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Nitrate Loading Calculations: <br /> Variable Value Units Description <br /> Q 1480 gallons per day Effluent flow rate from report <br /> Nw 85 mg/L-N Effluent stream concentration from report <br /> A 54.48 acres Site area from report <br /> Nb 1.00 mg/L-N Concentration of rain water from report <br /> d 0.35 constant Denitrification factor from report <br /> R 3.12 inches per year Deep percolation of rain water from report <br /> W 0.37 inches per year Uniform waste water loading for site calculation result <br /> Nc 6.7 mg/L-N RESULT. Long-term average concentration of percolating effluent <br /> Find Variable(1M: <br /> (W) j(L = (Q) gal x 1 W x 365 day(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 /> 0.37 in/yr(site)=1,480 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/54.48 acres) <br /> Hantzsche-Fennemore Equation(Nc): <br /> N,= WN,j1-d)+RNe <br /> W+R <br /> 6.69 mgA--N=((0.37 in/yr x 85 mgrL-N x(1-0.35))+(3.12 intyr x 1 mg1L-N))/(0.37 in/yr+3.12 in/yr) <br /> Assumptions: <br /> 1. Total nitrogen concentration of influent waste stream is 85 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 3.12 in/yr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> u Plate No.: 12 <br /> Nitrate Loading Calculation <br /> Project No.:1M6 <br /> FC Tracy Holdings,LLC <br /> LIVE OAK 3590 Lehman Rd. Date: May 28,2019 <br /> GEO ENVIRONMENTAL INC. Tracy,CA <br />