As Michigan continues to experience record highs and lows of water elevation, the need to accurately define the bathymetry of our lake bottoms and riverbeds is more important than ever. Dredging permits are becoming more common in order for landowners and public entities to maintain safe water depths for recreational and commercial use. We can use the data collected during a survey in conjunction with GIS software to show the location of the dredging and calculate the proposed volume of dredge spoils. This data is vital when applying to EGLE and the Corps for permits.