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Home My WebLink About20211015_ADI_Response_mapsTO X. PROPERTY_LTNF. NOT -TO -SCALE VICINITY MAP Legend Intermittent Stream ----------- 50' Undisturbed Buffers for Intermittent Streams and Wetlands "�.•' Ditch Topographic Lines with Designated Elevation — — — — — —= Current Affected/Banded Area -------------- Proposed Addition To Affected/Bonded Area — — — — — — - Adjacent Property Lines mommommomm� Property Lines & Permit Limits {{��- Soil Berm l.�_a1 Wetlands --- — Proposed Temporary Silt Fence •: Stream/Wetlands Determination Points ' I GENERAL PROJECT DISCUSSION The Brickhaven Mine #2 Tract B (Permit No. 19-08) located in Chatham County, North Carolina, contains 348 acres of permitted land. Currently, the permitted allowable affected acreage is 94 acres. It is proposed to add an additional 50 acres of affected acreage, for a total of 144 acres of allowable affected acreage. This additional acreage is located within the mining permit limits, and no change to the total permitted area is proposed. Mining will continue as permitted in the existing mine area, to the east of existing Basin K. Erosion control for the proposed new mining area will consist of six (6) new sediment basins (Basins L, M, N, O, P and Q). Earthen berms will be constructed to divert stormwater runoff to these basins. No mining will occur north of the Progress Energy Easement that runs through the property. After mining activities are complete, lakes will be formed, with exposed ground above the water table sloped towards the lakes at a maximum slope of 2:1 (HY). Some of the haul roads will remain in -place to include from SR-1924 to the current stockpile areas. The ditches for these roadways (if present) are presently grassed and stable. The buildings or sheds will be removed. The 5'x5' riser structure and outlet pipe will remain at existing Basin K. Note: Sediment basins and other erosion control devices cannot be removed until permanent ground cover has been established. l Chatham Ridge I IC 3301 Benson or Suite 601 Property Line and Raleigh, INC 27609 / I Mine Permit Limits 1 — "Ili I It I t r. i r r i / NOTE Afloos up., '-245 NaoaTunervucewrHNWTT r , � IT • i 26S_ NOTE: NO DISTURBANCE PROPOSED NORTH OF PROGRESS ENERGY EASEMENT aTE:nePPo we R - - I I apainva3amewnNm»11 V `Nrmersection of than Is -__ Y� '`� l O§smEatsmaut Chatham Ridge LIE 3301 � Ih Benson Spite 6 1 265 ttRaleigh, NC 27609 s l I 270 4�0`9 L , e J NO P ONONZTVR NEWITHNWFT , _ 1 270 m , 1 � II I PROPOSED 2 itf' I !� saTF Tu aFT OF TNsT.o. PYLine � BASIN Ia� i Property Linea and � � f l l / i + + ' i � 1a 'samn,EnEarvn e9I eo' §A •,, Mine Permit Limits / anTlE - ,x \ �r -- %% r� FpPs A `.` 50'Undlsturbed Buffer / /j PR B OS� P x 55,5� �/ Pnarosi raiunAvouTlEr - gv ✓" „ram 50 so.v PRIMAIYO �_ S-, - mv9'� 0 50 \ 220Col. Russell Jr&OlaTaylor x _ 1,% ' I7 Mot Rd Pose cure, NC 27559 1J �' , 6(IMHER PIA3 _ NOT xVA sroewaurvos f B 6 a -_'p30.. / ro aE xwvnreo nspwwc PRocsessEs ll3 ; _�,'t" ;.. s�o��, \\R] - _ ond,afzoo, 2 '-�%/�'/,j' 18 w115. �19 ZAe,- f r l P r j j 'al PROPOSED 'talon Russell Jr&Ole T`-),l�r oRRoerowneos sa3 BASING r 1781 Moncure Flatwood Rd /// - i.. S1ITTFEWE Ct I-Ies '! /.. wit tilducnue. NC 27559 A %... ' ,-� ay'�'.... are. nPPsms iiSFwr u i \ its — . Noos.usau+ctwT NwFT. s , \^ \ // PfmP�� WAY ii9' 1 ; NOTEtau 1$ffi3FPoNOT09EFNe.VPTEO SEDONtOASY 1 mm rv3 rsonsEssEs S fi \ a PROPOSED ADDITION TO AFFECTED/BONDED AREA PROPOSED - � 50 ACRES)\ BASIN L I p `— t " 50' Unexcavated Buffer _ , i 0 OSrn { — \ n nNo / PRIMARv ounET Jahn & Rosie Smith I' PROPOSED I "� / I/ 1751 Marc.. Flarwood Rd 9 ''-'S BASIN N Marc., NC 27559 y u - ,� o osm ,. �2 ati vs uwnr Donald Brawn 301 1p s '^` i5-' f p �°.,"�.` 1715 Moncure Flavulod Rd Paiwmoo Momu%NC27559 PROP" ED R 3� T S .- / / i Nmenwnoz,mevassFr.apsmwn a ss 0 / nao srusarw.wors. _ '1 Stockpile Arc. _ 1 ^, o .ass I - Exisung Culvert PRowsEo. Kay • 80'� / / ► _ Isl..os A0 M4R OUTLET ' J 2George666C [oWn o ,+ seo ' / 2666 Corinth le Puna _ E "ay / Moncure, NC 275 Exiting 1 Culvert / L _ q I - GPoHCE fi / �I �t EXISTING " :oRGP t MINE AREA / avert. l ' a441 \ / NCDOT Gass B Riprtp, Invert N2p7 Great El 21450' ,48'her L ]6' 2hT \ �/ (18 Us wx22Thick) t Bona Wdih 10 Inven in 213.00 \ 4,J Gate t EXlstln .Inven out 211.6 .