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Assessment Data for the State of South Carolina Year 2002

National Assessment Database
About this Database

Assessing Water Quality (Questions and Answers)

National Water Quality Inventory Report to Congress, 2002 Reporting Cycle

The 2002 National Assessment
Database
(Fact Sheet)

Previous National Water Quality Reports

EnviroMapper for Water

Impaired Water Information
2002 303(d) List Report

Other Water Assessment Information
The most current report available for this state is 2008.
Data are also available for these years: 2004 2006



State of South Carolina websites:

State 305(b) Water Quality Assessment Report(s)
  State Water Quality Program

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Total Assessed Waters for the State of South Carolina

Description of this table

Size Of Water
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Water (Square Miles)
Total Assessed Waters 15,386.07 308,838.52 221.11 .00 .00 .00 .00 .00
Estimated Total Water Size in SC 29,794.00 407,505.00 401.00 Unavailable Unavailable Unavailable Unavailable Unavailable
Percent of Waters Assessed 51.64 75.79 55.14 Unavailable Unavailable Unavailable Unavailable Unavailable

Assessed Waters of South Carolina by Watershed

Description of this table
Watershed Size of Water
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Water (Square Miles)
BLACK 1,779.73 .00 1.00 .00 .00 .00 .00 .00
BROAD-ST. HELENA 319.89 185.32 132.80 .00 .00 .00 .00 .00
CAROLINA COASTAL-SAMPIT 31.61 .00 8.61 .00 .00 .00 .00 .00
CONGAREE 414.23 167.51 .00 .00 .00 .00 .00 .00
COOPER 212.44 52,255.16 16.88 .00 .00 .00 .00 .00
EDISTO 447.46 .00 25.46 .00 .00 .00 .00 .00
ENOREE 277.88 77.25 .00 .00 .00 .00 .00 .00
FOUR HOLE SWAMP 582.19 .00 .00 .00 .00 .00 .00 .00
LAKE MARION 160.95 86,823.35 .00 .00 .00 .00 .00 .00
LITTLE PEE DEE 755.73 .00 .00 .00 .00 .00 .00 .00
LOWER BROAD 270.76 8,260.52 .00 .00 .00 .00 .00 .00
LOWER CATAWBA 759.54 3,237.89 .00 .00 .00 .00 .00 .00
LOWER PEE DEE 1,407.83 2,336.32 6.69 .00 .00 .00 .00 .00
LOWER SAVANNAH 86.93 .00 3.70 .00 .00 .00 .00 .00
LUMBER 41.98 .00 .00 .00 .00 .00 .00 .00
LYNCHES 1,456.21 .00 .00 .00 .00 .00 .00 .00
MIDDLE SAVANNAH 218.09 .00 .00 .00 .00 .00 .00 .00
NORTH FORK EDISTO 554.07 .00 .00 .00 .00 .00 .00 .00
SALKEHATCHIE 299.87 121.56 .00 .00 .00 .00 .00 .00
SALUDA 1,627.68 60,341.97 .00 .00 .00 .00 .00 .00
SANTEE 230.24 .00 1.77 .00 .00 .00 .00 .00
SENECA 236.60 35,252.78 .00 .00 .00 .00 .00 .00
SOUTH CAROLINA COASTAL 112.21 .00 38.81 .00 .00 .00 .00 .00
SOUTH FORK EDISTO 821.99 .00 .00 .00 .00 .00 .00 .00
STEVENS 170.49 .00 .00 .00 .00 .00 .00 .00
TUGALOO 104.91 11,859.38 .00 .00 .00 .00 .00 .00
TYGER 260.53 515.30 .00 .00 .00 .00 .00 .00
UPPER BROAD 365.21 2,521.39 .00 .00 .00 .00 .00 .00
UPPER CATAWBA 47.27 3,788.98 .00 .00 .00 .00 .00 .00
UPPER SAVANNAH 224.95 29,899.91 .00 .00 .00 .00 .00 .00
WACCAMAW 449.50 .00 .00 .00 .00 .00 .00 .00
WATEREE 825.14 11,193.96 .00 .00 .00 .00 .00 .00


South Carolina Assessed Waters
Individual Use Support for Rivers and Streams

Description of this table
State Designated Use Total Miles Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 15,373.27 79.38 .00 20.62 color.gifcolor.gif
Recreation Recreation 14,707.50 58.42 .00 41.58 color.gifcolor.gif
Public Water Supply Public Water Supply 15,386.07 99.99 .00 .01 color.gifcolor.gif
The state assessed 15,386.07 miles of rivers and streams, or 51.64% of 29,794.00 total miles.

