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Proposed Septic Sys 3 - M2 Winery <br /> Data Input: <br /> Effluent Quantity in GPD (Q): 344 Gal/Day <br /> Effluent Stream in mg/L-N (N,K): 74.6 mg/L-N <br /> Site Area in Acres(A): 17 Acres <br /> Concentratiion in Rain in mg/L-N (Nb 1 mg/L-N <br /> Denitrification in percent(d): 25 % <br /> Deep Perc.Of Rain in inches/yr(R ): 7.85 In/yr <br /> Calculations: <br /> Wi=Q x Cu-Ft/Gal x(DaysNr)x(Sq-Ft/Acre x Inches/Ft)x(1/A) <br /> N,=Wi'N-(1-d)+RN, <br /> Wi+R <br /> Result: <br /> Uniform waste water loading(Wi) 0.27 Inches/Yr <br /> Mass Balance in mg/L-N (N j: 2.84 mg1L-N <br /> Total Nitrate Mass °_. I 1 f 58 lbs <br /> MCL Drinking Water N as N: 1Q m IL-N <br /> Perecnt of MCL Nitrate as N 28 % <br /> Variables: <br /> NC=Average nitrate-N concentration (mg/L)of combined effluent and ranfall percolate <br /> Wi = Uniform waste water loading for study area (in/year) <br /> Nw=Total nitrate-N concentration of waste water percolate(mg/L-N) j <br /> d = Fraction of nitrate-N loss due to denitrification in the soil (%) <br /> R= Uniform deep percolation of rainfall(inches/yr) <br /> Nb= Background nitrate-N concentration of rainfall(mg/L-N) <br /> Assumptions: <br /> Res Effluent Stream in mg/L-N (N,v): 44 mg/L-N <br /> Concentratilon in Rain in mg/L-N (Nb 1 mg/L-N <br /> Denitrification in percent(d): 25 % <br />