WBID	Waterbody	Location	Counties	IR Category	Impairment(s)
IA 03-NSK-00330-L_0	Arbor Lake	Poweshiek County S20 T80N R16W W edge of Grinnell	Poweshiek	4a	Algal Grwth/Chlorophyll a--Nutrients--pH--Siltation
IA 04-LDM-03080-L_0	Badger Creek Lake	Madison County S11 T77N R27W 9 mi. E of Earlham.	Madison	4a	Algal Grwth/Chlorophyll a--Noxious aquatic plants--pH--Siltation
IA 03-SSK-0057_0	Ballard Creek	mouth to unnamed tributary in S15 T82N R24W Story Co.	Story	5b	Organic enrichment/Low DO--Unionized Ammonia
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 T80N R14W Poweshiek Co.	Poweshiek	5b	Cause Unknown
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	5a	Salinity/TDS/chlorides
IA 04-UDM-0140-L_0	Big Creek Lake	Polk County S22 T81N R25W near Polk City	Polk	5a	Nutrients--Pathogens--Siltation
IA 05-CHA-00690-L_0	Bob White Lake	Wayne County S4 T68N R22W 1 mi W of Allerton.	Wayne	5a	Pathogens--Siltation--Turbidity
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	Cause Unknown--Other habitat alterations
IA 02-CED-03060-L_0	Casey Lake (aka Hickory Hills Lake)	Tama County S13 T86N R13W 6 mi N of Dysart.	Tama	5a	Noxious aquatic plants--Nutrients--pH--Siltation
IA 04-LDM-03085-L_0	Cedar Lake	Madison County S19 T76N R27W near Winterset.	Madison	5a	Atrazine--Nitrate
IA 05-CHA-00330-L_0	Centerville Reservoir Lower	Appanoose County S12 T68N R18W near Centerville.	Appanoose	5a	Atrazine
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	Cause Unknown--Other habitat alterations--Siltation
IA 05-CHA-0030_1	Chariton River	from upper end of Rathbun Lake to Hwy 14 Lucas Co.	Lucas	5a	Organic enrichment/Low DO
IA 05-CHA-00620-L_0	Corydon Reservoir	Wayne County S24 T69N R22W at Corydon.	Wayne	4a	Atrazine
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	Nitrate--Pathogens
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	Unknown toxicity
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	Pathogens--PCB's
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	Pathogens
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	Pathogens
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 Warren Co.	Marion--Polk--Warren	5a	Pathogens
IA 05-CHA-0067_0	Dick Creek	mouth to trib S18 T69N R22W Wayne Co.	Wayne	5b	Cause Unknown
IA 04-UDM-01650-L_0	Don Williams Lake	Boone County S5 T84N R27W 5 mi. N of Ogden.	Boone	4a	Algal Grwth/Chlorophyll a--Nutrients--Siltation--Turbidity
IA 04-LDM-02190-L_0	East Lake (Osceola)	Clarke County S16 T72N R25W 0.5 mi E of Osceola.	Clarke	5a	Algal Grwth/Chlorophyll a--Noxious aquatic plants--Nutrients--Siltation--Turbidity
IA 04-LDM-00490-L_0	Easter Lake	Polk County S19 T78 R23W SE edge of Des Moines.	Polk	4a	Algal Grwth/Chlorophyll a--Nutrients--Siltation--Turbidity
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	5a	Organic enrichment/Low DO
IA 05-GRA-01550-L_0	Home Pond	Decatur County S3 T37N R27W at NW edge of Lamoni.	Decatur	5a	Atrazine
IA 04-LDM-02718-L_0	Hooper Area Pond	Warren County S26 T75N R24W 5 mi SSW of Indianola.	Warren	5a	Algal Grwth/Chlorophyll a--Nutrients--pH--Turbidity
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	Pathogens
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 T84N R19W Marshall Co.	Marshall	5a	Pathogens
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	Cause Unknown
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	Cause Unknown
IA 03-SSK-00120-L_0	Lake Keomah	Mahaska County S13 T75N R15W 4.5 mi E of Oskaloosa.	Mahaska	5a	Algal Grwth/Chlorophyll a--Noxious aquatic plants--Nutrients--pH--Siltation--Turbidity
IA 04-LDM-00270-L_0	Lake Miami	Monroe County S20 T73N R17W 5 mi. SE of Lovilia.	Monroe	4a	Algal Grwth/Chlorophyll a--Exotic species--Siltation--Turbidity
IA 03-SSK-0056-L_0	Lake Patoka	T80N R22W Section 29 SE East of Bondurant on Hwy 65	Polk	5b	Chlorine
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	Other habitat alterations
IA 05-GRA-0080_0	Little River	IA/MO line to dam S30 T69N R25W Decatur	Decatur	5b	Other habitat alterations
IA 05-GRA-00810-L_0	Little River Watershed Lake	Decatur County S19 T69N R25W approx 2 mi NW of Leon.	Decatur	5a	Atrazine--Mercury--Noxious aquatic plants--Nutrients--Turbidity
IA 03-SSK-0090_0	Long Dick Creek	mouth (S18 T85N R23W Story Co.) to N. line of S34 T86N R23W Hamilton Co.	Hamilton--Story	5b	Cause Unknown--Organic enrichment/Low DO--Other habitat alterations
IA 03-NSK-00350-L_0	Mariposa Lake	Jasper County S32 T81N R18W 6 mi. NE of Newton.	Jasper	4a	Algal Grwth/Chlorophyll a--Noxious aquatic plants--Nutrients--Siltation--Turbidity
IA 04-LDM-0270_0	Middle River	mouth (Warren Co.) to confluence with Clanton Cr. in S28 T76N R25W Warren Co.	Warren	5b	Organic enrichment/Low DO--Other habitat alterations
