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HomeMy WebLinkAbout20240917_Mine_Maps Mining Expansion Construction Sequence / ' FILTER 57OF 1 INCH DIAMETER 0 �- T �`57 WASHED STONE 1. Obtain DEMLR Mining Permit and all applicable permits for construction. / 3E 2. Clear only necessary areas to allow for the installation of the approved erosion control measures. ' SILT FABRIC TO OVERLAP HARDWARE CLOTH!BY 12 INCHES ",\nee 3. Once erosion control measures are installed seed and stabilize the installed erosion control measures. STEEL FENCE POST -\ry°° 4. Clearing and grubbing of work area can begin. Work areas cleared must be within the installed CLO 29,NA erosion control measure drainage areas. � I 1 WIRE FENCE SILT FENCE FABRIC HARDWARE FENCE STEEL FENCE POST ON WIRE FENCE ON wRE FENCE HARDWA CLOTH N 5. Maintenance of erosion control measures(ie.silt fence,diversion structures,check dams,sediment \ F 1 INCH DIAMETER PLAN VIEW basins,etc.)must be completed at regular intervals. Accumulated sediment in the installed basins I \ FILTER OF 1 INCH DIAMCTER Site g 57 WASHED STONE i when the storage volume is half-full. 1 j FLOW DIRECTION I 18" 6. Any development occurring where the stormwater runoff can be directed to the existing pit does \ aRADE STEEL FEN°E P_ SET �0 not have to have sediment control basins installed. The existing pit is used for treatment of runoff. (_ HARDWARE CLOTH MAXIMUM 2 FEET APART WIRE FENCE 6. re(��°� 7. Once the contributing areas have been stabilized the erosion control measures can be removed and SIDE VIEW .. st° the areas graded and stabilized. I I \ I �1 ` \ SILT FENCE i0 v° FABRIC _ OVER °`�� On 1 ' 12 d 3� / \ 12 - INCHES e./ Z (// PTA I INCHES___ -_ 11 __T a GRADE Qo �� �, 17_ _�; _ IF / PS NC I LP I ' ` / No Scale I / BURY WIRE FENCE,HARDWARE CLOTNTO (-BONY VIEW AND SILT FENCE FABRIC 6 INCHES INTO I THE TRENCH Vicinity Map � I I \ ` , Silt Fence Outlet Detail � II \'11,� CHR VIII-PCP \ MHC Charlotte I I ( \ \ �% \\� Queens LLC Z - _ � / 'I / / cz� ' !`�' \ �i „� _ / \/ / \ / �/ r / / `� \ - / , �/ ( \ �( , / / / /' ) J / / ' I <rn f /' /= / TYPICAL BERM CROSS SECTION / - / /// ''/ / /� / ` ���/ \/ \ / \ ` / / / I 1 \� � 50'-0„ 15` p" 50' 0„ 20• 0„ 50'-0" 15' 0" 50' 0„ / ]' ! j /; - 4 , _=% /� '� / _ � ! b � � TO PIT - '\ � A l �� / �� \ / \ J ! l i r T �.,, 4 2 PHASE 3 1 _ \1 I 1 ' \ \-_� '� l / / I� /f ''\ \' \ \ ti PHASE 2 PHASE 1 1 \, / I- __ 1 ,k -- - - - � / � I ) I j' r,'I Existing AsphaL�� _ _' - \ \� 11 i _ �� / � I I I I � I Lease Area - c � \ �„ ff( b� 250'-0„ � / \ - -- ---� ) � `t Future Parts Supply/ ~ z, \ (' 1 I Storage Area \ \ \11 Notes: 1' 1)Slopes will be tracked during construction to aid in the establishment of vegetative cover. \ \ 2)All exposed areas Twill be stabilized following construction J > ` , \ \ \ \.,\ \� i \ \ ✓� 3)See Seeding Schedule for proper stabilization plantings. 1.\ \\\ t( 4)All berms will be evaluated for the need of slope drains during stabilization.