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South Dakota State Report

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Water Quality Data Available for this Watershed

South Dakota, Lower Moreau Watershed


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Assessment Summary for Reporting Year 2010
South Dakota, Lower Moreau Watershed

Description of this table
Click here to list Threatened and Impaired Waters Only
NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report.
Coal Springs Reservoir SD-MU-L-COAL_SPRINGS_01 Perkins County Waterbody Map Freshwater Reservoir 90.9 Acres Not_Assessed  
Dewberry Dam SD-MU-L-DEWBERRY_01 Dewey County Waterbody Map Freshwater Reservoir 65.0 Acres Not_Assessed  
Moreau River SD-MU-R-MOREAU_01 North And South Forks To Ziebach/Perkins County Line Waterbody Map River 93.4 Miles Impaired TMDL needed
Moreau River SD-MU-R-MOREAU_02 Ziebach/Perkins County Line To Green Grass Waterbody Map River 78.3 Miles Impaired TMDL needed
Moreau River SD-MU-R-MOREAU_03 Green Grass To Mouth Waterbody Map River 98.3 Miles Impaired TMDL needed
Thunder Butte Creek SD-MU-R-THUNDER_BUTTE_01 Headwaters To Mouth Waterbody Map Creek 134.4 Miles Threatened TMDL needed

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Causes of Impairment for Reporting Year 2010

South Dakota, Lower Moreau

Description of this table
NOTE: Click on the underlined "Cause of Impairment" value to see a listing of those waters with that cause of impairment.
Size of Assessed Waters with Listed Causes of Impairment
Salinity 270.0  
Fecal Coliform 98.3  
Total Suspended Solids (TSS) 270.0  
Escherichia Coli (E. Coli) 98.3  

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Probable Sources Contributing to Impairments for Reporting Year 2010

South Dakota, Lower Moreau Watershed

Description of this table
Size of Assessed Waters with Probable Sources of Impairments
Crop Production (Crop Land Or Dry Land) 98.3  
Livestock (Grazing Or Feeding Operations) 98.3  
Natural Sources 270.0  

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TMDL Alternatives by Cause of Impairment for Reporting Year 2010


South Dakota, Lower Moreau Watershed


No TMDL Alternatives reported.

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Cumulative TMDLs by Pollutant

South Dakota, Lower Moreau 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
Ammonia color.gif 2 2

Total: 2 TMDLs; 0 Causes of Impairment



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