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Speod Machinc <br /> Page 2 <br /> Novembcr 15, 1991 <br /> to rnnswct any foodng on or slightly above the topsoil layer. Immediutely beneath the <br /> topsoil, dense glactal soil was found and there is no reasonable p<�ssibiliry that soft or <br /> restdctive materials extst be�ond the depths explored. By keeping t6e foundation bearing <br /> sudacx separated from the ��psoil by two yards thick or so of compacted fill as proposed, <br /> the preaencx of the soft layer would not cause any problem with the proposed swcture. <br /> Aa a purely practical matter, floor slabs are routinely poured rner pre-e�dsting filla of t6e <br /> rype noted even though they too would be wlnerable to gross disoontinuiry of the 611. <br /> You could somewhat mitigate risk associated with non uniform aubgrade by mod'efyfng the <br /> alab and fouadation to some type of thickened edge slab. By generous ust of rcinforcing <br /> steelyou could distribute swcturalloads over a broadcr area <br /> Yours very wly S N.f^'` <br /> J/ �t.� , �,,..:,,'4.o�. <br /> �P `'V Y. �` �1 <br /> .� ryj � ► <br /> ' , �.;:a � � <br /> es Fatoq . . � ,► , � <br /> 1 -8561 s'o 4E uou ;r .`' / <br /> ,� c„ ,,. . <br /> JE:ad/401 <br /> FJsicr�ai `-'�'� <br />