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Table 1: Samples per Load and Results Quarterly samples and Annual samples and results results Estimated Number of Approximate N umber of Approximate Material stream sample samples statistical samples statistical weight error range error range Commercial Source- Separated and 150lbs 12 3% 48 1.5% Targeted Recyclable Materials Commercial Organic 200lbs 12 8% 48 4% to 5% Materials Commercial 150lbs 12 1% 48 0.5% Plant Materials Single-Family ~ Targeted 150 Ibs 12 2% 48 1% Recyclable Materials Single-Family Organic 150lbs 12 1% 48 0.5% Materials The error ranges shown above shall be interpreted as follows. When the calculation method described below provides the Measured Contamination Level in a material stream, the estimate will be expressed in terms of percent by weight of the entire material stream. The error range around the estimate reflects a percent by weight of the entire material stream. Thus, if the Measured Contamination Level in a given material stream is five percent (50/0), plus or minus one percent (1010), then ninety percent (900/0) confidence that the Contamination Level is between four percent (40/0) and six percent (60/0) of the total material stream is achieved. It is expected that a two (2) person crew can collect, sort, and weigh approximately twelve (12) samples in an eight (8) to ten (10) hour period, assuming a constant supply- of samples is available. Therefore, two (2) sorters working approximately five (5) days per quarter will collect and sort the desired number of samples to assess all five (5) material streams, assuming there are enough inbound loads during that time period to provide the desired number of samples. To capture seasonal variations, sampling events will be conducted during each of the four (4) calendar quarters. In addition, sampling events will be scheduled to avoid days during and immediately following major holidays, and will be scheduled within each quarter to match as closely as possible with a single collection cycle for Contractor. 4. Field Procedures The field procedures are described in the following nine (9) steps, and shall be followed by the applicable party (Le., Contractor, Operator, AUTHORITY, or a third party designated by the AUTHORITY). · Advanced preparation for regularly scheduled testing Facility Agreement. Attachment 2-H Contamination Measurement Methodology Page 3 of 19