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CALL UTILITY NOTIFICATION <br /> CENTER OF COLORADO <br /> LINE LEGEND : <br /> 00 <br /> J <br /> CD <br /> CALL 2—BUSINESS DAYS IN ADVANCE EXISTING RIGHT OF WAY 0 <br /> SHERLEY ANN CHARLETTE HOSHIKO BEFORE YOU DIG, GRADE, OR EXCAVATE <br /> McELROY CARLSON FARMS, INC. FOR THE MARKING OF UNDERGROUND <br /> FUTURE ACCESS MEMBER UTILITIES. 0 <br /> ROAD EXISTING ROADWAY CENTERLINE <br /> PROPSED SLURRY VERNIE & Z5^ <br /> WALL ALIGNMENT SYLVIA PARKER <br /> ......, MINE PERMIT 4 6;5-- EXISTING INDEX CONTOUR V) LLJ <br /> so ma\ BOUNDARY C <br /> An Vat am v <br /> am av no mw--" <br /> go <br /> WA ——— — — — — — — — — —— — ——— EXISTING MINOR CONTOUR <br /> on =77t <br /> SKI am EXISTING PERMIT BOUNDARY <br /> EXISTING PROPERTY LINE 0— 00 <br /> 0 <br /> W- 1 <br /> SORIN NATURAL W W W EXISTING WATER LINE <br /> RESOURCE <br /> A6 PARTNERS, LLC EXISTING FENCE LINE c 2014 <br /> PROPOSED 5 FOOT CONTOUR <br /> PROPOSED 1 FOOT CONTOUR <br /> 1 1M�REA4,GETA�bN,6IMI z <br /> )(5- BELO M AX WATER ELEVOON) I I,l, I I F_ <br /> 0 <br /> MA MUM �06T_ERII < <br /> SURFACE ELEVI1146321 2L <br /> R FEEr 2111 z <br /> 1�, < <br /> EL 04 z <br /> NOTES: < <br /> SLURRY WALL NOTES: <br /> 1. ALL PROPOSED CONTOURS SHOWN ARE BASED ON THE APPROVED iii En <br /> FUTURE ACCESS DIVISION OF MINING RECLAMATION & SAFETY PERMIT NUMBER 1. Bentonite Specifications: <br /> M-1985-112 AND INCLUDE THE AMENDED AREA TO BE MINED.ROADIII YP/PV ratio API Std. 13A Less than 3 0) 0 <br /> Viscometer greater than 30 <br /> 2. OIL AND GAS FACILITIES ARE SHOWN WITH PERMANENT ACCESS Filtrate Loss less than 15 cm3 <br /> AND MAY BE MINED AT A LATER DATE. <br /> Moisture Content ASTM D2216 less than 10 percent <br /> 3. ALL SLOPES ARE TO BE GRADED TO A RECLAIMED SLOPE OF <br /> 2. Water Specifications: <br /> C*�9 II 3H:1 V. pH 6-8 <br /> Hardness less than 200 ppm <br /> BRIAN 4. NOMINAL TOPSOIL DEPTH ON SITE IS 0" — 18" WITH AN AVERAGE Total Dissolved Solids less than 500 ppm <br /> HARRELL (3) IIII DEPTH OF 6" WHERE MINING HAS NOT OCCURRED. Oil, Organics, Acids, Alkali less than 50 ppm each <br /> Chloride report <br /> P!T lypi P XIM E 5. ALL STOCKPILES SHALL BE LOCATED OUTSIDE OF THE 100—YR <br /> OODPtAIN FLOODPLAIN. 3. Bentonite Slurry General Specifications: <br /> 0(AE� A QNTY dS) LIIII The initial bentonite slurry must be tested prior to placement in the L.LJ <br /> 6. THERE ARE NO OPERATIONAL IRRIGATION DITCHES ON—SITE. trench. The slurry may be mixed in high shear mixers or mixed and C:) <br /> hydrated in slurry hydration ponds. In general, a minimum Z 00 <br /> 7. THE AMENDED MINE PERMIT BOUNDARY IS 50' OFFSET FROM THE hydration time of 8 hours will allow the bentonite slurry to meet all LLJ <br /> PROPERTY LINE IN THE NORTHEAST CORNER, WHICH IS CONSISTENT criteria. A minimum bentonite content of 6 percent in the > 0 <br /> 4/ WITH THE ORIGINAL MINE PERMIT BOUNDARY ALONG THE SOUTH AND slurry by weight is required. <br /> LL_ < ( ) <br /> WEST PROPERTY LIMITS. LL_ <br /> 4. Bentonite Slurry Testing Specifications before Placement: 0 <br /> AB II 8. SEED MIX DESIGN PROVIDED BY THE GREELEY NRCS FIELD OFFICE Viscosity Measured w/Marsh Funnel (API RP 13B-1) _j < LLJ'TRUCK SHALL BE UTILIZED IN THE AREAS TO BE RE—VEGETATED. THE MIX less than 40 sec 0 (f) _j <br /> SCALE I DESIGN IS FOR SANDY SOILS AND IS ATTACHED IN EXHIBIT E OF THE Density less than 64 pcf _j _j LLJ <br /> M-1985-112 MINE PERMIT AMENDMENT APPLICATION. Filtrate Loss less than 20 cm3 < LLJ <br /> -------- cc pH 6.5 to 10 <br /> AB <br /> C The test listed above should be run 1 or 2 times per shift and at <br /> z least once per batch of slurry. The slurry must be further tested after <br /> placement in the trench. The test conducted are for viscosity, <br /> PROPOSED DRAINAGE density, sand content, and