(NCDEQ ESCDM Std.6.32) l \' Mecklenburg / _' Stella / ' s9)_ \ \ - �,_ / county -� /' / -\- 5 _x=� ` \ N\ ) \ Alexander Mallard Creek _ - --- ' X -_ - \ �� \�\ ��_ \ �I \ 11 ($„ x) Harman Et Al. - #M' _�=�Sll �� --^ -•-J _ INTERMEDIATE WIRES 1� // \��_ _ _ v v, \ > ,�- .io--- -�"- Buffer _ ;/ LINE WIRE -\ MIN 10 GA.- T �• _ I MIN.12 1 2 6A �- --- � _tiiiiip� "- � -- - r -rl`--- j Undisturbed Stream -, 1 _. '//i/':� -- I ;� Cr - `_ ---:UT-- -- - - - - - ,,� - -r��- Buffer _. __-- _-, h - - _ t- _ - _ � \ \ 77 � � - � f � \ \ �� .��� '.� _ 7 - - - W j \ -, /- _/ / Overhead `/ / \ \ \ o s .. - - - R/ , - - __s.--�--' !'...- 7"� ErieY \ FEMA - / - / 'k STEEL POST ( uk ,__, - Powerlines , �� s-- / e (/ __-- _"�" _ -_- _ - _ - �i/� \......... _ \ �� Ir �'�' ..;`' / �_ ��,�. \\-•�\ l -� _ - - / -' 1 \ FILTER FABRIC �� __ f _ _ �� _ r r _�� - - �. \ \� --� - -__-._ _ ---__ --- - `JL��/ \� i yi - Opp y \( i rry _ - _- I -- � L - l \ V / GOl1 GG �� \ u, i-- - �� 1 �� /_ -- - - r o �1Y 1 ., o \ ij r y-_=___ _ _ / _-�\ �� \. � � -G1(IT,�__,,�\ �-���� �\ \ Existing \ \ _ / =_ -----r-- ✓ J \ I_ ,% _ �:.= �� \\ Berm J / N - c 1 \ v � \ \ ;;,<-e ____ -- ✓ - s \- - / <- r,\ _ _ Existing I ' __ ' -- -- / ►. Monitoring - ��,-5�0�� , ��' �r - -i \ I - - - - t \- ' 1 \ - , _ _ Berm o ,\ ~ \, o - -- - ? f o \ - � - - __ R Well#1 -- \ �" \ -= �r - _- :_-. - � �ANCHOR SKIRT MIN. �_ "� - - (J ` \ ,I/F' , �•" . . �\. --� 7- ( J - �, �\ win 4„MIN. - _ �� - 1 i / /-it I /� '�-1 � , � ti9 �/ V - / - -� �\ \\T��'/ ' ,�\I)_ � �� \ \ \v STANDARD SILT FENCE \ Na _-_ - - - J.... -� =- - - ', I \ \ � �' / ' -_ - __�:-' r%- L �b1 - ��\ I � \J/ -I NCSECDM STD.6.20 C /' � / � Stockpiles ,'� P I \ --� \ \ - � - - ____► % L�--�-'-- " , , -_ j �( _�; -Z -.� - - �� Stockpiles /�/ , Clarification \ `r11 koN - _�c10 �\ �' - �� �_�� /--!' _G20 v �-� I A'�I i f/ �r� �_ K i - /� \ /y \�-: \� \ \� \ �. iI Pond -_ zo /� Double Row Silt r - / _> > \ I / \ �j = Fence with Silt \ Ito �• I - �� 1 j \ / _ ; r� �% �, � ,,,`„4J ` 1�^ / \ \ * 1 min.NCDOT#5 or 5' / / �.�•"`.. L , 'n Stockpilers I/� !%' / ..; J �J /f �� / _ \\ \ _._ 1 -- ! \ \ ® #5 Washed Stone Class 1 d -- �:.� ' f /- Fence Outlets !� 1 A f ,/ / �'fi �� ~•` --_\ __ ` _.r-- _-'� \ ,f\ \ I \\. \ SA �, \ 2 ,,-,,t, Rip Pop --- / /// I _ \\\ 'y// i To Elevation of stormwater-Weir Elevation _ f ,- _t\• 1 I / /1--/ ! o 1 \. �. -__ .�.� �^'is 6'Min I ' ✓f // / / I' \ \\ - \I�� ) (>111 \\ r .! L\ �$� \L' \ 7 �� <\ / ' \ - --Oullall 01 `G� \ F'aw meat 4 g J J6 I i _ / zf �� .` / \ \,� Sedi ti\ Min 1.5' ' �1.= -- I \- /r- _ L� _ Clean Out Elevation r. I <. �i 1 `., % `i /_. `�`� \ / �/ ^-\ \ .. �-_. �` \�\ \ i:\ thick a non < -_ _ s.i f --_- I �:. \�,- .ti -._` �j /L, _ .: _y.., �� G 10'Min. I 1'. l / _ --1 \. Ex►stin Processin Plant i ��- -- -- / �� �- \ ! ,, - ` { \ / / / i-F-I ' / f / "1 `` I'-_I. \ 11 ll `J I g g \\ �� -` \ \ 'l1 ,, r i- �- - A_ �/f �� �� -��_ .1 A \\\ G, Key in Bottom I _ o -�� Proposed'- Employee � =, - /_ / \ ' and Stockpile Area �� ,`h. -s v. i 1 \ y /j �t i Building&Containment Area ►-� �� / /�. v�i vv �-�% it Y O vti v,1 J J �� y �� I� \ A Layer of Rip Rap l , \ ^ 71' { / ` \/ ` ) �" ► Stock iles \ �� ,\ `�J Stockpiles \) f ( /-i --- -- \1- Carry Ri-Rap up �- ' _ \ 1 ll / T I / _ J \ -,.