| WBID | Waterbody | Location | County(s) | IR Category | Impairment(s) |
| IA 03-NSK-00330-L_0 | Arbor Lake | Poweshiek County, S20,T80N,R16W, W edge of Grinnell | Poweshiek | 4a | nutrients; siltation |
| IA 04-LDM-03080-L_0 | Badger Creek Lake | Madison County, S11,T77N,R27W, 9 mi. E of Earlham. | Madison | 4a | siltation; nutrients |
| IA 03-SSK-0057_0 | Ballard Creek | mouth to unnamed tributary in S15, T82N, R24W, Story Co. | Story | 5b | fishkill |
| IA 02-IOW-0180_2 | Bear Creek | from confluence with L. Bear Cr. (S16, T80N, R13W, Poweshiek Co.) to confluence with unnamed tributary in SW 1/4, S9, T8 | Poweshiek | 5b | biological |
| IA 04-UDM-0110_1 | Beaver Creek | mouth (S17, T79N, R24W, Polk Co.) to the Polk/Dallas county line (west line, S18, T80N, R25W, Polk Co. | Polk | 5p | bacteria |
| IA 04-RAC-01750-L_0 | Beaver Lake | Dallas County, S20,T78N,R29W, 1.5 mi. N of Dexter. | Dallas | 5a | algae; turbidity |
| IA 04-UDM-0140-L_0 | Big Creek Lake | Polk County, S22,T81N,R25W, near Polk City | Polk | 5a | bacteria |
| IA 05-CHA-00690-L_0 | Bob White Lake | Wayne County, S4,T68N,R22W, 1 mi W of Allerton. | Wayne | 5a | bacteria; algae |
| IA 04-LDM-0228_0 | Camp Creek | mouth (S7, T77N, R21W, Marion Co.) to confluence with unnamed tributary in S14, T79N, R22W, Polk Co. | Jasper, Marion, Polk, Warren | 4a | sediment; nutrients |
| IA 02-CED-03060-L_0 | Casey Lake (aka Hickory Hills Lake) | Tama County, S13,T86N,R13W, 6 mi N of Dysart. | Tama | 5a | algae; turbidity; pH |
| IA 04-LDM-0160_0 | Cedar Creek | mouth (S33, T75N, R17W, Mahaska Co.) to confluence with North Cedar Cr. in S15, T74N, R18W, Marion Co. | Mahaska, Marion | 5p | bacteria |
| IA 04-LDM-0170_0 | Cedar Creek | N Cedar Cr->Mormon Br S5,T71N,R18W, Monroe Co | Marion, Monroe | 5b | biological |
| IA 04-LDM-03085-L_0 | Cedar Lake | Madison County, S19,T76N,R27W near Winterset. | Madison | 5a | atrazine |
| IA 05-CHA-00302_0 | Chariton Creek | mouth (S19, T71N, R23W, Lucas Co.) to headwaters | Clarke, Lucas, Wayne | 5p | bacteria |
| IA 05-CHA-00301_0 | Chariton River | from confluence with Chariton Creek (S19, T71N, R23W, Lucas Co.) to headwaters | Clarke, Decatur, Lucas | 5p | bacteria |
| IA 05-CHA-0030_1 | Chariton River | from upper end of Rathbun Lake to Hwy 14, Lucas Co. | Lucas | 5a & 5p | low DO; bacteria |
| IA 05-CHA-0030_2 | Chariton River | from Hwy 14 (Lucas Co.) to confluence with Chariton Cr. in S19, T71N, R23W, Lucas Co. | Lucas | 5b | biological |
| IA 05-CHA-0010_2 | Chariton River | from the Highway 2 crossing (S27, T69N, R17W, Appanoose Co.) to Rathbun Dam in S35, T69N, R18W, Appanoose Co. | Appanoose | 5p | bacteria |
| IA 05-CHA-0040_0 | Cooper Creek | mouth to trib S9,T68N,R19W Appanoose Co. | Appanoose | 5b | biological |
| IA 05-CHA-00620-L_0 | Corydon Reservoir | Wayne County, S24,T69N,R22W, at Corydon. | Wayne | 4a | atrazine |
| IA 04-UDM-0030_1 | Des Moines River | from upper end of Saylorville Reservior to Fraser Dam in S34, T85N, R27W, Boone Co. | Boone, Dallas, Polk, Webster | 5p | bacteria |
