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Table 3. Average Daily Flow Calculation <br /> Use Units Rate Subtotal Reduction Average Daily <br /> Flow <br /> Residence bedroom 140 gal/bedroom 280 gpd none 280 gpd <br /> Tasting Room <br /> Employee employee 13 gal/employee 26 gal 4/7 14.8 gpd <br /> (Th.-Sun.) <br /> Tasting Room <br /> Customers 20 3 gal/customer 60 gpd 4/7 34.3 gpd <br /> (Th.-Sun.) <br /> Winery <br /> Employee 2 13 gal/employee 26 gal none 26 gal <br /> (7 days) <br /> Total 355.1 gpd <br /> Reduction factors convert calculated flow into average daily flow over a year: 4/7 converts for days of operation per <br /> week. These reduction factors need to be taken into account since not all parts of the facility are in operation at all <br /> times. <br /> • Table 4. Weighted Average Concentration Calculation <br /> Use Average Daily Estimated Waste Weighted Average <br /> Flow Water Quality Product <br /> Residence 280 gpd 35 mg/L-N 9,800 gpd-mg/L-N <br /> Employees (Tasting Room 40.8 gal 85 mg/L-N 3,468 gpd-mg/L-N <br /> and Winery) <br /> Customers 34.3 gpd 85 mg/L-N 2,915.6 gpd-mg/L-N <br /> Totals 355.1 gpd 16,183.5 gpd-mg/L-N <br /> Weighted Average <br /> Concentration: 16,183.5 gpd-mg/L-N / 355.1 gpd =45.6 mg/L-N <br /> • LOGE 1841 Page 11 <br />