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2.0 HAUL ROAD
<br />4.0 CONSTRUCTION OF MINE BENCH FILL
<br />4.1 GENERAL
<br />4.1.1 FILL SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE NOTES AND DETAILS SPECIFIED ON
<br />THE DRAWINGS.
<br />5.3 'HAUL ROAD
<br />5.3.1 THE HAUL ROAD SHALL BE INSPECTED DURING CONSTRUCTION AND CERTIFIED AFTER CON-
<br />STRUCTION BY A QUALIFIED REGISTERED PROFESSIONAL ENGINEER.
<br />2.1 GENERAL
<br />4.2 SITE INSPECTION AND PREPARATION
<br />2.1.1 A HAUL ROAD FOR ACCESS TO THE MINE BENCH AND APPURTENANT STRUCTURES SHALT. BE CON-
<br />STRUCTED AT THE LOCATION SHOWN AND ACCORDING TO THE NOTES AND DETAILS SPECIFIED 4.2.1 ALL ROOTS, STUMPS, VEGETATION, OR OTHER ORGANIC MATERIALS WHICH REMAIN AFTER RE-
<br />MOVAL OF TOPSOIL AND WHICH COULD CONTRIBUTE TO SPONTANEOUS COMBUSTION OR INTER-
<br />FERE WITH THE SYSTEMATIC CONSTRUCTION OF THE FILL SHALL BE REMOVED PRIOR TO
<br />2.1.2 THE CONSTRUCTION, MAINTENANCE, AND POST- MINING CONDITION OF THE ACCESS ROAD SHALL PLACEMENT OF ANY FILL.
<br />INCLUDE ADEQUATE CONTROL of EROSION, SILTATION, AND POLLUTION OF WATER. 4.2.2 ANY SOFT OR WEAK SOILS WHICH ARE LOCATED IN CRITICAL AREAS OF THE FOUNDATION AND
<br />WHICH COULD, IN THE OPINION OF THE INSPECTING ENGINEER, INFLUENCE THE STABILITY
<br />2.2 SITE PREPARATION OF THE FILL, SHALL BE REMOVED PRIOR TO PLACEMENT OF ANY FILL.
<br />2.2.1 ALL VEGETATION, ROOTS, AND STUMPS SHALL. BE REMOVED. TOPSOIL SHALL BE REMOVED 4.2.3 ROATCAP CREEK SHALL BE DIVERTED AROUND ANY FILL MATERIAL PRIOR TO CONSTRUCTION OF ' • IVIED
<br />FROM THE DESIGN ROADBED AND ASSOCIATED CUTS AND FILES, AND STOCKPILED IN ACCOR- THE 48 -INCH CSP CULVERT FOR DIVERSION THROUGH THE FILL. NO FLOW OR SEEPAGE FROM �r
<br />DANCE WITH SECTION 1.0, TOPSOIL, OF THESE SPECIFICATIONS. TOPSOIL. STORAGE SHALL THE TEMPORARY DIVERSION SHALL BE ALLOWED TO ENTER THE FILL OR FOUNDATION BELOW 10 jl*:!
<br />BE AT THE LOCATION INDICATED ON THE DRAWINGS. THE CONSTRUCTED FILL. Wft
<br />4.2.4 DRAINAGE OF THE CLEARED FOUNDATION SHALL ENSURE THAT STANDING WATER DOES NOT REAM ow1apq
<br />2.3 CONSTRUCTION ACCUMULATE AT ANY LOCATION ON THE FOUNDATION.
<br />2.3.1 ROAD FILLS SHALL BE CONSTRUCTED IN HORIZONTAL LAYERS. EACH LAYER OF FILL SHALL 4.2.5 SURFACE WATER FROM WITHIN THE FOUNDATION AREA SHALL BE DIRECTED TO THE OUTSIDE OF
<br />BE LEVELED AND COMPACTED EVENLY BY ROUTING HAULING AND LEVELING EQUIPMENT OVER THE FILL AND DRAINED AWAY FROM THE FILL AND ITS FOUNDATION AT ALL TIMES DURING
<br />THE ENTIRE WIDTH OF THE EMBANKMENT UNTIL NO SIGNIFICANT MOVEMENT OF THE EMBANK- CONSTRUCTION OF THE FILL.
