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MR #5: On-Site Stormwater Management <br /> All projects meeting the thresholds for this Small Project Stormwater Site Plan/Report shall employ <br /> on-site stormwater management BMPsto infiltrate,disperse and retain stormwater runoff on-siteto <br /> theextent feasible without causing flooding or erosion impacts on-site or downstream. <br /> Step SA: Determine whether infiltration is infeasible for any portion of your <br /> . project site. <br /> ■ Review the infiltration infeasibility mapping available on Map Everett: <br /> ■ www.everettwa.gov/1431/Map-Everett-Online-Map-Viewer Zoom into your <br /> project site by typing your address into the search bar at the upper lefthand <br /> side. <br /> ■ In the mapping tool, select"Geotechnical" and then "Infiltration Infeasibility <br /> Area" and the applicable "Property" layers from the Layer List.You may <br /> need to click on the triple dots to move the "Property" layers up so that the <br /> parcel lines show on top of the "Infiltration Infeasibility Area" layer. <br /> ■ Print the resulting map to show the project site boundaries and the <br /> infiltration infeasibility mapping results using the Tabloid ANSI B Landscape <br /> layout option to show the legend and scale. <br /> ■ Download and save file as Infiltration Infeasibility with your address. <br /> ■ Areas mapped as red have been pre-determined to be infeasible for infiltration. <br /> ■ Areas mapped as green are potentially feasible for infiltration and must be <br /> assessed further for infiltration feasibility,as discussed further below. <br /> ■ Submit a copy of the map clearly showing your project site boundary and the <br /> infiltration infeasibility mapping results. <br /> Step 5.2: Determine whether the project is flow control exempt. <br /> How do I know if my project is flow control exempt? <br /> Your project is flow control exempt if 1) your project discharges directly to the Puget Sound <br /> or Snohomish River, or 2)your project discharges to a stormwater drainage system that is <br /> entirely man-made from the site to either of those water bodies. Exception: Flow control <br /> may be required if the stormwater plan reviewer identifies storm or surface water issues <br /> downstream of the project such as existing storm drains with inadequate capacity. <br /> 0 Select one of the boxes below: <br /> 0 Project is not flow control exempt. <br /> ❑ Project is flow control exempt due to direct discharge. <br /> City of Everett Public Works <br /> Small Project Stormwater Site Plan/Report—Sept.2023 Page 21 of 40 <br />