Cleanest/Best Counties

National Average

Dirtiest/Worst Counties

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 counties in SOUTH CAROLINA or in the U.S. by assessed use impairments.
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WILLIAMSBURG County contains a portion of 3 watersheds:

Black

Lynches

Santee

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

Number of Waterbodies with Reported Problems (as reported by the state): 47

Beneficial Use Most Frequently Impaired	Percent of All Impairments
Primary Contact Recreation (Swimming)	43%
Shellfish Consumption	28%
Aquatic Life Support	23%
Fish Consumption	6%

Priority for Regulation	Number of Waterbodies
Targeted	0
High	2
Medium	37
Low	8
Not Assessed for TMDL Priority	0
Not Reported to US EPA for TMDL Priority	0

Rivers, Streams, and Creeks
Number of impaired waterbodies: 36
Percent of Rivers, Streams and Creeks in SOUTH CAROLINA assessed by agencies for 1997-98 reporting period: 65%

	Percent Waterbodies Affected
Pathogens	61%
Impaired Biological Community	19%
Metals	11%
Mercury	8%
pH	6%
More...

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

Rivers, Streams, and Creeks
Number of impaired waterbodies: 36 (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.

Scorecard's report on

• Watershed indicators
• Toxic chemical releases from industrial facilities (TRI)
• Criteria air pollutants
• Hazardous air pollutants
• Land contamination

Drinking Water Sources for this County