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Nitrate Loading Calculations: <br /> Venable Value units Description <br /> Q 560 gallons per day Effluent flow rale from report <br /> Nw 35 mg/L-N Effluent stream concentration from report <br /> A 1.65 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 11.5 inches per year Deep percolation of rain water from report <br /> W 4.6 inches per year Uniform waste water loading for site calculation result <br /> No 72 mg/L-N RESULT: Long-term average concentration of percolating effluent <br /> Find Variable(WI: <br /> W L = (Q) gill x 1W 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 /> 4.56 in/yr(site)=560 gal/day x(1 cu-ft/7.48 gels)x(365 days/1 year)x(1 acre/43,560 sq-ft)x(12 in/1 ft)x(1 site/1.65 acres) <br /> Hantzsche-Fennemore Eguation(Nc) <br /> • Nc= WN, (1-M+RN. <br /> W+R <br /> 717 mgd--N=((4.56 in/yr x 35 mg/L-N x(1-0.35))+(11.53 in/yr x 1mgt-N))/(4.56 irvyr+11.53 inyr) <br /> Assumptions., <br /> 1. Total nitrogen concentration of influent waste stream is 35 mgtL-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 11.53 intyr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> Nitrate Loading Calculation Plate No.: 8 <br /> • Medina Property Project No: 1902 <br /> LIVE OAK 5850 E.Ashley Ln. Date: January 17,2018 <br /> GEO ENVIRONMENTAL INC. Stockton, CA <br />