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III <br /> M-2001-001 Line Camp Pit Amendment#2 (Expansion) <br /> iirr <br /> 7250 <br /> - b4 Map F-3 ELEVATIONS AND TOPOGRAPHY <br /> 727. e„ BFE OF RECLAMATION <br /> 4.'1 7240 <br /> ♦. Spot elevations are shown rather than contours due to the <br /> complexity of the reclamation as required by County and <br /> ,�♦t� landowner. Shorelines and precise elevations will vary <br /> ♦� based on backfill material available at the time of <br /> �♦�% reclamation of a particular areas. <br /> .�:���� Brown lines of variable width are berms, 5-10 feet higher <br /> +t►4' 4;; than the original terrain with slopes of 3H:1V and planted <br /> ��� t 7241 to grass. Elevations shown are estimated minimum height <br /> "�s 0 1 BFE of crown of berm. The NE berm (elevations 7236 to 7240, <br /> 726 • <br /> ;;0 + 7235 will include grassed/armored gaps to allow free flow of <br /> r♦0` �+4: water during flood events. <br /> N ��Ti,11 Red line in SE corner of site is the existing discharge pipeline <br /> �:�: ��w� approvedpreviously andpermitted byWQCD. <br /> as r y <br /> ♦♦♦��� BFE= Base Flood Elevation (From FEMAflood analysis for <br /> 500 feet .4i).4 + , y <br /> *4�� a 7236 100-year flood event)in the floodplain. Pond elevations are <br /> ► a $4�1� BFE estimated for the water surface (ordinary high-water <br /> k� '�, 7231 mark)as estimated based on river elevations and lag time. <br /> 7260 No water flows into ponds directly from river: water is <br /> ,, 4\ 235 either exposed ground water(alluvial aquifer)or provided <br /> P. / BFE 7228 by in-season flows from Home Ditch along western edge of <br /> l yr permit area <br /> , <br /> .�.' ►♦V/ Other than berms, pond shorelines for 3-5 feet above the <br /> �• •i OHWM are 5% (20H:1V) or flatter. Soil placement and <br /> f ttr x 7240 seeding is not done below OHWM of ponds. <br /> 43,v All ponds are incised; ridges between ponds are the result <br /> either of materials not removed or backfilling from <br /> 44 <br /> I � ` 7236 BEE �224 material stored during mining in berms and stockpiles. <br /> 724 1 :� Pond depths will vary from 10 to 30 feet(estimated)below <br /> � OHWM (surface water elevation as shown). This depends <br /> �t�� of fines (from washing of construction materials) and <br /> • 6:. backfill available:slopes will be 3H:1V or less for at leaston <br /> 10 <br /> � 7232 feet below OHWM. <br /> � BFE 7222Crowns and lateral slopes of roadways will be 2%or flatter. <br /> /owe\ <br /> ���:�:�� Road will be 20 feet or more wide. <br /> I t ru��`��.Z.�♦� / Blue elongated rectangles are pipes or open channels <br /> lre_ <br /> � ` J1� connecting ponds and laterals from Home Ditch to ponds. <br /> ' ♦�•A�-IN <br /> 229 BFE 7220 See Figure F-1. <br /> 2321 v. ♦_ i <br /> 7226 BFE 7218 Prepared by N A Barton, 14 NOV 2024 for SMLLC. <br /> 2024.1114 Drawn by 1 <br /> Outfall 001 <br /> 5182-22-001 WASTELINE, INC. Page 36 of 65 <br />