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Nkomo, Stantec April 24, 2009 Ms. Kristi Shelton Each truck driver will be provided with a Non-Hazardous Waste Manifest or bill-of-lading and the cellular phone number for the site manager. It will be the responsibility of the site manager to notify the Board of any unforeseen incidents. Each truck driver will be instructed to use a cellular telephone and/or their radio dispatch system to call for roadside assistance and report roadside emergencies. Confirmation Sampling Following excavation, a Stantec geologist will collect two confirmation soil samples from the floor of the excavation, and two samples from each of the sidewalls at approximate depths of 3 and 8 feet bgs. Samples from the northwest sidewall shored with sheet piles will be collected from material removed from within the excavation directly adjacent to the sheet piling. Samples will be collected into laboratory-supplied containers using the backhoe bucket, and field personnel will use new, disposable Nitrile gloves at each sample location. All reusable field equipment used to collect and handle samples or collect field measurements will be decontaminated before coming into contact with any sample. Equipment will be decontaminated between sampling locations using a non-phosphate detergent, a potable water rinse, and a deionized water final rinse. Decontamination fluids will be containerized and disposed of following completion of the work. Soil samples will be collected in laboratory-supplied sample containers stored on ice pending transport to Calscience Environmental Laboratories, Inc. for analysis. A completed chain-of-custody record will accompany each shipment of samples. Soil samples will be analyzed for TPHg by EPA Method 8260B, and for TPHd/TPHmo by EPA Method 8015M. Soil samples will be analyzed on an expedited turnaround (24 to 48 hours) to confirm that the cleanup goals for the site have been met. If sampling indicates that additional excavation is required, the area will be over-excavated to an appropriate depth, and confirmation soil samples will be collected from the excavation bottom and each of the four sidewalls. Secondary confirmation soil samples will be analyzed for appropriate constituents. Backfill and Compaction Following receipt of confirmation sample results which confirm that the cleanup goals have been met, the site will be backfilled to existing grade with imported engineered fill materials and compacted to 90 percent relative compaction per Modified Proctor(American Society for Testing and Materials or ASTM standard D 1557 [2007]). Prior to bringing fill material on-site, Stantec will review the soil quality data of the source material.All imported fill will be free of contamination and debris. Organic compound concentrations will be below detectable limits, and metal concentrations will be at typical background levels. Field Variances Variances from the work plan will be discussed with Board staff prior to any action being taken, except for emergencies when an immediate response is required. The Board will be notified if an emergency response is implemented. The field variances will be documented in the project completion report.