Dubuque | 5a | mercury (in fish) |
| IA 01-NEM-0030_1 | Mississippi River | from Lock & Dam 11 at north side of Dubuque (Dubuque Co.) to Lock & Dam 10 at Guttenberg (Clayton Co.) | Dubuque, Clayton | 5a | aluminum |
| IA 01-UIA-0410_0 | Nichols Creek (aka Bigalk Cr.) | mouth (S18, T100N, R10W, Winneshiek Co.) to west line of S23, T100N, R11W, Howard Co. | Howard, Winneshiek | 5p | bacteria |
| IA 01-YEL-0130_0 | Norfolk Creek | mouth (S6, T96N, R5W, Allamakee Co.) to confluence with Teeple Cr. in S24, T97N, R6W, Allamakee Co. | Allamakee | 5a & 5p | bacteria; low DO |
| IA 01-NMQ-0020_2 | North Fork Maquoketa River | confluence with Bear Cr (S31, T89N,R2W, Dubuque Co.) to confluence with unnamed tributary in S18, T90N, R1W, Dubuque Co. | Dubuque | 4a | ammonia, nutrients, sedimentation |
| IA 01-NMQ-0020_1 | North Fork Maquoketa River | confluence with Whitewater Cr.(S10, T86N, R1W, Jones Co) to Bear Cr. (S31, T89N, R2W, Dubuque Co.) | Delaware, Dubuque, Jones | 5b | biological-fish/inverts & mussels |
| IA 01-NMQ-0010_1 | North Fork Maquoketa River | mouth (Jackson Co.) to confluence with Lytle Cr. S8, T85N, R2E, Jackson Co. | Jackson | 5a | bacteria |
| IA 01-YEL-0160_0 | North Fork Yellow River | mouth (S13, T96N, R7W, Winneshiek Co.) to confluence with unnamed tributary in S3, T96N, R7W, Winneshiek Co. | Winneshiek | 5a & 5p | bacteria; low DO |
| IA 01-TRK-0416_0 | Nutting Creek | mouth (S19, T95N, R7W, Fayette Co.) to confluence with unnamed tributary in S2, T95N, R8W, Fayette Co. | Fayette | 5p | bacteria |
| IA 01-UIA-0010_1 | Paint Creek | mouth (Allamakee Co.) to confluence with Little Paint Cr. in S32, T97N, R3W, Allamakee Co. | Allamakee | 5b-t | biological-fish/inverts |
| IA 01-UIA-0230_0 | Patterson Creek | mouth (S29, T99N, R6W, Allamakee Co.) to east line of S3, T98N, R6W, Allamakee Co. | Allamakee | 5p | bacteria |
| IA 01-TRK-0260_0 | Pecks Creek | mouth (S1, T91N, R3W, Clayton Co.) to south line of S15, T91N, R3W, Clayton Co. | Clayton | 5b-t | biological-fish/inverts |
| IA 01-UIA-0370_0 | Pine Creek | mouth (S10, T99N, R9W, Winneshiek Co.) to IA/MN state line. | Winneshiek | 5p | bacteria |
| IA 01-TRK-0010_1 | Pleasant Creek | mouth (S33, T86N, R5E, Jackson Co.) to W line of S11, T85N, R4E, Jackson Co. | Jackson | 5b-t | biological-fish/inverts |
| IA 01-MAQ-0220_1 | Plum Creek | mouth (Delaware Co.) to confluence with unnamed tributary in E 1/2, S24, T89N, R4W, Delaware Co. | Delaware | 5b | biological-fish/inverts & mussels |
| IA 01-TRK-0240_0 | Point Hollow Creek (aka White Pine Cr.) | mouth (S31, T91N, R2W, Clayton Co.) to spring source in S8, T90N, R2W, Dubuque Co. | Clayton, Dubuque | 5b-v | biological-fish/inverts |
| IA 02-CED-0220_2 | Prairie Creek | from confluence with Mud Cr. (S21, T82N, R9W, Benton Co.) to confluence with unnamed tributary in S13, T83N, R12W, Bento | Benton | 4d | fish kill-restitution sought/received |
