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PERMFILE67127
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PERMFILE67127
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Entry Properties
Last modified
8/24/2016 11:12:55 PM
Creation date
11/20/2007 9:44:30 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
X200622307
IBM Index Class Name
Permit File
Doc Date
5/8/2006
Doc Name
NOI Application
From
Oxbow Mining, LLC
To
DMG
Media Type
D
Archive
No
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Each pit will typically be approximately 20 feet in length, 4 feet in width and 8 feet deep (23.7 cubic yards <br />each). The pits will be located in the "cut" portion of the pad for pad stability. The maximum disturbance <br />area for each drill site is expected to be approximately 0.25 acres. <br />No surface blasting is anticipated. <br />Drilling and Related Activities - <br />Dxill holes will be drilled using rotary or auger drilling methods to the depth of the desired coxing interval <br />that will vary in the drill holes. Total drill hole depth will approximately 2800 feet. In order to avoid <br />potential sample contamination, drill holes will be completed to the extent possible with air, air-foam, or <br />water as the circulation medium. If drilling muds are necessary to maintain circulation and drill hole integrity, <br />polymer muds that are free of metallic compounds will be utilized. <br />All drilling and related operations will be conducted by experienced exploration drillers in such a way as to <br />minimize potential environmental impacts, and will be supervised by a qualified geologist or engineer. <br />During drilling operations, water levels and flows in the drill holes (if any) will be closely monitored in order <br />to characterize hydrologic conditions in the target seams and overlying strata. The interval to be drilled <br />contains no aquifer. Samples of immediate roof and floor rock materials and targeted coal seams will be <br />Logged and may be collected during drilling for subsequent analysis. <br />During drilling, OMLLC will control dust Erom drilling and related activities, divert and control both natural <br />runoff from dismxbed areas and fluid loss from drilling, and will clean-up any trash or debris. If air is utilized <br />as the circulation medium, dust from drilling will be controlled by a flexible shroud at the drill collar. Drill <br />cuttings and portable pits or excavated mud pits will effectively contain drilling fluids as discussed above. <br />All drilling equipment will be equipped with fire extinguishers and shovels in case there is a fire. Oil waste, <br />filters, etc. will be hauled oEEsite for proper disposal. <br />Hole Completioh -Due to long-term access issues and/ox the depth of the holes, OMI.LC does not plan <br />to complete the exploration holes as water monitoring wells ox methane vent wells. The hole depths are <br />noted above. <br />Site Reclamation -Upon completion of drilling and related activities, all drill holes will be backfilled, sealed <br />and abandoned. During drilling, fluid return will be monitored to identify the depth and extent of any water-. <br />producing zones. Upon abandonment, bentonite chips or a bentonite gel or similar seal will be established in <br />the bottom of the hole, extending to at least within 10' of the surface. Accumulations of drill cuttings and <br />mud will be buried in the mud pit (if any). A cement plug will be set in the drill hole ten (10) feet below the <br />ground to within three (3) Eeet of the surface. <br />Excavations, including mud pits, will be backfilled. Where mud pits are necessary, they will be allowed to dry <br />and/ar backfilled with drill cuttings and/or previously excavated material. During backfilling, the material <br />will be mixed and compacted as it is replaced, by running the equipment over the backfilled area during <br />placement of successive lifts. Following backfilling, disturbance areas will be graded to then approximate <br />original configuration and drainage will be reestablished. Any salvaged topsoil materials will be re-spread <br />onto the regraded surface. A metal post with identifying brass tag will be placed in the vicinity of the hole as a <br />permanent marker. All trash and debris will be removed from drill sites for disposal. <br />Fox pre-existing disturbance areas, the disturbed configuration will be reestablished as needed for future <br />operations. Fox other exploration disturbance areas, reclamation will be completed after regrading by <br />scarifying the regraded surface as needed, redistributing stockpiled topsoil, and reseeding the area using the <br />certified weed Eree seed mixtures prescribed in Exploration License # COC-67643. Also, in accordance with <br />the Exploration License, hay or straw will be certified weed free and Oxbow will be responsible for the <br />control of noxious weeds. <br />
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