Laserfiche WebLink
.. <br />DRAVO CORPORATION <br />M7354 - HOMESTAKE MINING CO. <br />PITCH PROJECT <br />March 11, 1980 <br />Design Criteria for Uranium Tailings Dam & Reservoir at Site "A" <br />1.0 Reservoir Volume Requirements <br />1.1 Tailings Quantity - 600 tons per day fora 25-year life based on 365 <br />days of operation per year. 3$ZV ~-~ `.2 t•.A`tOS, <br />1.2 Density of tailings - 65 pcf (per Chen & Associates). <br />1.3 Surcharge capacity C/Yv~, a-•~ ~T...t.«. ~L ~~ D"~ <br />.1 Provide for a Probable Maximum Flood (PMF) series preceded or <br />followed by a 100-year flood, assuming a pool elevation equiva- <br />lent to the average annual runoff (per NRC Guide 3.11). <br />1 PMF series is defined as comprising two floods: the PfRF <br />and the flood equivalent to about 40Y of the PMF and about <br />3 to 5 days prior to the occurrence of the main flood (per <br />NCR Guide 3.11). <br />2 The PP1F is defined as the flood that may be expected from <br />the most severe combination of critical meteorlogic and <br />hydrologic conditions that are reasonably possible in the <br />region (per NRC Guide 3.11). <br />3 100-year flood is assumed to be a 100-year - 24-hour storm. <br />