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• Rule?: Permits <br />Timing of Seeding <br />Revegetation will occur after final grading and redistribution of subsoil and topsoil activities have <br />taken place. Seeding will be coordinated with other reclamation activities to occur as soon after <br />seedbed preparation as possible and within 90 days of soil replacement. Fall seeding (September <br />to November) is recommended based on local soil moisture conditions, germination requirements <br />of selected species, and adaptation of seed to soil temperature. Spring seeding (March to May) <br />will be practiced if areas are ready for revegetation and access is possible. Mixed seedings, one <br />seeding to plant cool season plants in early fall and one seeding to plant warm season plants in <br />spring, will be timed to avoid competition between species and avoid seed distribution problems. <br />Interim revegetation of sites, like on the topsoil storage piles to be stabilized prior to permanent <br />revegetation, will be conducted as soon after construction as possible. <br />Mulching <br />Mulching aids in erosion control, soil moisture retention, and provides supplemental organic <br />material to the soil. Mulch will be evenly distributed over the seeded area at rates dependent on <br />seeding method and slope. Certified weed-free straw or grass hay mulch will be applied at a rate <br />of 1 to 2.0 tons/acre on drill seeded areas and at least 1.5 tons/acre on steeper slopes of greater <br />than ten percent. Mulch will be anchored into the seedbed using a mulch crimper or disk, <br />• tackifier, or netting. If used, hydromulch will be applied at a rate of at least 250 pounds/acre. <br />A tackifier will be used on hydromulched areas that are mulched in the fall and on areas which <br />require prompt stabilization. A temporary cover crop of a suitable annual grain, like annual rye, <br />may be seeded to control erosion until a permanent cover can be established. <br />Vegetation Monitoring <br />LCC will conduct periodic monitoring of vegetation as prescribed by the CDMG. The objective <br />of the monitoring program is to assess the success of revegetation in disturbed areas. <br />Revegetated areas will be evaluated for cover and density during the first two seasons following <br />seeding to determine initial revegetation success. Initial seeding follows interim seeding once <br />permanent reclamation is deemed appropriate. In years 3, 5, and 7 following seeding, revegetated <br />areas will be evaluated for cover, density, and species diversity. Methodologies for these <br />evaluations are outlined in the Revegetation Success Criteria. Areas with poor germination and/or <br />growth will be documented and evaluated to determine probable causes. LCC will seek the advice <br />of CDMG to determine the scope of the evaluation. It will conduct such evaluations as necessary, <br />revise reclamation techniques to address any identified problems and make a second attempt to <br />revegetate problem azeas. An investigative report and prescribed course of corrective action will <br />be submitted prior to the next growing season. It is anticipated that revegetation mixtures <br />proposed in this reclamation plan may be modified, after agency approval, reflecting plant material <br />• <br />7'14-o z <br />PERMR.rtNApnl71. 199E 2.05-70 (revised 4/21!98) <br />