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c\ <br />THESE MAPS WERE PREPARED BY CIVIL RESOURCES, LLC IN COOPERATION WITH GILCREST <br />RESERVOIR, LLC AND PLATTE SAND & GRAVEL, LLC. PLATTE SAND & GRAVEL, LLC WILL KEEP THE <br />DIVISION OF RECLAMATION, MINING AND SAFETY APPRISED OF ANY CHANGES TO THE MINING OR <br />RECLAMATION PLAN THROUGH ANNUAL REPORTS AND WILL FILE TECHNICAL REVISIONS AND <br />AMENDMENTS APPLICATION AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. CIVIL RESOURCES, <br />LLC IS NOT RESPONSIBLE FOR SAFETY IN, ON OR ABOUT THE PROJECT SIT NOR FOR COMPLIANCE BY <br />THE APPROPRIATE PARTY OF REGULATIONS THERETO. <br />BRAD L. HAGEN, P.E. 32982 DATE <br />CIVIL RESOURCES, LLC <br />w <br />x <br />w <br />w <br />EA <br />w <br />z <br />U <br />a <br />f <br />RESERVOIR HWSE <br />3 FT BELOW CREST <br />In z <br />w � <br />> o <br />TYPE L RIPRAP D. =9" 18" THICK <br />1 FT ABOVE AND 1 FT BELOW <br />DAM CONTACT WITH EXISTIGN <br />GROUND; 6' ALONG SLOPE <br />ZONE 5 <br />(CLASS 5 ROADBASE 1' THICK) <br />MINIMUM CREST ELEVA <br />TYPE L RIPRAP Ds. =9" 18" THICK_ <br />2 FT ABOVE AND 2 FT BELOW <br />NHWL; 12' ALONG SLOPE <br />SLURRY <br />WALL <br />CL <br />ZONE 4 <br />20'CREST OVERBURDEN /TOPSOIL FOR NATIVE GRASS <br />ESTABLISHMENT AND EROSION RESISTANCE. <br />(6 " -12" THICK TOPSOIL) <br />8' (TYP.) <br />0 <br />DAM TYPICAL SECTION <br />0 25 <br />(IN FEET) <br />KEY DEPTH VARIES DEPENDING ON QUALITY OF BEDROCK <br />AND SLURRY REQUIREMENTS (MIN. 4 FEET) <br />EXISTING GROUND <br />SEO FILE NO C -1 74, o-1 97 3, C-1972, <br />C -1971 C-10 & C -1969 <br />EXISTING GROUND <br />NO. <br />REVISIONS <br />DESCRIPTION <br />DATE <br />BY <br />S&H MINE <br />PERMIT M- 2000 -158- AMENDMENT 2 <br />EXHIBIT C - MINING PLAN <br />�— SAND AND GRAVEL MATERIAL <br />323 5th Street <br />CIVIL R E SOU R C E S, L LC P.O. Box 680 Frederick, CO 80530 <br />303 833 1416 (p) 303 833 2850 (f) <br />SLURRY PAD BE CONSTRUCTED WITH .' <br />- <br />�._ <br />- <br />�- <br />TO BE MINED IN FUTURE 3 <br />_ <br />_ <br />-: <br />- <br />LA APPROVED <br />-LOW PERM -CLAY MATERIAL APPROVED BY" <br />- -- <br />SAND /GRAVEL DEPOSIT LEFT IN PLACE" <br />° <br />:3' MIN _ <br />ENGINEER, SEE TIE -IN ALTERNATIVE <br />141.001.10 <br />(CONTAINS SILT AND CLAY LENSES) <br />_I <br />- <br />CLAY/OVERBURDEN-SLURRY, <br />-CLAY /OVERBURDEN -SLUR -, :-.BELOW <br />PROPOSED RESERVOIR <br />n <br />VERTICAL CONTACT FACE_ <br />- - <br />BOTTOM GRADED TO DRAIN _ -- - <br />TO REQUIRED POINT - -- _= ' <br />-' - <br />-' REMOVE TOP 6" TOP SOIL AND ROOT ZONE, <br />N <br />_ <br />- -_ <br />SLURRY WALL <br />.- <br />- SCARIFY WITH DISC AND BEGIN - <br />- ``� <br />_ <br />- (2' -6' MIN) <br />. <br />PLACEMENT /COMPACTION OF EMBANKMENT -� <br />,VARIES <br />BEDROCK <br />BEDROCK <br />0 <br />DAM TYPICAL SECTION <br />0 25 <br />(IN FEET) <br />KEY DEPTH VARIES DEPENDING ON QUALITY OF BEDROCK <br />AND SLURRY REQUIREMENTS (MIN. 4 FEET) <br />EXISTING GROUND <br />SEO FILE NO C -1 74, o-1 97 3, C-1972, <br />C -1971 C-10 & C -1969 <br />PLATTE SAND AND GRAVEL, LLC <br />NO. <br />REVISIONS <br />DESCRIPTION <br />DATE <br />BY <br />S&H MINE <br />PERMIT M- 2000 -158- AMENDMENT 2 <br />EXHIBIT C - MINING PLAN <br />323 5th Street <br />CIVIL R E SOU R C E S, L LC P.O. Box 680 Frederick, CO 80530 <br />303 833 1416 (p) 303 833 2850 (f) <br />DESIGNED BY: US <br />DRAWN BY: US <br />CHECKED BY: BLH <br />DATE: MAR 2010 <br />SCALE: SCALE: AS NOTED <br />JOB N0. <br />DWG: nA n2 <br />141.001.10 <br />SHEET: <br />