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4. The hydraulic conductivity of the GCL shall be no greater than 5 x 10-9 cm/s, when measured in a flexible wall permeameter, under an effective confining stress of 5 psi (35 kN/m2). Hydraulic conductivity tests shall be performed by the Manufacturer at a frequency of I test every 100,000 square feet 5. The peel strength of the internally reinforced GCL must equal or exceed 15 lb/in (MARV) when measured by ASTM D4632. Peel strength tests shall be performed by the Manufacturer at a frequency of 1 test every 40,000 sf of finished GCL. The test results shall be provided to the QA/QC CONSULTANT. 6. The bentonite will be adhered to the backing material in a manner that prevents it from being dislodged when transported, handled, and installed in a manner prescribed by the manufacturer. The bentonite will be held in place by mechanically connecting of the fiber or filaments of the carrier layers. The method used to hold the bentonite in place will not be detrimental to other components of the liner system. A minimum of 1 ib/ft2 of bentonite(wet weight) will be present in the geosynthetic clay liner, when measured at a water content, by weight, of 12 percent. Water content of the bentonite shall not be greater than 12 percent, by weight, at the time of installation. 7. The interfacial and internal shear strength of the side slope liner system will be tested per ASTM D6243 and ASTM D5321 to post-peak conditions. Post-peak conditions are defined as the point at which the applied shear force remains constant with increasing shear displacement. The minimum post-peak shear displacement shall be 3 inches. In testing, upper or lower boxes can be interchanged depending on the type of equipment. Submit one each, 6 inch by 6 inch, coupons of geomembrane and GCL from the rolls of material that were used for each test. Testing shall be performed such that orientation of materials being tested (i.e. which side is up) is consistent with orientation of installation in the field. a. The QA/QC CONSULTANT shall perform the shear strength testing per ASTM D6243 for the proposed liner system components (GCL vs. geomembrane and geocomposite drainage net) in accordance with the following: 1) Measure initial moisture content of the bentonite component of the GCL. 2) Measure the asperity of the geomembrane [GM-12]. 3) Hydrate GCL under 125 psf normal stress for 20 hours with distilled water. FORWARD LANDFILL 4 02777 GEOSYNTHETIC CLAY LINER(GCL)