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<br />~ i <br />It is further ~-^^^^~' that the working ponds will ret~~iro 100,000 <br />gallons each as working voltmies and that the eAlELL33ency ponds will <br />ra~ure maintenance of a 40,000 gallon inventory. 'Ihe m~xim~m <br />acc~mwr9 recovery plant dean-time is one operating day, and it is <br />assumed that excess solution will be kept in the barren pond <br />inventory to permit spraying during down-time. <br />'Ihe overall required pord storage capacity includes the <br />catq~onents itemized below: <br />7bta1 RieOl~irs~rl IY=d Capacity (gal.) -1989 Season <br />Work]Ilg Pond Irrveritory: <br />Working Volume: 400,000 <br />One Day Spraying Requirement: 1,320,000 <br />(20 hours @ 1100 GPM maximum) <br />F]resgency Furrl Inventory: 80,000 <br />Solution Surge Capacity: <br />Precipitation: <br />Day 1-6 (@.1"/day): 467,000 <br />Cay 7 (100-year, 24-hour Max.): 2,727,000 <br />Heap De-saturation*: 8.070.000 <br />7bta1 (gallons): 13,064,000 <br />1989 crvsh/haul/spray Plans require up to a peak of an <br />estimated 807,000 C6T of rock to be saturated at any one time <br />(both old rock and new rock) on combined Fads No. 3 aryl No. <br />4. <br />'Ihe 1987 enlarged Pad No. 3 pond system now has a total capacity <br />of about 7.1 million gallons. Pad No. 4 pond system volume totals <br />6.3 million gallons to the gravity overflow feeding the Pad No. 3 <br />Fond System. 4Yre total volumes of 13.4 million gallons (both to <br />1' freeboard in each pord set) is in excess of the required 13.1 <br />million gallons ccsnbined capacity. Note also that a separately <br />calculated set of values for the Pad 3 system alone (which cannot <br />gravity feed to Pad 4 pond system) shows a required 5.28 million <br />gallons required capacity ca[q~ared with the installed 7.1 million <br />gallons. <br />4 <br />