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GENERAL53794
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Last modified
8/24/2016 8:39:14 PM
Creation date
11/23/2007 8:56:15 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981033
IBM Index Class Name
General Documents
Doc Date
11/7/2003
Doc Name
Memo Regarding Vicinity Underground Mine Fire
From
Steve Renner
To
Joe Dudash
Permit Index Doc Type
General Correspondence
Media Type
D
Archive
No
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<br />Beaz Coal Mine Vicinity Underground Fire <br />At the request of the Coal Regulatory Program, I visited the Beaz Coal Mine property, <br />located immediately south east of the town of Somerset in Gunnison County. The visit <br />occurred on October 27, 2003, and began at approximately 12:00 pm. <br />Correspondence received from the Coal Program indicated that personnel at a neazby <br />mine had seen smoke or steam venting from the vicinity of the Beaz Mine, and that Coal <br />Program personnel had smelled combusting coal during inspections of the site. To <br />facilitate my evaluation of the site, a digital image was provided. -The image depicted the <br />approximate locations of the Beaz Number 3 alit; .C Seam outcrop, Edwazds C Seam adit, <br />and Edwards B seam adit. <br />A number of reclaimed benches or roads traverse the side of a steep hill located south of <br />an abandoned building. The benches aze interrupted to the west by a landslide mass. My <br />inspection of the site began along the middle, or intermediate, bench. An azea that <br />appeared to be an old mine entry, presumably the Edwazds B seam adit, was observed. <br />Numerous structural remnants were found in this area. The shape of the ground in this <br />location, combined with the structural remnants suggested that this was an abandoned <br />and collapsed mine entry, presumably the Edwazds B seam entry. A hand held infrared <br />thermometer did not detect temperatures above ambient conditions at or near this <br />location. The azea located uphill of this collapse was also evaluated, but no indication of <br />elevated temperatures was observed. Aground water discharge was observed slightly <br />west and downhill of this,presumably collapsed adit location. It is assumed that this is an <br />abandoned mine discharge. No other ground water discharges were observed throughout <br />the area. <br />Worlaxig uphill and toward the east on portions of the road /bench system not disturbed <br />by the landslide, the smell of combusting coal became appazent on the upper-most road / <br />bench. Evaluation of the azea revealed a vent (Feature 1) located at approximately 38° <br />55' 35"; 107° 27' 47". This vent is in the shape of a circular fracture pattern that <br />measures approximately six to eight feet in diameter. The fracture itself is narrow, <br />generally less than an inch wide, and never wider than two inches. The depth of the <br />fracture is unknown. Ground surface temperatures around the~erimeter of the fracture <br />were measured at 100° on the east side, 350° on the south, 300 at the west side and 200° <br />at the north side. The feature appears to be located in an area of backfill or possibly in <br />relatively thick coiluvial material. However, the feature appeazs to be on-strike with the <br />trend of the upper bench backfill. Although venting fractures are common at inactive <br />mine sites that have underground fires, I have never observed a venting fracture that <br />forms a continuous circulaz pattern. The pattern suggests that this area maybe <br />susceptible to a vertical or near vertical subsidence failure in the future. <br />
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