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South Carolina State Report

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Water Quality Data Available for this Watershed

South Carolina, Lake Marion Watershed


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Features

Assessment Summary for Reporting Year 2010
South Carolina, Lake Marion 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.
Waterbody Name Waterbody ID Location Map Waterbody Type Size Units Status State TMDL Development Status
C-057 SCC-057_FISH_L_06 Lake Marion @ Daniels 4h Camp; County: Calhoun Waterbody Map Freshwater Lake .0 Acres Impaired TMDL needed
C-058 SCC-058_L_06 Lk Inspiration - St Matthews (Front Of Health Dept); County: Calhoun Waterbody Map Reservoir 12.9 Acres Impaired TMDL needed
C-063 SCC-063_S_06 Halfway Swp Ck At S-09-43 3 Mi E Of St Matthews; County: Calhoun Waterbody Map Stream 4.9 Miles Impaired TMDL completed
Cl-042 SCCL-042_L_06 Lake Marion Forebay, Spillway Marker 44 (Sc-022); County: Clarendon Waterbody Map Reservoir 1,048.6 Acres Good  
Cw-241 SCCW-241_S_06 Halfway Swp Ck At S-09-72; County: Calhoun Waterbody Map Stream 4.7 Miles Impaired TMDL completed
Cw-242 SCCW-242_S_06 Unnamed Trib To Halfway Swamp Ck At S-09-158; County: Calhoun Waterbody Map Stream 1.1 Miles Not_Assessed  
Cw-243 SCCW-243_S_06 Big Branch At S-14-41 (Sc-047); County: Clarendon Waterbody Map Stream 7.2 Miles Impaired TMDL needed
Cw-244 SCCW-244_S_06 Jacks Ck At S-14-76 (Sc-013); County: Clarendon Waterbody Map Stream 2.7 Miles Good  
Cw-517 SCCW-517_S_08 Furtick Branch@ County Rd. 11; County: Calhoun Waterbody Map Stream 1.1 Miles Impaired TMDL completed
Cw-546 SCCW-546_S_08 Lyons Creek@ County Rd. 20; County: Calhoun Waterbody Map Stream 4.5 Miles Impaired TMDL completed
Rl-01001 SCRL-01001_L_06 Lake Marion 2.5 M Directly Sw Of I-95 Bridge (Middle) Over Lake; County: Clarendon Waterbody Map Reservoir 1,239.6 Acres Not_Assessed  
Rl-01011 SCRL-01011_L_06 Lake Marion 1.10 M Sse Of Santee Nat. Wildlife Refuge And 1mi S Of Eagle Point (Sc-035); County: Clarendon Waterbody Map Reservoir 537.5 Acres Impaired TMDL needed
Rl-01021 SCRL-01021_L_06 Lake Marion 3 M Wsw Of Eadytown In Se Corner Of The Lake Marion; County: Berkeley Waterbody Map Reservoir 891.1 Acres Not_Assessed  
Rl-01031 SCRL-01031_L_08 Lake Marion 3.75 M Directly Sw Of I-95 Bridge Over Lake Marion; County: Clarendon Waterbody Map Reservoir 827.3 Acres Not_Assessed  
Rl-02306 SCRL-02306_L_06 Lk Marion @ Jack'S Ck Embayment; Use Santee Cooper Sc-012; County: Clarendon Waterbody Map Reservoir 870.0 Acres Impaired TMDL needed
Rl-02308 SCRL-02308_L_06 Lk Marion @ Channel Marker 69; Use Santee Cooper Sc-016; County: Clarendon Waterbody Map Reservoir 1,752.5 Acres Impaired TMDL needed
Rl-02310 SCRL-02310_L_06 Lake Marion Near Santee Natl Wildlife Refuge; County: Clarendon Waterbody Map Reservoir 1,426.0 Acres Not_Assessed  
Rl-03358 SCRL-03358_L_08 Lake Marion 4.0 Mi Se Of I-95; County: Clarendon Waterbody Map Reservoir 713.3 Acres Not_Assessed  
Rl-03360 SCRL-03360_L_06 Lake Marion 0.4 Mi W Of Dam; County: Clarendon Waterbody Map Reservoir 1,404.5 Acres Not_Assessed  
