What does my yard have to do with clean streams?

If lawns were classified as a crop, turf would rank the fifth largest in the country based on acreage. The shear amount of lawns, coupled with how we use them impacts creeks due to runoff. Homeowners use ten times more chemicals per acre than farmers – 67,000,000 lbs. of synthetic pesticides are used on U.S. lawns. In addition, 30-60% of urban fresh water is used for watering lawns. (Source: Borman et al. Redesigning the American Lawn, 2001)