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2009-05-06_REVISION - C1980005
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2009-05-06_REVISION - C1980005
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Last modified
8/24/2016 3:46:15 PM
Creation date
5/6/2009 1:18:33 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980005
IBM Index Class Name
REVISION
Doc Date
5/6/2009
Doc Name
Adequacy Response
From
Seneca Coal Company
To
DRMS
Type & Sequence
MR60
Email Name
DTM
Media Type
D
Archive
No
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5) Describe Exploration Activities <br />Proposed Exploration Activities: The primary methods of exploration and geologic and chemical <br />data collection proposed in this application include exploration drilling, geophysical logging, and <br />sampling, followed by reclamation of all exploration disturbances, as more specifically described in <br />the following sections. <br />The 2009 exploration program involves 15 exploration drillholes to further delineate and characterize <br />geologic conditions, coal seam occurrence and quality, and overburden physical and chemical <br />characteristics. The drillholes are designated as ccu034 through ccu048, with an additional numeric <br />descriptor to be added to designate the year in which each drillhole is completed (e.g., 2009ccu040). <br />This identification sequence is a continuation from the 2007 and 2008 exploration work permitted by <br />Colorado Coal Resources, LLC (an affiliated company) for the Sage Creek project area. <br />Each of the proposed 2009 drill-sites are shown on Map 1, and listed in Table 1. Depending on <br />drilling conditions, core recovery, and data requirements, the potential exists that it may be necessary <br />to off-set from an initial drillhole location (no more than 20 feet and within the same drill pad <br />disturbance area) and "twin" the original drillhole for the purpose of further sampling or <br />geologic/hydrologic testing. However, "twinning" of any hole will not occur prior to necessary <br />approvals by CDRMS, and if necessary, BLM. <br />Sage Creek plans to initiate exploration activities immediately upon receipt of required approvals, <br />and continue as weather and ground conditions allow. <br />Sage Creek also needs to evaluate surficial geology and slope stability for possible facilities <br />placement and portal excavation within a defined block area of approximately 20 acres (shown on <br />Map 1 A). Selected portions of this block area will be evaluated through shallow drilling. Given that <br />drillhole placement and sampling will be defined by the results of both initial and ongoing site work, <br />Sage Creek is proposing phased geotechnical investigations within the defined block area. No more <br />than 30 holes will be drilled within the defined block area. The holes will range in depth from 50-150 <br />feet (avg. 75ft). The shallow geotechnical holes shall continue the same numbering system but add a <br />"geo" code at the end to designate the hole as drilled for geotechnical investigation (2009ccu049geo). <br />Sage Creek Holdings anticipates drilling ccu038 and ccu043 during the winter months. Exploration <br />sites ccu034, 035, 036, 037, 039 and 040 can be drilled at any time of the year (including the May 1 - <br />July 1 grouse breeding and nesting season). Exploration activities at the remaining seven sites will <br />occur after July 1, and in the case of ccu041, 042, 045 and 046 after September 1'. Geotechnical <br />work will be completed outside the nesting season (July 1'` to October 31 "), away from lek and <br />nesting sites (refer to wildlife Map 3), and in areas that are not identified as grouse habitat (adjacent <br />to CCU036 - a site with no timing restrictions). <br />It is anticipated that drilling activities will be completed by the end of 2009, although weather or <br />other unanticipated delays may result in extension of the activities through fall of 2010. Sage Creek <br />plans to schedule drilling operations on a 12-hour per day basis (approximately 7:00am to 7:00pm); <br />however, Sage Creek requests permission to conduct operations on a 24-hour per day basis if <br />unforeseen delays cause the project to fall behind schedule. In the event of winter drilling activities, <br />Sage Creek will coordinate with the CDOW to keep specific gates locked to preclude public access, <br />and to avoid areas of critical winter range. Sage Creek will also coordinate with the CROW to <br />minimize potential impacts during the Columbian sharp-tailed grouse hunting season (September 1 to <br />• September 21). <br />Sage Creek Project - 2009 N01 <br />04108109
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