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Staff Report to the Planning Commission Lands of Askarinam 27198 Elena Road November 6, 2008 Page 9 of 12 should verify that the mapped bedrock formation (Franciscan Complex) has been confirmed by subsurface exploration at the site. The extent of existing site fill materials to be removed and recompacted should be discussed. Proposed site drainage improvements should be evaluated from a geotechnical perspective to verify that drainage dissipation structures are not located such that they are likely to result in adverse impacts to fill prisms, native slopes or hardscape surfaces. Any appropriate drainage design modifications should be recommended. Consideration should be given to increasing geotechnical design pressures for the pool shell given the moderate to highly expansive site soil conditions. Estimated building settlements should be discussed associated with presented foundation design alternatives. Appropriate documentation to address the above should be submitted to the Town for approval by the Town Geotechnical Consultant prior to acceptance ofplans for building plan check 2. Geotechnical Plan Review — The applicant's geotechnical consultant shall review and approve all geotechnical aspects of the project building and grading plans (i.e., site preparation and grading, site drainage improvements and design parameters for foundations, retaining walls and driveway) to ensure that their recommendations have been properly incorporated. The results of the plan review should be summarized by the geotechnical consultant in a letter and submitted to the Town Engineer along with other documentation prior to acceptance of plans for building plan check 3. Geotechnical Field Inspection — The geotechnical consultant should inspect, test (as needed), and approve all geotechnical aspects of the project construction. The inspections should include, but not necessarily be limited to: site preparation and grading, site surface and subsurface drainage improvements, and excavations for foundations and retaining walls prior to the placement of steel and concrete. The results of these inspections and the as -built conditions of the project should be described by the geotechnical consultant in a letter and submitted to the Town Engineer for review prior to final (granting of occupancy) project approval.