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Hantzche and Finnemore Equation Calculator <br /> Effluent Quantity (Q) 560.00 gals/day Nr _ I*Nw(1-d)+RNb I _ Q*365*12 <br /> Effluent Stream (Nw) 35.00 mg/L-N (I+R) A*7.48*43560 <br /> Site Area (A) 2.00 Acres <br /> I= Volume rate of water water entering the soil averaged over the gross <br /> Concentration Rain (Nb) 1.00 mg/L-N developed area, in inches per year. <br /> Denitrification (d) 0.15 Nw= Total nitrogen concentration of water water, in milligrams per liter. <br /> Average recharge rate of rainfall, in inches d= fraction of nitrate-nitrogen loss due to denitrification in the soil. <br /> per year (R) 9.44 in/year, <br /> R=average recharge rate of rainfall, in inches per year. <br /> Uniform waste water loading I 3.76 in/ ear Nb= Background nitrate-nitrogen concentration of rainfall recharge at the <br /> Total Nitrate-N Concentration ofwaste 0 water table, exclusive of waste-water influences, in milligrams per liter. <br /> water percolate (Nr) W11 ma/L-N <br /> Area of localized recharge? <br /> ft Seasonal high depth to groundwater <br /> Uniform waste water loading (I) 3.76 ft 3.5 Depth of vadose zone from bottom of DF to seasonal high groundwater <br /> ft Total feet of confining layers from bottom of DF to seasonal high groundwater <br /> % 4.3 Percent confining layers in vadose zone <br /> 7.8 <br /> Input Parameters 1 point for every 10' of vadose zone <br /> Calculated Paramter 1 point for every 10% confining layer <br /> Result <br /> Dispersal Field = DF <br />