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Discussion <br />The AGVLF contains four PSSAs wherein solution applied to the pad surface collects and is <br />pumped to the recovery plant and then returned to the heap. The Phase 1 PSSA is part of the <br />original VLF plan; the others were added during expansions over the life of the heap. Figure 1 <br />shows the layout of the drainage areas along with a schematic of the relative PSSA elevations. <br />Pregnant Solution Storage Area <br />0 500 1000 1500 h <br />0 150 300 450 m <br />Figure 1 — July 2015 topography of the AGVLF. PSSA areas and pump locations are indicated, <br />respectively, by shading and crosshairs. Inset shows relative PSSA elevations — NOT TO <br />SCALE. <br />