Rl-04384 SCRL-04384_L_06 Lake Marion 3.8 Mi W Of Eadytown; County: Berkeley Waterbody Map Reservoir 1,295.4 Acres Good  
Rl-04386 SCRL-04386_L_06 Lake Marion Eutaw Creek Arm Near Cathead Boat Ramp; County: Orangeburg Waterbody Map Reservoir 901.7 Acres Good  
Rl-05402 SCRL-05402_L_08 Lake Marion 3.5 Mi Nnw Of Bridge Over Diversion Canal On Sc 45; County: Berkeley Waterbody Map Reservoir 1,676.0 Acres Good  
Rl-05406 SCRL-05406_L_08 Lake Marion 3.25 Mi S Of Log Jam Landing; County: Clarendon Waterbody Map Reservoir 1,435.9 Acres Good  
Rl-05464 SCRL-05464_L_08 Lake Marion 4.97 Mi Se Of I-95 Bridge Over Lake; County: Clarendon Waterbody Map Reservoir 1,172.5 Acres Good  
Rs-01051 SCRS-01051_S_06 White Oak Creek At County Rd 345, 4.5 M Ese Of Summerton; County: Clarendon Waterbody Map Stream 3.5 Miles Impaired TMDL needed
Rs-03501 SCRS-03501_S_06 Potato Creek At S-14-715 (Rogers Road) 5.5 Mi Se Of Summerton; County: Clarendon Waterbody Map Stream 2.0 Miles Impaired TMDL needed
Rs-03505 SCRS-03505_S_06 Unnamed Tributary To Tawcaw Creek At S-14-559 (William Brunson Road) 4.6 Mi Se Of Summerton; County: Clarendon Waterbody Map Stream 2.8 Miles Impaired TMDL needed
Rs-04389 SCRS-04389_S_06 Warley Creek At Co Rd S-09-287 3.4 Mi Nw Of Lone Star; County: Calhoun Waterbody Map Stream 3.5 Miles Impaired TMDL needed
Sc-006 SCSC-006_S_06 Warley Creek At Hwy. 267 Bridge; County: Calhoun Waterbody Map Stream 2.6 Miles Impaired TMDL needed
Sc-007 SCSC-007_S_06 County: Calhoun Waterbody Map Stream 1.8 Miles Not_Assessed  
Sc-009 SCSC-009_S_06 Spring Crove Creek @ Secondary Road 26 Bridge; County: Clarendon Waterbody Map Stream 8.1 Miles Impaired TMDL needed
Sc-011 SCSC-011_S_06 Big Poplar Creek @ Secondary Road 105 Bridge; County: Orangeburg Waterbody Map Stream 7.0 Miles Impaired TMDL needed
Sc-014 SCSC-014_L_06 Upper Lake Marion @ Headwaters Of Chapel Branch Creek; County: Orangeburg Waterbody Map Reservoir 42.1 Acres Impaired TMDL needed
Sc-017 SCSC-017_L_06 Mid Lake Marion @ Taw Caw Creek Embayment; County: Clarendon Waterbody Map Reservoir 523.4 Acres Impaired TMDL needed
Sc-019 SCSC-019_L_06 Lower Lake Marion @ Potato Creek Flooded Embayment; County: Clarendon Waterbody Map Reservoir 244.3 Acres Good  
Sc-021 SCSC-021_L_06 Lower Lake Marion, 1.5 Km Ne Of Rock'S Pond Campground; County: Orangeburg Waterbody Map Reservoir 1,250.2 Acres Good  
Sc-022 SCSC-022_L_08 County: Berkeley Waterbody Map Reservoir 1,024.1 Acres Not_Assessed  
Sc-023 SCSC-023_L_06 Lower Lake Marion @ Wyboo Creek Flooded Embayment; County: Clarendon Waterbody Map Reservoir 628.0 Acres Not_Assessed  
Sc-036 SCSC-036_L_08 Mid Lake Marion @ The Mouth Of Taw Caw Creek; County: Clarendon Waterbody Map Reservoir 880.1 Acres Impaired TMDL needed
Sc-040 SCSC-040_L_08 Mid Lake Marion @ Channel Marker 79; County: Orangeburg Waterbody Map Reservoir 563.7 Acres Impaired TMDL needed
Sc-041 SCSC-041_L_06 Mid Lake Marion 3.2 Km North Of Channel Marker 79; County: Clarendon Waterbody Map Reservoir 1,261.2 Acres Impaired TMDL needed
Sc-042 SCSC-042_L_06 Mid Lake Marion @ North End Of I-95 / U.S. 301 Bridges; County: Clarendon Waterbody Map Reservoir 1,017.5 Acres Impaired TMDL needed