| IA 01-TRK-0361_0 | Roberts Creek | Confluence with unnamed tributary in S8, T95N, R6W, Clayton Co. to headwaters (T96N R6W Sec32 SW SE Allamakee Co) | Allamakee, Clayton | 4d | fish kill-restitution sought/received |
| IA 01-TRK-0360_2 | Roberts Creek | confluence with Howard Cr. (S25, T94N, R5W, Clayton Co.) to confluence with Silver Cr. in S16, T94N, R5W, Clayton Co. | Clayton | 4c | habitat alterations |
| IA 01-TRK-0360_3 | Roberts Creek | from confluence with Silver Cr. (S16, T94N, R5W, Clayton Co.) to confluence with unnamed tributary in S8, T95N, R6W, Cla | Clayton | 4d | fish kill-restitution sought/received |
| IA 01-UIA-0403_0 | Silver Creek | mouth (S2, T99N, R10W, Winneshiek Co.) to west line of S12, T99N, R11W, Howard Co. | Howard, Winneshiek | 5p | bacteria |
| IA 01-TRK-0381_0 | Silver Creek | mouth (S16, T94N, R5W, Clayton Co.) to confluence with unnamed tributary in S32, T95N, R5W, Clayton Co. | Clayton | 5a & 5b | bacteria; biological-fish/inverts |
| IA 01-TRK-0382_0 | Silver Creek | confluence with unnamed tributary in S32, T95N, R5W to headwaters(T95N R6W Sec11) | Clayton | 5p | bacteria |
| IA 01-MAQ-0200_0 | Silver Creek | mouth (S8, T86N, R3W, Jones Co.) to unnamed tributary in S10, T86N, R4W, Jones Co. | Jones | 5b | biological-mussels |
| IA 01-UIA-0160_0 | Silver Creek | mouth (S4 T99N R5W Allamakee Co.) to south line of S31 T99N R5W Allamakee Co. | Allamakee | 5p | bacteria |
| IA 01-MAQ-00680-L_0 | Silver Lake | Delaware County S16T88NR4W SE edge of Delhi. | Delaware | 4a | algae; turbidity; pH; ammonia; nutrients; siltation |
| IA 01-TRK-0340_0 | South Branch Fountain Spring Creek | mouth (SW 1/4 S10 T90N R4W Delaware Co.) to west line of SW 1/4 S16 T90N R4W Delaware Co. | Delaware | 4d | fish kill-restitution sought/received |
| IA 02-CED-03905-L_0 | South Prairie Lake | Black Hawk Co.; west of Waterloo in S35 T89N R14W | 5a | pH | |
| IA 01-YEL-0100_0 | Suttle Creek | mouth (S17, T96N, R4W, Allamakee Co.) to Allmakee-Clayton county line. | Allamakee | 5a & 5p | bacteria; low DO |
| IA 01-UIA-0340_0 | Ten Mile Creek | mouth (S1, T98N, R9W, Winneshiek Co.) to confluence with Walnut Cr. in S18, T98N, R9W, Winneshiek Co. | Winneshiek | 5b-t | biological-fish/inverts |
| IA 01-TRK-0090_1 | Tetes Des Morts Creek | mouth (Dubuque Co.) to confluence with Lux Cr. in S7, T87N, R4E, Jackson Co. | Dubuque, Jackson | 5b | biological-fish/inverts & fish kill |
| IA 01-UIA-0280_1 | Trout Creek | mouth (S9, T98N, R7W, Winneshiek Co.) to Smith Cr. (aka Trout River) in S21, T98N, R7W, Winneshiek Co. | Winneshiek | 5p | bacteria |
| IA 01-UIA-0300_1 | Trout Creek (aka Trout Run) | mouth (S23, T98N, R8W, Winneshiek Co.) to confluence with unnamed tributary (aka Trout Run) in S27, T98N, R8W, Winneshie | Winneshiek | 5a | bacteria |
