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C <br />r <br />e <br />0 <br />n <br />dwi <br />a <br />-27500 S <br />-28000S <br />-28100 S <br />W <br />0 <br />0 <br />LO <br />0 <br />N <br />0 <br />N <br />O <br />24"X120' CMP <br />PRINCIPAL SPILLWAY, 6" ORIFICE, ELEV 7011.4 <br />EMERGENCY SPILLWAY,24" DROP INLET,ELEV 7015 <br />9 <br />o, <br />m <br />0 <br />THE SEPT.9 1987 FIELD SURVEY. <br />'A <br />110 oti <br />1 °69 960UTLET <br />/ 6 ELEV. /9 <br />.r-RIPRAP <br />U.1 <br />0 <br />o <br />0 <br />N <br />PLAN VIEW <br />SCALE I"=50' <br />CONTOUR INTERVAL 2' <br />roe! <br />\ --I <br />-27500S <br />-28000S <br />- 28100S ' <br />W <br />w <br />0 <br />0 <br />0 <br />0 <br />0 <br />_ <br />N <br />N <br />6" DIA HOLE AT ELEV 7011 i <br />I <br />/ <br />24" DIA CMP <br />i <br />-lam" / <br />HUGGER BAND <br />.WATERTIGHT WELD <br />CONSTRUCTED ELEV = 70191 (SETTLING ALLOWANCE) <br />•Q; 11 0 <br />--7020 "` •� <br />7020 - - <br />- CONCRETE CRADLE/ <br />DESIGN EMBANKMENT ELEV = 7019.0 / / 24 <br />\ \ 7015.0 -DROP INLET <br />\\ 70114- - ORIFICE INLET - /� i / 7010 <br />70/0 i j SPILLWAY DETAIL <br />UPSTREAM <br />TOE-; SCALE / "= 4' <br />AT CENTERLINEZ__ <br />ORIGINAL GROUND _ <br />7000 ��� � -- -- - - - --" - KEYCUT ? - - -7000 , <br />BOTTOM �F_ - - _ <br />Elevation Stage Area capacity Totat Capacity <br />ssso LONGITUDINAL SECTION OF EMBANKMENT � -B' 6990 ctio 9s;) (ft.) (Acres) (Ae� -it.) (Ac'- ft') oescription <br />Top of Embankment <br />HORIZONTAL I"= 20 7018 16 2.69 5.05 22.51 <br />SCALE! <br />VERTICAL I"= 10' 7016 14 2.36 2.29 17.4 ; <br />7015 13 2.21 2.14 15.18 Emergency Spillway <br />7014 12- 2.07 5.53 13.04 <br />7011.4 9.4 1.68 1.55 8.16 Principal Spillway <br />7010 8 1.47 2.56 5.96 <br />7008 6 1.09 1.86 3.40 <br />7006 4 0.77 1.12 1.54 - <br />r - - - <br />7004 2 0.35 0.42 <br />7002 0 0.07 0 0 Bottom of Pond <br />1 <br />umber <br />V ,3 Revisic <br />Se., p ro <br />as � <br />PRINCIPAL 8 EMERGENCY SPILLWAY COMBINED <br />7030 ' <br />° DROP INLET = 24" DIA CMP <br />t TRASH RACK 15 TOP ELEV 70191 a PRINCIPAL SPILLWAY = 6" DIA ORIFICE <br />7020 DROP INLET 701\0\ o EMERGENCY SPILLWAY = 24" DIA CMP, 3% SLOPE,120' LONG <br />-- MAXIMUM WATER ELEV = 70137 (10YR-24HR) 3 J <br />r-ELEV =70111 ORIFICE INLET 70114 WATERTIGHT JOINTS(ALL) <br />7010 -�"- - - _ % -APPROXIMATE 4 YEARS SEDIMENT STORAGE 1 <br />II <br />(4) 5'x 5' ANTISEEP COLLAR <br />SLOPE ELEV 6998 8 <br />�� <br />E� LEV 7002 \\\ 2 2�r- __ __- �RIPRAP <br />7000 <br />-- -- � 4' KEYCUT <br />�-15' -� <br />min <br />6990 <br />3 <br />s <br />CROSS SECTION A -A� <br />SCALE' HORIZONTAL 1 " = 71;A I.. =1o' <br />V •, <br />Y <br />a <br />y> <br />l <br />AIiE <br />t S M <br />I <br />4N.EEK"S CERTIFI_CATIOW <br />!rFyGy _ <br />COLORA00 P.E. 11611 <br />Did V 0 G T <br />41 for <br />DATE: { I <br />ICY 12 1987 <br />0 <br />0 <br />1 <br />{ <br />Pema Number C l76o 00S- <br />Class ermd T I ], <br />_Section /Exhibit - _ L Ot,b ----------------------- <br />Class D Revision I <br />Type /Seq_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ J <br />Cl ass O Reporl0 Hydro 0General <br />Doc Type _ I <br />1 OApplication (Coal only) 13 Bond ❑ Enforcement ❑ Inspecbon f <br />7030 <br />7020 <br />70/0 <br />AP <br />7000 <br />6990 g <br />EXHIBIT 7 -17A <br />*EDIMENT POND 008 <br />(AS BUILT) <br />SENECA II MINE <br />PEABODY COAL CO. 1300 SOUTH YALE FLAGSTAFF ARIZONA 88001 <br />DESIGNED BY. P C.C. SCALE: AS SHOWN <br />DRAWN BY: P.C.C. C.L: AS SHOWN <br />CHECKED BY: J,G S DRAWING OATS 10-21-87 <br />REVISIONS <br />006381 „{ <br />