The URL can be used to link to this page

Home My WebLink About20240118_Liner Basis of Design Sequencing Drawings PIEDtAONT LITHIUM WASTE ROCK PILE CONSTRUCTION SEQUENCE LEGEND SHEET INDEX PERMIT BOUNDARY Sheet Number Sheet Name Scale DELINEATED WETLANDS Cover Sheet OOC-01 Waste Rock Pile Plan View/ Liner Limits 1"=200' 100 YR FLOOD PLAIN OOC-02 Waste Rock Pile Cross Section Details As Shown CS-1 Waste Rock Pile Construction and Sequencing 1"=300' - x- x- x- x- 7 FT. ZONING FENCE LOCATION CS-2 Waste Rock Pile Construction and Sequencing 1"=200' - x- x- x- _ SILT FENCE LOCATION (to be installed a min. of 10' off toe slope) CS-3 Waste Rock Pile Construction and Sequencing 1"=300' CS-4 Waste Rock Pile Construction and Sequencing 1"=300' LIMITS OF DISTURBANCE CS-5 Waste Rock Pile Construction and Sequencing 1"=200' 02CO-GO05 Sediment Basin No. 1 Plan View and Profile Detail 1"=50' SEDIMENT BASIN LINER SYSTEM (applies to SB-1 through SB-10 ( pp 9 ) 02C0-G006 Sediment Basin No. 2 Plan View and Profile Detail 1 =50 02CO-GO07 Sediment Basin No. 3 Plan View and Profile Detail 1"=50' RECLAIMED/REVEGETATED 02CO-GO08 Sediment Basin No. 4 Plan View and Profile Detail 1"=50' 02CO-1-1005 Sediment Basin No. 5 Plan View and Profile Detail 1"=50' WASTE ROCK PILE SURFACE WATER MONITORING SITE 02CO-1-1006 Sediment Basin No. 6 Plan View and Profile Detail 1"=50' 02CO-1-1007 Sediment Basin No. 7 Plan View and Profile Detail 1"=50' WASTE ROCK PILE PERIMETER 02CO-EO05 Sediment Basin No. 8 Plan View and Profile Detail 1"=50' 02CO-EO06 Sediment Basin No. 9 Plan View and Profile Detail 1"=50' TEMPORARY CONSTRUCTION ENTRANCE 02CO-DO05 Sediment Basin No. 10 Plan View and Profile Detail 1"=50' 30 FT. TOP OF BANK STREAM BUFFER SUMP F -F TEMPORARY DIVERSION DITCH F -F PERMANENT DIVERSION DITCH EMERGENCY SKIMMER BASIN SPILLWAY RIPRAP EMERGENCY SPILLWAY ® ® OUTLET PROTECTION 0 GRASS LINED EMERGENCY SPILLWAY SB-4, SK28, ST-103 EROSION CONTROL STRUCTURE LABEL EXISTING TOPOGRAPHY CONTOURS PROPOSED OPERATIONAL CONTOURS PROPOSED TEMPORARY STRUCTURE CONTOURS C-1 CULVERT LABEL CULVERT FLUME POROUS BAFFLES LOCATION SLOPE DRAIN LOCATION DIRECTIONAL ARROW FLUME / DIVERSION DITCH DRIVE THRU WASTE ROCK CONVEYOR SCREENING (SOUND) WALL GROUNDWATER MONITORING WELL SKIMMER SEDIMENT BASIN OUTLET CULVERT WATTLE I•II•II•II•II•Ixl=Ixl=I HIGHWALL SAFETY BERM 0-----—0 LOCKING GATE 1 2 3 4 5 6 7 8 / // II II \\\ // //' / - - / I \ '/lil/l,/ I � I I ,/l // — \\\ I I 1 \\�\\\�\ / %',��\ 