Department's proposed revisions to Chapters 62-4, 62-302, and 62-303, Florida Administrative Code.  The department’s proposed revisions are summarized as follows:

Chapter 62-4, F.A.C.:  (1) revise subparagraph 62-4.242(3)(a)2., F.A.C., to delete text related to mixing zones in Outstanding Natural Resource Waters, (2) delete subsection 62-4.242(4), F.A.C., which pertains to equitable abatement, and (3) clarify that the fee in subparagraph 62-4.050(4)(q)1., F.A.C., for Site Specific Alternative Criteria, applies to each application instead of each parameter.

Chapter 62-302, F.A.C.: (1) update a number of references to standard operating procedures for bioassessments, (2) reclassify a number of estuarine waterbodies from Class III to Class II (shellfish propagation or harvesting), (3) replace the un-ionized ammonia (fresh water) with criteria for total ammonia, (4) replace criteria for bacteriological quality (fecal coliform) with criteria for Escherichia coli bacteria (fresh water) and Enterococci bacteria (marine water), (5) establish new water quality criteria for nonylphenol, carbaryl (fresh water only), chlorpyrifos, and diazinon, (6) clarify the methodology for determining lake color and alkalinity when assessing nutrients in lakes, (7) revise the estuarine nutrient region boundaries for Naples Bay and Tampa Bay, (8) clarify the calculation of annual geometric and arithmetic means for nutrients in marine waters, and (9) update several rule references.

Chapter 62-303, F.A.C.: Revisions to Chapter 62-303, F.A.C., are proposed to clarify the assessment methodology for identifying impaired surface waters.  New provisions primarily relate to: (1) the assessment of the concurrently proposed bacteria criteria, (2) the assessment of the recently adopted numeric nutrient criteria, and (3) clarification of the scope of waters on the Study List.  There are some changes to the rule text describing the listing cycle and the delisting requirements for certain parameters, as well as some formatting changes and changes to text related to documents incorporated by reference.

Please let me know if you have any questions or need additional information about the proposed rulemaking.