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TRACY MATERIALS RECOVERY&TRANSFER FACILITY RFI AMENDMENT NO. 3 delivered from the adjacent Material Recovery Facility processing line and stored within the building, or be tipped directly from source-separated loads of clean material with less than 10% residuals, and less than 1% putrescibles. The operator will not conduct any additional sorting of the material since only clean material will be stored and then baled within the building. No garbage or municipal solid wastes or other types of waste materials will be delivered, sorted, processed, or stored in the building. The in-feed conveyor to the baler will be installed prior to the construction of the building addition, and there may be a period of up to 8 weeks where the clean fiber material will be placed on the concerte pad prior to being placed on the infeed conveyor, until the building addition is constructed. DRAINAGE REVIEW: Figure 3 — Preliminary Site Plan (1993) has been amended to show the Site Plan modifications to the yard waste composting area and the wood waste processing area. As part of the Site Plan modifications and actual expansion, the LEA requested a Drainage Review to ensure that the drainage facilities have adequate capacity. Figure 3 was originally presented an operations plan of 200 feet by 300 feet, 60,000 square feet, and east of the MRF/Transfer Station with the following activity: • Wood storage & Yard Waste Composting Area • Final cure area • Screening area • Unloading and grinding area Figure 3 also shows a "Future Wood Storage & Composting "Area adjacent to the operations area listed above. This area is 300 feet by 550 feet, or about 165,000 square feet. 1993 RFI Calculations: Reviewing Appendix E of the RFI, the drainage system to capture on-site rainfall was designed to accommodate twice the volume of run-off generated from the 10-year/24-hour precipitation event which would add up to be 5.12 acres, or 223,025 square feet. The retention basin was designed to retain all run-off generated from the site except run-off from the wood and yard waste composting area. The evaporation pond was sized for the wood storage and yard waste composting area where the quantity of run-off estimated to be generated is from a 100-year/24-hour precipitation event. Two feet of freeboard was part of the design criteria. During major events, if necessary, the pond will be pumped to EDGAR &ASSOCIATES, INC. 7 MAY 22, 2006