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HomeMy WebLinkAbout2024.08.02 - FINAL Mine Permit Transfer Maps GULF MINE MIN P RMIT TRAN F R P RMIT 19 = 1 1 HWY 421 CHATHAM COUNTY , NORTH CAROLINA - --------------- L y o so y o SITE At ❑ RFp�K �. °UTN R w / THRIFT / Rpq p�mo 0 T � LOCATION MAP SITE DEVELOPER/OPERATOR SHEET INDEX ° SCALE: NTS i BOBBY A. BRANCH 402 FORESTWOOD PARK ROAD C1 COVER SHEET SANFORD, NC, 27330 CONTACT: BOBBY BRANCH PHONE: (919) 708-8465 C2 MINE MAP C3 RECLAMATION PLAN C4 EROSION CONTROL DETAILS JULY 2021 NOTE: THESE PLANS ARE A DUPLICATE OF THE PLANS PREPARED BY ENGINEERING & RAFTING AND DESIGN ENVIRONMENTAL SCIENCE COMPANY DATED 11/17/2005. THESE PLANS HAVE BEEN CREATED TO ACCOMPANY THE MINE PERMIT TRANSFER. SERVICES, INC. 6728 Carbonton Road Sanford, North Carolina 27330 (919) 499-8759 phone draftinganddesignCymail.com AGENCY REVIEW ONLY NOT FOR CONSTRUCTION project no. 2021-10 RAFTING AND DESIGN O SERVICES, INC. \ 6728 Carbonton Road \ \ I Sanford, North Carolina 27330 \ _ \ drafting nddesign@ymaii.com / � � \ \ 3 HIGH \ \ BERM \ INSTALL BERM PRIOR TO I l 1 \ \ \ \ DISTURBANCE WEST OF BERM / LD l — — — — _ — — — 50'UNDISTURBED BUFFERPROPERTY — — — — — — — - - _ _ , LIN� 300_ 1 �29p_ YHIGH WI rrrr ��� I BERM �2So � . �I � r � 6�o r rr �a$Itl Proposed 6'HIGH / r � � ' /� �rS TO ALLOW DRAINAGE TO MINE WIDEN Q r r r r r r r r r - r r �I � rrrrrr rrr BaSInG rr r � - U STRIP AS MINING PROGRESSES WITH �rrrrr� � r I I —� J � � BERM \ � � / �.�� ��, o I r r r r I , I r \ Basin A_3 Basln4 GROUND SLOPED TO DRAIN TO MINE. V) r r r r .--� r .--� .--� r .� " � r FLOCC AN USED DURING PU ING �� LLI --- I UM 0 I i rrrr � UMI'DIbC O T I rrr � rr � / \ =p�N - ram% 3'HIGH - � STREAM CROSSIBERM PROPOSNG xlsting,Pon �� LU X EXCAVATE AREA IN 20 STRIPS TO SLOPE TO BASINS \� \ s r �BUs n P 1 r — \ I 1 \ r VertS i CRUSHED SHALE � STOCKPILE PUM E_ E BAD iiV'I O BE U I ILIL EN I �� DRAINA /A CAI NOT BE ACCOMP ED l CRUSHER 1LU _ L 111'WATER FLO \ ANCE FROM OUTLET T TREAM \ Z DISTURBED AREAS I / \ Well FFICE/BATHROOM/STORA E - - - - - - r r r r r r = Z t A r r r r r r r r r 3 HIGH r r r r r r r r r r r O I r \ \ r r r r r r r r r r19 0 TAILINGS/SEDIMENT PONDS 23.68 AC / ti� �� I r l / % _ \ BERM r r r r / 1 oposed \ � � r rC�ctsttrig-Pot�el r r r r r I ��Propose r r /� Basin B \ STOCKPILES 3.0 AC / i+t-i � � o�t, d� - 12" S OOTH PLASTIC '01 rrr��r�rr � l PROCESSING AREA/HAUL ROADS 3.9 AC rrrrrrrr�- rrrrrrrr 6' HIGMINE EXCAVATION 152.12 AC �270 I _ ..... I BE - - - - - - - - - - - - - - - - ®--3 HIGEI 50'UNDISTURBED BUFFER — WASTEPILES 1.0 AC — — — - r TOTAL AFFECTED AREA 183.7 AC / / / / / \ I \' 1 V PUMP DISCHARGE POINT BASIN C FLOCCULANT USED DURING PUMPING / Basin C r r GENERAL PROJECT INFORMATION o� r r r \ / — I ( I REVISIONS The Gulf Mine No. 3 (Permit No. 19-11)contains an approximately 318.5-acre tract of land in Chatham County. Currently, 183.7 acres of land is allowed to be