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Data Analysis of City of Roseville Recyclable Materials <br />(control) routes. As for the quantities of materials collected, Table 17 below reflects <br />the weights of the quantities collected for each route. <br />Table 17 <br />Comparison of Dual Stream Bi- Weekly with Larger Bins (Thurs) vs. Bi- <br />Weekly Control (Friday) <br />Total Quantities Collected by Route During Pilot <br />Thursday Friday <br />(Larger Bins) (Control) <br />September 9,150 10,825 <br />October 10,600 8,075 <br />Mean 9,875 9,450 <br />Standard Deviation 1,025 1,945 <br />Comparison of the Dual Stream Collection Method <br />Before and During the Pilot Program <br />Table 18 below compares the results of the dual stream collection routes before the <br />pilot was initiated (July) to the results from the control route (Friday) during the pilot <br />program (September and October). <br />Table 18 <br />Comparison of Bi- Weekly Dual Stream Routes' <br />Before vs. During Pilot <br />Total Quantities <br />(Tons) Collected by <br />July <br />September & <br />Route <br />(Before) <br />October (During)2 <br />Wednesday <br />6,000 <br />8,800 <br />Thursday <br />6,800 <br />9,875 <br />Friday <br />6,500 <br />9,450 <br />Mean <br />6,433 <br />9,375 <br />Standard Deviation <br />404 <br />541 <br />I he weights trom I uesday s routes were excluded from the comparison because they represent <br />weekly collection, whereas the Wednesday, Thursday and Friday routes provided more <br />comparable data as they were collected bi- weekly. <br />%Average of two routes (Sept. and Oct.) for each day. <br />The above results appear to reflect that more recyclable materials, by weight, were <br />collected during the pilot compared to the same collection day before the pilot. Also, <br />even though residents in the control route presumably were not aware of the pilot <br />study, they did set out more recyclable materials during the pilot. <br />B1605 B -15 <br />