111�►II III �II� III1�\ \ \�\\ `\�' i'� \\ III I \ / / / / , / / / �/� �\ \\ \\\\ \\\1 \\�\ \ / /� / / / // // //ice D\\ \` I \ \ / � IIII / II �, n / / 1 / / / // � / / / ///� ///�// �j/�//// \\�\\\\ ` 1\\IIII\\\\\\\\\\\ \\\ \ \ 1 \ /i / I / / I / / // �/ / \� \ \ \ , I \\\ II I \\ II1�1I / / // /// I I / \\ \�\\\ \\\�� /„///// — JI b� $ ' /' 11 l \' \\� \\\� II Ilit SB-2 \\ \\\ \\�\IIII\\\ IIIII / l \� 1 / I I \I IIIII III ► ( / ,/,- � — �liilii ,Ilf llll / /lllllll\L�== \ � /,� I IIIII \ III / / I I // I \ \\ \ 11 �0111IIII I IIIIIIII III I — ERDA //j /�' // / 1 / / o//o \� / \ I 1 \ \\ III III t\\\ \ I — J / � / / I � \ \ \ \\ 1 III IIIIII , /„ /, \\ III \� � SB-1 � ///N/ �' / ( I � �� / III\ \\\\ 11 I I' Ww \\I III III I1 \� — _ _ - - I \ III 1 � III o I � - - 0 , �i=, \\\ I \\\\ If 1 I 1 I I11111�11 \ r , �"�\�\\I \\\\ \ \I > sso SB-10 850 SB-3 \E \\ \ 1 \\ / , \III \ / I\\\ Gp2l $ NOTE: 11 IIII\� \ \�11\ � ��Illl11111 I/I� / � I IIII I \ IIII\ \ � /rl/IIIII I� �� WASTE ROCK PILE sN } / 11 l ' I �� - \\\\\\\\�� SB 4 1. SEE SHEET OOC-02 FOR LINER SYSTEM CROSS \\\ \ \ \ \� \ AREA PHASE 1 No� WASTE ROCK / �� ' Ta A /// 1 0 SECTIONS SPECIFIC TO THE WASTE ROCK PILE, LL PERIMETER DITCH AND SEDIMENT BASINS. \\\\ — �� I►I APPROX. 114.5 AC. s5� �� PILE AREA i� \ -� � //// Q w II/ p 2. SEE SHEETS CS-1 TO CS-5 AND SHEETS 02CO- PHASE 2 U) G005 TO 02CO-DO05 FOR DETAILS ON WASTE ROCK LINER SYSTEM WATER \\\\\ IIII IIIIII' CONVEYANCE VIA PERIMETER DITCH, CULVERTS, APPROX.�;S AC. AND SLOPE DRAINS TO THE SEDIMENT BASINS. \\ �\\ \ \ \\\ \� � I \\\\\�\\\\ \ \ I �� I \ \ \ \ \ \ I o I II\\\ III\ \\I\\ LEGEND ,` T�� / . '�\ \\� i ( I\IIII\ IIII �' — - EXISTING MINOR CONTOUR II ,1�\\\\ \I IIIII , EXISTING MAJOR CONTOUR 1 \ �I \\ \ 111►1 ►�I I \ � �\�` � � I� 111 I 1 ,�l\ 1` 11 I l lll►►I, ll\, J WASTE ROCK PILE LIMIT LIMITS OF ENGINEERED COMPOSITE LINER B / 1 SB-9 PERIMETER DITCH l0 \\ \ � /T / / / I / �I I I I I I I I I \ \ \ SEDIMENT LINER SYSTEM I /l // / // / ,/I/ll /� I I� 11 I I /I 1 I I III I III / / l 1 l �/ I I,/// I MINE PERMIT BOUNDARY If , �/ ' // / //// _ ) 1 w I %/' /� ' / / / / j / l 1 I / MONITORING WELLS )I 111 /�O /lI / ll l l/l/// // l I /�� / SBSi ll � I Ike �— � // / , / ,• \ -- - J/ / ,,/ /// I \ \ I _ -/ ) I \ ► 1\,III'// '/ i'�/'/ / l ♦ 40, - _ _ /If / l /�/ y� - /J / SB-8 SB-6 _ _ ` � — r � � � �- - .