disturbed as noted in \ / ) / the cover letter attached to the current mining permit. LEGEND Mining will continue as proposed at the existing permitted area. Subsequent Basins F, / f J \ \ \ 1 �r/L� o� \ I I \\�'Po G, H, I, J and their associated berms will be added to collect stormwater runoff from the Property Line and Mine Permit Limits \ 200' \\ / I (�� �" � \� / new mine areas. One stream crossing is required to access these basins. During Existing 10-Year Mine Limits —� ` �Io° I I Undisturbed construction of the stream crossing, temporary berms and sediment traps will be Installed. \ \ I Buffer 28-^ Topographic Line The basins consist of diversion berms with brickbat outlets. The basins can contain the �� runoff from the 10-year rain event, and the outlets can pass the 25-year rain event. The Proposed Diversion Berm 1 I I \ I 1 r \ \ l stream crossing will consist of two(2)-48 inch diameter concrete culverts. Portions of the roadway will \ / / / Basin r �\ C I I u Existing Diversion Berm / / r I I I J 1 be overtopped during the 25-year rain event and are to be stabilized for this rain event. � Temporary Silt Fence for Stream CrossingJBasin D2 � The proposed mine areas are screened by the existing topography or by 50ft wooded buffers. A 200ft wooded buffer will be provided for the stream. Lake or Stream \ I - .� rrrrr 1 \ Ditch Upon completion of the mining activities, the disturbed areas will be sloped for positive drainage and vegetated per the vegetation plan. Berms, stockpiles, and sediment basins Tree Line NOTE: EXTEND BERM AND CHANGE BRICKBAT LOCATION will be removed with positive drainage provided. Roadways indicated on the mine maps AS NEEDED FOR FUTURE EXCAVATION. r 7 will remain in place. / < sg OOt `- Typical Basin �_ Oe qr�a MAINTENANCE CONSIDERATIONS �- ep Basin Limits 6 ya \ (typical) 1. All erosion and sediment control practices shall be checked for stability and operation r \ \ \\ NOTE: EXISTING BASIN E WAS FORMED < following every runoff-producing rainfall. But in no case less than once a week. Any r r \ — — XISTING 18 IN.CLAY PIPE BY EXCAVATION WITH SOME MINOR FILLING \ \ (TO BE REMOVED) AGENCY REVIEW ONLY < necessary repairs will be made immediately to maintain all practices as designed. For r_ Sediment Storage \ PERIMETER OF BASIN TO BE RAISED y " (typical) \ \\ (SEE DETAILS) NOT FOR CONSTRUCTION brick bat outlet sections, verify uniform crest level within a differential tolerance of Area / \ 3.0 inches. Brick Bat Bat Sectio� . \ (typical) I \ \ \ 2. Replace one-foot thick filter section of brick check dam when clogged with fine l sediments. Scale: Drawn by: MTB 1"=240' , c 3.All seeded areas shall be fertilized, re-seeded as necessary, and mulched according to Sheet: Designed by: specification in the vegetative plan. NOTE: MTB c 4. Remove sediment from each basin and restore sediment storage area to original THESE PLANS ARE A DUPLICATE OF THE PLANS PREPARED