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HomeMy WebLinkAbout20210607_Mine_Mapse 133 a' h / 11e m o i r 1139 77 114 14, 02. 1.72 SAND MINE PLAN ROSINDALE SAND, LLC LOCATED IN CARVERS CREEK TOWNSHIP, BLADEN COUNTY, NORTH CAROLINA DESCRIPTION OF WORK: SAND MINE OPERATION OWNER: ROSINDALE SAND, LLC 1402 CANAL COVE ROAD LAKE WACCAMAW N.C. 28450 '' o0 1805 1708 1700 1809 ..Lill �1 1778 BVP ao 701 BUs 1760 ry qa RQq , n 171 `'f 126 BYF BUS 0 70 1759 m - y ;tl " ti 1771 Bluefield 1788 !3 lu 1709 1704 1 1713 1711 v n 57 �' Lisbon Clarks 1712 Crossroads m 1713 760 708 m 1, 7K m a k 5 7 7ra mr� 1�; I4 17j-7 �" 171t 1712 1 1721 Bladen Springs ,1108' 1713 7 1726 16 00 �. 13 1769 •-l. .131 0 A �. ierson 1 \. Y� a `1 5 b i 1755 1754 Rosindale 1 1.756 1708 r as"2a� a „wN 7 Q V Y -7 6 1725 a,� 174g Sj o-b1 7, �.m v 1757 Baltimore 1745 Ij Carvers Creek t J1532"' 49 2.Nk SO �� 15i3 Rowan 53 a 15'4 �a 1534 ti \ 1730 49 Fear >5 '�Ol1 1538 r � 1730 1731 , q9 revt�rrcuer r es`t' Kelly 53 7 1732 PLANTATION .1539 154t3 •i_1 - `. +,783 'SD "-? bM 1541 Qn 9 .Q 1770 'fm 1542 '9$ s 1744. 1780 q. 7 ."�' S 87�' , 1539 0. Sites 752 t s� as/ sag " 1746 _ Zora �>s .DPI .., .. 1 75� e o y1 t 749 ., i 1787 34 \ , �TJ w 1150 �.:, 17' Council N 75 I 1721 \ 45 R \ ` "..... 17 17` 30 vs rarkab l N+68. A-ff [t; RECEIVED JUN 0-; 2021 J) Jp > 2 Y� 4 5 S q% o W QUry� Lu 0~U'mw Z W N r O LLfpJ JJ W O �?4, >� D� �z J to N QLU Z�:;Q LUQU Q ZU� U oar U Z zo � 0 < rn v / Q CL W o 03-31-21 G U) -j m 3 ale: ag HORZ. 1 "= 400' oJ � o Drawn: Z Y 9W a 7 ' ) U cne ea: ZOO w 9W Project No: vv Ii U PRELIMINARY PLAN CARp�''%, ;J�O...oFESS1p•N..29% SEAL =_ L-2876 DATE: 03-31-21 Sheet No: 1 or: � • • • • • • • • • • • • • • • • • • • • • • • • • • PERMIT BOUNDARY LINE BEARING DISTANCE L51 N 23-13'13" E 78.44' L52 N 29'18'02" E 62.99' L53 N 60'41'58" W 22.60' L54 S62'33'43"W 77.9v L56 N'7P'r,-1'5`'N1 1_524' L56 N 38°38'W W 121.65' L57 N 02'30'17" W 93.64' L58 N 06°31'27" E 33.61' L59 N 52'51'27"W 101.42' 1_60 N 06-11'32" E 87.96' L61 N 45'37'07" E 35.64' L62 N 23'34'27" E 87.22' L63 N 18'1422'W 53.52' L64 N 44'41'28" W 70.15 L55 N 42-54'32" W 58.96' L66 N 22'31'28"W 63.82' L67 N 44'07'47" W 72.20' L68 N 08'0S'09" W 69.1 Y L69 N 36'28'49" E 33.02' L70 N 37'29'40'E 5L57' V1 S 88°32'17" E 29.88' L72 N 80'27'57" E 48.73' L73 N 76'54'50" E 61,75' L74 N 87'11'31" E 46.82' L75 S 16'33'48' E 65.80' L76 S44'16'19'W 40.51' V7 S 12'14'23"W 60.5T L78 S 45 45'W" E 105A4' L79 S 73-3647" E 87.58' L80 S 11*37'19' E 70.12' L81 S OS 47'33" E 110.17' L82 S 00137'21" W 63.93' L83 S 02'12'51" E 42.82' LM S 2W5907' E 1.72' L85 5 53'1706 E 70.64' L86 S 51'1909 E 76.22' E87 S 42'21 12' E 92.03' L88 S65'1051 E 50.27' L89 S24'4909 W 96.22' L90 S 20'02'47' W 86.92' L91 S 29°16'13' W 45.60' L92 S 29'18'02" W 70.95' L93 S 23'13'13' W 83.M' L94 S40'29'32° W 83.33' L95 N 44'25'29"W 796 .210.82' N 49'16'38" W 76.25' L97 N 45'48'12"W 85.82' L98 N 41'51'06" W SB.ST L99 N 59'57'15"W 29.88' L100 S 89'41'24"W 39.29' LINE IBEARING IDISTANCE L101 IS 78'29'30' W 48.13' L102 N87'5707"W 65.27' L103 N 67DOE12"IN 152.99 L104 N 59'W'06" W 63.47' LiuS N6L'"a5ta'w' :91"' 1_106 N 66'32'26" W 53.17' L107 N 77'50'26"W 37.06' L108 S88110151"W 31.40' L109 S66'51'06"W 17.80' L110 S 60'20'08'W 22.20' L111 S 29'32'01" W 1204' L112 S 10'17'28' E 6t22' L113 S 02'50'17' E 207.18' L114 S 06-MAI"W 120.24' L115 IS O4'01'26" W 16L28' L116 IS 13'27'12"W 150S4' L117 S 12'28'18' W 297.02' L118 S 13'05'37' W 147.00' L119 S 17'23'02" W IWAT 7120 S 15'26'06" W 163.81' L121 S 13°52'10"W 350.16, L122 S 14'18'11"W 273.58' L123 S 17°385Z W 186.28' L124 S 16°26'19"W 170.33' L125 S 22'01'49" W 79.74' L126 S 35'44'33" W 71.01, L127 S 46'53'68" W 68.50' L128 S 51'39'14'W 124.37' L129 IS 52-1618"W 299.16' L130 IS 52'48'23"W 98.89 L131 S 43'3422" W 68.074 L132 S 40'50'46" W 63.2T L133 S 51'57'07"W 42.93' L134 S 55'15 47"W 47.21' L135 S 49'4742" W 78 66' L1W S44'4032"W 93.75' L137 843'2941"W 13223' LAM 84Z3527"W 139.61' L139 S44'5023"W 18578' L140 S 43'3958" W 162.10, L141 S 44'0822' W 129.M' L142 S 39'1255' W 105.72' L143 S 322158"W 118.44' L144 S 48'5227" W 3L04' L145 S 58'4421"W 46.32' L746 N 24'11 54" E 6t.28' L147 IN 1 Y32'40" E 53.62' PLANNED EROSION AND SEDIMENT CONTROL PRACTICES - 1. TEMPORARY GRAVEL CONSTRUCTION ENTRANCE CE Practice 6.06 Shall be Installed at the entrance to the project from the road and will be controlled with downstream practices. During wet weather It may be necessary to wash truck tires at these locations. 2. LAND GRADING Pract I ce 6.02 Grading should be limited to areas as shown on the Plans. Cut and fill slopes shall be 311 or flatter except where specifically Indicated. 0SF 3. SEDIMENT FENCE Practice 6,62 Sediment fencing should be Installed as shown on the prevent any Interior areas from eroding onto adjacent areas. GC 4. GRASS -LINED CHANNELS Pract I ce 6.30 All overflow swales to be graded to design configuration, seeded, and stabilized If necessary with temporary straw -net liners to collect and convey site water off site as shown on Plan. After final project stabilization, swales to be re -graded and cleaned of siltation as needed to establish original contours for stormwater conveyance, STABILIZATION TIME FRAMES, SITE AREA DESCRIPTION STABILIZATION Perimeter dikes, swales, ditches and slopes 7 DAYS High Quality Water (HQW) Zones 7 DAYS Slopes steeper than 311 7 DAYS Slopes ail or flatter 14 DAYS All other areas with slopes flatter than 411 14 DAYS NOTE WELL, ANY AREAS ON -SITE WITHOUT ACTIVITY SHALL BE STABILIZED WITHIN 15 WORKING DAYS AND AS ABOVE. ALL SLOPES MUST BE STABILIZED WITHIN 21 CALENDAR DAYS OF CEASE OF ANY ACTIVITY. M= 5 50' n= 0.03 I-� 5 GRASS LINED nominal s= 0,30% CAPACITY= 100+cfs @ 1.0 fps 5:1 GRASSED CHANNEL (50 FT OVERFLOW SWALE) NOT TO SCALE BASIN WIDTH = 200 FT _ J PROPOSED WATER SURFACE M 130 10 10fFrU6A-rLI L�i{2�'LIpL� (Y &. EMERGENCY SPILLWAY DS AWAY FROM BASIN UNTIL NATURAL GROUND). RIP RAP 3TION TO BE PROVIDED \ > SB SEDIMENT BASIN W/ ROCK DAM Practice 6.63 N.T.S. NOTES: 1. CONTOURS SHOWN WERE TAKEN FROM NCDOT LIDAR LEGEND CE = CONSTRUCTION ENTRANCE • = POWER POLE --� = DRAINAGE FLOW DIRECTION E.I.P. = EXISTING IRON PIPE NOTES E.I. = EXISTING IRON 1- AREA COMPUTED BY COORDINATE METHOD E.C.M. = EXISTING CONCRETE MONUMENT RI W = RIGHT OF WAY 2. ALL DISTANCES ARE HORIZONTAL C.P. = COMPUTED POINT 3. FOR REFERENCE SEE AS NOTED EST = EXISTING SEDIMENT TRAP e = 4. SURVEYED JANUARY OF 2018 PROPERTY LINE PROOSED SILT FENCE sP COMPUTED PROPERTY LINE KELLYCLARK O.B. MGPG. 233 PIN IAI5a9349975 O�o cb v Q- Q dZ REQUIRED PERMITS (not limited to) 1. NORTH CAROLINA STATE MINING PERMIT 2. NCDENR/DWQ STORMWATER EXEMPTION y V/ CARL CL X PIN 124550534032 EXISTING GATE E2CCIMPANIES UC D.11586 Pa 6'20 Pw124s00513152 N W55'17' E ' 129.02' m N `k V1 % L74 J ^o kkN 02°24'66" E k /23.15 � e N 12a36'91"W / 244�21' / N OB'2IbO8l' ' W N10°1]2p''W L36 , 279.00 1 is L42 L4`4 I 203.60' N 02'50'17"W r w I 'w I LYCLARK i D.B. 549 PD, 233 PIN 124500 975 o �I I� ._.., lit ♦ ),r l J1=/m EXISTING DIRT ROAD (OLD WHITEHALL RD) I- o/, / 4, CARL CIARK PIN 124s00s39032 KELLYC�f D.B I PIN 124500: / / / / / / / i os.586PANIESLLC PIN 124800513182 S`T?