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0 AE CONSTRUCTION SFR <br />Minimum Requirement # 1: Stormwater Site Plan <br />Executive Summary <br />The proposed project consists entirely of clearing/grading for the construction of a new <br />single-family residence with associated driveway, and drainage improvements. The <br />existing house and driveway will remain on the west half of the property. Drainage <br />management for new roof, areas is to consist primarily of roof drain dispersion per BMP <br />T5.1 OB. Drainage management for new driveway areas consist of concentrated flow <br />dispersion per BMP T5.11. Disturbed vegetated areas will be amended lawn per BMP <br />T5.13. Total new impervious area proposed for the project total 4,945 sf. entirely located <br />within the boundary lines of the site. The project is to be designed to the 2014 DOE <br />manual and City of Everett code section 14.28. <br />Existint Conditions Summary <br />The property is one tax parcel and currently contains a single-family residence with its <br />respective concrete driveway, as well as a small shed. Vegetation on -site consists of <br />residential lawn areas, and partial tree covering. Slopes on -site are moderate, ranging <br />from 2% to 8%, and sloping south westerly toward adjacent parcels. From a Snohomish <br />County Soil Survey done by USDA the soils on -site consist of Alderwood-Urban land <br />complex type soils. According to a site investigation by Nathan Thompson of Western <br />Engineers, on -site soils resemble gravelly sandy silty loam type soils. Refer to Appendix <br />II for soil information. <br />Surrounding parcels are developed with existing SFRs and driveways. Vegetation in the <br />surrounding area is comprised primarily of residential lawns and partial tree covering. <br />WESTERN ENGINEERS, INC. 2 PROJECT: 19-1821-A <br />