� J I I I \ \ \ / 11 _ // I / III // / I / �� (j/l�/ I I 1 1 MONITORING WELL* TABLE Q ,// I 1 / _ — ' /// ;, _ \ may\ OB-32S I _ / �, /' /�// / J� / /� ► I // / / _ — \ // /` _ / / _ / /�� _ / DESCRIPTION NORTHING FASTING r J �� ,� � 1 - > �// ( / / \ ��/�� JI III o _ / ) / / /�_ / / I / SB-7 850— / / �'� \ / / / /�j/ —— —� / — — / / //! i / / / ~�� /j / l l l 11 1 OB-18D/OB18S 605984.83 1312376.87 OB-21 D/OB-21 S 603416.63 1310474.89 / __ _ — _ � �/ _ OB-22D/OB-22S 604205.46 1313906.74 ' III � �� _ /- �_�� _ _ -- � / \ / ---� // // � — � / / � / / 1 / / / /i III "s �$ — / �� / / ) — �/ , I / � / /' / / / / , / / i / — —_ _ // l l /� \ �— _ v - `_ � ��v` _ — _ / — _ —��/ \ _ / ///� // / ' / / ✓/ ` l l l /l a OB-29S 604622.04 1310852.71 % — �� .��,\ — // %_ -- — _ _ \ /i =_ _ �i — / / — _/ / I /' I I \\ I I ( / / I OB-30S 605488.04 1311491.08 If 13 / _ CL OB-31 S 605586.47 1313640.64 / o \ — \ \\ \ l`- \ _ — — _ _ ��\ — \\ ^, \ ��v �� — \ _ _�/— — — _ �- 1 I / 0 OB-32S 603255.83 1312443.42 MONITORING WELLS TO BE PLACED �x\" i'/ I I / /� I1 � 0 PRIOR TO LAND DISTURBANCE. PROJECT MANAGER K. THAMES, PWS CHECKED BY M. PLUMMER, P.E. FOR PERMITTING ONLY WASTE ROCK PILE DRAWN BY J. GAUL PLAN VIEW/LINER LIMITS PIEDtAONT ° L I T H I U V ' SE" CD Ln °'5�°95 PIEDMONT LITHIUM CAROLINAS INC. SHEET FILENAME 00C-01.dw 01/2024 GASTON COUNTY NORTH CAROLINA �/Pdil l SCALE 1"=200' O O C-01 ISSUE DATE DESCRIPTION PROJECT NUMBER 10263685 jy9�'' 3 Q u 1 2 3 4 5 6 7 8 ROAD DITCH ROAD BERM 1100 1% FINAL CREST EL. = 1090.0 oy 1100 CREST EL. P ASE 1 = 1068.0 cal 20 ft. Bench (typical) PROPOSED FINAL GRADE U D 1000 2 map w c?1 1000 <w m PROPOSED GRADE �� Y PHASE I PERIMETER DITCH LI ER 2 Zti UU O 7 CROSS SECTION V w 900 w Q 2 3 SYNTHETIC LINER 900 PERIMETER DITCH LINER WITH GCL SUBGRADE CROSS SECTION w 3:1 U) _ EXISTING GRADE 4; 800 z 800 0 Co Lu WASTE ROCK LINER SYSTEM 1 = C° z CROSS SECTION o ~ z 700 a w m 700 w z w � g w o w 600 600 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+00 13+00 14+00 15+00 16+00 17+00 18+00 19+00 20+00 21+00 22+00 23+00 24+00 25+00 26+00 27+00 28+00 C WASTE ROCK PILE CROSS SECTION D-D' O O O O O O C SCALE: 1" = 100' WASTE ROCK PILE PROTECTIVE OVERBURDEN LAYER HDPEGEOMEMBRANE GEOSYNTHETIC CLAY LINER (GCL) FOUNDATION SOILS LAYER EXISTING GROUND '\ //1// //\///\///\///\///\///\///\///\///\///\///\///\///\///\///\///�//\ 1 WASTE ROCK LINER SYSTEM CROSS SECTION DETAIL SCALE: 1"=5' B LIFT 10 J Uo v° �V �a LIFT 9 RIPRAP LAYER ° ° ° ° o ° P-A ° ° °° �o ° ° HDPEGEOMEMBRANE GEOSYNTHETIC CLAY LINER (GCL) LIFT 8 FOUNDATION SOILS LAYER LIFT 7 EXISTING GROUND \� \� \M,\X \` \�\\ \ \� \\\,\\` \\\,\\\, / /�//�//� LIFT 6 /\\/\\//\\//\//\ \ LIFT 5 2 PERIMETER DITCH LINER SYSTEM CROSS SECTION DETAIL EXISTING GRADE LIFT 4 SCALE: 1"=5' LIFT 3 77 t PERIMETER DITCH LINER e WASTE ROCK LINER SYSTEM LIFT 2 CROSS SECTION Q CROSS SECTION LIFT 1 o SEDIMENT BASIN LIFT SEQUENCE 2 HDPE GEOMEMBRANE" SCALE: NTS PERIMETER DITCH LINER GEOSYNTHETIC CLAY LINER (GCL) A o CROSS SECTION FOUNDATION SOILS LAYER � � � �j��j��j\�j\�j��j\�j\�jxl j�N j\�jj��j��j��j\�j\�j��j\�j\�` EXISTING GROUND \ //\//\//\//\//\//\//\//\//\//\//\//\//\// \\i\\j/\\/ //\\//\\//\\//\\//\\//\\//\\//\�//i\//�\//�\/iX\/x\>\Iq 00 3 SEDIMENT BASIN LINER SYSTEM CROSS SECTION DETAIL N SCALE: 1"=5' o PROJECT MANAGER K. THAMES, PWS FOR PERMITTING ONLY _ u CHECKED BY M. PLUMMER, P.E. DRAWN BY J. GAUL CROSS SECTION DETAIL P I E DPAON T cn 0:- , rn pLITHIUM L PIEDMONT LITHIUM CAROLINAS INC SHEET 0 1 2" 9 025495 0�o FILENAME OOC-02.dw 01/2024 aiS.�•.FIN��;Q•°��a� GASTON COUNTY NORTH CAROLINA Ile ISSUE DATE DESCRIPTION PROJECT NUMBER 10263685 '�o/ ��j i F �ti� SCALE AS SHOWN a u / / � / / III" l \ \ \\ \ \\\ =-// ) Ir - I I � -- - : / // /'-' / / ' / \ \e \\\-'// \\ ( \ / / / / � ,�_- - J / I I \ \ \ \\\ I \A-soe�// // \\ \ \\ I III I I \ \ \� / // - � 1 �� l l \ - � \ ��_ - / / / /�--'' - I I I I \ \ \� \\ \\\ I \-�oe�/// i/ \ \\ 11 l l l I I I I \ \ \ - ' / / // II I / / \ \ \ \\ 1\ 1 d l \ _ / i \a 11 III \ \ \ / / - I \`ll - 0 /i / i / // I 1 \ \\ 111 1 \\ J 1 \ 1 I II 1 \ \ \ / /« - , / / „�I II, I // - \\\\ \\ 1 \ 11 \-_ -� �, \ II I III\\ \ \ - / / _- �® , �( / / � /� � _ _ �� \ `�` \ �'i / /��%_- _� / l ��/ / "� II,� I I / \\\ \ x 111 i - -i x- V I III 1 I II II\ \ \ / � / / -'_�% P LAN VIEW 9 I I I/ /, - \\ \ IIIIII \\I, , \ _a ,�,/ \\ III. II,I, IIIIII \ \ -/ , , i _ +0 I - \ �" , \ - / / // / - / \ ,; , / , ,/,'1 I I 1 I Il /- \ \\\ 1�11111,, \,1, , \\�a� i, \ \ I P I \ \ / , \ / /! I/ / - \\\ \\ 11 \\\ \--_ /// ��\' \ 111111I 11111\ \\ `_/ / / _- I k;' \ \ \ / 'i _ -- - \ \ � \ ,' /' - / / ` ' / //„ \ \ \ - //, / \. III 11111111 / / l / / /l" / 1// // // �- \ \ \\ \ 11 \ \ `/ i _,�\\ \1 I III / III 1 \ _�� / - 1 / - - \ 1 -/// / / - _ '�/ 'kl //�/ ll////'ice-�\\\�\\\\t' 1\I\\\\�\� \��--/� � �\�\ I I\�l\1111111j111111111 \ � \\\ �� - _x-x / '/' -� / / ///// /� /// ///'' \\ \\ \ \\\\ \\\ 11 \\\\\\ III 11 \I \ }� - r+ '/ / / --/ // / / // // '--\ \ \� \\\\ / \\ 1 l I \ \ \ - ----_� / / `� //�,%/ %�` / /%- \ \ \\\ \ ,,,.dames /// -_��\\\\ II i \\ �_ ----- .