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Nitrate Loading Calculations: <br /> Variable Value Units Description <br /> C 3360.0 gallons per day Effluent flow rate from report <br /> Nw 21.8 mg/L-N Effluent stream concentration from report <br /> A 4.04 acres Site area from report <br /> Nb 1.00 mg/L-N Concentration of rain water from report <br /> d 0.30 constant Denitrification factor from report <br /> R 6.56 inches per year Deep percolation of rain water from report <br /> W 11.18 inches per year Uniform waste water loading for site calculation result <br /> No 9.99 mglL-N RESULT. Long-term average concentration of percolating effluent <br /> Find Variable(W: <br /> (W) in = (Q) gn?l x 1 ft' x 365 day(s) x 1 acre x 12 in x 11 site <br /> yr day 7.48 gal 1 year 43,560 W 1 ft (A)acre(s) <br /> 11.18 myr(site)=3,360 gal/dayx(1 cu-ff/7.48 gals)x(365 days/1 year)x(1 acre/43,560 sq-ft)x(12 in/1 R)x(1 site 14.04 acres) <br /> Hantzsche-Fennemore Equation(NO: <br /> Nc= WN1-d( )+Rlds <br /> W+R <br /> 9.99 mg/L-N=((11.18 in/yr x 21.8 m91L-N x(1-0.3))+(6.56 Wyr x lmgfl.-N))1(11.18 iNyr+6.56 inyr) <br /> Assumptions: <br /> 1. Total nitrogen concentration of influent waste stream is 21.8 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 30%. <br /> 3. Estimated deep percolation of rainfall is 6.56 in/yr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> Nitrate Loading with Plate No.: 12 <br /> Recommended Effluent <br /> Concentration Project No: 1623 <br /> Chashmawala Property Date: January 9, 2017 <br /> LIVE OAK 25087 S. Lammers Rd. <br /> GEO ENVIRONMENTAL INC. Tracy, CA <br />