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HomeMy WebLinkAbout3._11526_GOLD_HILL_MINMOD_SHEET_3_r1 MINE LEGEND I -[732.7 / /'' �� COMPILED BY: PROPERTY/PERMIT LINE J❑N P, JACKS❑N PERMIT LINE AND I �743.5 I P 20-2 � \ INV OUT:723.44 (("" I I PIT LIMIT A R E, J A l� SON P 20-5 25'UNEXCAVATED BUFFER - - - I ' P 20 2 INV OUT:723.32 UNDISTURBED STREAM BUFFER ----------- I 112 LF OF 42"CLASS V- .,r UNDISTURBED BUFFER/------------------- I P205 �• � � • RCP @ 0.50% CONSTRUCTION LIMITS O / I I \ YI 20-1 124 LF OF 42"CLASS V •• :_ CABARRUS COUNTY WATER - - - - - - //' I 72" DIA. MANHOLE w/ RCP @ 0.50% BODY BUFFER ZONE / I 4'x4'OPEN THROAT CATCH CABARRUS COUNTY WATER - - - / BASIN TOP(8'OPENINGS) YI 20-4 4 // 72"DIA.MANHOLE w/ I THROAT INV:754.0 BODY NO BUILD BUFFER ZONE // I \ O / INV IN:748.0 4'x4'OPEN THROAT CATCH tuckSOLUTIONS, MAPPIN;G SEEINSE A 0 SHEET BASIN TOP 8"OPENINGS INC. 1�.� F53•2 INV OUT:724.00 F PIPE ATA THROAT INV:754.0 ) pp g INSTALLED PREVIOUSLY PROPOSED OR / ' I � I ,/ INV IN:748.0 www.tuckma m com APPROVED (NOT RELOCATED CONSTRUCTED) MEASURE /// � INV OUT:723.94 P 20-3&P 20-4 / I 8 LF OF 24"CLASS III RCP @ 2.50% DATE OF PHOTOGRAPHY : -� / P 20-6&P 20-7 SEDIMENT BASIN Q / // I I \\ YI 20-2&YI 20-3 8 LF OF 24 CLASS III RCP @ 2.50% / I 4'x4'OPEN THROAT CATCH 1/9/19 ROCK DAM RD RD (] ? \ BASIN(8"OPENINGS) YI 20-5&YI 20-6 ❑ 1 9.4 I I \ THROAT INV:754.0 4'x4'OPEN THROAT CATCH O \ INV OUT:748.2 BASIN(8"OPENINGS) RISER SEDIMENT BASIN RSB RSB �' �732.9 \ THROAT INV OUT:748 2 0 TEMPORARY DIVERSION DITCH � TEII� I I INSET A CULVERT XX" CMP -. I x P d PHASE 1 2 & 3 PIPE DATA I 0 DAM A- 1 SCALE: 1 " = 100' SILT FENCE �� �� o I DIVERSION CHANNEL ' J❑N P, JACKS❑N SLOPE DRAIN WATTLES AT INLETS ANDIN I � I I PLUNGE POOL ® BARBARA E, JACKS❑N I D I � NOTE: OTHER CCONTROLYMBOLS MAY BE MASURES. REFEREDTO TO DELINEATE LNO ESE EROSION I I � CATEGORY AFFECTED ACREAGE I SEDIMENT/SETTLING PONDS * 0.9 ACRES OVE BURDEN OVERBURDEN STORAGE 136.4 ACRES I Q STOCKPILES 19.0 ACRES I I -721 .7 PROCESSING/HAUL ROADS 9.8 ACRES I STO AGE AREA PIT 286.8 ACRES X X I OTHER 25.6 ACRES c TOTAL 478.5 ACRES X 4609.3 _ I / TOTAL PERMITTED AREA 553.8 ACRES 1 - - - - - - - "-" - I - HAUL ROAD TO BE LOWERED * THE PIT IS USED AS A SETTLING POND - - - - - - - / - _ I I TO ALLOW STORMWATER