Laserfiche WebLink
Nitrate Loading Calculations: <br /> Variable Value Units Description <br /> Q 284.0 gallons per day Effluent flow rate from report <br /> Nw 85 mg/L-N Effluent stream concentration from report <br /> A 6.44 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 3.00 inches per year Recharge rate of rainfall from report(evapotranspiration method) <br /> W 0.6 inches per year Uniform waste water loading for site calculation result <br /> Nc 9.4 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 ft2 1 ft (A)acre(s) <br /> 0.59 in/yr(site)=284 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/6.44 acres) <br /> Hantzsche-Fennemore Equation(Nc): <br /> N,,= WNW(1-d)+RN, <br /> W+R <br /> 9.37 mg/L-N=((0.59 in/yr x 85 mg/L-N x(1-0.35))+(3 intyr x 0.3mg/L-N))1(0.59 ir✓yr+3 in/yr) <br /> Assumptions: <br /> 1. Total nitrogen concentration of influent waste stream is 85 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 3 in/yr. <br /> 4. Background nitrate-N concentration of rainfall is 0.3 mg/L-N. <br /> Nitrate Loading Calculation Plate No.: 13 <br /> jjp%�� Glassfab Tempering Project No: 20-60 <br /> LIVE OAK 8690 W.Linne Rd. Date: January 5,2021 <br /> GEO ENVIRONMENTAL INC. Tracy,CA <br />