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. May�> 200� ( <br /> Rockery-Pete Peters Residence <br /> L&A Job No. 1058 <br /> Fage 5 <br /> content in the fill soil that enable the soil to be compacted to the highest dry density for a given <br /> compaction effort. The sloping face of the fill embankment s6ould be no steeper than 1 H:1 V, and <br /> should be thoroughly compacted to a non-yielding state with a hoe-pack. The toe of the fill <br /> embankment should be set back at least 20 inches belund the heel of the facial stones. The sloping <br /> face of the fill embankment should be lined with a layer of non-woven filter fabric. T"e space <br /> between the facial stones and the cut bank or the fill embankment should be filled with a drain <br /> rock course consisting of 2-to-4-inch rock spalls after each course of the facial stones aze <br /> completed, except that the top 12 inches may consist of compacted on-site soils. <br /> A drain pipe should be laid alcng the low point in the keyway trench behind the base course <br /> stones to collect and drain away groundwater flowing to;vazd the rockery. The drain pip�should <br /> :.onsist of a 4-inch-minimum, perforated, rigid, PVC pipe wrapped in a layer of non-woven filter <br /> fabric. The trench and the drain line should have a slope of at least one percent to generate 1ow <br /> by gravity, and should be tightlined to drain into a storm sewer system. <br /> CLOSURE <br /> We aze pleased to be of service to you on this project. Please fee]free to call us ifyou have any <br /> questions regazding tlus repo�or need further consultation. <br /> 13 G S, <br /> ,�Q,�O�w� L!G Yours very trulY, <br /> �w �•. �� I,N&ASSOCIATES, INC. <br /> f'J , ° � /�J�.�-� <br /> 27589 <br /> � R�� • 7. S.(Ju an)Liu, Ph.D., P.E. <br /> � �S�p�,�Ay� Consulting Geotechnical Engineer <br /> Ex►�nec 7117/ Do <br /> Two plates attached <br /> LIU&ASSOCIATES,INC, <br /> 5�� <br />