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46 <br />Muniappa Naidu, Sr. REHS <br />San Joaquin County <br />Environmental Health Department <br />600 East Main Street <br />Stockton, CA 95202-3029 <br />• <br />CIVIL ENGINEERING, LAND PLANNING, SURVEYING, ENVIRONMENTAL SERVICES <br />February 6, 2008 <br />STANDARD FEDERAL EXPRESS <br />RE: Response to Comments for Costco Wholesale <br />Costeo Wholesale Retail Fueling Facility <br />2440 Daniels Street, Manteca, California <br />Costco Loc. No. TBD 1 Our Job No. 12919 <br />Dear Muniappa: <br />GiC�C�Ep`Jf�D <br />FEB 0 7 2008 <br />ENVIRONMENT HEALTH <br />PERMIT/SERVICES <br />On behalf of our client Costco Wholesale, we have revised the plans and technical documents for the <br />project referenced above in accordance with your comment letter dated December 26, 2007. Enclosed are <br />the following documents: <br />1. One ( l) copy of your original letter <br />2. One (1) set of site improvement plans <br />3. Three (3) sets of revised tank and electrical plans <br />4. One (1) set of Pisces Firestomper Automatic Fire Suppression System manufacturer's cut <br />sheets <br />5. One (1) copy of RHL Design Group, Inc.'s third -party engineering evaluation of the Bravo <br />under dispenser containment <br />6. One (]) copy of the UL listing letter for the tank sumps <br />7. One (1) copy ofthe Veeder-Root Line Leak Detection Systems Application Guide <br />The foliowing outline provides each of your comments in italics exactly as written, along with a narrative <br />response describing how each comment was addressed: <br />1. Provide documentation regarding spacing on the outside and end of the tanks after <br />determining if the excavation has stable or unstable soil. <br />Response: In unstable excavation, tanks require: Minimum 18 inches (24 inches preferred) <br />between adjacent tanks; minimum of one-half the tank diameter (5 -foot 3 -inches) from the <br />ends and sides of the tanks to excavation walls. The contractor should contact the soils <br />engineer for further recommendations during excavation. <br />18215 72ND AVENUE SOUTH KENT, WA 98032 (425) 251-6222 (425) 251-8782 FAX <br />BRANCH OFFICES 4 OLYMPIA, WA 4 TACOMA, WA 4 SACRAMENTO, CA # TEMFCULA, CA <br />www.barghausen.com <br />