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Data Analysis of City of Roseville Recyclable Materials <br />Table 11 <br />Comparison of Bi- Weekly Single Stream and Dual Stream Routes <br />Total Quantities Collected by Route During Pilot <br />(September and October) <br />Total Quantities Collected by Route <br />Route <br />4 Single Stream <br />Routes <br />(Monday) <br />Route <br />6 Dual Stream <br />Routes <br />(Wed - Friday)' <br />Sept. Mon <br />10,365 <br />Sept Wed <br />9,625 <br />Sept. Mon Contrast <br />12,925 <br />Sept Thurs <br />9,150 <br />Oct Mon <br />9,925 <br />Sept Fri <br />10,825 <br />Oct Mon Contrast <br />14,300 <br />Oct Wed <br />7,975 <br />Oct Thurs <br />10,600 <br />Oct Fri <br />8,075 <br />Mean <br />11,879 <br />9,375 <br />Standard Deviation <br />2,087 <br />1,214 <br />The weights from Tuesday's routes were excluded from the comparison because they represent weekly collection, <br />whereas the Wednesday, Thursday and Friday routes provided more comparable data as they were collected bi- <br />weekly. <br />As reflected above, on average the quantities of materials collected during the pilot <br />from the single stream pilot routes were greater than from the dual stream pilot routes. <br />However, the standard deviation reflects some overlap in the potential quantities likely <br />to be collected using the two methods. <br />Comparison of the Current Dual Stream Bi- Weekly <br />Method to the Dual Stream Weekly Method <br />Residents in the Tuesday pilot area were able to set out their 18- gallon bin weekly <br />rather than every other week. The comparative results are shown below in Table 12. <br />B1605 B-1 1 <br />