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Page Three <br /> 2 . It is our opinion that the fill materials placed in the <br /> initial filling operation were placed in lifts not exceeding <br /> approximately 12" to 16" , while at the same time scouring the <br /> excavation throughout the building areas . <br /> 3 . During the filling operations, the contractor compacted the <br /> sand soils with a. large pull-type vibratory roller drawn by <br /> his dozer and loader equipment. It is our understanding that <br /> a series of compaction tests has already been performed in <br /> some of the lower regions of the fill system. We have <br /> reminded the contractor to notify the soil testing laboratory <br /> within the next few days for the remaining necessary tests . It <br /> does appear that excellent compaction is being achieved . <br /> However, this must be thoroughly documented with copies to the <br /> Orono Building Official . <br /> PROFESSIONAL ENGINEERING CONSULTANTS, INC. <br /> 7i/ <br /> Brian R. Dobie , P. E. <br /> President <br /> BRD/fm <br /> cc : City of Orono Building Official <br /> Allied Test Drilling - Mike Roach, P. E . <br /> Coffin and. Gronberg , Inc . , - Mark Gronberg , P. E. <br />