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Iowa State Report

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Water Quality Data Available for this Watershed

Iowa, Middle Iowa Watershed


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Listed Waters for Reporting Year 2010
Iowa, Middle Iowa Watershed

Description of this table
NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report.
Bear Creek IA 02-IOW-0180_2 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. River 6.61 miles
Bennett Creek IA 02-IOW-0213_0 From Mouth (T83n R15w Sec32 Tama Co.) To Headwaters (T82n R16w Sec16 Tama Co.) Excluding Portion On Mesqwaki Settlement River 5.4 miles
Coralville Reservoir IA 02-IOW-0040-L_0 Johnson County S22t80nr6w (Dam) 3 Mi N Of Iowa City. Freshwater Reservoir 4900 acres
Green Castle Lake IA 02-IOW-00660-L_0 Marshall County S8t82nr17w 1 Mi. S Of Ferguson. Freshwater Lake 16 acres
Hannen Lake IA 02-IOW-01810-L_0 Benton County S34t82nr11w 4 Mi Sw Of Blairstown. Freshwater Lake 38 acres
Iowa River IA 02-IOW-0050_1 From Upper End Of Coralville Reservoir (=U.S. Highway 218 Bridge In Sw 1/4 S22 T81n R7w Johnson Co.) To The State Highway 149 Bridge In S35 T81n R9w Iowa Co. River 16.37 miles
Iowa River IA 02-IOW-0060_4 From Confluence Timber Cr. (S3 T83n R17w Marshall Co.) To Confluence With Asher Cr. In S27 T84n R18w Marshall Co. River 13.66 miles
Iowa River IA 02-IOW-0060_5 From Confluence With Asher Cr. At Marshalltown (S27 T84n R18w Marshall Co.) To Confluence With Minerva Cr. In S2 T84n R19w Marshall Co. River 8.02 miles
Lake Macbride IA 02-IOW-00390-L_0 Johnson County S29t81nr6w 4 Mi. W Of Solon. Freshwater Lake 812 acres
Little Bear Creek IA 02-IOW-0185_1 Mouth (S16 T80n R13w Poweshiek Co.) To Confluence With Unnamed Tributary In Se 1/4 Nw 1/4 S29 T80n R14w Poweshiek Co. River 8.36 miles
Otter Creek Lake IA 02-IOW-02095-L_0 Tama County S31t84nr14w 5 Mi Ne Of Toledo. Freshwater Lake 74 acres
Price Creek IA 02-IOW-0175_2 From Mouth Of Mill Race (S26 T81n R9w Iowa Co.) To Confluence With Unnamed Tributary In Nw 1/4 S8 T81n R9w Iowa Co River 5.5 miles
Price Creek IA 02-IOW-0176_0 From Confluence With Unnamed Trib In Nw1/4 S8 T81n R9w Iowa Co. To Headwaters In S31 T82n R10w Benton Co. River 8.1 miles
Raven Creek IA 02-IOW-0215_0 Mouth (S25 T83nr16w Tama Co.) To W Line Of S35 T83n R16w Tama Co. River 2 miles
Walnut Creek IA 02-IOW-0187_2 River 7.9 miles
Walnut Creek IA 02-IOW-0187_1 Mouth (S31 T82n R12w Benton Co.) To Confluence With North Walnut Cr In S7 T81n R13w Poweshiek Co. Trib S24t81nr15w Poweshiek Co. River 7.28 miles
Walnut Creek IA 02-IOW-0187_2 Rivers and Streams miles
Walnut Creek IA 02-IOW-0187_2 Rivers and Streams miles
Walnut Creek IA 02-IOW-0187_2 River 7.9 miles

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Causes of Impairment for Reporting Year 2010

Iowa, Middle Iowa

Description of this table
Escherichia Coli (E. Coli) 8
Cause Unknown - Biological Integrity 4
Algal Growth/Chlorophyll A 3
pH 3
Secchi Disk Transparency 1

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Cumulative TMDLs by Pollutant

Iowa, Middle Iowa Watershed

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Number of TMDLs Completed" value to see a listing of those approved TMDLs for the pollutant.
Number of Causes of
Impairment Addressed
Escherichia Coli (E. Coli) color.gif 2 3
Algae color.gif 1 2
Nutrients color.gif 1 1
Siltation color.gif 1 1
Turbidity color.gif 1 2
pH color.gif 1 2

Total: 7 TMDLs; 0 Causes of Impairment



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