2009-03-11_REVISION - M1999098 (6)

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Mr. Eric Scott March 10, 2009 Page 3 of 9 The following table itemizes the projected backfill, topsoil and seeding requirements for each phase: phase amended Area Bach// To soi/ Seedin 1 (38 ac +/-) 485, 000 CY 2.5 Acres +/- 23 Acres +/- Approx. 25% stripped to shoreline and 21.5 begin - phased site acres of upland; preparation and mining 11,500 CY of the remainder 2 (38 ac +/-) 485, 000 CY 2.5 acres +/- 23 acres + Approximately 25916 reclaimed shoreline stripped to begin - and 21.5 acres of phased preparation of the upland; remainder. 11,500 CY 3 (74 ac +/-) 236, 000 CY 5 acres +/- of 45 Acres+/- Approximately 15916 shoreline and 40 acres stripped to begin - of upland; phased site preparation 7,600 CY and mining of the remainder Current Mining Site Current mining operation Concurrent This area is currently 46 acres +/ (340 ac - 253 acres of reclamation is in bonded for (current bond disturbed area) process - this area reclamation of 34 for 23 acres is already bonded acres of disturbed of seeding) area. DRMS experience is that more topsoil salvaged and replaced leads to more successful reclamation. The reclamation plan currently calls for total topsoil replacement to a minimum depth of 6 inches to 1 foot. Because this site will be in a very net positive situation for topsoil, the Division would recommend at least 12 inches of topsoil should be replaced in areas that are intended for revegetation. Replacing a thicker layer of the most suitable growth medium will provide for a better chance of successful revegetation establishment and ultimately a quicker release of the site. Topsoil will be stripped and stockpiled as part of site preparation for each phase. Topsoil will be replaced to the maximum depth possible with the topsoil generated within each mining phase. Additionally, the current reclamation plan states that topsoil stockpiles that will not be disturbed for 12 months will be seeded and stabilized. The Division recommends that topsoil stockpiles be seeded and stabilized as soon as possible if that material will be set aside for reclamation, and preferably no longer than 6 months. Waiting an entire year prior to seeding will likely result in erosion and weed control issues that will need to be addressed. tr6on