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<br />3.0 CLAY LINER -FILL AREA CONSTRUCTION <br />3.1 Liner Design <br />The liner and keyway design is shown on the cross-section drawing, see attached. <br />3.2 Liner Fill Mixture <br />The mixture for the liner fill will consist of inorganic mixtures of sandy, silty clays to <br />clayey, silty sands and shale substrate. The material shall be free oforganic matter, <br />debris, frozen material and deleterious material. Liner fill material will be classified SC- <br />CL according to the Unified Soil Classification System with a minimum of 20 percent <br />passing a #200 sieve. The materials will be obtained from on-site excavations, <br />approved borrow areas or other sources as approved by the Engineer. <br />NOTE: If two or more acceptable materials are required to construct the liner fill, the <br />Applicant intends to place and compact the materials separately, such that no blending <br />operations are required or special testing is required. Only proper scarification <br />procedures between lifts, as specified below, will be required. <br />A. Fines -liner fill material shall contain at least 20 percent fines defined as the <br />percentage of material passing the No. 200 sieve, on a dry weight basis. <br />B. Plasticity Index -liner fill material shall have a plasticity index of 10 percent or <br />greater, but shall be no higher that 30 percent to avoid hard chunks and sticky <br />clods. <br />C. Percentage of Gravel -liner fill material should generally not exceed 10 percent <br />gravel (material retained on No. 4 sieve). <br />D. Stones and Rocks -rocks larger than 2" shall not be permitted in the liner <br />material. <br />