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engineering p c <br /> HORIZON ELEMENTARY SCHOOL <br /> CLASSROOM PORTABLE INSTALLATION <br /> STORM DRAINAGE REPORT <br /> TABLE OF CONTENTS <br /> PROJECT OVERVIEW I <br /> Existing Conditions <br /> MINIMUM REQUIREMENTS 2 <br /> Minimum Requirement#1 —Preparation of Stormwater Site Plans(MRI) 4 <br /> Minimum Requirement#2—Construction Stormwater Pollution Prevention Plan(SWPPP) (MR2) 4 <br /> Minimum Requirement#3—Source Control of Pollution(MR3) 4 <br /> Minimum Requirement#4—Preservation of Natural Drainage Systems and Outfalls(MR4) 4 <br /> Minimum Requirement#5—On-Site Stormwater Management(MR5) 4 <br /> OFFSITE ANALYSIS 4 <br /> PERMANENT STORMWATER CONTROL PLAN 5 <br /> Pre-developed Site Hydrology 5 <br /> Proposed Site Hydrology 5 <br /> Conveyance System Analysis and Design 6 <br /> CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN (SWPPP) 8 <br /> FIGURES 9 <br /> APPENDIX A I0 <br /> APPENDIX B I I <br /> APPENDIX C 12 <br /> APPENDIX D 13 <br /> FIGURES <br /> Figure I: Vicinity Map <br /> Figure 2: Soils Map <br /> Figure 3: Existing Impervious Coverage <br /> Figure 4: Proposed Conditions <br /> Figure 5: Downstream Drainage Map <br /> APPENDICES <br /> Appendix A Design Drawings <br /> Appendix B—Design Calculations and Supporting Information <br /> Appendix C—Preliminary Construction Stormwater Pollution Prevention Plan (CSWPPP) <br /> Appendix D—Operations and Maintenance Manual <br />