TO -FLOW INTO THE PIT MINE MAP NOTES: / �'� � _ / 1. THE MODIFICATIONS TO THE MINE MAP INCLUDE THE ADDITION OF A UNDISTURBED BUFFER ALONG THE ASTERN AND SOUTHEASTERN SIDE O X / O OF THE QUARRY TO REPLACE OVERBURDEN STORAGE BERMS PREVIOUSLY APPROVED, ADDITION OF ADDITIONAL PHASING FOR THE QUARRY EXPANSION, THE ADDITION OF 138.8 ACRES ON THE WESTERN SIDE OF THE QUARRY, AND CONSTRUCTION OF A MATERIAL STORAGE \ / / - - _ _------ AREA ( 1� 2. THE DESIGN AND SIZE OF THE SEDIMENT BASINS APPROVED IN 2013 MINE PERMIT MODIFICATION WERE NOT REDUCED TO REFLECT THE CHANGE IN THE OVERALL DISTURBED AREA. �-X 3. THE SEDIMENT BASINS THAT HAVE BEEN INSTALLED ARE SHOWN IN / 1 C�/ I C� �0(�.0 \ DARK GREEN. EROSION CONTROL MEASURES SHOWN IN A LIGHT JACKS❑N L/� J J CONTROBROWN L MEASURES ERE IOUSLY SHOWNPINRA DARK BUT REDNOT RE MEASURES EROSION V D PREVIOUSLY APPROVED, BUT HAVE BEEN SHIFTED TO MATCH UPDATED - 1J > O / 19.4 TOPO AND THE REMOVAL OF THE PROPOSED OVERBURDEN STORAGE JACKS❑N 0 BERM. EROSION CONTROL MEASURES SHOWN IN LIGHT BROWN AND / / /��j%� �� alley, williams, carmen, & king, inc. DARK RED ARE MEASURES THAT WERE PREVIOUSLY APPROVED IN 2012 / / �j%' S CONSULTING ENGINEERS AND 2013 USING THE UPDATED EFFICIENCY DESIGN STANDARDS. 4. PORTIONS OF INFORMATION SHOWN ON THIS MAP WERE PREPARED BY �, / / 720.8 F�r- ^ d FIRM LICENSE No. F-0203 OTHER ENGINEERING FIRMS. REFER TO PREVIOUS MODIFICATIONS FOR / I 1 HI 120 SOUTH MAIN STREET P.O. BOX 1248 CONSTRUCTION DETAILS. / II �S KANNAPOLIS, NC 28082 704/938-1515 5. STREAM CROSSINGS WERE DESIGNED BY CONCORD ENGINEERING AND O SURVEYING (CESI). USE THE ORIGINAL CONSTRUCTION PLANS AND I I ' 6, DATE.• JOB No.: DRAWN BY. CHECKED BY. DRAWING No.: o O 5-06-25 11526 RCC �iWW 11526 Gold Hill MINMOD 2020 DETAILS FOR THE CONSTRUCTION OF THE CULVERTS AND SHOWN IN °o RED / ' 6s o >� �' REVISION No. DESCRIPTION DATE INITIAL 6. PROPOSED CROSSING #2 HAS BEEN SHIFTED UPSTREAM FROM THE I PER NCDEQ COMMENTS 7- 10-20 GWW ORIGINAL DESIGN LOCATION TO ACCOMMODATE REVISIONS TO THE SITE GRADES BASED ON THE UPDATED PROPERTY LINES. ADJUST THE LOCATION AND INVERTS SHOWN ON THESE PLANS. A LOAD ANALYSIS SEE INSET A ON SHEET 3 HAS NOT BEEN PERFORMED. A CULVERT LOAD ANALYSIS SHALL BE / / I j ' FOR PIPE DATA PERFORMED BY THE CULVERT MANUFACTURER PRIOR TO THE