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Staten Island(Station 242)' <br /> Deep Percolation=Precipitation-Evapotranspiration <br /> 2016 <br /> Month Precipitation(in) Evapotranspiration(in) Deep Percolation(in) <br /> Jan 4.89 1 2 3.68 <br /> Feb 0.89 2.77 <br /> Mar 609 3.5 2.59 <br /> Apr 1 4 5.63 <br /> May 0.27 6.59 <br /> Jun 0.00 7.97 <br /> Jul 0.00 8.39 <br /> Aug 0.00 7.05 <br /> Sep 0.00 5.64 <br /> Oct 5.78 3.01 2.77 <br /> Nov 1.42 1.76 <br /> Dec 4.28 1.35 293 <br /> Total 25.00 54.87 11.97 <br /> 2017 <br /> Month Precipitation(in) Evapotranspiration(in)Deep Percolation(in) <br /> Jan 12.68 1 1 11 51 <br /> Feb 8.22 1.65 657 <br /> Mar 2.54 3.81 <br /> Apr 2.58 4.42 <br /> May 0.06 7.51 <br /> Jun 0.06 7.98 <br /> Jul 0.00 8.34 <br /> Aug 0.00 7.21 <br /> Sep 0.00 5.42 <br /> Oct 0.15 4.5 <br /> Nov 2.56 1.54 1.02 <br /> Dec 0.07 1.91 <br /> 2890 55.46 19.1 <br /> 2018 <br /> Month Precipitation(in) Evapotranspiratin(in) Deep Percolation(in) <br /> Jan 5.76 0-94 4 8 <br /> Feb 0.16 3 <br /> Mar 2.34 3.1 <br /> Apr 0.49 4.86 <br /> May 0.19 696 <br /> Jun 000 8.42 <br /> Jul 0.00 8.09 <br /> Aug 0.01 6.29 <br /> Sep 0.01 5.59 <br /> Oct 0.02 4.33 <br /> Nov 2.53 2.09 0.44 <br /> Dec 2.82 135 1.47 <br /> 14 30 55.02 6.73 <br /> 'Data from California Irrigation Management Information System(CIMIS) <br /> Average Recharge=(11.97 in+19.1 in+6.73 in)/3=12.60 in <br /> Standard Deviation(in)= 6.2 <br /> _ � --)^fix; - x)> <br /> S - 1 (Wkipeca 2019) <br /> where{xt,Q. _ ,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= 49% <br /> Recharge Calculation Plate No.: 2 <br /> (Staten Island Station) Project No: 1848 <br /> Proposed Ford Construction Facility <br /> LIVE OAK 12505 E.Brandt St. Date: May 6,2019 <br /> GEO ENVIRONMENTAL INC. Lockeford,CA <br />