All uses within the Shallow Flooding District shall be permitted to the extent that they are not prohibited by any other ordinance (or underlying zoning district) and provided they meet the applicable performance standards of the Shallow Flooding District. The performance standards for the Shallow Flooding District shall be the same as the performance standards for the Floodway Fringe District with the following exceptions:
1. In shallow flooding areas designated as an AO Zone on the Flood Insurance Rate Map, the minimum floodproofing/flood protection elevation shall be equal to the number of feet as specified on the Flood Insurance Rate Map (or a minimum of 2.0 feet if no number is specified) above the highest natural grade adjacent to the structure.
2. In shallow flooding areas designated as an AH Zone on the Flood Insurance Rate Map, the minimum floodproofing/flood protection elevation shall be equal to the elevation as specified on the Flood Insurance Rate Map.