° F9p 1 1 !gB -vN CABL CRK 5500 / PIN 12440.3T ?cyeo'Ic ♦ /ryyp^ ♦ / yhe ♦ / RMIT BOUNDARY1 ♦ e/Y ♦` /y DB W6 ELD FARMSINC Y DB ssP0.575 PIN 12450090729253 / / / / / / , Pra4ltuSm4Walvfs m,d / SPacijrc¢uons / Marl ...Ce cua�s..«w.u,:xbax�.snBaRrdlraiewl xx warmrcmru¢lwrxw¢m,eicw �@'�'�1g �f ) J�.♦� I / t vWma srhms •m,mem xaeem :4. W abcm veialf tba 4.1im wWmi. NE I � I.. tea✓ V U / \ A L. I / SWuaaa.54wfd+ru PlnrW bogieV'ra, 2A',I k k'Nwatbitizsd.. / LR-, r1a amuam fs aeswm, Man&. and muk diaAaaammt x=kir mW / advsab aig,u6wp, (Xmc54r 3mwn) rxia8mm am eepav mms&azaty. 8exova tba coasuumia� xaume axL f'Y ' Nmsdl flv m¢ huaPaTeo Ndhwd. 41 5Nvz m tlepdweh den xsxaunaog i:ceammi6illaw Aa`nster end [¢MurmisMuld tercmavd8om thahaiamsLw damsoravaL <_mim¢acahaaW�ptxd Eu 3es�newS Gy>owt a,�aW vet s3bwmm iWwlnlommTa. o,dabugo W ara (I W'N 91T1 W:r¢ famOgi. References .uas-. buvmroa 6.10'1' ecx n S.AI' 6-11, k5wd'w; 032, sodda,g &13. T mm, 9ipYka, vip ¢y •adGmo¢d CP'N(6 &d nwx 9laqumWBmrixx ba1,Sa➢inknteosux d.4S,kraa-w sadaa Nash famine 0vpnnnum atTmad® �... 5�'a>�TM1Sa�p5mnoosaP¢^ahwdemdJavclwn PrmYice sr..7wws and Spay(teatiwrs sm Definition beare4 WcyNNmeacku+ea¢inacauaNry WnemdWinvge purpose Ta xLyT ttdimenl ahe Arv�aiuo Nm, aadmovaa.oAcsma•c6xa=pains in wcxmc wkm and dmauan.a Conditions Where mrLakda�m.ytaa,m„b�.aas=Maiwa;araawraaaaavra�a,a<y Ilan mh"'rR ban 1t¢heo. efma duP i4 rawkad m a ft4 ad dhd,Mw Practice tea Applies ahmiai aeon Woo d.AxM,, The ,mk dam:• PIe/'m:w'xhz¢.. a Natal, wtlfineam&mfMem wadd & d ffkuk m murmzq ad d� aa46'mva€ x.e rexdflY apad•.1w 'lAadd wu%Es fwgmndr aedinen4 mflVe'xl, Aiatta d. I4 W.R6b b:rtMba inWL W tmp6retiaLd W.w Pienning namiolau brava rv.: iMaT-k nneeatmes,:m d0.1khNrw n Considerations 411habtewtns Ncivvor %.iYlm ..dwa'mH "I, rm4w wifebip eak'w rwdir ovatlabk. Alpug Wdr aw1'v 4aigeed la kvPiSme o-fd, ahellw�emdisdxge wlvc4ku tlnv. Ito aldd¢taco oP� t daro hIc be dhv xeNgR11bmradix*bammofuspage ibmwg4lhkl w t dad I wdnmh 1b, S vN rot>r doing 1'ainffcwms. Sha pod aboald arav °�...�.' sbwtytiwpph w¢grstr'. Tb¢ A ckhcw! awl` mck dam amt to hialx Ibm # wP of dm dmn b pssvmr Na/ wew£Smedmvicg ae�1 thaw8. 8"RsIN B4sa Rhcin4ixwW cNA. Mt 'Vkwroptpaunttlp: avd to rat LwmaM ab "ho Tds paaimpmvmda "ypm�g"mr:dt aro amapir. a`n hui�duimscmalzamapa auixLwldveimddawm'lwamfrcm Ufa •dd cQdmdnn, pnauog4d¢, am• fidaGitO[Y119i14 i " rLW Ybd iaYf.: ap058' 6or mho plmding cmmiderptiups aec prsaiw abi.5:ettmwr,:arke. Design Cl'Iterle 'nw"". wart nay K wry S,n7hmy: Sbx SpllNmy Anu. lkviu.ya Acm: 10 aorta Miniovm s¢dimcm stm•a•. 4bhaea: 3fi09 uddo €cmioL4alaMmmzl6ea p:ea Mvxrcao E. ". Atte 4J314+mn fa¢av cffiat Q;3pwkio8wr Mimmam law @ub: 21 M:nimvmllepdL 15 fm4 SS GaexuwpdhWwwNk Mussaamaeigtc lYaecwratioix5 ketpbamwmlo �.awps sl�adrp swlw sp6Wmr .dhommn ncua;euwtwx: Wh nantpa kwpdw: 3 n4ZIm.1 U]5${e[-3 YveIi tlT 1Lffi. (._. a•m htlglw-H:aimd W G fttc x++vw d43.1 CONSTRUCTION SCHEDULE and CHRONOLOGICAL SEQUENCE OF LAND 1. Obtain approval of Plan and any necessary permits, and hold a pre -construction conference prior to commencing any work. 2. Installation of Sediment Trap at end of permanent access/haul road. 3. Clearing, stumping, and construction of permanent access/haul road. 4. Clearing and stumping of access/haul road to Lake/excavation area. and associated sediment fencing downstream of access/haul road. 5. Installation of Gravel Construction Entrance. 6. Clearing and stumping of first five (5) acres of Lake/excavation area for truck turn around and stockpile location and associated 7. Construction of Lake emergency overflow swale and erosion control e. Initial excavation consisting of stripping and removal of topsoil In stockpile area (within Lake excavation area). Construction of earthen berm/sound barrier. Creation of vegetated buffer. 9. Stockpiling of 0.5 to 1.0 acres of material for creation of settling/ dewatering area / sediment basin. This area will serve as a self contained dewatering area / sediment basin and will have an earthen dam separating It from future excavation. As the Lake/excavntlon grows, the dam will be removed to enlarge the settling/deatering area/ sediment basin to Include recent completed excavated areas. 10, Construction of temporary diversion to sediment basin, 11. As 2 to 3 acres of excavation have been completed In the manner mentioned above, lake banks will be shaped, graded to 5 to 1 slopes, mulched, seeded and landscaped as shown on the plans. 12. The settling/dewatering area will remain as the finished product, keeping the excavation and pumping to a minimum. 13. Once the Lake Is completed, temporary haul roads will be removed and recta lmed. Temporary erosion control measures will be removed. Access road to site and earthen and vegetated buffers will remain permanently, 1. All measures to be Inspected weekly and after any rainfall event and needed repairs made Immediately, 2. All seeded areas shot( be fertilized, mulched, and re -seeded as necessary, according to specifications provided, to maintain a suitable vegetative cover. 3. Sediment to be removed from ditches and Grass -lined Channels when they are approximately 50% filled or sediment level Is within 2' of top of ditch bank. 4, Sediment to be removed from behind the Silt Fence when It becomes 0.5' deep. Fencing to be repaired as needed to 5. Construction entrance to be mnlnta lned In such n manner as to prevent mud or sediment from leaving the construction site. Periodic topdressing with 2-Inch stone may be required. Inspect after each rainfa Ll and immediately remove all objectionable materials spilled, washed, or tracked onto 6. Inspect temporary sediment traps after each period of significant rainfall. Remove sedl ment and restore the trap to Its original dimensions when the sediment has accumulated to 1/2 the design depth of the trap. Place the sediment that Is removed In the designated disposal area and replace the contaminated part of the gravel facing. Check the structure for damage from erosion or piping. Periodically check the depth of the spillway to ensure It Is a minimum of 1.5 ft