Laserfiche WebLink
0 <br />0 <br />Everett Dental Office - TIR <br />April 2017 <br />Trapping Sediment <br />Structural control measures will be used to reduce erosion and retain sediment on the <br />construction site. The control measures will be selected to fit specific site and seasonal <br />conditions. <br />The following items will be used to control erosion and sedimentation processes: <br />• Temporary gravel construction entrance <br />• Filter fabric fences (Silt fences) <br />• Ground cover measures such as straw cover and/or hydroseeding <br />• Inlet protection <br />Vehicle tracking of mud off -site shall be avoided. Installation of a gravel construction <br />entrance will be installed at a location to enter the site. The entrances are a minimum <br />requirement and may be supplemented if tracking of mud onto public streets becomes <br />excessive. <br />MR3 — SOURCE CONTROL OF POLLUTION <br />BMPs for mobile fueling of vehicles and heavy equipment and for concrete handling is <br />included in the SWPPP, provided for this project under a separate cover. <br />MR4 — PRESERVATION OF NATURAL DRAINAGE SYSTEMS & OUTFALLS <br />Existing drainage patterns and a detailed topographic survey indicate that the southern <br />portion of the site discharges runoff southwesterly into the public storm main located on <br />SE Everett Mall Way. Drainage patterns in the developed condition will continue to <br />discharge to SE Everett Mall Way, maintain the natural drainage system and outfalls. No <br />adverse impacts are anticipated as a result of the proposed Project improvements. <br />MR5 — ON -SITE STORM WATER MANAGEMENT <br />Non -roof Hard Surfaces <br />Minimum Requirement #5 requires the Project to implement one of the followng BMP's, <br />if feasible. <br />• Full Dispersion in accordance with BMP T5.30: <br />Full dispersion is not feasible because there are no native vegetative flow path for <br />to meet BMP T5.30 design criteria. <br />• Infiltration BMP's: <br />The site proposes 3,318 SF of permeable pavement for on -site stormwater <br />management of the parking lot area. <br />Soil Management Plan for Lawn/Landscape Surfaces <br />Within the limits of site disturbance, duff and topsoil will be retained in an undisturbed <br />The Concept Group <br />