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Schaffer SFR <br /> Minimum Requirement # 1: Stormwater Site Plan <br /> Executive Summary <br /> The proposed project is located between Meridian and 1st Avenue SE on 112t1i Street SE <br /> in Everett, Washington. More generally,the site is located in Section 24, Township 28 <br />• North, and Range 4 East of the Willamette Meridian in Snohomish County, Washington. <br /> Please refer to the Vicinity Map attached in the next section. <br /> The approximate 0.42-acre site is undeveloped and nearly completely forested. The <br /> proposed development consists of removing existing forest vegetation for the <br /> construction of a single-family residence with associated driveway and walkway. Utilities <br /> for the site will be taken from existing utilities within 112tH Street SE. <br /> New roof, driveway, walkway, and frontage driveway cut areas total approximately 2,049 <br /> sf. Due to inadequate soil depths, stormwater infiltration is infeasible for the site. <br /> Stormwater runoff will be managed by roof drain splash blocks with more than 50 foot <br /> flow path. Disturbed lawn areas are to be compost amended per BMP T5.13. <br /> Note that project is designed to comply with the 2012 (with 2014 updates) DOE <br />• SWMMWW in conjunction with the current City of Everett Design and Construction <br /> Standards Manual. <br /> • <br /> Existing Conditions Summary <br /> O The property is one tax parcel,which is undeveloped and contains existing forest and <br /> wetland areas. The property will be accessed via 112tH Street SE,which lies north of the <br /> site. Vegetation on-site consists mainly of forest and wetland vegetation. On-site slopes <br /> are flat to moderate,ranging from 2%to 8%, and sloping southerly and easterly toward <br />• on-site wetlands and adjacent properties to the south and east. From a Snohomish County <br /> Soil Survey done by USDA the soils on-site consists of Alderwood-Urban Land Complex <br /> type soils. According to soil logs taken by Timothy Sarkela of Western Engineers, soils <br /> resemble gravelly silty loam. Refer to Appendix II for soil information. <br />• <br /> Adjacent parcels to the south and east appear to be developed with existing SFRs and <br /> driveways. The adjacent parcel to the west is undeveloped and forested. The 112t1i Street <br /> SE right-of-way lies to the north of the site. <br /> i <br /> S WESTERN ENGINEERS,INC. 2 PROJECT:17-1666-A <br />