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Home My WebLink About20221117_Mine_MapPipe Outlet to Flat Area— W Wel'-defined Channel 3do A G— Plan La A. �„IYe♦e.- �En =- Section AA *Filter blankel Pipe Outlet to Well-defined Channel CAP'_ i3A-f'C IiWao> Notes 1. La is the length of the riprap apron. 2. d =1.5 times the maximum stone diameter but not less than 6". 3. In a well-defined channel ex- 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 fitter blanket or filter fabric should be installed between the riprap and soil foundation. Filter blanket Figure 6,41e Riprap outlet protection (modified Irom Va SWCC,. "�tSf.NAt24�. C�UiL.ET 'i'(LL>i1cG'tipN yciAt L 2_0 coarse aggregate 14 Figure e.O6a Gravel enhance/exit keeps sediment from leaving the construction site (modified from Va SWC ). C vcL, CoNSitzuc ttoN Etv'dZArvcE Steel post wo f ence 24" 24" i 8' max b' max. with e fit) h �r i OttTtEi "WAlt. nr2 3o`)44,0' TeMFaTanay yt,. tINETo StAklf MIT -- 3:1 Swve i NC Fit NvC2 A lOD' H/gyXVAY Zzx PT2o PcFL-r•tkS ups/t� Bu fold PSG �r }� v /` unie t cemtzgoun\ NE 1G6jWAY 2Z2 Wg' I MiN11st of _ \ �UNOiSTut2P.1'cp '$VGrr'"'Yt, J e, AREA r vie avgE:2Q� t3u�2 91 Z' er' w�TLAt39�i r<• attwuac to tit / R°/ �" i a �, /� w 1 Af,a AtuA f Ct` ta` r J� lit ea to to to PRo Pi 1 J / W MtlV tryC L1Mt7.. i OF , `� jt kPy' Covnt y PANT PAID AWA DtSSN NAvI PotnlT 1 w r— VOpp E)ItSZtN41Sku{' �,a0c7NpA1Z1` // LAM`% jyFEtfcTptt) -- -- d w t4`s =Qr/ t r� -c;` P�Pc2 tLtNeiPEarvt &U/1DPit` Ir 50'vN4A5Q�.,8oVA/ i �� txiy, to t�. i ( V2�g`j NQQIi r ! tAJwN4 �q vJf't/C�'" -� ) Xy„Ne C)N�ISTV KBCg I 1 t S\r t ,�.r� q /~� / Mj T3UFpE2 I t 8v I t t rr'r��+t 3��1 i^ ,A ` -_v I 1 i< f'X15TNJ4 14A f ` Eyfai r c ,tAvl �'�,t�N � ,-��e �yo/ ,p ra \\ K, t /.( 6DT Uti9th J i J r �\ 3 L �rWMCZ22 �'PtVGRSIonJ "bUz/q �o:Atl SCALE �i Plastic or wire ties Filter fabric Wire fence Gross -Section View Filter fabric Back$II trench bteel Natural post and compact ground $horoughly .. VPs1 . min• min Figure 6.62a installation detall of a sediment fence. Sty; �c.I cry �it'AtL Natural ground \U\ Z 1 A \ If \mil / Zt i \- \t'`'' i 14J �fi t IS or 1. A \A I \\ i IS of t 1 F u ku Ate t ? A jZ If MlNttvJtG \tw -2 I Z ? ! 1� t� / i. �" 1 ter yy BA.iNJ t FAIL MINA f ' t FAIL�Wptti<nwy r �'' 1 1 AS pOtN'r°C- 1 o i �d\IN�NG t 1 // 1 f r of i sl ' I i C F1AiLLlf , . a7avt9 2 t' t o + �l In r I i FIt g t l e/ I I � 1 j 1\ v t\ � i !Q f 1 WErLAnlc+S / t Nt;w t 1 5 r✓ 2 A t 1 1^ Miw1,1G a 1 t E� F MlnillnlG fv +'i t i R' pRd" w / fly 2-�0. � 1 0� V ro� t �'a if \\ I L F A ConNcLtvs nNo Pt p fa f� ' S I' r r?i�rl t 1 tiz04s r I , j / /p/ t / WciLM;ruS ~' t dIZ1 I /fits t h t Biu t(0 t c\ ! _-_�1 fX,iTIN4 0.CGE55 RO So So 1\ / d `'�- ru t f IN, CNTi26yj[� \it •\ NCw Pozmt-kTED A _ tj SEE, 'AiEr, , -2- � NEW Pelzml1 lets Ar�A 1 ' W SEG SNC-�T 0 eOTGrL MtrJE 'DcPhia j`VfIr4IW; AAZ:,A G'¢05S-4SECiUON ND 1 %O :j4L ALL_ 50' VNI�IyTVTLi3E9 13upfi 3:t 15as.,inn 7 w�Ar,4•� FBI rcotre•vtryr•, um>iC (^ I J 4 y fs i K 2 to a ' 2 �ilnllNG AT-rri N11N1i,�4 Limit 9V__M (UNGXCAVAi'coBUt-i=c'SZ ) 50 UNi3t5 i IraF3i;� '�l'��2 C Jv(pctt f(. t-%�IPnsE r Cjov �JArz l 1'1faPCzr.1 Development and Operation Plan Lor4,v1 �' Gravel Construction Entrances will be established as shown on mine plan. el-'-o`^'r'' Grading will 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 without discharge. After the processing plant is established, water from 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 sediment and erosion control for the plant and processing area for the life of the mine. 