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Nitrate Loading Calculations: <br /> Variable Value Units Description <br /> D 1564.5 gallons per day Effluent flow rate from report <br /> Nw 73.4 mg/L-N Effluent stream concentration from report <br /> A 3.61 acres Site area from report <br /> N6 1.00 mg/L-N Concentration of rain water from report <br /> d 0.35 constant Denitrification factor from report <br /> R 13.7 inches per year Deep percolation of min water from report <br /> W 5.83 inches per year Uniform waste water loading for site calculation result <br /> Nc 14.9 mglL-N RESULT: Long-term average concentration of percolating effluent <br /> Find Variable(W <br /> (W) in- = (0) 0 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 ft2 1 ft (A)acre(s) <br /> 5.83 inyr(site)=1,565 gai/day x(1 cu-ft/7.48 gals)x(365 daysr 1 year)x(1 acre/43,560 sq-ft)x(12 in/1 R)x(1 site/3.61 acres) <br /> Hantzsche-Fennemore Equation(Nc): -sS <br /> . Nc= WN...(1-d)+RN. "503 <br /> W+R <br /> �f27 9x— x �6 - 13.q / /9,53 <br /> 14.94 mgrL-N=((5.83 inyr x 73.4 mgt-N x(i-0.35))+(13.7 inyr x lmg4--N))/(5.83 i,yr+13.7 inlyr) _ 19ZI311� <br /> Assumptions: It / 19 s3 <br /> 1. Total nitrogen concentration of influent waste stream is 73.4 mg/L-N. If different influent concentrations exist,use weighted average <br /> 2. Fraction of nitrate-N loss due to denihification in the soil is 35%. <br /> 3. Estimated deep percolation of rainfall is 13.7 intyr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> Nitrate Loading Calculation Plate No.: 11 <br /> (Existing & Proposed Facilities) Project No: 1711 <br /> • Prof leet Truck Lube Date: March 9,2017 <br /> LIVE OAK 24511 N. Highway 99 W.Frontage Rd. <br /> GEO ENVIRONMENTAL INC. Acampo,CA <br />