Reviewed by: � dimensions when sediment has accumulated to one-half(1/2)the design depth. BY ENGINEERING & ENVIRONMENTAL SCIENCE COMPANY �� of MTB 240 0 240 480 720 DATED 11/17/2005. THESE PLANS HAVE BEEN CREATED TO ACCOMPANY THE MINE PERMIT TRANSFER. Project Number: Date: Scale: 1" - 240' DDS JOB#: 2020-38 JULY 2021 L RAFTING AND DESIGN \ SERVICES, INC. \ 6728 Carbonton Road \ \ I Sanford, North Carolina 27330 drafting nddesign@ymaii.com \ \ \ r I �29 - \ �210 r r r r r r 7 ECLAN�ATED POND(TYP) OC Z LU � rrrrrrrr / � r rr ,� rrr J r o / I — // / rr ( r \ — —f �— — — � — — I ,. \ .-- .-- r I � _�// � .-- � I ---- 7 r ���1 1 / / \ I r r r r r I / r I r r LU x a � o� �°°// 1 / // / 1 I , , / I ✓ � � \ \ \ \\ ;� r r r r r \ I I I� \/ �� r r r � \/� / ` \ � N o z _ _ J r —i _ � � Z O \� � �\ � �� r r r r �I� � � � � � /� � r r r � rrrr i- ��� \ ' \ r r I �� / / \ _ �r r r r r r r r r \ Vegetation Plan ; / /��\ ` � r �� � / // rrrr rrr r \ \ � a A r r r r r r r r r r r r r r �� \ MJ R /— RECLAMATED POND TYP r ( L 1.0 Spread topsoil over disturbed areas and leave surface reasonably smooth and uniform. Z Q I � \ � J 2.0 Scarify surface to prepare a seedbed four to six inches deep. Use such equipment as tilling,discing, /r r r r r r r r r r r r / // I / 1 l / ! , J ( r PIT CROSS-SE CTIO / / �\ \ \ \ r r r r r r r r r r r I l J / l V tracing, or the teeth on a front end loader. r r ( / \ o ( r r SEE A ' r r \ r r r r r r r r r r r V 1 rrr I v 3.0 Mix lime and fertilizer with the soil during seedbed preparation. / �� I / / r r r \ ?gyp L 4.0 Seed on freshly prepared seedbed following the application rates for the appropriate season. 5.0 Mulch all seeded areas Immediately. 6.0 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. L / - 7.0 Inspect seeded areas and make repairs within the planting season. If vegetation is over 60%damaged, repeat steps 2 through 5. PIT CROSS-SECTIO 8.0 Permanent revegetation shall be accomplished at the specified times of the year.Temporary vegetation SEE SHEET C4 shall be applied outside of the optimal times for establishment of permanent vegetation TEMPORARY SEEDING SCHEDULE RECLAMATION AND MINE BUFFER 1. Maintain an undisturbed buffer of 200 feet from the intermittent streams and a 50ft Seeding Date:August 15 to December 15 unexcavated buffer along adjacent perimeter property lines and NCDOT right-of- ways. \� \ I r r ECLAMATED POND(TYP)\ / ` V \ J However the existing Basin A-1 is approximately 48 ft.from the stream. / ° (/ J � � � ,—, ,—, ,—, ,—, \ � \ \ \ / ( I I REVISIONS Seed Type Rate 2. Maintain existing tree and undergrowth along the property undisturbed and / �� J r rrr 1 1 1\ / ' \ L `� \ \\ \ �� Rye(grain) 120 lbs./acre unexcavated buffers. If vegetation is lacking construction 6ft high berms for 10-10-10 Fertilizer 1,000 lbs./acre screening g g g / Lime 2,000 lbs./acre 3. Perimeter mine excavation slopes shall be at least 2:1 (Horizontal:Vertical)or