Sand-based systems are one of the most widely used systems for putting greens due to their resistance to compaction and the infiltration rates that can be achieved. However, the nutrient holding capacity is minimal, often causing applied nutrients to move through the root zone into subsurface drainage. This can lead to a pollution problem known as eutrophication in the wateways surrounding golf courses. Designing and testing materials that can be placed into a filter within the subsurface drainage that will remove these leached nutients from the drainage water are the objectives of this study. These objectives will be met through laboratory testing and greenhouse lysimeter testing. The results of these studies will be discussed.