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Fili n <br /> Nitrate Mass Balance Calculation, 30 AC Parcel 2 <br /> Data Input: <br /> Effluent Quantity(Q): 0 gals/day Concentration Rain (Ne): 1.00 mg/L-N <br /> i Effluent Stream (N,,„): 0.00 mg/L-N Denitrification (d): 15.0%. <br /> Site Area(A): 30.00 Acres Deep Perc. of Rain (R): 3.30 in/yr <br /> Waste Loading (VII): 0.00 in/yr <br /> Fi <br /> Result: <br /> Mass Balance(N�): 1.0 mg/L-N <br /> MCL Drinking Water Nitrate as N: 10.0 mg/L-N <br /> Percent of MCL Nitrate as N 10% <br /> J � <br /> Equations: <br /> F (W) in = (Q) gal x 1 ft x 365 day x 1 acre x 12 in x 1 Find <br /> C' yr day 7.48 gal 1 year 43,660 ft2 1 ft (A)acre <br /> 0 intyr(site) =0 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/30 acres), <br /> Nc= WN-0-d)+RNA, Hantzsche-Fennemore Eouation(Nd <br /> W+R <br /> F1I 7 mg/L-N=((0 intyr x 0 mg/L-N x(1-0.16))+(3.3 intyr x Img/L-N))/(0 in/yr+3.3 in/yr) <br /> Variables: <br /> f Nc=Average nitrate-N concentration (mgA)of combined effluent and rainfall percolate (1 mg/L-N). <br /> W= Uniform waste water loading for study area(in/yr)(0 inches/year). <br /> Nw=Total nitrate-N concentration of waste water percolate(0 mg/L-N). <br /> d=Fraction of nitrate-N loss due to denitrification in the soil (15%). <br /> R=Uniform deep percolation of rainfall (3.3 in/yr). <br /> Nb=Background nitrate-N concentration of rainfall (1 mg/L-N). <br /> r Assumptions: <br /> 1. Total nitrogen concentration of waste stream based on estimate of 0 mg/L-N. <br /> 2. Fraction of nitrate-N loss due to denitrification in the soil is assumed to be 15%. <br /> 3. Estimated deep percolation of rainfall is 3.3 in/yr,see deep percolation of rain worksheet. <br /> F 4. Assume background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> f <br /> J <br /> i <br /> '0A0 NEIL O. ANDERSON <br /> AN D ASSOCIATES <br /> f <br /> Plate 10 <br />