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Deep Percolaton of Rain <br /> CIMS STATION NO. 70 MANTECA, CA Estimated Deep <br /> Perc of Rain <br /> Month Year Eto (in)* Precip (in)** Eto-Precip (in)*** <br /> Jan 2001 1.06 2.87 1.81 <br /> Feb 2001 1.74 2.05 0.31 <br /> Mar 2001 3.55 1.38 <br /> Apr 2001 4.82 0.98 <br /> May 2001 8.27 0 <br /> Jun 2001 8.27 0.04 <br /> Jul 2001 7.83 0 <br /> Aug 2001 7.22 0 <br /> Sep 2001 5.27 0.31 <br /> _ Oct 2001 3.49 0.35 <br /> Nov 2001 1.4 1.85 0.45 <br /> Dec 2001 0.89 4.53 3.64 <br /> Totals: 53.81 14.36 6.21 <br /> * Source: CIMS, California Department of Water Resources. <br /> (http://wwwdpla.water.ca.gov/cimis/cimis/hq/sjgnorm.txt) <br /> ** Source: USDA Soil Conservation Service, San Joaquin County, CA. <br /> *** Assumption: If monthly precipitation exceeds potential ET then <br /> the difference is potential deep percolation. <br /> j8- <br /> 22 <br /> p[RSNEIL O.ANDERSON&ASSOC.,INC. <br /> CEOTEC-INCAL SERVICES-ENGINEERNG LABORATORES Z Hnn9}On Ln.Lodi,CA 9440 10 `(209)367-3101 SS OL <br /> Plate 8 <br />