Sc-057 SCSC-057_S_06 Surface Drainage From Safety Kleen Hazardous Landfill; County: Sumter Waterbody Map Stream 1.0 Miles Good  
Sc-058 SCSC-058_S_06 Stream Originating Upstrm Of Safety Kleen Hazardous Landfill; County: Sumter Waterbody Map Stream 1.0 Miles Impaired TMDL needed
St-018 SCST-018_S_06 Tawcaw Ck At S-14-127 3.2 Mi S Of Summerton (Sc-018); County: Clarendon Waterbody Map Stream 8.4 Miles Impaired TMDL needed
St-024 SCST-024_FISH_L_06 Lake Marion @ Wyboo Creek; County: Clarendon Waterbody Map Freshwater Lake .0 Acres Impaired TMDL needed
St-024 SCST-024_L_06 Lake Marion @ Wyboo Creek; County: Clarendon Waterbody Map Reservoir 840.1 Acres Not_Assessed  
St-025 SCST-025_L_06 Lk Marion At Old Us 301/15 Brdg At Santee (Sc-015); County: Orangeburg Waterbody Map Reservoir 216.0 Acres Impaired TMDL needed
St-027 SCST-027_FISH_L_06 Lake Marion @ Dam; County: Clarendon Waterbody Map Freshwater Lake .0 Acres Impaired TMDL needed
St-035 SCST-035_S_06 Potato Ck At S-14-127 3.2 Mi S Of Summerton (Sc-020); County: Clarendon Waterbody Map Stream 4.6 Miles Impaired TMDL needed
St-036 SCST-036_L_06 Lk Marion, Wyboo Creek Arm Ds Of Clubhouse Br (Sc-023a); County: Clarendon Waterbody Map Reservoir 315.3 Acres Impaired TMDL needed
St-519 SCST-519_FISH_L_06 Lake Marion @ Rimini; County: Clarendon Waterbody Map Freshwater Lake .0 Acres Impaired TMDL needed
St-527 SCST-527_S_06 Tavern Cr. At Sr 808; County: Sumter Waterbody Map Stream 3.6 Miles Good  
St-529 SCST-529_FISH_L_06 Lake Marion @ Low Falls Landing; County: Calhoun Waterbody Map Freshwater Lake .0 Acres Impaired TMDL needed
St-533 SCST-533_S_06 Lyons Creek At Sc 6; County: Calhoun Waterbody Map Stream 2.1 Miles Impaired TMDL needed
St-534 SCST-534_S_06 Halfway Swamp Creek At Sr 157; County: Calhoun Waterbody Map Stream 2.0 Miles Impaired TMDL needed

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Causes of Impairment for Reporting Year 2010

South Carolina, Lake Marion

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.
Cause of Impairment Size of Assessed Waters with Listed Causes of Impairment
Rivers and
Streams (Miles)		 Lakes, Reservoirs,
and Ponds (Acres)
pH   370.2
Chlorophyll-A   12.9
Turbidity   12.9
Zinc   216.0
Fecal Coliform 61.9 12.9
Nickel 1.0  
Phosphorus, Total   7,460.8
Dissolved Oxygen 20.0  
Nitrogen, Total 26.2  
Benthic Macroinvertebrates Bioassessments 7.6  
Mercury   .0

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Probable Sources Contributing to Impairments for Reporting Year 2010

South Carolina, Lake Marion Watershed


No probable sources data have been reported to EPA for this watershed.

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TMDL Alternatives by Cause of Impairment for Reporting Year 2010


South Carolina, Lake Marion Watershed


No TMDL Alternatives reported.

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Cumulative TMDLs by Pollutant

South Carolina, Lake Marion 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.
Pollutant Number of TMDLs Completed Number of Causes of
Impairment Addressed
Fecal Coliform color.gif 7 7

Total: 7 TMDLs; 0 Causes of Impairment



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