Proposed EPA NNC January 14, TN (mg/l) TP (ppb) Chla (ug/l) Canals Peninsula South.

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2 Proposed EPA NNC January 14, 2009 Palm Beach County Canals Peninsula South TN (mg/l) TP (ppb) Chla (ug/l) - 4.0

3 Values exceeding proposed EPA water quality standards TN 1.6 mg/l, TP 42 ppb, chlora 4 ug/l for canals in south region

4 Source Sector Potential Controls Annual Cost (millions per year) Municipal WWTPs Industrial and General Dischargers Biological Nutrient Removal (3 mg/l for TN 100 ppb for TP) Best Management Practices (Source and Process Optimization) $52.9 Urban Storm Water Best Management Practices Not Estimated (NPDES MS4 Permits) (Maximum Extent Practicable) Urban Storm Water (Private) Agriculture Septic Systems Best Management Practices (Maximum Extent Practicable) Nutrient Management, Riparian forest buffers, Livestock fencing Upgrade to Advanced Nutrient Treatment (10.0 mg/l for TN, 5.4 mg/l for TP) $3.0 Not Estimated $36.2 Total >$140.1 Note: There is no documentation that any of these potential controls will meet the proposed nutrient criteria for any of the source sectors identified. $48

5 Total Maximum Daily Load (TMDL) is the maximum amount of a given pollutant that a receiving water can assimilate without exceeding surface water quality standards. TMDL All Point Sources All Nonpoint Sources Margin of Safety

6 Required by Section 303(d) of the Federal Clean Water Act (1972) Florida Watershed Restoration Act (1999) Dfi Defined dh the process for development of fimpaired i water listing and delisting Established rules for TMDL Allocation Process

7 Pollution load reduction goals for both point and nonpoint sources Point sources are regulated through the NPDES permits Nonpoint sources must either implement appropriate BMP s established by the State or conduct water quality monitoring required by the State Failure to implement BMP s or water quality monitoring subject the discharger to enforcement

8 State divided into 5 groups Each group is assessed in 5 Phases with a rotating 5 year cycle Phase 1 Preliminary Evaluation of water quality Phase 2 Strategic Monitoring to verify impairments Phase 3 Adoption of TMDLs for verified impairments Phase 4 Basin Management Action Plan (BMAP) to achieve the TMDL Phase 5 Implementation of the BMAP and monitoring

9 Okeechobee Basin (Cycle 2 Phase 3 completed) Adopted TMDL for Nutrients (annual load of 140 metric tons or 40 ppb) Developed a Lake Okeechobee Protection Plan to fulfill role of a BMAP Established a goal of 2015 to achieve the TMDL

10 January 2010 DEP adopted verified list of impaired water quality parameters Summer DEP to publicize notices on public workshops for draft TMDLs for Group 2 & 3 Fll Fall DEP adoption of TMDL(t (tentative) t ti for DO, Nutrient and Bacteria 2011 DEP and stakeholders BMAP

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12 Municipal Governments must adopt a fertilizer ordinance New and redevelopment projects must reduce nutrients below the pre development amount All existing dischargers must reduce nutrients as specified in the BMAP

13 Purpose Controlling the discharge of nutrients Consistency among Water Management Districts

14 Replaces SFWMD water quality requirements Establishes nutrient (TP and TN) performance standard as the lesser of: 8% 85% reduction of post development loading or Post = Pre-development average annual loading

15 For OFWs and Impaired Waters: Post = Pre Adopted TMDLs or BMAPs supersede the rule Undeveloped lands EMC for TP is 55 pbb compared to proposed EPA NNC for TP of 42 pbb Intends for net reduction of pollutants for urban redevelopment and retrofits

16 Green Roof Rain Harvesting Rain Garden Swale Permeable Pavement Infiltration/Planter All will require maintenance

17 Revised Rule and Applicant Handbook Posted on DEP website March 17 Comments due by June 18 Workshops begin in May Revisions through hmarch 2011

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