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PERMFILE72345
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PERMFILE72345
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Entry Properties
Last modified
8/24/2016 11:21:54 PM
Creation date
11/21/2007 12:14:23 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2002004
IBM Index Class Name
Permit File
Doc Date
1/18/2002
Doc Name
Permit Application
From
GCC Rio Grande Inc
To
DMG
Media Type
D
Archive
No
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Exhibit D <br />• At night. <br />• Within 1,000 ft of a public road. <br />• -Without at least 2 ft of cuttings used in each hole to stem the shot. <br />6. The licensed blasting contractor will provide all supplies and <br />materials, as well as load and blast. shots. <br />Each panel will be designed to produce approximately 20,000 tons (+/-) of limestone <br />after soil and overburden have been removed. During the first five years, the average <br />annual panel is expected to be approximately 450 ft by 1400 ft. This is based upon an <br />average thickness of approximately 30 ft. The drilling pattern will usually be 12 ft x 15 ft <br />to a depth of the bottom of the limestone plus up to 6 ft of the Codell Sandstone at the <br />base. The actual total thickness is dependent upon limestone and sandstone quality. <br />The drill will be rigged with a dust collector and will use water to reduce dust emissions. <br />Each blast hole will be backfilled with drill cuttings and dirt at (east 2 ft from the surface <br />to prevent surface blast. Each blast hole will be approximately 4 to 6 inches in diameter. <br />The blasting agents and delay devices will be installed only by a licensed blasting <br />contractor. Prior to blasting, an inspection of the blast site will be made to ensure that no <br />persons are within the blast area, and the proper signals will be sounded. <br />Upon review of ait potential impacts to people, structures, water welts, animals and the <br />surrounding natural environment, Rio Grande has found no conditions that would prevent <br />safe operation of the proposed mining and blasting operation at the site. Rio Grande and <br />its parent company have a long history in other states of mining and rock blasting.on a <br />similar scale without incident. Known domestic and livestock wells are deep, located . <br />approximately 450 ft below the Ft. Hays Limestone unit in the Dakota Sandstone unit, <br />with steel casing used through the unit to be mined. With the use of time delays and <br />proper stemming of the blast holes, any dust, noise, and ground vibrations will not have <br />long-term effects on the environment. It should be noted that there exists only one <br />dwelling within one mile of proposed blasting and excavating. <br />The geologic unit being mined is the Ft. Hays Limestone that occurs at a very shallow <br />depth in the area to be permitted; thus, there will be no impact to groundwater. Extensive <br />core drilling. activities have encountered no signifcant amounts of water within the <br />surface rock to a depth of 100 ft. <br />CEMENT MANUFACTURING <br />The cement manufacturing facility will have a maximum production capacity of <br />approximately one million tons per year of portland cement products and will incorporate <br />state of the art processing technology. The primary raw material used in the manufacture <br />of portland cement is limestone, which will be quarried on property leased from the State <br />of Colorado <br />i <br />APPExhibi[sA-T-APP(I180)RevB/January 17, 2002 D-5 <br />
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