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Hazardous Waste Tank System <br />Preliminary Written Assessment per CCR Title 22 <br />Chase Chevrolet quick Lube Stockton, CA 95212 <br />Foundation Assessment <br />December <br />2013 <br />Soil Type: Clay Sandy, Allowable Pressure, <br />psf <br />1500.00 <br />area of foundation, ft2 <br />50.79 <br />depth of concrete, in <br />6.00 <br />weight of concrete, lbs <br />3803.28 <br />weight of tank and contents, lbs <br />14196.00 <br />total weight on soil, lbs <br />17999.28 <br />pressure on soil, psf <br />354.37 <br />Safety Factor <br />4.23 <br />Soil is Okay for Foundation <br />Concrete Analysis <br />fc" psi <br />2500:'00 <br />Tbr <br />0.70 <br />a <br />1.00 <br />loaded area, int <br />256.00 <br />Foundation Bearing Capacity, Fb, lbs <br />190400.00 <br />Combined weight of tank and contents,lbs14196.00 <br />Safety Factor <br />+ 13.41 <br />Foundation is Okay for tank. <br />Integrity testing findi <br />results obtained!from <br />use. Initials: <br />Based on the above noted integrity test and the <br />test, the tank has sufficient integrity for its intended <br />Strandberg Associates 1(866) 388-0404 rwaterauy(@rwaterQUy.c.onj 15 <br />