The proposed St. Marks shellfish harvesting area will consist of a 4,111 acre Conditionally Approved area and a 5,264 acre Prohibited area. Proposed management of the St. Marks shellfish harvesting area is based on local rainfall and river discharge. The average closure frequency of the St. Marks Conditionally Approved area is expected to be 6.6 days per month. A sanitary survey has been conducted that evaluated current information on pollution sources and bacteriological water quality, and recommends classification of the St. Marks shellfish harvesting area. This amendment places descriptions, references to shellfish harvesting area map numbers and operating criteria for the St. Marks shellfish harvesting area #23 in the document Shellfish Harvesting Area Classification Boundaries and Management Plans. These documents are hereby incorporated in subsection 5L-1.003(1), F.A.C. Additionally, this amendment provides illustrations of the St. Marks shellfish harvesting area classification boundaries in the shellfish harvesting area map #23. This map is hereby incorporated by reference in subsection 5L-1.003(1), F.A.C.