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Holt(Station 248)• <br /> Deep Percolation=Precipitation-Evapotranspiration <br /> 2017 2021 <br /> Month Precipitation(in)Evapotranspiration(in) Deep Percolation(in) Month Precipitation(in) Evapotranspiration(in)Deep Percolation(in) <br /> Jan 2.55 1.18 1.37 Jan 0.55 1.65 <br /> Feb 4.47 1.48 2.99 Feb 0.04 2.55 <br /> Mar 1.88 3.60 Mar 0.73 4.02 <br /> Apr 1.76 4.32 Apr 0.04 6.02 <br /> May 0.07 7.04 May 0.01 8.23 <br /> Jun 0.15 7.69 Jun 0.00 8.53 <br /> Jul 0.00 8.30 Jul 0.03 8.36 <br /> Aug 0.00 6.64 Aug 0.01 7.00 <br /> Sep 0.00 4.99 Sep 0.09 5.82 <br /> Oct 0.16 3.95 Oct 3.59 3.55 0.04 <br /> Nov 1.03 1.38 Nov 0.57 1.49 <br /> Dec 0.08 1.62 Dec 3.87 0.77 3.1 <br /> Total 12.10 52.19 4.36 Total 9.53 57.99 3.14 <br /> 2018 2022 <br /> Month Precipitation(in)Evapotranspiration(in) Deep Percolation(in) Month Precipitation(in) Evapotranspiration(in)Deep Percolation(in) <br /> Jan 2.91 0.88 2.03 Jan 0.07 1.53 <br /> Feb 0.45 2.56 Feb 0.01 2.78 <br /> Mar 2.34 2.87 Mar 0.52 4.33 <br /> Apr 1.72 4.75 Apr 0.81 5.60 <br /> May 0.08 5.66 May 0.01 7.85 <br /> Jun 0.00 7.76 Jun 0.09 8.18 <br /> Jul 0.00 7.65 Jul 0.00 8.25 <br /> Aug 0.00 6.71 Aug 0.00 7.30 <br /> Sep 0.01 5.60 Sep 0.37 5.55 <br /> Oct 0.22 4.13 Oct 0.00 4.02 <br /> Nov 1.93 2.00 Nov 0.94 2.03 <br /> Dec 2.30 1.26 1.04 Dec 7.00 0.72 6.28 <br /> Total 12.00 51.83 3.07 Total 9.82 58.14 6.28 <br /> 2019 2023 <br /> Month Precipitation(in)Evapotranspiration(in)Deep Percolation(in) Month Precipitation(in)Evapotranspiration(In)Deep Percolation(in) <br /> Jan 2.07 1.23 0.84 Jan 6.34 1.38 4.96 <br /> Feb 3.92 1.76 2.16 Feb 1.77 1.91 <br /> Mar 1.79 3.16 Mar 3.93 2.87 1.06 <br /> Apr 0.31 5.09 Apr 0.11 5.49 <br /> May 1.88 5.86 May 0.29 6.10 <br /> Jun 0.01 8.29 Jun 0.01 7.46 <br /> Jul 0.00 8.35 Jul 0.00 8.46 <br /> Aug 0.01 7.46 Aug 0.01 7.15 <br /> Sep 0.12 5.60 Sep 0.03 5.17 <br /> Oct 0.01 4.51 Oct 0.11 3.82 <br /> Nov 0.57 2.31 Nov 0.38 2.14 <br /> Dec 2.74 1.06 1.68 Dec 2.24 1.11 1.13 <br /> Total 13.40 54.68 4.68 Total 15.22 53.06 7.15 <br /> 2020 2024 <br /> Month Precipitation Qn)Evapotranspiration(in)Deep Percolation(in) Month Precipitation(In)Evapotranspiration(In)Deep Percolation(in) <br /> Jan 0.98 1.26 Jan 3.37 1.04 2.33 <br /> Feb 0.01 3.13 Feb 2.15 1.75 0.4 <br /> Mar 1.19 3.58 Mar 1.15 3.43 <br /> Apr 0.67 5.25 Apr 0.61 4.90 <br /> May 0.11 7.25 May 0.04 7.59 <br /> Jun 0.03 8.60 Jun 0.00 8.65 <br /> Jul 0.01 8.47 Jul 0.01 8.79 <br /> Aug 0.00 7.12 Aug 0.00 7.39 <br /> Sep 0.01 5.24 Sep 0.00 5.70 <br /> Oct 0.01 4.08 Oct 0.03 4.30 <br /> Nov 0.13 2.28 Nov 1.50 2.07 <br /> Dec 1.41 1.33 0.08 Dec 2.36 0.88 1.48 <br /> Total 4.56 57.59 0.08 Total 11.22 56.49 4.21 <br /> 2025 <br /> Average Recharge(in)= 3.99 Month Precipitation(In)Evapotranspiration pn)Deep Percolation(in) <br /> Jan 0.17 1.78 <br /> Standard Deviation(in)= 2.2 Feb 2.46 2.04 0.42 <br /> Mar 1.01 3.49 <br /> Apr 1.00 5.16 <br /> EN 12 May 0.02 7.85 <br /> _ -1(xi-�/ Jun 0.00 8.24 <br /> 3 t Jul 0.00 7.92 <br /> N-1 Aug 0.00 7.39 <br /> Sep 0.12 5.10 <br /> Oct 2.43 3.11 <br /> where{x1,x2,...,Xn)are the observed values of the sample items,x bar is the mean Nov 2.78 1.28 1.5 <br /> value of these observations,and N is the number of observations in the sample. Dec 1.50 0.46 1.04 <br /> Total 11.49 53.82 2.96 <br /> Percent Error=Standard Deviation I mean'100% 'Data from Califomia Irrigation Management Information System(CIMIS) <br /> Percent Error= 54% <br /> Recharge Calculation Plate No.: 15 <br /> (Holt Station) Project No: 2620 <br /> Pham Property <br /> LIVE OAK 4440 Cherokee Rd. Date: April 30,2026 <br /> GEO ENVIRONMENTAL INC. Stockton,CA <br />