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<br /> <br />Bay Area Clean Water Agencies | City of San Leandro Final Report | i <br />Contents <br />To the Reader: An Introduction to Report ...................................................................................................... i <br />Executive Summary ...................................................................................................................................... 1 <br />1 Introduction .......................................................................................................................................... 3 <br />2 Current Conditions .............................................................................................................................. 3 <br />2.1 Existing NPDES Permit ............................................................................................................. 3 <br />2.2 Process Flow Diagram .............................................................................................................. 3 <br />2.3 Existing Flows and Loads.......................................................................................................... 5 <br />2.4 Future Nutrient Removal Projects ............................................................................................. 5 <br />2.5 Pilot Testing ............................................................................................................................... 5 <br />3 Basis of Analysis ................................................................................................................................. 6 <br />3.1 Flow and Loading for Optimization Analysis ............................................................................. 6 <br />3.2 Flow and Loading for Sidestream Treatment ............................................................................ 6 <br />3.3 Flow and Loading for Facility Upgrades .................................................................................... 7 <br />3.4 Basis for Cost Analysis .............................................................................................................. 8 <br />4 Nutrient Load Reduction by Optimization ............................................................................................ 9 <br />5 Sidestream Treatment ....................................................................................................................... 14 <br />6 Nutrient Reduction Upgrades ............................................................................................................ 16 <br />6.1 Plant Upgrades to Meet Level 2 .............................................................................................. 16 <br />6.2 Plant Upgrades to Meet Level 3 .............................................................................................. 17 <br />6.3 Facility Needs to Meet Level 2 and 3 ...................................................................................... 17 <br />6.4 Project Costs for Levels 2 and 3 Upgrades............................................................................. 22 <br />6.5 Ancillary Benefits and Impacts for the Plant Upgrades ........................................................... 23 <br />7 Nutrient Load Reduction by Other Means ......................................................................................... 23 <br />8 Greenhouse Gas Emissions.............................................................................................................. 23 <br />9 Emerging Technologies ..................................................................................................................... 27 <br /> <br />