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A photographic record of embankment and disposal area development <br /> will be started before deposition, and will be continued at regular <br /> intervals during the, life of the facility. <br /> 2.0 Monitoring Plan <br /> The monitoring plan may be divided into six basic areas; initial <br />�— tailings construction monitoring, monitoring of the disposal area and <br /> embankment, monitoring of elements which affect the mass and water balance <br /> of the disposal area, monitoring of the hydrologic <br /> system the <br /> Project, monitoring of pit inflows and monitoring inresponseto aa spill . <br /> s <br /> 2.1 Initial Construction Monitoring <br /> After construction of the Phase I embankment, a series of <br /> monitoring instruments will be installed in the embankment crest. <br />�- These instruments are designed to provide data on the performance <br /> of the embankment after the embankment is constructed. The <br /> monitoring system consists of surface settlemen <br /> t sensors and <br /> piezometers placed at selected locations. The piezometers would be <br /> ■ located so as to detect the development of phreatic head within the <br /> drainage blanket and embankment fill . The settlement sensors will <br /> provide data on the vertical surface displacements of the embankment <br /> and give some indication of its 'en•masse, consolidation <br /> characteristics. <br /> Post installation baseline data from the instruments will be <br /> 1 obtained prior to operation of the facilities. After <br /> commencement <br /> of operation, readings of all instruments will be taken once each <br /> month until trends are established. At that point BMR will submit <br /> a technical revision to the MLRD showing the established trends and <br /> requesting a reduction in the frequency of readings. All results <br /> will be recorded and plotted. Additional readings will be taken <br /> whenever the rate or method of operation is modified. <br /> 0 <br /> 71 01 322 <br />