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I <br />I.I' I r <br />091460 <br />p WMA <br />-30' <br />� /.0' u/7411EL 40'711/CK <br />`_sue SUBGRADE �— �� <br />ACCESS ROAD -- SECTIONF F <br />SED /MENT POND N0.8 <br />1 <br />L <br />r <br />i <br />7 0.3 <br />7 I <br />CATCH D /TCH- SECT /ON S -S <br />4.2' <br />5) 7, <br />SOUTH D /VERS /ONDITCH -SECT /ON T -T <br />0.8' <br />7 <br />CATCH DITCH SECT/O/V U- U <br />D-4" <br />-M /RAF/ /40 S FILTER FABR /C <br />I � 0.6' <br />EIEY : 4750 <br />Q9DQow0DonAJKAXEW3' <br />SP /LLWA✓ 2 <br />Sediment Pond S/oec /{icoftons <br />MPTf,/FROMBOTTOMOFSP/LLw4V.' 12,5FEET <br />CAPACITv : 3, 8 9 ACRE FEET <br />FREEBOARD / FT. <br />SEDIMENT STORAGECAPACITV : / YEAR + 0.61 AC RE F E ET <br />STORAGE CAPAC /Tv : /0 YEAR, xHcuez -vEA/T + 0.61 ACP. E FEET <br />OVERFLOW CAPACITV : 25 yEAQ, 241-10UREYEAI7 <br />DErEAIriON rl"C : A S NEEDED <br />DfWATER /NG : F C k I A P L E ! M P <br />SP/CCwav riZE : ^0 Nil-'E r EN CH,;,vNEL <br />RBI' FAr Ir. ML. kGLNCY <br />SPILLWAY: e = 6" <br />T5701CA1 UNDERDRA /A/ PROF /LE <br />,Section D-D <br />UA1D6PDRA/N DETAIL 'D <br />FLEV. = 4748.5 <br />50 EX 15RA16 GROUND <br />FILL --r` <br />ROCFCF /CLI4ASSPEC /F /ED% <br />ELEV, r 4756 <br />,VDIMENT POND A10. 8 -- -s Ec710A1 P - R <br />ORIGINAL GROUND <br />D 1VE;PS 10N DITCH- SECTION C -C <br />2.2 <br />, <br />S.8 <br />- — l0 <br />15' <br />/ ?.5 EYMWO <br />6"AID <br />BERM AND DITCH - SECT /ON E- E <br />- . 2 3 - - - 1 a' - - -- <br />SECTION <br />C -G <br />SECTION <br />H -H <br />EXHIBIT <br />SH <br />EXHIBIT <br />SB <br />2,11' 1 5 ELEV. %I75C <br />4748_5 <br />I `-„ Fns AR0 <br />SEDIMENT POND 8 - SECTION R'- R <br />SURFACE DEBRIS SKIMMER <br />T <br />EMERGENCY SPILLWAY 4830 0_ <br />f PRIMARY <br />SPILLWAY 4827,6 r� <br />OIL SKIMMER -18 °ADS PLASTIC =' <br />SLOTTED OR CUT OFF BELOW GATE VALVE <br />,-POND BtOTTOM ECEYAT /ON = 48231 PRIM S P L LW AY <br />L <br />a <br />SED /MENT POND NO. 6 -- SECT /ON B -B <br />Sediment Pond 810cl fcollbns <br />FREEBOARD : I, OCT. <br />.SED /MENT STORAGE CAPAC /TV : ONE VE9R. <br />STORAGE CA9107V : /O VE,440, 24 HOUR EVENT <br />OVERFLOW CAPACIrV: 25 BEAR, 24H0UREVENT <br />DETENT /O.V TIME .' 24 HOURS <br />DCW,17ER /N6 : MANUALLY Of RATED 6A7E. <br />76001BA,ViYELEV : 4832.3 <br />��PpO RE*Cj� <br />!o�.•�S E.�'//f <br />� V * -tly me or undo <br />1 •- Lllflt��ile <br />0. my kuowi°dgS <br />3' PMP <br />6' PVC <br />/e drewtn, wee done <br />cl eepotvtefon end <br />t on proeented on thle <br />eot to the hcet f <br />RECEiVEb <br />JUL 0 4 2003 <br />Owision of Minerals and Genim, <br />SNOWCAP COAL COMPANY <br />PO BOX 1430 PALISADE, COLORADO 81'41. <br />REVISIONS <br />1 RevisedSedimenfpad B�6, C�orrSecl <br />S -s o rr— G.B. 7.20 -BP <br />7Asbui#-I2-9 -82 -G.B <br />I DELZrzF: erAl- A- Auo _ <br />5 =-riUV c'-c' 4 "4-N <br />1 REVISED POND 6 X- SECTION <br />SEDIMENTATION CONTROL PLAN <br />DETAILS AND SECTIONS <br />F T -T 1-9-9e LMR DRAWN BY: G. B <br />Sect. G -G H -H 5/03 CHECKED BY: <br />APPROVED BY: <br />T R -q Z Lr h O03 <br />NO SCALE <br />aa, EXHIBIT 20 <br />