WebTSF material thicknesses were estimated annually (1996 to 2024) as the difference between the pre-mining and TSF surface topography. 2.4 Water Balance Estimates The water balance components of the TSF incorporated into the water balance model are shown in Figure 2. The methods used to calculate or estimate flux rates for the various components are Webhydraulic conductivity of material within the TSF. A is the area of the TSF (12 E06 m 2). ΔH is the average head loss across the thickness of the TSF (10 m) given by the difference between the constant head at the top of the TSF in the 3D model (1590 m) and the head contour value at the base (1580 m) as shown in Figure 35 of Appendix 2.7.2.4A-C.
Report on Mount Polley Tailings Storage Facility Breach Appendix …
WebPrepare a water balance for a tailings storage facility (TSF) for two consecutive years on a monthly basis during operation of a gold mine . Calculate all values in cubic meters (m3). The project and site information are as follows: a. Daily production rate (solids of tailings) – 20,000 tpd b. Tailings slurry deposited at 48 percent solids c. WebA general water balance equation is: P = Q + ET + ΔS. where P is precipitation Q is streamflow ET is evapotranspiration ΔS is the change in storage (in soil or the bedrock / groundwater). This equation uses the principles of conservation of mass in a closed system, whereby any water entering a system (via precipitation), must be transferred into either … dutch sugar cookie recipe
Example Tailings Storage Facility Model – GoldSim Help Center
WebExecutive Summary. Water balance estimation is an important tool to assess the current status and trends in water resource availability in an area over a specific period of time. Furthermore, water balance estimates strengthen water management decision-making, by assessing and improving the validity of visions, scenarios and strategies. WebIf you want to view the VB code, you can open the Visual Basic Editor in Excel (Tools>Macro>Visual Basic Editor) or just press Alt+F5. On the last sheet, sheet “Salt Balance”, the salt balance is calculated and reported on in the blue cells. The salt balance includes both the rainwater falling into the pits, as well as the groundwater that ... WebWater quality predictions TSF supernatant water quality (pH and sul-phate as examples) based on the 50 th percentile ˆ ows from the TSF water balance is shown in Figure 3. During mine operation until 2024, supernatant pH ˆ uctuates around values of pH 8-9, due to lime introduced with the tail-ings slurry. A˚ er closure in 2024, pH rapidly evapo- in a flight of 2800 km an aircraft was slowed