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March 23, 2005 <br />Page 7 <br />route. The September and October Monday single stream pilot route results wcre quite similar, <br />with no significant difference beiween confidence intervals. <br />Because the conaparison of the `9�efor�' pilot Monday routes to the "darin�' pilot Monday routes <br />reflected statistically significant differences for each oi ihe categories, we calculated estimated <br />quantities of materials. Table 6 sh.ows the material compositions by weight, derived from <br />applying the median percentages for each material category obtained from the recycIable <br />matcrial sorting events to the average of the piIot ronte truck weights for each of the Monday <br />routes. <br />1'able 6 <br />Comparison of Maferial Compositions by Weight� <br />Monday Roates <br />Weight (Pounds} <br />July I September <br />Material Category (Dual Stream) (SingEe Stream) <br />Paper <br />Metals <br />G�ass <br />Pfast9c <br />Contaminants <br />3,879 <br />529 <br />9,320 <br />717 <br />261 <br />9,165 <br />32fi <br />617 <br />699 <br />827 <br />October <br />{Single Stream) <br />9,327 <br />291 <br />690 <br />594 <br />9,199 <br />_ToEalz I 6,707 I 11,633 L '�2,101 <br />� The weights were esbmated by applying the median percentages (rom the sorting events to the average of the pilot route truck toonages. <br />2 The totals are based on l�e average of hvo pilot routes tor each montt�. <br />The results of compa�iiug the rnaterial compasitions by weight for the Monday collection routes <br />include: <br />■ The quantities of paper collected via the single stream method (September and October) <br />increased compared to the quanYities collected via the dual stream method (July). <br />� The quantifiics of inetals, glass, and plastic decreased with the single strearr� collecfion <br />method. <br />■ The amount of contaminan:�s collected via the singie stream method was higher than the <br />dnal. stzeam method. <br />No conclusioxxs are drawn as to the magnitude of the differences by weight because the weights <br />represent anly the median �ercentages. <br />OL-00253-10101-010i � 070001 'i 13500 P:113500 Ramscy Co. 20031IZTA1RosevillelFA1B1544 - Final Data Aualysis <br />