Cleanest/Best Watersheds

National Average

Dirtiest/Worst Watersheds

0%					50%					100%

Percentage of Surface Waters with Impaired or Threatened Uses (state + EPA data):

Number of Impaired Waterbodies (as reported by the state):

NOTE: Data limitations affect the accuracy of these rankings.

Rank watersheds by assessed use impairments
Rank counties by assessed use impairments.
Rank states by assessed use impairments, impairments due to specific causes, or impairments due to specific sources

Four Hole Swamp contains a portion of 4 counties:

BERKELEY County, SC

CALHOUN County, SC

DORCHESTER County, SC

ORANGEBURG County, SC

Percentage of Surface Waters with Reported Problems (state + EPA data): 100%

Number of Waterbodies with Reported Problems (as reported by the state): 8

Cow Castle Ck At S-38-170

Dean Swamp At Us 176

Four Hole Swamp Drainage

Four Hole Swp At S-38-50 5.2 Mi Se Of Cameron

Gramling Ck At Clvt On Sc 33 2 Mi E Of Orangeburg

Horse Range Swamp At Us 176

Little Bull Creek At Sc 33

Providence Swp At E Frontage Rd To I-95 Nw Of Holly Hill

Beneficial Use Most Frequently Impaired	Percent of All Impairments
Primary Contact Recreation (Swimming)	88%
Fish Consumption	12%

Priority for Regulation	Number of Waterbodies
Targeted	0
High	0
Medium	6
Low	2
Not Assessed for TMDL Priority	0
Not Reported to US EPA for TMDL Priority	0

Rivers, Streams, and Creeks
Number of impaired waterbodies: 3
Percent of Rivers, Streams and Creeks in SOUTH CAROLINA assessed by agencies for 1997-98 reporting period: 65%

	Percent Waterbodies Affected
Pathogens	100%

NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.

Rivers, Streams, and Creeks
Number of impaired waterbodies: 3(cause not reported for 100%)
Percent of Rivers, Streams and Creeks in SOUTH CAROLINA assessed by agencies for 1997-98 reporting period: 65%

	Percent Waterbodies Affected
Impairment source not reported	100%

NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.

U.S. EPA Watershed Health Index

U.S. EPA Condition and Vulnerability Indicators

U.S. EPA Watershed Profile

U.S. Geological Survey: Water Resources Links

USGS report on the National Water-Quality Assessment (NAWQA) study unit this watershed is in.