Surface Runoff Parking lots, roads and buildings create hard surfaces that prevent infiltration and increase surface runoff. Water has nowhere to go and brings everything with it including pollution on the surface. Pollution sources from surface runoff includes: * Soil that washes off construction sites * Trash and litter * Fluids and oils from vehicles * Fertilizers and pesticides from lawns and farm fields * Nutrients from agricultural waste * Salt from roadways One branch of the Susquehanna River is clear while the other is affected by surface runoff. Precipitation BUILDINGS VEHICLES CONSTRUCTION SITES FERTILIZERS AND PESTICIDES Surface Runoff HOMES TRASH AGRICULTURAL WASTE