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ERC CC&V Water Balance User's Manual <br /> November 2019 <br /> Additional components included in this water balance model are runoff from pit and overburden areas, <br /> water requirements for augmentation, water demand at the various non-VLF ponds at the site,discharge <br /> from the Carlton Tunnel,and offsite water needed for augmentation and makeup.A schematic of the flow <br /> paths simulated in the water balance analysis is shown in Figure 1. For the purposes of this water balance, <br /> some elements in the schematic have been simplified or removed,such as the crusher and mill tank,which <br /> are assumed to output approximately the same quantity of water as they receive, and the mill and <br /> adsorption-desorption-recovery (ADR) plants, which have been simplified to only represent the amount <br /> of leach applied to the VLFs. Water demands at smaller facilities such as office buildings, shops, labs, etc. <br /> have been assumed to be negligible compared to the overall water flows between facilities and were <br /> therefore excluded from the analysis per CC&V's direction. <br /> Figure 1 —Water Balance Model Flow Path Schematic (Precipitation and Evaporation on the VLFs, Pits, <br /> Overburden Storage Areas, and Ponds are Not Displayed in the Figure) <br /> Grassy Valley Augmentation Dump 4 Pond <br /> Mill Tank Mill <br /> Crusher ADR2 VLF2 <br /> Reservoirs <br /> Ames Pond Pumpback Bldg <br /> 10-Way Valve Area ADR1 VLF1 <br /> Arequa Gulch Augmentation Pumpback Bldg <br /> Pits/ <br /> Overburden <br /> WRSF/Local Groundwater Carlton Tunnel Discharge <br /> Model Structure <br /> When opening the model, there are five containers visible (shown in Figure 2). The user interface for the <br /> water balance model is found within the yellow "Dashboards" container. The "Dashboards" container <br /> includes seven individual dashboards.The first dashboard is where the user enters data and the remaining <br /> six show various results from the simulation.The tabs at the top of the dashboard are activated by running <br /> 2 <br />