Laserfiche WebLink
Nitrate Mass Balance Calculation <br /> Parcel 2 <br /> Data Input; <br /> I <br /> effluent Quantity(Q)' 490 gals/day Concentration Rain(N.), 1,00 mg/L-N <br /> Effluent Stream(N.): 45.00 mg/L-N Denitrification <br /> Site Area(A), 2.06 Acres (�� 35-o% <br /> peep Pere,of Rain(R): 8.00 in/yr <br /> Result: <br /> [l�a9s„Balance(Mr): 7D.8-mg/�,=N <br /> MCI.Drinking Water Nitrate as N: 10.0 rng/L-N Waste Loading(tM: 3.17 in/yr <br /> Percent of MCL Nitrate as N 108% <br /> Equations: <br /> (W) 1n ad <br /> {Q) x 1 ft3 x 365 d x 1 acre x 2 in x 1 Find <br /> yr day 7.48 gal 1 year +''3,560 f12 1 ft (A)acre <br /> 8.17 in/yr(sr(a)=490 gal/day x(1 cu-ft/7.48 gals)x(365 days/1 year)x(7 acre/43,560 sq-g)x(12 in 7 I fit)x(1 site/2.08 acres) <br /> I <br /> Nt= 1NN, 1 +RN hl�sahe_-l=ennemore�qua�'on rlyc� <br /> W+P <br /> 10,its mg/L-N=((3.17;*r x 45 mg/L-N x(1-0.35))+(8 in/yr x 1 mg/L-N))/(3.17 in/yr+6 in/yr) <br /> Variables: <br /> Nc a Average nitrate-N concentration (mg/1)of combined effluent and rainfall percolate(10,76 mg/l.-N), <br /> W T Uniform waste water loading for study area(in/yr)(3.17 inches/year). <br /> Nw=Total nitrate-N concentration of w*$te water percolate(45 mg/!_-N). <br /> d=Fraction of nitrate-N loss due to denitrification in the soil(35%). <br /> R=Uniform deep percolation of rainfall(6 intyr). <br /> 0 <br /> Assumptions: <br /> t. Total nitrogen concentratlon 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%. f <br /> 3. Estimated deep percolation of rainfall is 6 intyr,see deep percolation of rain worksheet. <br /> a. Assume background nitrate-N concentration of rainfall is 1 mg/L-N. ' <br /> i <br /> NEIL. 0. ANDERSON <br /> AND ASSOCIATES <br /> I <br />