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f Worksheet No. 1 <br /> Potential Deep Percolation of Rain <br /> CIMS Station#70 Manteca)San Joaquin County "*Potential <br /> *Potential ET *Precipitation Deep Percolation of Rain <br /> Month (in/mo) (in/mo) (in/mo) <br /> Sep-98 4.61 0.00 <br /> Oct-98 3.17 1.06 <br /> Nov-98 1.30 2.09 0.79 <br /> Dec,98 1.01 0-43 <br /> Jan-99 0.66 3.11 2.45 <br /> Feb-99 1.50 2.80 1.30 <br /> Mar-99 3.11 0.87 <br /> Apr-99 5.16 0.98 <br /> May-99 6.93 0.20 <br /> Jun-99 7.53 0.04 <br /> Jul-99 7.72 0.00 <br /> Aug-99 6.48 0-00 <br /> Subtotal: 11.58 in/yr 4.641n/yr <br /> * Source. CIMS, Califomia Department of Water Resources. <br /> "* Assumption: If monthly precipitation exceeds potential ET then <br /> the difference is potential deep percolation. <br /> Assume 2 inches of runoff. <br /> Potential Percolation - Estimated Runoff= Deep percolation of rain <br /> 4.54 in -2 in = 2.54 in <br /> w <br /> �QERja4 <br /> NEIL d,ANDERSON&ASSOC.,INC. <br /> cEoIECHMC^LsEm cjEs-B4MEpw6LABORATOMM Z <br /> 22 Hm.9—Lai Ln&cA 9=43 4 A. <br /> R®k5'r-9m �t50��' <br /> Mate 5 <br />