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<br />and will keep the copies in a separate place from the originals. The sampling crew <br />manager will ensure a copy of the form is delivered within one (1) day to the person <br />inputting the data into an electronic form. <br /> <br />5. Sorting categories <br />All loads identified for sorting shall be sorted and weighed into the following two (2) <br />categories: <br /> <br />1) Contamination <br /> <br />2) Targeted Recyclable Materials, Source-Separated Targeted Recyclable <br />Materials, Organic Materials, or Plant Materials <br /> <br />6. Calculations <br />Estimates of Contamination and Targeted Recyclable Materials, Source-Separated <br />Targeted Recyclable Materials, Organic Materials, or Plant Materials will be calculated <br />using a method that gives equal weighting or "importance" to each sample within a given <br />stream. Confidence intervals (error ranges) will be calculated based on assumptions of <br />normality in the composition estimates. <br /> <br />In the descriptions of calculation methods, the following variables will be used: <br /> <br />. i denotes an individual sample. <br /> <br />. j denotes the material type. <br /> <br />. Cj is the weight of the material type j in a sample. <br /> <br />. w is the weight of an entire sample. <br /> <br />. fj is the composition estimate for material j (r stands for ratio). <br /> <br />. a denotes a region of the state (a stands for area). <br /> <br />. s denotes a particular sector or subsector of the waste stream. <br /> <br />. n denotes the number of samples in the particular group that is being analyzed at <br />that step. <br /> <br />Estimating the Composition <br /> <br />The following method will be used to estimate the composition of waste belonging to the <br />Commercial Source-Separated and Targeted Recyclable Materials, Commercial Organic <br />Materials, Commercial Plant Materials, Single-Family Targeted Recyclable Materials, <br />and Single-Family Organic Materials streams. <br /> <br />For a given stream, the composition estimate denoted by fj represents the ratio of the <br />component's weight to the total weight of all the samples in the stream. This estimate will <br />be derived by summing each component's weight across all of the selected samples <br />belonging to a given stream and dividing by the sum of the total weight of waste for all of <br />the samples in that stream, as shown in the following equation: <br /> <br />Facility Agreement, Attachment 2-H <br />Contamination Measurement Methodology <br />Page 8 of 19 <br />