2014-02-20_REPORT - C1981019 (10)

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Colowyo Coal Company 2013 Annual Reclamation and Hydrology Report Fiaure 4 -1- Colowyo Reclamation Seed Mixture Tables Table 2.05 -7 or s Rec. PLS Avg. Ms Ity Species Synonym Lft Seeds Rec. PLS Avg. =S APP. Species Synonym Common Name Origin Form Ib. Ibs. / acre / sq. foot 0.5-2.0 Agropyron dasystachyum Elymus lanceolatus ssp. lanceolatus Thickspike Wheatgrass N Grass 154,000 1.25 4.4 0.3-1.0 Agropyron smrtho Pascopyrum smrthn Western Wheatgrass N Grass 110,000 1.50 3.8 0.2-0.5 Agropyron spicatum rnemre Pseudoroeyneria spicata ssp. inerme Beardless Bluebunch Wheatgrass N Grass 117,000 2.00 54 0.50 Agropyron trachycaulum Elymus trachycaulus ssp. trachycaulus Slender Wheatgrass N Grass 159,000 0.75 2.7 0.20 Bromus marymatus Bromopss marginatus Mountain Brome N Grass 90,000 1.00 2.1 = Elymus anereus Leymus anereus Great Basin Wiklrye N Gass 130,000 0.50 1.5 0.30 Strpa wridula (Ne. Ta- to ccc) Nassella vindula Green Needlegrass N Gass 181,000 0.75 3.1 025 Astragalus acer 4 Cicer Milkvetch I Forb 145,000 0.30 1.0 0.30 Lrnum /ewivi 1 Lewis Flax N Fab 293,000 0.25 1.7 0.50 Atnp/ex canescens 2 Fourwing Saltbush N Shrub 52,000 1.60 1.9 0.30 Symphonca rotundrfolrius 4 Mountain Snowberry N Shrub 75,000 0.75 1.3 0.50 resWca saxrmontana 3 Rocicy Mountain Fescue N Grass 1 680,000 0.50 7.8 v Aduffea millifolium Western Yarrow N Fab 2,770,000 0.10 6.4 QFenstemon stncWS Rocky Mountain Penstemon N Fab 592,000 0.25 3.4 m Ademisa indentata vaseyana Mountain Bi brush N Shrub 2,500,000 0.50 28.7 Gras PLS/ Seeds /ft' Subtotal = 8.25/30A Forti PLS/ Seeds /ft' Subtotal = 0.9/12.44 Shrub PLS/ See& /ft2 Subtotal =2 a/31L.9 Total 12.00 75.13 Dactylis glomerata Orchard Grass I Grass 654,000 1.25 18.77 Seed Mix Comments 1) The correct sagebrush seed (Artemisia vaseyana - pauciJlora) 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 Table 2.05 -8 or s Rec. PLS Avg. Ms Ity Species Synonym Common Name Origin Form Ib. Ibs. / acre / sq. foot 2 Agropyron spicaWm Pseudoroegnena spicata ssp spicata Bluebundl wheatgrass N Grass 140,000 0.5-2.0 1.3-5.4 1 Bromus dhatus Bromopsrs allatus Nodding Brome N Grass 80,000 0.3-1.0 0.6-1.8 4 Festuca rdahoensrs Idaho Fescue N Gass 450,000 0.2-0.5 2.1-5.2 5 Ory-psis hymenoldes Adrnatherum hymenoides Indian Ricegrass (needs sandy so N Gass 141,000 0.50 1.6 3 Poa sandbergi, Sandberg Bluegrass N I Gass I 925,000 0.20 1 4.2 2 tfellanthella unrfiora Oneflower Sunflower N Forb 103,000 0.30 0.7 1 Hel"nens mulhflora Goldeneye N Forb 1,055,000 0.30 7.3 3 sangu/sorda minor Small Bumet N Forb 55,000 025 0.3 4 Viola amencana American Vetch N Forb 33,000 0.30 0.2 1 Artemisia cans Silver Sagebrush N Shrub 850,000 0.50 9.8 2 Chrysothamnus wsadiftorus Douglas Rabbltbrush N Shrub 782,000 0.30 5.4 4 Rhus tnlobata Skunkbrush Sumac N Shrub 20,300 0.50 0.2 3 rotundlfolius Snow N Shrub 75,000 0.75 - 1.0 1 1.3- 1.7 * Should one or more of the species in Table 2.05 -7 be unavailable or proven ineffective, then substitutes from this list will be selected in the priority stated. They will be placed in the seed mix at the rate specified in the priority stated. They will be placed in the seed mix at the rate specified for the unavailable /unsuitable species or as appropriate. If more than one species of a given lifeform cannot be obtained or is otherwise unsuitable, then the first and second priorities in the substitute list will be used. Colowyo can also choose to increase a seeding rate of an approved species if a corresponding substitute is not available rather than choose a substitute from Table 2.05 -8. Colowyo will obtain prior verbal approval from the CDRMS. Page 4 -2