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July 21, 2014 <br /> Two Single-Family residences <br /> L&A Job No. 14-065 <br /> Page 2 <br /> SCOPE OF SERVICES <br /> Our proposed scope of services for this study comprises specifically the following: <br /> 1. Review geologic and soil conditions at and in the vicinity of the project site based <br /> on a published geologic map. <br /> 2. Explore subsurface conditions of the site with backhoe test pits excavated to <br /> depths where a firm soil stratum capable of providing adequate foundation support <br /> to buildings is encountered or to the maximum depth (about 10 feet) capable by the <br /> backhoe used in test pit excavation, whichever occurs first. <br /> 3. Conduct laboratory soil particle size distribution test in accordance with ASTM <br /> D422 on two soil samples obtained from targeted soil layers in the test pits. The <br /> results of these tests are to be used to evaluate whether onsite soils are suitable for <br /> stormwater disposal by infiltration and to determine their design infiltration rates <br /> in accordance with USDA Texture Triangle and Washington State Department of <br /> Ecology 2012 Stormwater Mana�ement Manual for Western Washington. <br /> 4. Perform geotechnical engineering analysis based on soil data obtained from the <br /> test pits. <br /> 5. Prepare a written report to present our findings, conclusions and geotechnical <br /> recommendations. <br /> SITE CONDITIONS <br /> SURFACE CONDITION <br /> The general location of the subject project site is shown on Plate 1 — Vicinity Map. The <br /> project site is bounded by Sound Avenue to the west, and adjoined by residential <br /> development to the north, south, and east. The site is situated on the base of a gentle to <br /> moderately steep, northwesterly declining hillside. <br /> LIU & ASSOCIATES, INC. <br />