�� / �( \ � -- / / \ \\ \ / / / w \\ \\ ;� I \\\ 1 I I I l ,�=' - J 0 300 600 900 -- - / - � v vv _- v „ - / l / -i / //,l / // i// /--- vv v vvvv \\ - l / / i-vvVAVA I AAVAVAA\ \\VAVAI\VA VAVA1A ,.- X - - / - ---� A VAA v� 1 \ / / / / ea / l / // ;/ / / / / v vv vv v A \ - / \ .I ( \AA\VAV \VA 1V A -+, i /, -- /.� / s�// /// /// �� vvv / /% wA A\ ASV\111 VA \\ \ \ �� I / / / ---' //: / ��l/l/ /////j�iiii av��wvvvv �\VAAv_��- // �wA A V A� A11111 VA\\ VA A +'' ,'`� / r,* /q /', /iii/ //,/+ l /// // // i esO �� vAVAAVA �VAVAA�� ! / // / \VA\\\ ) A VA\V A \ VA\ / i / x i - - v 1 / / �- / /i�v/ //%+ / -'��` �VAA VVV l / \V A A \ 1V A\\V A VA \ \ //' � i // / // // - � -- vQvO vvv- // // /A\\ VAA \ V A\VAA\ VA � 5- - � - �� r~ �� / / / A �, _ /ii1/r/ / �////////,/'� ; �� v�vvw �vv�v��v / // /// / �\VA V) � 11 VA VAV A A 1 y / / �f \ / ,�- - /,/ / // //I //ice �wvv vv �w�vvv / // // / V \\\\\\V A A\V A\ VA \ � �� iq! / /// // l I _- - - v vv vv v vv l / V \ r -/''' / / a� v v v v 1 xi / / / / r / // ! /�; vvv vv v l l / / A \ \ V A \V AVA \ V �, �' /�`�� V - / 6/, / / 1 � - - -vvvv v vvv vvvv \ - A V A \ \ 4J �__ ! �� A/ I- / / / / ' v �;+ / >ci / // /1 / / l v vQvvv * v vvv�1 A, l // // d//AVA\V\\V\\ V A\ \ \ ;c-/'' ��i �/'-' �-.-.J //,�'/i --/ /� //j // / III _ - vvvOvv� v, / /////// /% A\\\ \ \\ A AA\, VAV A11 \ V A 11 V / / a vv �i / / IIII vv v �-v vv V - // / / V A V C\VA\, AVA\ \1 A \\\VA1� 'f l y '- '/-- - -- / /// / / / / J < _ - vvvvvv �v vvvv Av / // // V 1 II „ ,/ �� - / /-- \ vv--- \ 1I \/ i - / / / / /// _ + // i��i/ '// //j I --f ��; ��v�v��vv�vV A\v �_/ / /cif/// A\VA\\ \ 1V V 1 \1 � ' ;' _ o ti / SCALEn� i ;,3 // / �,+ /// /// / / l/11 � - vv vvvOvv- V v- // //ol - A A11 A \�V V1\11 111111 �- r -- r -w \ V '� v / ' - / + /ice / / // //// /�I11 xv wvvv vA \��-// J�� / A V A A I VAV1 11111 1j11 /I l u / / /_,� 1 - 300 - - / //, / //// - vvvvvvv vvvv vvvv vv /�/ ///// vI vvvvv� v ,vvv , I 1 I /I , - �,/ _ - -_ _- v � ,� tiv / // ' , // //// // I ,� vvv vv�vvvv vvvv v ,/ /�/ r/ , v �v v / �, z z i '/�i / + / / ///�/j///II -� vv wvwvvvvv�A\ VAVAv��_�� // //// IIA\VA\\\ \ N \ VAV11\\VAIIIIII/// / z� x - �� vVA � , v -, w� v e' // /' ---/ / ,, / / // /d/lI / v v \ VAVAv��i �/ //// \ V AVA\�i \VA1�\VA11111/// ,�/ / , -� - --- r -- 9 / /�/E �1 / /// / / / /III v -v vvVA\V AA \ -- / /// / / AA V A \ III r� /�_ _ - �� // \\ _ - / /,�// '�'Y / // / -� vv V A �\\\ -/ / / / A �\ \ l // / j _ tt A \ A_ -_ �w� us I /// +, / / /�/ / I v--\?