FABRICATION OF THE CULVERT. j 1 PERMIT LIMITS AND ACREAGES ARE BASED ON AN AGGREGATE OF PROPERTY 7. PRIOR TO CONSTRUCTION OF STREAM CROSSINGS, PERMITS FOR THE / 51 .3 II DEEDS AND BOUNDARY SURVEYS. A BOUNDARY SURVEY OF THE SITE WAS STREAM IMPACTS WILL BE OBTAINED AND PROVIDED TO NCDEQ - LAND II Q NOT PERFORMED BY ALLEY, WILLIAMS, CARMEN & KING, INC. ADJACENT / TEM .DIVERSION CH NEL 20-1B I I I I QUALITY SECTION. STREAM BUFFERS SHALL REMAIN UNDISTURBED / III PROPERTY LINES AND INTERIOR PROPERTY LINES ARE APPROXIMATE AND UNTIL PERMITSHAVE-BEEN OBTAINED FOR THE DISTURBANCE. / 6 OTTOM WIDTH, .5'DEPTH III IV (J7 SHOWN FOR REFERENCE ONLY. 8. ADJACENT PROPERTY OWNERS ARE NOW OR FORMERLY AND BASED ON 2:1 SIDE SL PES / I I U1 O 0 �741 ,5 VARIABLE DIT H SLOPE I I / III I ATERIAL STORAGE CROS TION B-B HORIZONTAL CONTROL POINT 0" I j I VERTICAL CONTROL POINT 0 / // INDEX CONTOUR �--�3500 SPARKLE PROPERTIES LLC - ' II / / I I I I INTERMEDIATE CONTOUR o SPOT ELEVATION + 751.6 \ / / WATER Q PAVED ROAD \ \� o III � / \ 50 O 723.58 }y 55 25 DIRT ROAD / 4723.8 BUILDING / EXISTING GATE AND �' Z6S LOCATED OBJECT _ \ \� / ACCESS ROAD FOR �/ // FENCE x DARY K, PHILEN FORESTRY ❑PERATI❑NS TREES AND �\ (NOT TO BE USED FOR PIPE KAR A, KIEEEER \ QUARRY ACTIVITIES / \ / POLE k \ TOWER WELL Q TEMP.HIGHWALL BERM DITCH INV OUT:722.0 THIS MAP MEETS OR EXCEEDS NATIONAL MAP 4` ;6 \ 47 .6 ACCURACY STANDARDS FOR 1"=200', WITH A 725.53/ S n 1 5' CONTOUR INTERVAL, EXCLUDING AREAS MAPPED OUTSIDE OF EXISTING GROUND CONTROL OR IN PERM.SLOPE DRAIN(TYP) DENSE TREE AREAS. ED OU ET DIT _ WITH MINIM M 4'BOTTOM\ CNANNEC l 1 WIDTH AND :1 SLOPES / \ tip• \\\\\ \��\��iiiiiiiiii/ \ \\ \\��N CARO 730.26) SEAL � k A- \ \ I II I EMP. HWALL BE \ \ _ 16883 INV OUT:724.5 III _ IJ- 7-10-20 cuSigned by: 0LEY1\ \ \ 111 I - I I SO E�OD005HBA648B... 30.4 OBSERVATION WEL #3o � ' WELL TO BE PROT CTED FROM ANY DAMAGE DURING CONSTRUCTION 4733.7 / \, \ `ro 732.53 ($( P 20-1 PORTIONS OF THIS MAP HAVE BEEN COMPILED OUTSIDE J A S❑N H, CLINE // '\` \,, \°\`\ �� �� \ 350 LF OF 30"CLASS V RCP @ 1.0% THE LIMITS OF CONTROL AND THEREFORE DO NOT / D❑N A D \ MEET THE NATIONAL MAP ACCURACY STANDARDS AND TEMP.DIVERSION CHANNEL 20-1A / CARPENTER 2' BOTTOM WIDTH,2.5'DEPTH \\ Q R BECCA D, CLINE // \� ��, 2:1 SIDE SLOPES \\\ ��' \ VARIABLE DITCH