•\Jin t �iy Tapof Berm2160P. -1_ r n � K gN1 (Min. 16 Wide) \\ � Basin _ Rser culler son,,turE n ` e•S — - 5 qua 5 Square, Precast Gang S Top of Riser 212.00' - (6) 5'Slammar3, 211,00' nnn� raft 24" RCP o35 / 2 Gal, Baf n 11nverin 21300' / Invertou12120V Forebay W 3 Spillway_ _ _ ` \ $ nlve5ron 08ch 23n NCDOT class B Riprap Invert 211.00' \ Grade Area to Flow in Direction of Arrows Top=21600' \\ Shed ,\Dina lawal M.00 Office See Sheet 2 For / Note: Area of follow Basin J / Basin K Details v V / to be seeded as per ve0etation plan. 'r0 Diversion Ditch Exi_.wie u'vd r ------�--_ __-------------^ — - - Gate// • �G //� Carolina Power & Light Co 1 y 1 , / F.o.Box ls5l-PEH3n Scale: l"=;00' • = / I 50' Unexcavated Buffer I ,'�� Raleigh. NC 27602 h y,/... StreamMetlands Determination Point Coordinates 1: 35.601493,-79.007051 2: 35.602051, -79.006977 3: 35.602528,-79.007115 4: 35.598066, -79.009720 5: 35.597879, -79.009679 6: 35.597756, -79.009480 7: 35.600927, -79.008767 8: 35.600757, -79.009526 9: 35.598711,-79.012216 10: 35.598098, -79.010664 11: 35.598122, -79.010664 12: 35.598123, -79.009967 13: 36.600442, -79.010511 14: 35.601489, -79.010411 15: 36.604047,-79.007834 16: 35.603687,-79.007549 17: 35 603451, 79.007373 18: 35.600239, -79.012754 19: 35.600160, -79.013110 20: 35.599985, -79.013966 21: 35.599912, -79.014380 22: 35.599683, -79.014707 w/I 1: 35.600481,-79.010755 w/I 2: 35.600311,-79.010637 w/13: 35.600481,-79.010931 w/1 4: 35.600315,-79.010996 w/1 5: 35.600227,-79.010694 w/1 6: 35.600460,-79.011043 w/I 7: 35.600435,-79.011108 CONSTRUCTION SEQUENCE 1. Before mining begins, install the temporary diversion berms/silt fence, and construct the proposed sediment basins. Prior to construction of the basins, install silt fence and stone outlets down -slope of the basins. Install the stone outlets at the outlet pipe locations for the proposed basins. Remove silt fence after basins have been constructed and vegetation has been established on berms. Clearly only as much land as necessary to install the erosion control measures. 2. Begin clearing, grubbing, and soil excavation Extend diversion berms as needed to capture uplsope disturbance. Stabilize site areas as excavation Is completed. 3. Revegetate as per the vegetation schedule. Diversion berms shall be stabilized within 7 days of construction. Note: Prior to land disturbance, locate and establish 50' stream and wetlands buffers. No disturbance shall occur within the 50' buffers. Note: See Sheet 3 for Basin Details, Outlet Protection, and other Erosion Control Details. Skimmers shall be Faircloth manufactured. See Sheet 5 for skimmer information including size, flow rates, and installation/maintenance specifications. 1) Gri ntld habilitation' Site Area Stabilisation Stahtlimtion Time lro,m 11111n t ((stir Frame Frappe h (el• a4 nx • 1 ran t'i like,- xual dad", 7 days None one topes • 1ligh Qualip Water (IIQW1 7days None Zones I I slopes are 10' or IT Slopes sicEper 7 days less in length and are than 3:1 not steeper than 2: I, 14 da,a are alluucd. 7-days for slopes • Slopes is or 14 days greater than 50 foot flatter in length • Ail other areas Norte with slopes flatter 14 days (except for than 4A perimeters and Il W zones) • "Extensions of final, may be approved by the permitting authority I based on weiahat of other site-xlxcilic conditions that make compliance I{ inlpraGicublc` IS.ruou It lf('-)(b)) RECEIVED OCT 15 2021 LAND QUALITY MINING PROGRAM OCT 1 021 ENGINEERING & ENVIRONMENTAL DATE: 2 C SCIENCE COMPANY 09/28/2021 J 3008 Anderson Drive DRAWN; Raleigh, NC 27609 JIB (919)781-7798 9/28/21 General Property Layout REVISED: ��,, Brickhaven Mine #2 Tract B ��ali''''� Mine Permit No. 19-08 SCALE: Q Chatham Co., NC See Drawing SEAL a 2 Sheet No. 15472 J P General Shale Brick, Inc. �q''kFMGINE,•,�°_�` 300 Brick Plant Rd. oncu Mre, NC 27559 5 t'r•Ut 1tn l tttpp o f: Legend �-� Intermittent Stream - !f ----------- 50' Undisturbed Buffers for Intermittent Streams and Wetlands -•��.�� Ditch " Topographic Lines with Designated Elevation — — — Current Affected/Bonded Area --- Proposed Addition To Affected/Bonded Area — — — — — — - Adjacent Property Lines Property Lines & Permit Limits/ Soil Berm -- E Wetlands �S - ----- --- Proposed Temporary Silt Fence - f c •. Stream/Wetlands Determination Points -/,-�i / / / / NOTE: APPROX. 2,924 SF OF WETLANDS TO BE EXCAVATED AS MINING PROGRESSES. Ditch Invert *232.00 ; + 18 19 r _i 43' PROPOSED -- - - SILT FENCE 21 65 �ll ■� G l PROPOSED s� 119,; - NOTE: APPROX. 1,505 SF POND TO BE EXCAVATED SECONDARY i _ AS MINING PROGRESSES. I - l SPILLWAY BAFFLES PROPOSED - - - - - 85' J BASIN L G i 85 t, PROPOSED i - ► ! t: SKIMMER AND i _ - _"_-511 \ t� l n •, G 1 'I PROPOSED BASIN Q 84' tl NOTE: APPROX. 