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INTER WEST—EVERETT CONTRACTOR'S YARD SITE IMPROVEMENTS Sitts& Hill Engineers, Inc. <br /> ' CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN Job Number 18,831 <br /> Section 5 —Soil <br /> A Geotechnical Engineering Report, dated October 8, 2020, has been prepared for the proposed project by Migizi <br /> Group, Inc. This report is included with this permit submittal as a separate document and indicates that site soils <br /> consist mostly of a surface layer of fill material(5 to 6 feet thick)followed by alluvial sand and peat.This soil provides <br /> little infiltrative capacity. The Migizi report also indicates a depth to groundwater of approximately 10 to 11 feet <br /> from the existing ground surface. <br /> SITTS& HILL ENGINEERS, INC. 6 <br /> TACOMA, WASHINGTON <br />