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'~^ Y <br />f~ <br />iii iiiiiiiiniii iii <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 />February 4, 1993 <br />Ms. Susan Morrison <br />Division of Minerals & Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RE: Semi-Annual Report, Meadows Mine, File C-81-029, ~• <br />July-December 1992 <br />Deaz Ms. Morrison: <br />1. Backfill Stability <br />~~ <br />R~ ~ <br />C~ <br />~~iP o~p ~9 <br />~~ 0 9~ ~ <br />~o ~` <br />~n <br />?, <br />Sun Coal has monitored the stability of the Meadows Mine area at least every two weeks, <br />usually from March until October or Novembr since reclamation in the Fall of 1983. There <br />are no specific areas of instability. <br />2. Spring and Seep Survev <br />The only seeps active in the Fall of 1992 were coming from the landslide area <br />west of the loadout. There was one wet area in the top soil storage area and another neaz <br />the old scrap storage area. There was not enough moisture to measure. The seeps on the <br />mine reclaim had dried up. <br />3. Hydrology Monitoring Data <br />Water samples were taken March 20 and May 29, 1992. There was no discharge the rest <br />of the yeaz. <br />4. Bevegetation <br />Approximately 20 acres of the original Meadows No. 1 pit were graded, topsoiled and <br />seeded in 1981. Final reclamation was in the Fall of 1983 and early Spring 1984. <br />The vegetation was monitored by Greystone November, 1985 and October, 1988. IMS <br />monitored the area on July 1990 and September 1991 and August 1992. <br />In August of 1989 the area was spot sprayed for thistle under MR4. <br />The vegetation will again be monitored in July 1993. <br />