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On This Page 303(d) Listed Waters for 2010

Data are also available for these cycles:
2002 2004 2006 2008

Waterbody Changes from Prior Cycle

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South Carolina Water Quality Assessment Report

Assessed Waters of South Carolina by Watershed

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Display impaired waters and TMDL information only
Features


Site-specific Targeted Monitoring Summary Results

South Carolina (2010)

Description of this table
  Size of Water
Rivers and
Streams (Miles)		 Lakes, Reservoirs,
and Ponds (Acres)		 Bays and
Estuaries
(Square Miles)		 Ocean and
Near Coastal
(Square Miles)
   Good Waters 1,812.5 94,611.0 402.5 2.1
      Previously impaired waters
      now attaining all uses		 193.3 4,879.5 74.2
   Threatened Waters
      TMDL completed                    
      TMDL alternative                    
      Non-pollutant impairment                    
      TMDL needed                    
   Impaired Waters 3,565.9 32,785.8 185.7 1.0
      TMDL completed     1,288.2     181.5     38.1     
      TMDL alternative                    
      Non-pollutant impairment                    
      TMDL needed     2,277.7     32,604.3     147.6     1.0
         New TMDLs completed     10.4     .0     .0     .0
         Remaining TMDLs needed           2,267.2           32,604.3           147.6           1.0
Total Assessed Waters 5,378.4 127,396.8 588.2 3.1
Total Waters 29,794.0 407,505.0 401.0 Unavailable
Percent of Waters Assessed 18.1 31.3 146.7 Unavailable

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2010


Statewide Statistical Survey Summary Results

South Carolina Rivers and Streams 2010

Description of this table
Attainment
Category		 Miles
Fully Supporting 7,041.7
Not Supporting 15,844.7
Total Assessed: 22,886.4
Attainment
Category		 Miles
Fully Supporting 15,106.3
Not Supporting 7,780.1
Total Assessed: 22,886.4
Attainment
Category		 Miles
Fully Supporting 9,559.5
Not Supporting 13,326.9
Total Assessed: 22,886.4

Statewide Statistical Survey Stressors

South Carolina Rivers and Streams 2010

Description of this table
Stressor Miles
Fully Supporting		 Miles
Partially or
Not Supporting		 Total Miles
Cadmium 22,886.4 .0 22,886.4
Lead 22,886.4 .0 22,886.4
Turbidity 22,886.4 .0 22,886.4
Fecal Coliform 9,559.5 13,326.9 22,886.4
Macroinvertebrate 17,634.1 5,252.4 22,886.4
Dissolved Oxygen 21,439.0 1,447.4 22,886.4
Zinc 21,902.7 983.7 22,886.4
pH 22,375.5 510.9 22,886.4
Chromium 22,789.9 96.6 22,886.4
Copper 22,789.9 96.6 22,886.4
Nickel 22,789.9 96.6 22,886.4

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Site-specific Targeted Monitoring Results

South Carolina Rivers and Streams 2010

Description of this table
Assessed Status Miles
Assessed 5,378.4
Unassessed 24,415.6
Total Miles 29,794.0







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Attainment Status Miles
Good 1,812.5
Threatened .0
Impaired 3,565.9
Total Miles Assessed 5,378.4







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TMDL Development Status Miles
All TMDLs completed 1,298.7
TMDL alternative .0
Non-pollutant impairment .0
TMDL needed 2,267.2
Total Threatened and Impaired 3,565.9

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
South Carolina Rivers and Streams 2010

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
Designated Use Miles Assessed Percent Good Percent Threatened Percent Impaired % Good
% Threatened
% Impaired
Aquatic Life Support 5,206.3 65.0 .0 35.0 color.gifcolor.gif
Primary Contact Recreation 4,064.7 38.7 .0 61.3 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
South Carolina Rivers and Streams 2010

Description of this table
Cause of Impairment Cause of Impairment Group Miles
Threatened or
Impaired
Fecal Coliform Pathogens color.gif 2,492.9
Benthic Macroinvertebrates Bioassessments Cause Unknown - Impaired Biota color.gif 898.0
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 529.2
pH pH/Acidity/Caustic Conditions color.gif 186.7
Copper Metals (other than Mercury) color.gif 137.5
Zinc Metals (other than Mercury) color.gif 60.7
Turbidity Turbidity color.gif 60.0
Nitrogen, Total Nutrients color.gif 27.2
Nickel Metals (other than Mercury) color.gif 23.9
Ammonia, Total Ammonia color.gif 21.9
Chromium, Total Metals (other than Mercury) color.gif 10.5

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Site-specific Targeted Monitoring Results

Probable Sources
South Carolina Rivers and Streams 2010

No probable sources of impairments reported.

