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2023-02-13_PERMIT FILE - M2023005
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2023-02-13_PERMIT FILE - M2023005
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Last modified
2/14/2023 8:38:25 PM
Creation date
2/14/2023 8:57:32 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2023005
IBM Index Class Name
Permit File
Doc Date
2/13/2023
Doc Name
Application
From
Siete, Inc
To
DRMS
Email Name
ANM
JLE
SMS
AWA
Media Type
D
Archive
No
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6.3.2 EXHIBIT B <br /> SITE DESCRIPTION <br /> 1. Location and General Land Use Information <br /> The site is located along Huerfano County Road 650 and Interstate 25 and is composed of dry <br /> rangeland. The parcel is currently leased for agricultural operations by the Colorado State Land <br /> Board. <br /> 2. Site Geology <br /> Site geology consists of 3-4 inches of topsoil. Mining will occur to a depth of approximately 20 <br /> feet. There are no hazardous or acid forming materials expected to be encountered during <br /> excavation. See the enclosed Natural Resources Conservation Service (NRCS) soil report for <br /> more details on surface composition. A majority of the site is composed of Baca Silt Loam. <br /> This material is well drained with slow to medium runoff and moderately slow permeability. <br /> These soils are used for both rangeland and for irrigated cropland. Native vegetation is blue <br /> grama, buffalograss,western wheatgrass, broom snakeweed and cactus. Samsil-chicosa <br /> complex is also on the property and is found in rangeland. The main native vegetation and <br /> includes little bluestem, western wheatgrass, sideoats grama, blue grama, green needlegrass, <br /> sedges and forbs. It is well drained and has a medium to high surface runoff. Permeability is <br /> slow. <br /> 3. Surface Hydrology <br /> Pre-mining topography is shown on the Existing Conditions Map. All runoff on the undisturbed <br /> site runs to the south. Stormwater will be kept from leaving the site by using topsoil and <br /> overburden stockpiles which will surround the site following the perimeter. The stockpiles will be <br /> first developed on the western edge of the site and will encircle the full area over the mine's life. <br /> This perimeter topsoil berm is shown on the Mining Map. Stormwater that occurs on site will <br /> remain on site; however, the soils should allow for stormwater to infiltrate the site and pit floor <br /> within 72 hours. <br /> Based on data from the Division of Water Resources Well Permit Search map, groundwater is <br /> not anticipated to be encountered during any phase of mining. A structure depicted on the map <br />
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