<br />MENT MATERIAL IS APPARENT. 4.2.6 THE SLOPE OF THE FOUNDATION IN THE VICINITY OF THE TOE OF ANY FILL OR EMBANKMENT
<br />2.3.2 RETAINING STRUCTURES SHALL BE CONSTRUCTED IN ACCORDANCE WITH DESIGN SPF.CIFICA_ SHALL NOT EXCEED 1(V):2.8(H) (36 PERCENT).
<br />TIONS. 4.2.7 SOILS EXPOSED IN THE FOUNDATION EXCAVATION SHALL BE COMPACTED PRIOR TO PLACEMENT
<br />2.3.3 THE HAUL ROAD SHALL BE SURFACED WITH A MATERIAL SUFFICIENTLY DURABLE FOR THE OF FILL.
<br />ANTICIPATED VOLUME, WEIGHT, AND SPEED OF ANTICIPATED TRAFFIC AND WHICH Is NOT q,2,g ANY FOUNDATION MODIFICATIONS DETERMINED TO BE NECESSARY AS A RESULT OF THE SITE
<br />ACID- OR TOXIC-FORMING. INVESTIGATION AND FOUNDATION STABILITY ANALYSES SHALL BE COMPLETED PRIOR TO THE
<br />PLACEMENT OF ANY =ILL ON THE AREA OF THE FOUNDATION REQUIRING MODIFICATION. tMEFMA
<br />2.4 MAINTENANCE•••isYE'9. X60
<br />q ?1lps�'�P y�
<br />2.4.1 THE HAUL ROAD SHALL BE MAINTAINED SUCH THAT THE DESIGN STANDARDS ARE MET THROUGH- 4.3 CONSTRUCTION • /v�'- �-
<br />sn 15888
<br />OUT ITS LIFE.
<br />4.3.1 SHALL APPROXIMATELY
<br />IN
<br />THICKNESS AND COMPACTED BY ROUTING HORIZONTAL LAYERS O INCHES
<br />NGCONSTRUCTIONEQUIPMEENTUNIFORMLY OVER 39j:;�oNAt-
<br />SURFACE OF THE PILE. .... •OQpop
<br />,, F coo COLORADO WESTMORELAND INC.
<br />4.3.2 COMPACTED FILL SHALL HAVE A DRY DENSITY OF AT LEAST 90 PERCENT OF THE MAXIMUM DRY P.O. BOX 1299
<br />DENSITY AS DETERMINED BY THE AASHTO SPECIFICATION T99 -74 ( "STANDARD PROCTOR ") OR PAONIA, COLORADO 81428
<br />AS DIRECTED IN CONSTRUCTION DRAWINGS. FINE WASTE MATERIAL IN EXCESS OF THE PER- DATE CHECKED REVISION
<br />CENTAGES ASSUMED IN DEVELOPING SHEAR STRENGTH PARAMETERS FOR THE WASTE MATERIAL ORCN4AP VAL.CEV �ESj PoRfALS DES1GruS
<br />SHALL NOT BE INCORPORATED INTO THE OUTER 50 FEET OF THE PILE OUTSLOPE. _ 0/9/ MSN CH. TOPSOIL,HAUL ROAD,FILL _SkEET NO. 10 /OF /O
<br />4.3.3 SURFACE DRAINAGE OF THE FILL SHALL BE MAINTAINED THROUGHOUT CONSTRUCTION BY GRAD- *SPEC I F I CATIONS
<br />ING THE SURFACE TO A MINIMUM SLOPE OF 2 PERCENT AND INSURING THAT NO SURFACE
<br />DEPRESSIONS EXIST.
<br />004437
<br />1.0 TOPSOIL
<br />3.0 SEDIMENTATION POND
<br />3.1
<br />GENERAL
<br />1.1
<br />GENERAL
<br />3.1.1
<br />THE SEDIMENTATION POND SHALL BE CONSTRUCTED IN ACCORDANCE WITH THESE DRAWINGS.