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Statewide Statistical Survey Summary Results

South Carolina Lakes, Reservoirs, and Ponds 2010

Description of this table
Attainment
Category		 Acres
Fully Supporting 301,133.4
Not Supporting 26,580.9
Total Assessed: 327,714.3
Attainment
Category		 Acres
Fully Supporting 301,133.4
Not Supporting 26,580.9
Total Assessed: 327,714.3
Attainment
Category		 Acres
Fully Supporting 327,714.3
Not Supporting .0
Total Assessed: 327,714.3

Statewide Statistical Survey Stressors

South Carolina Lakes, Reservoirs, and Ponds 2010

Description of this table
Stressor Acres
Fully Supporting		 Acres
Partially or
Not Supporting		 Total Acres
Cadmium 327,714.3 .0 327,714.3
Chromium 327,714.3 .0 327,714.3
Fecal Coliform 327,714.3 .0 327,714.3
Lead 327,714.3 .0 327,714.3
Nickel 327,714.3 .0 327,714.3
Zinc 327,714.3 .0 327,714.3
pH 311,713.4 16,000.8 327,714.3
Phosphorus, Total 317,734.7 9,979.6 327,714.3
Chlorophyll-A 327,145.6 568.7 327,714.3
Dissolved Oxygen 327,314.0 400.3 327,714.3
Turbidity 327,345.8 368.5 327,714.3
Copper 327,545.9 168.3 327,714.3
Total Nitrogen as N 327,618.9 95.4 327,714.3

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Site-specific Targeted Monitoring Results

South Carolina Lakes, Reservoirs, and Ponds 2010

Description of this table
Assessed Status Acres
Assessed 127,396.8
Unassessed 280,108.2
Total Acres 407,505.0







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Attainment Status Acres
Good 94,611.0
Threatened .0
Impaired 32,785.8
Total Acres Assessed 127,396.8







arrow pointing right 		Description of this table
TMDL Development Status Acres
All TMDLs completed 181.5
TMDL alternative .0
Non-pollutant impairment .0
TMDL needed 32,604.3
Total Threatened and Impaired 32,785.8

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
South Carolina Lakes, Reservoirs, and Ponds 2010

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
Designated Use Acres Assessed Percent Good Percent Threatened Percent Impaired % Good
% Threatened
% Impaired
Aquatic Life Support 126,551.0 74.2 .0 25.8 color.gifcolor.gif
Primary Contact Recreation 122,890.1 99.7 .0 .3 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
South Carolina Lakes, Reservoirs, and Ponds 2010

Description of this table
Cause of Impairment Cause of Impairment Group Acres
Threatened or
Impaired
Phosphorus, Total Nutrients color.gif 20,087.0
pH pH/Acidity/Caustic Conditions color.gif 10,661.1
Copper Metals (other than Mercury) color.gif 2,812.4
Ammonia, Total Ammonia color.gif 2,801.4
Chlorophyll-A Algal Growth color.gif 1,491.7
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 1,302.6
Zinc Metals (other than Mercury) color.gif 1,009.4
Nitrogen, Total Nutrients color.gif 820.3
Fecal Coliform Pathogens color.gif 335.5
Turbidity Turbidity color.gif 289.5

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Site-specific Targeted Monitoring Results

Probable Sources
South Carolina Lakes, Reservoirs, and Ponds 2010

No probable sources of impairments reported.

