Amending Title 4 of The Philadelphia Code ("The Philadelphia Building Construction and Occupancy Code"), Subcode "PM" (The Philadelphia Property Maintenance Code), by amending Section PM-304.0 entitled "Exterior Structure" and by amending Section PM-307.0 entitled "Unsafe and Unfit Structures and Equipment" by adding provisions regulating the maintenance and inspection of piers and other waterfront structures, all under certain terms and conditions. — Open Common Ground