Compare vegetation types on your lawn and how much runoff and stormwater discharge is produced.Backyard ConditionsLot Discharge (cubic feet)*Percent Stormwater Discharge Reduction100% Lawn5,2750%50% of Lawn Converted to Native Garden3,90226%25% of Lawn Converted to Tree Cover4,61812.4%50% of Lawn Converted to Native Garden and 25% of Lawn Converted to Tree Cover3,34936.5%*Discharge calculated for