2000 S Solid Waste - Quality Assurance Technical Assistance Contract for Landfill Cell #4 Liner

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tw `tA Section 1VA Quality Control Testing 4 w4�` jThe Quality Control program will include all construction and administrative activities related to the soil liner to control the overall quality of the soil liner. Time schedules for Quality Control testing will closely follow the Contractor's proposed schedule and will be adjusted during construction as per the Contractor's schedule. All soils testing will be performed in-house by our qualified testing laboratory. Inspection of the structural fill, low permeability soil, GCL, drainage layer, diversion berms, slope drains, rip-rap ditches, access roadways and seeding and mulching will be performed on a full time schedule, as required Inspection of erosion control will be performed throughout the project to ensure compliance with the approved Erosion and Sediment Control Plan.. If applicable, material for the borrow study will be sampled from the borrow site or taken from stockpiles. The borrow source will be documented and approved by the Engineer prior to use. Prior to the low permeability soil and GCL placement, the base will be prepared--smooth,free of surface defects and proof rolled The Contractor will construct a test pad to determine if the required permeability can be obtained using the specified compaction equipment and lift thickness. The test pad will be used to check if the methods used to reduce clods in the soil (if applicable), interconnect lifts and compact the soil liner are sufficient to remold the soil and achieve the required Permeability. At the completion of phases of the project, Quality Control Reports and testing will be compiled and certified by the Quality Control Engineer. The reports will present all test results and test locations;both horizontal and vertical. ,s We will use the services of the following testing laboratory: Precision GwMrthetic Laboratories 11817 Watercr+ea"Court Austin,Texas 78733