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amec <br /> foster <br /> wheeler <br /> Zephyr Gold USA Ltd. PAGE 17 OF 17 <br /> Dawson Gold Project SEC. NO.: <br /> Dawson Filtered Tailings Storage Facility SPECIFICATION 02776.0 <br /> Pre-feasibility Study <br /> TECHNICAL SPECIFICATIONS FOR DATE: (ORIGINAL) <br /> Fremont County, Colorado GEOMEMBRANE 20-October-16 <br /> PROJECT NO.: 74201633 REVISION: A <br /> DATE: 20-Oct-16 <br /> Each repair shall be non-destructively tested, except when CQA MONITOR requires a destructive seam <br /> sample be obtained from a repaired seam. Repairs that pass the destructive test shall be taken as an <br /> indication of an adequate repair. Failed tests indicate that the repair shall be repeated and retested until <br /> passing test results are achieved. <br /> Recording the results: <br /> • Daily documentation of all non-destructive and destructive testing shall be provided to MANAGER <br /> and CONSTRUCTION MANAGER by CQA MONITOR. <br /> • This documentation shall identify all seams that initially failed the test and include evidence that <br /> these seams were repaired and successfully retested. <br /> 4.9 CONFORMANCE TESTING <br /> During manufacturing of the geomembrane, CQA MONITOR will coordinate sampling and forwarding of <br /> samples to the Quality Assurance Testing Laboratory for testing to ensure conformance with the <br /> SPECIFICATIONS. <br /> Samples will be taken across the entire width of the roll and shall not include the first three feet(3 ft). Unless <br /> otherwise stated, samples will be three (3) feet long by the width of the roll. CQA MONITOR will mark the <br /> machine direction on the samples with an arrow. Unless otherwise stated, samples shall be taken at a <br /> frequency of no less than one per one hundred fifty thousand (150,000) square feet. As a minimum, the <br /> following tests will be performed to verify conformance to the design SPECIFICATIONS with minimum <br /> values specified in Article 2.0 of this Section: <br /> TABLE 02776.0-3 <br /> GEOMEMBRANE CONFORMANCE TESTING <br /> Property Test Method <br /> Thickness (mm) ASTM D5994/D5199 <br /> Formulated Density(g/cm3) ASTM D1505 <br /> Tensile Strength (Both yield and ultimate ASTM D6693, Type IV <br /> strength and elongation, as specified) <br /> Carbon Black Content (%) ASTM D4218 <br /> S:\ZEPHYR MINERALS\DRMS MINE APPLICATION\02776-GEOMEMBRANE.DOCX <br />