below the low point of the embankment. Immediately fill any settlement of the embankment to slightly above design grade. Any rlprap displaced from the spillway must be replaced immediately. After nil sediment producing areas have been permanently stabilized, remove the structure and all unstable sed I ment. Smooth the area to blend with the adjoining areas and stabilize properly. CATEGORY HAUL ROADS EXISTING HAUL ROADS PROPOSED MINE EXCAVATION STOCK PILE AREAS DISTURBED UNEXCAVATED BUFFERS TOTAL AFFECTED ACREAGE 6.63 0.00 2.896 0 3 5.90 ® dwM141n�iu>£--cwemr¢v ma (,--. `PavidSf �YutiS M¢¢li `NP SWrtIXVR P_ `Btm{-0I6 ttrp$fiol d ,yg Lad •am ¢pmcsitb rar PenlMit¢%d,w taawxii;and •iLkxRiEpV¢i(atiiy wj}h epoSlrJLtteII MYYfiits. auto vnhnea-Tde rohvuc u£!bn be.ualwuM be. a hagt 3fi(q¢n1Je k¢r pa¢acmbwdan A1eWlhed areada¢esmg wto LLrebasm. em r.1¢uamd i am te§ow wraprALII,,Wd II <d is acldd ekvaliay. wham dre�imaar Imv1 a SSYK fall. pLmdd b¢ umi#[.6lhrfitw.witha M.1 uaie. Trap ciRePmcy- ;ne hdhrviiag design aumma man 1x }KosiJ¢a. 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Doom prxecaec-n zttk aPnr, m :Last SS iae m`: k° alnwtd mlma dow+iapamn rmm Mpiap pl`t5pdrJn ua sao wa4. asof5oiem dixmprear a d'exaxse4W W Ida bugkeftR: dew £x-hrthpett v pown is oeM•tl h p.•exnt.AaT,eet«cum RoeN Off--Rxk•h 14 kc wdt draam b¢£d,ttmiop awNavt stgx wttha mtvmuaadrniazon2tmhar.. tm, m18 ankdanalauyh•avuaucmdof aN.-IamlaYa.,I Api Ffl PL 13w&3 tffl Srem th.dlhuidan upwrum LyeL fq ¢idgm�prnndeag2 &e: aflirc..xw width. g m. n. �,, A.pswT mommcm csd Plirini nma(hc "M y, Ba1L �6v 2baVaM[s ,arkt bccmwcd ,. '. WI Mhk4 wim tlm upuacem ak{� mmsM + iRedn u,�ean n®w'ixm3NrteeaoaMyld 9e -.et fNC nQF1R4'I m-N3+enF:#mana7 ¢mfatawxM 1 .."r 11..c; dre +uainpga mk_ i 4b.13 J Z J 0 U Z� Z 2 z Lr) O N �OV Oji�: O Q Q Z V `Z Z U W � J W O ) / 1l � Date: 0 03-31-21 U) J s. m smle: Qa HORZ: 1 "= 400' 0 Z Drawn: LL<ZO Y 9W _ d Z Checked: z Q O cc !JW � Q - I cc � Project No: �F.yL U PRELIMINARY PLAN SEAL L-2876 = ••X JO�:• '� SUR`�.•' A. /1/Ill�t 110 DATE: 03-31-21 Sheet No: 2 Of 4 135 E 1 1 1 1 f 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 SECTION A A (TYPICAL) PIT CROSS SECTION HORIZ SCALE V = 50' TYPICAL HAUL ROAD X-SECTION (EXISTING) EXISTIN C/L Note: Metal stakes are minimum 4' long, 1.33 Ib/LF steel. MAXIMUM SPACING, SEE NARRATIVE COMPACTEDFILLOR / GRAVEL, EXTENSION OF FABRIC AND WIRE NOTE: INTO THE TRENCH SEE NARRATIVE FOR MORE DETAIL. ROUND 135 130 125 120 115 110 105 100 &IR m 85 F 70 4+50 EXTENSION OF BACKFILL FABRIC AND WIRE COMPACTED MINIMUM a, MINIMUM e- INTO THE TRENCHTHICK FILL F1 OF GRAVEL FWIRI WMINIMUM WIRE �� , �\\'/ \'/ V-TRENCH 8-MINIMUM 1 14•MINIMUM SECTION 4-MINIMUM SECTION ISOMETRIC VIEW SF SEDIMENT FENCE ( SILT FENCE ) NTS PRACTICE 6.62 7.. War pkgn Ga,tImfO 't is :q 4ry w 3Grsk n+na 5 � • � q , ,tlwF�.r Plpme YY Pa{Gea �m.aLLm Consfnw�F �. cre a..a..mwm�ss ir�w mmaa�roa.. Sweaoa>fona �'xa�w myuw'.i¢ar,�wsamun as �,.ws �- rcxcu+nvn✓s.�s.'+nwsa�.m.nwwn ecb+`:�-. a .nrwtv.mwnw�mwmrw+eam+ryrm una, u, a awacnxrm.ar.o-Mwww ae.�zn aw s sma namxk�+m.Mubp,dy u{+W pvdm pat¢ m. �en,:+y «soma.vn�.r+ro,..,•usw,rzamFu.r. 5.6$ttaH OVERFLOW SWALE TO BLEND IN' EXISTING GROUND SO WATER`FI SWALE CAN SHEET FLOW 50 FT PROPOSED OVERFLOW SWALE OVERFLOW SPILLWAY TO BE 3 FEET BELOW TOP OF BANK OF LAKE RIP RAP SPILLWAY PROTECTION POINT OF STORMWATER DISCHARGE *' 'Ksaart sna.e x., • �++x .aar�.. 4N ' bu uapp a¢vnu'dm ALLWdYa Jiratrii9ry Ae'aa srts%Mreuce Yvq WcJP na¢� sW fim wmuwr aloe bs1 W,m\AeA} aN�. C. xu�mm�a.®aq.xeav i�MBy Lbafb.Wena kmtlb amiiFa3 tlm�nw dw¢w dp. �� .'w zhtlpaadcihmaaw. rmu Nu%atlq 00000 o_ _■ ' PIT No. 1 SEDIMENT BASIN / BORROW AREA TO BE DEWATERED AREA (ACRES) CF PER ACRE REQUIRED TOTAL CF REQUIRED DISTURBED AREA DRAINING TO BASIN 4.04 3600 14544 AREA (SF) AREA @ ELEV.116 77020 AREA @ ELEV.80 36710 PROVIDED STORAGE 2047140 PIT No. 2 - SEDIMENT BASIN j BORROWAREATO BE DEWATERED AREA (ACRES) CF PER ACRE REQUIRED TOTAL CF REQUIRED DISTURBED AREA DRAINING TO BASIN 1.86 360D66% AREA (SF) AREA @ ELEV.116 18396 AREA @ ELEV. 95 5712 PROVIDED STORAGE 253134 TEMPORARY SEDIMENT TRAP #1 J DEWATERING PORTION OF BASIN DISTURBED AREA DRAING TO TRAP = < 5ACRES (DEWATERING AREA TO FUNCTION AS SEDIMENT BASIN) MIN. TRAP VOLUME = 1,800CF/ACRE OF DiSTURBEDAREA MIN. TRAP VOLUME _ - 9,000 cf SEDIMENT MUST BE REMOVED TWICE A YEAR MINIMUM WEIR LENGTH =12 FT. MAXIMUM DEPTH = 5 FT. MINIMUM SURFACE AREA = 4,500 AREA @ ELEVATION 118.5 (OUTLET ELEVATION) 10537 sf AREA @ ELEVATION 120 sf 2400 PROVIDED TRAP STORAGE 1 - 2400 cf AREA @ ELEV. 113, 5 (BOTTOM) % \ 5402 sf TOTAL PROVIDED STORAGE 62,307 cf � z J o U z� TZ < Z u >z is j� 2 J N W mull 7 2 a�Xq W 60°T LL zzz O �2 0 w j • 2 h N U U J Z LLJ z L pp� � Q C W J U Z U � CO No Y cr z 0 —'A V J p a Date: W o 03-31-21 mSple: Qa HORZ: 1 "— 50' Z D2wn: �Qz Y 9 W d z �A U: Checked 000, gW Q Project No: U PRELIMINARY PLAN �;•moo N,y._y SEAL L-2876 = i . C •'� sum••' %�FC /AJ.{H)NW, //11111�( III�VV`\ DATE: 03-31-21 Sheet No: 3 Of: 4 Construction Road Stnbi llzntlon Specification # 6.80 - Construction Specifications 1. Clear roadbed and parking areas of all vegetation, roots and other objectionable material. 2. Ensure that road construction follows the natural contours of the terrain If It Is possible, 3. Locate parking areas on naturally flat areas If they are available. Keep grades sufficient for drainage but generally not more than 2 to 3%. 4. Provide surface drainage, and divert excess runoff to stable areas by using water bars or turnouts (References, Runoff Control Measures). 5. Keep cuts and fills at 2,1 or Flatter for safety and stability and to facilitate establishment of vegetation and maintenance. 6. Spread a 6-Inch course of 'ABC' crushed stone evenly over the full width of the road and smooth to avoid depressions. 7. Where seepage areas or seasonally wet areas must be crossed, Install subsurface drains or geotextile fabric cloth before placing the crushed stone (Practice 6.81, Subsurface Drain), S. Vegetate all roadside ditches, cuts, flits and other disturbed areas or otherri se appropriately stabilize as soon as grading Is complete (References, Surface Stabilization). 9. Provide appropriate sediment control measures to prevent off -site sedimentation. Maintenance Inspect construction roads and parking areas periodically for condition of surface. Topdress with new gravel as needed. Check road ditches and other seeded areas for erosion and sedimentation after runoff -producing rains. Maintain all vegetation in a healthy, vigorous condition. Sediment -producing areas should be treated Immediately. Temoorary Gravel Construction Entrance/Exit Specification # 6.06 - Construction Specifications 1. Clear the entrance and exit area of all vegetation, roots and other objectionable material and properly grade it. 2. Place the gravel to the specific grade and dimensions shown on the plans and smooth It. 3. Provide drainage to carry water to a sediment trap or other suitable outlet. 