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revealed visual dominance by Kochia scoparia, though perennial grass clumps were <br />evident in the west half of the seeding. The east half of Area 5 was interseeded in <br />• November 2002. Overall total vegetation cover was estimated at 20 percent. Total <br />herbaceous production was not estimated. <br />2000 RECLAMATION AREAS <br />Two former haul road corridors were seeded to the permanent seed mix in 2000, the <br />corridor (Area 19) between Areas 11-13 and 20 and 22, and the comdor (Area 6) <br />southeast and east of the 1987 east pazcel. Interestingly, in areas where the topsand was <br />amended with Al Organics material, perennial grass growth was noted. In Area 19, <br />between Areas 12 and 2Q a significant growth of Bouteloua gracilis was noted. Along the <br />southern segment of Area 6, significant perennial grass growth was noted in the drill rows. <br />While both corridors contain significant cover of Kochia scoparia, this annual weed <br />appeazs to serve as a cover crop, providing shade and desiccation protection for seedling <br />perennial graminoids. Total vegetation cover was estimated at 30 percent. <br />COMPARISON OF RECLAIMED AND REFERENCE AREAS <br />Monitoring of the revegetated azeas allows for the identification of vegetation community <br />development trends during the extended liability period. This evaluation also assists in <br />decisions regazding yearly grazing, husbandry practices, interseeding, fertilizing, and weed <br />management. Comparison of the reclaimed azea values for vegetation cover, herbaceous <br />production, and species composition with the values from the reference azea or standazd, <br />• indicates whether revegetation has been successful, or whether additional measures need <br />to be initiated to enhance vegetation community development. The tables below allow the <br />comparison of the parameter values with the standard to be achieved, either from the <br />reference azea in the case of vegetation cover and herbaceous production, or the <br />established standazd for species composition. <br />Total Vegetation Cover (2002) <br /> Reference Area 1995 Rec. Areas 1997 Rec. Areas 1995 Areas <br />bar 22.60 23.20 23.20 29.80 <br />S 3.13 4.02 4.24 6.07 <br />N 10 l0 10 10 <br />Nmin 6 10 11 14 <br />Coors Energy Company Page 14 <br />2002 Revegetation Mon}toring Report <br />