• Research and review of previous geotechnical investigation and geologic/fault reports for the site and vicinity • Geologic reconnaissance of the site • Subsurface exploration of the site • Laboratory testing of selected soil samples obtained during drilling • Geologic hazards evaluation • Site surface, subsurface, and groundwater conditions • Geologic and seismic conditions at the sites in accordance with California Geological Survey (CGS Note 48) and the Division of State Architect (DSA) requirements • Identify potential seismic hazards and liquefaction potential • Provide site specific seismic design parameters as per current California Building Code • Provide site specific Design Response Spectrum (2% on 50 years) • Corrosion and chemical attack potential of soils • Soil criteria for foundation design, including soil bearing pressure, embedment depths, and resistance to lateral loads • Estimated foundation settlements and differential settlements • Concrete floor slab on grade design recommendations including thickness, reinforcement, base, vapor barrier, and compaction • Earthwork construction including site preparation, over-excavation, fill placement, and compaction • General assessment and recommendations for use of on-site materials for construction • Preliminary asphalt concrete and concrete pavement sections based on assumed traffic indices for parking areas, drive aisles, delivery areas, fire access lanes, reinforcement, base, and compaction for TI- 5,6, and 7 • Recommendations and/or validation of base requirements for permeable pavers • Anticipated excavation conditions and temporary excavations • Underground utility trench backfill recommendations • Recommendations regarding demolition of existing structures • Compaction and base requirements for site walls and improvements • Percolation test at proposed planters and parking lots • Provide values for tie-back anchors • Provide values for caissons and/or piles • Provide values for passive pressure for design of light pole/ flag pole footings in areas outside of building pad where soil compaction may not occur. • Document removal and re-compaction test areas and depths • Observe and test compaction of subgrades to receive AC pavement and/or Portland cement concrete • Provide onsite compaction testing for AC pavement areas • Perform required laboratory tests on retained samples from on-site and/or imported materials for fill placement as required on the soils report.