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Statewide Statistical Survey Summary Results

South Carolina Bays and Estuaries 2010

Description of this table
Attainment
Category		 Square Miles
Fully Supporting 243.4
Not Supporting 30.8
Total Assessed: 274.2
Attainment
Category		 Square Miles
Fully Supporting 248.2
Not Supporting 26.0
Total Assessed: 274.2
Attainment
Category		 Square Miles
Fully Supporting 268.9
Not Supporting 5.3
Total Assessed: 274.2

Statewide Statistical Survey Stressors

South Carolina Bays and Estuaries 2010

Description of this table
Stressor Square Miles
Fully Supporting		 Square Miles
Partially or
Not Supporting		 Total Square Miles
Cadmium 274.2 .0 274.2
Chromium 274.2 .0 274.2
Lead 274.2 .0 274.2
Mercury 274.2 .0 274.2
Nickel 274.2 .0 274.2
Zinc 274.2 .0 274.2
pH 274.2 .0 274.2
Turbidity 259.9 14.3 274.2
Fecal Coliform 268.9 5.3 274.2
Ammonia 270.0 4.2 274.2
Dissolved Oxygen 270.0 4.2 274.2
Copper 270.5 3.7 274.2

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Site-specific Targeted Monitoring Results

South Carolina Bays and Estuaries 2010

Description of this table
Assessed Status Square Miles
Assessed 588.2
Unassessed -187.2
Total Square Miles 401.0







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Attainment Status Square Miles
Good 402.5
Threatened .0
Impaired 185.7
Total Square Miles Assessed 588.2







arrow pointing right 		Description of this table
TMDL Development Status Square Miles
All TMDLs completed 38.1
TMDL alternative .0
Non-pollutant impairment .0
TMDL needed 147.6
Total Threatened and Impaired 185.7

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
South Carolina Bays and Estuaries 2010

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
Designated Use Square Miles Assessed Percent Good Percent Threatened Percent Impaired % Good
% Threatened
% Impaired
Aquatic Life Support 116.6 81.6 .0 18.4 color.gifcolor.gif
Primary Contact Recreation 115.3 96.9 .0 3.1 color.gifcolor.gif
Shellfish Harvesting 466.0 65.2 .0 34.8 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
South Carolina Bays and Estuaries 2010

Description of this table
Cause of Impairment Cause of Impairment Group Square Miles
Threatened or
Impaired
Fecal Coliform Pathogens color.gif 165.6
Turbidity Turbidity color.gif 8.4
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 8.1
Ammonia, Total Ammonia color.gif 5.4
Copper Metals (other than Mercury) color.gif 2.5
pH pH/Acidity/Caustic Conditions color.gif .7
Nickel Metals (other than Mercury) color.gif .2
Zinc Metals (other than Mercury) color.gif .2

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Site-specific Targeted Monitoring Results

Probable Sources
South Carolina Bays and Estuaries 2010

No probable sources of impairments reported.

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Site-specific Targeted Monitoring Results

South Carolina Ocean and Near Coastal 2010

Description of this table
Pie chart not displayed because total size for Ocean and Near Coastal is unavailable.
Assessed Status Square Miles
Assessed 3.1
Unassessed Unavailable
Total Square Miles Unavailable







arrow pointing right 		Description of this table
Attainment Status Square Miles
Good 2.1
Threatened .0
Impaired 1.0
Total Square Miles Assessed 3.1







arrow pointing right 		Description of this table
TMDL Development Status Square Miles
All TMDLs completed .0
TMDL alternative .0
Non-pollutant impairment .0
TMDL needed 1.0
Total Threatened and Impaired 1.0

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
South Carolina Ocean and Near Coastal 2010

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
Designated Use Square Miles Assessed Percent Good Percent Threatened Percent Impaired % Good
% Threatened
% Impaired
Primary Contact Recreation 3.1 67.5 .0 32.5 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
South Carolina Ocean and Near Coastal 2010

Description of this table
Cause of Impairment Cause of Impairment Group Square Miles
Threatened or
Impaired
Enterococcus Bacteria Pathogens color.gif 1.0

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Site-specific Targeted Monitoring Results

Probable Sources
South Carolina Ocean and Near Coastal 2010

No probable sources of impairments reported.