IA 04-LDM-0130_0	Miller Creek	mouth (S7 T73N R15W Wapello Co.) to unnamed tributary in S29 T73N R16W Monroe Co.	Monroe--Wapello	5b	Cause Unknown--Organic enrichment/Low DO
IA 04-LDM-02294-L_0	Morris Lake	Lucas County S26 T72N R21W approx 3 mi E of Chariton.	Lucas	5a	Atrazine
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 1/4 SW 1/4 S27 T76N R17W Mahaska Co.	Mahaska	5b	Other habitat alterations--Unknown toxicity
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 Mahaska Co.	Mahaska--Monroe--Wapello	5b	Nutrients--Other habitat alterations--Unknown toxicity
IA 05-GRA-01010-L_0	Nine Eagles Lake	Decatur County S18 T67N R25W 3.5 mi. SE of Davis City.	Decatur	5a	Mercury--Nutrients--Pathogens--Suspended solids--Turbidity
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	Cause Unknown
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	Other habitat alterations--Siltation--Turbidity
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 Co.	Jasper--Poweshiek	4c	Other habitat alterations
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	Other habitat alterations--Siltation--Suspended solids--Turbidity
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	5a	Nitrate--Pathogens
IA 04-RAC-0010_1	Raccoon River	mouth (at Des Moines Polk Co.) to the Polk/Dallas county line	Polk	5a	Nitrate--Pathogens
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 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 04-LDM-00380-L_0	Roberts Creek Lake	Marion County S4 T76N R19W 6 mi NE of Knoxville.	Marion	5a	Suspended solids--Turbidity
IA 03-NSK-00340-L_0	Rock Creek Lake	Jasper County S17 T80N R17W 4 mi. ENE of Kellogg.	Jasper	5a	Algal Grwth/Chlorophyll a--Nutrients--Pathogens--Siltation--Turbidity
IA 04-UDM-0020-L_0	Saylorville Reservoir	Polk County Saylorville Dam to Polk-Dallas county line.	Polk	5a	Noxious aquatic plants--Organic enrichment/Low DO--Pathogens--Turbidity
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 MonroeCo	Appanoose--Davis--Monroe	5b	Cause Unknown
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	Cause Unknown
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	Cause Unknown
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 S6 T85 R23W Story Co (approximately 1 mile NNE of Story City)	Story	5a	Pathogens
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 T77N R17W Mahaska Co.	Mahaska	5a	Atrazine--Mercury--Nitrate--Pesticides
IA 03-SSK-0030_3	South Skunk River	from the north line of S6 T85 R23W Story Co (approximately 1 mile NNE of Story City) to confluence with Drainage Ditch 71 in SE 1/4 S11 T86N R24W Hamilton Co.	Hamilton--Story	5b	Cause Unknown
IA 04-LDM-0212_0	South White Breast Creek	mouth (S3 T71N R24W Clarke Co.) to headwaters	Clarke	4c	Other 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	Pathogens
IA 02-IOW-02195-L_0	Union Grove Lake	Tama County S33 T85N R16W 2.5 mi NW of Garwin.	Tama	5a	Algal Grwth/Chlorophyll a--Noxious aquatic plants--Nutrients--Pathogens--pH--Siltation--Turbidity
IA 04-LDM-0133_0	Unnamed Creek (near Eddyville)	mouth (SW 1/4 S6 T73N R15W Wapello Co.) to headwaters in S11 T73N R16W Monroe Co.	Monroe--Wapello	4d	Organic enrichment/Low DO--Unionized Ammonia
IA 05-CHA-0057_0	Unnamed Tributary to Rathbun Reservoir	mouth to headwaters	Appanoose	5b	Unknown toxicity
IA 02-IOW-01885_0	Unnamed Tributary to Walnut Creek	mouth to headwaters Poweshiek Co	Poweshiek	4d	Unknown toxicity
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 S24 T81N R15W Poweshiek Co.	Poweshiek	5b	Other habitat alterations--Siltation
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 R15W Poweshiek Co.	Benton--Iowa--Poweshiek	5b	Cause Unknown
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	Cause Unknown
IA 05-GRA-0070_0	Weldon River	IA/MO line to Mormon Pool Decatur Co.	Decatur	5b	Cause Unknown
IA 05-CHA-0064_0	West Jackson Creek	mouth to trib S31 T69N R21W Wayne Co.	Wayne	5b	Cause Unknown
IA 04-LDM-02690-L_0	West Lake (Osceola)	Clarke County S13 T72N R26W approx 2 mi W of Osceola.	Clarke	4a	Atrazine--Nutrients--Siltation--Suspended solids
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 Clarke Co.	Clarke--Lucas	5b	Other habitat alterations--Siltation
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 Co.	Lucas	4c	Other habitat alterations
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	Cause Unknown--Organic enrichment/Low DO
IA 03-SSK-00118-L_0	White Oak Conservation Area Lake	Mahaska County S28 T75N R14W 4 mi SSW of Rose Hill.	Mahaska	5a	Algal Grwth/Chlorophyll a--Noxious aquatic plants--Nutrients--pH--Siltation--Turbidity
IA 04-LDM-01995-L_0	Williamson Pond	Lucas County S27 T73N R21W 2 mi. E of Williamson.	Lucas	4a	Noxious aquatic plants--Turbidity
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 R24W Polk Co.)	Polk	4a	Organic enrichment/Low DO--Priority organics