| IA 04-LDM-0040_1 | Des Moines River | upper end of Red Rock Reservoir (W line, S34, T77N, R20W, Marion Co.) to confluence with South R. in S12, T77N, R22W, Wa | Marion, Polk, Warren | 5a | bacteria |
| IA 04-LDM-0040_2 | Des Moines River | from confluence with South R. (S12, T77N, R22W, Warren Co.) to confluence with North R. in S36, T78N, R23W, Polk Co. | Polk, Warren | 5a | bacteria |
| IA 04-LDM-0040_3 | Des Moines River | from confluence with North R. (S36, T78N, R23W, Polk Co.) to confluence with Raccoon R. in S10, T78N, R24W, Polk Co. | Polk | 5a | bacteria |
| IA 04-UDM-0010_1 | Des Moines River | from confluence with Raccoon R. in Des Moines to Center Street Dam in Des Moines, Polk Co. | Polk | 5p | bacteria |
| IA 04-UDM-0010_2 | Des Moines River | from Center Street Dam in Des Moines to the Interstate 80/35 bridge in S17, T79N, R24W, Polk Co. | Polk | 5a | bacteria; nitrate |
| IA 04-LDM-0020_2 | Des Moines River | from Ottumwa dam (S24, T72N, R14W, Wapello Co.) to confluence with Cedar Cr in S33, T75N, R17W, Mahaska Co. | Mahaska, Monroe, Wapello | 5a | bacteria |
| IA 04-LDM-0020_3 | Des Moines River | from confluence with Cedar Cr. (S33, T75N, R17W, Mahaska Co.) to dam of Red Rock Reservoir in S19, T76N, R18W, Marion Co | Mahaska, Marion | 4c | fish kills |
| IA 05-CHA-0067_0 | Dick Creek | mouth to trib S18,T69N,R22W Wayne Co. | Wayne | 5b | biological |
| IA 04-UDM-01650-L_0 | Don Williams Lake | Boone County, S5,T84N,R27W, 5 mi. N of Ogden. | Boone | 4a | organic enrichment; siltation |
| IA 05-GRA-0030_0 | East Fork Medicine Creek | IA/MO line to trib S24,T68N,R22W Wayne Co | Wayne | 5b | biological |
| IA 04-LDM-02190-L_0 | East Lake (Osceola) | Clarke County, S16,T72N,R25W, 0.5 mi E of Osceola. | Clarke | 4a | algae, turbidity |
| IA 04-LDM-00490-L_0 | Easter Lake | Polk County, S19,T78,R23W, SE edge of Des Moines. | Polk | 4a | siltation; nutrients |
| IA 05-CHA-0077_0 | Fivemile Creek | mouth (S35, T71N, R22W, Lucas Co.) to confluence with unnamed tributary in S29, T71N, R22W, Lucas Co. | Lucas, Wayne | 5p | bacteria |
| IA 02-IOW-00660-L_0 | Green Castle Lake | Marshall County, S8,T82N,R17W, 1 mi. S of Ferguson. | Marshall | 5a | pH |
| IA 03-NSK-0025-L_0 | Hawthorne Lake (aka Barnes City Lake) | Mahaska County, S15, T77N,R14W, 2 miles South of Barnes City. | Mahaska | 5a | turbidity |
| IA 03-SSK-00530-L_0 | Hickory Grove Lake | Story County, S24,T83N,R22W, 2.5 mi SW of Colo. | Story | 5a | bacteria |
| IA 05-CHA-0068_0 | Honey Creek | mouth (S26, T71N, R20W, Lucas Co.) to confluence with unnamed tribuary in S10 ,T71N, R20W, Lucas Co. | Lucas | 5p | bacteria |
| IA 05-CHA-0056_0 | Honey Creek | from upper end of Honey Creek arm of Rathbun Lake (NW 1/4, S8, T70N, R18W, Appanoose Co.) to headwaters in NW 1/4, S27, | Appanoose, Monroe | 5p | bacteria |
| IA 04-LDM-02718-L_0 | Hooper Area Pond | Warren County, S26,T75N,R24W, 5 mi SSW of Indianola. | Warren | 5a | pH |
| IA 03-SSK-0040_0 | Indian Creek | mouth (S32, T80N, R20W, Jasper Co.) to confluence of East Indian and West Indian creeks in S16, T82N, R22W, Story Co. | Jasper, Polk, Story | 5p | bacteria |
