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Pre-Grading Meeting: A pre-grading meeting shall be held prior to the start of any grading and construction activities. Attendees of this meeting should include the Owner, the Architect, the Geotechnical Engineer, the Contractor and the City Building Department field representative, to review procedures and scheduling. Earthwork 0bservations: At all times, the contractor should have a responsible field superintendent on the project in full charge of the work, with authority to make decisions. He shall cooperate fully with the Geotechnical Engineer in carrying out the work. All footing trenches for spread footings (secondary structures) and subgrade for the slab areas should be observed by the project Geotechnical Engineer to verifu that over- excavation and re-compaction operations of adequate depth, thickness, and compaction have been performed as specified. All footing excavations should be trimmed neat, level and square. All loose, sloughed or moisture softened soil should be removed and replaced with properly compacted soil. 38 Project No. D-3885-06 Christ Our Savior Catholic Parish The following are noted as items requiring verification during construction. Relative compaction of all fill materials placed on site should be tested in accordance with ASTM D1557. All new fill shall be brought to near optimum moisture, placed in layers not exceeding six inches in thickness, and compacted to at least 90 percent relative compaction for subgrade and 95 percent relative compaction for aggregate base. No jetting or water tamping of fill soils shall be permitted. All imported soil for engineered fill shall be pre-approved by the Geotechnical Engineer and consist of clean, granular, non-expansive soil, free of vegetation and other debris with an Expansion Index of 20 or less. I I T I I I I I I I I I E I I T I t t