79 LINEAR FT. OF STREAM NO DISTURBANCE WITHIN 50 FT. ' 601 + 14 PROPOSED y ` o SKIMMER AND 84 _ --6 JI_ 88 - p �j L l 8 PRIMARY OUTLET t/ Q�T 0� __ ` �5x �� - �Po�50' Undisturbed Buffer �? v x (03 <'-- 1 PROPOSED 7 POSED g� �1. �Q'� 50 \\ PROPOSED SKIMMER AND PROPO r F s ' SECONDARY PRIMARY OUTLET BAS P -� CjO -' b,o��,• vv SPILLWAY 50 r \ 5� - - \� 220 CONSTRUCTION SEQUENCE 0 r� v P� \ � 1 Before mining begins, install the temporary diversion berms/silt fence, and construct ----------"'. the proposed sediment basins Prior to construction of the basins, install silt fence and v - / .;� �� _ 1, stone outlets down -slope of the basins. Install the stone outlets at the outlet pipe locations q.� �/I G 1-'� for the proposed basins. Remove silt fence after basins have been constructed and QL'� / YY V W�1 1 1 �,,.,,• ,, '�---- -- PROPOSED P P � J � . nn , vegetation has been established on berms. Clearly only as much land as necessary ; to install the erosion control measures SKIMMER AN G � A19 1 PRIMARY OUTLET ` : 2. Begin clearing, and soil excavation. Extend diversion berms as needed to 3 �9� e pe, capture uplso disturbance. Stabilize site areas as excavation Is completed. W�� ? j _ PROPOSED 3. Revegetate as per the vegetation schedule. Diversion berms shall be stabilized '-. -I ; SECONDARY within 7 days of construction. \ i W/1 5,,,- - I f SPILLWAY Stream/Wetlands Determination Point Coordinates 240 PROPOSED � 1: 35.601493, 79.007051 f lJ R�+ GRADE TOWARD A - BASIN N Q 1 \ \ 2: 35.602051,-79.006977 S g SI/y O ; \\ 3: 35.602528,-79.007115 ' \ � 4: 35.598066,-79.009720 u NOTE: APPROX 19,169 SF WETLANDS II' \ 5: 35.597879,-79.009679 . \ NO DISTURBANCE WITHIN 50 FT. 1 \\ 6: 35.597756,-79.009480 \ 7: 35.600927,-79.008767 8: 35.600757,-79.009526 9: 35.598711,-79.012216 C} 10: 35.598098,-79.010664 11: 35,598122,-79.010664 12: 35.598123,-79.009967 •-� 13: 36.600442,-79.010511 14: 35,601489, -79,010411 �- 15: 36.604047,-79.007834 16: 35.603687,-79,007549 17: 35.603451,-79.007373 • ^� /� 18: 35.600239,-79.012754 NOTE: APPROX 7,822 SF WETLANDS PRIMARY OUTLET \ _ NO DISTURBANCE WITHIN 50 FT. 19: 35.600160,-79.013110 - k- �' 20: 35.599985,-79,013966 21: 35.599912,-79.014380 1 0 22: 35.599683,-79.014707 w/1 1: 35,600481,-79.010755 + 235 9 �� PROPOSED I ;'/ w/I 2:35.600311,-79.010637 1 BASIN 1 7 w/I 3: 35.600481,-79.010931 I I V ; w/I 4: 35.600315,-79.010996 i 35 t1 OQ; 1 w/I 5: 35.600227,-79.010694 C, ;1 w/I 6: 35.600460,-79.011043 Q Stockpile Are w/I 7: 35.600435, 79.011108 --S PROPOSED Note: Prior to land disturbance, locate and establish 50' stream and wetlands buffers. p 24 ��i QO�'� I ' \ SECONDARY No disturbance shall occur within the 50' buffers. 50 �? 11 B 12 s SPILLWAY i Note: See Sheet 4 for Basin Details, Outlet Protection, and other i Q 230 10 + ; G�0' + 4 �j, PROPOSED / Erosion Control Details. Skimmers shall be Faircloth manufac1 + \ PRIMARY O ow rat n installation/maintenance enance SKIMMER ANDI � i - - "-1 --- -- r ncludingts size, flow Shes,ta d r skimmer information OUT � immer inf n ---- ' specifications. - PROPOSEDI, GPUn11d S!➢I11II/a(IUII 1 Stockpile Are - - - -- it , •, t I Existing Culvert lit 1 235 1 •1 '•\ I i i I I I I I I I I I I I I I I I I I I I 36" RCP Invert out 207. 1, 78' Long 1 ,1 Pum 1 •1 ''t 1 't3 t U •11 235 a i o 1 ! > \ 1 i0 1 i i 240 1 i 48" RCP, L=78' 1 Invert in 213.00 Invert out 211.5' BASIN M yLj ` 50, ��:� NOTE: APPROX. 198 LINEAR FT. OF STREAM NO DISTURBANCE WITHIN 50 FT. 1 - RECEIVED 8 i OCT 15 2021 PROPOSED'' 0 ,-' /f LAND QUALITY SKIMMER AND � I MINING PROGRAM F+s PRIMARY OUTLET I '7 PROPOSED C POSED /7 / ; CEIV _. Sit, A,na Sbilw tatia„ Stabilization Time Descrl inn Tune Flwne Franle F-xce pions • 1'crinl t ikas, asml dad", 7day S Now and,o • l llgh Quota) Water (I IQW) 7daps None Zones if slops are W or • Slopes steepe, 7 days less in length and are than 3: I not steeper than 2:1, 14 da a arc allowed. • Slopes ?:I or 7-days for slopes one, I days greater than 50 beet III length.\II, d, r urns None wish sl Ilus Ilan , 14 days (espl for n: than :1 perimeters and li W Zoned \ \\ 1 0 ON DAILY �' / I I- lWa-lor, ,Fliouu) be ap( roved by the permitting authority SPILLWAY / / I OCT 2021 ts"'M nwevth o h', :piificwndiu... is an.tuak,"ariplianee / I 'aqu,cticabl Iti ,,-aIl.h()iho 1 i QUA L Y PROGRAM Note: Sediment basins and other erosion control devices cannot be removed until permanent ground cover has been established. ss SILTFENCE ,' ENGINEERING & ENVIRONMENTAL °"� SCIENCE COMPANY 09J \ / 3008 Anderson Drive nxn• EXISTING v�� A �_ // Raleigh, Ne 27609 MINE AREAv� -�� r // (919) 781-7798 7 9/28/21 Mine Layout RB°� .0,.