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5.0 GEOTECHNICAL DESIGN RECOMMENDATIONS AND GEQMATRE]C <br /> CONSIDERATIONS—PUMP STATION <br /> This section presents a discussion of the geotechnical engineering recommendations ons and <br /> considerations that apply to the design of the pump station. When appropriate, earthwork and <br /> foundation design recommendations are presented separately. The anticipated sequence of <br /> construction is given first, followed by geotechnical design recommendations and other <br /> � considerations. <br /> The recommendations and other considerations presented in this report are intended for the <br /> design of the Lewis Manor Wall pump station for the City of Tracy. This report may not <br /> provide all the subsurface information that may be needed by a contractor to construct the <br /> project. <br /> 5.1 CONSTRUCTION SEQUENCE <br /> The general construction sequence for the project, as we envision it, will consist of the <br /> following steps. <br /> 1. The construction site is cleared of all vegetation and other objectionable materials. j <br /> The existing pump station is demolished and the existing well is abandoned. <br /> 2. The new well is drilled. <br /> 3. The site is graded to provide proper drainage. Excavations are made for <br /> construction of the footings for the pump station. <br /> 4. A pad of granular material is constructed and the pump station is built. Pipelines <br /> from the new structure are connected to the existing pipelines. <br /> 5. The area around the pump station is final graded and pavements are constructed. <br /> 6. Where not covered by pavement, measures are implemented to prevent erosion of <br /> the site soils. 1 <br /> We realize that the above sequence is a simplification of the construction activities that will be <br /> required to build the new pump station. Nevertheless, the recommendations and considerations <br /> in this section are based, in part, on the methods and sequence described above. Significant <br /> differences in the anticipated sequence should be brought to Geomatrix's attention so that we <br /> can evaluate their impact on the recommendations presented in this report. <br /> I.Troject15000s153131LE W 15-MAN.DOC <br /> 5 <br /> I I <br />