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Item Description: Strategic Lake Management Plan -Lake. Owasso <br />Page 2 <br />Goal 3: Assess attainment or non-attainment for current watershed land-use conditions <br />Objectives: <br />• Determine phosphorus loads and yields for selected water year in-three selected sub-watersheds <br />determined to be representative of the land uses in the watershed of the lake. <br />® Relate yields and loads to lake from entire watershed based on model results. <br />• Calculate internal phosphorus loadings through measurement. <br />Goa14: Estimate annual hydrologic and phosphorus budgets. <br />• Use. measured loads and yield data to calibrate model for different land uses <br />• Simulate typical annual hydrologic and. phosphorus budgets with calibrated model for entire <br />watershed <br />• Calibrate model to extent.possible <br />Goa15: Reconcile the budget with observed in-lake .conditions: <br />• Compare model=predicted budgets and predicted in-lake concentrations with <br />measured/observed in-lake conditions <br />Goal 6: Using the lake model, assess likelihood of beneficial use attainment under ultimate <br />watershed land use conditions <br />• Determine load reductions required to meet beneficial goals <br />• Identify options and costs to meet beneficial goals <br />• Determine whether these load reductions are feasible <br />• Determine cost benefit in meeting multiple goals <br />Goa17: If necessary, recommend feasible alternative remedial measures <br />• Determine BMPs (BMPs, as used here, means explicit projects to achieve the reductions) <br />required to meet reduced goals <br />