��Q�,,,� Brickhaven Mine #2 Tract B o 0 CAR Mine Permit No. 19-08 SCA Chatham Co., NC see 240� s,At ,-- x / IL15472 She General Shale Brick, Inc. Gate �v /i 9E��` 'c,` 300 Brick Plant Rd. Scale: 1" =100' 1,L01x1� Moncure, NC 27559 or: _ ,/ BASIN K DETAILS Soil Berm Cross -Section 3' to 5' 2 1 1 2' to 7' Note: Height of berm will increase at brickbat section. -H-H- H -H-H �- II II: I I II- hi-H4 - I=H-H- I- II 11= I - H II Collection Berm Specifications 1. Construct berm by placement of overburden. 2. Prior to placement of materials for berm formation, cut vegetation nearly flush with ground (if applicable). 3. Compact materials in Ift. lifts by construction traffic. Typical Roadway Cross -Section (NTS) 30' 30' 2' TO 5' �I 11-11♦3 4'F_ TO 10• 1 SKIMMER BASIN DETAIL Raffles I' Freeboard r bediment — Cross -Section storage zone View SEDIMENT BASIN SCHEDULE Design Elevations Watershed (t) q StorageVolume Cubic Ft, Skint`(3)Si. Shimmer , 70.13 126,234t 140,522 5 211.00 Precast Inflow il ace Area, square ft. Area Area (2 Oolice, Attachment Riser Invert Basin (acres) Olo efs Required Provided Dist. acre Required Provided I{ 70.13 203.45 66,121 I 81,634 212.(10' (1) Required Surface Area for Skimmer Basins based on 325 sf per cfs of Q10 peak inflow. (2) Required Volume is based on i ROO cf/ac. of disturbed area (3) Six (6) 5" Skimmers will be used. SKIMMER DETAIL Arm AS cmbly 'c Endosure We, Entry PERK �PECTIVE VIEW err, PVC Eed PVC Vert+ cw a P, -lbw Yipe \ PVC Tee rvc ripe �/ PVC i¢e 0.1ho, PMt, FRONT VIEW rr� Skimmer Basin Construction Specifications 1. Clear, grub, and strip the area under the embankment of all vegetation and root mat. Remove all surface soil containing high amounts of organic matter and stockpile or dispose of it properly. Haul all objectionable material in the designated disposal area. Place temporary sediment control measures below basin as needed. 2. Ensure that fill material for the embankment is free of roots, woody vegetation, organic matter, and other objectionable material. Place the fill in lifts not to exceed 9 inches, and machine @ompact it Over fill the embankment 6 inches to allow for settlement. 3. Shape the basin to the specified dimensions. Prevent the skimming device from settling into the lhbd by excavating a shallow pit under the skimmer or providing a low support under the Skimmer of stone or timber. 4. Place the barrel (4-inch Sched. 40 PVC pipe) on a firm, smooth foundation of impervious soil. Do not use pervious =tend] such as sand, gravel, or crashed stone around the pipe. Place the fill material around the pipe spillway in 4-inch layers and compact it under and around the pipe to at least the same density as the adjacent embankment Care must betaken not to raise the pipe from the firm contact with its foundation when compacting under the pipe haunches. 5. Assemble the skimmer following the manufacturer's instructions. 6. fay the assembled skimmeron the butternut the basin with the flexible joint at the inlet of the barrel pipe. Attach the flexible joint to the barrel pipe and position the skimmer over the exca vated pit a support. Be sure to attach a rope to the skimmer and anchor it to the side of the basin. This will be used to pull the skimmer to the side for maintenance. 7. Earthen Spillways- Install the spillway in undisturbed soil to the greatest extent possible. The spillway should he lined with laminated plastic or impermeable geotextile fabric. The fabric must be wide and long enough to cover the bottom and sides and extend onto the rap of the data for anchoring in a trench. The edges may be secured with 8-inch staples or pins. The fabric must belong enough to extend down the slope and exit onto stable ground. The width of the fabric must be one piece, nor joined car spliced; otherwise water can get under the fabric. If the length of the fabric is insufficient for the entire length of the spillway, multiple sections, spanning the complete width, may be used. The upper section(s) should overlap the lower section(s) so that water cannot flow under the fabric. Secure the upper edge and sides of the fabric in a trench with staples or pins. 8. Inlets- Discharge water into the basin in a manner to prevent erosion. Ensure that the diversion barns will have positive drainage to the upper end of the basin. 