�\ \` \ \� 'des ofps Spillway 1 ,� O / '__ / � �! , ��\ \ " ' \ � r'/{' !' , \ __-_ f/ ! / _. ,, �-,1� ` \ ` ��, 10'Min. 3'Min. I \ \ f / / \ I( f J \ I �1 \ /. % `/% // ^✓�\\ \ ,_J. I !/ �� L -� "�� �f_" _ L'\ ' ����( , ���\ t �`\�� \ \ 2'Min. Class 1 A 2 Rip-Rap `� \ I / l �,I / / \ \ ' /� (/ 1 t �� /�// ` - _ ` ^1���. J. i�... '_` :, (i-iOe` �ya \'� - \` �1 �\r. \ (I \'`._ \\ -�1- .�,y\ \- NCDOT#5 or '/ 1.'_\ �, / 1 I ! / J - (\L.. / \ �ii // �__ 6>10' -_ ` _-_// --� \ / .__✓ \\' \\�i\. 1 �`� (` �•"'.''`� , ( K� �\ \\ J� \ #5 Was Stone / r ' �� _ A \\\\\ ' � �,V 10 �. �� �� / / .ram. �°' �T� I - / i�� I✓ /� �• " t( `v �-- - �A� A�• \� ��� S /����\ � �`\ ,r - / J;. 1 r ' 1 ✓/ y I \ ~ • Stockpiles i 1 / -�f \\\ �� Spillway Detail 1 (10 J / � ..ems .n.... I __' 1, .y, . / `, `v // ; �__-' rj,,, /A/, ,-1-/ ' �\�V � ' �•�5 �'� � / J L n.y. '�� / l `/ ` \ 1� \\ ((( l� \ `\ \ ; / /I/'� !\) ��__-- �l\� O \ SEDIMENT BASIN WITH ROCK DAM -� �� . . ��� �' v ♦ vWN \\ - �L'\ \\ / � If'___1 /��T ��9 w\ 11�� 1�� �(\ NCSECDM STD.6.63 I I I I ! �� �� ! �► /-1 `\\ �i �` I", / � /~� 1/ �� I\ � \' \ / v\ SEEDING SCHEDULE FOR ALL GRASSED AREAS 0016- / 'Z / Existing . - / f / �, \� \ ( � Undisturbed Stream sting \ - / lr vv Stockpiles �� ���� f �--- 4 / �. . State of NC � '� _' ,_ / 1 50 "I /, Berm _j I P / vo�� , ' � ` / Buffer / ! i ( (�� [' \ ! / `` i \ `Q v (_ /�Gr r// y �i11` V �� ✓ \ \�\ SEEDBED PREPARATION NOTES: / / �,',- t Existing ( �,�'J v� _�/ / r ��f' \/ I I 1/ 1 \ /1-1 :X i�X/ � \Freshwater Porid ) `\11, \ � �C�N L / / _/0' j /`) / � \�\ `\ �\ ``;- I \ 1) Surface water measures are to be installed according to plan. I ��o ( . \ Ih\ ` \ 2) Areas to be seeded shall be ripped and spread with topsoil(If necessary),3 ) I )I , \ Proposed Customer �� ^� ,\ r \ \ �- % � f /�f f / \ � U k \\ \ \ \\ V.- ' I ✓ Truck Staging Area 1 \\ )) ') \' \ r C'�_ i �' ✓ / / � ') V ",>- '' \ deep. Total seedbed prepared shall be 4"-6"deep. ' g g �� v A � % //�� ,///, / / / \\ \ )� 1))()�o ,y� \ 1 \ \ I � \ �'h'vv' \ �` ,� �� �� /�� ;.�v> � �vA I '� ) _ 3) Loose rocks,roots,and other obstructions shall be removed from the surface �/0 \ -�� / i \ , '� _ '�i � ��. I \ so as not to interfere with the establishment and maintenance of vegetation. / - �, r / \ 1 J \/ �; / / � ,_` � 41 1 � Surface for final seedbed preparation,at final grades shown,shall be reasonably L • v /,. i ��� \ t �, v ----7 %- , �1,1 �/ �, 1 VA 1 / 07 ;/ -�.