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Colowyo Coal Company
<br />2008 Annual Reclamation and Hydrology Report
<br />0 Figure 4-1- Colowyo Reclamation Seed Mixture Tables
<br />Table 2.05-7
<br />Colowyo Reclamation Seed Mixture
<br />
<br />Grass Species All Species - Average
<br />Origin Seeds/Sq. Ft.
<br />Seeds/Ac
<br />Seeds/Lb Broadcast Slip.
<br />PLS Lb/Ac Drilled Spp.
<br />PLS/Sq. Ft.*
<br />PLS/DF**
<br />Bromopsis marginatus/Mountain Brome N 1.0 43,560 90,000 0.48 NA 0.06
<br />Elymus lanceolatus ssp. Lanceolatus.
<br />Thickspike Wheatgrass N 1.2 52,272 154,000 0.34 NA 0.07
<br />Elymus lanceolatus ssp. Psammophilus/
<br />Streambank Wheatgrass N 1.2 52,272 156,000 0.34 NA 0.07
<br />Elymus lanceolatus ssp. Trachycaulus/
<br />Slender Wheatgrass N 1.8 78,408 159,000 0.49 NA 0.10
<br />Festuca samimontana/Rocky Mountain Fescue N 1.5 65,340 680,000 0.10 1.50 NA
<br />Leymus cinereusBasin Wildrye N 0.6 26,136 130,000 0.20 NA 0.04
<br />Pascopyrum smithii'Western Wheatgrass N 2.0 87,120 110,000 0.79 NA 0.12
<br />Poa amplaBig Bluegrass N 1.0 43,560 882,000 0.05 1.00 NA
<br />Pseudoroegneria spicata ssp. Iermel N 1.8 78,408 117,000 0.67 NA 0.10
<br />Beardless Bluebunch Wheatgrass
<br />Total Grasses N 12.1 527,076 3.5
<br />* Pure Live Seed per square foot for species to be Broadcast Seeded from open drill drop tubes
<br />* * Pure Live Seed per inch of drill furrow for species to be Drill Seeded (assumes 8-inch furrow spacing)
<br /> All Species - Average Broadcast Slip. Drilled Spp.
<br />Forb Species Origin Seeds/Sq. Ft. Seeds/Ac Seeds/Lb PLS Lb/Ac PLS/Sq. Ft.* PLS/DF**
<br />Achillea millefolium/Westem Yarrow N 2.5 110,642 2,770,000 0.04 2.5 NA
<br />Aster chilensis (Virgulaster ascendens)/ N 1.0 43,560 2,668,000 0.02 1.0 0.06
<br />Pacific Aster
<br />Artenisia ludoviciana/Pasture Sage N 0.8 34,848 33,600 1.04 NA 0.05
<br />•
<br />Astragalus cicerlCicer Milkvetch N 1.0 43,560 145,000 0.30 1.0 0.06
<br />Linum lewisii/Lewis Flax N 0.6 26,136 293,000 0.09 NA 0.05
<br />Onobrychis viciaefolia/Sanfoin N 1.0 43,560 30,000 1.45 NA 0.06
<br />Penstemon palmerilPalmer Penstemon N 0.8 34,848 610,000 0.06 0.8 NA
<br />Penstemon strictuslRocky Mountain N 0.8 34,848 592,000 0.06 0.8 NA
<br />Penstemon
<br />Total Forbs 8.5 372,002 3.05
<br />* Pure Live Seed per square foot for species to be Broadcast Seeded from open dri ll drop tubes
<br />** Pure Live Seed per inch of drill furrow for species to be Drill Seeded (assumes 8-inch furrow spacing)
<br />
<br />Subshmb and Shrub Species All Species - Average
<br />Origin Seeds/Sq. Ft.
<br />Seeds/Ac
<br />Seeds/Lb Broadcast Spp.
<br />PLS Lb/Ac Drilled Slip.
<br />PLS/Sq. Ft.*
<br />PLS/DF**
<br />Amelanchier ainifolia/Saskatoon
<br />Serviceberry N 1.0 43,560 25,800 1.69 NA 0.06
<br />Artemisia cana/Silver Sagebrush N 1.1 47,045 850,000 0.06 1.1 NA
<br />Artemisiafrigida/Fringed Sagewort N 0.8 34,848 4,536,000 0.01 0.8 NA
<br />Artemisiatridenta vaseyana/Mountain Big
<br />Sagebrush N 1.1 47,916 2,500,000 0.02 1.1 NA
<br />Atriplex canescenslFourwing Saltbrush N 1.0 43,560 52,000 0.84 NA 0.06
<br />Ceratoides lanata/Winterfat N 0.7 29,185 56,700 0.51 NA 0.04
<br />Chrysothamnus nauseosus/Rubber
<br />Rabbitbrush N 0.4 17,424 400,000 0.04 0.4 NA
<br />Rosa woodsii/Wood's Rose N
<br />,?ympnoricarpos rorunaUoausirviounLain N 1.0 43,560 75,000
<br />Snowberry
<br />Total Subshrubs and Shrubs 8.6 372,438
<br />* Pure Live Seed per square foot for species to be Broadcast Seeded from open drill drop tubes
<br />* * Pure Live Seed per inch of drill furrow for species to be Drill Seeded (assumes 8-inch furrow spacing)
<br />• TOTAL FOR MIX
<br />All Species - Average
<br />Seeds/Sq.Ft.
<br />29.2
<br />2.90 NA 0.06
<br />0.48 NA 0.03
<br />0.58 NA 0.06
<br />7.13 3.40 0.31
<br />PLS Lb/Ac
<br />13.64
<br />Page 4-3
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