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Kittitas County Upper Road Maintenance Facility <br />Exhibit A - Scope of Work <br />January 8, 2017 <br />• Provide recommendations for pavement subgrade preparation and asphalt concrete (AC) <br />pavement design sections for both automobile and truck traffic areas, if these surfacing materials <br />are considered for the project. <br />• Discuss drainage considerations for construction based on the conditions encountered in our <br />previous explorations. <br />• Develop a preliminary opinion regarding feasibility of stormwater infiltration within the site based <br />on the conditions encountered in our explorations, our observations and grain -size analyses. <br />• Present the results of our study in a written report including detailed soil logs, site plan and other <br />appropriate design figures. <br />Task 5 Assumptions: Geotechnical Engineering. <br />• Perform subsurface explorations at the site. We propose excavating up to 10 test pits across the <br />site using a track -mounted excavator. <br />• Kittitas County will provide the excavator and operator. Exploration depths will be up to 13 feet <br />deep for the test pits. Test pits will be terminated should very dense materials (soil and/or rock) <br />be encountered. Bulk samples will be obtained from the test pits directly from the excavator <br />bucket. <br />• Test pits will be backfilled by the County with excavated material, tamping the material in lifts <br />with the bucket. <br />• Anticipated tests include moisture content determinations, particle size analyses and Atterberg <br />limits testing, if appropriate. <br />• Additional testing may be required once the final stormwater facility location(s) are chosen. <br />Page 110 Maintenance Facility Design Phase 1 KPG <br />