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<br /> G MAximu 1
<br /> -2SLOPE I WASTE r1 TE2JAL ZJ/
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<br /> EN E2 ! -T?D (,� vd, t ��CAI..� I"�1001 —6100
<br /> s7QU� �f `6'� +l : SECTION 5 - E/ OF PHASE LI MILE
<br /> H02 ZONTAL AND VFQTKAL
<br /> I
<br /> I MU MWc M
<br /> I Boo— SLOPE _ 9,300
<br /> N \ \\' t E $ / Imo+\ + u I wA TE MA rE2JAL�
<br /> wE:E'T ZL. NrFr= \ ( c 1 _ 8200— \ Gevu o 100 Zoo —62d )
<br /> Z
<br /> SCALE I"= 100'
<br /> h-OIZ47CN7AL AND VFLTrr_AL
<br /> M• •.r • .rr ........... . . .. -...yr.
<br /> SECTION C-Cl OF f% -A:-f II PIKE
<br /> s 0 NOTES :
<br /> spas P`Oo \ ss \. I I 1 ) PROPERTIES OF WASTE MATERIAL AND MANCOS SHALE BEDRQCk TAKEN
<br /> '50 i FROM MORRI SON- KNUDSEN REPORT , "ENGINEERING EVALUATIONS , COAL
<br /> WASTE " TERIAL BASIN MINE'' . PROPERTIES OF COLLUVIAL SOILS WERE DERIVED FROM
<br /> /� FCF TRIAXIAL_ TESTING OF SAMPLES OBTAINED FROM BORING W- 11 SHOWN
<br /> A .,
<br /> 3to'?S 83°' 0 200' a,<.' o�Y _ o ON SHEET 2. SEE NOTE 4. 3, 2—OF-SPECIFICATIONS (SHEET ml
<br /> Fers I—Z 1 ' C. 2c5c pgF 2 ) AN ACCELERATION FACTOR OF 0 . 05 g WAS USED 1 .'R '�4E CARTN4UAKS.
<br /> a �cuE r'= 2 c' 1 oli
<br /> \ v0 / STABILITY ANALYSES .
<br /> v 0 fd�'JUttiO w,arg� LEVEL ��/ �,T�'/• 3 ) COLLUVIAL SOIL IN PILE FOUNDAT10 JATUOATED
<br /> 'S G / / !!-�11.Ud,AL poi,.
<br /> /FO¢ ANp r:� ua=FACE i �P =13'L vGF F J R STABILITY ANALYSES .
<br /> lit (f = ZIP
<br /> i L = loco P.-sr
<br /> LEGEND - �FOU�DPT
<br /> - � NtAnlcol-, sw�Ls aeDaxK-�
<br /> Zf S,r = IZI FY_F
<br /> \ L2"
<br /> `� 0 ioo' Zao'
<br /> LIMIT Or- I��II WASTE PILE �ECJIMENTA.TfC,t'.1 fib LGY�TION
<br /> C. - LGOO P��F
<br /> �
<br /> C�NTp 2 ON ei�` ` U 5U2FA[,E CJI= ` ,i LOCATION OF (¢p57-�EGTION SCALE i"=200'
<br /> 1l-oefE11 PILE v uevuC,k GIIE
<br /> lyOpaZpNTAL AND VE2T1( ay
<br /> U E5o2,ow Fl(_,U2E Q : STAEUTY ANALYSIS OF PJA5EII PIL.E
<br /> -rOF I � ALOiyU TION 8 - E' of
<br /> �TIe.EANE DI V EIZS I o N C 17987
<br /> �WA:5_rE P1L.E / r?EOt MINE-1) L.,,`87
<br /> 2.0 F% l�L.LF,G NOF GTION DIT4-1 �
<br /> -AR?r17yt�;N OI��tStON
<br /> FI(mUQE A: FLAN OF PHA� rI WASTE PILF-
<br /> .•... Z FT, M'.
<br /> NOTES
<br /> GENERAL NOTES )
<br /> e EXCAVATE TRENCH TO MINIMUM DIMENSIONS SHOWN ALONG NATURAL DRAINAGEWAY AS SHOWA
<br /> v 1
<br /> Ft2EE OEA11�iNG `, IN FIGURE A AND SPECIFIED IN GENERAL NOTE 3.
<br /> 1 ) PRIOR TO WASTE PLACEMENT (PHASE II PILE CONSTRUCTIO)N) , COMPLETE ALL CONSTRUCTION DETAILEDI�F11-I CNorE2)
<br /> ON SHEETS 3, 4, AND 5. 2) SUBDRAIN ROCKFILL SHALL CONSIST OF DURABLE, NON-DEGRADABLE ROCK MATERIAL.
