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Project No. JB-569 20 June 2006 Revised 18 October 2006 Page 1 1.0 INTRODUCTION This report presents the results of a geotechnical study performed at the subject site for the proposed Vineyard Pass Subdivision. The project is located 865 Clara Lane in Pleasanton, California, as shown on the Vicinity Map, Figure 1 . 1.1 Purpose The purpose of this study was to evaluate the soil and geologic characteristics relevant to the design of the proposed development. General soil and foundation engineering design and recommendations are provided based on the physical characteristics of the subsurface materials and the geotechnical limitations created by the site's surface features. 1.2 Proposed Project Development We understand the proposed project will consist of developing a 3-lot residential subdivision at the subject site. We anticipate the structures on each lot to consist of wood-framing, stucco siding and either raised wood floors or concrete slab-on- grade floors. Maximum structural wall loads are anticipated to be approximately 2,000 pounds per lineal foot. Site grading is anticipated to include up to 1 3 feet of fill and up to 6 feet of cut for development of level building pads, site drainage, and drive area improvements. Please contact our office if the conditions of the project change. We may need to revise our recommendations if changes occur in the project's configuration, the type of construction, or the proposed loads. 1.3 Scope of Services The scope of work for the proposed development included the following: • Reviewing project documents provided by the client, • Exploring the subsurface soil conditions with three exploratory borings, • Sampling and performing laboratory testing of soil obtained from borings, Analyzing the soil data compiled during the exploration, and • Reporting our findings and providing recommendations for site development. This study does not include an environmental assessment or investigation for the presence or absence of hazardous or toxic material in structures, soil, surface water, groundwater, or air on, below or around the project site. K_nrt'macher Engineering. Inc.