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• <br /> Nitrate Loadina Calculations: <br /> Variable Value Units Description <br /> a 560 gallons per day Effluent flow rate from report <br /> Nw 35 mg/L-N Effluent stream concentration from report <br /> A 0.50 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 13.70 inches per year Deep percolation of rain water from report <br /> W 15.1 inches per year Uniform waste water loading for site calculation result <br /> Ne 12 mglL-N RESULT: Long-term average concentration of percolating effluent <br /> Find Vanab/e(W <br /> A io- = (Q) fly( x 1 ft' 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 /> 15.06 in/yr(site)=560 gal/day x(1 cu-ff/7.46 gals)x(365 days/1 year)x(1 acre 143,560 sq-ft)x(12 in/1 ft)x(1 site/0.5 acres) <br /> Hantzsche-Fennemore Equation(Nc): <br /> • Nc=WN..(1-d)+M <br /> W+R <br /> 12.39 mg/L-N=((15.06 irtryr x 35 mg/L-N x(1-0.35))+(13.7 in/yr x 1mg/L-N))/(15.06 inlyr+13.7 in/yr) <br /> Assumptions: <br /> 1. Total nitrogen concentration of influent waste stream is 35 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 13.7 in/yr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> Nitrate Loading Calculation Plate No.: 8 <br /> • DelaProject No: 1821 <br /> ena Property <br /> LIVE OAK 3876 E.Emerson Rd. Date: May 7,2018 <br /> GEO ENVIRONMENTAL INC. Acampo,CA <br />