My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
INSPEC06286
DRMS
>
Back File Migration
>
Inspection
>
INSPEC06286
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 9:02:24 PM
Creation date
11/18/2007 8:25:58 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
Inspection
Doc Name
MINERALS PROGRAM INSPECTION REPORT
Inspection Date
11/2/1994
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
7
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
(Page 3) <br />MINE ID # OR PROSPECTING ID # M-80-244 <br />INSPI:CTZON DATE 11/2/94 INSPECTOR'S INITIALS JAP, MBL S WY-F <br />three "pushes" had been completed by the dozer operator. He radioed the appropriate <br />personnel -~o commence an inquiry into whether the location could be reestablished. <br />Pad #2 - Drain Cover Material Source <br />We next traveled to pad #2 to examine the area from which the drain cover material is <br />excavated. The upper lift of pad #2 spent ore is being excavated, placed into trucks and <br />hauled to heap leach pad #1, where it is placed onto the geomembrane liner to serve as <br />protective drain cover material. An approximately 250 foot long cut face ie exposed. we <br />examined t:he face and discerned one central portion of the exposed face appeared to <br />contain a concentration of oversize material. The remainder of the material appeared to <br />contain less oversize. Jim suggested that it would be appropriate recharacterize the <br />source materials in order to quantify the apparent variance by zone. A loader merely <br />excavates the crushed material and places it into haul trucks. No selective control has <br />been exercised to avoid zones containing concentrations of oversized material. Jim <br />Pendleton expressed his opinion that QA control by an appropriately qualified professional <br />might significantly reduce the oversize material being delivered to the pad and thereby <br />decrease the required selective manual gleaning. If necessary, the rejected material <br />could be s~:reened to remove the oversize material. <br />Upper Are qua Gulch - Highway 67 Relocation Footprint <br />We next drove to the area of upper Arequa Gulch above the up gradient boundary of heap <br />leach pad #1. A berm is being placed in this area to carry the relocated Highway 67 <br />across Arequa Gulch. The three underdrain pipes and their bedding backfill are being <br />extended beneath this berm footprint. The three pipes and their backfill had been <br />completed. It remains to pour a thrust block foundation upon which a riser will be placed <br />to extend the solid 24" underdrain pipe vertically to the surface drainage sump up <br />gradient from the relocated highway. The 24" perforated pipeline is capped at this <br />location. And the 4" solid pipeline ie temporarily capped awaiting extension to the <br />spring box which will be constructed below the Arequa Gulch spring when it is excavated. <br />The Upland Diversion Ditch Culvert <br />We drove a location just south of the crushers where we observed the excavation for the <br />culvert which carries the upland diversion beneath the crusher pad and the conveyors. The <br />upland div~=rsion ditch is largely excavated to rough grade. The culvert beneath Highway <br />67 remains to be placed. <br />The Crusher Truck Turnaround Heach <br />CCaVG had been cited earlier for a regarding topsoil salvage at the toe of the crusher <br />truck turnaround berm. General excavation fill being placed to construct the truck <br />turnaround berm east of the crushers had cascaded down onto and covered topsoil at the toe <br />of the berm. John Hardaway stated that the contractor had since excavated and recovered <br />as much of the topsoil as possible. We examined the area in question and agreed with <br />John's ass~artion. <br />Close-Out Conference <br />During our close-out conference we discussed resolution of our concerns regarding the size <br />gradation of the drain cover material. With John's participation we defined the following <br />topics of concern. We anticipate CC6VG will address these topics within the next several <br />days. <br />
The URL can be used to link to this page
Your browser does not support the video tag.