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2.0 METHODS <br />. 2.1 SAMPLING DESIGN <br />Prior to initiation of fieldwork, the permit doaunent and applicable maps were reviewed <br />to evaluate topography, reclamation timing, seed mixes, revegetation methods, <br />management, and applicable revegetation standards. <br />Numerical designations were assigned to the reclamation areas to eliminate confusion and <br />facilitate futtve discussions in 2002. The numbers assigned to reclamation areas are <br />depicted on the 2003 Vegetation/Revegetation Map. Only those areas currently <br />revegetated were assigned numbers, starting in the northeast comer of the permit area and <br />proceeding clockwise through the site. As additional areas are reclaimed and revegetated <br />they will be assigned ntunbers. <br />A map of the mine site at 1:2400 scale (1 "=200') was used to delineate the revegetated <br />areas (Coors Site Plan; Vegetation Sampling Locations). On a gridded overlay of the <br />revegetation map, a Cartesian wordinate grid (50x50 feet) was established. Computer <br />generated random numbers were used to establish a pool of x,y coordinates. Since the <br />reclaimed parcels for the years and areas to be evaluated were non-contiguous (e.g., <br />separated by road corridors or reclamation years), each revegetated area was gridded <br />separately. The acreage of each revegetated area was established. Random sample <br />locations were established for each revegetated area. Within each year's revegetation <br />parcels, sufficient samples were established to represem each discontinuous area by <br />proportional acreage. The following table identifies and locations of each parcel <br />quantitatively sampled, the acreage, and the number of cover and herbaceous production <br />samples taken. <br />I.ocatioe Cover <br /># of sam les $erb. Fred. <br /># of sam fea <br />Os Seed Ref. Area 10 IS <br /> <br />1995 Reclamatioe Areas <br />Area 1 i le 7.4 ac 2 3 <br />Area 8 of A Pit 8.1 ac. 2 3 <br />Area 16 of'87 West area 1.7 ac. 1 1 <br />Area 24 Road Corridor 10.5 ac. 3 5 <br />Area 27 S of sediment ~ 2.5 ac. 1 2 <br />Area 28 of sediment 1.4 ac. 1 1 <br />Total Sam Ia 1995 Areas 10 15 <br /> <br />1997 Reclamation Areas <br />Area 3 Corridor 4.5 ac. 2 4 <br />Atea 14 Of A Pit 1.4 ac. 1 1 <br />Area 18 S of B Pit 8.6 ac. 5 7 <br />Area 21 of B Pit 3.6 ac. 2 3 <br />Total Sam lea 1997 Areas 10 15 <br />I• <br />Coors EnergyCompary Page 2 <br />2003 Revegetation Monitoring Report <br />