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06 0!Nn T <br />R a,.S u�RN <br />ion 3 <br />ag a!mo z <br />3 <br />I IQp p <br />Z3 f <br />n, <br />i <br />- i <br />i 1 <br />1 <br />i <br />i <br />i <br />i <br />! <br />I , <br />m <br />ARAPAHOE COUNTY PHASE II DRAINAGE PLAN AND EROSION CONTROL DETAILS (SHEET 0 Mining Plan an Notes: <br />1. Maximum 15_t acres to be in a state of disturbance at any one <br />MLRB PREewMINING a MINING PLAN MAP EXHIBIT C time. <br />z ARAPAHOE COUNTY USE BY SPECIAL REVIEW PLAN MAP FOR TWK DEER TRAIL PIT (SHEET 1) 2. Phasing shown dependent upon demamd for both borrow and sand <br />and gravel aggregate commodity prodiuct, and quality and depth <br />of sand and gravel aggregate resouirce. <br />SCALE: Bar = 200' <br />• .p <br />N@G- <br />3O.Or <br />i <br />beginning <br />of <br />Beginning <br />I <br />1 <br />161 <br />1 <br />30' MNVNV <br />FRAM AO <br />PRQr'ERl <br />3. Storage of surface soil material anld overburden allowed in 50, <br />setback areas. No excavation allowed, only grading to match <br />excavation contours. <br />4. Vegetative Cover - Grass and Forbs. with 254 ground coverage. <br />See Exhibit J for additional information. <br />1. Install $il F n ina, Anchored Straw Bal Bar iar3C and /or <br />Temgorary Diversion aarna as needed for erosion and storm <br />water management control. <br />2. Regrade per EXHIBTT E - RECLAMATION PLAN and revegetate per <br />EXHIBIT F - R .vF:G TATION PLAN MAP in approved MLRB mining <br />permit application. <br />3. Report any spill events to agencies as listed in SWMP. <br />A 9n1 1 r.... n.-..._. _' ___ . <br />GRASSES AND FORKS (P5% GROUND COVERAGE) <br />SEE EXhWT J FOR MORE NvFORMATION <br />ADCOCONSULTIING�} INC. <br />2090 EA 104TH AVENUE, ST? 305 <br />THORNTON, COLORADO 8023, 4316 <br />(303) -45o -2204 FAX: (303) 42 -4515 <br />RECORD OWNER OP S A('F C)F AFFR(wrp.T,) T.AND - TWK Enterprises, Inc. <br />7 0TAL ACREAGE - 00.578 ACfRES <br />oC�.�lutU <br />AUG 15 1996 <br />R GeoloQV <br />TWK <br />A PART <br />DEER TRAIL REGULAR <br />OF THE WEST ONE -HALF OF SECTION <br />PERMIT PIT. #M -88 -090 <br />24, TOWNSHIP 5 SOUTH, RANGE 60 WEST OF <br />v <br />RLVJ: <br />066 !26/26196 - <br />ADD DRAINAGE PLAN 8 EROSION CONTROL <br />DETAILS IN ACORDANCE WITH ARAPAHOE <br />THE 6TH <br />PRINCIPAL MERIDIAN, ARAPAHOE COUNTY, COLORADO <br />A <br />COUNTY REGULATIONS. <br />I" = 200' MARCH 18, 1996 <br />PAGE: <br />541 65 -70 <br />nd Good 1nijsPkPPnjna Sections <br />0.4 <br />I \ ACQ�7S 4envety I� <br />M�6p <br />I <br />,.. � 5- IFS uAlnc� d0/N6 <br />&ftAcemawr or <br />6JE k DuRD #A!' CbwSr. <br />OF FINA.. SWiiS MAD <br />/764P060^4 OF 7b►SDK. <br />5-40x5 uNDEe6o r, <br />R14LA047VA/ fAll <br />RE NE Tot /0 At <br />My <br />0 0 <br />TYPiCAg L 241A 5 W6 O F <br />51EDI 9EAJrAT10n/ A.vp EftSMA/ <br />00"TAOL <br />iQ <br />NT'5 <br />4000 <br />� J <br />Q!KAIIYAGE <br />LIEGE, <br />:CTION OF FLOW <br />TS OF DRAINAGE WIN <br />00 <br />N DESIGNATION <br />A <br />1 W ACRES <br />A <br />IL RUNOFF COEFFICIENT— <br />G <br />C <br />GN POINT DESIGNATION—_ <br />D %D <br />EROSION AND SEDIMF'NTAT/ON <br />[ ongo1 S32 <br />TITLE <br />.ISiY SYMBOL <br />'OSED SILT FENCE <br />® ,�•_ <br />OSFD HAY BALES <br />4CE R <br />ACE ROUGHENING - <br />W BALE BARRIER <br />rENCE <br />O _• <br />. DIVERSION DIKE <br />_• <br />n �y <br />. GRAVEL CONST. ENTRANCE- <br />DESIGN I CONTRIBUTING <br />POINT AREA <br />))NISI <br />141FINAL <br />DRW BY: <br />LG.B. <br />NO: <br />24- 5S60 -64L <br />7 <br />R.B. <br />SHEET <br />RUNOFF <br />SVEAR <br />B.2 <br />•a <br />1.6 <br />1.6 <br />DJ. NO: <br />PEAK I• ►VEAII <br />(CFS) <br />SHEET I OF I <br />