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range of 3 to 5 percent greater than the optimum water content. <br /> 2. If Clay Earthfill Material is too dry, add water to material by sprinkling, <br /> then mixing or discing to make moisture content uniform throughout lift. <br /> 3. Do not attempt to compact Clay Earthfill Material that contains excessive <br /> moisture. Aerate material by blading, discing, harrowing, or other methods, <br /> to hasten drying process. <br /> D. Field Quality Control <br /> 1. As the material is being placed and compacted, the QA/QC CONSULTANT <br /> will be monitoring the construction activities and soil properties as <br /> described in the CQA Manual. Acceptance testing frequencies are defined <br /> in the CQA Manual. The EARTHWORK CONTRACTOR shall cooperate <br /> with the QA/QC CONSULTANT in obtaining samples for the CQA <br /> acceptance testing, and in leveling and backfilling areas designated by the <br /> QA/QC CONSULTANT. <br /> 2. Holes left by sampling and testing shall be backfilled by the EARTHWORK <br /> CONTRACTOR using the Clay Erathfill Material. <br /> 3. If acceptance testing by the QA/QC CONSULTANT indicates that the <br /> material does not meet specified requirements for density, water content, or <br /> lift thickness, the EARTHWORK CONTRACTOR shall terminate material <br /> placement until corrective measures are taken at the EARTHWORK <br /> CONTRACTOR's sole expense. Corrective measures could include, but are <br /> not limited to, scarifying and recompacting of material or removal of <br /> material that does not meet the requirements of these Specifications. <br /> E. Protection: <br /> 1. The clay earthfill shall be protected from any contamination which increases <br /> the hydraulic conductivity. Any contaminated material shall be removed <br /> and replaced at no cost to the OWNER. <br /> 3.10 COARSE GRAVEL MATERIAL <br /> A. General Requirements: Coarse Gravel shall be placed around leachate collection <br /> pipe and in sump area as shown on the Construction Drawings and should be fully <br /> encapsulated by geotextile. <br /> B. Coarse Gravel Placement: <br /> 1. The HDPE geomembrane lining underlying the Coarse Gravel shall be <br /> inspected and approved prior to placement of the Coarse Gravel. <br /> Forward Landfill WMU FU-14 <br /> 02300 18 EARTHWORK <br />