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Ripon(Station 249)* <br /> Deep Percolation=Precipitation-Evapotranspiration <br /> 2017 <br /> Month Precipitation(in) Evapotranspiratin(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) Evapotranspiratin(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 /> J u I 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 /> *Data from California Irrigation Management Information System(CIMIS) <br /> Average Recharge= 3.12 <br /> Standard Deviation(in)= 1.4 <br /> 8 N- 1 <br /> (Wikipedia,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= 46 % <br /> Recharge Calculation Plate No.: 12 <br /> (Ripon Station) Project No: 1914 <br /> Martinez Property <br /> LIVE OAK 9216 W.Lorraine Rd. Date: April 19,2019 <br /> GEO ENVIRONMENTAL INC. Tracy,CA <br />