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in <br />MINING <br />,�BASELINE CONDITIONS <br />k ATION <br />3C <br />U <br />a 7 <br />% <br />A <br />.4 .-t <br />0 100 0% % a a 0 <br />. 80*0 <br />it ow <br />0 00 0 a <br />J*%N 01' 0 W. 0 a 0 <br />4i 0 <br />'00- A'A 0 <br />% <br />77 1 <br />L <br />4 Soo 00 <br />11 0 <br />40 168 0.49 <br />00 <br />40 <br />t <br />8 0.49 <br />16 <br />k., <br /># <br />- % <br />z- <br />4W ;0. <br />vr <br />j, <br />t <br />61 0 <br />0 <br />3 4 <br />/* <br />1 049 <br />0 01 <br />4 , <br />0 0 off,,* a 0 <br />0 <br />40 <br />0000 0;. .1 0.53 <br />4 <br />0 40 <br />T�, <br />me. <br />04b <br />4. diff'od"s, <br />A <br />0 <br />14 <br />0 4 0# <br />__A4ft 4 a 0 - 6 0 * * * - * * a <br />A- <br />-Waft <br />0 Rk 0 <br />.0 � <br />qP 0 0 00 <br />& J �\" <br />a 04, SO V <br />IF 4b, a t 11 0 0 <br />.0 <br />4 <br />6 <br />Ap <br />0 0 A <br />41S <br />Wo <br />jF* 5 e7 e <br />00 0. 46 <br />N <br />0 <br />0 04 <br />0 -7 1 <br />0 * \�,� <br />0 0 <br />41 L "940 <br />0 <br />06 41 <br />0 $0 00 <br />0 0 <br />_X <br />'J <br />00 <br />60 6 <br />0 % <br />T to <br />4 <br />0 <br />0 0 <br />0 <br />0 <br />0\ <br />F 0 <br />2 0* <br />"0 <br />0 & � 0 ; "I", ,_, <br />0.0 0 <br />1"0 0.13 0 *41 a <br />A <br />A. <br />2 <br />8 <br />20 0_61 64 0,18, <br />120 <br />0 0.13 0.13 <br />41i ;1� *,!p <br />L <br />44 i�;70,000 4, <br />I AFr '-wr i�W_ jrw <br />71 <br />V <br />331 0.1 <br />0�19 <br />L <br />40 <br />..060 <br />-J A, <br />\ % <br />r <br />N <br />NOTE: Surface water drainage directions in the Pits will be a combination of baseline and <br />'0 <br />4l <br />0 <br />0 <br />0 <br />ONS <br />0 <br />0 <br />16FS 0.)49' <br />reclaimed patterns depending on what has been 1-nined+backfilled. Mining occurs i a 3-5 <br />acre cell at a time that progresses within the entire mining extents shown. However, the pit <br />will never actually be in the completely mined out configuration currently shown. <br />ROADS AND RELATED FEATURES <br />VEGETATION <br />Riparmn comdor <br />Light duty road, gravel <br />- I 11 I <br />Rangeland <br />R IVERS, LA KES SH ORELINES, AND CANALS <br />W1 Wetlands <br />PeTennIal stremnAitch <br />soils <br />Perennial -river <br />Pere=al lake pond <br />BASELINE CONTOURS <br />Drainaize Basin <br />Index <br />Intermediate <br />Df ainagge Direction <br />POST -MINING CONTOURS <br />MINING FEATURES <br />Index <br />DK),1S Pernut Boundan <br />Intennediate <br />Affected Area <br />Storm"ver Berm - - - - - - - <br />POST -RECLAMATION CONTOURS <br />TRANSMISSION LINES AND PIPELINES <br />Index <br />Interniediate <br />Power transmission line-, pole: touer G <br />T10% <br />,CLAMA <br />fi1Vj,g,J0t4 Of F 'Y <br />AND <br />G-1 Drainage <br />Map <br />Limon Sand & Gravel <br />DRMS Permit Number: MIA <br />Bettis Companies <br />Mine Entry Location., Latitude: 39-234283 Longitude: <br />-103-643228 <br />State. COLORADO County: LINCOLN Nearest Town: LIMON, CO� <br />Section: 27 Township: 9 Range- 56 <br />PM: 6TH <br />Major Watershed: Arkansas MSELA. !D: <br />- <br />Map Scale: 1".� 1100' <br />0 1100 2200 <br />Map Georeferencing Information: Datum: NAD83 <br />Projection: CO CENTRAL <br />Survey Source. USGS Drawn by. SAC <br />Date: 05-09-25 <br />Imagery Source:NIA Checked by: SHM <br />Date.-. 05-09-25 <br />Survey Date. .1023 Approved by: BHM <br />Date- -- <br />Imagery Date: NIA <br />File Name. Limon Sand and Gravel 240724-recover <br />Lewicki & Associates <br />3375 West Powers Circle (303)-346-5196 <br />jnf&@leWCki_biz <br />Littleton, CO USA 80123 <br />Detail I - Storinwater Detention Benu <br />2 MIN. HEIGHT <br />"VARIES, <br />Drainage Basin Labels <br />Basin <br />46-2 0�5 z <br />Area Runoff Basin <br />Coefficient* Destination <br />*The runoff coefficient was determined using the assumed <br />hydrologic soil group. The permit area soils are not mapped by <br />the NRCS. so they have been assumed to be consistent with the <br />upstream sod types. <br />Drainoge Basin Runoff & Detention (Rational Method) <br />Drainage <br />Bosin <br />Arecl <br />(cc) <br />Assumed Hydrologic <br />Soil Group* <br />Phase of <br />Opera tion <br />Runoff <br />Coefficient <br />100-YR 24-HR <br />Runoff (cc-ft) <br />M in. <br />Berm <br />Height <br />(ft) <br />Detention <br />ccpccity <br />1 <br />364 <br />A <br />Baseline <br />0.13 <br />1 0 r_ <br />0. J <br />0 <br />Mining <br />0.18 <br />25.4 <br />2 <br />63.5 <br />Reclamation <br />0.13 <br />18.3 <br />0 <br />2 <br />120 <br />A <br />Baseline <br />0.13 <br />7.0 <br />0 <br />Mining <br />0.28 <br />13.5 <br />4 <br />14.1 <br />ReclomGtion <br />0.13 <br />6.3 <br />0 <br />3 <br />331 <br />A <br />Baseline <br />0.13 <br />19.3 <br />0 <br />Mining <br />0.19 <br />27.4 <br />4 <br />43.2 <br />Reclamation <br />0.13 <br />18.8 <br />0 <br />4 <br />168 <br />D <br />Baseline <br />0.49 <br />33.1 <br />0 <br />Mining <br />0.51 <br />34.3 <br />8 <br />50.1 <br />Reclamation <br />0.49 <br />33.0 <br />0 <br />5 <br />80.1 <br />D <br />Baseline <br />0.49 <br />12.9 <br />0 <br />Mining <br />0.51 <br />15.8 <br />4 <br />24.3 <br />Reclamation 10.49 <br />-112.7 <br />0 <br />w 1 j--. 1%-atiumal 111cLuvu mocu lu, caLcuiations. ijetennon capacity calcuiatea in <br />AutoCAD as surface volume stored behind the stormwater berms. <br />