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KLEINFELDER <br /> CONCLUSIONS <br /> The results of our percolation tests performed on the north parcel indicate that a suitable soil <br /> percolation stratum exists at a depth of about 3.5 feet below the existing site grade and that <br /> conventional septic tank/leach trench sewage disposal system designed per SJC/EHD criteria <br /> should adequately serve the proposed residence on that parcel. <br /> Our percolation tests performed on the south parcel indicate that a suitable soil percolation <br /> stratum does not exist at a depth of 3.5 feet helow the existing site grade. A suitable soil <br /> condition is-defined as strata capable of percolating water at a rate of 60 minutes per inch or <br /> faster. A suitable soil stratum was encountered in that parcel at a depth of about 6.6 feet below <br /> the existing site grade. A conventional se tic leach * <br /> ch dis osal system with se age <br /> its designed per SJCBHD critena s ou d adequately serve res enc at parce <br /> The seepage pits sou extend to the sandy soils that were encountered at a depth of about <br /> feet below the existing site grade. <br /> LIMITATIONS <br /> The conclusions of this report are based on the information provided regarding the existing and <br /> proposed development and on the site conditions. It was assumed that the percolation test results <br /> are representative of the subsurface conditions in the general area. <br /> This completes the scope of work requested. Our work was performed in general accordance <br /> with the standard of care that exists in San Joaquin County. No other guarantee or warranty, <br /> expressed or implied, is made. <br /> Respectfully submitted, <br /> KLEINFELDER, INC. <br /> Ryan Olsen oQPOFESS11 <br /> Staff Engi <br /> Q sF� mom, <br /> y cm No.2283 -X z ' <br /> to <br /> P.6-05 I <br /> all <br /> eo c cal Department <br /> RJO:Ir <br /> Attachments <br /> 24832.G01/ST03R033 January 3,2003 <br /> ©2003 Kleinfelder,Inc. Page 3 of 3 <br />