South Carolina Assessed Waters
Water Quality Attainment for Rivers and Streams

Description of this table
Attainment Status Miles Percent of Assessed
Good 7,345.01 47.74
Threatened .00 .00
Impaired 8,041.05 52.26
Total Miles Assessed 15,386.07 100.00

South Carolina Top Causes of Impairments
for Rivers and Streams

Description of this table
# State Cause Name Total
Miles
Impaired
1 PATHOGENS 6,115.48
2 ORGANIC ENRICHMENT/LOW DO 2,040.53
3 METALS 376.14
4 PH 373.20
5 TURBIDITY 214.26
6 CAUSE UNKNOWN 135.69

South Carolina Top Probable Sources of Impairments
for Rivers and Streams

Description of this table
# State Source Name Total Miles Impaired by Source
1 SOURCE UNKNOWN 4,708.56
2 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 2,238.23
3 AGRICULTURE 614.78
4 MUNICIPAL POINT SOURCE DISCHARGES 563.64
5 LIVESTOCK (GRAZING OR FEEDING OPERATIONS) 420.73
6 NATURAL SOURCES 362.87
7 SANITARY SEWER OVERFLOWS (COLLECTION SYSTEM FAILURES) 268.06
8 INTENSIVE ANIMAL FEEDING OPERATIONS 233.92
9 LAND DISPOSAL 166.18
10 INDUSTRIAL POINT SOURCE DISCHARGE 118.46

South Carolina Assessed Waters
Individual Use Support for Lakes, Ponds and Reservoirs

Description of this table
State Designated Use Total Acres Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 308,838.52 83.51 .00 16.49 color.gifcolor.gif
Recreation Recreation 308,838.52 98.79 .00 1.21 color.gifcolor.gif
Public Water Supply Public Water Supply 308,838.52 100.00 .00 .00 color.gif
The state assessed 308,838.52 acres of lakes, ponds and reservoirs, or 75.79% of 407,505.00 total acres.

South Carolina Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs

Description of this table
Attainment Status Acres Percent of Assessed
Good 257,614.22 83.41
Threatened .00 .00
Impaired 51,224.30 16.59
Total Acres Assessed 308,838.52 100.00

South Carolina Top Causes of Impairments
for Lakes, Ponds and Reservoirs

Description of this table
# State Cause Name Total
Acres
Impaired
1 NUTRIENTS 39,002.77
2 PH 31,472.41
3 ORGANIC ENRICHMENT/LOW DO 11,651.56
4 PATHOGENS 3,729.41
5 SUSPENDED ALGAE 1,072.08
6 METALS 132.33

South Carolina Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs

Description of this table
# State Source Name Total Acres Impaired by Source
1 SOURCE UNKNOWN 43,856.99
2 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 18,229.74
3 MUNICIPAL POINT SOURCE DISCHARGES 18,225.49
4 AGRICULTURE 18,225.49
5 INDUSTRIAL POINT SOURCE DISCHARGE 14,534.09
6 CHANGES IN ORDINARY STRATIFICATION AND BOTTOM WATER HYPOXIA/ANOXIA 2,020.41
7 LAND DISPOSAL 32.27
8 SANITARY SEWER OVERFLOWS (COLLECTION SYSTEM FAILURES) 32.27
9 HYDROMODIFICATION 21.76

South Carolina Assessed Waters
Individual Use Support for Bays and Estuaries

Description of this table
State Designated Use Total Square Miles Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 221.11 81.36 .00 18.64 color.gifcolor.gif
Recreation Recreation 221.11 93.35 .00 6.65 color.gifcolor.gif
The state assessed 221.11 square miles of bays and estuaries, or 55.14% of 401.00 total square miles.

