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APR 2 4 2013 <br />/ <br />/ <br />/ <br />I <br />I <br />I <br />/ <br />, <br />/ <br />/ <br />/ <br />i <br />i <br />/ 1 <br />/ 21.29 AC <br />I/ <br />18.92 <br />V <br />PROPOSED CULVERT <br />30" CMP) <br />EXISTING CULVERT <br />AOO / <br />\y /' <br />/ <br />\ Eh7S7ING CUL VI- I'7 <br />Ar- <br />/ 4.73 AC <br />631 i <br />I <br />0.70 AC � <br />i <br />M <br />0 <br />a <br />N <br />U <br />U <br />t <br />y <br />0 <br />c <br />m <br />a <br />X <br />Xref . \GRAP \64986— VAN4— TB.dwg <br />0 60' 0. <br />SCALE IN FEET <br />M. EOM <br />J. HUMPHREY <br />T. BRAGDON <br />PROPOSED CULVERT <br />(30" CMP) <br />"— EXISTIIVG CULVERT <br />GRASS -LINED <br />NOTES: <br />1. BERM SHALL BE LOCATED ONLY ALONG THE <br />SOUTHWEST SIDE OF THE DIVERSION CHANNEL <br />/ DIVERSION CHANNEL CROSS— SECTION <br />NTS <br />3 V-6' - 3 - - <br />�1 � 1� <br />i <br />30" CMP <br />C2 ) CULVERT CROSS— SECTION <br />NTS <br />EXCAVATION <br />AND BERM EXCAVATION <br />EXCAVATION BERM AND BERM EXCAVATION <br />18' COVER OVER CULVERT 18" COVER <br />(HAUL ROAD) OVER CULVERT <br />PROPOSED BERM (HAUL ROAD) <br />EXISTIA'C <br />GRADE ' <br />3'-0" <br />1 <br />EXCAVATION 30" CMP 30" CMP f <br />CULVERT CULVERT <br />( DIVERSION CHANNEL PROFILE <br />\WI j NTS <br />VAN 4 MINE <br />DRAINAGE PLAN EXHIBIT <br />3'-0' <br />A <br />LEGEND _ __- <br />-1-Q <br />—/ <br />4 — -' -, <br />PERMIT AREA BOUNDARY <br />'— <br />1 '` <br />yamU-& <br />EXISTING BERM <br />PROPOSED EARTHEN BERM <br />/INj <br />UEXISTING <br />DRAINAGE <br />PROPOSED DIVERSION DITCH OR <br />CHANNEL <br />♦� <br />SURFACE WATER FLOW DIRECTION <br />DURING MINING <br />—_— _ <br />EXISTING SURFACE ELEVATION <br />MAJOR/MINOR CONTOUR <br />- — — — — - <br />DRAINAGE BASIN BOUNDARY <br />BASIN ID <br />BASIN AREA (acres) <br />21.29 AC <br />,eA9 <br />100 -YEAR 0 (cfs) <br />GRASS -LINED <br />NOTES: <br />1. BERM SHALL BE LOCATED ONLY ALONG THE <br />SOUTHWEST SIDE OF THE DIVERSION CHANNEL <br />/ DIVERSION CHANNEL CROSS— SECTION <br />NTS <br />3 V-6' - 3 - - <br />�1 � 1� <br />i <br />30" CMP <br />C2 ) CULVERT CROSS— SECTION <br />NTS <br />EXCAVATION <br />AND BERM EXCAVATION <br />EXCAVATION BERM AND BERM EXCAVATION <br />18' COVER OVER CULVERT 18" COVER <br />(HAUL ROAD) OVER CULVERT <br />PROPOSED BERM (HAUL ROAD) <br />EXISTIA'C <br />GRADE ' <br />3'-0" <br />1 <br />EXCAVATION 30" CMP 30" CMP f <br />CULVERT CULVERT <br />( DIVERSION CHANNEL PROFILE <br />\WI j NTS <br />VAN 4 MINE <br />DRAINAGE PLAN EXHIBIT <br />3'-0' <br />A <br />