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Home My WebLink About20220901_Mine_Maps_74-90Pipe Outlet to Flat Area -- No Well-defined Channel Plan u,a,met Pipe Outlet to Well-defined Channel CALL -t3t_ACiwao i7 Notes 1. La is the length of the riprap � apron. t1 2, d=1.5 times the maximum stone diameter but not less than 6". 3. In a well-defined channel ex- N tend the apron up the channel banks to an elevation of 6" above the maximum tailwater depth or to the top of the bank, whichever is less. 4. A filter blanket or filter fabric should be installed between the riprap and soil foundation. Filter blanket Figure 6.41c Riprap outlet Prolec600 (modified Irom Va SWC4 (�lSLitrAT24G C)UiLC t ?R0 %e0tION l�ciAl l 4-J 'WW coarse aggregate Figure 6.06e Gravel ena411wiaxis keeps sediment from leaving the construction site Imoditied from Va SWCC). (SWAVk: CONS t2vcTtaN EtV'QANc.E �cigta Steel post max standard strength fabric with wire fence Wax. extra strength fabrw wrthut wire fence e �y I.JfLAItT`c cL03 V,iF i1,C 06 ��IMtTcR �T�iVcrtStort $ii�t t7, is i�ttl Mat Tu 66ALE is or ties , Natural ground 24" 24" Filter fabric Wire fence Cross -Section View Filter Steel fabric Bockfill trench Natural and host :' ground , /1 thorphlct ou 9 Y ..4 1 Ups1 min Figure 6.62a Installation detail of a sediment fence. � t L VGrtkG£ - ciA l l•_ c_J W I 2 s a htt r 3:l Sr.oP�. 3;t st.CD� i5 cs i Inv tM MINE �(, 'DiP41N LN��c� MIWIW(, 94A CW'_5S-%Z7C4CkN ve i rrem,z eovrro � NC I4i}WA`! 2Z2 III _ � MIN11J� ° t SDUNOeSTvRFSEo'[iucs{R a ll a 41 SIj �` P�tINING i�2E P i! 10 Ptto Pc-Rry ' Mu4 to c i.IMIT . o / &F I I PATV �.if1' ap // CoVnf'cy s� o,C�• p4;r1Ni P�NrJ '.�' '� �' / I' /40 e , In EXP9itN! 4t ti 4awnDwtx1. '� fMrT �, iiFE Lri7Al4� "t�rOUNW&• a .Te.4 ` t 'i C j�oa'c�vte-Onle/PS,�Mu. f r/ ~.~K/,v+v0es;v �C$yvNok, „tic uN01-nizacrgl ; tt 1: EMS"'Ve 14AUtr ` �p i/ r VywtLt'�U�' ,iJoh I t t nt\ It. ,+ tt '� 1� •Z 1'L !. �Q UNnt/tl It » v tl 1\\tt �;rA AViEA ` O It CIA It Z I \ l ( \ ) V ! i � It t 10 2 t % °Z Ni IN l Al G \\tom >r �� I t> Cttcn�+.2Y(.iWtd t9t t trt � '3n'.tLb' r' v� �tl t Roawq ire � - I I ` pouvT tG`9tTca 1 fQt tt A is i e�ovy to 1 I 3t ik C A aatl e . i 1 + t A 0 i n r t pRrP 30i ri CovN"1 a Wtt_t�t-tom t � 1 1 v f dd e 6Y11Nrn1G v �� Gt_U13 ? Q rig cQ It J �� r i '1 I `\ ViLRtJitS t °7 ) o) 1S + i t 1�1 f t.. )E%t5T'--`-"" lµ^-- �--^•`i i aeere, Ro_ r ! 011it 101TAIL part 3C'xlop' -MMp*uAta,1 ` &1SlrJ DOE. 'MtlntE ti'twA�RIN� Ng1 rt) Pi NN c>2 i NC Htgy * PT7p PE72TIt5 f )Op' Y yZx INS- v � 0_0Q0EL1V` XwO DerfrV15 #a.+�zt5 co. VN It;iUtd3e9 13up-ma 10 � t"nNtNc. LIM1"( r1L u a' N F � 7 7 J h v J p = � NtaNtN4 u% £ AAA NiiNir.�4 4lrv+t� 1ZM iUNGJiC Ri1AiLA �PU�t�R. 160 U�lb i JR13L0 �J✓r'FG\Z 91 g• PERtfnbttf� w �6 MRctz �. I�uPtttE mopezrvi LINE Development and Operation Plan LoNN I c 61. Gravel C,mstruction Entrances will be established as shown on mine plan. 6TW L' i Grading ' Mill begin in "Initial Mining Area" adjacent to the "Plant and Process Area". This initial excavation will serve as sediment and erosion control for establishment of the plant and processing area. All runoff from the plant and processing area will be directed Into this excavation and retained Nithout discharge. After the processing plant is established, water fro In this excavation will be utilized as recycled wash water and for dust suppression. Mining will then progress to the mining area south of the plant and processing area. These two mining areas will serve as sedimen, and erosion control for the plant and processing area for the life of the mi ne. Mining will then progress to the other designated mining areas as the need arises. In each area, the initial excavation will serve as the sediment and erosion control structure. Since the topography is ostE generally flat -lying along the perimeter of the mining areas, sit fence will M Nit tL be utilized to prevent sediment from leaving the mining area during initial clearing. Storrawater will be retained within the mining area, and either used in F rocessing ) dust suppression or discharged at the designated point. Sediment and Erosion Control The mining areas will serve as the primary sediment and erosion control feature, After the Gravel Con ytruction Entrances are established, excavation will begin in the initial mining areas just r orth and south of the Plant and Stockpile Area, Diversion berms will estabiishec just outside the 50-foot undisturbed buffer of the wetlands, and around the perimeter c f the mining area. This will prevent any sediment