Swimming in a Sea of Asphalt Stormwater Management in Greenville County May 30 th, 2007 C. Brannon Andersen, Gregory P. Lewis, Weston Dripps, Suresh Muthukrishnan

Furman University

Land Cover in the Enoree River Basin Muthukrishnan et al (2007)

temperature turbidity HYDROSPHERE surface, soil, ground chemistry flow WATERSHED INTEGRITY waste air pollution riparian zone damage habitat loss HUMANS impervious surfaces runoff flooding scouring channelization fishes amphibians BIOSPHERE microbes plants/algae inverts bedrock soil LITHOSPHERE microbes plant roots dust gases ATMOSPHERE rainfall volume chemistry

Urbanization and Stream Discharge

Hydrology ImperviousnessForested ET = 40% DI = 25% SI = 25% RO = 10% 35-50% ET = 35% DI = 20% SI = 20% RO = 30% % ET = 30% DI = 5% SI = 10% RO = 55%

Floods Flooding Frequency and Intensity Time Discharge Rain Base Flow Storm Flow Rain Time Discharge Base Flow Storm Flow

BY33

Urbanized headwaters: Mountain Creek, Brushy Creek and Rocky Creek Watersheds

Land Cover in the Enoree River Basin Muthukrishnan et al (2007)

Mountain Creek Watershed Land Cover Map Mountain Creek

Mountain Creek Watershed Imperviousness Map

Brushy Creek Land Cover

Brushy Creek Impervious Surface

Rocky Creek Landcover

Rocky Creek Urbanization

Urbanization and Water Quality

Brushy Creek Water Quality

r 2 = 0.75 Water Quality andUrbanization r 2 = 0.75 r 2 = 0.81