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J" KLEI NEEL0ER <br /> 0.5 mg/l (per Technical Memorandum, Hydrologic and Soil Investigation for the <br /> Chico Urban Area,page 6, Dames and Moore,April 1996) <br /> Our calculation is as follows: <br /> Ne = 0.13(2)(35)(1 -0.35)+0.5(10.2) = 5.92 + 5.1 11•0IS 1.05 mg/1 as N <br /> 0.13(2)+10.2 0.26 +10.2 /0 — <br /> CONCLUSIONS <br /> Based on the above evaluation, we conclude that wastewater produced by the proposed <br /> residences and clubhouse should not cause the nitrate levels in groundwater below the site to rise <br /> above the state standards. Furthermore, the results of our percolation tests indicate that a <br /> conventional septic tank/leach trench sewage disposal system with seepage pits should <br /> adequately serve the proposed development. The seepage pits should extend to the sandy soils <br /> underlying the site that were encountered at depths ranging from about 11 to 15 feet below site <br /> 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 result <br /> is 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, gy QFESSI <br /> Q� t H' Ul (F <br /> KLEINFE ER, INC. 0 s�2 z <br /> W N0. 2283 m <br /> C A <br /> J' Cpl <br /> EC AN <br /> \GP" Gt <br /> rgTF <br /> oFOP,,P <br /> Ise <br /> G otec .c epartment Manager <br /> GHG:lr <br /> Attachment <br /> 20-4685-O1.G01/201 IR1543 December 12,2001 <br /> ©2001 Kleinfelder,Inc. Page 4 of 4 <br />