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STATIC TEST FACILITY PRELIMINARY STORM DRAINAGE REPORT <br /> EVERETT,WASHINGTON <br /> SECTION 8: CSWPPP ANALYSIS AND DESIGN <br /> Design of the ESC plan was completed in conformance with Minimum Requirement#2 per <br /> the the latest 2010 City of Everett Stormwater Management Manual (SMM) and the <br /> Washington State Department of Ecology's Stormwater Management Manual for Western <br /> Washington, February 2005 Edition (DOE Manual). Compliance with the 9 minimum <br /> requirements is summarized below. <br /> 1. Clearing Limits: Clearing limits have been delineated on sheet X of the civil plans. <br /> The clearing limits extend only to those areas that will be disturbed during <br /> construction of the subject project. <br /> 2. Cover Measures: The Erosion/Sedimentation Control Notes listed on sheet X of the <br /> civil plans specify specific times at which temporary and permanent cover measures <br /> will be installed. <br /> 3. Perimeter Protection: Per sheet X of the civil plans, silt fence will be used for <br /> perimeter protection. Silt fence will be installed along the perimeters of those areas <br /> that will be receiving silt-laden runoff. <br /> 4. Traffic Area Stabilization: A construction entrance will be installed at the entrance <br /> to the project site. See sheets X and X for location of construction entrance and detail. <br /> 5. Sediment Retention: The proposed sediment trap will be used for sediment retention. <br /> Sediment retention will be designed per the DOE Manual. <br /> Surface Area: <br /> Q1 =Developed 10- year runoff event=4.70 cfs <br /> SA 2x Q10 <br /> .00096 <br /> SA =2x <br /> 4.70 cfs <br /> .00096 <br /> SA =9,791 ft 2 <br /> The surface area of the pond is X at the normal water surface elevation. The <br /> pond meets the minimum sediment pond surface area requirements. <br /> 6. Surface Water Collection: Interceptor swales will be used to direct all sediment-laden <br /> runoff to the sedimentation pond. See sheets X and X for location of swales and <br /> details. <br /> 7. Dewatering Control: It is anticipated that dewatering will not be required. <br /> 8. Dust Control: A note on sheet X addresses the procedure for dust control should soils <br /> become too dry. <br /> 9. Flow Control: Not Required <br /> CEI Project#141001 Pg. 15 <br />