� / "/ \ y \ \t� \ ) _ smooth and uniform. �, � \� f 1 \_ ,r - / V G 1 \ y ��. l s 1 ���� - _ Existing ) / h J j i \�'? I I \\ 4) If no soil best Is taken, provide fertilizer and lime according to seeding \ <, ������,,. -650 /_ Setthri Cell \ �/. ` �v -� " �(� ��'�� - i I �� n y EX1Stirig schedule. In mddition provide 15 Ib./1000 sq.ft.of super phosphate. �� ' / i \(� g /.f / A !v �� � r �rrr'� �y� !. f I ' �h\ Berm , !� � % \ r 1 r I,� t, e ,� ,�- fir I L \ ( /' / _- \ l\. j \ j /� 1 �� j, L / l )f 1 5) If soil test is taken,provide fertilizer and lime according to the soil test / -�� // Buffez � J 1111 \ - / C 1report. _ , _ _ �.-I / " � A� �� / I ����� // �,� �' /� �A Soil testing is recommended. - - o III 1 \ <,-1) '�/-/ ✓ \ _ i uniformly d mixed h the soil dun `�/� l f ' j!`., i �, �� J I ` 1 n with / �„� -�6G0 \ ( J a ( � L � / f_ �d�- % 6) Lime and fertilizer shall be applied un fo mly a m during "V ff, -- �� ��u �' l �� _ 1� / �; G v J(,t �i.'^ ,f - V� seedbed preparation. �\ / / i� \\ 1 \ / ,���-_\ �\ Y �i�� � \ij \ \ 7) WATER alll seeded areas and keep moist until new grass is established. \ �' f l �� ( \ \ / - i Existing / �� �\� ) �/ ��r \.�� ' \A � l /� I _ - \ 1' �� �� Settling Cell �� \� � / /' 1IN \ \ `\ ) `� �f s�� 1 ✓R / - /. , ) / -- o �,, ' e I 11 ;� ' r 1 \ \ 1 ` Temporary Seeding Schedule /� l \ �\ /j, l /'����� 1 4�£' r' _ - , zo tN v � 1 / / \ )\' �vr �, � fl��;� / I i/ /� \ \ mpo ry n9 / �l - - \ GV \ t Existing Settling �. �) �� I �� ! ,'' , v1't �. A \ \ _ ' / ` - \ j \ dJ \\ / �IJ S \ \\ f / PLANTING DATE SEED MIX (Ib/nc) \\ 1 y-_ - �','// _ ,o� \ Cell to be Removed /i �� /// 1 '% \\ ' "\ -i ' _ - _ ? \ - Co - v ��; Future Pit �I L-�, a ��\ (�� Piedmont Rye Grain Lespedeza German Millet o \ V � �/� V �1 \ \ Jan.1-M 1 120 50 �, ' �,- '/ \ \ \ \ ' \ C� y b Development/ //j �p \ VIA 4__/" [ \ nY /� � - __ � � � \ : v ti� Shop,Employee Building& /, (g/� V /o� � YAug. v / / / A 1 rt � { �•f \ -� Existing Pit ) f v� � V Aug.15�Dec�30 120 40 i 1' !' / / �' 040� \ � - Containment to be relocated J, )) �_ \ l -e / jl;' �; ' r\ , �,- _Development ;// \ , , \ ,,�� �/' - / �� \ I 1 , 'j\ 1�j \\ 1 /(/r� r \ ��\ ��� � � � ' 1 Costal Plain Rye Grain Lespedem German Millet ¢' \ \ ` i t ,� \ � \ � ` �-. '� \ -� � � � �� � �,'�;% ���� `. � \ `� \ \ �\ \ Jan.1-April 15 120 50 I O� , \ _ / � I �, - �i \ �� � ;'' C �v � / , ,�''_' 11 ` -J Existing \ April 15-Aug.15 40 \ S / \\ /�� ?'�i ,��/ , 1 \\\ \ \ Aug. 5-Dec.30 120 I , ` - 7 - \'! \ \ \ �/' f� - (� �-• \ a Berm \\ J r 9• ' 1 _-� _ - - � \ -J \ �� \` \` \- - t, - �\ r �\ C \\ \ \ Mountains Rye Grain Les edeza German Millet /� ' - I \ \ - - \ �0 �r^� (�/ \ `�- i 1 \ V May 15-Aug.15 40 '' / / \ / / \ \ \ - k ) ' f l l � \� �J , �/ /� \c{ h J �� \ o\ k \ \ Aug.15-Dec 15 120 \\ \\\ � :i � \ 0 �- /'� / \. A /` -- \ / 111 �� - __� ,r, \_ ,"r , `� v Fertilize seedbeds with 2 000 Ibs/acre lime and 750-1000 Ibs/acre 10-10-10. � j/ � �� ` \ _� //- \ � \ \� \ (gG !