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Ripon(Station 249)* <br /> Deep Percolation=Precipitation-Evapotranspiration <br /> 2017 <br /> Month Precipitation(in) Evapotranspiration(in) Deep Percolation(in) <br /> Jan 5.33 1.96 3.37 <br /> Feb 3.49 2.73 0.76 <br /> Mar 1.53 3.93 <br /> Apr 1.30 4.96 <br /> May 0.10 7.62 <br /> Jun 0.01 8.47 <br /> Jul 0.00 8.95 <br /> Aug 0.00 7.33 <br /> Sep 0.01 5.50 <br /> Oct 0.07 4.24 <br /> Nov 0.95 1.81 <br /> Dec 0.09 1.83 <br /> Total 12.90 59.33 4.13 <br /> 2018 <br /> Month Precipitation(in) Evapotranspiration(in) Deep Percolation(in) <br /> Jan 2.83 1.12 1.71 <br /> Feb 0.79 2.86 <br /> Mar 1.56 3.39 <br /> Apr 1.29 5.63 <br /> May 0.11 7.77 <br /> Jun 0.00 8.91 <br /> Jul 0.00 9.01 <br /> Aug 0.01 7.44 <br /> Sep 0.02 5.80 <br /> Oct 0.33 4.10 <br /> Nov 1.78 2.08 <br /> Dec 2.42 2.02 0.40 <br /> Total 11.10 60.13 2.11 <br /> 2019 <br /> Month Precipitation(in) Evapotranspiration(in) Deep Percolation(in) <br /> Jan 1.16 1.84 <br /> Feb 2.81 1.83 0.98 <br /> Mar 2.85 3.34 <br /> Apr 0.32 5.55 <br /> May 1.53 6.35 <br /> Jun 0.01 8.58 <br /> Jul 0.00 8.60 <br /> Aug 0.01 7.55 <br /> Sep 0.09 5.58 <br /> Oct 0.01 4.28 <br /> Nov 1.31 2.20 <br /> Dec 2.84 1.05 1.79 <br /> Total 12.90 56.75 2.77 <br /> *Data from California Irrigation Management Information System(CIMIS) <br /> Average Recharge= 3.00 <br /> Standard Deviation(in)= 1.0 <br /> i=1 <br /> S= 7 <br /> N-1 (Wkipedia,2019) <br /> where{x1,x2,...,Xn)are the observed values of the sample items,x bar is the mean <br /> value of these observations,and N is the number of observations in the sample. <br /> Percent Error=Standard Deviation/mean*100% <br /> Percent Error= 34% <br /> Recharge Calculation Plate No.: 12 <br /> AP (Ripon Station) Project No:20-08 <br /> Duran Placencia Property <br /> LIVE OAK APN 239-190-19,Bird Rd. Date: March 9,2020 <br /> GEO ENVIRONMENTAL INC. Tracy,CA <br />