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<br />2.2 Disoosal Area and Embankment Svstem <br />During operations, the settlement sensors will be checked on <br />a monthly basis and adjustments, if required, in subsequent lifts <br />will be made on the basis of the on-going monitoring program. <br />Monitoring will include quarterly sampling of tailings to <br />determine gradations, in-place densities, and deposition angles. <br />Density control tests will be performed on the tailings sand <br />deposited in the disposal area to verify that deposition obtains the <br />required density. After a trend has been established in i;he tailings <br />deposition testing, BMR will submit a technical revision to the <br />Division showing the trends and requesting a reduction in the <br />required monitoring. <br />Following establishment of a beach of tailings upstream of the <br />embankment and prior to construction of subsequent embankment raises <br />a specific study of tailings affected by the raises will be <br />performed. This study will include a determination of inplace <br />density, degree of saturation and material gradation for evaluation <br />of the structural integrity of the tailings under static and seismic <br />induced loading. <br />Monitoring of the flow site and quarterly sampliing of the <br />seepage from the drain system at the base of the tailings will be <br />performed. A plot of the rate of seepage over time will be <br />maintained and compared to the predicted rate. Chemical an alvsis <br />of the collection oond seeoage on a quarterly basis for the <br />parameters identified in Table G.1-2 of the aoproved aer~mit will be <br />performed. In addition, the leak detection system of the collection <br />pond will be monitored for any water weekly during initial six month <br />start-up and monthly thereafter. <br />2.3 Mass and Water Balance Monitoring <br />Each of the elements used in the evaluation of the mass and <br />