9. Erosion Control - Construct the structure so that the disturbed area is minimized. Divert surface water away from bare areas. Complete the embankment before the area is cleared. Stabilize the emerge ncy spillway embankment and all other disturbed ar eas above the Skimmer Basin Maintenance Inspect skimmer sediment basins at least weekly and after each significant (one half inch or greater) rainfall event and repair immediately. Remove sediment and restore the basin to its original dimensions when sediment accumulates to one-half the height of the first baffle. Pull the skimmer to one side so that the sediment undemeath it can be excavated. Excavate the sediment from the entire basin, not just around the skimmer or the first cell. Make sure vegetation growing in the bottom of the basin does not hold down the skimmer. Repair the baffles if they are damaged. Re -anchor the baffles if water is flowing underneath or around them. If the skimmer Is clogged with trash and there is water in the basin, usuallyjerking on the rope will make the skimmer bob up and down and dislodge the debris and restore flow. If this does not work, pull the skimmer over to the side of the basin and remove the debris. Also check the orifice inside the skimmer to see if it is clogged; if so remove the debris. If the skimmer arm or barrel pipe is clogged, the orifice can be removed and the obstruction cleared with a plumber's snake or by flushing with water. Be sum and replace the orifice beforg repositioning the skimmer. Check the fabric lined spillway for damage and make any re quired repairs with fabric that spans the full width of the spillway. Check the embank ment, spillways, and outlet for erosion damage, and inspect the embankment for piping and settlement. Make all necessary repaifk immediately. Remove all trash and other debris from the skimmer and pool areas. Embankment Z Fo pTooR o iricb . A I I� 001 { lA°vim Precast Riser Outlet Structure 5' x 5' Square Top of Riser = 212.00' (6) 5" Skimmer Attachment = 211.00' 36" RCP Invert 208.00 BAFFLE DETAILS FOR SEDIMENT BASIN (NTS) PERSEPECTIVE VIEW Support rope to wire to prevent sagging b CROSS-SECTION BAFFLE (NTS) Support Post, 24'into Stake to bottom or side Goir esh or simiiar, stapled or trenched into bottom or aide Porous Baffle Specifications 1. Grade the basin s , that the bottom is at equal ch,vala v. 2. Steel posts shall be driven to at least 24 inches below ground surface and spaced at 4 a. centers. 3. Top of fabric shall be at least 6 inches above same spillway elevation and 2 inches Iowa than berm elevation. 4. Bottom and sides of fabric shall be anchored in a 6 inch trench of pinned with 8 inch long erosion comrul reading staples. 5. The baffles shall be composed of coir fiber mining with the following specifications. Coir Fiber Mat Specifications 100%cocount fiber (coir) twine waxen into high strength matrix Thickness: 0.30 or mioimum Tensile Strength: 1348x 626If/ft rumonsure Elongation: 34%x 38%maximum Flexibility (mg -cm): 65030 x 29500 Flow velocity: Observed ❑ ft/sec Weight 20 oz/SY Size: 6.6 x 164 ft (120 SY) 'e" Factor: 0.002 Open Area (measured): 50% Now Porous baffles are to be tied back into bri in embanknucoas at bottom and sides of the weir. s Top of Berm = 216.00' it, Velocity Dissipater NCDOT Class'B' Riprap Min. 18'Lx9'Wx22" Thick D50=6" 36" RCP Invert Out = 207.50' IU Wide Emergency Spillway w/ Erosion Control Fabric Liner ' \ Crest El. = 214.50' t , m 4 Scale: 1" = 60' \ram..-.. 4 sf 22 cf Ezq� e 7-,47 oP 7O, r k= t e!mi16.00, yy.001 31 NortoaA?00 48" RCP Inv. Out = 211.50' OUTLET PROTECTION DETAILS 36" RCP I*r 1 C3 l J r Velocity Dissipator - NCDOT Class 'B' Ri ra 9' Mln. 18'Lx9'Wx22'ihiX =1 D506" )J 18' No - RECEIVED I d OCT 15 2021 LAND QUALITY MINING PROGRAt: OCT & 021 �V\ ENGINEERING & ENVIRONMENTAL DATE: 2 C SCIENCE COMPANY 09/28/2021 J 3008 Anderson Drive DRAWN: Raleigh, NC 27609 (919) 781-7798 JKj 9i28i21 Erosion Control Details REVISED: `t�p11it1It►tl//I/t ' ��,•o��N �Rpl� Brickhaven Mine #2 Tract B �Q�p4Essra, Mine Permit No. 19-08 SCALE: L SEA1_ Chatham Co., NC See Drawing 15472 ' F = General Shale Brick, Inc. Sheet N . 4 N 3 ... 300 Brick Plant Rd. ,�K'SH`��. Moncure, NC 27559 of: SILT FENCE DETAILS SEDIMENT BASIN W/ SKIMMER DETAIL TOP OF EMBANKMENT RISER STRUCTURE 1' MIN. n.r h i•Yq ,y rr. ti EMERGENCY SPILLWAY TRASH RACK FREEBOARD- �u=illl�uu=llB, 1'MIN.uu=Vll=illl=li-ills1111= ? SKIMMER 1- ` oQE�,� AII�`ll1h=UA�Nll�pll I RN�IIk��U�UN S'siop u��VIIII�IIV-lla�kll-1,-lHl-llllrllu�lpU F flu flat=lru?au IfV OV�GO- Vlf_ VV=VV=UU IIII? 0 Mal I '->I CLASS B STONE PAD r CUT-dFF ANTI SEEP (4' X 4' X V MIN.) ANTIFLOTATION BLOCK SECTIONAL VIEW L TRENCH COLLAR 2' DEEP 1.1 NOTES 1. SEED AND PLACE MATTING FOR EROSION CONTROL ON INTERIOR AND EXTERIOR SIDESLOPES. 2. INSTALL A MINIMUM OF 3 COIR FIBER BAFFLES IN ACCORDANCE WITH PRACTICE STANDARD 6.65. 