GIS Aspect We used GIS to extract the watershed basin we were going to focus on so that we could obtain the NLCD landcover data for the catchments the development was going to be in.

Catchments of Interest

The Process Clipped Haw River and New Hope watersheds from a file containing the entire water network for the Southeast U.S. Overlaid NHD water body to locate Jordan Lake Overlaid files for primary, secondary, and local roads to get an exact location Overlaid catchment data Added NHD flowline attributes data table Overlaid NED file for the area to view the elevation of catchments

The Process Joined catchment shapefile with NLCD flowline attributes to get CUMNLCD Used identify function to select catchment of interest and obtain information about landcover Compiled data to get total values

NLCD Classifications 11 Open Water 12 Perennial Ice/Snow 21 Developed, Open Space 22 Developed, Low Density 23 Developed, Medium Density 31 Bare Rock/Sand/Clay 32 Quarries/Strip Mines/Gravel Pits 33 Transitional 41 Deciduous Forest 42 Evergreen Forest 43 Mixed Forest 51 Shrub 61 Orchards/Vineyards/Other 71 Grassland/Herbaceous 81 Pasture/Hay 82 Row Crops 83 Small Grains 84 Fallow 85 Urban/Recreational Grasses 91 Woody Wetlands 92 Emergent Herbaceous Wetlands

Emergent Herbaceous Wetlands COMID 8897386 COMID8897026 NLCD # % of landcover Land Area (km^2) Total Land Area (km^2) 11 Open Water 0.164 0.0053 31 Bare Rock/Sand/Clay 0.036 0.0012 33 Transitional 1.47 0.0474 41 Deciduous Forest 62.04 2 57.44 0.562 2.562 42 Evergreen Forest 21.46 0.692 15.63 0.153 0.845 43 Mixed Forest 12.16 0.392 26.84 0.263 0.655 81 Pasture/Hay 1.44 0.046 82 Row Crops 0.15 0.0048 91 Woody Wetlands 0.96 0.031 0.09 0.00088 0.03188 92 Emergent Herbaceous Wetlands 0.11 0.0035 Total Area: 3.226 0.979 4.202

What’s In Store? How will the nutrient runoff rates be affected if we move the development farther upstream?