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verenniai s ream i c <br />Perennial river •' , <br />Intermittent stream/ditch /'-�..�.✓,i••— • . <br />• ,-. <br />Intermittent river - r <br />� a <br />Dam <br />,. <br />Perennial lake/pond <br />Intermittent lake/pond TYPICAL WASTE EMBANKMENT. BENCH <br />Dry lake/pond CROSS SECTION <br />Elevated aqueduct, flume, or conduit 1 <br />Buried aqueduct, flume, or conduit <br />Waterwell Qweu N... <br />Spring or seep o""-� <br />Drainage Basin <br />Flood Plain <br />Shrubland <br />Orchard <br />Vineyard <br />Power transmission line; pole; tower 0 0 --0 <br />Power transmission line, buried <br />Telephone/data line, above ground 0 B p <br />Telephone/data line, buried <br />Pipeline (non -water), above ground 0-••—••--0••••-- -e <br />Pipeline (non -water), buried—••—••---•—•—••— <br />URMS Permit Boundary <br />200' Offset of DRMS Permit Boundary. • • • • • • • • . . • <br />Fixed Structures <br />Mobile Structures p Q <br />Mining Phases - —� <br />Berm/windrow <br />Approximate of indefinite <br />Intermediate <br />Approximate of indefinite <br />Supplementary <br />Index <br />Approximate of indefinite <br />Intermediate ,y°•�,.:,d,.„,...----•• o <br />Approximate of indefinite ' _. - "" O <br />Dump <br />Q�' <br />O 00 <br />W 0) <br />G-2 SURFACE <br />HYDROLOGY DETAILS <br />YOUNG RANCH RESOURCE <br />DRMS Permit Number: TBD <br />MSHA ID: TBD <br />Mine Entry Location: Latitude: 39.758942 <br />Longitude: 105.450517 N <br />State: CO County: Gilpin <br />Nearest Town: Central City <br />Section:28 Township:3S <br />Range:72W PM:6th <br />Major Watershed: Clear Creek 0 <br />200 400 600 <br />Map Scale: 1 ":200' <br />Map Georeferencing Information: Datum: NAD83 Projection: CO North <br />Survey Source: USGS LIDAR <br />Survey Date: 2015 <br />Imagery Source: USGS LIDAR <br />Imagery Date: N/A <br />Drawn by: JAM <br />Date: 06/20/20 <br />Checked by: BHM <br />Date: 06/20/20 <br />Approved by: BEL <br />Date: 06/20/20 <br />File Name: Young Ranch 211123 Hydro Maps.dwg <br />0 3375 West Powers Circle <br />Littleton, CO USA 80123__J <br />, (303)-346-5196 a info@lewicki.bz <br />DETAIL 1 - CONCEPTUAL WRL TOE PROFILE <br />N <br />Ungraded Benh <br />ce Min. Width 86' <br />Height = 50.01 <br />Stormwater <br />Height = 5. <br />SAPLING PLANTING (TYP.) <br />A" <br />RIPRAP INSTALLATION <br />SEE DETAIL 2 FOR CROSS SECTION <br />DISCHARGE POINT <br />Ungraded Bench <br />Face Runoff = 24 SF <br />Calc. from Rainfall Depth = 0.27' <br />Ungraded Bench Face <br />Runoff Capacity = 192 SF <br />Calc. with 1' Freeboard (4' deep) <br />Waste embankment <br />face regrading in progress <br />Regraded waste embankment <br />face. Large broken rock cap acting as riprap. <br />Tree planting (typ) <br />�E co <br />SEE DETAIL 1 <br />DETAIL 2 - CONCEPTUAL WRL TOE CROSS SECTION <br />EXISTING <br />GROUND <br />RIPRAP AT WRL TOE <br />D50 = 9-in <br />Dmin = 6-in <br />Dmax = 12-in <br />Sideslopes = 1.3H:1 V <br />Channel Slope = 45% <br />DEPTH OF FLOW = 1.1' <br />RIPRAP AT <br />WRL TOE <br />25' <br />7.4' FREEBOARD <br />1' <br />W <br />