Laserfiche WebLink
<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 />"" c.. <br />L...J 1J <br /> <br />r. = i <br /> <br />J LWi <br /> <br />(1 ) <br /> <br />where: <br /> <br />. c = weight of particular component <br /> <br /> <br />· w = sum of all component weights <br /> <br /> <br />· for i = 1 to n, where n = number of selected samples <br /> <br /> <br />. for j = 1 to m, where m = number of components <br /> <br />For example, the following simplified scenario involves three samples. For the <br />purposes of this example, only the weights of the component carpet are <br />shown. <br /> <br />Sample 1 <br /> <br />Weight (c) of carpet 5 <br /> <br />Total Sample Weight (w) 80 <br /> <br />Sample 2 Sample 3 <br /> <br />3 4 <br />70 90 <br /> <br />rCmpet= I 5 + 3 + 4 = 0.05 <br />80+ 70+90 <br /> <br />To find the composition estimate for the component carpet, the weights for <br />that material are added for all selected samples and divided by the total <br />sample weights of those samples. The resulting composition is 0.05, or 5 <br />percent (50/0). In other words,S percent (50/0) of the sampled material, by <br />weight, is carpet. This finding is then projected onto the stratum being <br />examined in this step of the analysis. <br /> <br />Facility Agreement, Attachment 2E <br />Contamination Measurement Methodology <br />Page 8 of 15 <br />