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with these Specifications and the CQA Manual. G. Protection: 1. Do not route or allow construction traffic, except as necessary, on top of clay liner once material has been placed and compacted. 2. Constructed clay liner shall be maintained to meet the requirements of this Specification until final completion and acceptance of the Work. This shall include all measures to prevent erosion. During seasonal or other extended shutdowns, all exposed surfaces shall be protected as detailed in Article 3.1, PROTECTION OF EXPOSED SURFACES, of this Section. In addition, the clay liner shall be protected from any contamination that increases the hydraulic conductivity. Any contaminated material shall be removed and replaced at no cost to the OWNER. 3.10 CONSTRUCTION OF CLAY PLUG AND CLAY EARTHFILL A. General: 3. Clay Plug Material shall be processed to meet the requirements of Article 2.5 of this Specification. The EARTHWORK CONTRACTOR shall have the option to determine construction procedures to be used, subject to the approval and acceptance testing by the QA/QC CONSULTANT. 4. The EARTHWORK CONTRACTOR shall process the Clay Plug and Clay Earthfill Material suitable for the purpose intended. After processing, the Clay Plug and Clay Earthfill Material shall be free from dry clods, roots, organic matter, frozen material, debris, rocks or stones larger than 1 inch, and other deleterious material. Clay Plug and Clay Earthfill Material shall be thoroughly blended and compacted to provide a homogeneous material relatively uniform in gradation and moisture content. 5. The Clay Plug and Clay Earthfill Material shall be as uniform as possible, free of penetrating cracks, and having interlift boundaries completely blended. The soil shall be compacted to produce a soil structure having low hydraulic conductivity. B. Compaction: 1. Soil shall be spread evenly over the prepared subgrade with a thickness as required to achieve a 6-inch compacted lift, with a maximum 8-inch loose lift. 2. The minimum final thickness and extent of the clay plug and clay earthfill shall be as shown on the Construction Drawings. 3. Moisture conditioning shall be uniform throughout each lift 4. The clay plug and clay earthfill material shall be compacted in-place to a ® minimum dry density of 90 percent relative compaction at a water content of 3 to 6 percent greater than the optimum water content as measured by ASTM D1557. Forward Landfill WMU FU-08 02300 17 EARTHWORK