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2. EXISTING CONDITIONS SUMMARY <br /> The site covers approximately 0.15 acres. The existing site consists of lawn. <br /> Approximately 3,942 sf (0.09 acres) of the site will be impacted by new impervious <br /> surfaces. Approximately 6,000 sf (0.14 acres) of the site being disturbed as needed for <br /> the clearing/grubbing and restoration of the existing site. <br /> Soil logs, provided by Cobalt Geosciences in a geotechnical analysis were used to <br /> determine the on-site soils. Test Pits 3 and 4 taken on the project site found silty-fine to <br /> medium sand to approximately 8 feet below grade with some mottling observed at <br /> approximately 48 inches below grade (Refer to Appendix A for soil geotechnical report). <br /> The USDA Websoil Survey shows the soils as being Bellingham silty clay loam. The <br /> general site slopes in the area of disturbance are flat and average approximately 3 percent <br /> down to the west/southwest. Based on the existing soil information and the setbacks of <br /> the proposed improvements from any of the property lines and steep slopes, there is little <br /> potential for erosion or sedimentation during construction assuming the basic BMPs <br /> included in the SWPPP are installed and maintained properly. Refer to Figure 2 for an <br /> existing basin map. <br /> Legion Lots 10& 11 20-0214 <br /> April 2020 <br /> Revised:April 2021 Page 4 <br />