| IA 01-TRK-0200_0 | Turkey River | mouth (Clayton Co.) to confluence with Volga R. in S26, T92N, R4W, Clayton Co. | Clayton | 5a | bacteria |
| IA 01-YEL-0150_0 | Unnamed Creek | mouth (NW 1/4, S2, T96N, R6W, Allamakee Co.) to confluence with unnamed tributary in S33, T97N, R6W, Allamakee Co. | Allamakee | 5b & 5p | bacteria; biological-fish/inverts |
| IA 01-YEL-0110_0 | Unnamed Creek (aka Bear Cr.) | mouth (S13, T96N, R5W, Allamakee Co.) to north line of S12, T96N, R5W, Allamkee Co. | Allamakee | 5a & 5p | bacteria; low DO |
| IA 01-UIA-0390_0 | Unnamed Creek (aka Cold Water Cr.) | mouth (S32, T100N, R9W, Winneshiek Co.) to north line of S31, T100N, R9W, Winneshiek Co. | Winneshiek | 5p | bacteria |
| IA 01-YEL-0155_0 | Unnamed Creek (aka Hecker Cr.) | mouth (S17,T96N,R06W, Allamakee Co.) to headwaters (Allamakee Co.) | Allamakee | 5b & 5p | bacteria; biological-fish kill |
| IA 01-WPS-0153_0 | Unnamed Creek (near Hazleton) | mouth (NE 1/4 SW 1/4 S28 T90N R9W Buchanan Co.) to headwaters in S26 T90N R9W Buchanan Co. | Buchanan | 5b | biological-fish kill |
| IA 01-TRK-04515_0 | Unnamed Tributary to Bass Creek | mouth (T95N R9W Sec5) to headwaters (T95N R9W Sec8), Fayette Co. | Fayette | 5b | biological-fish kill |
| IA 01-NMQ-01415_0 | Unnamed Tributary to Bear Creek | mouth (T90N R3W Sec30) to headwaters (T90N R4W Sec36), Delaware Co. | Delaware | 4d | fish kill-restitution sought/received |
| IA 01-NMQ-0142_0 | Unnamed Tributary to Bear Creek | mouth (T90N R3W Sec33) to headwaters (T90N R3W Sec32) Delaware Co | Delaware | 4d | fish kill-restitution sought/received |
| IA 01-WPS-0270_0 | Unnamed Tributary to Buffalo Creek | mouth (T89N R8W Sec24) to headwaters (T89N R7W Sec19) Buchanan Co | Buchanan | 5b | biological-fish kill |
| IA 01-WPS-0185_0 | Unnamed Tributary to Crane Creek | mouth (T90N R11W Sec19 SW NW Black Hawk Co) to headwaters (T91N R12W Sec12 NW SW Bremer Co) | Black Hawk, Bremer | 4d | fish kill-restitution sought/received |
| IA 01-WPS-0183_0 | Unnamed Tributary to Crane Creek | from mouth (T90N R11W Sec28) to headwaters (T90N R11W Sec32) | Black Hawk | 5b | biological-fish kill |
| IA 01-TRK-02415_0 | Unnamed Tributary to Point Hollow Creek | mouth to headwaters (T90N R2W Sec9), Dubuque Co. | Dubuque | 4d | fish kill-restitution sought/received |
| IA 01-UIA-0346_0 | Unnamed Tributary to Unnamed Tributary to Ten Mile Creek | from mouth (T98N R09W Sec5) to headwaters (T99N R10W Sec35) | Winneshiek | 4d | fish kill-restitution sought/received |
| IA 01-TRK-03817_0 | Unnamed Tributary to UT to Silver Creek | mouth (T95N R5W Sec20) to headwaters (T95N R5W Sec14) in Monona city limits | Clayton | 5a & 5p | ammonia; bacteria |