<br /> 90 PERCENT OF THE MATERIAL SHALL BE OF 6 INCHES OR GREATER. MAXIMUM SIZE bF
<br /> i MATERIAL SHALL BE 12 INCHES.
<br /> 2) PRIOR TO WASTE PLACEMENT, STRIP TOPSOIL AS NEEDED A1ND STORE IN AREAS DESIGNATED ON FIGURE
<br /> A AND SPECIFIED ON SHEET 9, ITEM 1 . 3. USE AREA DESIGNATED "TOPSOIL STORAGE" UNTIL ITS FILTE2- FAeZC,
<br /> CAPACITY IS REACHED, THEN USE AREA DESIGNATED "ADDIITIONAL TOPSOIL STORAGE". o 3) POLYPROPYLENE FILTER FABRIC, SUCH AS MRAFI OR SIMILAR MATERIAL , SHALL BE
<br /> �^�TE '�) � USED, ALL JOINTS OF FILTER FABRIC SHALL OVERLAP
<br /> P A MINIMUM OF 24 INCHES.
<br /> 3) PLACE WASTE IN THE AREA DESIGNATED FOR PHASE II PILE CONSTRUCTION AS SPECIFIED ON SHEET 9,
<br /> 4) EXTEND NORTHERN END OF SUBDRAIN A MINIMUM OF 10 FT BEYOND LIMIT OF PILE AND
<br /> SECTION 4.0. MAINTAIN ADEQUATE SURFACE DRAINAGE OW PILE SURFACE. CONSTRUCT BERMS AT PILE
<br /> CREST AS NECESSARY TO PREVENT SURFACE WATER RUNOFF OVER PILE OUTSLOPE. CONSTRUCT TEMPORARY ) (\J� -� PROTECT WITH FILTER FABRIC TO PREVENT CONTAMINATION.
<br /> BERMS R DITC' ES ON PILE SURFACE AS NECESSARY TO DIIVERT RUNOFF FROM PILE F AN OVER-
<br /> LYING 0 C SURFACE D 0
<br /> LYING NATURAL SLOPE INTO ACCESS RAMP COLLECTION DITfCH. CONSTRUCT SUBDRAIN AHEAD OF WASTE
<br /> PLACEMENT AS NEEDED, AS DETAILED ON FIGURE A AND SE_CTION E-E ' OR OTHER APPROVED DESIGN.
<br /> 4) NO SLOPE SHALL BE CONSTRUCTED STEEPER THAN 2(H) :l (Vl). wA57E DSI0. -V_ DETAILED pESIUN
<br /> 5) WHERE LIMITS OF THE PHASE II WASTE PILE CORRESPOND TO THE LIMITS OF THE 47-YEAR PILE (AS
<br /> I SHOWN ON SHEET 8, FIGURE A) , RECLAIM PERMANENT SLOPE AS SPECIFIED ON SHEET 9, SECTION 6.0. �TIOI�f E - E JF '�--IU ICJ IEDI'7 /� IN
<br /> 6) PHASE II PILE AS SHOWN HAS A TOTAL STORAGE VOLUME O)F APPROXIMATELY 1 ,700,000 CUBIC YARDS. �-� GOLDER ASSOCIATES
<br /> 1 7301 WEST COLFAX AVE.. SUITE 275 MIC CpNT1�7Et�rt 2�ESOl12LBS, I
<br /> 7) PHASE II PILE WILL BE INCORPORATED INTO 47-YEAR PILE AS SHOWN ON SHEET 8. GOLDEN, COLORADQ 89401 Esox 158
<br /> C'°'c?Bor•'C'"'-E �L�DO
<br /> 9) THE ELEVATION OF THE TOP OF THE PHASE II PILE SHALIL NOT EXCEED 8310 FEET (EXCEPT (303) 278-8662
<br /> AT THE NORTHERN END OF THE PILE) UNTIL THE STABILITY OF A PILE CF GREATER HEIGHT �
<br /> .F HAS BEEN VERIFIED BY APPROPRIATE FOUNDATION EVALUATION AND STABILITY ANALYSIS. � DESIGNED BY GM CHECKED BY : Mpg
<br /> DR^-WN BY pL APPROVED BY'
<br /> DRAWING NO. �3-202,0 SHEET L OF q
<br /> DATEtt_�Iq SCALE �oGAr�
<br />
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