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PRECIPITATION AND Eto DATA FOR STOCKTON, CA <br /> March 3.43 3.41 0.11 -- <br /> April 1.92 5.10 0.17 <br /> May 0.50 6.82 0.22 -- <br /> June 0.25 7.80 0.26 -- <br /> July 0.23 8.06 0.26 -- <br /> August 0.40 7.13 0.23 -- <br /> September 0.76 5.40 0.18 -- <br /> October 1.39 3.72 0.12 -- <br /> November 3.31 1.80 0.06 1.51 <br /> December 3.67 0.93 0.03 2.74 <br /> TOTALS (in.) 18.92 53.4 ------ 8.67 <br /> This chart illustrates that evapotranspiration far exceeds precipitation, even when using higher <br /> rainfall data that exceeds normal rainfall data by 56% (8.30 in. vs. 18.92 in.) Only in the months of <br /> January, February, November and December would deep percolation potentially occur. This data <br /> illustrates a relatively high potential for there to be significant evapotranspiration(or bare soil <br /> surface evaporation) from the filter bed disposal area. <br /> III. NITRATE LOADING STUDY FINDINGS <br /> The Nitrate Loading Study findings will be discussed in the following sequential categories of <br /> 1.) Projected wastewater flow volumes from the Office Building <br /> 2.) Anticipated wastewater characteristics <br /> 3.)Nitrate loading from the project <br /> 4.) Decentralized wastewater management system for the Office Building <br /> 5.) The Conclusions and Recommendations Section. <br /> A. WASTEWATER FLOW PROJECTIONS AND CHARACTERISTICS <br /> The characteristics of the wastewater flow will be predominately blackwater, and smaller volumes <br /> of gray water from sink water. Food preparation will not occur in the new Office Building. It is <br /> imperative that all food and food by-product wastes be handled as solid wastes and not be <br /> disposed of into the septic system. This will prevent concentrated organic loading and prolong the <br /> lifespan of the wastewater disposal system. <br /> 8 <br /> Chesney Consulting <br />