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No Development <br /> Nitrate Loading Calculations: <br /> Variable Value Units Description <br /> Q 0 gallons per day Effluent flow rate from report <br /> Nw 35 mg/L-N Effluent stream concentration from report <br /> A 81.616 acres Site area from report <br /> Nb 0.30 mg/L-N Concentration of rain water from report <br /> d 0.35 constant Denitrification factor from report <br /> R 6.50 inches per year Recharge rate of rainfall from report(evapotranspiration method) <br /> W 0.0 inches per year Uniform waste water loading for site calculation result <br /> Nc 0.3 mg/L-N RESULT: Long-term average concentration of percolating effluent <br /> Find Variable(tM: <br /> (W) j[L = (Q) g6j x 1ft3 x 365 day(s) x 1 acre x 12 in x 1 site <br /> yr day 7.48 gal 1 year 43,560 ftz 1 ft (A)acre(s) <br /> 0 iNyr(site)=0 gal/day x(1 cu-ft/7.48 gals)x(365 days/1 year)x(1 acre/43,560 sq-ft)x(12 in/1 ft)x(1 site/81.616 acres) <br /> Hantzsche-Fennemore Equation(Nc): <br /> N,= WNJ1-d)+RN, <br /> W+R <br /> 0.3 mg/L-N=((0 in/yr x 35 mg/L-N x(1-0.35))+(6.5 in/yr x 0.3mg/L-N))/(0 in/yr+6.5 iNyr) <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 35%. <br /> 3. Estimated deep percolation of rainfall is 6.5 in/yr. <br /> 4. Background nitrate-N concentration of rainfall is 0.3 mg/L-N. <br /> Hypothetical Future Homes <br /> Nitrate Loadinq Calculations: <br /> Variable Value Units Description <br /> Q 500 gallons per day Effluent flow rate from report <br /> Nw 35 mg/L-N Effluent stream concentration from report <br /> A 81.616 acres Site area from report <br /> Nb 0.30 mg/L-N Concentration of rain water from report <br /> d 0.35 constant Denitrification factor from report <br /> R 6.50 inches per year Recharge rate of rainfall from report(evapotranspiration method) <br /> W 0.1 inches per year Uniform waste water loading for site calculation result <br /> Nc 0.6 mg/L-N RESULT: Long-term average concentration of percolating effluent <br /> Find Variable(lM: <br /> (W) in = (Q) x 1 W x 365 day(s) x 1 acre x 12 in x 1 site <br /> yr day 7.48 gal 1 year 43,560 ftz 1 ft (A)acre(s) <br /> 0.08 in/yr(site)=500 gaUday x(1 cu-ft/7.48 gals)x(365 days/1 year)x(1 acre 143,560 sq-ft)x(12 in/1 ft)x(1 site/81.616 acres) <br /> Hantzsche-Fennemore Equation(Nc): <br /> Nc= WN..,(1-d)+RN. <br /> W+R <br /> 0.58 mg/L-N=((0.08 in/yr x 35 mg/L-N x(1-0.35))+(6.5 in/yr x 0.3mg/L-N))/(0.08 in/yr+6.5 iNyr) <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 35%. <br /> 3. Estimated deep percolation of rainfall is 6.5 in/yr. <br /> 4. Background nitrate-N concentration of rainfall is 0.3 mg/L-N. <br /> Nitrate Loading Calculations, Plate No.:23 <br /> Parcel 1 <br /> 4W "Harney Lane" Project No: 20-29 <br /> LIVE OAK APN 067-040-01 &-09 Date: October 12,2020 <br /> 22745&23649 E.Harney Ln. <br /> GEO ENVIRONMENTAL INC. Lodi,CA <br />