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Nitrate Loading Calculations: <br /> Variable Value Units Descnofon <br /> Q 700.0 gallons per day Effluent flow rate from report <br /> Nw 35.0 mg/L-N Effluent stream concentration from report <br /> A 2.00 acres Site area from report <br /> Nb 1.00 mg/L-N Concentration of rain water from report <br /> d 0.25 constant Denilrifcation factor from report <br /> R 9.16 inches per year Deep percolation of rain water from report <br /> W 4.70 inches per year Unffomt waste water loading for site calculation result <br /> No 9.57 mg/L-N RESULT: Long-term average concentration of percolating effluent <br /> Find Variable(lM: <br /> (W) jl = (Q) M x 1W x 365 day(s) x ] acre x 12 in x 1site <br /> yr day 7.48 gal 1 year 43,560 ft' 1 ft (A)acre(s) <br /> 4.7 inyr(site)=700 gallday x(1 cu-ft 17.48 gals)x(365 daysr 1 year)x(1 acre/43,560 sq-ft)x(12 in 11 ft)x(1 site 12 acres) <br /> Hanhsche-Fennemore Equation Mc): <br /> Nc= VMw(1-d1+RNs <br /> W+R <br /> 9.57 mgr.-N=((4.7 intyr x 35 mgh-N x(1-0.25))+(9.16Wyr x 1mg4-N))1(4.7 in/yr+9.16 inlyr) <br /> Assumptions: <br /> 1. Total nitrogen concentration of influent waste stream is 35 mg/L-N. If different influent concentrations exist,use weighted average <br /> 2. Fraction of nitrate-N loss due to denitrification in the soil is 25%. <br /> 3. Estimated deep percolation of rainfall is 9.18 in/yr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> Nitrate Loading Calculation Plate No.: 9 <br /> • Project No: 1807 <br /> Foster Property <br /> LIVE OAK 30566 E.Hall Ave. Date: February 26,2018 <br /> GEO ENVIRONMENTAL INC. Escalon,CA <br />