<br />4.3.4
<br />No FILL SHALL BE PLACED ON STANDING WATER, SNOW, OR ICE, NOR SHALL ANY SNOW OR
<br />1.1.1
<br />ALL TOPSOIL SHALL BE REMOVED AND SEGREGATED FROM OTHER MATERIAL AFTER VEGETATION
<br />ICE BE INCORPORATED IN THE FILL.
<br />COVER IS CLEARED BUT BEFORE ANY EXCAVATION OR OTHER SURFACE DISTURBANCE.
<br />3.2
<br />SITE PREPARATION
<br />4.3.5
<br />THE CSP CULVERT AND APPURTENANT STRUCTURES FOR DIVERSION OF ROATCAP CREEK THROUGH
<br />1.1.2
<br />VEGETATION COVER SHALL BE REMOVED ONLY FROM THOSE AREAS FROM WHICH IT IS NECES-
<br />THE FILL SHALL BE CONSTRUCTED AT THE LOCATION AND GRADES DETERMINED BY THE CUL-
<br />SARY TO REMOVE TOPSOIL. THE AREA OF DISTURBANCE SHOULD BE MINIMIZED TO THE
<br />3.2.1
<br />ALL VEGETATION, ROOTS, AND STUMPS SHALL BE REMOVED. TOPSOIL SHALL BE REMOVED
<br />VERT DESIGNER. BEDDING PREPARATION AND COMPACTION OF FILL AROUND THE CULVERT
<br />EXTENT POSSIBLE.
<br />FROM THE POND AREA AND STOCKPILED IN ACCORDANCE WITH SECTION 1.0, TOPSOIL, OF
<br />SHALL BE COMPLETED IN ACCORDANCE WITH THE CULVERT DESIGNER'S SPECIFICATIONS.
<br />THESE SPECIFICATIONS. TOPSOIL STORAGE SHALL BE AT THE LOCATION INDICATED ON THE
<br />1.1.3
<br />TOPSOIL SHALL BE REMOVED FROM THE AREAS OF THE PROPOSED SEDIMENTATION POND, HAUL
<br />DRAWINGS.
<br />4.3.6
<br />THE FILL OUTSLOPE SHALL BE HYDROSEEDED TO PROMOTE REVEGETATION AND EROSION
<br />ROAD, AND THE MINE BENCH CUT AND FILL ON THE WEST SIDE OF EAST ROATCAP CREEK.
<br />CONTROL.
<br />3.2.2
<br />ANY SOFT OR WEAK SOILS WHICH ARE LOCATED IN CRITICAL AREAS OF THE PONDS AND WHICH
<br />1.1.4
<br />A TOTAL THICKNESS OF 32 INCHES OF TOPSOIL SHALL BE REMOVED ON THE WEST SIDE OF
<br />COULD, IN THE OPINION OF THE INSPECTING ENGINEER, INFLUENCE THE STABILITY OF THE
<br />4.3.7
<br />THE THICKNESS OF A TOPOSOIL LAYER PLACED ON OUTSLOPES OF FILL SHALL NOT EXCEED 4
<br />EAST ROATCAP CREEK. NO TOPSOIL. WILL BE REMOVED ON THE EAST SIDE OF EAST ROATCAP
<br />PONDS, SHALL BE REMOVED PRIOR TO CONSTRUCTION.
<br />FEET.
<br />CREEK.
<br />3.3
<br />CONSTRUCTION
<br />4.4
<br />INSPECTIONS
<br />1.2
<br />REMOVAL
<br />3.3.1
<br />THE EMBANKMENT SHALL BE CONSTRUCTED FROM FINE - GRAINED, ON -SITE COLLUVIAL SOILS.