3. INSTALL SKIMMER AND COUPLING TO RISER STRUCTURE OR DIRECTLY INTO EMBANKMENT 1 FT. FROM BOTTOM OF BASIN. 4. THE ARM PIPE SHALL HAVE A MINIMUM LENGTH OF 6 F f BETWEEN THE SKIMMER AND COUPLING. BARREL 4 - PIPE STABILIZED OUTLET NOT TO SCALE Pipe Connections - Ensure that all conduit connections are watertight. Rod and lug type connector bands with gaskets are preferred for corrugated metal pipe to assure watertightness under maximum loading and internal pressure. Do not use dimple (universal) connectors under any circumstances. Trash guard -It is important that a suitable trash guard be installed to prevent the riser and barrel pipes from becoming clogged. Install a trash guard on the top of the riser to prevent trash and other debris from clogging the conduit. A combination anti -vortex device and trash guard improves the efficiency of the principal spillway and protects against trash intake. Protection against piping - Install at least one watertight antiseep collar with a minimum projection of 1.5 feet around the barrel of principal spillway conduits, 8 inches or larger in diameter. Locate the anti -seep collar slightly downstream from the dam center line. A properly designed drainage diaphragm installed around the barrel may be used instead of an anti -seep collar when it is appropriate. Proposed Sediment Basin Calculations I -- Design Elevations (ft. EL) Surface Area at normal pool; Skimmer inlet Outlet Crest of Inflow care fl. Storage Volume, Cubic Ft. Inlet & Draw Down (s) Invert of Top of Top of 2-yr 24-hr 10-yr 24-hr 25-yr 24-hr Watershed Weighted - _ 9 Riser Dia., Barrel Dia., Height of Invert of Second Area Average Tc, (t) 2)ITArea Time, hours Horizontal ary Berm Basin O cfs (z) Orifice, inches inches Berm, ft Horizontal Riser Storm Elev. Storm Elev. Storm Elev. CN minutes to' Required Provided Dist., acre Required Provided inches Pi Pipe Spillway --- (acres) -- 57,800 43,200 59,384 4 70.8 18 12" 7.0 221.00 220.00 223.00 225.00 227.00 ' 224.57 225.48 225.81 L 24.00 94 15.2 126.71 55,119 (340'xl70')_7832 _ 12.7 20,593 14976 21,488 3 -- 52.8 18" -12" 6.0 224.00 223.00 226.00 227.25 229.00 227.12 227.71 227.89 2Q,800 M 8.32 94 ; 47.34 (zgo xap' N 8.22 94 11.8 47.96 2Q862 21,000 14,796 21,628 3 53.1 181, 12" 6.0 224.00 223.00 226.00 227.25 229.00 227.10 227.71 227.90 _ _.. 1. _ (210xl00') O 8.06 94 14.8 43.06 18,731 19,208 8.06 14,508 19,804 3 48.7 18" 12" 6.0 228.00 227.00 230.00 231.25 233.00 231.20 231.72 231.88 -_ -_. P 7.24 94 10.1 44.51 19,362 19,500 7.24+1,3,032 2Q'1783 49.5 18" 12" 6.0 232.00 231.00 234.00 235.00 237.00 234.95 235.47 235.63 - (260'x75')-15.83 37162 38,000 13.955,110 39,149 4 46.7 18" �12" 6.25 216.00 215.00 218.00 219.50 221.25 j 219.17 219.97 220.25 92 13.5 85.43 (see sheer) _ (1) Required Surface Area is based on 435 sf per Os of 010 peak inflow NOTE: SEE SHEET 1 FOR BAFFLE SPACING (2) Required Volume is based on 1800 cf/ac. of disturbed area (3) From invert of horizontal pipe to top of berm OUTLET PROTECTION DETAILS SECONDARY SPILLWAY 3 20' O D -.06 L1C JJ 9ft. - - ,TCMP Outlet Pipe ('�Iosioo Laminated Plastic Lining or 3ft. 3e Impermeable Geotextile Fabric 1 i � n 8 ft. Note: Inspect outlet protection structures weekly and after significant (1/2" or gn rainfall events to see if any erosion around or below the riprap has taken 1 or if stones have been dislodged. Immediately make all needed repairs to prevent further damage. Basin Maintenance Inspect skimmer sediment basins at least weekly and after each significant (one half inch or greater) rainfall event and repair immediately. Remove sediment and restore the basin to its original dimensions when sediment accumulates to one-half the height of the first baffle. Pull the skimmer to one side so that the sediment underneath it can be excavated Excavate the sediment from the entire basin, not just around the skimmer or the first cell. Make sure vegetation growing in the bottom of the basin does not hold down the skimmer. Repair the baffles if they are damaged. Re -anchor the baffles if water is flowing underneath or around them. If the skimmer is clogged with trash and there is water in the basin, usually jerking on the rope will make the skimmer bob up and down and dislodge the debris and restore Flow. If this does not work, pull the skimmer over to the side of t he basin and remove the debris. Also check the orifice inside the skimmer to see if it is clogged; if so remove the debris. If the skimmer arm or barrel pipe is clogged, the orifice can be removed and the obstruction cleared with a plumbers snake or by flushing with water. Be sure and replace the orifice before repositioning the skimmer. Check the fabric lined spillway for damage and make any regtltred repairs with fabric that spans the full width of the spillway. Check the embank ment, spillways, and outlet for erosion damage, and inspect the embankment for piping and iiettlement. Make all necessary repairs immediately. Remove all trash and other debris from the skimmer and pool areas. 