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• Savage and Savage <br />Memorandum <br />To: Donald W. MacDonald, Coors Energy Company <br />From: Michael Savage, Savage and Savage, Inc. <br />Date: Mazch 29, 2002 <br />Subject: First Quazter 2002 Pest and Disease Inspection; Keenesburg Mine <br />File #: C-81-028 <br />On March 28, 2002 I conducted an inspection of the reclaimed and revegetated areas at <br />the Keenesburg Mine for evidence of, plant pests or diseases which could affect the re- <br />established vegetation at the Keenesburg Mine. <br />The surface of the soil at the mine site in the reclaimed and revegetated areas was dry. Al] <br />reclaimed and revegetated areas of the mine, including the 1985, 1986, 198'7, 1995, 1998 <br />interseedings, and azeas seeded last fall were inspected by pedestrian and vehicle means. <br />The dugout area, the cottonwood copse, and the B Pit areas were also inspected for any <br />potential weedy invasive species. I did not identify any disease conditions at any of the <br />• reclaimed and revegetated areas or within the mine site. Nor did I identify any plant pests <br />which had affected the growth of the vegetation during the past growing season. No areas <br />which experienced any infestation or blight were found during the inspection. <br />The majority of the reclaimed areas inspected showed early green-up of the cool season <br />perennial brome and wheatgrass species. Examination of the warm season component <br />showed late season growth and flowering in little bluestem, sand bluestem, prairie <br />sandreed, and switchgrass. There was no evidence of negative impacts from the light <br />grazing that took place last autumn. I inspected the area south of the sediment pond <br />where reseeding took place last autumn. While there is no evidence of reinvasion by <br />cheatgrass or other aggressive speaes, there is little evidence of growth by the desirable <br />perennials. I concur with Danny that application of some additional Al Organics <br />amendment with a spring seeding of sorghum to hold the soil is warranted this spring. <br />Of ancillary note is the nesting great horned owl in the southeast comer of the cottonwood <br />copse in the 1985 East reclamation area. I spooked an adult owl in the 1995 reclamation <br />east of A Pit and subsequently saw an adult in the nest. <br />C: Keenesburg Pest and Disease Inspection File <br />• <br />AHR-2002 _ql_ <br />