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■ <br /> Geotechnical Inch <br /> ami <br /> c <br /> c� <br /> o� <br /> April 19, 2002 <br /> Henry F. Yee&Associates <br /> Attention: Henry Yee <br /> 3090 Fite Circle, Suite 203 <br /> Sacramento, CA 95827 <br /> FOUNDATION INVESTIGATION <br /> EL DORADO APARTMENTS <br /> El Dorado Avenue Southerly of McKinley Park <br /> Stockton, California <br /> File No. 1754-006 <br /> INTRODUCTION <br /> Our firm has completed a Foundation Investigation for the El Dorado Apartments proposed for construction <br /> along the easterly side of El Dorado Avenue immediately southerly of McKinley Park. The purpose of our <br /> investigation is to provide data pertinent to earthwork construction, foundation design, floor support, and <br /> pavement design. This report presents the results of our investigation. <br /> Field exploration for this investigation included the drilling of eight borings to depths of 10 to 15 feet below <br /> existing ground surfaces. Both disturbed and undisturbed soil samples were obtained from the borings for <br /> classification and laboratory testing. The boring and sampling locations are shown on Plate 1,Plot Plan.Logs <br /> of the borings are shown on Plates 2 through 9,Log of Boring. The nomenclature used to describe the soils <br /> on the logs is defined on Plate 10, Unified Soil Classification System. Moisture, density and unconfined <br /> compressive strength test data are presented on the boring logs at the depth of each sample tested. The results <br /> of testing performed to assess near surface soil plasticity are presented on Plate 11,Atterberg Limit Data. The <br /> results of testing performed to assess pavement subgrade properties are presented on Plate 12, Resistance <br /> Value Data. Guide Earthwork Specifications are attached to this report. <br /> PROPOSED CONSTRUCTION <br /> Approximately 180 apartment units will be constructed within two story wood frame structures with concrete <br /> slab on grade ground floors. The project also will include a management office, common area building,and <br /> a swimming pool. Building loads are expected to be light and common to this type of construction. For the <br /> purposes of this report, we have assumed that building ground floor levels will be graded slightly above the <br /> existing site grades. Asphalt concrete pavements will be provided for automobile parking and access; portions <br /> of the pavement will be subjected to weekly waste-removal truck traffic. <br /> 3140 BEACON BLVD.•WEST SACRAMENTO, CA 95691 •TELEPHONE 916/371-0434•FAX 916/371-1809 <br />