<br />4.4.1
<br />THE FILL SHALL BE INSPECTED DURING CONSTRUCTION IN ACCORDANCE WITH SECTION 5.0,
<br />1.2.1
<br />TOPSOIL SMALL BE EXCAVATED AND REMOVED IN A MANNER WHICH WILL MINIMIZE CONTAMI-
<br />NO ROCKS LARGER THAN 6 INCHES MAXIMUM DIMENSION SHOULD BE INCORPORATED INTO THE
<br />INSPECTIONS, OF THESE SPECIFICATIONS.
<br />NATION WITH OTHER SOIL HORIZONS OR WITH BEDROCK.
<br />FILL. NO ROOTS, STUMPS, ORGANIC, OR OTHERWISE DELETERIOUS MATERIALS SHALL BE
<br />INCORPORATED INTO THE FILLS.
<br />1.2.2
<br />SUCH MEASURES AS ARE NECESSARY WILL BE TAKEN TO INSURE THAT REMOVAL OF TOPSOIL
<br />DOES DOES NOT RESULT IN EROSION OR WATER POLLUTION.
<br />3.3.2
<br />FILL SHALL BE PLACED IN HORIZONTAL LAYERS NOT EXCEEDING 12 INCHES IN LOOSE
<br />THICKNESS AND COMPACTED BY ROUTING CONSTRUCTION EQUIPMENT UNIFORMLY OVER THE
<br />SURFACE OF THE FILL.
<br />1.3
<br />STORAGE
<br />3.3.3
<br />THE COMPACTED EMBANKMENT SHALL HAVE A DRY DENSITY OF AT LEAST 95 PERCENT OF THE
<br />1 .3.1
<br />SALVAGED TOPSOIL WILL BE PLACED IN LAYERS NOT EXCEEDING 4 FEET ON OUTSLOPES oe
<br />MAXIMUM DRY DENSITY AS DETERMINED BY THE AMERICAN ASSOCIATION OF STATE HIGHWAYS
<br />THE MINE. BENCH FILL. REMAINING TOPSOIL WILL BE PLACED IN A LIVE TOPSOIL STORAGE
<br />AND TRANSPORTATION OFFICIALS (AASHTO) SPECIFICATION T99 -74 ( "STANDARD PROCTOR ").
<br />AREA ADJOINING THE MINE SITE.
<br />3.3.4
<br />FILL PLACED AROUND PIPES, CULVERTS, OR OTHER STRUCTURES INCLUDED WITHIN THE
<br />5.0 INSPECTION
<br />1.3.2
<br />STOCKPILED TOPSOIL SHALL BE PROTECTED BY AN EFFECTIVE COVER OF NON- NOXIOUS,
<br />EMBANKMENT SHALL MEET THE SAME PLACEMENT AND COMPACTION CRITERIA AS ALL OTHER
<br />QUICK - GROWING, ANNUAL AND PERENNIAL PLANTS SEEDED OR PLANTED DURING THE FIRST
<br />FILL.
<br />APPROPRIATE GROWING SEASON AFTER REMOVAL FOR FAVORABLE PLANTING CONDITIONS.
<br />5.1
<br />SEDIMENTATION PONDS
<br />3.3.5
<br />THE DISTRIBUTION OF MATERIALS IN THE EMBANKMENT SHALL BE SUCH THAT THERE ARE NO
<br />1.3.3
<br />STOCKPILED TOPSOIL AND OTHER MATERIALS SHALL NOT BE MOVED UNTIL REQUIRED FOR
<br />LENSES, POCKETS, OR STREAKS OF MATERIAL DIFFERING SUBSTANTIALLY FROM THE SUR-
<br />5.1.1
<br />THE SEDIMENTATION PONDS SHALL BE INSPECTED DURING CONSTRUCTION AND CERTIFIED
<br />REDISTRIBUTION ON A REGRADED AREA.
<br />ROUNDING FILL.
<br />AFTER CONSTRUCTION BY A QUALIFIED REGISTERED PROFESSIONAL ENGINEER.
<br />1.3.4
<br />THE STORED TOPSOIL SHALL BE CLEARLY MARKED BY A SIGN "TOPSOIL STORAGE ".
