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t 8.0 QUALITY ASSURANCE PROCEDURES <br /> The quality assurance (QA) program for monitoring the construction <br /> of the leach pads and ponds shall be performed by the Engineer. The <br />' purpose of this program is to document the quality of the work completed <br /> and the extent to which the work is performed to the intent. of and as <br />' set forth in the specifications and permits for construction and <br />ti <br />f <br />f th <br />ili <br />i <br />Th <br />A <br /> opera <br />on o <br />e <br />ac <br />es. <br />t <br />e Q <br />tests and construction observations <br /> will be done a periodic basis. <br /> <br /> 8.1 Borrow Materials <br />1 <br /> Representative tests will be run on all borrow materials to <br />' establish the appropriate material characteristics by which the <br /> construction performance will be checked, and to determine that <br /> test data used in the design are representative of the borrow <br /> materials. Fill placement of borrow material may not t~egin until <br /> the testing has been performed. <br />1 <br /> Should it become necessary to change borrow areas, <br /> representative tests will be run on borrow materials 'n the new <br /> areas to be developed. Test results will be used to determine the <br />' suitability of new borrow material for use in the earthwork <br /> construction. It will be the Contractor's responsibility to notify <br /> the Engineer of changes in borrow source locations in advance of <br />' development to allow time for representative testing without unduly <br /> interrupting construction activities. Should the material prove to <br /> be unsuitable, such material shall not be used. <br />s <br />Representative tests shall be conducted for every 10,000 cu <br />yds of material used as fill, or when a change in material occurs <br />within the borrow area or stockpile. Representative tests for <br />granular material shall be run for every 5,000 cu yds of material <br />taken from borrow pits or stockpiles and used as fill. <br /> <br /> N- 29 <br /> <br />