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Nitrate Mass Balance Calculation - Revised <br /> Whitlow Property (APN 063-040-23) <br /> 11065 N. Alpine Road, Stockton, California <br /> Data Input <br /> Effluent Cuanttty(4): 250 alma <br /> Effluent Stream(N.): 45.00 mq�L-N <br /> Site Area(A): 1.50 Acres <br /> Concentration Raln(Nj: f.170 mglL49 <br /> DenitrifIcatton{d): 35.0% <br /> Net Rainfall Recharge(R): 6.80Olyr <br /> Result: <br /> Mass Balance(Nty: F.O mg4-•N <br /> MCL Drinking Water Nitrate as N; 10 0 mgrL-N— <br /> Percent 4f MCL Nitrate as N .00 <br /> Waste Loading(W); 2-24 iruyr <br /> Eq uatto ns: <br /> Find(M <br /> (W) L = (Q) grit x i its x 365 day x 1 acre x lzjtL x <br /> yr day 7.48gal 1 year 43.560 f12 I t (A)acm <br /> 2.24 irW(aft=2W gaVday x(1 cu-NI7 4.6 ga is)x(365 days)I yrwr)x(1 acre/43,560 sq-lt)x(12 in I9 ft)x(f srfe 11.S acres) <br /> NG= WN 0-d]+RNb <br /> W+R N n <br /> 8 mgA.-N={(2.24#W x 45 mg t-N x "r x 1mg1L-N))42.24"r+6 8 mlyr) <br /> Variables: <br /> Nc=Average nitrate-N concentration(mg1)o1 combined effluent and rainfall percolate(8 mg1L-N). <br /> W=Uniform waste water loading for study area(inlyr)(2.24 incheslyear). <br /> Nw=Total nilrate-N concentration of waste water percolate(45 mg1L-N)- <br /> d=Fraction of nitrate-N loss due to denitriflcation in the sail(35%). <br /> R=Uniform deep percolation of rainrail(6.8 Inlyr). <br /> Nb=Background nitrate-N concentration of rainfall(1 mglL-N). <br /> Axsumptfans: <br /> I. Total nitmgen concentration of waste stream based on estimate of 45 mQ&-N. <br /> 2. Fraction of nitrate-N loss due to denifrificatlon in the soli is assumed to be 35%- <br /> 3. Estimated deep percolation of rainfall is 6.8 inlyr,see deep percolation of rain worksheet. <br /> 4. Assume background nitrate-N concentration of rainfall is 1 mglL-N. <br /> Irerracon <br />