DHEC divides South Carolina into 8 major river basins or watersheds. Together, these watersheds contain over 30,000 stream miles, 300,000 acres of lake water and 200,000 acres of estuary.
For each of the 8 basins, DHEC produces a Watershed Water Quality Assessment (WWQA) that describes a wealth of information through text and maps including: water chemistry, biological monitoring, physical characteristics, natural resources, growth potential, potential nonpoint source contributions and point source discharges.
Click on a watershed to learn more about water quality in that basin.
Did you know? The Edisto River in South Carolina is the longest free-flowing (undammed) blackwater river in North America.
Bureau of Water . Phone: (803) 898-4300 . Fax: (803) 898-3795 . Contact Us