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RECEIVED <br />- - nd_ ILIC~ <br />environmental & engineering <br />July 21, 2003 <br /> ~`REC~la ~ <br />Thomas A. Schreiner <br />Environmental Protection Specialist JU <br />~W3 <br />Division Of Minerals and Geology <br />1313 Sherman St., Room 215 <br />~ <br />Denver, Colorado 80202 isien ~f Minerals and Geo gy <br />C/ast; ~rmiTl <br />Subject: Response to Adequacy Review comments, Stroh Pit M-2002-078 <br />Dear Thomas A. Schreiner: <br />• Trarraportatlan <br />• Lard Devebpment <br />• M/Mng <br />• rndushy <br />The responses below and associated revised exhibits have been prepared to address Adequacy <br />Review comments from your fetters dated October 1, 2002 and October 8, 2002 (Sorenson <br />comments). <br />6.4.3 EXHIBIT C -Pre-Mining and Mining Plan Maas) of Affected Lands <br />1. Maps have been revised to our current cad standard and signed by Peter Wayland M.S. <br />Geologist. A uniform scale of 1"=200' has been used for all full size maps. Please note the <br />permit boundary has been set back 200' from the Hillsborough Ditch in the SW comer. <br />6,4.4 EXHIBIT D - Miniriu Plan <br />2. The liquid asphalt storage area will include a concrete containment pad designed to contain <br />minor spills. <br />3. The northern cells have been eliminated from this submittal. The decision has been made to <br />not mine the north zone at this time. We may decide to'mine this area in the future pending a <br />technical revision of this permit. <br />4. The modeled floodway has been included in the revised Exhibit D. <br />5. Since the north zone will not be mined, this will not be necessary <br />6. Coulson Excavating will mine slopes at 0.5H: 1 V <br />6.4.5 EXHIBIT E -Reclamation Plan <br />7. Of 966,469 yd3 of overburden generated, 240,091 yd3 will be backfilled to reduce slopes from <br />0.5:1 to 3:1 and replace topsoil. 726,377 yd3 will be removed from the site. <br />8. All slopes will he reclaimed at 3:1. <br />9. Topsoil will be replaced at a depth of 2ft. <br />6.4.6 EXHIBIT F -Reclamation Plan Map <br />JUL 13 2003 <br />jiirjsien rf Minerals anA Geology <br />urvlrartmentad/ Support lor. <br />10395 Cof/ax Ave., Suite 350. Lakewood CO 80215 <br />ph 303-436-0951 /ax 303-436-0953 <br />