Determining if a permit is required

1. The impounding capacity of a dam is calculated based upon the elevation at the top of dam. Storage below the existing adjacent ground surface is generally excluded from the capacity of a holding pond, lagoon, or dugout. 2. The area protected by a dike is calculated based upon the area protected as measured from the effective top of dike. 3. The diverting capacity of a diversion is calculated based upon the runoff from the National Oceanic and Atmospheric Administration Atlas 14 twenty-five year, twenty-four hour, precipitation event. 4. No construction can begin until a construction permit is obtained.