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1. PROJECT OVERVIEW <br />This document is intended to provide engineering: information necessary, to support the <br />building permit application to the City of Everett for the SFR and driveway_ proposed on <br />this. -iot.,. The..sfte:as located rat 2325 -75th -St, Everett, WA 98203 refer to Figure 1 for a <br />vicinity map. This project will take access from the existing roadway to the south (75th St <br />SE). The parcel area is apprwgmately 0.15 acres. The existing site, in the .area of <br />�=disturbance-consists-of lawn:=--The-slope-of-the-site-in=the=area of -disturbance -is mild -and <br />averages-approximately--3-percent-down--to-4heanoftheast74he-n SF �bealocateo <br />approximately 24 feet from the southern property line and 6 feet from the western property <br />line. <br />This project proposes to construct more than 2,000 sf and less than 5,000 sf of new and <br />replaced impervious surfaces. Therefore, Minimum Requirements 1-5 apply to all of the <br />new and replaced .impervious surfaces for this project along with all the converted <br />Vegetated areas. The proposed impervious surfaces will be infiltrated or dispersed on site. <br />Included on the following page is a copy of the MR flow chart from the Department of <br />Ecology Stormwater Management Manual for Western Washington (DOE SWMMWW <br />Figures,_ 2 & 3, are provided to show the existing and developed basins and runoff <br />conditions for this site. The runoff in the existing conditions sheet flows gradually over <br />vegetated surfaces to the northeast toward the northeastern property lines. <br />Due to the size of this project, Minimum Requirements 1-5 apply to the proposed drainage <br />design -as noted above. The stormwater- design has, been.-laid..out to meet the 2019 DOE <br />SWMMWW. <br />Haack75th SFR - 20-0817 <br />September 2020 <br />Revised November2020 Page.3 <br />