SLOPE - HORIZONTAL DATUM: NORTH CAROLINA,NAD83,USFT 71 VERTICAL DATUM: NAVD88, GEOID 1999 \ \ \\\\\ INSTALL NAG SC OBN 1 Q °\\ LINER IN BENCH CONTOURS IN TREED AREAS ARE APPROXIMATE / 4758.2.2 \` `\ \ \\��\ SWALE / / NV IN:728. / \,\ \ \ \\\\ WATTLE / COMBINED FACTOR: \ \\\ I Grid to Ground=0.9998459 ATECK SL❑PEM Ground to Grid= 1.000 1541 \ \\\ \ DRAIN INLE 100 O 100 200 470 \\\\ I RELOCATE SLOPE DRAIN IN PHASE 2 35.9 11 - t WESTERN MATERIAL STORAGE AREA-PHASE 1 SCALE 1 - 100 CONSTRUCTION SEQUENCE CONTOUR INTERVAL 5' _ 1. INSTALL PIPE 20-1. COMPLETE BACKFILL. SEED AND STABILIZE DISTURBED AREAS AS SOON AS THE PIPE IS INSTALLED. I \ F 2. LOWER THE HAUL ROAD TO ALLOW RUNOFF TO ENTER THE PIT. \1\\`�\\\ I 1 \ \ \` \ 736.22\\ q 1 1 3. BEGIN CLEARING THE AREA WHERE SILT FENCE,TEMPORARY DIVERSION BERM, AND TEMPORARY DIVERSION DITCHES WILL BE INSTALLED. \\\\\\\ 4735.9 4. INSTALL THE SILT FENCE,THE TEMPORARY DIVERSIION BERM,DIVERSION CHANNEL 20-1A AND TEMPORARY DIVERSIONS IN THE LOCATIONS SHOWN ON THE PLAN. \\\ THE TEMPORARY DIVERSION BERM ON THE SOUTHERN END OF THE PROJECT AREA(SEE INSET B)WILL PREVENT ANY RUNOFF FROM FLOWING SOUTH. RUNOFF \\\\ WILL POND IN THE UPSTREAM BASIN AREA WILL OVERFLOW UPSTREAM OF THE BASIN AND FLOW NORTH AND WEST. STABILIZE THE DISTURBED AREAS WITH A \\�\\ INSTALL DIVERSION BERM I I \ \ I 1 L A R R Y W, W H I T L E Y GROUNDCOVER. p T TOP WIDTH WITH 2:1 FILL \ 5. CLEAR THE REST OF THE AREA WHERE DIVERSION CHANNEL 20-1 B WILL BE CONSTRUCTED. \\p1 SLOPES \ \ \\ SO AND �\\\ I DI❑NNE M, PIGG❑TT \ � 1 � 6. INSTALL DIVERSION CHANNEL 20-1 B AND STABILIZE WITH A GROUNDCOVER. 736.22 � I 1 \ BARBARA P, W H I T L E Y 7. CLEAR THE REST OF THE AREA WHERE MATERIAL WILL BE PLACED DURING PHASE 1. 0 \ \ ` Uu [an 5. BEGIN PLACING MATERIAL IN THE STORAGE AREA. PLACE MATERIAL ALONG THE SOUTHERN EDGE TO CONSTRUCT THE EXTERIOR SLOPE AS SOON AS POSSIBLE. \ I 1 I ENSURE THAT ALL DISTURBED AREAS DRAIN TOWARDS THE PIT. MAINTAIN A HIGHWALL BARRIER ALONG THE TOP OF SLOPES AT ALL TIMES. �3S I I \ 1 1 \ , I � � Materials Company 6. BRING THE SOUTHERN EDGE OF THE MATERIAL STORAGE AREA TO GRADE AND INSTALL THE TERRACE AND SLOPE DRAIN. SEED AND STABILIZE THE EXTERIOR 4� L A R R Y W, W H I T L E \ INSTALL SILT FENCE SLOPES BELOW THIS ELEVATION. WATTLES ARE TO BE INSTALLED