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M04007MT <br />excavations during construction and to provide materials testing of <br />soil and concrete. <br />This geotechnical engineering study and stability analysis is <br />based on limited sampling; therefore, it is necessary to assume <br />that the subsurface conditions do not vary greatly from those <br />encountered in the field study. Our experience has shown that <br />significant variations are likely to exist and can become apparent <br />only during additional on site excavation. For this reason, and <br />because of our familiarity with the project, Lambert and <br />Associates should be retained to observe foundation excavations <br />prior to foundation construction, to observe the geotechnical <br />engineering aspects of the construction and to be available in the <br />event any unusual or unexpected conditions are encountered. The <br />cost of the geotechnical engineering observations and material <br />testing during construction or additional engineering consultation <br />is not included in the fee for this report. We recommend that your <br />construction budget include site visits early during construction <br />schedule for the project geotechnical engineer to observe <br />foundation excavations and for additional site visits to test <br />compacted soil. <br />We recommend that the observation and material testing services <br />during construction be retained by the owner or the owner's engi- <br />neer or architect, not the contractor, to maintain third party <br />credibility. We are experienced and available to provide material <br />testing services. We have included a copy of a report prepared by <br />Van Gilder Insurance which discusses testing services during con- <br />struction. It is our opinion that the owner, architect and engi- <br />neer be familiar with the information. If you have any questions <br />regarding this concept please contact us. <br />We suggest that your construction plans and schedule include <br />provisions for geotechnical engineering observations and material <br />testing during construction and your budget reflect these provi- <br />sions. <br />It is difficult to predict if unexpected subsurface conditions <br />will be encountered during construction. Since such conditions may <br />be found, we suggest that the owner and the contractor make provi- <br />sions in their budget and construction schedule to accommodate <br />unexpected subsurface conditions. <br />7 <br />~Cambert anD ~,ooociates <br />GOrvBULTIrvG OEOTEORRIO~L EROIMEERS •rvD <br />MATERIAL iE9TING <br />