�,-,, VA \ i/ A I l ✓ �� / _ - / / / / / - v A\ ,,A / / v I \ 1\ \ \\ 1 l l /, �� A\ ,� A �� / 1 I// / -----�/� '/x / / / / / /�//// I I / -�'vv�� \\y\\�= �/////%//// AV �A\�\V1VAl�ll II IIIPo�°l// / / �3� �(-Y �_ �- \ - / / /i= -'' /i - - /off/ ,*Y+ /. II, // / / / / / � VA\V' A\. �� / - l ,/ / tl \ II A v - / - - / - / , - , ,+- / // / / / /// // -� vA VA \ �� / / / / IIIIII \ �V \V111 III /�)� ,,, i _ r 11 A v I - - /�/ / //_---' yk �` / // � G/// ///r/// /l vv . �, i//// l / N1 A 1 11 �1 � , � �� / / /i+ ,l / / // / / I / w \\\V A\ VAS _ // /� / 1 I 1 11III 11 I(I I(� ///-- „ / / I \ _ �� / / -/ �_ �/ / I v ��\ / / Y" \V IIII �) Yi ///-_ ��", Imo`/ - J - /a -- „ - _ __ �*/ / +.�/ / / / V A \ _ /ti 1 I I k, ! - �V /� / ,�'+' ,, +'�// /� // / / / / /r I / �., ,\Vv I � x� /// /� /// �i� 1 111 11 \ III 111 III l k' / �i v �1 I -' a°i _- /,�, .� �,� / //i // // / / ///// III / �� vAAA \\\V�--/// / // III I I I 1 V I VIII IIIIII\ ;/'✓//I//�_ _�w IIII\ c I /1 e°� _ ;,, / / // // / / / l/l ( 1 / / >� A\\V�L-, / e// �,f,t 1111jIIIIII ,1_/ ' ////--� �r 0\\ �� £ //1--,/ \ �zz, ,_ /// � _// // / / /i // / / 1 / - - \11111 Idll /// / ull I \ 111 IT,� I / / \ \ & e° - L_- - / / + // / / / // / / / I / \ \\ 1 I\\=-//// / I I I I \ -. //�- \ / l \\\\ \ �� ea -y�� \ 5 �_-'/ - - / !;. //++ / // // /// /// //, - FI I / - \� \\�1 _/////// /v� II III Idll \ �✓/ \\ __ , - - -- l // �° / / // / I / - \ IIII ll,#'lll - //// I I l 1 1( I I I� (\\ k, �i/ \ _ +� \ _ _ / I I I I I I 11 k, „/// - / / / / / / // / / \ III / \_, -- a, �, // \ - // - / /�x� / b/ �/ // / - I I / / i✓/ l 1� I� / / \\ 1 \\ /' / /- - -//// III I II I I \ ///// x _ / \\\\1 _ \ %- / y ;tee / /- s / r /// / // �R ( h= i//� 1 if II I III I''ll II I I1\\\ ,/ ///// a;- / - \\� "?\ / I = C__ / -- - , i // , / // / / / I I / /-\ I II li llllr(I-_ \ //01- 1 IIII 1 u df,l III Il 11\\\ / / / \\ rfx �� \\� _ '_ - i /i // /S13--�\ lilid #_- \�/ ° li I I r I II\ / "` \\V1 - / 1 ! // / / i / I /lI I ( lI l = \'//// / I ( I IIII I 1\\\\k ~ - 'e �/ / \111 , \ c I - ` ''' / I / 1 - ' // ( / / // I / \ / I II I I I \ / - / \ t� / J I - \ ! - - ,* - / / I I \\ //// I \\ x / e�i - \Y l = � - \1r L�' / - �/ - / / / I I 1 11/ll I�`_= �/ / II Il 1 1I I 11II 11\\ d /- / -- III 1� _ ' - % / 6/ ��j. I 1 I I l d11 \ == / / I IIII IIIIIIIII\\\\\ / / / _ �� \ _ l/_„ / // / 1 / / / ////// II \.