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LEGEND — SECTION LINE ACREAGE PROPERTY LINE YEARS TO MINE* —I EASEMENT /ROW C PROPOSED EASEMENT 0.10 PAVED ROAD 26.42 1,300,300 ------------------------ ------------------------------ UNPAVED ROAD — —' — — — — DITCH /WATERWAY 1.75 MINING LIMIT /POND BOUNDARY 39.50 PERMITBOUNDARY 4,00 EXISTING INDEX CONTOUR 25.66 1,262,000 ' _ \ EXISTING INTERMEDIATE CONTOUR EXISTING GAS LINE — �•— •�— �— �— us— PROPOSED GAS LINE ON _ ON _ Q.V EXISTING OVERHEAD UTILITY — O" — o• —— o�— RELOCATED OVERHEAD UTILITY -- - - `" - — — EXISTING PHONE CABLE EXISTING STRUCTURE ' JURISDICTIONAL WETLANDS MW MONITORING WELL 1 DIRECTION OF MINING 1 t / -- - - - - - -- i RELOCATED UTILITY / PHASE 3 SITE ENTRANCE / VP5/ - — ❑ ❑ ❑ GRAPHIC SCALE 200 0 100 200 avv (IN FEET) 1 inch = 200 ft. CONTROUR INTERVAL = 5' I \ \ 1 / SUMP • (SEE NOTE 5) COFFERDAM OR OTHER TEMPORARY JJJ �• IMPERMEABLE BARRIER Ald �`. t �10 i '00e I 1 — 25' \ - - - -- / W\ I I /" / •2 PHASE 1D 1 I \ ' HYDROCARBO` 1 RECOVERY PAD lk 50 P) / // � PHASE 3A � MINING AREA ` ,/� I (39.50 ACRES) / ' PHASE 1 / 2 PROCESSING AREA ' (APPROX. LIMIT) CONCRETE PLANT / \ (TYP.) I / I \ ASPHALT PLANT \ ' � (TYPJ \ PRODUCT50PTING JC 25' FROM TOP OF 949 �TYp) • ' PHASE 3 ASPHALT / �- CONCRETE PLANT AND • • • PROCESSING AREA 1 j 25' FROM TOP OF BANK 1 +\ r �\ EVNTAINED ING DRIVEWAY TO BE ' i I M TEMPORARILY, NO TRUCK HAUL / USE FOR MINING • MW �. -.— .. ... —... / 25' FROM TOP OF BANK • .��+- — — PHASE 3B �� MINING AREA HYDROCARBON / 2 RECOVERY PAD ` (25.66 ACRES) PHASE 3 PROCESSING AREA (APPROX. LIMIT) I / ' ' , I •, PHASE 2 / MINING AREA / (16.86 ACRES) 25' FROM TOP 0 BANK X f- 1 1 /1" SCREENING 6 BUFF�RD* 111 ISMS i • j� . �� 1 -- s 0 ISE DETAIL) I i ' • �..f \ _— _..._ ' T i OMI i l , I -- bRC_— be'. �.— .•fA^�.NS� oy�_— — — — — — 6nS— .SeS— - .-- o --= 4pd�� — oyy�- off'— oHU— ow —Iowl atnl— ow! opa= ow— oru — ow— ow 0__ o„v— o —ow-T- v w ow 3� Off- Om— ow— ow— oNU -r oHU— oHU— oHU— o u f�ow El �( MINING AREA (26.42 ACRES) ( I \ 1 \ 1 ' 1 I 1 DEWATERING TRENCH\ 1\ 1 \ I \ \\ \ \\ 3 + / - - - - -- - - - -------------- ------------ ACCESS ROAD AND PROPOSE� PIPELINE EASEMENT "AYDROCARBON / G"5 PECOVERY PAD i '00 1 / f / PHASE 1A /.- �' / MINING AREA \ (1.72 ACRES) (SEE NOTE 3) - TEMPORARY SCREENING BERMS (SEE DETAIL) I I ' PHASE 1 AND 2 SITE ENTAiANCE I r" �— ow— cmu— — REMOTE SCALE — CONVERTED OFFICE I ✓ ` ` .- (FORMER HOUSE) I s — PARKING Si ❑ _ Z$ i F- ( 6 5;; ; I 2 El r _ El r — , MINING SCHEDULE PHASE ACREAGE RESERVE (TONS) YEARS TO MINE* 1A 1.72 76,500 0.10 18 26.42 1,300,300 2.50 2 16.86 829,200 1.75 3A 39.50 1,959,600 4,00 3B 25.66 1,262,000 2.79 * SEE NOTE 9 NOTES: 1. TOPOGRAPHICAL CONTOURS TAKEN FROM VS65 SILT COLORADO QUADRANGLE AT 20' CONTOUR INTERVALS AND INTERPOLATED AT 5' CONTOUR INTERVALS. 