Per 235-17.B(2), the purpose is to;
Ensure the protection of wetland and waterbody buffer areas from activities that would adversely affect their ability to protect wetlands from degradation to:
(a) Prevent erosion and sedimentation by stabilizing soil.
(b) Moderate the effects of stormwater runoff by filtering sediment, nutrients and harmful or toxic substances, and moderating thermal discharges.
(c) Protect and maintain wildlife habitat.
(d) Support and protect wetland plant species.
(e) Reduce the disturbances to wetland resources caused by intrusion of human activity.