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amec <br /> foster <br /> wheeler <br /> Zephyr Gold USA Ltd. PAGE 5 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 /> • Roll number; <br /> • Batch or lot number; and <br /> • Roll dimensions. <br /> Geomembrane delivered to the project shall be protected by a relatively impermeable and opaque <br /> protective cover, with individual straps for unloading. <br /> 1.3.2 STORAGE AND PROTECTION <br /> MANAGER will provide area for on-site storage of the geomembrane rolls from time of delivery until <br /> installation. <br /> The storage and handling of the materials is the responsibility of CONTRACTOR from the time the materials <br /> are manufactured until the time the completed installation is accepted. CONTRACTOR is responsible for <br /> preparing the storage location and for the protection of the materials from the elements (e.g., ultraviolet <br /> light, moisture, temperature, etc.). After CONTRACTOR has removed material from storage, <br /> CONTRACTOR shall protect geomembrane from puncture, dirt, grease,water, moisture, mud, mechanical <br /> abrasion, excessive heat or cold, and other sources of damage. <br /> CONTRACTOR shall preserve integrity and readability of the geomembrane roll labels, and store the rolls <br /> such that CONSTRUCTION MANAGER and CQA MONITOR have access to the package slips or roll <br /> labels for each roll to verify roll acceptance. <br /> The geomembrane rolls shall be stored on a prepared surface (not wooden pallets) and should be stacked <br /> at a height no higher than that at which the lifting apparatus can be safely handled (typically no higher than <br /> four rolls). <br /> 1.4 SITE CONDITIONS <br /> 1.4.1 GEOMEMBRANE DEPLOYMENT <br /> Do not proceed with deployment at an ambient temperature below-14°F or above 100°F unless otherwise <br /> authorized, in writing, by MANAGER, ENGINEER, and CONSTRUCTION MANAGER. Temperature <br /> monitoring shall be performed by the CQA MONITOR. <br /> Do not deploy during precipitation, in the presence of excessive moisture (e.g., fog, dew), in an area of <br /> ponded water, or in the presence of excessive winds. <br /> S:\ZEPHYR MINERALS\DRMS MINE APPLICATION\02776-GEOMEMBRANE.DOCX <br />