| IA 02-IOW-0060_4 | Iowa River | from confluence Timber Cr. (S3, T83N, R17W, Marshall Co.) to confluence with Asher Cr. in S27, T84N, R18W, Marshall Co. | Marshall | 5a | bacteria |
| IA 02-IOW-0060_5 | Iowa River | from confluence with Asher Cr. at Marshalltown (S27, T84N, R18W, Marshall Co.) to confluence with Minerva Cr. in S2, T84 | Marshall | 5a | bacteria |
| IA 05-CHA-0063_0 | Jackson Creek | mouth (S1, T70N, R21W, Wayne Co.) to confluence with unnamed tributary in S12, T68N, R21W, Wayne Co. | Wayne | 5b & 5p | biological; bacteria |
| IA 05-CHA-0062_0 | Jordan Creek | mouth (S1, T70N, R21W, Wayne Co.) to confluence with unnamed tributary in E 1/2, NW 1/4, S26, T70N, R21W, Wayne Co. | Wayne | 5b & 5p | biological; bacteria |
| IA 04-LDM-02615-L_0 | Lake Ahquabi | Warren County, S14,T75N,R24W, 4 mi SSW of Indianola. | Warren | 5a | algae |
| IA 03-SSK-00120-L_0 | Lake Keomah | Mahaska County, S13,T75N,R15W, 4.5 mi E of Oskaloosa. | Mahaska | 5a | bacteria; algae; turbidity; pH |
| IA 04-LDM-00270-L_0 | Lake Miami | Monroe County, S20,T73N,R17W, 5 mi. SE of Lovilia. | Monroe | 4a | siltation; nutrients |
| IA 03-SSK-0056-L_0 | Lake Patoka | T80N R22W Section 29 SE, East of Bondurant on Hwy 65 | Polk | 5b | fishkill |
| IA 02-IOW-0185_1 | Little Bear Creek | mouth (S16, T80N, R13W, Poweshiek Co.) to confluence with unnamed tributary in SE 1/4, NW 1/4, S29, T80N, R14W, Poweshie | Poweshiek | 5b | biological |
| IA 04-UDM-0124_0 | Little Beaver Creek | mouth (S14, T81N, R27W, Dallas Co.) to confluence with unnamed tributary in S29, T82N, R27W, Boone Co. | Boone, Dallas | 4c | habitat alterations |
| IA 05-GRA-0080_0 | Little River | IA/MO line to dam S30,T69N,R25W Decatur | Decatur | 5b | biological |
| IA 05-GRA-00810-L_0 | Little River Watershed Lake | Decatur County, S19, T69N,R26W, NW corner of Leon. | Decatur | 5a | algae; turbidity |
| IA 03-NSK-00350-L_0 | Mariposa Lake | Jasper County, S32,T81N,R18W, 6 mi. NE of Newton. | Jasper | 4a | algae, turbidity |
| IA 04-LDM-0270_0 | Middle River | mouth (Warren Co.) to confluence with Clanton Cr. in S28, T76N, R25W, Warren Co. | Warren | 5b & 5p | bacteria; biological |
| IA 04-LDM-0140_1 | Muchakinock Creek | mouth (SW 1/4, NW 1/4, S6, T73N, R15W, Wapello Co.) to confluence with Little Muchakinock Cr. in S34, T75N, R16W, Mahask | Mahaska, Monroe, Wapello | 5b | biological |
| IA 04-LDM-0140_2 | Muchakinock Creek | from confluence with Little Muchakinock Cr. (S34, T75N, R16W, Mahaska Co.) to confluence with unnamed tributary in NW 1/ | Mahaska | 5b | biological |
| IA 05-GRA-01010-L_0 | Nine Eagles Lake | Decatur County, S18,T67N,R25W, 3.5 mi. SE of Davis City. | Decatur | 5a | bacteria; mercury |
| IA 05-CHA-0066_0 | Ninemile Creek | mouth (S4, T69N, R22W, Wayne Co.) to confluence with unnamed tributary in S31, T70N, R22W, Wayne Co. | Wayne | 5b & 5p | biological; bacteria |
| IA 04-LDM-02726-L_0 | North Banner Lake | entire waterbody | Warren | 5a | mercury in fish |
| IA 04-LDM-0300_2 | North River | from Co. Rd. R-63 (S16, T77N, R24W, Warren Co.) to confluence with Badger Cr. in S33, T77N, R25W, Warren Co. | Warren | 5b & 5p | bacteria; biological |