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 J oste L generally flat -lying along the perimeter of the mining areas, silt fence will M c.Nt t t be utilized to prevent sediment from leaving the mining area during initial clearing. Stormwater will be retained within the mining area, and either used in processing / 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 Construction Entrances are established, excavation will begin in the initial mining areas just north and south of the Plant and Stockpile Area. Diversion berms will established just outside the 50-foot undisturbed buffer of the wetlands, and around the perimeter of the mining area. This will prevent any sediment from leaving the disturbed area and entering the wetland area. The Visual Barrier Berms (as required by the County) will be established outside of the 50-foot undisturbed buffer along the property line, thereby preventing any sediment from leaving the permitted area. The Haut Roads and Plant and Stockpile Area will then be cleared and graded to drain into the Mining Area excavations. The perimeter berms adjacent to the Haul Roads and Plant and Stockpile Area will be "notched" at approximately 200-foot intervals to allow runoff to pass from these areas into the mining area. The openings will be backfilled utrith rip -rap and #57 .;rune co prevent erosion. Runoff writ ode nets uuiumn the Mining Areas antii pumped out. All Haul Roads will be graded to direct runoff back into the mining areas. Once the initial Mining Areas and Plant and Stockpile Areas are established, all future land disturbance will be a continuation of this process, with all runoff remaining within the mining area. When moving into a new mining area, an initial area of excavation will be established with a perimeter berm or silt fence to prevent any sediment from leaving the disturbed area / mining area. As mining progresses, all runoff will remain within the mining area. No discharge of any water will be necessary in the early stages of this operation. Any water collected within the Mining Area will be utilized for dust suppression or in the washing process. After the Mining Area has expanded to a large enough size, some occasional discharge may be necessary. At that time, a temporary 30'x60' basin will constructed within the mining area. Any water pumped from active mining areas will pass through this 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 areas will pass through the large pond before discharge. Reclamation Plan All mining 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 disturbed areas that remain above water will be graded to a 3:1 slope or flatter and seeded according to schedule to prevent erosion. Perimeter berms will be removed and graded. The plant and processing area will also be graded and seeded to prevent erosion. Any haul roads will be stabilized *... prevent erosion and left for access to the property. Entire site is within floodplain nC M N z American Materials Company, LLC Dupree Pit, Permit #74-90 Pitt County, NC Permit Modification Request 1 "=200' July 12, 2022 1Zevtsao 10 ZO-ZZ Existing Mine Property Map by Carolina Geological Services, Inc Sheet 1 of 3 Q\COUNTY � CLIP 13Y6 6 V nt,lJ t3uSU Ft i NtINln1� i i V, Pt^ U Nn cs-UURT5) ?tTr CAuaT-( WILDLiaa CLVfj CATEGORY CURRENT AFFECTED ACREAGE PROPOSED CHANGE TO AFFECTED ACREAGE TOTAL AFFECTED ACREAGE Tagings/Sediment Ponds 0.00 0.00 0.00 Stockpiles 0.00 0.00 0.00 Waste piles 4.00 0.00 4.00 Processing Areastliaul Roads 4.00 0.00 4.00 Mine Excavations 85.78 35.00 120.78 Other (Please explain) Total Affected Acreage 93.78 128.78 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 Environmental 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 direded irtr. +be, avrvaaatfrWcs, amd *,eke vAt be mr ctirac`aarge tAcsrrrrea ai s. SY rieee witritnq vt'e-a will simply be an extension of the existing excavation. Reclamation of the site will be in accordance to existing reclamation plan and permit requirements. $EA VIER 0&0+, MNP LLC- REV13E0 tt7-20-77- Entire site is within floodplain 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 Sheet 2 of 3 i Mt}P. LLL i 1�� P, i , CU/JNTl WILOI.IPe CL.LM ZVEZ 19 NEW Pfi2m1„E or2Fi¢ 'Eff 60' ' 2- nONN6 C-Q)mSLe Iry a, c41,rx-O 6,0 a o s \ s3d 'A $Yr>z5 3 (IV W ILU 4rM 4�wN p V ,.° \G �`I` CU1z2F-N-, P 'ZrN�T'tEn Ar2�, 5FE 54+c- l COMOGLIVS < DENN IS HASirz, S C �uE /J\ Dwv�s NOR—, W .bSle ►" N61L LA N411C 1 SOWN P TT COUNzy �I;V15En io-20-ZZ Pi W g12 (W p Etrrio Jae-x.y Eve ze-cm / MAcK � pN �vE72 J' rwaa�TtCS Entire site is within floodplain 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