pH. Two sets of tests per shift at two <br /> DITCH ALIGNMENTli )CP locations in teh trench (approximately 2 feet below the slurry <br /> 24" CMP M <br /> INV=4634.1 :EN: Z surface and 2 feet above the bottom of the trench) are required. If <br /> the density of the slurry in trench exceeds 85 pcf, the excess solids <br /> ELECTRICAL must be removed by desanding, or the slurry replaced with fresh <br /> :FRANSMISSIGN TOWER slurry. The slurry level must be maintained at least 3 feet above the <br /> DUST & DIRT ground water elevation and no more than two feet below the working <br /> -� Z--_ —VAtVE-HOUSfNC <br /> 24" CMP 114:- - - -- - - EXCAVATING, LLC <br /> INV=4634.1 CRUDE—Olt platform. <br /> WATER TANK 5. Bentonite Slurry Testing Specifications after Placement: <br /> WELL/14EAP L A <br /> DI / Unit Weight 1.03-1.40 g/cm3 LLJ <br /> S SE�ERA�OR Sand Content ASTM D4381-84 10-20 percent by volume <br /> OFF SANDS #1�, <br /> 6. Soil—Bentonite Backfill Specifications: <br /> S—B Slump ASTM C143 1 set per 100 yd3 z LLJ < <br /> _j <br /> �-QRIEE ARE )FIEN'tr Slump 2-6 inches Q IL <br /> S—B Gradation 1 set per 300 yd3 LU < LL_ z <br /> Screen (US Std) Percent by Weight <br /> M cNvW M <br /> 3 in 100 0 W <br /> 50.0 <br /> zz #4 40-80 ;z 0 <br /> ­c z: <br /> 2 OVERBURDEN AND TOPSOIL SACKFILL #40 25-60 LU D� 0 X :E <br /> D ALL DISTURBED AREAS TO WATER SURFACE - Li <br /> IV M 25.0— F� LIJ < <br /> 0 #200 20-40 <br /> z a- <br /> LAWRENCE & :J 0 <br /> 0 <br /> LOTS MONROE Xffi Minimum Plasticity Index of 10 Li <br /> WATER SURFACE <br /> E 7. Key Trench and Slurry Wall Cap Specifications: <br /> PIT a- stop During excavation, sounding should be obtained to determine the <br /> elevations of the top of the key layer, the bottom of the excavation, <br /> and the bottom of the trench prior to backfilling. If sediments in <br /> ACCESS NATIVE SOIL excess of 2 inches have accumulated, it is necessary to clean the <br /> trench bottom by airlift pumps or excavation equipment to 0 <br /> remove the sand and sediment that has settled. The trench bottom <br /> should be cleaned, as a minimum, at the beginning of each shift. <br /> Sounding should be obtained approximately every 20 feet. <br /> U BEDROCK <br /> Adequate keying In the S—B backfill to an impermeable layer at the <br /> base of the wall will be required and specified in the final design report ------ <br /> for the slurry wall. The design documents will include a description <br /> of the key in layer and describe how trench cuttings or other <br /> observations will be used to assure the slurry wall will be adequately <br /> 24" C TYPICAL SECTION SLURRY WALL keyed. Temporary slurry wall protection will be required in the form of a <br /> INV=46 .7 <br /> non—compacted soil cover placed within one day over each backfilled 100 <br /> X�n foot reach. The temporary cover is removed after settlement <br /> (approximately 2 weeks) and replaced with a compacted clay cover over <br /> 24" CMP the completed slurry wall. <br /> INV=4631.4 an ® M M M ON In W W IN ME S, <br /> Rlla- 00 M <br /> 10" STEEL PIPE 8. Post Construction Testing: <br /> I — J <br /> NV=46 33.0 R F4 a 0 0 Post construction testing will be conducted in accordance with the <br /> STEEL PIPE ELECTRICAL FUTURE ACCESS Colorado State Engineers Office, <br /> V ELECTRICAL INV=4633.9 TRANSMISSION TOWER DATE: 72/3O/t4 <br /> ROAD 9. The above Specifications are provided as a general guideline for the <br /> DESIGN: JSV <br /> TRANSMISSION TOWER permitting process. Final specifications and design criteria will be DRAWN: JSV <br /> ROBERT KARL DIANA GLOBAL ASSET developed during the the final design of the slurry wall. CHECKED: JSy <br /> FRANCIS KOHLHOFF TAYLOR I I RECOVERY, LLC <br /> SHEET NO. <br /> 100 0 100 200 <br /> EX - F <br /> ORIGINAL SCALE: 1"=1 00' 1 OF 7 <br />