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e <br /> 1 <br /> Nitrate Mass Balance Calculation <br /> Parcel 3 <br /> i . <br /> Data Input: <br /> Effluent Quantity(Q): 490 gaislday Concentration Rain(Ne): 1,00 mg/L-N <br /> E Effluent Stream(N j: 46,00 mglL W Denitrification <br /> Site Area (A): ZOO Acres (�; 35.o <br /> ( ) deep Perc.of Rain (R): S,DO inlyr <br /> Result: <br /> Mass 13alartce_ <br /> Waste Lvading(1M: 3.28 inlyr <br /> MCL Drinking Water Nitrate as N; 10.0 mg/L.Af <br /> Percent of McL Nitrate as N 110% <br /> Equations: <br /> W in R (Q) 9-a-I x -it x 365 da x 1-4Le x 12 In x Z Kind <br /> yr day 7.48 gal 1 year 43,560 e 1 ft (A)acre i <br /> 3.29 irtlyr(site) =490 gal/day x(1 cu-R17,48 gals)x(365 days!1 year)x(7 acre 143, p sq-ft)x(12 in/7!t)x(1 sae 12 acres) <br /> Nz= WN-.(I-d)d1*RN,, Hantz che- ennemore Egu tian� <br /> W+R <br /> 11.01 mglL-N=((3.29 inlyr x 45 rngIL-N x(1-o.35})+(e inlyr x fm91L-N))1(3.29 inlyr+6 inlyr) <br /> Variables: <br /> No=Average nitrate-N concentration (mg/i)of combined effluent and rainfall percolate(11.ol mglL-N). <br /> W m Uniform waste water loading for study area(Inlyr)(3.29 inches/year). <br /> Nw=Tots)nitrate-N concantWion of waste water percolate(45 mg/L-N). <br /> d=Fraction of nftrate-N loss due to denitrification in the soil(35%). <br /> R=Uniform deep percolation of rainfall(6 in/yr). <br /> 0 <br /> Assumptions, <br /> 1. Totef nitrogen conventration of waste stream based on estimate of 45 mg/L-N, <br /> 2. Fraction of nitrate-N loss due to denitrification in the soil is assumed to be 35%. <br /> 3. Estimated deep percolation of rainfall is 6 in/yr, see deep percolation of rain worksheet. <br /> 4. Assume background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> I <br /> NEIL. 0. ANDERSON <br /> AND,A1100 A 5 5 0 C f A T E 5 <br /> i <br /> I <br />