from leaving the disturbed area and or taring the wetland area. The Visual Barrier Berms (as required by the County) will be established outside of the 50400t undisturbed buffer along the property line, thereby prr venting any sediment from leaving the permitted area. The Haul Roads and Plant and E tockpile Area will then be cleared and graded to drain into the Mining Area excavation s. The perimeter berms adjacent to the Haut Roads and Plant and Stockpile Area will bit "notched" at approximately 200-foot intervals to allow runoff to pass from these area:: into the mining area. The openings will be backfilled with rip -rap and #57 stone to pr avent erosion. Runoff will be held within the Mining Areas until pumped out. All Haut Rc ads will be graded to direct runoff back into the mining areas. Once the initial Mining Are as and Plant and Stockpile Areas are established, all future land disturbance will be a cc ntinuation of this process, with all runoff remaining within the mining area. When mov ng into a new mining area, an initial area of excavation will be established with a perimete berm or silt fence to prevent any sediment from leaving the disturbed area mining are i. As mining progresses, all runoff will remain within the mining area. No dischai go of any water will be necessary in the early stages of this operation. Any water colic cted within the Mining Area will be utilized for dust suppression or in the washing pi ocess. After the Mining Area has expanded to a large enough size, some occasional discharge may be necessary. At that time, a temporary 30'x601 basin will constructed within the mining area. Any water pumped from active mining areas will pass through th s basin before discharge. After mining is completed in the area of the discharge point, then the mining area will fill with water, and any discharge form other mining are as will pass through the large pond before discharge. ReclamationPlan All mini) ig areas on this site will be left as a lake. As the excavation reaches the final mining limits, the slopes will be graded to a 3:1 slope. All disturb( d areas that remain above water will be graded to a 3:1 slope or flatter a id seeded according to schedule to prevent erosion. Perimeter berms v rill be removed and graded. The plant and processing area will also be grad W and seeded to prevent erosion. Any haul roads will be stabilized to prevt nt erosion and left for access to the property. RECERIED American Materials Company, LLC SEP 01 2022 Dupree Pit, Permit 74-90 Pitt County, NC Permit Modification Request LAND QUALITY 1 "=200' July 12, 2022 MINING PROGRAM Existing Mine Property Map by Carolina Geological Services, Inc Sheet 1 of 3 u a3o �� O I� Jvsrt^'A S1 U NO IS 1 v'mE"2 SV we:(1- r`V \�l `yCuczs3-4-1 r/ 19 r.l t'1,-r � \CUV N't `( t%` 3AM� ,(ZAµ1/ Kat><y , I.EoNISa2�\ '20 W44% �.-RIr15l.Ei ,��pU-ry �•( LINE/ t)c'2M'/C /n_ 3, �Gi vyG r %o tau FF o\s� �c Teo L 1tIt�l-na- y U Nn lS-CurLT j 'r CATEGORY CURRENT AFFECTED ACREAGE PROPOSED CHANGE TO AFFECTED ACREAGE TOTAL AFFECTED ACREAGE Tailings/Sediment Ponds 0.00 0.00 Stockpiles 0.00 0.00 Waste piles 4.00 4.00 Processing AreasMaul Roads 4.00 Aline Excavations 85.78 35.00 120.78 Other (Please e)rylain) Total Affected Acreage 124.78 Total Permitted Acreage 290.00 397.26 July 2022 Modification This modification adds 107.26 acres to the permitted acreage, and 35 acres of Mining Area Wetlands were delineated by Environniontal and Soil Service, Inc, and subsequently approved by the US Army Corps of Engineers. As elsewhere on this site, a 50-foot undisturbed buffer will be maintained between wetlands and any land disturbance. Silt fence will be established around the perimeter of the new mining area prior to any land disturbance. All runoff will be directed into the excavation, and there will be no discharge of stormwater. The new mining area will simply be an extension of the existing excavation. Reclamation of the site will be in accordance to existing reclamation plan and permit requirements. American Materials Company, LLC Dupree Pit, Permit #74-90 Pitt County, NC Permit Modification Request 1"=200' July 12, 2022 New Mine Property Map by Carolina Geological Services, Inc K S Y8 63 V OR"A Sheet 2 of 3 W ILLI Ault 13eoww1 POTez Brt-2s C=WGLIV5 14 DENN 15 Pf�' 5 Nocz-c-� PINNOn wNETZ S r'-*OP T%ES M 4r-C buPPEE American Materials Company, LLC Dupree Pit, Permit #74-90 Pitt County, NC Permit Modification Request 1 "=300' July 12, 2022 Combined Mine Property Map by Carolina Geological Services, Inc Sheet 3 of 3