4. Use geotextile fabrics because they improve stability of the foundation In Locations subject to seepage or high water table. Maintenance Maintain the gravel pad In a condition to prevent mud or sediment from leaving the construction site. This may require periodic topdressing with 2-Inch stone. After each rainfall, Inspect any structure used to trap sediment and clean It out as necessary. Immediately remove all objectionable materials spilled, washed, or tracked onto public roadways. Temporary Seedino Specification # 6.10 - Specifications Complete grading before preparing seedbeds and Install all necessary erosion control practices, such as dikes, waterways and basins. Minimize steep slopes because they make seedbed preparation difficult and Increase the erosion hazard. If soils become compacted during grading, loosen them to a depth of 6-8 Inches using a ripper, harrow, or chisel plow. Seedbed Preparation Good seedbed preparation is essentlal to successful plant establishment. A good seedbed Is well -pulverized, loose and uniform. Where hydroseeding methods ore used, the surface may be left with a more Irregular surface of large clods and stones. Liming - Apply time according to soil test recommendations. If the pH (acidity) of the soil Is not known, an application of ground agricultural limestone at the rate of 1 to 1 1/2 tons/acre on coarse -textured soils and 2-3 tons/acres on fine -textured soils Is usually sufficient. Apply limestone uniformly and Incorporate Into the top 4-6 Inches of soil. Soils with a pH of 6 or higher need not be limed. Fertilizer- Base application rates on soli tests. When these are not possible, apply a 10-10-10 grade fertilizer at 700-1,000 lb./acre. Both fertilizer and time should be Incorporated Into the top 4-6 Inches of Solt. If a hydraulic seeder Is used, do not mix seed and fertilizer more than 30 minutes before application. Surface roughening- If recent tillage operations have resulted In a loose surface, additional roughening may not be required except to break up large clods. If rainfall causes the surface to become sealed or crusted, loosen It just prior to seeding by disking, raking, harrowing, or other suitable methods, Groove or furrow slopes steeper than 311 on the contour before seeding (Practice 6103, Surface Roughening). Plant Selection Select an appropriate species or species mixture from Table 6.I0a, for seeding In late winter and early spring, Table 6.I0b for summer, and Table 6,10c for fall. Seeding Evenly apply seed using a cyclone seeder (broadcast), drill, cultlpacker seeder, or hydroseeder. Use seeding rates given In Table 6.10a-6.10c. Broadcast seeding and hyroseeding are appropriate for steep slopes where equipment cannot be driven. Hand broadcasting is not recommended because of the difficulty In achieving a uniform distribution, Small grains should be planted no more than 1 Inch deep, and grasses and legumes no more than 1/2 Inch. Broadcast seed must be covered by raking or chain dragging, and then lightly firmed with a roller or cultlpacker. Hydroseeded mixtures should Include a wood fiber (cellulose) mulch. Mulchlno The use of appropriate mulch will help ensure establishment under normal conditions and Is essential to seeding success under harsh site condition (Practice 6.14, Mulching>. Harsh site conditions Include, -seeding In fall for winter cover (wood fiber mulches are not considered adequate for this use), -s.lgpes steeper than 3 1, -excessively hot or dry weather, -adverse solls(shallow, rocky, or high In clay or sand), and -areas receiving concentrated flow. If the area to be mulched is subject to concentrated waterflow, as in channels, anchor mulch with netting (Practice 6.14, Mulching). Table 6.I0a - Temporary Seeding Recommendation for Late Winter and Early Spring Seeding mixture Species- Rye(graln), Annual lespedeza (Kobe In Piedmont and Coastal Plain Rate (lb/acre)- 120 Omit annual lespedeza when duration of temporary cover Is not to extend beyond June Seeding dates -Coastal Plain - Dec. I - Apr. 15. Soil amendments- Follow recommendations of Solt tests or apply 2,000 lb/acre ground agricultural limestone and 750 lb/acre 10-10-10 fertilizer. Mulch -Apply 4,000lb/acre straw. Anchor straw by tacking with asphalt, nett) ng or a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance - Refertlllze If growth Is not fully adequate. Reseed, refertillze and mulch immediately following erosion or other damage. Table 6.10b - Temporary Seeding Recommendations for Summer Seed Ing ml xture Spec Les -German millet Rate( lb/acre)- 40 Seeding dates -Coastal Plain- Apr. 15-Aug. 15 Soil amendments -Follow recommendations of soil tests or apply 2,000 lb/acre ground agricultural limestone and 750 lb/acre 10-10-10 fertilizer. Mulch -Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting or a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance-Refertlllze If growth Is not fully adequate. Reseed, refertillze and mulch immediately following erosion or other damage. Table 6, IOc - Temporary Seeding Recommendation for Fall Seeding mixture Spec Les-Rye(graIn) Rate(lb/acre) - 120 Seeding dates - Coastal Plain and Piedmont -Aug 15 - Dec. 30 Solt amendments - Follow Solt tests or apply 2,000 lb,/acre ground agriculture( t Inestone and 1, 000 lb/acre 10-10-10 fertI Llzer. Mulch- Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting, or a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance- Repair and refertillze damaged areas immediately. Topdress wl th 50 lb/acre of nitrogen In March, If it Is necessary to extend temporary cover beyond June 15, overseed with 50 lb/acre Kobe (Piedmont .and Coastal Plain) Permanent Seedlno Specifications # 6.11 - Specifications Seedbed Requirements Establishment of vegetation should not be attempted on sites that are unsuitable due to inappropriate soil texture (Table 6.I10, poor drainage, concentrated overland flow, or steepness of slope until measures have been taken to correct these problems. To maintain a good stand of vegetation, the Solt must meet certain minimum requirements as a growth medium. The existing soil should have these criteria, - Enough fine-grained (silt and clay) material to maintain adequate moisture and nutrient supply (available water