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TWIN PINES NO. 2 MINE <br />REVISED 11/30/94 <br />FILE WP51\LGW\TPRECLM <br />PAGE NO. 90 <br />• The seed mixture will be applied by hand broadcast methods at a <br />rate of 30 lbs/acre on slopes and drilled on level areas at a rate <br />of 151bs./acre. Straw mulch will be utilized to protect seed beds <br />and retain moisture. Four thousand pounds of straw per acre will be <br />blown on the seed bed. The straw will be crimped using the grousers <br />of a dozer. Erosion control blankets may be utilized on some <br />reclaimed slopes. Seeding will done in late spring or early fall to <br />achieve the best results. <br />In accordance with Stipulation No. 6 a minimum ground cover of <br />living plants will be established which will produce approximately <br />200 pounds of air dry herbage per year. The estimated production is <br />based on a 90$ growth with a 90$ confidence level, with clippings <br />taken by the Soil Conservation Service as a bases for calculations <br />(see section 2.04.10 of the application). If in fact weed <br />infestation becomes a problem, Twin Pines will consult with the <br />Division and submit a schedule and plan in a minor revision prior <br />to implementing specific control measures. <br />RILL AND GULLY PLAN <br />The reclamation plan and construction of the mine site (Phase I <br />reclamation) provide for diversion of water above fill slopes for <br />the major fills on the site. Roughing of slopes with the grosers of <br />a dozer prior to and after seeding and mulching will lessen the <br />• effects of slope erosion. Rills and gullies, which may form on the <br />completed slopes will be filled, regraded, or otherwise stabilized <br />when such rills and gullies disrupt the postmining land use, <br />prohibit succcessful revegetation, or contribute to a violation of <br />water quality standards. Shallow rills will be hand raked and <br />seeded when evident after a major storm. Gullies greater than 12 <br />inches in depth will be filled with a small track machine then <br />seeded and mulched. Diversion berms or blocks in diversion pathways <br />will be repaired to prevent washing over the slope. <br />i <br />l J <br />