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`/' R■ KLEINFELDER <br /> Our calculation is as follows: <br /> N, = 0.042(2)(70)(1 —0.25) +0.5(10.4) = 4.41 + 5.2 = 0.92 mg/l as N <br /> 0.042(2)+10.4 0.084+10.4 <br /> CONCLUSIONS <br /> Based on the above evaluation, we conclude that wastewater produced by the proposed leach <br /> field should not have a nitrate as nitrogen (1) concentration at the groundwater level greater than <br /> 10 mg/l. The results of our percolation tests indicate that a conventional septic tank/leach trench <br /> sewage disposal system should adequately serve the proposed evelopment. <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 /> KLEINYELDEINC. <br /> / �qpFESSl�.�Q <br /> Ron Heinzen, G.E. <br /> Senior Principal " <br /> Ih. 3" s <br /> Exp. 3.31-03 a <br /> REL:lr ?.:01FCHMT. <br /> Attachments <br /> 19046.G01/ST02R325 August 8,2002 <br /> ©2002 Kleinfelder,Inc. Page 4 of 4 <br />