| IA 03-NSK-0020_2 | North Skunk River | from the Mahaska/Poweshiek line to confluence with Sugar Cr. in S20, T78N, R16W, Poweshiek Co. | Poweshiek | 5b | biological |
| IA 03-NSK-0030_0 | North Skunk River | from confluence with Sugar Cr. (S20, T78N, R16W, Poweshiek Co.) to confluence with Snipe Cr. in S22, T81N, R19W, Jasper | Jasper, Poweshiek | 5b | biological; fish kill |
| IA 02-IOW-02095-L_0 | Otter Creek Lake | Tama County, S31,T84N,R14W, 5 mi NE of Toledo. | Tama | 5a | algae; turbidity; ammonia |
| IA 04-RAC-0010_1 | Raccoon River | mouth (at Des Moines, Polk Co.) to the Polk/Dallas county line | Polk | 4a | bacteria; nitrate |
| IA 04-RAC-0010_2 | Raccoon River | from the Polk/Dallas county line to conflulence of North Raccoon and South Raccoon rivers in Dallas Co. | Dallas | 4a | bacteria; nitrate |
| IA 05-CHA-0020-L_2 | Rathbun Reservoir | from main lake basin uplake to inflow of South Fork Chariton River in S36, T70N, R20W, Wayne Co. | Appanoose, Wayne | 5a | turbidity |
| IA 05-CHA-0020-L_3 | Rathbun Reservoir | from main lake basin (state highway 142) uplake to inflow of the Chariton River at the Wayne/Lucas county line. | Appanoose, Wayne | 5a | turbidity |
| IA 04-LDM-02296-L_0 | Red Haw Lake | Lucas County, S28,T71N,R21W, 2 mi SE of Chariton. | Lucas | 5a | bacteria |
| IA 04-LDM-00380-L_0 | Roberts Creek Lake | Marion County, S4,T76N,R19W, 6 mi NE of Knoxville. | Marion | 5a | algae; turbidity |
| IA 03-NSK-00340-L_0 | Rock Creek Lake | Jasper County, S17,T80N,R17W, 4 mi. ENE of Kellogg. | Jasper | 5a | bacteria |
| IA 04-UDM-0020-L_0 | Saylorville Reservoir | Polk County, Saylorville Dam to Polk-Dallas county line. | Polk | 5a | bacteria |
| IA 04-LDM-0090_2 | Soap Creek | from confluence with Little Soap Cr. (S1, T70N, R13W, Davis Co.) to confluence with unnamed tributary in S31, T71N, R16W | Appanoose, Davis, Monroe | 5b | biological |
| IA 04-LDM-02725-L_0 | South Banner Lake | Warren County, S30,T77N,R23W, 5 mi N of Indianola. | Warren | 5a | mercury in fish |
| IA 05-CHA-0060_1 | South Fork Chariton River | mouth (at Rathbun Lake) to confluence with Ninemile Cr. in S4, T69N, R22W, Wayne Co. | Wayne | 5b & 5p | biological, bacteria |
| IA 05-CHA-0060_2 | South Fork Chariton River | from confluence with Ninemile Cr. (S4, T69N, R22W, Wayne Co.) to outfall of Bob White Lake in S4, T68N, R22W, Wayne Co. | Wayne | 5b & 5p | biological; bacteria |
| IA 04-RAC-0170_0 | South Raccoon River | mouth (S21, T78, R27W, Dallas Co.) to confluence with Middle Raccoon R. in S9, T78N, R29W near Redfield in Dallas Co | Dallas | 5p | bacteria |
| IA 04-LDM-0230_0 | South River | mouth (Warren Co.) to confluence with Squaw Cr. in S2, T75N, R24W, Warren Co. | Polk, Warren | 5p | bacteria |
| IA 03-SSK-0020_1 | South Skunk River | from confluence with Indian Creek (S32, T80N, R20W, Jasper Co.) to outfall of Ames wastewater treatment plant in SW 1/4, | Jasper, Polk, Story | 5p | bacteria |
| IA 03-SSK-0030_2 | South Skunk River | from the Ames Water Works dam in River Valley Park at Ames (S36, T84N, R24W, Story Co.) to the Co. Rd. at north line of | Story | 5a | bacteria |