/ �� `��) -- __/ )fI)I ��'\\` --, �r" r � �- �`��� ` \ �, \ \ \\ Mulch with 2 tons/acre clean straw or hay. \` \ - -- -- c \ / �\ //� _ , _, - / 1( J, \ \ \ \/ c ' I _ �'_ _ ' J \� _ `` 1 Y, \ \ Tack with rapid setting emulsified asphalt at 10 gal./1000 sq.ft.,or other / i %/ \ \ \3 \ r � �-- " \\\ /-- n � =\ " �{ �) > j � \ \ tacking agent approved by Owner. ///�' r _ \ State of NC �. i/ _ , / �✓ 11 �_' f �/ \ \ �'_ ,1 .�/}f? - j1 d \ \ \ '10 \ ** rr, \ ' )` ,� \� I T I \ � \ - __, I -) Imo, \ ��\�\ � �-� ( �\ \ 1 \ \ \\ \\ \� �\ For Permanent Seeding information refer to Std.6.11 in the NC State _/ \ . \ \ '\ \-- ` `, �_ _ / / l� I ) \� . \ ��`` ✓' �� ✓ \ \ \ ♦�'0 3\ \ \ �\ Erosion Control Design Manual. \ \ \ / \ 1 )\ - 50 onin[tg Bl Blasting e j' I � - _ _ \ \ `l - r Buller 1\ b L9 / Class B Rip Rap 1 �� \ \ _ - - %- - -��� �- \ ,,,�•.i 1\ \ �,� ,_/� �C) - '� !. A \� �\ ur �� Baffle(Replace \l \ \ I , I - -� \ \ `\ ,\ l �\ \.� / \../ /!, l u` \y�\ \� \➢ ` \ rY months) \ \ eve 6 \ \ \ ` ll o l \ , -� r �, ��.- ' \ Via(, O�\. f ;^-,,=� �. \ \ i - - 66%of -) , _- / - / �j - - No � � � � "_ \ `� `' / \ Basin Inllet Basin + -�► Basin Basin Outlet ) / I / / % - � ',- j -i�"" . ,` I. ^n \ ) \\ / \7 - �� �/ �� ��- - t �� \ \ \ _�" \ Length Length i vC �J// , ; ,� 1 / (� 'r !'/ Existing .� \ l / � / � l l�" �/'- v� \` Berm �,, A�,A, ' � `vim \v ) f� v;vv- �� '�5 �, � 1 / .7 l __ o A � �\, /`'- I / / \\ \ ® � v I I� / v I3 `\ Av I sue' � !/ r I ► \ 1 � � � / -_ \ -�_ l \ \\ '0 \ � - / � \ \ / I I Class B Rip Rap Baffle DimensTarrs "� ' Top Width 2' III` \ �� f/ \� ( , ! // / / \/ Height 3 �� / / (" I� . -, ,3 \ 1 J / (r h '� f/ o f Bottom Width-8' AT THE TIME THAT AN ACTIVE FACE )� ( ( / \ _! "f-, \ \ \ \`\� / "-/_ --^- _�� '��. i7\-^ ",� -""'-- / / \/` l I///.(� ` Class B Rip Rap Baffle Detail BECOMES A DEAD WALL,INFORMATION f / -�\ �, \. \ 1 (Tk)\1_-�- �' �_"- L '� Jul �- _Jj ` \ -/- -- / �Y / / / L- ' g I ` Ill �- `� \ � / / WILL BE SUPPLIED IN SUPPORT OF ` _ EXiS tin / �`---+ \ // __ -_-_-- -� _- C\ , / / / THE DETERMINATION OF FINAL SLOPE FOR - -@ , l� / UNCONSOLIDATED MATERIAL \ \ _'_ \ L7aSiTi 1 .ot`:T,�?J \ -1. \� //_ /��,i'��,."L\l -! ._.. � '_^ y) (MAXIMUM SLOPE NOT TO EXCEED 3:1) / 1 \ , \ �`-_ r- '':j /1 - / - J. ' 1 J I . J 1 / 10' SAFETY BENCH 1O' � - G\ \ - \ / �v `Vv \ �_ _/ Zj /� \ / \\ \ \ J , 1// c \ �( BENCH HT VARIES l l \ , \•. "� !v. \. \ \ • 1,/// - `- - ! - -' �`�-- \4\ �� / \ i ' �//`, \ b r / / l WITH ROCK ELEVATION \ \ \ ,\ ,^ _ - ____ _ I \ O - APPROXIMATEHEIGHTRANGE: \ ` \ \ / / _ \ � - .. r C - //_ - ,� \ '� -� -- _1 \ ,- ,� '\�- / O / o'So' \ 1 \ \ \ \�G4oT 6j/ / / ��j / -\ �\ �I� l , f / �egend \ f I \ � _ �G.3ov ;/� V�, " J -�� /� ,� ��\ �/ �/ l "\� - ! !� / � \ \ / PERMIT BOUNDARY ,� �-_- , �/ / / �� VARIES-APPROXIMATELY ////% � / ; / � l l ( � � '. '\ X"', l \ � ,., �- � - ---1 '\ 't. -_ � �, f 1-' ADJACENT PROPERTY LINE 20FHEIGHTOFBENCH // I / j I 1\ - // FACE ABOVE \ < ( •�.. \ \�\ \ ` J \ + /+ / // '/ ;p ` f WIDTH WIDTH \\�\ �� \ -\ /' ,/ \ 761 __ ` \\ ` \ // /( I - y` / TEMPORARY DIVERSION PROPOSED )j( Y\_ -__ - _ _ _G9O _ \-_ \ ` 1..... \ \ j, `\ I \ _ - - '..!