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Nitrate Loading Calculations: <br /> Variable Value Units Description <br /> Q 688.3 gallons per day Effluent flow rate from report <br /> Nw 501 mg/L-N Effluent stream concentration from report <br /> A 59.00 acres Site area from report <br /> Nb 1.00 mg/L-N Concentration of rain water from report <br /> d 0.15 constant Denitrification factor from report <br /> R 738 inches per year Deep percolation of rain water from report <br /> W 0.16 inches per year Uniform waste water loading for site calculation result <br /> Nc 1.87 mg/L-N RESULT: Long-term average concentration of percolating effluent <br /> Find-Variable (W): <br /> (W) in = (Q) gal x 1 ft-' x 365 day(s) x 1 acre x 12 in x 1 site <br /> yr day 7.48 gal 1 year 43,560 ft? 1 ft (A)acre(s) <br /> O.16 Wyr(site) =688 gaUday x(1 cu-tt/7.48 gals)x(365 days/i year)x(1 acre 143,560 sq-It)x(12 in/1 R)x(1 site/59 acres) <br /> Hantasche�Fannemore Equation (Nc): <br /> N�= WNL 1( -: +RN, <br /> W+R <br /> 1.87 mg/L-N=((0.16 in/yr x 50.1 mg/L-N x(1-0.15))+(7.38 irVyr x 1mg/L-N))/(0.16 in/yr+7.38 in/yr) <br /> Assumptions: <br /> 1 Total nitrogen concentration of influent waste stream is 50 1 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 15%. <br /> 3 Estimated deep percolation of rainfall is 7.38 in/yr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> 40� Nitrate Loading Calculation <br /> Including Potential Special Events <br /> Bokisch Vineyards Project No.: 1402 <br /> `~ LIVE OAK 18909 E&19101 N.Atkins Rd. Date: February 10,2014 <br /> GEO ENVIRONMENTAL INC. Lodi, CA 95240 r <br />