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• Table 5. Average Estimated Daily Flow at Existing Facilities (Estimated) <br /> Use Units Rate Subtotal Reduction* /average Daily <br /> Flow <br /> Employees 2 13 gal/employee 26 god 6/7 22.3 god <br /> (Diner) <br /> Customers 100 6 gal/customer 600 god 6/7 514.3 gpd <br /> (Diner) <br /> Employees <br /> (Mini-Mart/Gas 5 13 gal/employee 65 gpd N/A 65 gpd <br /> Station/Subway) <br /> Customers <br /> (Mini-Mart/Gas 300 5 gal/customer 1500 gpd N/A 1500 gpd <br /> Station/Subway) <br /> Total 2,101.6 gpd <br /> *Reduction factors convert calculated flow into average daily flow over a year:5/7 and 6/7 convert for days of <br /> operation per week. <br /> The above estimate of average daily flow can be used with the predicted nitrate <br /> concentrations of the various waste streams to identify a weighted average nitrate <br /> • concentration for the existing facilities: <br /> Table 6. Weighted Average Concentration Calculation at Existing Facilities <br /> (Estimated Customers) <br /> Use Average Daily Estimated Waste Weighted Average <br /> Flow Water Quality Product <br /> Employees (Diner) 22.3 gpd 85 mg/L-N 1,895.5 gpd-mg/L-N <br /> Customers (Diner) 514.3 gpd 35 mg/L-N 18,000.5 gpd-mg/L-N <br /> Employees (Mini-Mart/Gas 65 god 85 mg/L-N 5,525 gpd-mg/L-N <br /> Station/Subway) ) 3� <br /> Customers (Mini-Mart/Gas 1500 gpd 85 mg/L-N 127,500 gpd-mg/L-N <br /> Station/Subway) <br /> Totals /'2,101.6 gpd 152,921 Od-mg/L-N <br /> Weighted Average 152,921 gpd-mg/L-N / 2,101.6 gp - <br /> Concentration: <br /> • LOGE 1711 Page 13 <br />