_. • _ \ Proposed '`i Diversion DErTXIMaoo' \ -�_ �\ Q, - - `- - - -` \ �� P / EXISTING ROADS '\ + TYPICAL CRO55-SECTION - PIT _` - ` -` \ .� Berm ' fi � ~- 1680 \ � - Berm �Typ•) e ' -\ - Jo - - - \ �X �1�� �7 /ice �' \ � <ie \ \ \ �` t \ \ �' .f ✓4/ � -\ / BASINS i / / \ \ / Z ;__'� `�6((» ) . Tr \ v. ^\ //' I ��`1�.�J -."' I,�o - --\ /PLACE MATERIAL FROM EXCAVATION ON ,I / ! --�_ \ i ' - DOWNHILL SIDE OF FLOW.USE ADDITIONAL /--- / ,l ` Diversion y? \ / C� FILL TO ACHIEVE SPECIFIED HEIGHT AND WIDTH_ / / ('7' \ � ' // � ' �I � �\ � /_\ j M� JE TTLI N G CELLS ALOL DIVERSION DITCHES MUSTPROVIDE ____ / \ ( ` Beli11 \iyp'J \ ' -\ �\,` ', '."_,...\ ' I-, ,�-\�e,01 I\ "_ / _ '^-/-� I '+ POSITIVE DRAINAGE TO EROSION 2'MIN / 1 �� \ \ : \ ��' �� �e'Sl '^J /' / / '14 CONTROL BASINS. - l/ (({ !OO. _- - - \ `� \ ' {l�. I .O = - �- _ /,I 'v ` \ V` �l /" l - BODY OF WATER - 1_I I1=1I1_1I �; _) ? / � p ' / Monitoring F Z �_N l'- = -�I 1=1 I I-1 I 1-1 I \V - ( - _�' "9'� / -, � \ �lI hlfl �111r.,: ' / Well#2 �j 4w Low = _Q. I�I=Il 1��=���-1111111 I r r ) 6� ` / � n `1-0" � � I \,. �� Jj / - / ` BUFFER* SHE--Mellenmum I 71Z. _, ,� Proposed -� �__ -III _ill-IIIII_I11= � - ��- III V \r""S � „� v � \ \ ! classified other than unexcavated are I I=I 11 i I I=I I I ' Sediment *Buffers 6'TYPZLAL listed on map. VARIES \ / One Apts LLC ` �y / 3'MIN SEED AND MULCH DIVERSION CHANNEL AND DIKE / \ Basin#2 C�e�" a IMMEDIATELY AFTER CONSTRUCTION.CHOOSE \\ I \ J\ \ \/ v APPROPRIATE SEEDING MIXTURE FROM THE ) ( _ _ �i - I I � �x��%\,r\�' �/ �- � CURRENT PIT SEEDING SCHEDULE. HT University ``\' /,- �-I / � \ / � _` / \ / TEMPORARY DIVERSION DITCH Village Owner LP ( ���� / � f / 1 NCSECDM STD.6.20 J 1 • � / FUTURE PIT LIMIT / / _ �o yi / CREEK '_ - - - f/- - / \ _ 0 - - _ �� i � ', �' /;' � f] < < ( \_ Charlotte Mecklenburg BOULDERS , ( - tiv _ \ V �- Board of Education FUTURE BERM 3'Lx3'Wx3'D \/ , '\,� L, t \.- - / / �' �� \ "\ 1 �\ (\ `.'� J fib\ \ / \\ �`0 � � _ - \r� %I/ \ /1 I I \, L J f %� -=(Co�j / 1\ \ EXISTING BERM l ) \ \ /� f \ ' ��. `.w /,� \. ._ ' //.�_ < �.` \i , f / _ _ PROCESSING AREAS - ----- �_ -HIGHWALL ­­-, \ T''� \\\\ � \ � / �� ; ^ "_�\ � PROCESSING EQUIPMENT `\ _ , \ 11 BOULDER BARRICADE /� Sediment Basin Design Calculations (NCDENR Std. 6.63) *Current Proposed Change Affected to Affected Total Affected Mar�ti� East Division Drainage Storage Bottom Bottom Spillway Spillway Weir Top of Berm Settling Category Acreage Structure Area Volume Q25 Length(ft) Width(ft) Depth(ft) Length(ft) Depth(ft) Efficiency(sf) Acreage Acreage Marietta Carolina Region **Tailings/Sediment Ponds 1.9 -1.9 0 Basin **Stockpiles 0 0 0 _ Exist.#1 1.33 2,520 9.55 35 20 4 12 5 NA Wastepiles 32.29 -12.89 19.4 Mallard Creek Quarry 2 1.40 5,040 5.75 45 20 5 10 6 2,196 Processing Areas/Haul Roads 47.06 14.94 62.0 -_.__ Mine Excavation 61.85 1.39 63.2 Mine Plan Notes: Other Unaffected 80.32 -8.56 71.8 SCALE -. 