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amec <br /> foster <br /> wheeler <br /> Zephyr Gold USA Ltd. PAGE 5 OF 8 <br /> Dawson Gold Project SEC. NO.: <br /> Dawson Filtered Tailings Storage Facility SPECIFICATION 02777.0 <br /> Pre-feasibility Study <br /> TECHNICAL SPECIFICATIONS FOR DATE: (ORIGINAL) <br /> Fremont County, Colorado GEOTEXTILE 20-October-16 <br /> PROJECT NO.: 74201633 REVISION: A <br /> DATE: 20-Oct-16 <br /> • ASTM D4751 - Standard Test Method for Determining Apparent Opening Size of a Geotextile <br /> • ASTM D4833 - Standard Test Method for Index Puncture Resistance of Geomembranes and <br /> Related Products <br /> • ASTM D5261 —Standard Test Method for Measuring Mass per Unit Area of Geotextiles <br /> • ASTM D6241 — Standard Test Method for Static Puncture Strength of Geotextiles and Geotextile- <br /> Related Products Using a 50-mm Probe <br /> 1.5 DEFINITIONS <br /> Geotextile: A permeable geosynthetic material comprised of synthetic or natural fibers. <br /> Minimum Average Roll Value(MARV): Minimum of series of average roll values representative of geotextile <br /> provided. <br /> Sample: Portion of finished geotextile taken for testing. <br /> Overlap: Distance measured perpendicular from overlapping edge of one sheet to underlying edge of <br /> adjacent sheet. <br /> 2.0 DELIVERY, STORAGE, AND HANDLING <br /> 2.1 PACKING AND SHIPPING <br /> Geotextile shall be supplied in rolls wrapped in relatively impermeable and opaque protective covers, with <br /> straps for unloading. <br /> Geotextile rolls shall be marked or tagged with the following information: <br /> • MANUFACTURER'S name; <br /> • Product information; <br /> • Roll number; <br /> • Batch or lot number; and <br /> • Roll dimensions. <br /> CONTRACTOR shall ensure that geotextile rolls are properly loaded and secured to prevent damage during <br /> transit. CONTRACTOR shall protect geotextile from excessive heat, cold, puncture, cutting, or other <br /> S:\ZEPHYR MINERALS\DRMS MINE APPLICATION\02777-GEOTEXTILE.DOCX <br />