Kevin Carter The Environmental Protection Agency (EPA) has announced its intent to adopt numeric nutrient criteria for Florida’s water bodies (lakes, streams, canals and estuaries). The criterion is unprecedented in the nation and has drawn national attention to Florida’s water quality programs. The panel will discuss the legal genesis of this proposed rule, including the most up to date developments in the state legislature and Congress; its technical aspects, including the scientific basis for the rule; implementation and relief mechanisms; and the criteria’s impact on Florida’s current permitting programs, as well as its impact on a wide variety of stakeholders in Florida.

14. EPA Final Lakes Criteria November 2010 A B C D E F Long Term Average Lake Chlorophyll a f (μg/L) a Baseline Criteria b Modified Criteria (within these bounds) c Color and Alkalinity TP (mg/L) a TN (mg/L) a TP (mg/L) a TN (mg/L) a Colored Lakes > 40 PCU 20 0.050 1.27 0.050-0.16 1.27-2.23 Clear Lakes, Alkaline ≤ 40 PCU d and > 50 mg/L CaCO3 e 20 0.030 1.05 0.030-0.090 1.05-1.91 Clear Lakes, Acidic ≤ 40 PCU d and ≤ 50 mg/L CaCO3 e 6 0.010 0.51 0.010- 0.030 0.51-0.93

15. EPA Rivers and Streams Proposed and Final Criteria Rule has equations in place for downstream protection values for Lakes could potentially lower these criteria Nutrient Watershed Region EPA's Proposed and Final Instream Protection Value Criteria for Rivers and Streams TN (mg/L) Proposed TN (mg/L) FINAL TP (mg/L) Proposed TP (mg/L) FINAL Panhandle 0.824 N/A 0.043 N/A Panhandle West N/A 0.67 N/A 0.06 Panhandle East N/A 1.03 N/A 0.18 North Central 1.479 1.87 0.359 0.3 Bone Valley (now called West Central) 1.798 1.65 0.739 0.49 Peninsula (District waters) 1.205 1.54 0.107 0.12

16. From Presentation by Dr. Dana Thomas USEPA (February 15, 2011) http://www.tetratech-ffx.com/NOLAnutrient_workshop/presentations.htm