1R( ' 150' v • Calculations are based on Rational Formula Q25=CIA, C=060, 1=8.21"Ar. Weir Formula Q=CLH(1.5), C=3.0 H=1.0 Total Affected Acreage 143.1 0.70 144.6 - Date: 9/16/2024 Scale: 1" = 150' - - • Settlin Efficiencies are based on 10 * 435 SF Total Permitted Acreage 223.42 -7.02 216.4 9/16 24- Design by: Mining Permit #60-09 Loco ted:Charlotte, Mecklenburg Co. g Q g 1 Revised to Update Site Conditions / .-..__-_­__-_______ • Berm footprints will be modified in the field to allow room for basins to be constructed outside defined stream buffers. * No. Revision Date: Drawn by: JN Site Number: Current effected acreage based on currently approved mine plan. 0 75 150 300 450 600 ** Acreage is included in other category calculations. H:\Charlotte Quarry Files\Mallard Creek44410\Drawings\Mine Map\Mallard Creek Mine Permit Modification 9-2024 Updated.dwg TYPICAL BERM CROSS SECTION 50'-0" IT-O" 50'-0" 20*-0" 501 15'-0" 50'-0" Site A151-TV111 11-1 1 11111 _111111 1111 1 �1 I IE�] E 250*-0" 1)Slopes will be tracked during construction to aid in the establishment of vegetative i C4 2)All exposed areas wFill be stabilized following construction 3)See Seeding Schedule for proper stabilization plantings. Oa 4)All berms will be evaluated for the need of slope drains during stabilization.(NCbEQ EScl)M 5td.632) No Scale PS NC I LP Vicinity Map J I SEEDING SCHEDULE FOR ALL GRASSED AREAS SEEDBED PREPARATION NOTES: 1) Surface water Measures are to be installed according to plan. CHR V111-PCP 2) Areas to be seeded shall be ripped and spread with topsoil(if necessary),3" MHC Charlotte deep. Total seedbed prepared shall be 4"-6"deep. Queens LLC 3) Loose rocks, roots,and other obstructions shall be removed from the surface so as not to interfere with the establishment and maintenance of vegetation. Surface for final seedbed preparation,at final grades shown,shall be reasonably smooth and unifiorm. \ ( � ^ 4) If no soil test is taken, provide fertilizer and lime according to seeding schedule. In addition provide 15 lb./1000 sq.ft.of super phosphate. ()()o 5) If soil test is taken,provide fertilizer and lime according to the soil test \f �, � / � J I, ' / report. Soil testing is recommended. j 6) Lime and fertilizer shall be applied uniformly and mixed with the soil during seedbed preparation. � -;,� � ----� �\ -� I / � \� \ 7) WATER all seeded areas and keep moist until new grass is established. \X, f7 j f \ \ ' - - ,✓ J ' 1 \ �- \ PLANTING DATE SEED MIX RATES:LB./ACRE April 1-August 15 Serica Lespedeza(scarified) 30 Pensacola Bohiagrass 50 ri Common Bermudagrass 10 'A. German Millit 10 Prior to May 1 or, after August 15 Rye(Grain) 40 Fertilize seedbeds with 3 tons/acre lime and 500 lbs/acre 10-10-10. Mulch with 2 tons/acre clean straw or hay. Tack with rapid setting emulsified asphalt at 10 gal./1000 sq.f t.,or other tacking agent approved by Owner. Mecklenburg Stella County & �90 Alexander Mallard Creek _ Harman Et Al. Post set 8 ft. Corner to 10 ft.on centers Line --=^'�- —_ - --- i=? - _\%' Post Post 4" X X X X 101. Z X X Duke Etlergy Z X -590 --590- X X X 10.. X L 0, X X X X 1611 Clio J� 3/8 in.strand 3' 620 min, 112 in.turnbuckle with clips or preformed wire end grips. LJ: LA 0 NOTES: 1. For temporary,movable fence,fence post shall be steel"silt fence"posts. fill 2. For permanent fence installation,fence post shall be 4x4 treated wood posts. 