capacity of at least .05 Inches water to l inch of Solt>. - Sufficient pore space to permit root penetration. - Sufficient depth of soli to provide an adequate root zone. The depth to rock or impermeable layers such as hardpans should be 12 Inches or more, except on slopes steeper than Bill where the addition of soil is not feasible. - A favorable pH range for plant growth, usually 6.0-6,5. - Freedom from large roots, branches, stones, large clods of earth, or trash of any kind, Clods and stones may be left on slopes steeper than 311 If they are to be hydroseeded. If any of the above criteria are not met-I.e., If the existing Solt is too coarse, dense, shallow or acidic to foster vegetation -special amendments are required. The Solt conditioners described below may be beneficial or, preferably, topsoil may be applied in accordance with Practice 6,04, Topsoiling. Solt Conditioners In order to improve the structure or drainage characteristics of a soil, the following material may be added. These amendments should only be necessary where soils have limitations that make them poor for plant growth or for fine turf establishment (see Chapter 3, Vegetative Considerations), Pent -Appropriate types are sphagnum moss peat, hypnun moss peat, reedsedge peat, or peat humus, all from fresh -water sources. Peat should be shredded and conditioned In storage plies for at least 6 months after excavation. Sand -clean and free of toxic materials Vermlculite-horticultural grade and free of toxic substances. Rotted manure -stable or cattle manure not containing undue amounts of straw or other bedding materials. Thoroughly rotted sawdust- free of stones and debris. Add 6 lb. Of nitrogen to each cubic yard. Sludge -Treated sewage and Industrial sludges are available in various forms, these should be used only in accordance with local, State and Federal regulations. Species Selection Use the key to Permanent Seeding Mixtures (Table 6.I1b) to select the most appropriate seeding mixture based on the general site and maintenance factors. A listing of species, including scientific names and characteristics, Is given In R�endix & GE, Seedbed Preparation Install necessary mechanical erosion and sedimentation control practices before seeding, and complete grading according to the approved plan. Lime and fertilizer needs should be determined by Solt tests. Solt testing Is performed free of charge by the North Carolina Department of Agriculture Solt testing laboratory. Directions, sample cartons, and Information sheets are available through county agricultural extension offices or from NCDA. Because the NCDA Solt testing lab requires 1-6 weeks for sample turn -around, sampling must be planned well In advance of final grading, Testing Is also done by commercial laboratories. When soli test are not available, follow rates suggested on the Individual specification sheet for the seeding mix chosen (Tables 6.I1c through 6.110. Applications rates usually fell Into the following ranges, - Ground agricultural limestone Light -textured, sandy Sol is) 1-1 1/2 tons/acre Heavy textured, clayey soils 2-3 tons/acre - Fertilizer, Grasses 800-1200 lb/acre of 10-10-10 (or the equivalent) Grass -legume mixtures, 800-1200 lb/acre of 5-10-10 (or the equivalent) Apply time and fertilizer evenly and Incorporate into the top 4-6 Inches of soil by disking or other suitable means. Operate machinery on the contour. When using a hydroseeder, apply time and fertilizer to a rough, loose surface. Roughen surfaces according to Practice 6.03, Surface Roughening. Complete seedbed preparation by breaking up large clods and raking into a smooth, uniform surface (slope less than 3,1) Fill In or level depressions than can collect water. Broadcast seed Into a freshly loosened seedbed that has not been sealed by rainfall. Table 6. Lis - Seeding No. 4CP for, Well-Dralned Sandy loans to Dry Sands, Coastal Plain) Low to Medium -Care Lawns Seeding mixture Species - Centipedegrass - Rate - 10-20 lb/acre (seed) or 33 bu/acre (sprigs) Seeding dates - Mar. - June, (Sprigging can be done through July where water Is available for irrigation.) Solt amendments - Apply lime and fertilizer according to Solt test, or apply 300 lb/acre 10-10-10. Sprigging - Plant sprigs In furrows with a tractor -drown transplanter, or broadcast by hand. Furrows should be 4-6 Inches deep and 2ft apart. Place sprigs about 2 ft. apart In the row with one end at or above ground level (Figure 6.11d). Broadcast at rates shown above, and press sprigs Into the top 1 1/2 Inches of Solt with a disk set straight so that sprigs are not brought back toward the surface. Mulch - Do not mulch Maintenance - Fertilize very sparingly- 20 lb/acre nitrogen In spring with no phosphorus. Centlpedegrass cannot tolerate high pH or excess fertilizer. Table 6. lit - Seeding Mo. 50P`fbr, Wet,-Dralned Sandy Looms to Dry Sands) Low Maintenance Seeding mixture Species Rate (lb/acre) Pensacola Bahlograss 50 Serlcea lespedeza 30 Common Bermudagrass 10 German millet 10 Seeding notes 1. Where a neat appearance Is desired, omit serlcea 2. Use common Bermudagrass only on isolated sites where It cannot become a pest. Bermudagrass may be replaced with 5 lb/acre centipedgrass. Seeding dates - Apr. 1 - July 15 Soil amendments - Apply time and fertilizer according to Solt tests, or apply 3,000 lb/acre ground agricultural limestone and 500 lb/acre 10-10-10 fertilizer. Mulch Apply 4,000 lb/acre grain straw or equivalent cover of another suitable mulch. Anchor by tacking with asphalt, roving and netting or by crimping with a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance - Refertlllze the following Apr. with 50 lb/acre nitrogen. Repeat as growth requires. May be moved only once a year. Where a neat appearance Is desired, omit serlcea and now as often as needed. Table 6.11v - Seeding No. 7CP for, Grass -lined Channels) Coastal Plain Seeding Mixture Species - Common Bermudegrass - Rate - 40-80 (1/2 lb/1,000 ft ) Seeding dates - Coastal Plaint Apr - July Soil amendments - Apply lime and fertilizer according to Solt tests, or apply 3,000 lb/acre ground agricultural limestone and 500 lb/acre 10-10-10 fertilizer. Mulch - Use Jute, excelsior matting, or other effective channel lining material to cover the bottom of channels and ditches. The lining should extend above the highest calculated depth of flow. On channel side slopes above this height, and In drainages not requiring temporary linings, apply 4,000 lb/acre grain straw and anchor straw by stapling netting over the top, Mulch and anchoring materials must be allowed to wash down slopes where they can clog drainage devices. Maintenance -A minimum of 3 weeks Is required for establishment. Inspect and repair mulch frequently. Refertlllze the following Apr. with 50 lb/acre nitrogen. Refer to Appendix 8.02 for botanical names Grass -Lined Channels Spec if l cot l on # 6.30 - Construct l on Specifications 1. Remove all trees, brush, stumps, and other obj ectI onab le meter l al from the foundation area and dispose of properly. 