<br />3.3.6
<br />FILL SHALL NOT BE PLACED ON FROZEN SURFACES, NOR SHALL SNOW, ICE, OR FROZEN
<br />5.1.2
<br />CERTIFICATION OF THE CONSTRUCTED PONDS SHALL BE FORWARDED TO THE COLORADO MINED
<br />MATERIAL BE INCORPORATED INTO THE FILL.
<br />LAND RECLAMATION DIVISION FOLLOWING CONSTRUCTION.
<br />1.4
<br />REDISTRIBUTION
<br />3.4
<br />MAINTENANCE
<br />5.2
<br />MINE BENCH FILL
<br />1.4.1
<br />AFTER FINAL GRADING AND BEFORE REPLACEMENT OF TOPSOIL AND OTHER MATERIALS,
<br />REGRADED LAND SHALL BE LOOSENED BY MECHANICAL MEANS TO A SUFFICIENT DEPTH TO
<br />3.4.1
<br />THE SEDIMENTATION POND SHALL BE ROUTINELY MAINTAINED DURING MINING OPERATIONS.
<br />5.2.1
<br />FILL CONSTRUCTION SHALL BE INSPECTED THROUGHOUT THE CONSTRUCTION BY AN EXPERI-
<br />ELIMINATE SLIP SURFACES, RELIEVE COMPACTION, AND PROVIDE FOR ROOT PENETRATION.
<br />VEGETATION GROWTH SHALL BE CUT WHERE NECESSARY TO FACILITATE INSPECTIONS AND
<br />ENCED GEOTECHNICAL ENGINEER OR OTHER SUITABLY QUALIFIED PERSON WORKING UNDER THE
<br />REPAIRS. DITCHES AND SPILLWAYS SHALL BE MAINTAINED IN A CLEAN CONDITION.
<br />SUPERVISION OF A QUALIFIED REGISTERED PROFESSIONAL ENGINEER.
<br />1.4.2
<br />TOPSOIL AND OTHER MATERIALS SHALL BE REDISTRIBUTED IN A MANNER THAT:
<br />5.2.2
<br />INSPECTIONS SHALL INCLUDE MONITORING OF
<br />(A) ACHIEVES AN APPROXIMATE UNIFORM, STABLE THICKNESS CONSISTENT WITH POST-
<br />3.5
<br />INSPECTIONS
<br />MINING LAND USES, CONTOURS, THE SURFACE WATER DRAINAGE SYSTEM, AND RE-
<br />(A) REMOVAL OF ALL ORGANIC MATERIAL AND TOPSOIL;
<br />QUIREMENTS OF REVEGETATION:
<br />3.5.1
<br />ALL EMBANKMENT FILLS SHALL BE INSPECTED DURING CONSTRUCTICN AND OPERATION IN
<br />(B) FOUNDATION PREPARATION AND ANY NECESSARY FOUNDATION MODIFICATIONS;
<br />ACCORDANCE WITH SECTION 5.0, INSPECTIONS, OF THESE SPECIFICATIONS.
<br />(C) PLACEMENT AND COMPACTION OF FILL MATERIALS; AND
<br />(B) PREVENTS EXCESS COMPACTION AND CONTAMINATION OF TOPSOIL:
<br />(D) REVEGETATION.
<br />(C) MINIMIZES DETERIORATION OF THE BIOLOGICAL, CHEMICAL, AND PHYSICAL PROPER-
<br />5.2.3
<br />TEMPORARY DIVERSION OF ROATCAP CREEK AND INSTALLATION OF THE 48 -INCH CULVERT
<br />TIES OF THE TOPSOIL; AND
<br />THROUGH THE FILL SHALL BE INSPECTED BY A REPRESENTATIVE OF THE CULVERT DESIGNER.
<br />(D) PROTECTS THE TOPSOIL FROM WIND AND WATER EROSION DURING REDISTRIBUTION AND
<br />5.2.4
<br />COMPLETE CONSTRUCTION RECORDS SHALL BE MAINTAINED IN ORDER TO ENABLE CERTIFICA-
<br />BEFORE AND AFTER IT IS SEEDED AND PLANTED.
