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Nitrate Loading Calculations: <br /> Vanable Value Units Descno6on <br /> Q 980 gallons per day Effluent flow rate from report <br /> Nw 35.0 mg/L-N Effluent stream concentration from report <br /> A 2.74 acres Site area from report <br /> Nb 1.00 mg/L-N Concentration of rain water from report <br /> d 0.35 constant Denitrifcation factor from report <br /> R 10.32 inches per year Deep percolation of rain water from report <br /> Nc 4.81 inches per year Uniform waste water loading for site calculation result <br /> Nc 7.9 � mglL-N RESULT: Long-term avenge concentration of percolating effluent <br /> Find Variable(W: <br /> (W) j1L = (Q) gal x 1 flt3 x 365 day(s) x I acre x 12 in x 1 site <br /> yr day 7.48 gal 1 year 43,560 Hz 1 ft (A)acre(s) <br /> 4.81 in/yr(site)=980 ga/May x(1 cu-ft/7.48 gals)x(365 days/1 year)x(1 acre/43,560 5q-ft)x(12 in/I ft)x(1 site/2.74 acres) <br /> Hantzsche-Fennemore Equation(Nc): <br /> • N,= WN 0-d)+M <br /> W+R <br /> 7.91 mgrL-N=((4.81 inyr x 35 mg/L-N x(1-0.35))+(10.32 inryr x lmgrL-N))/(4.81 inyr+10.32 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 35W <br /> 3. Estimated deep percolation of reinfall is 10.32 inlyr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> Nitrate Loading Calculation Plate No.: 8 <br /> • Strauther Property Project No: 1818 <br /> LIVE OAK 200 Best Rd. Date: March 29,2018 <br /> GEO ENVIRONMENTAL INC. Stockton,CA <br />