| IA 01-TRK-02775_0 | Unnamed Tributary to West Branch Cedar Creek | mouth (T93N R04W Sec 36 NW) to headwaters (T93N R04W Sec27 SE) Clayton Co | Clayton | 4d | fish kill-restitution sought/received |
| IA 01-UIA-0090_0 | Upper Iowa River | mouth (Allamakee Co.) to Lane's Bridge at river mile 6 (NW 1/4, S31, T100N, R4W, Allamakee Co.). | Allamakee | 5a | bacteria; mercury (in fish) |
| IA 01-UIA-0100_0 | Upper Iowa River | from Lane's Bridge (NW 1/4, S31, T100N, R4W, Allamakee Co.) to confluence with Canoe Cr. in S25, T99N, R7W, Winneshiek C | Allamakee, Winneshiek | 5a | bacteria; mercury (in fish) |
| IA 01-UIA-0110_1 | Upper Iowa River | confluence with Canoe Cr. (S25, T99N, R7W, Winneshiek Co.) to confluence with Trout Cr. in S9, T98N, R7W, Winneshiek Co. | Allamakee, Winneshiek | 5a | mercury (in fish) |
| IA 01-UIA-0110_3 | Upper Iowa River | from confluence with Tenmile Cr. (S1, T98N, R9W, Winneshiek Co.) to confluence with Silver Cr. in S10, T99N, R9W, Winnes | Winneshiek | 5b | biological-mussels |
| IA 01-UIA-0120_1 | Upper Iowa River | confluence with Silver Cr. (S10, T99N, R9W, Winneshiek Co.) to confluence with Silver Cr. in S2, T99N, R10W, Winneshiek | Winneshiek | 5b | biological-mussels |
| IA 01-UIA-0110_2 | Upper Iowa River | from confluence with Trout Cr. (S9, T98N, R7W, Winneshiek Co.) to confluence with Tenmile Cr. in S1, T98N, R9W, Winneshi | Winneshiek | 5a & 5b | bacteria; biological-fish/inverts; mercury (in fish) |
| IA 01-VOL-0010_1 | Volga River | mouth (S36, T92N, R4W, Clayton Co.) to confluence with Cox Cr. in S21, T92N, R5W, Clayton Co.). | Clayton | 5b & 4a | biological-fish/inverts; bacteria |
| IA 01-VOL-0010_2 | Volga River | from confluence with Cox Cr. (S21, T92N, R5W, Clayton Co.) to bridge crossing in Volga (north line, S10, T92N, R6W, Clay | Clayton | 4a | bacteria |
| IA 01-VOL-0010_3 | Volga River | bridge crossing in Volga (north line, S10, T92N, R6W, Clayton Co.) to confluence with Brush Cr. in S26, T93N, R7W, Fayet | Clayton, Fayette | 5a | mercury (in fish) |
| IA 01-VOL-0020_1 | Volga River | confluence with Brush Cr. (S26, TT93N, R7W, Fayette Co.) to east corporate limit of Fayette (NE 1/4, S28, T93N, R8W, Fay | Fayette | 5a | mercury (in fish) |
| IA 01-VOL-0020_2 | Volga River | east corporate limit of Fayette (NE 1/4, S28, T93N, R8W, Fayette Co.) to confluence with Little Volga R. in S2, T92N, R9 | Fayette | 5a | mercury (in fish) |
| IA 01-WPS-0109_0 | Walnut Creek | mouth (S18, T83N, R2W, Jones Co.) to confluence with White Oak Cr. in S19, T83N, R3W, Jones Co. | Jones | 5b | biological-fish kill |
| IA 02-IOW-0187_1 | Walnut Creek | mouth (S31, T82N, R12W, Benton Co.) to confluence with North Walnut Cr in S7, T81N, R13W, Poweshiek Co. trib S24,T81N,R | Benton, Iowa, Poweshiek | 5b-t | biological-fish/inverts |
