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4880 <br />4870 <br />z <br />F°— 4860 <br />W <br />4850 <br />4840 <br />s <br />0 <br />0 <br />w <br />COFFIN -DAVIS <br />DITCH <br />0 <br />00 <br />a <br />WETLANDS <br />MAXIMUM DEPTH <br />4 FEET <br />4 -1 4 4 A <br />ST. VRAIN <br />CREEK <br />PIT HIGHWALL <br />Cross Section A -A' <br />Not To Scale <br />REGRADED <br />Oi r Mn <br />CHECK DAM <br />5 FEET HT. <br />FILL <br />-r <br />APPROXIMATE BEDROCK SLOPE 0.357 <br />(SEE NOTE 1) OVERBURDEN <br />WETLANDS <br />MAXIMUM DEPTH <br />5 FEET <br />Section C -C' <br />Schematic Section Along Flow Path <br />Not To Scale <br />ST. VRAIN <br />CREEK <br />CHECK DAM WETLANDS <br />MAXIMUM DEPTH <br />5 FEET HT. 2 FEET CHECK DAM <br />FILL 3 FEET HT. FILL <br />--- - - -_ -. _ <br />EXCAVATED <br />BEDROCK n <br />NOTE 1: WETLANDS ARE FILLED WITH FINES <br />FROM THE CRUSHING OPERATIONS. <br />(SEE NOTE 1) <br />APPROXIMATE BEDROCK SLOPE 0.017 <br />�1L\ <br />1/2 <br />Cross Section B -B' <br />Not To Scale <br />a 1 MAXIMUM <br />DEPTH 5 FEET <br />REGRADED <br />SLOPE <br />1 4 <br />J1 <br />1/2 <br />4840 <br />^-100 FEET <br />_Permit Number <br />Class. Permit 7 1 <br />_Se_ofio /Exhibit. <br />ll <br />Class: O Revision _ _.,. J_._._._._ ._._._._._._._._._._._._.___._. _., <br />I Type /Seq: <br />Doc Type: <br />OApplication (Coal Only) ❑ Bond O Enforcement O Inspection <br />PREPARED BY. <br />SRK Consulting <br />Engineers and SCientisfs <br />PIT <br />EXCAVATED -� <br />BEDROCK <br />OVERBURDEN HIGHWALL <br />BACKFILL <br />— 4880 <br />WETLANDS <br />MAXIMUM DEPTH <br />OUTLET TO <br />4870 <br />2 FEET <br />CHECK DAM <br />ST. VRAIN CREEK <br />3 FEET HT. <br />�• <br />FILL MAXIMUM DEPTH <br />o <br />-- -13 FEET <br />asso ° <br />e <br />yy <br />� <br />ewe Ax <br />� <br />0 <br />W <br />J <br />4850 <br />4840 <br />^-100 FEET <br />_Permit Number <br />Class. Permit 7 1 <br />_Se_ofio /Exhibit. <br />ll <br />Class: O Revision _ _.,. J_._._._._ ._._._._._._._._._._._._.___._. _., <br />I Type /Seq: <br />Doc Type: <br />OApplication (Coal Only) ❑ Bond O Enforcement O Inspection <br />PREPARED BY. <br />SRK Consulting <br />Engineers and SCientisfs <br />