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Nitrate Loading Calculations: <br /> Variable Value Units Dgscri�bon <br /> Q 400 gallons per day Effluent flow rate from report <br /> Nw 35 mg/L-N Effluent stream concentration from report <br /> A 1 46 acres Site area from report <br /> Nb 030 mg/L-N Concentration of rain water from report <br /> d 035 constant Denithfication factor from report <br /> R 492 inches per year Recharge rate of rainfall from report(evapotranspiration method) <br /> yy 3 7 inches per year Uniform waste water loading for site calculation result <br /> Nc 9.9 mg/L-N RESULT. Long-term average concentration of percolating effluent <br /> Find Variable W <br /> (yy) i[L = (Q) g1l x 1g x 365 day(s) x 1 acre x 12 in x 1 site <br /> yr day 7.48 gal 1 year 43 560 ftz 1 ft (A)acre(s) <br /> 3 68,n/yr(site)=400 gal/day x(1 cu-1117.48 gals)x(365 days/1 year)x(1 acre 143.560 sq-rt)x(12W 1 R)x(1 slte/1.46 acnes) <br /> Hantzsche-Fennerriore Equation(Nc). <br /> N.= WN„(1-di+RN, <br /> W+R <br /> 9.91 mgt-N=((3.68 in/yr x 35 mgt-N x(1-0 35))+(4 92 in/yr x 0 3mg2-N))/(3 68 in/yr+4 92 m/yr) <br /> Assumptions: <br /> 1 Total nitrogen concentration of influent waste stream is 35 mgiL-N If different influent concentrations exist use weighted average <br /> 2 Fraction of nitrate-N loss due to denitirtfication in the sods 35% <br /> 3 Estimated deep percolation of rainfall is 4 92 in/yr <br /> 4. Background n trate-N concentration of rainfall is 0 3 mg/L-N <br /> Plate No.: 15 <br /> Nitrate Loading Calculation <br /> Project No: 20-44 <br /> Singh Property Date: September 16,2020 <br /> LIVE OAK 25723 S.Ellis Ave. <br /> GEO ENVIRONMENTAL INC. Tracy,CA <br />