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2003-09-03_REVISION - M1985029
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2003-09-03_REVISION - M1985029
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Entry Properties
Last modified
6/15/2021 5:44:31 PM
Creation date
11/21/2007 12:48:52 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1985029
IBM Index Class Name
Revision
Doc Date
9/3/2003
Doc Name
Amendment Application
From
Ducommun Business Trust
To
DMG
Type & Sequence
AM4
Media Type
D
Archive
No
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•i <br />L_~ <br />li <br />which then immediately enters Highway 9. Access 7 is an old access immediately west of the town <br />of Alma. There was a lazge metal culvert in place to cross the River at this location, but the road <br />above this culvert has been washed out prior to 1977. This access has not been used in years. No <br />accel/decel lanes have been required at any of the existing accesses. Since the gold mining <br />operation does not produce much off site traffic and since the gravel mining operation is not <br />planning to increase production over the past 3-4 yeaz period, no new accel/decel lanes aze needed <br />for access. <br />All access roads aze compacted dirt or gravel and approximately 30' in width. Water or magnesium <br />chloride will be applied to all roads (primarily by the gravel mine personnel) to keep dust down <br />while mine vehicle traffic occurs. <br />1.4 Topsoil Handling for Gold Operation <br />The total disturbed azea for the gold mining operation is 84.5 acres. Of this amount, 36.5 acres were <br />disturbed pre-1977 and no topsoil was salvaged. Approximately 48 acres of new disturbance will <br />occur if all mine cuts are disturbed. The salvageable soil for the undisturbed areas is approximately <br />3-9 inches. An average of 4.5" thickness is assumed for the topsoil volumes from the undisturbed <br />azeas. <br />The Ducommun Business Trust will do everything possible to reclaim old pre-law azeas, but the <br />fine material that will be used to replace the lost [opsoIl can only be obtained from future <br />operations. Since the Trust cannot guazantee that future operations will be in place for the years <br />shown in this application, the Tmst cannot guazantee that all previously disturbed azeas will be <br />topsoiled. The Trust can guazantee that the operation will salvage all substitute fine material <br />possible from all future operations. In order to help reclaim past mining azeas, substitute topsoil will <br />be obtained from sediment pond cleanout, pit pumping pond cleanout and slurry pond cleanout <br />from the prep plant. This material will be silty fine material and will be amended with fertilizer and <br />mulch for reclamation. In order to place 3" of this material on the azeas from pre-law disturbance <br />less pond areas left for the fmal reclamation, (36.5 acres- 4.4 acres pond areas for reclamation = <br />32.1 acres), approximately 12968 cY is needed. Assuming 10 years of topsoil salvage, 1297 cy is <br />Alma Placer 7/03 <br />17 <br />
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