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March 23, 2005 Page 11 The results of comparing the single stream and dual stream collection methods in September and October include: . The single stream routes yielded increased quantities of paper compared to the dual stream routes. . The single stream routes generated less quantities of metals, glass and plastics than the dual stream routes. . The quantities of contaminants in the single stream routes were higher than the quantities of contaminants found in the dual stream routes. No conclusions are drawn as to the magnitude of the differences by weight because the weights represent only the median percentages. Table II below shows a comparison of the four single stream routes to the six dual stream routes during the pilot (September and October). Table 11 Comparison of Bi.Weekly Single Stream and Dual Stream Routes Total Quantities Collected by Route During Pilot (September and October) Total Quantities Collected by Route 4 Single Stream 6 Dual Stream Routes Routes Route (Monday) Route (Wed - Friday)' Sept. Mon 10,365 Sept Wed 9,625 Sept. Mon Contrast 12,925 Sept Thurs 9,150 Oct Mon 9,925 SeptFri 10,825 Oct Mon Contrast 14,300 Oct Wed 7,975 OctThurs 10,600 OctFri 8,075 Mean 11,879 9,375 Standard Deviation 2,087 1,214 1 The weights from Tuesday's routes were excluded from the comparison because they represent weekly collection, whereas the Wednesday, Thursday and Friday routes provided more comparable data as they were collected bi- weekly. As reflected above, on average the quantities of materials collected during the pilot from the single stream pilot routes were greater than from the dual stream pilot routes. However, the standard deviation reflects some overlap in the potential quantities likely to be collected using the two methods. 01-00253-10101-0 I 0 I I 07000 I I 13500 P:\13500 Ramsey Co. 2003\R T A \Roseville\F A \B 1544 - Final Data Analysis