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f' <br /> R.W. SIEGFRIED & ASSOCIATES <br /> CONSULTING CIVIL ENGINEERS <br /> ROBERT W.SIEGFRIED SUBDIVISIONS <br /> ARNOLD R.SCHAMBER MUNICIPAL <br /> JAMES F.YOST IMPROVEMENTS <br /> WAYNE M.WEST STRUCTURES <br /> ROBERT G.CELUM BUILDING DESIGN <br /> LEX A.CORRALES SURVEYS <br /> LYNN M.SUTTON <br /> STEPHEN R.THUMLERT R LY TO: <br /> ALAN E.LINDE STOCKTON <br /> January 26, 1988 ❑TRACY <br /> Mr. Michael L. Quartaroli <br /> Quartaroli & Associates <br /> 160 Northgate Drive <br /> Manteca, California 95336 <br /> Dear Mike: <br /> Subject: Preliminary Septic System Study <br /> Industrial Site Near Airport <br /> Attached for your review is a copy of our preliminary calculations <br /> showing the required septic tank capacity and seepage pits required for <br /> the subject project. Also shown is the criteria used to determine these <br /> items. <br /> We hope this is helpful to you. Please call if you should have any <br /> questions. <br /> Very truly yours, <br /> R. W. OCIATES <br /> BY ;t7 <br /> Tay a Z. West <br /> WMW/lu <br /> Enclosure <br /> MAIN OFFICE 4045 CORONADO AVENUE STOCKTON,CALIFORNIA 95200-2398 (209)943-2021 <br /> TRACY BRANCH OFFICE 3120 TRACY BOULEVARD,SUITE D TRACY.CALIFORNIA 953]6-1]19 (209)835-5300 <br />