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PERMFILE111691
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Last modified
8/24/2016 10:08:11 PM
Creation date
11/24/2007 8:49:33 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
X200714211
IBM Index Class Name
Permit File
Doc Date
10/12/2007
Doc Name
Response to 10/11/07 Letter (E-mailed)
From
Dan Hernandez
To
Jason Musick
Media Type
D
Archive
No
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ITEM 5A: <br />The twenty two (22) exploration drill holes will be drilled with a truck mounted drilling rig <br />(comparable in size to a Gardner Denver 1000 or 1500). All drilling will be done with <br />air/mistffoam and the rig will have a mud pump to facilitate mixing and pumping mud for <br />hole plugging and abandonment. Cuttings will be used in plugging the holes and will be <br />collected and described (lithology) for five-foot intervals. <br />Drilling will commence with a 5-1/8" or 5-1/4" diameter pilot hole through the coal to <br />approximately twenty feet below the coal seam. Immediately after the holes are drilled, <br />a bentonite slurry (drilling mud: 50 second Marsh funnel viscosity) will be pumped into <br />the hole for purposes of conditioning and stabilizing the hole. The rig will then move off <br />the hole. Each hole will then be logged with geophysical tools (natural gamma ray, <br />gamma-gamma density, resistivity, and caliper). Soon after the drilling has been <br />completed, about one out of every five holes will be "twinned" and core drilled through <br />the coal. <br />No topsoil leveling or removal will be necessary at drilling locations or for drilling rig <br />access. Access will be by highway or overland travel designed to minimize surface <br />disturbance. <br />All drill holes will be plugged and sealed immediately after completion of drilling and <br />logging. Cuttings from drilling will be placed in drill holes. Excess cuttings will be <br />disposed of or removed. All drilling sites will be cleared of any trash or debris and left in <br />neat and orderly fashion. <br />ITEM 5.6.1: None <br />ITEM 5.6.2: None <br />ITEM 5.6.3: Bottlebrush Squirreltail 8.0 Ibs/PLS/AC <br />Western Wheatgrass 8.0 Ibs/PLS/AC <br />Or as stipulated by the surface land owner. <br />ITEM 5.6.4: See Attached Table 1 <br />ITEM 5.6.5: Aquifers are not expected to be encountered during this drilling program <br />due to the shallow nature of the drill holes and the fact that the coal strata at Second <br />Park and Cyprus Block is anticipated to be relatively dry because of the numerous <br />
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