<br />TION THAT THE FILL HAS BEEN CONSTRUCTED IN ACCORDANCE WITH THE DESIGN.
<br />2.0 HAUL ROAD
<br />4.0 CONSTRUCTION OF MINE BENCH FILL
<br />4.1 GENERAL
<br />4.1.1 FILL SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE NOTES AND DETAILS SPECIFIED ON
<br />THE DRAWINGS.
<br />5.3 'HAUL ROAD
<br />5.3.1 THE HAUL ROAD SHALL BE INSPECTED DURING CONSTRUCTION AND CERTIFIED AFTER CON-
<br />STRUCTION BY A QUALIFIED REGISTERED PROFESSIONAL ENGINEER.
<br />2.1 GENERAL
<br />4.2 SITE INSPECTION AND PREPARATION
<br />2.1.1 A HAUL ROAD FOR ACCESS TO THE MINE BENCH AND APPURTENANT STRUCTURES SHALT. BE CON-
<br />STRUCTED AT THE LOCATION SHOWN AND ACCORDING TO THE NOTES AND DETAILS SPECIFIED 4.2.1 ALL ROOTS, STUMPS, VEGETATION, OR OTHER ORGANIC MATERIALS WHICH REMAIN AFTER RE-
<br />MOVAL OF TOPSOIL AND WHICH COULD CONTRIBUTE TO SPONTANEOUS COMBUSTION OR INTER-
<br />FERE WITH THE SYSTEMATIC CONSTRUCTION OF THE FILL SHALL BE REMOVED PRIOR TO
<br />2.1.2 THE CONSTRUCTION, MAINTENANCE, AND POST- MINING CONDITION OF THE ACCESS ROAD SHALL PLACEMENT OF ANY FILL.
<br />INCLUDE ADEQUATE CONTROL of EROSION, SILTATION, AND POLLUTION OF WATER. 4.2.2 ANY SOFT OR WEAK SOILS WHICH ARE LOCATED IN CRITICAL AREAS OF THE FOUNDATION AND
<br />WHICH COULD, IN THE OPINION OF THE INSPECTING ENGINEER, INFLUENCE THE STABILITY
<br />2.2 SITE PREPARATION OF THE FILL, SHALL BE REMOVED PRIOR TO PLACEMENT OF ANY FILL.
<br />2.2.1 ALL VEGETATION, ROOTS, AND STUMPS SHALL. BE REMOVED. TOPSOIL SHALL BE REMOVED 4.2.3 ROATCAP CREEK SHALL BE DIVERTED AROUND ANY FILL MATERIAL PRIOR TO CONSTRUCTION OF ' • IVIED
<br />FROM THE DESIGN ROADBED AND ASSOCIATED CUTS AND FILES, AND STOCKPILED IN ACCOR- THE 48 -INCH CSP CULVERT FOR DIVERSION THROUGH THE FILL. NO FLOW OR SEEPAGE FROM �r
<br />DANCE WITH SECTION 1.0, TOPSOIL, OF THESE SPECIFICATIONS. TOPSOIL. STORAGE SHALL THE TEMPORARY DIVERSION SHALL BE ALLOWED TO ENTER THE FILL OR FOUNDATION BELOW 10 jl*:!
<br />BE AT THE LOCATION INDICATED ON THE DRAWINGS. THE CONSTRUCTED FILL. Wft
<br />4.2.4 DRAINAGE OF THE CLEARED FOUNDATION SHALL ENSURE THAT STANDING WATER DOES NOT REAM ow1apq
<br />2.3 CONSTRUCTION ACCUMULATE AT ANY LOCATION ON THE FOUNDATION.
