The Department is initiating its Triennial Review of state surface water quality standards as required by the Federal Clean Water Act. Proposed revisions to a number of rules in both Chapters 62-302 and 62-303, Florida Administrative Code (F.A.C.), are under consideration, but all surface water quality standards, including those within other F.A.C chapters, are part of the Triennial Review and are subject to possible revision. Proposed amendments within Chapter 62-302, F.A.C., include: (1) establishment of biological health criteria, (2) revision of human health-based water quality criteria, (3) establishment of criteria for un-ionized ammonia in marine waters, (4) revision of criteria for specific conductance, (5) listing of all site specific alternative criteria in Rule 62-302.800, F.A.C., (6) revision of criteria for transparency, (7) revisions of definitions for Predominantly Fresh Waters and Predominantly Marine Waters, (8) clarification of the upstream extent of Class II waters, and (9) establishment of numeric nitrate criteria for spring vents and boils.