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Organic amendments such as composts and mulches have been shown to improve soil quality and reduce the impacts of stormwater runoff and soil erosion. Previous studies using rainfall simulators have documented that runoff volumes and soil erosion can be significantly reduced when organic materials are added to the soil profile. The objectives of this study are to measure the changes in runoff and soil erosion under natural rainfall conditions in Georgia over a five year period and to determine the changes in soil carbon levels over time. Natural runoff plots were established to look at controls of bare soil and grass and treatments of a surface applied compost blanket of 5 cm, a surface treatment of 5 cm of ground wood mulch, the same amount of compost incorporated into the upper 15 cm of soil and an incorporated biochar treatment. This report presents a summary of the first year of data.