| IA 03-SSK-0010_3 | South Skunk River | from the Highway 63 bridge north of Oskaloosa (S25, T76N, R16W, Mahaska Co.) to confluence with Elk Cr. in NE 1/4, S19, | Mahaska | 5a & 5p | bacteria; nitrate |
| IA 04-LDM-0212_0 | South White Breast Creek | mouth (S3, T71N, R24W, Clarke Co.) to headwaters | Clarke | 4c | habitat alterations |
| IA 05-GRA-0040_0 | Thompson River | from the Iowa/Missouri state line to confluence with Long Cr. in SW 1/4, S8, T69N, R26W, Decatur Co. | Decatur | 5a | bacteria |
| IA 02-IOW-02195-L_0 | Union Grove Lake | Tama County, S33,T85N,R16W, 2.5 mi NW of Garwin. | Tama | 5a | bacteria; pH; algae; turbidity |
| IA 05-CHA-0057_0 | Unnamed Tributary to Rathbun Reservoir | mouth to headwaters | Appanoose | 5b | fish kill |
| IA 02-IOW-01885_0 | Unnamed Tributary to Walnut Creek | mouth to headwaters, Poweshiek Co | Poweshiek | 4d | fish kill |
| IA 05-CHA-0061_0 | Walker Branch | mouth (S36, T70N, R20W, Wayne Co.) to confluence with S. Fk. Walker Branch in SE 1/4, S26, T70N, R20W, Wayne Co. | Wayne | 5p | bacteria |
| IA 03-SSK-0058_0 | Walnut Creek | mouth (S5, T82N, R23W, Story Co.) to confluence with unnamed tributary in SE 1/4, S34, T83N, R24W, Story Co. | Story | 5b | biological |
| IA 02-IOW-0187_2 | Walnut Creek | from confluence with North Walnut Cr. (S7, T81N, R13W, Poweshiek Co.) to confluence with unnamed tributary in NW 1/4, S2 | Poweshiek | 5b | biological |
| IA 05-GRA-0070_0 | Weldon River | IA/MO line to Mormon Pool, Decatur Co. | Decatur | 5b | biological |
| IA 05-CHA-0064_0 | West Jackson Creek | mouth to trib S31,T69N,R21W Wayne Co. | Wayne | 5b | biological |
| IA 04-LDM-02690-L_0 | West Lake (Osceola) | Clarke County, S13,T72N,R26W, approx 2 mi W of Osceola. | Clarke | 5a | low DO |
| IA 04-LDM-0200_0 | White Breast Creek | from mouth (S10, T76N, R19W, Marion Co.) to confluence with Little White Breast Cr. in S11, T73, R22, Lucas Co. | Lucas, Marion, Warren | 5a, 5b, & | bacteria; low DO; biological |
| IA 04-LDM-0210_2 | White Breast Creek | from confuence with Brush Cr. (S22, T72N, R23W, Lucas Co.) to confluence with unnamed tributary in S4, T71N, R24W, Clark | Clarke, Lucas | 5b | biological |
| IA 04-LDM-0210_1 | White Breast Creek | from confuence with Little White Breast Cr. (S11, T73N, R22W, Lucas Co.) to confluence with Brush Cr. in S22, T72N, R23W | Lucas | 4c | habitat alterations |
| IA 03-SSK-00118-L_0 | White Oak Conservation Area Lake | Mahaska County, S28,T75N,R14W, 4 mi SSW of Rose Hill. | Mahaska | 5a | algae; turbidity; pH |
| IA 04-LDM-01995-L_0 | Williamson Pond | Lucas County, S27,T73N,R21W, 2 mi. E of Williamson. | Lucas | 4a | turbidity; nutrients |
| IA 05-CHA-0070_0 | Wolf Creek | mouth (S15, T71N, R21W, Lucas Co.) to confluence with unnamed tributary in E 1/2, NW 1/4, S8, T70N, R22W, Wayne Co. | Lucas, Wayne | 5b & 5p | biological; bacteria |
| IA 04-LDM-0340_0 | Yeader Creek | from upper end of Easter Lake (SE 1/4, S23, T78N, R24W, Polk Co.) to Fleur Drive near Des Moines airport (S29, T78N, R24 | Polk | 4a | priority organics (glycol de-icers) |