<br />2.3.1 ROAD FILLS SHALL BE CONSTRUCTED IN HORIZONTAL LAYERS. EACH LAYER OF FILL SHALL 4.2.5 SURFACE WATER FROM WITHIN THE FOUNDATION AREA SHALL BE DIRECTED TO THE OUTSIDE OF
<br />BE LEVELED AND COMPACTED EVENLY BY ROUTING HAULING AND LEVELING EQUIPMENT OVER THE FILL AND DRAINED AWAY FROM THE FILL AND ITS FOUNDATION AT ALL TIMES DURING
<br />THE ENTIRE WIDTH OF THE EMBANKMENT UNTIL NO SIGNIFICANT MOVEMENT OF THE EMBANK- CONSTRUCTION OF THE FILL.
<br />MENT MATERIAL IS APPARENT. 4.2.6 THE SLOPE OF THE FOUNDATION IN THE VICINITY OF THE TOE OF ANY FILL OR EMBANKMENT
<br />2.3.2 RETAINING STRUCTURES SHALL BE CONSTRUCTED IN ACCORDANCE WITH DESIGN SPF.CIFICA_ SHALL NOT EXCEED 1(V):2.8(H) (36 PERCENT).
<br />TIONS. 4.2.7 SOILS EXPOSED IN THE FOUNDATION EXCAVATION SHALL BE COMPACTED PRIOR TO PLACEMENT
<br />2.3.3 THE HAUL ROAD SHALL BE SURFACED WITH A MATERIAL SUFFICIENTLY DURABLE FOR THE OF FILL.
<br />ANTICIPATED VOLUME, WEIGHT, AND SPEED OF ANTICIPATED TRAFFIC AND WHICH Is NOT q,2,g ANY FOUNDATION MODIFICATIONS DETERMINED TO BE NECESSARY AS A RESULT OF THE SITE
<br />ACID- OR TOXIC-FORMING. INVESTIGATION AND FOUNDATION STABILITY ANALYSES SHALL BE COMPLETED PRIOR TO THE
<br />PLACEMENT OF ANY =ILL ON THE AREA OF THE FOUNDATION REQUIRING MODIFICATION. tMEFMA
<br />2.4 MAINTENANCE•••isYE'9. X60
<br />q ?1lps�'�P y�
<br />2.4.1 THE HAUL ROAD SHALL BE MAINTAINED SUCH THAT THE DESIGN STANDARDS ARE MET THROUGH- 4.3 CONSTRUCTION • /v�'- �-
<br />sn 15888
<br />OUT ITS LIFE.
<br />4.3.1 SHALL APPROXIMATELY
<br />IN
<br />THICKNESS AND COMPACTED BY ROUTING HORIZONTAL LAYERS O INCHES
<br />NGCONSTRUCTIONEQUIPMEENTUNIFORMLY OVER 39j:;�oNAt-
<br />SURFACE OF THE PILE. .... •OQpop
<br />,, F coo COLORADO WESTMORELAND INC.
<br />4.3.2 COMPACTED FILL SHALL HAVE A DRY DENSITY OF AT LEAST 90 PERCENT OF THE MAXIMUM DRY P.O. BOX 1299
<br />DENSITY AS DETERMINED BY THE AASHTO SPECIFICATION T99 -74 ( "STANDARD PROCTOR ") OR PAONIA, COLORADO 81428
<br />AS DIRECTED IN CONSTRUCTION DRAWINGS. FINE WASTE MATERIAL IN EXCESS OF THE PER- DATE CHECKED REVISION
<br />CENTAGES ASSUMED IN DEVELOPING SHEAR STRENGTH PARAMETERS FOR THE WASTE MATERIAL ORCN4AP VAL.CEV �ESj PoRfALS DES1GruS
<br />SHALL NOT BE INCORPORATED INTO THE OUTER 50 FEET OF THE PILE OUTSLOPE. _ 0/9/ MSN CH. TOPSOIL,HAUL ROAD,FILL _SkEET NO. 10 /OF /O
<br />4.3.3 SURFACE DRAINAGE OF THE FILL SHALL BE MAINTAINED THROUGHOUT CONSTRUCTION BY GRAD- *SPEC I F I CATIONS
<br />ING THE SURFACE TO A MINIMUM SLOPE OF 2 PERCENT AND INSURING THAT NO SURFACE
<br />DEPRESSIONS EXIST.
<br />004437
<br />
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