3 -1 1 1.75'to 2.0' 4" FAIRCLOTH SKIMMER Skimmer shown in floarin.q position 2" Vent •,ith Orange tip 4" Sch 40 4" pvc float Coupling Connection 1 3" Sch 40 SOLID pvc barrel or"arm" SUPPLIED BY USER 3 I I 3" hose. ss clamps 3" threaded male nipple 4" inlet on outlet end extension Aluminum straps suspending horizontal intake on33" 4" Orifice/ Patent9: 5,820,751 4" HEAD (distance from center of onficefinlet to water surface (1) Coupling can be removed and hose attached to outlet using the threaded nipple. Attach directly to metal riser ensuring a water tight connection. Note: SCH 40 solid PVC barrel/arm should be between 6' and 10' in length. Note: Design Flow Rates For 3" Skimmer: 0.11 cfs Note: Design Flow Rates For 4" Skimmer: 0.23 cfs Note: Flow rates are from Faircloth product cut sheets. 1 TOP OF SILT FENCE MUST BE AT LEAST I' ABOVE THE TOP OF THE WASHED STONE - - Minimum 12 - la Gauge 1"termedale Wires Minimum Ill Gauge Linc Wires 8 MAXIMUM Iwazlablcas m'rmud by lAernginem) steel Post -�--r We. Wim Fabric _ Silt Fence Geotextile Fabric 26" Min. Grade 8" Minimum Cover over Skirt ` 4" Minimum horizontal tutu Silt Fence Specifications 1. Steel posts shall be a minimum of 5 ft. long, weigh a minimum of 1.3 HIM, and have prolccnons to aid in fastening the wire or fabric. Steel posts shall also have a metal plate welded near the bottom such that when the post is driven to the proper depth, the plate will be below the ground level for added stability. 2. Woven Wire Fence shall conform to the requirements of ASTM A 116, Class I zinc coating for wire. The fence shall be at least 32 in. high and shall have at least line (horizontal) wires. Stay (vertical) wines shall be spaced 12 in. apart. The top and bottom wires shall be 10 gage. All other wires shall be 12 Y2 gage. 3. Fare, Fabric shall be composed of fibers consisting of long chain synthetic polymers composed of at least 85% by weight of polyolefins, polyesters, or polyamiles. The fibers shall be formed into a network such that the filaments or yarns retain dimensional stability relative to each other. The filter fabric shall be few of any treatment or coating which might adversely alter its physical pmpenins after installation. The fabric shall be free of defects or flaws which significantly affect its physical and/or filtering properties. The fabric shall have a minimum width of 36 inches. The filter Fabric shall be famished with suitable wrapping forprotection against moisture and extended ultraviolet prior to placement. The filter Fabric shall meet the following minimum physical requirements: PROPERTY* TESTMETFIOD REQUIRED VALUE Tensile Strength ASTM D 4632 1 400 Newmns (901b) Elongation AS D 4632 <50%-fabric self supporting > a - fabric requires woven - unre wirebacking Apparent Opening Size (AOS)**j ASTM D 4751 0.84 millimeter (U.S. Sieve#20) Permitivity ASTM D 4491 0.01 Sec.' _,Ultraviolet Stability(mmined ASTM D4355 70% snength after 5001rs of ultraviolet exposure) 4. A 6 in. x 6 in. trench shall be dug on the upstream side of the silt fence. The silt fence shall line the trench and extend up the posts for the remainder y of the fabric width. The trench shall then be backfilled and tamped. Silt fence fabrics shall be spliced together only at supporting posts with a minimum of 6 in of overlap and in such a manner to prevent silt from passing between the mo cods At the time of installation the fabric will be rejected if it has any detects, detenomnon or other damage incurred during manufacture, hanspognnom, or storage. Silt Fence Maintenance Considerations 1. Inspect silt fences at least once a week and after each rainfall. Make any required repairs immediately. 2. Should the fabric of a ,sediment fence collapse, tear, decompose or become ineffective, replace it promptly. 3. Remove the sediment deposits as necessary to provide adequate storage volume for the next rain and to reduce pressure on the fence. Take care to avoid undermining the fence during cleanout. 