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Exhibit A Scope of Services <br /> Larimer Road Stabilization -6700 and 8400 <br /> 3. Drill one boring at each location to a depth of about 40 to 50 feet through the roadway <br /> embankment and into the underlying native soils. Install groundwater monitoring wells if <br /> deemed appropriate during drilling. <br /> We will complete the one-call to locate utilities within the right-of-way. Known utilities in <br /> the area include a 30-inch diameter force main,8-inch diameter water main,and overhead <br /> power and cable. Traffic control will be provided by the City. <br /> 4. Perform laboratory tests on representative samples of the soils, including tests for <br /> moisture content, particle size distribution, and Atterberg Limits, if appropriate. <br /> 5. Complete stability analyses of the existing condition at both locations using the computer <br /> program SLOPE/W. Use the program to develop repair alternatives to increase the stability <br /> to acceptable standards. A factor of safety of 1.3 or greater is an accepted standard for <br /> normal repair of landslides. A higher factor of safety of 1.5 is occasionally required for <br /> critical cases. <br /> 6. Develop alternative repair sketches and complete slope stability analyses to refine the <br /> configuration of the alternatives to obtain adequate factors of safety. <br /> 7. Prepare a report summarizing our field exploration, stability analyses, and slope <br /> stabilization alternatives. Provide a draft report for City review and incorporate review <br /> comments into the final report. <br /> 8. Attend one meeting to discuss the results and evaluate next steps for the project. <br /> GeoEngineers File 0661-119-00 Page 2 <br />