This research will quantify nitrogen and phosphorus concentrations in surface water runoff from residential landscapes being managed under different practices. Ultimately, this research will be used to develop recommendations for maintaining a healthy lawn while minimizing N and P export from urban landscapes. Each of the twelve lawns surveyed will receive one of four different landscape treatments, with three lawns per treatment. These treatments include control lawns receiving normal landscaping, traditional fertilizer lawns with a normal fertilizer management approach, compost lawns receiving a compost top dressing, and biosolid-fertilizer lawns receiving a biosolids-based fertilizer. These different treatments represent alternatives being considered for modification of the Alachua County landscaping code.