flatter. _ ^° _ / v J Mulch 4,000 lbs./acre 4. Perimeter berms,interior haul roads(except as show on the Plans),and stockpiles shall be removed the groundsmoothed and sloped to promote gravity drainage. \��O Seeding Date:January 1 to May 1 The roadway temporary stream crossing shall be removed during little or no flow conditions in the stream. Seed Type Rate 5. Basin outlets shall be graded to a broad swale with the brickbat section leveled within \ l Rye(grain) 120 lbs./acre the swell. \\ J \\ \\l \ \ I I Kobe lespedeza 50 lbs./acre g. Ground slopes along the perimeter of lakes shall be sloped at 2:1 (H:V)above the 1 I \ / N r \l I \ I \ \\ `J J �— I I / Lime 2,000 lbs./acre normal water level. 10-10-10 Fertilizer 750 lbs./acre Mulch 4,000 lbs./acre Seeding Date: May 1 to August 15 YP Seed Type Rate German Millet 40 lbs./acre 1 \ r r r r r r r 1 �� \ ✓ / / I J I \ /\ I r r ❑/.-- r / / c 10-10-10 Fertilizer 750 lbs./acre Lime 2,0001bS./acre J r r r r r r r r r DISTURBED AREAS Mulch 4,0001bs./acre PERMANENT SEEDING SCHEDULE TAILINGS/SEDIMENT PONDS 23.68 AC Seeding Date: Best Possible Fall:August 25-September 15 August 20-October 25 STOCKPILES 3.0 AC Late Winter: February 15-March 21 February 1-April 15 PROCESSING AREA/HAUL ROADS 3.9 AC _ �� \\� \ \ 7/ / / AGENCY REVIEW ONLY < Seed Type Rate NOT FOR CONSTRUCTION Tall Fescue 100 lbs./acre MINE EXCAVATION 152.12 AC Sericea Lespedeza 30 lbs./acre Kobe Lespedeza 10lbs./acre WASTEPILES 1.0 AC I ) 1 1 \ / J 10-10-10 Fertilizer 1,000 lbs./acre / \ Scale: 1 150 Drawn by: MTB Lime 3,000Ibs./acre / � � � I I 1 \ / ��_ � � Mulch 4,0001bs./acre Note 1: Fertilizer and lime application rates may deviate from above if soils are analyzed for optimum TOTAL AFFECTED AREA 183.7 AC / I I / /� / / / 1 Sheet: Designed by: B rates. Note 2: Mulch shall be tacked with emulsified asphalt at rate of 14 to 28 gallons/1,000 sq.ft.on slopes of 3:1 (H:V)or steeper. NOTE: Reviewed by: Note 3: After August 15, use Unscarified Sericea seed for permanent seeding period. 150 0 150 300 450 THESE PLANS ARE A DUPLICATE OF THE PLANS PREPARED C3 of 4 MTB BY ENGINEERING & ENVIRONMENTAL SCIENCE COMPANY Project Number: Date: DATED 11/17/2005. THESE PLANS HAVE BEEN CREATED TO Scale: 1" = 150' ACCOMPANY THE MINE PERMIT TRANSFER. DDS JOB#: 2020-38 JULY 2021 L BASIN SCHEDULE STREAM CROSSING DETAILS RAFTING AND DESIGN Plan View O III Basin Brick Bat Basin Surface Sediment StoragO,,ft. Brick Bat Adjacent Berm SERVICES, INC. No. Height (A)ft. Area, ft'. Plan Dim.