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2003-05-29_REVISION - M1977208
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2003-05-29_REVISION - M1977208
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Entry Properties
Last modified
6/16/2021 6:08:25 PM
Creation date
11/21/2007 12:08:32 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1977208
IBM Index Class Name
Revision
Doc Date
5/29/2003
Doc Name
Technical Revision Narrative
From
Banks and Gesso LLC
To
DMG
Type & Sequence
TR2
Media Type
D
Archive
No
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~~ Banks and Gesso, LLC <br />~~ <br />RECEIVE® <br />MAY 2 9 2003 <br />Oiuision ~f Minerals and Geology <br />Erica S. Crosby <br />Environmental Protection Specialist <br />Division of Minerals and Geology <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />RE: CEMEX, Inc Lyons Mine Permit No. M-1977-208 <br />Technical Revision Narrative <br />720 Kipling St.,Suite117 <br />Lakewood, Colorado 80215 <br />(303)274-4277 <br />Fax (303) 274-8329 <br />www. banksandgesso.com <br />May 28, 2003 <br />R~a <br />CEMEX, Inc. requests a Technical Revision to their Mine Permit No. M-1977-208 to <br />allow an on-site disposal area to dispose of concrete rubble for use at the close and <br />demolition of the concrete plant. The following narrative describes the disposal area. <br />Guidance for this TR was provided by the Division in a letter dated April 7, 2003 <br />indicating the information that was to be included in this narrative. That letter is included <br />with this submittal for reference. <br />Narrative <br />This narrative accompanies a request for a Technical Revision (TR) to M-1977-208 <br />(Cemex, Inc. Lyons Cement Plant). The TR adds to the permit a proposed on-site <br />disposal area for the disposal of concrete rubble after the demolition of the concrete <br />plant, The attached On-Site Disposal Cell Map indicates the current plant layout, <br />existing topography, and proposed disposal cell area. <br />Disposal Site <br />The location of the disposal site is shown on the On-Site Disposal Cell Map. The site is <br />located south and west of the existing plant site. The footprint encompasses <br />approximately 10 acres. The material will be placed in a wedge shape against the <br />existing hogback as shown by the cross section on the On-Site Disposal Cell Map. The <br />maximum thickness of the material along the hogback will be 45 feet. The disposal area <br />will taper to a thickness of 20 feet. The average thickness of debris placement will be <br />approximately 30 feet. <br />The liner will be either a geosynthetic liner or athree-foot thick clay liner meeting the <br />permeability requirements of 1x10"e cm/sec. A 3-foot thick layer of cover material will be <br />placed over the liner to protect the liner during the debris placement process. Cross <br />sections on the attached map provide additional information. <br />
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