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2005-07-26_PWETC_AgendaPacket
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2005-07-26_PWETC_AgendaPacket
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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 14 <br /> <br />Table 15 <br />Comparison of Dual Stream Bi-Weekly with Additional Education (Wed) <br />vs. Bi-Weekly Control (Friday) <br />Total Quantities Collected by Route During Pilot <br /> <br />Septem ber <br />October <br />Mean <br />Standard Deviation <br /> <br />Wednesday <br />(Addt'l Educ) <br />9,625 <br />7,975 <br />8,800 <br />1,167 <br /> <br />Friday <br />(Control) <br />10,825 <br />8,075 <br />9,450 <br />1,945 <br /> <br />Comparison of the Current Dual Stream Bi-Weekly Method to the Dual <br />Stream Bi-Weekly Method with Larger Bins <br /> <br />The residents in the Thursday pilot area received larger curbside recycling bins (22-gallon <br />capacity compared to the original IS-gallon capacity bins). The new bins were also equipped <br />with wheels. The collection method (dual stream) and frequency (bi-weekly) remained <br />unchanged. The results are reflected below in Table 16. <br /> <br />Table 16 <br />Comparison of Dual Stream Routes During Pilot <br />Bi-Weekly with Larger Bins vs. Bi-Weekly Control <br /> <br /> Thursday (Larger Bins) Friday (Bi-weekly) Route' <br /> Route' (Control) <br /> 90% Confidence 90% Confidence Statistically <br /> Significant <br /> Interval Interval Difference <br />Material Mean Lower Upper Mean Lower Upper <br />Category <br />Paper 63.7% 53.8% 73.7% 59.5% 53.9% 65.1% <br />Metals 5.8% 5.0% 6.6% 6.7% 6.0% 7.5% <br />Glass 19.1% 12.6% 25.7% 22.2% 14.5% 29.8% <br />Plastic 8.1% 4.8% 11.3% 8.6% 6.3% 10.9% <br />Contaminants 3.3% 2.0% 4.5% 3.0% 2.5% 3.5% <br />Total' 100% nfa nfa 100% nfa nfa <br /> <br />1 Four samples were sorted from the Thursday route. <br />2Three samples were sorted from the Friday route. <br />3The totals may not equal the sum of the material categories due to rounding. <br /> <br />As shown in Table 16, the upper and lower confidence intervals of the bi-weekly, dual stream <br />with larger bins were not significantly different than the bi-weekly dual stream (control) routes. <br /> <br />01-00253-10101-0101 1070001 I 13500 P:\13500 Ramsey Co. 2003\RTA \Roseville\F A\B1544. Final Data Analysis <br />
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