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REP10490
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REP10490
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Entry Properties
Last modified
8/24/2016 11:39:56 PM
Creation date
11/27/2007 12:26:45 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Report
Doc Date
1/14/1997
Doc Name
WEST PIT FILL INSPECTION CERTIFICATION
Permit Index Doc Type
Waste Pile/Fill Report
Media Type
D
Archive
No
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/~ Kennecott ~~~ ~~~~~~~~~~~~~~~~ <br />/~ . Energy , ~_. Memorandum <br />Co(oa-yo cool GrmPony L.P. `' <br />FOR: Jim Kiger <br />West Pit Fill Inspection Certification <br />January 14, 1997 <br />On December 30, 1996, I inspected the area in which the West Pit Excess Spoil <br />Fill is being constructed. The purpose of this inspection was to observe the <br />surface rock drain that borders the 3:1 Excess Fill Slope, inspect the topsoil <br />placement, inspect the placement of the water monitoring well on the 6950 <br />bench, inspect the re-vegetation on the fill surface and to inspect the fill <br />for areas of water seepage or surface drainage, inspect the final grade slopes <br />below the 7250 elevation of the Excess Fill Slope, and to satisfy the <br />requirements of CDMG Rule 4.09.1(lla). <br />During the inspection it was observed that the condition of the fill was <br />good, no seeps or springs were noted. The collection ditches at the 6950, <br />7050 and 7150 elevations all were in relatively good shape. At the toe of the <br />fill approximately 1 gallon per minute of water was running from underneath <br />the fill, 1-2 gallons per minute from under the west side of the toe drain, no <br />water was running from the lateral rock drain placed during the summer to <br />drain the pond slide area and no water was running down the surface drain. <br />I am a mining engineer, registered in the State of Colorado, and <br />experienced in the construction of rock and earthen projects for the purposes <br />of mining activities. <br />To the best of my knowledge, based on my professional expertise the West <br />Pit Excess Spoil Fill has thus far been constructed in conformance with the <br />prudent state-of-the-art methodology for earth and rock fill construction, as <br />specified in pages Ia-2 through Ia-4, Exhibit 19Ib, and other applicable <br />requirements of the approved permit documents, a portion of CDMG Permit C-81- <br />019. 111111111!///j/// <br />nfl RCA._//i_ . <br />:ephen R. Hinkemeye~/ <br />~ Registered P.E. 25436 <br /> <br />
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