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in different types of vehicles, some of which are designed to <br /> compact waste. Compacted loads contain more waste and weigh <br /> more than un-compacted loads of the same volume. Therefore, <br /> weighing waste is probably a more accurate method of recording <br /> waste quantities. However, this method does require a scale <br /> system to weigh the vehicles bringing waste to the sites. <br /> Not all of the disposal facilities in San Joaquin County have <br /> scales to weigh incoming waste. The County's North County <br /> Recycling and SL and Lovelace Transfer Station have scales. <br /> These scales are computerized and the system provides a <br /> significant amount of information concerning the waste stream, <br /> based on both weight and volume. The City of Stockton has <br /> scales at its Austin Road SL and its French Camp SL. <br /> Information for the other disposal facilities is based on <br /> volume and is more general in nature. Late in 1992 scales <br /> were installed at the Foothill SL and began operations in <br /> February 1993. <br /> C. Overall Conversion Factor: <br /> For those disposal sites in the County with no . scales, a <br /> conversion factor to convert cubic yards to tons was developed <br /> using data compiled at the Lovelace TS. The conversion factor <br /> assumes that waste types received at the Lovelace TS are <br /> similar to those at other disposal facilities in the County. <br /> The Waste Characterization Studies performed in 1990 generally <br /> indicate that waste types are similar throughout the County. <br /> All waste is transported from the Transfer Station in transfer <br /> vehicles, which are weighed as they leave. The conversion <br /> factor was calculated by dividing the total tons leaving the <br /> transfer station during 1993 (136,733 tons) by the total cubic <br /> yards received at the transfer station during 1993 (732 , 202 <br /> cy) The result, . 1867, is the conversion factor used in this <br /> report to convert cubic yard data to tons for the Corral <br /> Hollow SL which has no scales. <br /> The . 1867 conversion factor is equivalent to 374 pounds per <br /> cubic yard. This conversion factor varies from year to year, <br /> as the following table indicates. <br /> 3 <br />