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Nitrate Loading Calculations: <br /> Variable Value Units Description <br /> Q 354.3 gallons per day Effluent flow rate from report <br /> Nw 35.6 mg/L-N Effluent stream concentration from report <br /> A 1.12 acres Site area from report <br /> Nb 0.30 mg/L-N Concentration of rain water from report <br /> d 0.35 constant Denitrification factor from report <br /> R 6.24 inches per year Recharge rate of rainfall from report(evapotranspiration method) <br /> W 4.3 inches per year Uniform waste water loading for site calculation result <br /> Nc 9.6 mg/L-N RESULT. Long-term average concentration of percolating effluent <br /> Find Variable(lM: <br /> (W) in = (Q) gal x 1 ft3 x 365 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 /> 4.25 in/yr(site)=354 gal/day x(1 cu-ft/7.48 gals)x(365 days/1 year)x(1 acre/43,560 sq-ft)x(12 in/1 ft)x(1 site/1.12 acres) <br /> Hantzsche-Fennemore Equation(Nc): <br /> N,= WN (1-d)+RNe <br /> W+R <br /> 9.56 mg/L-N=((4.25 in/yr x 35.6 mg/L-N x(1-0.35))+(6.24 iNyr x 0.3mg/L-N))/(4.25 in/yr+6.24 in/yr) <br /> Assumptions: <br /> 1. Total nitrogen concentration of influent waste stream is 35.6 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 35%. <br /> 3. Estimated deep percolation of rainfall is 6.24 in/yr. <br /> 4. Background nitrate-N concentration of rainfall is 0.3 mg/L-N. <br /> Plate No.: 15 <br /> Nitrate Loading Calculation <br /> 63 <br /> _ Jaimes Property Project No: 20 <br /> LIVE OAK 10331 N.St.Rt.99 W.Frontage Rd. Date: January 27,2021 <br /> GEO ENVIRONMENTAL INC. Stockton,CA <br />