2. Excavate the channel and shape It to neat lines and dimensions shown on the plans plus a 0.2 ft overcut around the channel per l meter to allow for bulk Ing dur l ng seedbed preparatI ons and sod but Loup. 3. Remove and properly dispose of all excess soil so that surface water may enter the channel freely. 4. The procedure used to establish gross In the channel will depend upon the severity of the conditions and selection of species. Protect the channel with mulch or a temporary liner sufficient to withstand anticipated velocities during the establishment period (Appendix 8.05). Maintenance Dur l ng the estab I.Ishment per l ad, check grass-1 Ined channels after every rainfall, After grass Is estab l Ished, per l oci l cal Ly check the channel) check It after every heavy rat nfaII event. Imined late ly make repaI rs. It Is particularly Important to check the channel outlet and all road cross l ngs For bank stab l Ity and evidence of piping or scour holes. Remove all sign if l cant sedI ment accumulations to maintain the designed carrying capacity. Keep the grass In a health, vigorous condition at all times, since it is the primary erosion protection for the channel (Practice 6. 11, Permanent Seeding). Ilutlet Stnbl llzntlon Structure Specification # 6.41 - Construction Specifications 1. Ensure that the subgrade for the filter and riprap follows the required lines and grades shown In the plan. Compact any fill requI red In the subgrade to the density of the surrounding undisturbed material. Low areas In the subgrade on undisturbed soli may also be fl t led by Increasing the rl prep thickness. 2. The rl prep and gravel fl Iter must conform to the spec if led grading IImi is shown on the plans. 3. Filter cloth, when used, must meet design requirements and be properly protected from punching or tearing during Installatlon, Repair any damage by removing the riprap and placing another piece of filter cloth over the damaged area. All connecting Joints should overlap a minimum of I. ft, If the damage Is extensive, replace the entire filter cloth. 4. Riprap may be placed by equipment, but take care to avoid damaging the filter. 5. The minimum thickness of the riprap should be 1. 5 times the maximum stone diameter. 6. Riprap may be field stone or rough quarry stone. It should be hard, angular, highly weather -resistant and well graded. 6.. Constructthe apronnn, zero. grrade wAith. na, ovenfml--I, at, the and. Make- the txia of the riprap at the downstream end level with the receiving area or slightly below It. 8. Ensure that the apron Is properly aligned with the receiving stream and preferably straight throughout Its length. If a curve Is needed to fit site conditions, place It In the upper section of the apron. 9. Immediately after construction, stab) llze all disturbed areas with vegetation (Practice 6. 10, Temporary Seeding, and 6. 11, Permanent Seeding). Maintenance Inspect riprap outlet structures after heavy rains to see If any erosion around or below the riprap has taken place or If stones have been dislodged. Immediately make all needed repairs to prevent further damage. Land Gradino Specification # 6.02 - Construction Specifications 1. Construct and maintain all erosion and sedimentation control practices and measures In accordance with the approved sedimentation control plan and construction schedule. 2. Remove good topsoll from areas to be graded and fl I. led, and preserve It for use in finishing the grading of all critical areas, 3. Scarify areas to be topsol led to a minimum depth of 2 inches before placing topsoll (PractI ce 6. 04, TopsoI I. l ng). 4. Clear and grub areas to be ft (led to remove trees, vegetation, roots, or other objectionable material that would affect the planned stability of the ft Lt. 5. Ensure that ft It material Is free of brush, rubbish, rocks, logs, stumps, bul lding debris, and other materials Inappropriate for constructing stable fills. 6. Place all fl 11 In layers not to exceed 9 Inches In the ckness, and compact the layers as required to reduce erosion, slippage, settlement, or other related problems. 7. ])a not Incorporate frozen meter l al or soft, mucky, or highly compress l b le materials Into flit slopes. B.Do not place FILL on a frozen foundation, due to possible subsidence and slippage. 9. Keep diversions and other water conveyance measures free of sediment during all phases of development. 10. Handle seeps or springs encountered during construction In accordance with approved methods (Practice 6. 81, Subsurface Drain). 11. Permanently stab) llze all graded areas Immediately after final grading Is completed on each area In the grading plan. Apply temporary stab[ llzatlon measures on all graded areas when work Is to be Interrupted or delayed for 30 working days or longer. 12. Ensure that topsoll stockpI Les, borrow areas, and spoil areas are adequately protected from erosI on with temporary and fl no stab I I. l zatIon measures, Inc I.udIng sediment fencing and temporary seeding as necessary. Maintenance Per l ode cal I check all graded areas and the support l ng erosion and sedI mentatIon control practices, especially after heavy rainfalls. Promptly remove all sediment from diversions and other water -disposal practices. If washouts or breaks occur, repair them immediately. Prompt maintenance of small eroded areas ,Se1'bna, --;}ley, diet� s yxi'lr,leumt gut zz s are essenittl�a 1 part air awn 8*+%M -IVW erosion and sedimentation control plan. STABILIZATI❑N TIME FRAMES: SITE AREA DESCRIPTION Perimeter dikes, swales, ditches and slopes High Quality Water (HQW) Zones Slopes steeper than 311 Slopes 3i1 or flatter All other areas with slopes flatter than 411 NOTE WELL, STABILIZATION 7 DAYS 7 DAYS 7 DAYS 14 DAYS 14 DAYS ANY AREAS ON -SITE WITHOUT ACTIVITY SHALL BE STABILIZED WITHIN 15 WURKING DAYS AND AS ABOVE, ALL SLOPES MUST BE STABILIZED WITHIN 21 CALENDAR DAYS OF CEASE OF ANY ACTIVITY, Sediment Fence (Slit Fence) Specification 6.62 -Construction Specifications MATERIALS I.Use a synthetic filter fabric or a pervious sheet of polypropylene, nylon, polyester, or polyethylene yarn, which is certified by the manufacturer or supp I.ter as conform I ng to the requirements shown In Table 6. 