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. • i <br /> ( <br /> screen (When meaHuted on the minus No. 9 fractionl , ahould be placed � <br /> and compac[ed to a dense, unyieldinq condition to within 9 inchee of ( <br /> finish subgrade elevation. A minimum of 9 inchee of clean, Washed ! <br /> sand ahould then be insta:led to bring the site up to grade prior to t <br /> concrete placement . Thia method should reduce both total and . <br /> differential s�ttlement and m:nimize potential damaqe from froat i <br /> heave. i <br /> � <br /> 12.0 PROJECT DE3IGN AND CON3TRUCTION MONITORING � <br /> At the time of thia report , aite gradinq, etructural plans , and <br /> conetruction methode have not been finalized. We are available to R <br /> provide additional geotechnical consultation as the project deaign <br /> a <br /> developa and poeaibly changea from that upon which thie report ia <br /> based. We recommend that Aasociated Earth Sciences , Inc. , perform a <br /> geotechnical revieW of the plane prior to final deeign completion. <br /> In thie Way, our earthwork and foundation recommendatione ��iay be <br /> properly interpreted and implemented in the design. <br /> We are also available to provide geotechnical ongineering and � <br /> monitorinq services during construction. The integrity of the <br /> foundation depends on proper aite preparation and conatruction <br /> procedurea. In addition, engineering decisiona may have to be made <br /> in the field in the event that localized variatione in subsurface <br /> conditione become apparent . <br /> Thank you for the opportunity to be of aervlce. We have enjoyed <br /> working With you on thie etudy and are confident that theee <br /> recommendationa uill aid in the aucceseful completion of your <br /> proiect . If you should have any questions, or require further <br /> aesiatance, please do not hesitate to call . <br /> 8incerely, <br /> A360CIATED E11RTH 3CIENCEB, INC. <br /> � W' Ct 1VCW� Wr� MMi T. l0@Q <br /> Jill . Wheeler, eologiat 6�p o� ru;N,�E<< <br /> �� ��o <br /> � <br /> ,� + s <br /> �'(� <br /> � T ��4'�� ��� � <br /> Gary T. L ell , P. E. , P.G. � � �� �W <br /> Principal �FfSfCISt�PN��r <br /> S�ONAI F' <br /> �rMN� <br /> JAW/lb <br /> A906-26G <br /> DK7/10/89 lb <br /> 12 � 2 <br />