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Prior to tailings deposition, an operator's manual will <br />• be written which will explain the general design criteria and <br />th <br />k <br />id <br />ti <br />d <br />iti <br />l <br />th <br />ti <br />iti <br />f <br /> ey cons <br />ons an <br />e <br />era <br />cr <br />ca <br />pa <br />ac <br />v <br />or proper <br />es <br /> operation. The operator's manual will contain standard forms <br /> for recording and reporting observations from visual <br /> inspections and data obtained from monitoring systems. A <br /> photographic record of embankment and disposal area development <br /> will be started before deposition, and will be continued at <br /> regular intervals during the life of the facilities. This <br /> record will be supplemented with as-built drawings certified <br /> by a registered professional engineer at the completion of both <br /> Phase 1 and Phase 2 construction. <br /> The initial construction monitoring will be performed <br /> in accordance with Section D.6.5 and the specifications <br /> presented in Appendix K, Technical Specifications. Surface <br /> water and groundwater monitoring are discussed in Exhibit G <br /> of the approved permit and as revised in Exhibit G of this <br /> amendment. The remaining areas which will be monitored are <br /> described in the following sections. <br />• <br /> D.6.7.6.2 Disoosal Area Svstem <br />Disposal area monitoring will include regular sampling <br />of tailings to determine gradations, lift thicknesses, in- <br />place densities and deposition angles. Density measurements <br />will be performed on the tailings deposited in the disposal <br />area to assess the degree of desiccation with time. <br />D.6.7.6.3 Mass and Water Balance Monitoring <br />Each of the elements used in the evaluation of the mass <br />and water balance will be recorded as frequently as necessary <br />in order to update the disposal area water and mass balance. <br />This information will include precipitation, evaporation, <br />pumping rates and hours, tailings levels, free water pool <br />volumes, seepage volumes, and slurry densities. In addition, <br />C <br />D-58 <br />