62b. Synthetic filter fabric should contain ultraviolet ray inhibitors and stabilizers to provide a minimum of 6 months of expected usable construction life at a temperature range of 0 to 120 F. 2, Ensure that posts for sediment fences are either 4-Inch dl ameter pl me, 2-Inch diameter oak, or 1.33 lb/linear ft steel with a minimum length of 4 ft. Make sure that steel posts have projections to facilitate fastening the fabric 3. For reinforcement of standard strength filter fabric, use wire fence with a minimum 14 gauge and a maximum mesh spacing of 6 Inches. Table 6.62b Specifications For Sediment Fence Fabric Physical Property Requirements Filtering Efficiency - 85% (mm) Tense le Strength at Standard Strength- 30 lb/lln In (min) Extra Strength- 50 lb/Lin in (mm) Slurry Flow Rate - 0.3 gal/sq ft/min (min) CONSTRUCTION 1, Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics. 2. Ensure that the height of the sediment fence does not exceed le Inches above the ground surface. (Higher fences may Impound volumes of water sufficient to cause failure of the structure.) 3. Construct the fl I.ter fabr lc from a cont I nuous roll cut to the length of the barrier to avoid Joints. When Joints are necessary, securely fasten the filter cloth only at a support post with overlap to the next post. 4, Support standard strength filter fabric by wire mesh fastened securely to the up slope side of the posts using heavy duty wire staples at least 1 Inch long, or tie wires. Extend the wire mesh support to the bottom of the trench. 5, When a were mesh support fence Is used, space posts a max l mum of 8 ft apart. Support posts should be driven securely Into the ground to a minimum of 18 inches. 6. Extra strength fi,ter fabr lc with 6ft post spec Ing does not require were mesh support fence, Staple or were the fl I.ter fabr lc directly to posts. 7, Excavate a trench approximately 4 Inches wide and 8 Inches deep along the proposed line of posts and ups I. ape from the barr ter (f Igure 6. 62a). 8, Backflll the trench with compacted Solt or gravel placed over the filter fabr I c. 9. Do not attach filter fabric to existing trees. Maintenance Inspect sediment fences at least once a week and after each rainfall. Make any required repairs Immediately. Should the fabric of a sediment fence collapse, tear, decompose or become ineffective, replace it promptly. Replace burlap every 60 days. Remove sediment deposits as necessary to provide adequate storage volume for the next m.i, and to reduce pressure on 'tlhefiience. TNik care to avoid unoerninirg the fence during cteanout. 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. Sediment-Basin.W/ Rock Dan (see additional not Spec if l cot Ions # 6.63 - Construct l on Spec if l cat l ons 1. SIte preparations -Clear, grub and strip topsoil from areas under the embankment to remove trees, vegetation, roots and other objectionable material. Delay clearing the pool area until the dam Is complete and then remove brush, trees and other objectionable materials to facilitate sediment cteanout. Stockpile all topsoll or soil containing organic matter for use on the outer shell of the embankment to facilitate vegetative establishment. Place temporary sediment control measures below the basin as needed. 2. Cut-off trench -Excavate a cut-off trench along the center I.Ine of the earth fl 11 embankment. Cut the trench to stable soli meter l a 1, but In no case make it less than 2 ft. deep. The cut-off trench must extend Into both abutments to at least the elevation of the riser crest. Make the minimum bottom width wide enough to permit operation of excavation and compaction equipment but In no case less than 2 ft. Make side slopes of the trench no steeper than 1i 1. Compaction requirements are the same as those for the embankment. Keep the trench dry dur Ing backfIt Ling and compact l on operat Ions. 3. Embankment -Take fl I. I. meter l al from the approved areas shown on the plans. It should be clean mineral sot 1, free of roots, woody vegetate on, rocks and other objectionable material. Scarify areas on which fill Is be placed before placing f Ill. The fl 11 meter Ial must carte In suff ICIent mot sture so It can be formed by hand Into a ball without crumb I. Ing. If water can be squeezed out of the ball, It Is too wet for proper compaction. Place ft 11 material in 6 to 8-Inch continuous layers over the entire length of the flit area and then compact It. Compaction may be obtained by routing the construction hauling equipment over the fl 11 so that the entI re surface of each layer Is traversed by at least one wheel or tread track of the heavy equipment, or a compactor may be used. Construct the embankment to an elevation 10% higher than the design height to allow for settling. 4. Conduit spl Itways-Securely attach the riser to the barrel or barrel stub to make a watertight structural connection. Secure all connections between barrel sections by approved watertight assemblies. Place the barrel and riser on a: firm, smooth foundation of impervious Solt. Do not use pervious material such as sand, gravel, or crushed stone as backf I t L around the pipe or ant l-seep collars. Place the flit 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 be taken not to rat se the pl pe from firm contact with its foundation when compacting under the pipe haunches. Place n ml nl mum depth of 2ft. of hand -compacted backfl(l over the pipe spl l I.way before crossing It with construction equipment. Anchor the riser In place by concrete or other satisfactory means to prevent flotation. In no case should the pipe conduit be Installed by cutting a trench through the dam after the embankment Is complete, 5.Emergency spillway -Install the emergency spillway In undisturbed Solt. The achievement of planned elevations, grade, design width, and entrance and exit channel slopes are critical to the successful operation of emergency spillway, 6. Inlets -Discharge water Into the basin in a manner to prevent erosion. Use diversions with outlet protection to divert sediment -laden water to the upper end of the pool area to improve basin trap efficiency (References- Runoff Control Measures and Outlet Protection). 