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Surface Stabilization Measures. The planting of a cover crop will be the principal means of surface <br />• stabilization during initial establishment of the perennial vegetative cover. Straw mulch may be used <br />in lieu of a cover crop. Whenever mulch is used, the application rate will be approximately one ton <br />per acre. The straw will be anchored by mechanical crimping or tacked with one of the various <br />tackifying compounds available. Mechanical crimping operations will be done on the contour <br />whenever possible. Only clean grain straw that is free of noxious or problem weeds will be used. <br />Hydromulching has been discussed previously. Fall seeding of the permanent mix allows for spring <br />germination and subsequent quick stabilization. <br />Interseeding of Previously Seeded Areas. All seeded areas will be periodically monitored for success <br />of perennial vegetation establishment. In areas where it has been determined through observation <br />and monitoring that limited revegetation success exists, interseeding, in accordance with Rule <br />4.15.7(5)(8), will be conducted. The seed mix used to enhance the success of the established <br />vegetation will consist of native species, as follows: <br />Interseeding Seed Mix <br /> Drill Rate* <br />• Species Name P.L.S. Recommended <br /> Species Common Name lbs/Acre Seeds/Ft2 Variety <br />1. Elymus lanceolatus dasystachy non Thickspike wheatgrass 1.0 3.5 Critana <br />2. Pascopy a smithu Western wheatgrass 2.0 3.2 Arriba <br />3. Pseudoroegaeri a spicata sp-tca Bluebunch wheatgrass 2.0 6.8 Secar <br />4. Emus trachhycaulus trachhycaulus Slender wheatgrass 1.0 3.6 San Louis <br />5. Ceratochloa carina Mountain brome 2.0 3.2 Bromar <br />6. bus cinereus Basin wildrye 2.0 7.6 Trailhead <br />7. Festuca ovina Sheep fescue 0.25 3.4 Covar <br />8. Poa ampla Big bluegrass 0.25 5.0 Sherman <br />9. Balsamorhiza s 'tta a Arrowleaf balsamroot 0.50 0.6 Native <br />10. Seriphidium vaseyan um Mtn. big sagebrush 0.5 20.0 Native <br />11. Symphoricarpos rotundifolius Mountain snowberry <br />2.0 <br />3.4 <br />Native <br /> Total 13.5 60.3 <br />*Broadcast rate is double the drill seeding rate <br />The location of the interseeded areas will be identified in the appropriate Annual Reclamation <br />• Report(s). <br />MR-31 26 Revised 9/09