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Table of Contents Near-Field Methodology...........................................................................................................30 <br /> Near-Field Impacts Calculations...........................................................................................31 <br /> Acknowledgements........................................................................................................................i <br /> Near-Field Analysis and Results...........................................................................................33 <br /> Tableof Contents.........................................................................................................................iii <br /> Biochemical Oxygen Demand(BOD)..............................................................................34 <br /> List of Tables.................................................................................................................................v <br /> Total Suspended Solids(TSS)..........................................................................................36 <br /> Listof Figures.............................................................................................................................viii <br /> Aluminum.........................................................................................................................38 <br /> ExecutiveSummary................................................................................................................ES-I <br /> Electrical Conductivity.....................................................................................................41 <br /> Water Quality Impacts of an Increase in Permitted Capacity................................................ES-I <br /> Ammonia...........................................................................................................................44 <br /> Costs and Benefits of Alternatives for Maintaining Existing Water Quality.......................ES-II <br /> Arsenic..............................................................................................................................47 <br /> Proposed Project and Additional Measures........................................................................ES-III <br /> Copper...............................................................................................................................49 <br /> Consistency with Antidegradation Policies........................................................................ES-IV <br /> Cyanide.............................................................................................................................51 <br /> Introduction...................................................................................................................................1 <br /> Iron....................................................................................................................................53 <br /> Project Location and Background...............................................................................................1 <br /> Manganese........................................................................................................................55 <br /> ProjectDescription......................................................................................................................2 <br /> Methylene Blue Active Substances(MBAS)...................................................................57 <br /> Purposeof Report.......................................................................................................................2 <br /> Nitrate...............................................................................................................................59 <br /> Approachto Analysis..................................................................................................................2 <br /> Regulatory Requirements............................................................................................................5 <br /> Mercury.............................................................................................................................63 <br /> Federal and State Antidegradation Policies................................................................................5 <br /> Temperature......................................................................................................................65 <br /> State Guidance on NPDES Permitting and Antidegradation......................................................5 <br /> Far-Field Methodology.............................................................................................................71 <br /> Applicable Water Quality Standards..........................................................................................7 <br /> Far-Field Analysis and Results.............................................................................................71 <br /> BeneficialUses...........................................................................................................................7 <br /> Water Quality Objectives/Water Quality Criteria.......................................................................8 Dissolved Oxygen.............................................................................................................71 <br /> Manteca WQCF Effluent Contribution to Far-Field Delta Locations..............................79 <br /> 303(D)Listings.........................................................................................................................10 <br /> Far-Field Water Quality Parameters.................................................................................89 <br /> NPDES Permit Requirements...................................................................................................11 <br /> Summary of Water Quality Impacts.........................................................................................96 <br /> Environmental Setting................................................................................................................15 <br /> Assessment of Socio-Economic Considerations.......................................................................99 <br /> Sacramento-San Joaquin Delta and San Joaquin River Basin..................................................15 <br /> Costs and Benefits of Alternatives for Maintaining Existing Water Quality...........................99 <br /> San Joaquin River Basin Hydrology.........................................................................................17 <br /> Effluent-to-Land Disposal..................................................................................................100 <br /> LandUse...................................................................................................................................18 <br /> Costs................................................................................................................................101 <br /> Assessment of Water Quality Impacts......................................................................................19 <br /> Benefits...........................................................................................................................101 <br /> Selection of Water Quality Constituents...................................................................................23 <br /> PotentialImpacts.............................................................................................................102 <br /> DataSources.....................................................................................................................25 <br /> Compliance with Laws and Regulations.........................................................................102 <br /> DataQuality Screening.....................................................................................................26 <br /> Microfiltration and Reverse Osmosis.................................................................................102 <br /> Water Year Hydrologic Classification..............................................................................27 <br /> Costs................................................................................................................................103 <br /> City of Manteca Antidegradation Analysis 111 June 2007 City of Manteca Antidegradation Analysis iv June 2007 <br />