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South Carolina Causes of Impairment for Reporting Year 2010


Description of this table
NOTE: Click on the underlined Cause of Impairment Group to see a list of specific state causes of impairment making up the Cause of Impairment Group. See also Pollution categories summary document (PDF) (20 pp, 557K, About PDF) for brief, non-technical descriptions of general cause categories.
Cause of Impairment Group Size of Assessed Waters with Listed Causes of Impairment
Rivers and
Streams (Miles)		 Lakes, Reservoirs,
and Ponds (Acres)		 Bays and
Estuaries
(Square Miles)		 Ocean and
Near Coastal
(Square Miles)
Algal Growth 1,491.7
Ammonia 21.9 2,801.4 5.4
Cause Unknown - Impaired Biota 898.0
Mercury .0 .0 .0
Metals (other than Mercury) 203.1 3,821.8 3.0
Nutrients 27.2 20,087.0
Organic Enrichment/Oxygen Depletion 529.2 1,302.6 8.1
Pathogens 2,492.9 335.5 165.6 1.0
pH/Acidity/Caustic Conditions 186.7 10,661.1 .7
Polychlorinated Biphenyls (PCBs) .0
Turbidity 60.0 289.5 8.4

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South Carolina Probable Sources Contributing to Impairments
for Reporting Year 2010

No probable sources reported.

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South Carolina TMDL Alternatives by Cause of Impairment 2010


No TMDL Alternatives reported.

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South Carolina Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards

Description of this table
NOTE: Click on the underlined "Number of Waters Attaining" value for a detailed list of those previously 303(d)-listed waters now attaining all applicable water quality standards.
Year Attaining Number of Waters Attaining Number of Causes of
Impairment Addressed
2002 color.gif 8 9
2004 color.gif 38 39
2007 color.gif 46 52
2010 color.gif 98 108

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South Carolina Causes of Impairment for 303(d) Listed Waters

Description of this table
NOTE: Click on a cause of impairment (e.g. pathogens) to see the specific state-reported causes that are grouped to make up this category. Click on the "Number of Causes of Impairment Reported" to see a list of waters with that cause of impairment.
Cause of Impairment Group Name Number of Causes of Impairment Reported
Pathogens color.gif 330
Cause Unknown - Impaired Biota color.gif 164
Mercury color.gif 164
Organic Enrichment/Oxygen Depletion color.gif 122
pH/Acidity/Caustic Conditions color.gif 81
Nutrients color.gif 78
Metals (other than Mercury) color.gif 69
Turbidity color.gif 53
Ammonia color.gif 23
Algal Growth color.gif 14
Polychlorinated Biphenyls (PCBs) color.gif 5

Total: 1,103 Causes of Impairment

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South Carolina Cumulative TMDLs by Pollutant

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Pollutant" value to see associated listed waters for which a TMDL was developed. Click on the underlined "Number of TMDLs" value to see a listing of those TMDLs for the pollutant.
Pollutant Number of TMDLs Number of Causes of
Impairment Addressed
Fecal Coliform color.gif 447 453
Biochemical Oxygen Demand (BOD) color.gif 23 23
Dissolved Oxygen color.gif 4 4
Ammonia color.gif 2 2
NH3-N color.gif 2 2
Oxygen Demand color.gif 2 2
pH color.gif 2 2
Chemical Oxygen Demand (COD) color.gif 1 1
Phosphorus color.gif 1 1
Total Suspended Solids (TSS) color.gif 1 1

Total: 485 TMDLs; 491 Causes of Impairment Addressed


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South Carolina Cumulative Number of TMDLs

EPA Fiscal Year starts October 1 and ends September 30.


Description of this table
NOTE: Click on the underlined "Number of TMDLs Completed" value for a detailed list of the TMDLs for the fiscal year.
Fiscal Year Number of TMDLs Number of Causes of
Impairment Addressed
1998 color.gif 4 4
1999 color.gif 20 20
2000 color.gif 1 1
2001 color.gif 15 15
2002 color.gif 14 14
2003 color.gif 16 16
2004 color.gif 172 172
2005 color.gif 135 135
2006 color.gif 25 30
2007 color.gif 6 6
2008 color.gif 4 4
2010 color.gif 29 29
2011 color.gif 22 22
2012 color.gif 16 17
2013 color.gif 6 6

Total: 485 TMDLs; 491 Causes of Impairment Addressed

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