7.Eroslon 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 emergency spillway embankment and all other disturbed areas above the crest of the principal spillway immediately after construction (References, Surface Stabilization). S.Safety-Sediment basins may attract children and can be dangerous. Avoid steep side slopes, and fence and mark basins with warning signs If trespassing Is likely. Follow all state and local requirements. Maintenance Check sediment basins after periods of significant runoff. Remove sediment and restore the basin to its original dimensions when sediment accumulates to one- half the design depth. Check the embankment, spillways, and outlet for erosion damage, and Inspect the embankment for piping and settlement. Make all necessary repairs Immedlately. Remove all trash and other debris from the riser and pool area. NOTE WELL: EROSION CONTROL DETAILS AND SPECIFICATIONS AREAS PER THE "EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL" OF THE STATE OF NORTH CAROLINA, DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES, LATEST EDITION. PRACTICE NUMBERS REFER TO THIS MANUAL. CONTRACTOR IS RESPONSIBLE FOR MAINTAINING A COPY OF THIS MANUAL ON -SITE AND ENSURING THAT ALL SUPERVISORS ARE FAMILIAR WITH THE STANDARDS AND SPECIFICATIONS SHOWN IN THE MANUAL AND ON THE PLAN. NOTE: DETAILS SHOWN ARE TYPICAL OF INSTALLATIONS REQUIRED BY COLUMBUS COUNTY. THIS SHEET DOES NOT PURPORT TO SHOW ALL REQUIRED CONSTRUCTION DETAILS, BUT RATHER SERVES AS A GUIDE. THE CONTRACTOR IS RESPONSIBLE FOR ADHERING TO ALL COUTY AND STATE CODES AND CONSTRUCTION STANDARDS. Temnorary Sediment Trnn - continued Protection from piping - Place filter cloth on the foundation below the riprap to prevent piping. An alternative would be to excavate a keyway trench across the riprap foundation and up the sides to the height of the dam. Weir length and depth - Keep the spillway weir at least 4 ft long and sized to pass the peak discharge of the l0-yr storm. A maximum flow depth of 1 ft, a minimum freeboard of 0.5 ft, and maximum side slopes of 2,1 are recommended, Weir length may be selected from Table 6.60a shown for most site locations in North Carolina. Table 6, 60a Design of Spillways Drainage Area Weir Length(1) (acres) (ft) 1 4. 0 2 6.0 3 8. 0 4 10.0 5 12.0 (1) DI menslons shown are minimum Construction Specifications 1. Clear, grub, and strip the area under the embankment of all vegetate on and root mat. Remove all surface Solt containing high amounts of organic matter and stockpile or dispose of It properly. Haul all objectionable material to the designated disposal area. 2. Ensure that flit material for the embankment Is free of roots, woody vegetation, organic matter, and other objectionable material. Place the flit In Lifts not to exceed 9 inches and machine compact it. Over flit the embankment 6 Inches to allow for settlement. 3. Construct the outlet section In the embankment. Protect the connection between the riprap and the soil from pip] ng by usl ng filter fabric or a keyway cutoff trench between the riprap structure and the Solt. (Place the fitter fabric between the riprap and Solt. Extend the fabric across the spillway foundation and sides to the top of the dam) or (Excavate a keyway trench along the centerline of the spillway foundation extending up the sides to the height of the dam. The trench should be at least 2 ft deep and 2 ft wl de wl th DI side slopes. 4. Clear the pond area below the elevation of the crest of the spillway to fact litate sediment cteanout 5. All cut and flit slopes should be 2-1 or flatter. 6. Ensure that the stone (drainage) section of the embankment has a minimum bottom width of 3 ft and maximum side slopes of Is that extend to the bottom of the spillway section. 7. Construct the In nl mum fl In l shed stone spl l Iway bottom width, as shown on the plans, with 2,1 side slopes extend Ing to the top of the over fl l led embankment Keep the thickness of the sides of the spl llway outlet structure ate minimum of 2l Inches. The weir must be level and constructed to grade to assure design capacity. S. Material used In the stone section should be a well -graded mixture of stone with a d50 size of 9 Inches (class B erosion control stone Is recommended) and a maximum stone size of 14 Inches. The stone may be machine placed and the smaller stones worked Into the voids of the larger stones. The stone should be hard, angular, and highly weather-reslstant. 9, Ensure that the stone spillway outlet section extends downstream past the toe of the embankment until stable conditions are reached and outlet velocity Is acceptable for the receiving stream. Keep the edges of the stone outlet section flush with the surrounding ground and shape the center to confine the outflow stream (References, Outlet Protectl on). 10. Direct emergency bypass to natural, stable areas. Locate bypass outlets so that flow will not damage the embankment. 11. Stabilize the embankment and all disturbed areas above the sediment pool and downstream from the trap Immediately after construction (References, Surface Stabilization). 12. Show the distance from the top of the spillway to the sediment cleanout Level (one-half the design depth) on the plans and mark It In the field. Maintenance Inspect temporary sediment traps after each per lotl of significant rainfall. Remove sediment and restore the trap to Its original dimensions when the sediment has accumulated to one-half the design depth of the trap. Place the sediment that Is removed In the designated disposal area and replace the contaminated part of the gravel facing. Check the structure for damage from erosion or piping, Periodically check the depth of the spillway to ensure It Is a minimum of 1.5 ft below the low point of the embankment. Immediately fill any settlement of the embankment to slightly above design grade. Any riprap displaced from the spillway must be replaced Immedlately. After all sed l ment-produc l ng areas have been permanently stab 1, zed, remove the structure and all unstable sedl ment. Smooth the area to blend wl th the adja InIng areas and stabilize properly (References, Surface Stabilization). PRELIMINARY PLAN MINING PLAN FOR DONALD SMITH ROSINDALE SAND, LLC CARVERS CREEK TOWNSHIP, BLADEN COUNTY, NORTH CAROLINA REV. NO. REVISIONS DATE C-gVhtc(we,wveroev SeM[es.P.a,All,igh5reserver!. Repod,-wusaotme[ f.b Nlhisdocu, "aeE, paelelia,so Nix tlo.t,,Nwl dM.rt MtlwulwlRtnmescal&..Swveywo,E,iN.,,5PM...C*cOp hen Neollpl.lo/NISJwumen{ mmM wi MemyrvwlsgwWree orvniswlof Ne Surveyu Ewinmr,sl#tl mns�reCobvamaw6 rappz ``\,,(\ICAll 1O/''/// .Z ��, a _-*:isslp .�4/ ,� SEAL L-2876 1 OR_ "9� y 11 0 Sul? .•,, ke , Q" • Fy��° '/'/0//I AI11N� 1`l\v Cam/ Q& - DATE: 03-32-215-03-18 OWNER: ROSINDALE SAND, LLC 1402 CANAL COVE ROAD LAKE WACCAMAW, N.C. 28450 HANOVER DESIGN SERVICES, P.A. LAND SURVEYORS, ENGINEERS & LAND PL NNERS 1123 FLORAL PARKWAY WILGTON. N.C. PHONE: 34 : (910) 3800202 Date: 03-31-21 Scele: 1 "=100' Dmwn: GA W Checked: GA W Project No: 15623 d' L(Lu�i° IED JUN 0 7 1021 LAND QUALITY MINING PROGRAM