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Nitrate Loading Calculations: <br /> Variable Value Units Description <br /> Q 600.0 gallons per day Effluent flow rate from report <br /> Nw 45.0 mg/L-N Effluent stream concentration from report <br /> A 7.94 acres Site area from report <br /> Nb 1.00 mg/L-N Concentration of rain water from report <br /> d 0.25 constant Denitrification factor from report <br /> R 5.62 inches per year Deep percolation of rain water from report <br /> w 1.02 inches per year Uniform waste water loading for site calculation result <br /> No 6.01 mg/L-N RESULT. Longkenn average concentration of percolating effluent <br /> Find Vanable(1M: <br /> (W) j1L = (Q) sal 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 It (A)acre(s) <br /> (OGz) A 0 r 3(.e'� 0X-D2-25 x 13 D lzsg/i <br /> 1.02 inlyr(site)=600 gal/day x(1 cu-ft/7.48 gals)x(385 days/1 year)x(1 acre/43,560 sq-ft)x(12 in/1 ft)x(1 site/7.94 acres) <br /> Hantzsche-Fennemore Equation(NO <br /> Nc= 1-dl+RN. �� <br /> W+R <br /> YC <br /> x'15.0/ X f 6-Az <br /> 6.01 mg4.-N=((1.02 in/yr x 45 mgt-N x(1-0.25))+(5.82 irVyr x 1mg4--N))/(1.02 in(yr+5.62 in/yr) <br /> Assumptions: <br /> 1. Total nitrogen concentration of influent waste stream is 45 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 25%. <br /> 3. Estimated deep percolation of rainfall is 5.62 intyr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> Nitrate Loading Calculation Plate No.: 11 <br /> Singh Property Dwelling Cluster Project No.: 1515 <br /> LIVE OAK 5020 E. Eight Mile Rd. <br /> GEO ENVIRONMENTAL INC. Stockton,CA <br />