AT THE INLET OF ALL SLOPE DRAINS AND A PLUNGE POOL WILL BE INSTALLED AT THE OUTLET ,40 I 3 1 .9 \ \ OF ALL SLOPE DRAINS. INSTALL A NORTH AMERICAN GREEN S150BN CHANNEL LINER IN THE BENCH CHANNELS. THE DISTURBED AREAS IN THE STORAGE AREAS 3 1 J I \, s I I AND ARE TO BE DIVERTED TO DRAIN AWAY FROM THE SLOPE AND TOWARDS THE PIT AT ALL TIMES. \\ \ I \ J 7. ONCE THE SLOPE ABOVE THE TERRACE HAS BEEN CONSTRUCTED,COMPLETE GRADING OF THE SOUTHERN SLOPE AND PROVIDE A GROUND COVER ON THE BARBARA P, W H I T L \ I w EXTERIOR SLOPES. \ 8. CONTINUE TO PLACE MATERIAL IN THE STORAGE AREA.ENSURE THAT ALL DISTURBED AREAS DRAIN TOWARDS DIVERSION CHANNEL 20-1A AND 20-1B OR THE PIT. I I 1 DIVERSION CHANNEL 20-1A AND 20-16 WILL NOT COLLECT RUNOFF UNTIL ENOUGH FILL HAS BEEN PLACED IN THE STORAGE AREA TO FORCE RUNOFF TO FLOW \ ` \ ' I GOLD HILL TOWARDS DIVERSION CHANNEL 20-1A AND 20-1 B. \ INSTALL SILT FENCE J 9. SEED AND STABILIZE AREAS AT THEY ARE BROUGHT TO GRADE. PROVIDE A TEMPORARY GROUNDCOVER ON EXTERIOR SLOPES AND INACTIVE FILL AREAS EVERY SPRING AND FALL. \ \ V I \ QUARRY 10. ONCE THE MATERIAL STORAGE PLACEMENT BEGINS IN THE NORTHERN END OF PHASE ONE,INSTALL PIPES P 20-3 AND P 20-5 AND MANHOLES YI 20-3 AND YI 20-6. INSTALL THE MANHOLES IN SECTIONS AND USE THE OPEN MANHOLES FOR INLET DRAINS. INSTALL A STORAGE AREA AROUND THE INLET AND INSTALL A \`\ I O ❑ TEMPORARY TRASH RACK. ONCE THE AREAS SURROUNDING THE MANHOLE HAS BEEN FILLED,INSTALL ANOTHER SECTION OF THE MANHOLE RISER. SEE THE INLET SUMP DETAIL ON SHEET 8. 11. AS THE MATERIAL STORAGE AREA IS BEING BROUGHT TO GRADE,INSTALL YI 20-4,YI 20-5,YI 20-7,AND YI 20-8 AND INSTALL THE OPEN TOP CATCH BASINS INLETS OI I 0 THE MANHOLES. I WESTERN MATERIAL 12. KEEP ALL DISTURBED AREAS DRAINING INTO THE PIT AT ALL TIMES. 13. INSTALL HIGH WALL PROTECTION ALONG THE TOP OF THE FILL SLOPE AT ALL TIMES -72 1 .3 STORAGE AREA 14. MONITOR ALL EROSION CONTROL MEASURES AFTER EACH RAINFALL. REMOVE ACCUMULATED SEDIMENT,AND REPAIR AND DAMAGE TO THE SEDIMENT BASINS,DIVERSION BERM,DITCHES,AND SILT FENCE. INSET B - INITIAL GRADING PHASE 1 PHASE 1 CONSTRUCTION 15. ONCE THE MATERIAL STORAGE AREA HAS BEEN FILLED TO THE PHASE LIMITS,STABILIZE THE REMAINING SLOPES AND FILL AREA PER THE RECLAMATION DETAIL 1 " - 10 0' SHEET 3 0 F J AND SEEDING SPECIFICATIONS.