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<br /> <br />STATE OF COLOR400 niC HARD D. ~. Gov moor <br />DEPARTMENT OF NATURAL RESOURCES <br />D. Monte Pascoe, Executive Director <br />MIl~IED LAND RECLAMATION <br />423 Centennial Building, 1313 Sherman Street <br />Denver, Colorado 80203 Tel. (303) 839-3567 <br />III IIIIII111IIII III <br />David C. Shelton <br />June 11, 19a1 Director <br />'POi Rich Domingue <br />FROM; M.S. Savage SAV~G <br />RE Wyoming Fuel Canadina Strip Seed Mix <br />i File No. C-026-81 <br />'~, iS <br />.9s requested, Z have looked over the Canadian Strip seed mix and accompanying <br />narrative and have the following comments: <br />Se d Mi x <br />i <br />.1.1 In the narrative, Wyoming Fuel claims that much of the present <br />vegetation is due to overgrazing (a common claim by most mines with large <br />cuantities of Sagebrush and Rabbitbrush), and that Idaho Fescue and Bluebunch <br />[Vheatgrass are under-represented as desirable grasses. However, neither of <br />these species is incorporated into the seed mix. <br />?. In both pre-mine (and reference area) communities, Lettermans Needle- <br />grass and Western Wheatgrass make up a considerable component based on cover <br />values, but are represented by small quantities in the seed mix. It is my <br />opinion that Needlegrass and western Wheatgrass should be increased in quantity <br />.in the seed mix. <br />3.~ The Division is very hesitant about approving Pubescent Wheatgrass in <br />:>eed mixes, as it is a very competitive species. At the rate proposed by <br />[Wyoming Fuel, Pubescent Wheatgrass would probably form a dense monoculture <br />•reiy quickly. <br />•9.I Wyoming Fuel should provide discussion relative to 4.15.2 justifying <br />utilization of any introduced species in the revegetation seed mix. <br />:i.l It would be very helpful for the applicant to provide a seeds/ftz <br />breakdown by species for their seed mix. <br />ti. R11 grasses proposed in the seed mix are cool season. Has the applicant <br /><3ddressed native (pre-mine) seasonality and how the proposed seed mix achieves <br />the requirement for a 'vegetation of the same seasonal variety'? <br />