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• • <br /> ATTACHMENT E -1 <br /> Contamination Measurement Methodology: Single Loads <br /> This Attachment presents the methodology for quantifying the Contamination Level of <br /> single load(s) of Recyclable Materials Collected in the Service Area and delivered to the <br /> Designated Transfer and Processing Facility by Contractor. <br /> This Attachment is organized into the following six (6) sections: <br /> 1. Objectives— describes the purpose of the methodology. <br /> 2. Sampling rationale— defines which loads will be sampled. <br /> 3. Sampling allocation— describes the number of samples required to provide a <br /> sufficient level of accuracy in findings. <br /> 4. Test procedures— describes sampling and sorting activities for each load. <br /> 5. Sorting categories- describes the sorting categories. <br /> 6. Calculations <br /> Appendices 1 through 3 consist of: <br /> 1. methodology checklist <br /> 2. sample data collection forms <br /> 3. equipment list <br /> 1. Objectives <br /> This methodology is designed to estimate the Contamination Level (as a percentage by <br /> weight of the entire load) in an individual load from five (5) inbound material types <br /> Collected in the Service Area. These material streams are listed below and described <br /> further in Section 3. <br /> • Commercial Source Separated and Targeted Recyclable Materials <br /> • Commercial Organic Materials <br /> • Commercial Plant Materials <br /> • Single - Family Targeted Recyclable Materials <br /> • Single - Family Organic Materials <br /> The methodology described herein is intended to produce consistent and statistically <br /> reliable estimates of the Contamination Level of individual loads from the above material <br /> streams. In addition, the methodology is designed to require the minimum necessary <br /> organizational time and financial investment. <br /> 2. Sampling rationale <br /> Loads may be selected for sampling when observation of the load by SBWMA or <br /> Operator indicates that it may exceed the allowed Contamination Level. A statistical <br /> sampling process will be used to determine the Measured Contamination Level in <br /> individual loads. <br /> Franchise Agreement for Collection Services with Recology San Mateo County Attachment E -1 <br /> Redwood City Page 1 of 14 <br />