4- Remove all fencing materials and unstable sediment deposits and bring the area to grade and stabilize it after the contributing drainage area has been properly stabilized. SILT FENCE STONE OUTLET WIRE FENCE MAIN SILT FENCE HARDWARE CLOTH WASHED STONE FRONT VIEW Note: Remove vegetation and topsoil from stone filter section. f BURY WIRE FENCE, `FILTER FABRIC, ANDHARDWARE CLOTH IN TRENCH STEEL FENCE POST SETWIX2MART � MN_ it wro sour GRIDUND FILTER OF 457 WASHEDSTONE BURY WIRE FENCE AND HARDWARE CLOTH RECEIVED OCT 15 2021 LAND QUALITY MINING PROGRkt)A 3' FILTER FABRIC ON GROUND BURY 6' OF UPPER EDGE OF FILTER FABRIC IN TRENCH 1021 '%�� SECTION VIEW ENGINEERING & ENVIRONMENTAL H 2 C SCIENCE COMPANY J 3008 Anderson Drive Raleigh, NC 27609 (919)781-7798 9/28/21 Erosion Control Details `��atuur°nn q Brickhaven Mine #2 Tract B Mine Permit No. 19-08 Chatham Co., NCS It r3472 General Shale Brick, Inc. 300 Brick Plant Rd. 4 ",intuit"` Moncure, NC 27559 of: c Legend r V� Intermittent Stream ----------- 50' Undisturbed Buffers for Interraittent Streams and Wetlands Ditch --- - Topographic Lines with Designated Elevation — — — — — — - Current Affected/Bonded Area ---------------- Proposed Addition To Affected/Bonded Area — — — — — — - Adjacent Property Lines ENWNEEEWM� Property Lines & Permit Limits Wetlands Reclamation Considerations 1. Maintain undisturbed buffer of at least 50ft from mine permit limits, wetlands and natural bodies of water. 2. Perimeter mine excavation slopes shall 2:1 (Horizontal to Vertical) or flatter. 3. Grade mine floor for sheet water flow towards the lakes. 4.Perimeter berms, haul roads, and stock pile areas shall be removed and the ground smoothed and sloped to promote gravity drainage. The 5'x5' concrete riser and outlet pipe will remain at Basin K. 5. Revegetation per the Schedule below. Vegetation Plan 1.Spread topsoil over disturbed areas and leave surface reasonably smooth and uniform. 2.Scarify surface to prepare a seedbed four to six inches deep. Use such equipment as tilling, discing, tracing, or the teeth on a front end loader. 3.Mix lime and fertilizer with the soil during seedbed preparation. 4.Seed on freshly prepared seedbed following the application rates for the appropriate season. 5.Mulch all seeded areas immediately. 6.Tack mulch on slopes 3:1 (Horizontal : Vertical) or steeper by spraying with emulsified asphalt. Use an anchoring tool such as a farming disc set in a vertical position on slopes less than 3:1. Mulch netting may also be used on slopes. 7.Inspect seeded areas and make repairs within the planting season. If vegetation is over 60% damaged, repeat steps 2 through 5. 8.Permanent revegetation shall be accomplished at the specified times of the year. Temporary vegetation shall be applied outside of the optimal times for establishment of permanent vegetation TEMPORARY SEEDING SCHEDULE Seeding Date: August 15 to December 15 Seed Type Rate Rye (grain) 120 lbs./acre 10-10-10 Fertilizer 1,0001bs./acre Lime 2,000 lbs./acre Mulch 4,000lbs./acre Seeding Date: January 1 to May 1 Seed Type Rate Rye (grain) 120lbs./acre Lime 2,000 lbs./acre 10-10-10 Fertilizer 7501bs./acre Mulch 4,000lbs./acre Seeding Date: May 1 to August 15 Seed Type Rate German Millet 40 lbs./acre 10-10-10 Fertilizer 7501bs./acre Lime 2,000 lbs./acre Mulch 4,000lbs./acre PERMANENT SEEDING SCHEDULE Seeding Date: Best Possible Fall: August 25- September 15 August 20- October 25 Late Winter: February 15- March 21 February 1- April 15 Seed Type Rate Tall Fescue 100lbs./acre Sericea Lespedeza 30 lbs./acre Kobe Lespedeza 10 lbs./acre 10-10-10 Fertilizer 1,0001bs./acre Lime 3,0001bs./acre Mulch 4,000lbs./acre Note 1: Fertilizer and lime application rates may deviate from above if soils are analyzed for optimum rates. Note 2: Mulch shall be tacked with emulsified asphalt at rate of 14 to 28 gallons/1,000 sq. If. on slopes of 3:1(H: V) or steeper. Note 3: After August 15, use Unscarifted Sericea seed for permanent seeding period ..,A - 260, r — —- — 1 5 5 i0' S0' w w s , Chatham Ridge ll:P 3301 Benson or Salteb01 Property Line and Raleigh, NC27609 'JII --------1 - ---------------- 1 l 1 i Cross Section A -A' (NTS) 50' w Joho & Rove Snd1h T 1751 Mon . Flatwood Rd Monmae, NC 27559 Donald Brown 1715 Moncure Flamood Rd �� \ / Moncunt, NC 27559 i r Scale: 1" = Cross Section B-B' (NTS) 50 j r - _ - - _ 7 RECEIVED H-..F1V OCT 15 2021 OCT 2021 LAND QUAU,r MINING PROGRi; ,., ENGINEERING & ENVIRONMENTAL DATE: 2 C SCIENCE COMPANY 09/28/2021 J 3008 Anderson Drive DRAWN: Raleigh, NC 27609 JKJ (919) 781-7798 Reclamation Plan REVISED: 9/28/21 O`�Brickhaven Mine #2 Tract B Mine Permit No, 19-08 N�ALE: Q Chatham Co., NC 1 = 300' SEAL �- { 15472 �/ Sheet No. /�_ General Shale Brick, Inc. C �!,�9'.FNGINE�'��` 300 Brick Plant Rd. J'CK SH« Moncure, NC 27559 of: