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<br /> Comprehensive Review of <br /> S olid W aste Collection and Disposal Options <br /> <br /> <br />v2.1 62 10/22/12 <br />In Sections 12 and 13, a discussion is provided regarding constructing a new regional <br />anaerobic digestion organics processing facility. SCS estimates that tip fees for this <br />type of facility could range between $45 to $100/ton depending on the assumed <br />capacity of the facility, estimated capital and operation and maintenance costs, and <br />offsetting energy revenues. The wide range of tip fees is due to the uncertainty in the <br />documented facility construction and operation costs for such facilities, and the <br />relatively small-scale of the conceptual facility evaluated. These types of facilities <br />are much more capital intensive and complex than compost facilities; however, the <br />amount of land required for anaerobic digestion facilities is generally much less than <br />compost facilities. <br />4.3.2.4 Financial Analysis <br />Applying the tip fee differential of $18.50 per ton between the Durham Transfer Station and the <br />reported tip fee at the Dean Brooks Farm Facility (i.e., $42.50 to $24) to the estimated amount of <br />residential organics that could be diverted from the landfill through a curbside collection <br />program (1,200 tons/year), only a projected disposal savings of $22,000 (1,200 tons/year x <br />$18.50/ton) is estimated. However, significant additional collection costs of over $850,000/year <br />(11,500 x $6.00/month/HH) would be required to provide this service to the Town’s estimated <br />11,500 households. Some cost efficiencies could be realized by combining the yard waste and <br />organics collection services; however, even if the costs are reduced by 75%, the projected cost <br />savings would not offset the increased collection costs. <br />4.3.2.5 Conclusions and Recommendations <br />The current management approach of disposing of the Town’s organic food waste in a Subtitle D <br />landfill is a cost-effective and environmentally sound practice; therefore, implementing a <br />curbside organics collection program is not recommended at this time. However, the Town <br />should continue to evaluate this conclusion in light of future technology and regulatory changes <br />(e.g., bans on disposal of organics in landfills). <br />4.3.3 Employing Radio Frequency Identification Device <br />Technologies <br />Radio Frequency Identification Devices (RFIDs) are being used by some municipalities to <br />monitor waste pickup. Waste collection vehicles that are equipped with RFID readers pick up <br />bins or carts marked with RFID tags. The readers then record the exact time and location of each <br />waste collection event allowing a higher degree of monitoring and control of the waste collection <br />process. More sophisticated systems can use RFID technology to relate the weight of the waste <br />collection container with other data such as customer name and address to enhance customer <br />billing and accountability functions. <br />The cost for the RFID tags can vary depending on the quantity purchased, level of protective <br />housing, and battery life. Waste collection carts can be purchased with an RFID tags embedded <br />for just about $1.00 additional per cart. The cost of retrofitting existing carts without RFID tags <br />is about $10 per cart. SCS understands the Town is currently systematically purchasing carts <br />equipped with RFID tags. These carts are being distributed into the waste collections systems as <br />existing residential carts are replaced due to damage, age, or new customers added to the system.