South Carolina Assessed Waters
Water Quality Attainment for Bays and Estuaries

Description of this table
Attainment Status Square Miles Percent of Assessed
Good 171.42 77.53
Threatened .00 .00
Impaired 49.69 22.47
Total Square Miles Assessed 221.11 100.00

South Carolina Top Causes of Impairments
for Bays and Estuaries

Description of this table
# State Cause Name Total
Square Miles
Impaired
1 ORGANIC ENRICHMENT/LOW DO 36.50
2 PATHOGENS 14.71
3 TURBIDITY 7.05
4 METALS 4.08
5 PH 1.87

South Carolina Top Probable Sources of Impairments
for Bays and Estuaries

Description of this table
# State Source Name Total Square Miles Impaired by Source
1 NATURAL SOURCES 16.57
2 SOURCE UNKNOWN 13.96
3 INDUSTRIAL POINT SOURCE DISCHARGE 13.92
4 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 4.63
5 LAND DISPOSAL 1.56
6 MUNICIPAL POINT SOURCE DISCHARGES .54
7 INTENSIVE ANIMAL FEEDING OPERATIONS .14
8 SANITARY SEWER OVERFLOWS (COLLECTION SYSTEM FAILURES) .06
9 HABITAT MODIFICATION (OTHER THAN HYDROMODIFICATION) .06

South Carolina

Causes of Impairment

Description of this table
State Cause Name Size of Assessed Waters with Listed Causes of Impairment
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Waters (Squar Miles)
CAUSE UNKNOWN 135.69 .00 .00 .00 .00 .00 .00 .00
METALS 376.14 132.33 4.08 .00 .00 .00 .00 .00
PATHOGENS 6,115.48 3,729.41 14.71 .00 .00 .00 .00 .00
SUSPENDED ALGAE .00 1,072.08 .00 .00 .00 .00 .00 .00
ORGANIC ENRICHMENT/LOW DO 2,040.53 11,651.56 36.50 .00 .00 .00 .00 .00
NUTRIENTS .00 39,002.77 .00 .00 .00 .00 .00 .00
PH 373.20 31,472.41 1.87 .00 .00 .00 .00 .00
TURBIDITY 214.26 .00 7.05 .00 .00 .00 .00 .00

South Carolina

Probable Sources Contributing to Impairment

Description of this table
State Source Name Size of Assessed Waters with Probable Sources of Impairment
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Waters (Square Miles)
LAND DISPOSAL 166.18 32.27 1.56 .00 .00 .00 .00 .00
RESOURCE EXTRACTION 23.48 .00 .00 .00 .00 .00 .00 .00
HABITAT MODIFICATION (OTHER THAN HYDROMODIFICATION) .00 .00 .06 .00 .00 .00 .00 .00
SANITARY SEWER OVERFLOWS (COLLECTION SYSTEM FAILURES) 268.06 32.27 .06 .00 .00 .00 .00 .00
RECREATION AND TOURISM ACTIVITIES (OTHER THAN BOATING - SEE 7900) 4.06 .00 .00 .00 .00 .00 .00 .00
CONSTRUCTION 83.33 .00 .00 .00 .00 .00 .00 .00
INTENSIVE ANIMAL FEEDING OPERATIONS 233.92 .00 .14 .00 .00 .00 .00 .00
MUNICIPAL (URBANIZED HIGH DENSITY AREA) 2,238.23 18,229.74 4.63 .00 .00 .00 .00 .00
AGRICULTURE 614.78 18,225.49 .00 .00 .00 .00 .00 .00
CHANGES IN ORDINARY STRATIFICATION AND BOTTOM WATER HYPOXIA/ANOXIA .00 2,020.41 .00 .00 .00 .00 .00 .00
NATURAL SOURCES 362.87 .00 16.57 .00 .00 .00 .00 .00
MUNICIPAL POINT SOURCE DISCHARGES 563.64 18,225.49 .54 .00 .00 .00 .00 .00
HISTORIC BOTTOM DEPOSITS (NOT SEDIMENT) 8.40 .00 .00 .00 .00 .00 .00 .00
LIVESTOCK (GRAZING OR FEEDING OPERATIONS) 420.73 .00 .00 .00 .00 .00 .00 .00
SOURCE UNKNOWN 4,708.56 43,856.99 13.96 .00 .00 .00 .00 .00
HYDROMODIFICATION 35.55 21.76 .00 .00 .00 .00 .00 .00
GROUNDWATER LOADINGS 10.43 .00 .00 .00 .00 .00 .00 .00
INDUSTRIAL POINT SOURCE DISCHARGE 118.46 14,534.09 13.92 .00 .00 .00 .00 .00

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