2011-03-24_REPORT - C1981019 ‎(8)‎

• Permit No: C1981019
• IBM Index Class Name: Report
• Doc Date: 3/24/2011
• Doc Name: 2010 Annual Hydrology & Annual Reclamation Report
• From: Colowyo Coal Company
• To: DRMS
• Annual Report Year: 2010
• Permit Index Doc Type: Hydrology Report
• Email Name: JHB
• Media Type: D
• Archive: No

Colowyo Coal Company
2010 Annual Reclamation and Hydrology Report
Figure 4-1- Colowyo Reclamation Seed Mixture Tables
Table 2.05-7
Reclamation Seed Mixture -Grassland Erosion Caritrol' Graazin 'land Targeted Areas - Co la, o'Mine - 2 008
Life Seeds Rec. PLS Avg. seeds
App, Species Synonym Common Name Origin Form Ib. lbs. / acre / sq. foot
Agropyron dagstachWm Elymus lanceolatus ssp. lanceclatus Thickspike Wheatgrass N Grass 154,000 1.25 4.4
Agropyron smithil Pascopyrum smithii Western Wheatgrass N Grass 110,000 1.50 3.8
Agropyron spicatum inerme Pseudoroegneria spicata ssp. Inerme Beardless Biuebundl Wheatgrass N Grass 117,000 2.00 5.4
Agropyron tracocaulum Elymus trachyraulus ssp. trachycaulus Slender Wheatgrass N Grass 159,000 0.75 2.7
Bromus marginatus Bromopsis marginatus Mountain Brome N Grass 90,000 1.00 2.1
Eymuscinereus Leymusdnereus Great Basin Wildrye N Grass 130,000 0.50 1.5
Sti v/ridula NewTm to CCQ Nassella viridula Green Needl rass N Grass 181,000 0.75 3.1
Astragalus doer Gcer Milkvetch I Forb 145,000 0.30 1.0
Linum lewtsii Lewis Flax N Forb 293,000 0.25 1.7
Ahiplex canescens Fourwing Saltbush N Shrub 52,000 1.60 1.9
Symphoricarpos rotundtfoliius Mountain Snowberry N Shruh 75,000 0.75 1.3
S ubtotal = 10.65 28.87
Festuca saximontana Rocky Mountain Fescue N Grass 680,000 O.Su 7.8
v Achillea millifollum Western Yarrow N Forb 2,770,000 0.10 6.4
e Flenstemon strictus Rod(y Mountain Penstemon N Forb 592,000 1 0.25 3.4
m Artemisa tridentate ms--yana Maintain Fri,) Sagebrush N Shrub 2,S00,000 0.50 28.7
1
Subtotal = 1.35 46.26
1
Grass PLS/ Seeds/n' Subtotal - 5,25130.11 Porb PIS/ seeds/n' SubtWal -0.9 12.44 Shrub Pty/ seem/R' Subtotal a 2.55/31.9 Total 12.00 75.13
Note: Where desirable to draw eik'away from particular location; Etymus dnerrus and/or other tan may be substitued with Orchard Grass (sought by Elk) at the quantity Indkated below.
Da is lomerata Orchard Grass I Grass 654 000 1.25 18.77
Seed Mix Comments
1) The correct sagebrush seed (Artemisia vaseyana - pauciflora) 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
Recla mation Seed Mi re -List of Contingency Substitutions for Tables 2.05-7 & 9 - Calo_ f o Mi ne - 200
..
.. 8
Prior- - Seeds Rec. PLS Avg. s
Ity Species Synonym Common Name Origin Form Ib. lbs. / acre / sq. foot
2 Agropyron spicatum Pseudoroegneria spicata ssp spicata Bluebunch wheatgrass N Grass 140,000 0.5-2.0 1.3 - 5.4
1 Bromus dliatus Bromopsls dliatus Nodding Brome N Grass 80,000 0.3-1.0 0.6 - 1.8
4 fesWca ldahoensis Idaho rescue N Grass 450,000 0.2-0.5 2.1- 5.2
5 Ory-psis hymenoides Aclrnatherum hymenoides Indian Ricegrass (needs sandy N Grass 141,000 0.50 1.6
3 Poa sand li Sandberg Bluegrass N Grass 925,000 0.20 4.2
2 Helianthella uniflora oueflower Sunflower N Forb 103,000 0.30 0.7
1 Hehomerismultiflora Goldeneye N Forb 1,055,000 0.30 7.3
3 Sanguisorba minor Small Burnet N Forb 55,000 0.25 0.3
4 VWa amencana American Vebch N Forb 33,000 0.30 0.2
1 Artemisia cans Silver Sagebrush N Shrub 850,000 0.50 9.8
2 Qnysothamnus visddillorus Douglas Rabbitbrush N Shrub 782,000 0.30 5.4
4 Rhos trilobata Skunkbrush Sumac N Shrub 20,300 0.50 0.2
3
rpcs rotundifolius
hortca
Snowbe
N
Shrub
75 000
0.75-1.0
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.
r?
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