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Staten Island (Station 242)' <br />Deep Percolation = Precipitation - Evapotranspiration <br />2016 <br />2019 <br />Month Precipitation (in) Evapotranspiration <br />(in) Deep Percolation (in) <br />Month <br />Precipitation <br />(in) Evapotranspiration (in) <br />Deep Percolation (in) <br />Jan 4.89 1.21 <br />3.68 <br />Jan <br />3.52 <br />1.28 <br />2.24 <br />Feb 0.89 2.77 <br />Feb <br />6.93 <br />1.64 <br />5.29 <br />Mar 6.09 3.5 <br />2.59 <br />Mar <br />3.07 <br />3.29 <br />Apr 1.43 5.63 <br />Apr <br />0.85 <br />5.06 <br />May 0.27 6.59 <br />May <br />2.79 <br />5.86 <br />Jun 0.00 7.97 <br />Jun <br />0.00 <br />8.13 <br />Jul 0.00 8.39 <br />Jul <br />0.00 <br />8.26 <br />Aug 0.00 7.05 <br />Aug <br />0.00 <br />7.43 <br />Sep 0.00 5.64 <br />Sep <br />0.15 <br />5.65 <br />Oct 5.78 3.01 <br />2.77 <br />Oct <br />0.00 <br />4.71 <br />Nov 1.42 1.76 <br />Nov <br />0.63 <br />2.33 <br />Dec 4.28 1.35 <br />2.93 <br />Dec <br />2.76 <br />0.98 <br />1.78 <br />Total 25.00 54.87 <br />11.97 <br />Total <br />20.70 <br />54.62 <br />9.31 <br />2017 <br />2020 <br />Month Precipitation (in) Evapotranspiration (in) Deep Percolation (in) <br />Month <br />Precipitation <br />(in) Evapotranspiration (In) <br />Deep Percolation (in) <br />Jan 12.68 1.17 <br />11.51 <br />Jan <br />1.00 <br />1.26 <br />Feb 8.22 1.65 <br />6.57 <br />Feb <br />0.02 <br />3.34 <br />Mar 2.54 3.81 <br />Mar <br />2.02 <br />3.45 <br />Apr 2.58 4.42 <br />Apr <br />2.12 <br />5.26 <br />May 0.06 7.51 <br />May <br />0.31 <br />7.28 <br />Jun 0.06 7.98 <br />Jun <br />0.04 <br />8.18 <br />Jul 0.00 8.34 <br />Jul <br />0.01 <br />8.29 <br />Aug 0.00 7.21 <br />Aug <br />0.02 <br />7.08 <br />Sep 0.00 5.42 <br />Sep <br />0.00 <br />5.42 <br />Oct 0.15 4.5 <br />Oct <br />0.01 <br />4.32 <br />Nov 2.56 1.54 <br />1.02 <br />Nov <br />0.34 <br />2.40 <br />Dec 0.07 1.91 <br />Dec <br />1.23 <br />1.57 <br />Total 28.90 55.46 <br />19.10 <br />Total <br />7.12 <br />57.85 <br />0 <br />2018 <br />2021 <br />Month Precipitation (in) Evapotranspiration <br />(in) Deep Percolation (in) <br />Month <br />Precipitation <br />(in) Evapotranspiration (In) <br />Deep Percolation (in) <br />Jan 5.76 0.94 <br />4.82 <br />Jan <br />0.99 <br />1.81 <br />Feb 0.16 3 <br />Feb <br />0.37 <br />2.86 <br />Mar 2.34 3.1 <br />Mar <br />0.93 <br />4.46 <br />Apr 0.49 4.86 <br />Apr <br />0.01 <br />6.28 <br />May 0.19 6.96 <br />May <br />0.01 <br />8.17 <br />Jun 0.00 8.42 <br />Jun <br />0.01 <br />8.33 <br />Jul 0.00 8.09 <br />Jul <br />0.00 <br />8.28 <br />Aug 0.01 6.29 <br />Aug <br />0.01 <br />6.22 <br />Sep 0.01 5.59 <br />Sep <br />0.00 <br />5.11 <br />Oct 0.02 4.33 <br />Oct <br />5.73 <br />3.02 <br />2.71 <br />Nov 2.53 2.09 <br />0.44 <br />Nov <br />0.75 <br />1.40 <br />Dec 2.82 1.35 <br />1.47 <br />Dec <br />1.33 <br />0.72 <br />0.61 <br />Total 14.30 55.02 <br />6.73 <br />Total <br />10.14 <br />56.66 <br />3.32 <br />'Data from California Irrigation Management Information <br />System (CIMIS) <br />Average Recharge = 8.41 <br />Standard Deviation (in) = 6.7 <br />N X12 <br />s- <br />]fir -1 <br />where {xi, 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 = 80 % <br />Recharge Calculation Plate No.: 12 <br />(Staten Island Station) Project No: 2210 <br />Parker Property Date: March 3, 2022 <br />LIVE OAK 25280 N. Graham Rd. <br />GEO ENVIRONMENTAL INC. Acampo, CA <br />