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INTERWEST — EVERETT CONTRACTOR'S YARD INTERIM FILL PROJECT Sitts & Hill Engineers, Inc. <br />CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN Job Number 17,733 <br />TABLE OF CONTENTS <br />Section1 — Project Description.................................................................................................................. 3 <br />Section 2 — Existing Site Conditions.......................................................................................................... 5 <br />Section3 — Adjacent Areas.......................................................................................................................10 <br />Section4 — Critical Areas..........................................................................................................................11 <br />Section5 — Soil...........................................................................................................................................13 <br />Section 6 — Potential Erosion Problem Areas........................................................................................14 <br />Section 7 — Construction Stormwater Pollution Prevention Elements................................................15 <br />Element 1- Preserve Vegetation/Mark Clearing Limits......................................................................15 <br />Element 2- Establish Construction Access..........................................................................................15 <br />Element 3- Control Flow Rates.............................................................................................................15 <br />Element 4- Install Sediment Controls...................................................................................................16 <br />Element5- Stabilize Soils...................................................................................................................... 16 <br />Element6- Protect Slopes.....................................................................................................................16 <br />Element 7- Protect Drain Inlets.............................................................................................................16 <br />Element 8- Stabilize Channels and Outlets.........................................................................................16 <br />Element 9- Control Pollutants................................................................................................................17 <br />Element 10- Control De-Watering.........................................................................................................17 <br />Element 11- Maintain BMPs <br />18 <br />Element12- Manage the Project..........................................................................................................18 <br />Element 13- Protect Low Impact Development BMPs......................................................................18 <br />Section 8 — Construction Schedule and Phasing.................................................................................. 20 <br />Section 9 — Financial / Ownership Responsibilities............................................................................... 21 <br />Section 10 — Engineering Calculations.................................................................................................... 22 <br />AppendixA — Applicable BMPs................................................................................................................ 24 <br />Appendix B — Geotechnical Report .......................................................................................................... 82 <br />Appendix C - Fill Material Sieve Analysis............................................................................................157 <br />SITTS & HILL ENGINEERS, INC. 2 <br />TACOMA, WASHINGTON <br />