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GEOTECHNICAL ENGINEERING STUDY <br />PROPOSED SAFEWAY FUELING STATION <br />415T STREET SOUTHEAST AND <br />RUCKER AVENUE <br />SEATTLE, WASHINGTON <br />E-8493-5 <br />INTRODUCTION <br />General <br />This report presents the results of the geotechnical engineering study completed by Earth <br />Consultants, Inc. (ECI) for the proposed Safeway fueling station at 42n° Street Southeast <br />and Rucker Avenue, Everett, Washington. The general location of the site is shown on <br />the Vicinity Map, Plate 1. <br />In November1998, ECI prepared a geotechnical engineering study for the existing <br />Safeway Store #1484 located southwest of the subject site. The purpose of this study <br />was to explore the subsurface conditions in the area of the proposed fueling station. <br />Based on the subsurface conditions encountered, specific geotechnical engineering <br />recommendations for the proposed fueling station were developed. <br />Project Description <br />We understand it is planned to develop the site with a fueling station. The station <br />construction will incluue a fueling island with an overhead canopy, two underground <br />storage tanks, and an attendant kiosk. We anticipate the station will be constructed at or <br />near existing site grade. The area around the fueling islands will be surfaced with <br />concrete pavements. The remainder of the site will be surfaced with asphalt-based <br />pavements. <br />The kiosk buitding will be one story in height and will be situated in the west-central <br />portion oi the island. The building will be of inetal construction with a slab-on-grade <br />iloor. The fueling island canopy will be of steel construction. We estimate column loads <br />for the canopy will be on the order of 80 to 100 kips. The underground storage tanks <br />wiil be situated in the eastern portion ot the site and will.require an excavation extending <br />to a maximum depth of about twenty (201 feet below existing grade. <br />If the above design criteria are incorrect or change, wo should be consulted to review <br />recommendations contained in this report. In any case, ECI should be retained to perform <br />a peneral review of the final construction dosign. <br />Emlh Con�ullnnu, Inc. <br />