2. APPROXIMATE DEPTH OF MINED AREA I5 25 FEET WITH 2.5H:1V SIDE SLOPES. THE OPERATOR WILL MINE TO 2.5:1 SLOPES, OR RECOVERY TO NEAR - VERTICAL SLOPES, WHERE PRACTICAL, GIVEN LIMITED OVERBURDEN ND LIMITED STOCKPILING FOOTPRINT. OVERBURDEN AND TOPSOIL MATERIAL USED FOR SCREENING BERMS DURING MINING WILL BE BACKFILL PLACED ALONG SHORELINE CROSS- SLOPES DURING FINAL RECLAMATION TO ACHIEVE FINAL SLOPES OF 3:1 AND 2:1, AS IDENTIFIED IN THE RECLAMATION PLAN. 3. PHASE IA MINING TO GENERATE INITIAL SCREENING AND PROVIDE LANDSCAPE / WATER FEATURE AS BUFFER TO EAST. PHASE 1A MAY BE LIMITED IN DEPTH OR EXTENT TO SPECIFICALLY MEET THESE FUNCTIONAL NEEDS, 4. RESERVE QUALITY. THE PROPERTY CONTAINS RELATIVELY HOM06ENOUS SAND AND NATURAL GRAVEL DEPOSIT ABOVE 25 FEET BELOW GRADE, WITH INTERMINGLED LARGER ROCK 5. DEWATERING AND RECHARGE. THE SITE WILL BE DRY -MINED OR OTHERWISE DEWATERED TO PROVIDE MACHINE ACCESS TO THE AGGREGATE RESOURCE. PUMPED WATER WILL BE DIRECTED TO A SUMP AREA (AFTER INITIAL RESOURCE RECOVERY IN SUMP FOOTPRINT AND CONSTRUCTION OF COFFERDAM) FOR CLARIFICATION AND USE IN WETLAND RECHARGE OR DISCHARGE TO COLORADO RIVER IN ACCORDANCE WITH Pt PERMITS FROM OTHER AGENCIES (E.G. ARMY CORPS OF ENGINEER'S, COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT). 6. INTERNAL HAULING. THE OPERATOR WILL COOPERATIVELY USE DEVELOPED GAS ROADS AS INTERNAL ACCESS AND HAUL ROUTES, AS APPROPRIATE. 7. TOTAL SURFACE AREA SUBJECT TO MINED LAND RECLAMATION PERMITTING, AS ILLUSTRATED, I5163.31 ACRES. B. BASED ON LIMITED OVERBURDEN COVERAGE ON DEPOSIT, THE OPERATOR MAY MINE TO 2.5H:IV SLOPES FOR FINAL RECLAMATION SLOPES. GIVEN AVAILABLE OVERBURDEN FOR CONCURRENT RECLAMATION, THE OPERATOR MAY ALSO MINE TO NEARLY VERTICAL AND BACKFILL TO FINAL RECLAMATION SLOPE. 9. MINING SCHEDULE ASSUMES MAXIMUM RECOVERY OF DEPOSIT AND 500,000 TONS / YEAR MARKET DEMAND. ACTUAL MARKET CONDITIONS AND MINING SCHEDULE MAY VARY. 10. ASPHALT AND / OR CONCRETE PLANT FACILITIES MAY BE LOCATED IN THE PHASE 1 / 3 PROCESSING AREAS. THE PROCESSING AREA MAY ALSO CONTAIN TRUCK PARKING, EQUIPMENT STORAGE, AND OTHER ACCESSORY USES. THI5 AREA WILL BE PREPARED BY REMOVING ALL TOPSOIL AND OTHER MATERIALS SUITABLE FOR RECLAMATION, REPLACING THE WORKING SURFACE WITH FILL AS NEEDED. 24' TYPICAL CROSS - SECTION OF SCREENING BERMS NTS TOP OF CUT MINE FLOOR THE OPERATOR MAY MINE TO LIMIT OF EXCAVATION AT OR NEAR VERTICAL SLOPES (SEE NOTE 8) ! PIT EDGE TYPICAL EXCAVATION SLOPE DETAIL NTS Permit #: A- 2-ea(o -O`f (p Confidental ?: — Class: Pe! art ii Type -Seq.: From: S 1 -Tt,3d r To: (L PREPARED UNDER THE SUPERVISION OF: Doc. Name: An', ^ ,., A J .n "L /J Doc. Date (if no date tamp): Specialist: r`')?, IeMlp� RECEIVED MAY 17 2006 Division of Minerals and Geolopy NAME TITLE DATE EXHIBIT C -2: MINING PLAN MAP ON BANKS AND GESSO, LLC SILT SAND GRAVEL L.L.C. GRAND RIVER PARK PROJECT 720 KIPLING ST., SUM 117 DMG 112 PERMIT APPLICATION LAKEWOOD, COLORADO 80215 (303) 274 -4277 0304 HIGHWAY 133 CARBONDALE,CO 81623 GARFIELD COUNTY COLORADO (970) 963 -22% JOB NO DATE SCALE DRAWN BY DESIGNED BY APPROVAL REV SHEET 05021 5/15/06 1" =200' hDF