(ft.by ft.) Length(B)ft. Height(C)ft. A-1,A-2, 2.5 >200,000 Surface Area of Basin A-1 10 4.5 A-3,&A-4, 6728 Carbonton Road Sanford, North Carolina 27330 B 5 53,700 68ft x 136ft.x 3ft. 919 36 6 Basin E CHANNEL OUTLET DETAIL ( ) 499-8759 phone c 5 44,000 0 29 6 � 0+00 draftinganddesign@ymail.com 62ft x 124ft.x 3ft. 2 D 5 37,000 57ft x 114ft.x 3ft. 32 6 ® 2-48"Dja.concrete u'°erts TYPICAL CROSS-SECTION OF RAISED BASIN E PERIMETER *D2 5 37,000 57ft x 114ft.x 3ft. 32 6 2+00 1+00 E N/A 191,664 Surface Area of Basin E 5+00 N/A 3 4+00 3+00 (NTS) F 5 82,328 66ft x 129ft x 5ft 55 6 10 ft.min. e e G 5 78,995 39 6 3�62ft x 122ft.x 5ft. Scale I ti = 50' s�Ope Elevated Ground Level H 5 52,621 39 6 2.23 ft.Max. N 52ft x 105ft.x 5ft. ope 4.83 ft. 1 5 279,238 100 6 CROSS-SECTION 80ft x 160ft.x 5ft. Existing Ground J 5 10,455 10 6 Normal Pool Note: Sediment Storage requires a depth of 5ft. 24ft x 45ft x 5ft 270 OUTLET CROSS-SECTION R' BRICK BAT SECTION SPECIFICATIONS (NTS)265 1. Remove topsoil from area of brick bat section and place brick bats directly on the filter fabric. IM �• For the horizontal mat that extends 4 ft. downstream of the check dam toe, soil shall be removed 32 ft.(approx.) to accomidate the 1ft. thick section so it is flush with existing ground level. 2' I~ 2' Raised Ground Level 2-48'Concrel c Coven s 0.5 ft. 260 2.23 ft.Max. 2. Construct check dam to dimensions specified in check dam details. The top of the dam (crest Existing Ground level)shall be maintained at constant level for the full length. Where the check dam meets the 1 4.33 ft. ', 1 soil berm, the brick shall extend at least 1.0 ft. above the crest level. 3 ,Brick Bat 2 6, 255 5+00 4+00 3+00 2+00 1+00 0+00 S TAT I O N NUMBER Filter Fabric 61 19 S° =0.02 ft/ft Z Note: See Brick Bat Section (Basins A, B, C, and D)Cross-Section for additional Construction details W Brick Bat Section (BASINS A,B,C, D, D2, F, G, H, I, and J) Basin E does not need to be modified if Basin D is installed. U O (NTS) ROADWAY CULVERT DETAILS & Z J a _ Cross-Section PROPOSED OUTLET PROTECTION V Q Brickbat 5' BASIN E CONSTRUCTION SEQUENCE W Z Roadway Cross-Section(NTS) w1. Remove existing 18 inch Clay Pipe and backfill excavation. Excavation and back fill � Q 1ft. Thick No. 57 Stone or Crushed should first be conducted at least 10 ft. from the basin perimeter. The last 10 ft. can then Brick with similar gradation. 52' i J 4 2 2 be removed. r O O A 1 1 Flow Direction 3' Soil �� Roadway s°, Downstream � Z Upstream 2 2. Conduct ground elevation survey to determine appropriate fill depth along the perimeter 1 2 Note:Extend stone venlcallyon of basin. The new fill level shall be at least 4.83 ft. above the invert of the ditch. Maximum H Note:Extend"one vertically on soeam bank to`op of bank. fill depth should not exceed 2.23 ft. z stream bank to top of bank. 2-48"Dia.Concrete Culverts = I 9 I = I= = = - = = = = I=I = = = 3' Sediment Storage 1 3. Cut vegitation flush with ground and grub roots from ground. Excavate soils upslope of J I O Invert Slope(So)=L0.015 ft/ft 22" 1 fill area to form new perimeter ground level. Disturbance and construction should be conducted = Z U Filter Fabric 1 �2' 1 Filter Fabric 4 L=84' 18, so that the exposed areas can be seeded and mulched the same day. 7 0 L 4. Construct Bick Bat section at the existing channel. W O 0 Front View � L W V 2' B 2' L W a w