2010-03-12_REPORT - C1981019 (7)

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Colowyo Coal Company 2009 Annual Reclamation and Hydrology Report • Figure 4-1- Colowyo Reclamation Seed Mixture Tables Continued • • Table 2.05-9 Reda fnation Seed Mixture - Sagebrush Steppe (Sage Grouse Brooding Habitat Tar eted A reas - Colo o Mine - 2008 Life Seeds/ Rec. PLS Avg, see App. Species Synonym Common Name Origin Form Fir. Ibs. / acre / sq. foot Agropyron spicatum 1-e Pseirdoroegneria spicata ssp. inerme Beardless Bluebunch Wheatgrass N Grass 117,000 0.50 1.3 Agropyron bachyrauhrm 0-us trachyraulus ssp. trachymulus Slender Wheatgrass N Grass 159,000 0.20 0.7 a ^ Bromus marginatus Bromapsis marginatus Mountain Brame N Grass 90,000 0.30 0.6 ETymus dnemus Leymus dnereus Great Basin Wildrye N Grass 130,000 0.20 0.6 $ 6 Stl vlridula rev, ramp to coc) Nassella vlrldula Green Needl rass N Grass 181 000 0 20 0 8 A i l d l l i S , . . m` a `o o nem sta u ov c ana Asbagalus titer Lou siana agewort Gcer Milkvetch N I Farb Forb 33,600 145,000 0.50 0.30 0.4 1.0 H Linum lewlsil Lewis Flax N Farb 293,000 0.20 1.3 Atriplex canescens Fourwing Saltbush N Shrub 52,000 1.25 1.5 C 3 Purshia Wdentata Bitterbrush N Shrub 15,000 3.00 1.0 Rosa woods# Wood's Rose N Shrub 45,300 0.50 0.5 Symphorkaryos rotund/foliius ?? ?__- Mountain Snowberry N Shrub 75,000 1.00 1.7 'Subtotal c 815 11.62 m Pba ampla gig Bluegrass N Grass 882,000 0.20 4.0 _ 0 restirra saximontana Mountain Fescue N Grass 680 000 0.20 3.1 ` Adrillea millifolium Western Yarrow N Forb 2,770,000 0.10 6.4 o Penstemon palmed Palmer Penstemon N Farb 610,000 0.10 1.4 °a o Penstemon strldus Rocky Mountain Penstemon N Forb 592,0 00 0.20 2.7 p r8 F Artemisla cane Silver Sagebrush N Shrub 850,000 0.75 14.6 ARemisa Wdentata vaseyana Mountain Big Sagebrush N Shrub 2,500,000 2.00 114.8 3 ehrysoeramrrus nauseosus - - - - - -- - Rubber Rabbithrush --- - - _1 N Shrub 400,000 0.30 2.8 - - - - _ -- -- Subtotal = 3.85 149.82 Grass PLS/ Seeds/R, Subtotal - S.a/11.25 rorb PLS/ Seeds/W Subtotal =SA/13.21 Shrub PLS/ Seeds/R' Subtotal = &a/196.94 Total 12.00 161.44 • The application techniques indicated here should be implemented as follows at the discretion of the reclamation coordinator. 1) If a seed drill is to be used, only those species under that subheading should be drilled. Those species under the broadcast heading should be broadcast by one of two metiwds. If a standard rotary seed spreader is utilized to 'spray' seed across the ground, then a very light harrowing should follow (e.g., light tine method). Under this scenario, a single pass procedure could occur If the rotary spreader Is attached to the seed drill and the seed drill also pulls a light tine harrow. If the second broadcast method Is utilized (such as use of a Truax `Trnlion' seeder that "dribbles' seed between cultipacker wheels), a second pass with different equipment would be necessary. However, a third scenario would also be a very effective means to plant seed. Under this last scenario, oilseed would be broadcast with the use of equipment such as the Truax "Trillion" seeder. This would be a single pass protocol and NO harrowing should be utilized. This last method Is preferred. Seed Mix Comments 1) The correct sagebrush seed (Artemisia vaseyana -pauciora) from sources as close as possible to the Axial Basin will be requested from seed suppliers along with tag verification. A stipulation will be added to bid documentation to require the successful supplier(s) to verify sage subspecies and collection location and elevation. Page 4-4