| IA 01-WPS-0030_1 | Wapsipinicon River | from L. Wapsipinicon R. (S3, T94N, R13W, Chickasaw Co.) to confluence with unnamed tributary in NW 1/4, S22, T96N, R14W, | Chickasaw | 5b | biological-fish/inverts & mussels |
| IA 01-WPS-0020_6 | Wapsipinicon River | from Crane Cr. (S26, T90N, R11W, Black Hawk Co.) to confluence with E. Fk. Wapsipinicon R. near Tripoli in SE 1/4, S34, | Black Hawk, Bremer | 5b | biological-mussels |
| IA 01-WPS-0010_4 | Wapsipinicon River | from Plum Cr. (S18, T82N, R1E, Clinton Co.) to confuence with Walnut Cr. in S18, T83N, R2W, Jones Co. | Cedar, Clinton, Jones | 5a | bacteria |
| IA 01-WPS-0010_5 | Wapsipinicon River | from Walnut Cr. (S18, T83N, R2W, Jones Co.) to confuence with Buffalo Creek in S10, T84N, R4W, Jones Co. | Jones | 5a & 5b | bacteria; biological-mussels |
| IA 01-WPS-0020_1 | Wapsipinicon River | from Buffalo Cr. (S10 T84N R4W Jones Co.) to confluence with Walton Cr. in S20 T86N R6W Linn Co. | Linn | 5a | bacteria |
| IA 01-UIA-0180_0 | Waterloo Creek | mouth (S35, T100N, R6W, Allamakee Co.) to IA/MN state line (S9, T100N, R6W, Allamakee Co.) | Allamakee | 5p | bacteria |
| IA 01-TRK-0277_0 | West Branch South Cedar Creek | mouth (S31, T93N, R3W, Clayton Co.) to confluence with unnamed tributary in S23, T93N, R4W, Clayton Co | Clayton | 4d | fish kill-restitution sought/received |
| IA 01-NMQ-0100_1 | Whitewater Creek | mouth (S10, T86N, R1W, Jones Co.) to confluence with Curran Branch in S12, T87N, R1W, Dubuque Co. | Dubuque, Jones | 5b & 5p | bacteria; biological-fish/inverts |
| IA 01-NMQ-0100_2 | Whitewater Creek | confluence with Curran Branch (S12 T87N R1W Dubuque Co.) to confluence with unnamed tributary in S18 T88N R1E Dubuque Co. | Dubuque | 5b | biological-fish kill |
| IA 01-YEL-0125_0 | Williams Creek | mouth (S9, T96N, R5W, Allamakee Co.) to confluence with unnamed tributary in S17, T96N, R5W, Allamakee Co. | Allamakee | 5p | bacteria |
| IA 02-CED-0300_0 | Wolf Creek | mouth (S29, T87N, R11W, Black Hawk Co.) to confluence with Twelvemile Cr. in S19, T86N, R13W, Tama Co. | Benton, Black Hawk, Tama | 5p | bacteria |
| IA 01-YEL-0070_0 | Yellow River | mouth (S34, T96N, R3W, Allamakee Co.) to County Road X-26 bridge in S24, T96N, R5W, Allamakee Co. | Allamakee | 5a | bacteria |
| IA 01-YEL-0080_1 | Yellow River | from County Road X-26 (S24, T96N, R5W, Allamakee Co.) to old Hwy 51 crossing in NE 1/4, S11, T96N, R6W, Allamakee Co. | Allamakee | 5b-t | biological-fish/inverts |
| IA 01-YEL-0080_2 | Yellow River | from old Hwy 51 crossing (NE 1/4, S11, T96N, R6W, Allamakee Co.) to confluence with N. Fk.Yellow R. in S13, T96N, R7W, W | Allamakee, Winneshiek | 5a, 5b & 5p | bacteria; low DO; biological-fish/inverts |
| IA 01-YEL-0080_3 | Yellow River | from N. Fk. Yellow R. (S13, T96N, R7W, Allamakee Co.) to confluence with unnamed tributary in SE 1/4, S8, T96N, R7W, Win | Winneshiek | 5b & 5p | bacteria; biological-fish/inverts |