12, --A __\\ I >()0 TYPICAL BARB WIPE FENCE UETAIL L 610 Z, 7 0 l s ' \ \\ %J �\ AT THE TIM / / / '"' 1 `, _- ' / / / — '� _� - \ \ E THAT AN ACTIVE FACE BECOMES A DEAD WALL,INFORMATION WILL BE SUPPLIED IN SUPPORT OF 6 ION OF FINAL SLOPE FOR N r Buildings to remain. THE DETERMINATION_j UNCONSOLIDATED MATERIAL. eground storage tanks 0 (MAXIMUM SLOPE NOT TO EXCEED 2:1) 0 Above SAFETY BENCH to be removed. / Plant equipment will be removed. Plant site will be 10' 6N e / \\ graded and stabilized. Positive drainage will be _/ \\ \ \ \ \ _j Z , . directed to the existing pit or Mallard Creek. BENCH HT_VARIES j WITH ROCK ELEVATION 4 j / / 6?() APPROXIMATE 0'50HEI6HT RANGE: S DEPTH OF WATER TO BE /> -ERMINED NATURAL DETERMINED BY SAFETY BENCH WIDTH CONDITIONS VARIES-APPROXIMATELY j 112 OF HEIGHT OF BENCH FACE ABOVE (JI State of NC MAXIMUM DEPTH TO BE DETERMINED AT TIME OR RECLAMATION TYPICAL RECLAIMED - PIT CROSS-SECTION 4 A Z� � ,' , � \\ ' ; � ,- -- � V -650 Settling Cells will filled and stabilized. r 66( 4)" _j 7 Ll � : f \ \- -/" � -- �C .1 A �3 X trill' --A 4"1 640,, ......... �7 660_ G , lExisting Pit allowed 6�0 to fill with water �So % ............... .......... ................................... State of NC \6­ _630- ,A 7 J - - -� 1, ) � � � ,,� \, � � ,, \r \-;\,;, � � \ \ \ J � / � C`T11 � � _7 % ------ X —6\�017 J, _>Zo le� —690 PERMIT BOUNDARY 7�7 ADJACENT PROPERTY LINE 66 _�ti',1 �` I� ^`°` Q '\ � ' I / .1 -�r BODY OF WATER EXISTING BERM 69(), 6_80 SHF-Mellennium One Apts LLC HIT University 7\1 - NOTES: Village Owner LP __690 J, D I __— -7 1) All unpaved areas above water level (i.e. road shoulders, berms, dams, etc.) / i I X /-- _\1 v -700 -\TX,C_ �_ _\ - /�- J Charlotte Mecklenburg to be stabilized with vegetation.. If sufficient cover does not exist, overseed > as in Seeding Schedule. Board of Education 2) After seeding as per Seeding Schedule, berms and slopes beyond road shoulders outside the office area shall be unmown and allowed to revert A 0 L to natural vegetation. 3) Berms are to be built as material becomes available. The extent of the berms shown on this plan are anticipated; final dimensions may vary. Martin East Division Marietta Carolina Region Mallard Creek Quarry Reclamation Plan SCALE V = 150' Date: 9/16/2024 Scale: 1" = 150' 1 Revised to Update Site Conditions 9/16/24 Design by: Mining Permit #60-09 Located:Charlotte, Mecklenburg Co. 0 75 150 300 450 600 No. Revision Date: Drawn by: JN Site Number: H: \Charlotte Quarry Files\Mallard Creek-44410\Drawin-gs-\Mine Map\Mallard Creek Mine Permit Modification 9-2024 Updated.dwg