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Western Gravel E &P Waste Disposal Facility October 2011 <br />CQA /QCP Page 15 of 19 <br />GEOSYNTHETIC CLAY LINER (GCL) MQA <br />GCL PROPERTY <br />TEST METHOD <br />TEST FREQUENCY <br />BENTONITE <br />Swell Index <br />ASTM D5890 <br />1 test per 100,000 ft <br />Fluid Loss <br />ASTM D5891 <br />" <br />COMPOSITE <br />Peel Strength <br />ASTM D6496 <br />1 test per 100,000 ft <br />Grab Strength/Elongation <br />ASTM D4632 <br />" <br />Bentonite Mass /Unit Area <br />ASTM D5993 <br />" <br />Permeability /Flux <br />ASTM D5887 <br />" <br />GCL CONFORMANCE <br />TESTING CQA <br />Moisture Content <br />ASTM D2216 <br />1 test per 100,000 ft <br />Bentonite Mass Per Unit Area <br />ASTM D5993 <br />" <br />Index Flux <br />ASTM D5887 <br />" <br />Chemical Compatibility <br />ASTM D6141 <br />1 test per source <br />Construction: <br />• Prior to installation, a preconstruction meeting must be held. At a minimum the client, CQA <br />Engineer and the installer must be present and the installer will provide the CQA Engineer with seam <br />layout drawings. A seam numbering system will be agreed upon by the installer and the CQA <br />Engineer that is compatible with the GCL roll numbering system. Copies of warranties for the <br />manufacturer and installer must also be provided to the CQA Engineer at this time <br />• The CQA engineer and GCL installer will observe, inspect and approve the completed foundation <br />layer just prior to installing the GCL <br />• CQA Engineer will examine GCL rolls upon delivery and note any damage to covering, as well as <br />possible damage to the product itself requiring further inspection. CQA Engineer will also verify the <br />conditions at which the GCL is being stored on the project site <br />• CQA Engineer will clearly mark rejected rolls due to severe flaws and any minor repairable flaws <br />• CQA Engineer will observe and inspect the materials as they are unrolled and placed upon the <br />foundation layer. Areas requiring repairs will be marked in the field by the CQA Engineer. Repairs <br />shall be made using a patch from another piece of GCL secured in place with a 12 inch wide <br />minimum overlap in all directions. Dry bentonite powder will be placed between the overlapped <br />materials. Depending on location of patch, additional measures may be required to keep patch in <br />place <br />• GCL panels shall be placed such that the longitudinal panel seams are running parallel to direction of <br />slope. All GCL panels shall lay flat with no wrinkles or folds <br />NWCC INC. <br />