Filter Fabric Temporary Sediment Trap Details TEMPORARY BERM DETAIL Z (NTS) C 1 A1 Cross-Section (NTS) 5 FT a1 1 MIN Collection Berm Collection BermU�0 1 FT Z 1800 CU FT/ACRE OO g o OQ 2 20' MAINTENANCE CONSIDERATIONS ti� O 0 r O' 12"MIN. O o O 1.All erosion and sediment control practices shall be checked for stability and operation 1.0 FT following every runoff-producing rainfall. But in no case less than once a week. Any 1 FILTER necessary repairs will be made immediately to maintain all practices as designed. For FABRIC brick bat outlet sections,verify uniform crest level within a differential tolerance of Front View(NTS) Class B OVERFILL 6" 3.0 inches. DESIGN Erosion Control FOR SETTLEMENT 2 2 SETTLED 21„ Stone 10 1 1 2. Replace one-foot thick filter section of brick check dam when clogged with fine TOP\ MIN JTj 111=111- V FREEBOARD I 11=III=III=11 sediments. _ -1I I-1I I-1I-1I-1I I_ 111_111i1111 11SFT -I� II ��° 6 FT c�ofig °II,II-IIII�IL-III=III-' REVISIONS 3.All seeded areas shall be fertilized, re-seeded as necessary,and mulched according to 1 _ 2:1 SIDE 1= oho ooC5 o 0 0 -_ rl specification in the vegetative plan. a Fr -III=1 oQgo6o = f I SLOPE MAX III=11_ o o o o0oo -III=III 4.Remove sediment from each basin and restore sediment storage area to original j= �at9D -I dimensions when sediment has accumulated to one-half(112) de the design FILTER I o MAXSIDE SLOPE depth. FABRIC � 1� �cn000° _I- M NATURAL f -3 FT GROUND MIN Trap Surface Area A I 18'x 36' A' 2 15'x30' t Soil Berm Cross-Section 3 12'x 24' 17 3'to 5' 4 13'x 26' = 2 1 4'min. 1 4'min. ( f 2 2 200' 200' 1 1 Undisturbed Undisturbed C Buffer Buffer � Note: Height of berm will increase at brickbat section. Stream Crossing Construction Sequence CROSS-SECTION A-A' II-II-II-II-II-II- II-II-II-II- II-II-II-II-II-II-II- II-II-II-II-II-II-II- II- II-II-II-II (NTS) 1. Install sediment traps and temporary berms. AGENCY REVIEW ONLY ` 2. Install culvert adjacent and paralleling invert of drainage way if flowing water Bt COLLECTION BERM SPECIFICATIONS is present. If no flowing water is present, or dry conditions are present, install B NOT FOR CONSTRUCTION 0 1. Construct berm by placement of overburden. culvert in drainage way invert. undisturbed c Buffer 2. Prior to placement of materials for berm formation, cut vegetation nearly flush with ground (if applicable). 111 Scale: Drawn by: 3 After embankment filling, immediately seed and mulch embankment slopes. � � ineFl°°r(Sloped for positive Drainage) MTB 3. Compact materials in 1ft. lifts by construction traffic. NTS c 4. Revegitate the berms the same day of construction. Sheet: Designed by: MTB t i CROSS-SECTION B-B' NOTE: Reviewed by: (NTS) THESE PLANS ARE A DUPLICATE OF THE PLANS PREPARED C4 of 4 MTB BY ENGINEERING & ENVIRONMENTAL SCIENCE COMPANY � DATED 11/17/2005. THESE PLANS HAVE BEEN CREATED TO Project Number: Date: ACCOMPANY THE MINE PERMIT TRANSFER. DDS JOB#: 2020-38 JULY 2021 L