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amec <br /> foster <br /> wheeler <br /> Zephyr Gold USA Ltd. PAGE 6 OF 13 <br /> Dawson Gold Project <br /> Dawson Filtered Tailings Storage Facility SPECIFICATION SEC. NO.: <br /> 01400.2 <br /> Pre-feasibility Study TECHNICAL SPECIFICATIONS FOR DATE: (ORIGINAL) <br /> Fremont County, Colorado GEOSYNTHETICS CONSTRUCTION QUALITY 20-October-16 <br /> PROJECT NO.: 74201633 ASSURANCE(CQA) PLAN REVISION: A <br /> DATE: 20-Oct-16 <br /> EARTHWORKS CONTRACTOR:The Earthworks CONTRACTOR, also referred to as CONTRACTOR, is <br /> responsible for proper delivery and placement of earthwork components as outlined in the project <br /> SPECIFICATIONS. <br /> 3.0 DEFICIENCIES <br /> When deficiencies (items that do not meet SPECIFICATIONS or DRAWINGS) are discovered, the CQA <br /> MONITOR(S) will immediately determine the nature and extent of the inadequacy and notify the <br /> INSTALLER or CONTRACTOR. If unsatisfactory test results identify a failure to meet the <br /> SPECIFICATIONS, additional tests will be performed to define the extent of the deficient area. <br /> The INSTALLER or CONTRACTOR shall correct the deficiency to the satisfaction of the CQA <br /> MONITOR(S). If CONTRACTOR is unable to correct the problem, the CQA MONITOR(S) will notify the <br /> ENGINEER and MANAGER who will assist in problem resolution. <br /> Upon completion of remedial work, the CQA MONITOR(S) shall retest for compliance with the project <br /> SPECIFICATIONS and the ENGINEER and MANAGER will approve the corrected deficiencies. The <br /> questionable zone will have acceptable test results prior to any additional related Work being performed by <br /> INSTALLER or CONTRACTOR. All retests and related documentation shall be recorded by the CQA <br /> MONITOR(S) and provided to the ENGINEER for inclusion in the Construction Completion Report. <br /> 4.0 GEOSYNTHETICS CONSTRUCTION QUALITY ASSURANCE <br /> Construction of the Dawson FTSF and related structures shall be in accordance with the DRAWINGS and <br /> SPECIFICATIONS. A CQA monitoring and testing program shall be implemented to ensure construction <br /> compliance by the INSTALLER and CONTRACTOR. The CQA testing program shall consist of <br /> construction testing of materials used in the geosynthetics components of the Dawson FTSF and other site <br /> construction. <br /> The types of geosynthetics used in the construction of the Dawson FTSF and other site construction include <br /> polyethylene pipe, geomembrane, and geotextile. These geosynthetics are defined in the project <br /> SPECIFICATIONS. Prior to and during construction, these geosynthetics shall be sampled and tested to <br /> determine if they meet project SPECIFICATIONS. All tests shall be performed in a geosynthetics laboratory <br /> approved by the ENGINEER and MANAGER. <br /> S:\ZEPHYR MINERALS\DRMS MINE APPLICATION\01400.2-GEOSYNTHETICS CQA.DOCX <br />