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.~ '1 <br />August 17, 1993 <br />Ms. Susan Burgmaier <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RE: Semi-Annual Report, Meadows Mine <br />File C-81-029 January -June 1993 <br />Dear Ms. Burgmaier: <br />iii iiiiiiiiiiiiiiii <br />~'FCE'l V'rD <br />AUG 181983 <br />Division of M~ne1a'V a <br />~ru~~9}' <br />1. Backfill Stability <br />There are no areas of instability in the reclaimed Meadows Mine area. <br />2. Suring and See~SurveX <br />The landslide area at the old crusher site has at least three active seeps. <br />There was not enough moisture to measure. There are two wet spots on <br />the west facing reclaim. <br />3. Underground Mine Subsidence <br />An area 120' x 12' x 3'-5' deep has caved some 500 plus feet south of the <br />northwest sediment trap. It appears to be a north-south entry or room <br />approximately 120 plus feet below the surface. Sun Coal has fenced the <br />cave-in from the old Routt Pinnacle mine. The old mine bench and entries <br />are below the haul road near Eilts' oil tank. <br />4. Hvdrolog~Monitoring Data <br />Water samples were taken March 26, 1993. <br />SUN COAL COMPANY <br />10200 West 44th Ave., #120 <br />Wheat Ridge, CO 80033 <br />(303) 422-8064 <br />FAX (303) 467-0714 <br />5. Revegetation <br />The vegetation was again monitored by Agricola in July, 1993. A report is <br />due in two weeks. <br />