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Nitrate Loading Calculations: <br /> Variable Value Units Description <br /> Q 525.4 gallons per day Effluent flow rate from report <br /> Nw 46.9 mg/L-N Effluent stream concentration from report <br /> A 16.00 acres Site area from report <br /> Nb 1.00 mg/L-N Concentration of rain water from report <br /> d 0.15 constant Denitrification factor from report <br /> R 6.58 inches per year Deep percolation of rain water from report <br /> W 0.44 inches per year Uniform waste water loading for site calculation result <br /> No 3A4 mg/L-N RESULT: Long-term average concentration of percolating effluent <br /> Find Variable(W): <br /> (W) iD = (Q) gal x 1ft x 365 da s x 1 acre x 12 in x 1 site <br /> yr day 7.48 gal 1 year 43,560 ft2 1 ft (A)acre(s) <br /> 044 in/yr(site)=525 gaUday x(1 cu-ft/7.48 gals)x(365 days/1 year)x(1 acre 143,560 sq-ft)x(12 ml 1 Pr)x(1 site/16 acres) <br /> Hantzsche-Fennemore Equation (Nc): <br /> N,= WK 11-d)+RN. <br /> W+R <br /> 3.44 mgr--N=((0.44 in/yr x 46.9 mgr.-N x(1-0.15))+(6.58 in/yr x 1mg&-N))/(0.44 in/yr+6.58 in/yr) <br /> Assumptions: <br /> 1. Total nitrogen concentration of influent waste stream is 46.9 mg/L-N. If different influent concentrations exist,use weighted average <br /> 2. Fraction of nitrate-N loss due to denitrification in the soil is 15%. <br /> 3. Estimated deep percolation of rainfall is 6.58 inlyr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> Nitrate Loading Calculation Plate No.: 13 <br /> Stonum Vineyards Project No.: 1516 <br /> LIVE OAK 16388 N.Alipne Rd. Date: August 11,2015 <br /> GEO ENVIRONMENTAL INC. Lodi,CA <br />