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PERMFILE128342
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PERMFILE128342
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Entry Properties
Last modified
8/24/2016 10:25:28 PM
Creation date
11/25/2007 5:59:43 PM
Metadata
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Template:
DRMS Permit Index
Permit No
M1988112
IBM Index Class Name
Permit File
Doc Date
11/8/1988
Section_Exhibit Name
EXHIBIT D MINE PLAN
Media Type
D
Archive
No
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<br />first stage has been designed to store approximately two years <br />of heap leach ore production. Stages 2, 3, 4, 5, and 6 have <br />' each been designed to store approximately one year of heap <br />leach ore production. The expanded pad areas for each of the <br />' stages are summarized below. <br />' Stage Pad Area (acres <br />1 16.1 <br />' 2 8.2 <br />3 3.9 <br />4 6.8 <br />' 5 4.4 <br />6 3.6 <br />' Total 4~Q <br />Each of the leach pad stages will be connected to the <br />previous stage for both surface flows on top of the pad liner <br />and possible flows in the secondary recovery system. The <br />' surface flows will drain from one stage to another through <br />spillways installed in the interstage berms, and ultimately <br />' into the pregnant pond. The secondary recovery systems between <br />stages will also be connected in these spillways to allow <br />' leakage to flow to the recovery sump in Stage 1. <br />t The pad base will consist of reworked and compacted <br />native soils with the surface fine-graded to the slopes and <br />elevations shown in the drawings. Should areas of the compacted <br />t surface of the pad base be unsuitable for liner placement, a <br />one-ft minimum layer of sandy alluvium will be spread, Sraded, <br />' and compacted prior to liner placement in those areas. For a <br />complete discussion of foundation preparation see Appendix N, <br />' Technical Specifications. <br />' A minimum three-ft high perimeter berm is provided around <br />the entire perimeter of the lined area. Directly inside this <br />berm will be a perimeter solution ditch to catch any flow which <br /> <br />' D-48 <br />
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