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2005-07-26_PWETC_AgendaPacket
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2005-07-26_PWETC_AgendaPacket
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3/22/2010 3:57:34 PM
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Commission/Committee
Commission/Authority Name
Public Works Commission
Commission/Committee - Document Type
Agenda/Packet
Commission/Committee - Meeting Date
7/26/2005
Commission/Committee - Meeting Type
Regular
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<br />March 23, 2005 <br />Page 11 <br /> <br />The results of comparing the single stream and dual stream collection methods in September and <br />October include: <br /> <br />. The single stream routes yielded increased quantities of paper compared to the dual stream <br />routes. <br /> <br />. The single stream routes generated less quantities of metals, glass and plastics than the dual <br />stream routes. <br /> <br />. The quantities of contaminants in the single stream routes were higher than the quantities of <br />contaminants found in the dual stream routes. <br /> <br />No conclusions are drawn as to the magnitude of the differences by weight because the weights <br />represent only the median percentages. <br /> <br />Table II below shows a comparison of the four single stream routes to the six dual stream routes <br />during the pilot (September and October). <br /> <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 /> <br />Total Quantities Collected by Route <br /> <br /> 4 Single Stream 6 Dual Stream <br /> Routes Routes <br />Route (Monday) Route (Wed - Friday)' <br />Sept. Mon 10,365 Sept Wed 9,625 <br />Sept. Mon Contrast 12,925 Sept Thurs 9,150 <br />Oct Mon 9,925 SeptFri 10,825 <br />Oct Mon Contrast 14,300 Oct Wed 7,975 <br /> OctThurs 10,600 <br /> OctFri 8,075 <br />Mean 11,879 9,375 <br />Standard Deviation 2,087 1,214 <br /> <br />1 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 /> <br />As reflected above, on average the quantities of materials collected during the pilot from the <br />single stream pilot routes were greater than from the dual stream pilot routes. However, the <br />standard deviation reflects some overlap in the potential quantities likely to be collected using <br />the two methods. <br /> <br />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 <br />
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