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paper that could be marketed from the MRF was assumed to be similar to current markets. Both <br /> these systems therefore have similar paper diversion; however, costs in System 1 are greater due <br /> to the additional processing costs associated with "double-handling" of a portion of the paper. <br /> The impacts of this assumption are further described in the Summary of Results. <br /> The following sections of the report describe which materials were assumed to be marketable <br /> for each system. With the exception of mixed paper, the materials included in the collection and <br /> processing schemes were based on current markets. Some materials, such as textiles, may have <br /> current limited markets (i.e., only small quantities and in a specific form), but were not included <br /> in the systems. Further discussion of markets is provided herein relative to diversion potential. <br /> Additionally, assumptions were made relative to the level of service provided to each sector. <br /> For example, the unincorporated areas of the county have varying levels of residential density, <br /> some of which are similar to densities within the incorporated towns. These more densely <br /> populated areas, therefore, could have similar levels of service to "urban" areas. An allocation <br /> of unincorporated area residents to an "urban" level of service was only included in Systems 1 <br /> and 2. System 3 did not include revised residential collection services (all of county assumed <br /> rural) and, therefore, did not warrant this allocation. <br /> Other important assumptions relative to defining the systems for evaluation include: <br /> • In System 1, because universal collection of waste and recyclables will be <br /> provided to all residents and businesses, it was assumed that the special waste <br /> centers would not accept waste or recyclables. <br /> • Generally, the collection of recyclables from the commercial sector is not clearly <br /> outlined since these services are typically provided on a site-specific basis. For <br /> example, some businesses may generate sufficient quantities of a specific material <br /> to warrant source separated (by customer) collection, even though the system <br /> offers commingled collection. <br /> • A differentiation or assignment was not made between public and private sector <br /> collection or processing. For example, currently private haulers collect <br /> commercial and multi-family residential yard waste through direct agreements <br /> with the owners (jurisdictions do not bear any direct costs). However, because <br /> this material is part of the waste generation stream, it was included in each <br /> system and is reflected in the cost and diversion results. <br /> • The potential for haulers/users to deliver materials to out-of-county facilities has <br /> not been considered. <br /> Each system is described in more detail in subsequent sections of the report. <br /> NOR/K\WP\10790\RPKDL001.WP ES-2 09/95 <br />