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Data Analysis of City of Roseville Recyclable Materials <br />Table 6 <br />Comparison of Material Compositions by Weight <br />Monday Routes <br />Weight (Pounds) <br />July September <br />Material Category (Dual Stream) (Single Stream) <br />Paper 3,879 9,165 9,327 <br />Metals 529 326 291 <br />Glass 1,320 617 690 <br />Plastic 717 699 594 <br />Contaminants 261 827 1,199 <br />Total2 6,707 11,633 12,101 <br />~ The weights were estimated by applying the median percentages from the sorting events to the average of the pilot route truck tonnages. <br />s The totals are based on the average of two pilot routes for each month. <br />The results of comparing the material compositions by weight for the Monday <br />collection routes include: <br />^ The quantities of paper collected via the single stream method (September and <br />October) increased compared to the quantities collected via the dual stream <br />method (July). <br />® The quantities of metals, glass, and plastic decreased with the single stream <br />collection method. <br />The amount of contaminants collected via the single stream method was higher <br />than the dual stream method. <br />No conclusions are drawn as to the magnitude of the differences by weight because <br />the weights represent only the median percentages. <br />Co ariso o Sin le Strea anal al Strea <br />ollecio e o s <br />The results of the Monday single stream pilot routes were compared to the combined <br />results of the Tuesday through Friday dual stream collection routes in September <br />(Table 7) and October (Table 8) to compare the overall single stream results to the <br />dual stream results. <br />October <br />(Single Stream) <br />sr~os B-7 <br />