2013-02-27_PERMIT FILE - C1981044

• Permit No: C1981044
• IBM Index Class Name: Permit File
• Doc Date: 2/27/2013
• Doc Name: Exhibit 43 Wise Hill No. 3 Mne Fire Aml project
• Section_Exhibit Name: Exhibit 43 Wise Hill No. 3 Mine Fire - AML Project
• Media Type: D
• Archive: No

Wise Hill Number 3 1Hart Coal Mine Fire. View toward Northeast.
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Wise kill No- 3 Fire Zone;
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Ilse Hill Number 3 /Hart Mine Fire location. North at top.
Central / Ridgeline Zone
This area is located on a point of land overlooking the highway
to the west, and an unnamed canyon to the south.A bench has
been constructed on the point near its southwesterly extent,
which overlooks the confluence of the canyon with the highway.
This bench supported past drilling operations. Fire features can
be found on the bench, and on the relatively undisturbed slope
immediately north of the bench.
A number of cased boreholes are located on the bench. The
most northerly borehole located has an operable thermocouple
installed.This thermocouple measured a subsurface temperature
of 370° on May 17, 2002. Numerous venting fractures are located
in this fire zone, generally located north and northeast of the drill
hole.A fairly significant fracture is observable about 50 feet north
of the instrumented drill hole.This fracture is discontinuous, due
to surface bridging, but is discernible for at least 100 feet. The
center of the fracture is located at 40° 25' 45.7' ; 1070 38'47.2".
Open portions of the fracture are generally semi- circular, and
measure about two feet by three feet. Temperatures within the
fracture zone, as measured from south to north were measured at
125 °,165 °, 200 °, 600 °,135 °.At the 6000 vent, carbon monoxide
measured 98 parts per mil ion.Yellow and white sulfur precipitate
is apparent at most of the vents along this fracture.
A large area to the north of the linear fracture is heavily disrupted
by numerous parallel to sub - parallel venting fractures. These
are generally located at the base of a deadman used to secure a
double -pole transmission tower located slightly uphill of this area.
The fractures in this area generally trend north, 100 west.The
fractures here support many active and inactive vents. The heat
values tend to be in the 160° range, with higher values being
observed near the southerly portion of the fracture system, as it
approaches the linear feature described above.
Central / Bench Zone
This area lies immediately to the south east of the Central /
Ridgeline Zone, and is characterized by a relatively flat bench
area, backed to the north by a nearly vertical wall.A number of
drill holes are visible on the bench area. Fire related features are
prominent throughout this area.
The northerly vertical cut slope, and the overlying area, displays
numerous parallel fractures, that appear to be joint controlled.
These fractures, which are generally 40 feet or greater in length,
by six to eight inches wide, trend about North, 35° West. These
fractures do not exhibit elevated temperatures or other fire
related characteristics. It is quite likely that these are subsidence
features related to coal extraction, rather than coal removal by
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