2119 LOMBARD AVE 2023-05-30 - Laserfiche WebLink

COMP LETE IF USING INFILTRATION (2A or 2B) TO MEET FLOW CONTROL REQUIREMENT Determine whether infiltration has been pre-determined to be infeasible for any portion of your project site. • Review the infiltration infeasibility mapping tool available on"Map Everett' C:3 everettwa.gov/mapeverett. • On the mappingtool,select"Geotechnical/Infiltration Infeasibility Area"and the applicable"Property"layers from the Layer List. • Zoom into your project site and print the resulting map to showthe project site boundaries and the infiltration infeasibility mapping results. ■ Areas mapped as red have been pre-determined to be infeasible for infiltration. ■ Areas mapped as green are potentially feasible for infiltration and must be assessed further for infiltration feasibility,as discussed further below. 0 ■ Attach a printed copy of the map clearly showing your project site boundary and the infiltration infeasibility mapping results. * If you selected Downspout Full Infiltration (2A), submit I and 2 below. If you selected Rain Garden/Bioretention (2B), on-site soils information for sizing is required from I through 3 below. Submit the following information to Permit Services with this report: I. A USDA Custom Soil Re ort from ht s://websoilsurve c.e ov.0 da. ov 2. USDA Soil Type(s)= (,/1 1 ^ ria444() ' ! ' l: 2-z- y j6v,3 3. Measured Infiltration Rate = in/hr, measured at BMP location on-site. Use Rain Garden andbook methodology for infiltration test. tier 1. tik ,-----_________. v Ni,,,,,t, _L._ ,,......„, 0 ,iCtJrytuaE Y&4L h/) 'I, City of Everett Public Works Small Project Stormwater Site Plan Report for Projects in the Combined Sewer Area-April 2021 20