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2017-08-16_GENERAL DOCUMENTS - C2010089
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2017-08-16_GENERAL DOCUMENTS - C2010089
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Entry Properties
Last modified
8/18/2017 7:04:15 AM
Creation date
8/18/2017 7:01:45 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C2010089
IBM Index Class Name
General Documents
Doc Date
8/16/2017
Doc Name Note
(RN1)
Doc Name
Proposed Decision and Findings of Compliance
From
DRMS
To
Elk Ridge Mining and Reclamation, LLC
Permit Index Doc Type
Findings
Email Name
BFB
DIH
Media Type
D
Archive
No
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<br /> <br /> <br /> 13 <br />or animal species or any critical habitats of such species are known to occur in the mining area . <br />No state listed threatened or endangered plant or animal species or any critical habitats of such <br />species are known to occur in this area. However, there is the potential that the Burrowing Owl <br />(threatened species in Colorado) might be found in this area and a special monitoring plan with <br />operational considerations is being implemented to address this species. <br /> <br />Prime Farmland Investigation- Section 2.04.12 of the permit <br /> <br />The NRCS has identified one soils mapping unit within the NHN permit area to be "prime farmland <br />if irrigated." This mapping unit, 71 - Nyswonger silty clay loam, appears in two locations, totaling <br />1.46 acres on permit Map 2.04.9-1, NRCS Soils Map. The "Rice Tract" site is located on the <br />eastern edge of the permit area, immediately north of the area mined and previously reclaimed <br />under the New Horizon Mine permit C-1981-008. This area was redisturbed by mining and <br />reclamation activities under the NHN permit. The second site, "Tuttle Draw", is found at the <br />southern end of the equipment corridor, at Tuttle Draw. Detailed maps of the two sites are <br />provided as permit Maps 2.04.12-1 and 2.04.12-2, respectively. Neither of these locations have a <br />history of having been irrigated or cropped. In a letter dated May 8, 2009, the NRCS issued a <br />negative determination for the presence of prime farmland at the "Rice Tract" location. <br /> <br />Description of the Operation and Reclamation Plans <br /> <br />Operation Plan <br /> <br />Mining at NHN utilizes surface mining methods. Development activities began in 2013 with the <br />construction of the mine's surface facilities, including the buildings, necessary portions of the haul <br />roads, and necessary pond(s). Map 2.05.2-1 of the permit shows the features of the site, including <br />the anticipated progression of the mine from south to north. Topsoil was stripped from the <br />southern portion of the permit area, and stockpiled as shown on Map 2.05.4(2)(d)-2. Stockpiling <br />of soils was necessary only during the initial phases of mining. Live haul and replacement of soils <br />is the process used as the active pit progresses to the north. <br /> <br />Individual pit cuts are oriented east-west, with mining having commenced at the south and moving <br />northward. Individual panels range between 100 and 120 feet in width and lengths approaching <br />2200 feet. Removal of the topsoil from an area to be mined will expose the overburden that will <br />be removed. The upper overburden, or "Bench 1" is unconsolidated, and is generally "free-dug" <br />by the mine's shovel without the need for blasting. The Bench 1 overburden is loaded into trucks <br />and hauled to the back of the pit for placement in the uppermost overburden level of the backfilled <br />pit. The replaced Bench 1 material will directly underlie all topsoil that will be redistributed. The <br />lower overburden consists of shales and sandstone, which requires blasting in order to remove it. <br />Overburden will be removed by bulldozer or a shovel and trucks after an area has been drilled and <br />shot. An ANFO slurry is the primary agent used in the blast. All shots are monitored with <br />seismographs located at structures nearest to the blast. Blasting schedules are published in the <br />local newspaper. Most blasting occurs mid-day early in the week. Daily notifications are made <br />prior to each blast to certain individuals who have requested this service. <br />
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