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Draft Indian River County Lagoon Management Plan Outline April 2019 2.0 PLAN GOALS AND OBJECTIVES This plan seeks to identify reasonable objectives and measurable goals for actions to Revitalize the IRL. The objectives for this first phase of the plan are more general in nature until the Research can determine scientific - based goals necessary to Revitalize the IRL. The second phase, or first update to the plan, ill occur within three to five years of phase one and will include specific and measurable goals. These goals ill include regulatory requirements for nutrient load allocations, in accordance with the TMDLs and BMAP, •ut'will go further in the evaluation of the legacy loads and ecological damage within the IRL as a result of eutro• ication and other aspects of human interaction. 2.1 RESEARCH Research is needed to identify impacts and strategically target key items for "evitalization of the lagoon. This first phase of the plan focuses heavily on this action, and the Research wil elp to direct the specific goals and objectives of the second phase of the plan. Research topics, goals, and •bjectives'include: • Monitoring and Data Collection Needs: o Phase 1 Objective: Identify existing monitoring nes ork and -survey information in the County's section of the IRL to determine data gaps and s -cific targets for location and type of monitoring needed. Prepare a monitoring plan with clear - to quality objectives and implement the plan. o Phase 2 Objective: Use the available data d additional data gathered through the monitoring plan to identify necessary water quality i • rovement recommendations and associated projects that will provide such improvements. U - the collected data to track the progress and effectiveness of the County's Lagoon ., Ian efforts. • Hydrology and Hydrodynamics: o Phase 1 Objective: Work with the water control and special districts to identify the natural hydroperiod (flow regime) of th lagoon, water management control structures, available models, and effects of enhanced circ ation. o Phase 2 Objective: Provid- models to show effects of modifying the IRL and IRL watershed hydrology and hydrodyn- ics within Indian River County. • Muck: o Phase 1 Objective: aluate existing database information to identify the location, areal coverage, and nutr -nt flux rates for muck in Indian River County. Evaluate if there are important data gaps that m be filled with additional surveys. o Phase 2 Objec dredging and/ mitigation pr • Biodiversity: o Phase 1 •bjective: Identify current and historical populations and population trends for native and non-na ve species, including fisheries, through land use mapping. Assess trends in the natural com nity structure and coverage. o Phase 2 Objective: Prepare and implement a plan for habitat management strategies to create an Revitalize habitat, and evaluate success through population, coverage, and emergence of native species. e: Prepare a cost/benefit assessment and prioritization schedule for the r capping of muck deposits to evaluate the need and efficiency of future muck jects. OTETRA TECH 5