-- \ /// 1 \ \ / - - y= \t /i _-_- \ _ l� / - _ ti /. {, / I / / //// / I \- \ /// ( I� J 1\ \ / ~\ \t, /� ll \ \_/ �� -_ '- / ! / / // / / \ I / / / Il - ll / / 1I \1 1 1 J I 6d1I11 \ \ \ / / �- i \ � ,� / //l'i � \\ � \ i \-/ �� - - C �7 /' y - // // i / l / / // l 1 / / \ I ( I pbdlll \\\ �\\»/ / -- i/~ \ \- '/ / \\\\ �\ _ - -\ / �%l //� / / \ ( / / / ///// - - 1 / \ \ l\11 I1 I I \\ �� >, // \ �,-k/ i /c -- \\\ - - \ ,.� \', // / I \ \ l l ll/h lkp\ _ \ / III \ ti / _/ - \ �,/k//i /// __--�'\ �- �:,,I / X, / /ii \ \-il l/ / /// / / , I II I I / 1 I /I /// ( l = / \ \ \\\ II II II' I \\ \, / // -i - \ \�-,/1 r/ f/f --`--_ \\\ ��- ` tea g' // // i i � I I ( l I l I ' - \\�\i 1 1 II ( I JI 1\ \\\%\\,Y/ / / /i /�--__ \\\ � _ _�g �- / / ( -�= / / , / / / I / / I 11( \'\ - \\ /i;'\ \1 \\ \\ I I \\I \\\� //i= /_ \ / ice _ �_ \ ---_- - ' ' ,a--� \ / �I ( I / . f Ill( \�- \\ / '\ \1 \ II II Ipl\\\ > //i-= i- / ---- \\\ - - J \/ %4*� I/ / \\ / ll / - / / ) I 1 I / ♦1 I IIII/( \` _ \\\ IIIIII \\ ��/// / -/_ '/'� \\\\\ s \ / \,, // // // / / / I I / IIII \ - \\ \ I \A\ � /// /---i,=_-, /i�°/ '//� ___ \\\ \\ \ / j // l 11 / \�_ ( // // / / I / I i 1\\ -= \\\\`// \ \\\ 1)! I/I I I,ay \\ i /////^_i- n ii /ice - \\\ \\\ / / �/ _ // \ \ \ 1/ //I/ Ilb a�yl II\\ \ /// �_/:_ / -__- \ \ \ \ J - - -__// / / / / / // / I I I\\\ \ l/ 111 I 'O 1 \ \ - - /// - / „ - // 11 / / / / / I I \ -_ �\\\\ \ // �/ "k' 1 \\ i// _ / \ / i / I \\\ � /// - -_- /'i/ %// =-- g \ \\\A \\11\ \ / I ) - /gyp // //r�i/' / / // / 11 I IIIIII _ \ / / // / / I \\ ///;-- \1 \\ \ / V - / JI I l 1 / - / l/ /// /i " / ,, / III ) ( i 1 \� -, \ I I 1 /I I/ // l/ I \\ i/ - - // - - w1 / � // -'\--/ / /// / / / / // / V \ ( 1 \\\ - \ \ \ I 111///// / II I`V1\\ %� / /// - w1 \ �§ / / ' / \ - / / // -♦ / / // / \ , , I 1 \\\ �\ \ \-- \ 1 I IIII%/%// // If l 1\\ __ - /////___ 1 19 I o \\\ \\\ i ? / / / / / / / / / ° ///// / IIII 1 \- - \ \ \\ \ 1 I/ l 11 1, \\ � //- _-1 11 /i_== 1 191 0 \ \ \\\ ?; 1 °"a, ,; - / /0 / s"V / / //// / I I 1 \ \ \ \. \ \ -1 \ �1B1 I S A I I I I II 1 \\\ /- _ _-- -- \ / ,, -, , I I / \ \ I�B $ Ill/,I {�\ - J ST {.14 / \ / // / / \ \ I I _ \ / .$�/�'/ / / /j // / // /i/,/ / , / / \ , ) , 1 \ \d I \ II I II I \ `/ _==_ \ / ) ) 1 1 1 \ \� I \ \\ 1 II I V�� / - \ 1 \ \ \ \ S / - I / _ / / / / // / ) 1 1 �� \ \ \\ 11111 I. + --- - // l 1 Illl \\ \\\ �\\\\\ I I ST10� x,x - / / / // / // / / v I I \ \ 11 I I _-----l` \\ LU / V \ /�I �.,,i - i /'� ' , l / / l / // / / / / / I / / / 1 \\11 \1 p x \ \r l /' I 1 1\\\ \\ \\ 5'� '' < /�- / / / / ��/ I \1 \ !) \A\\\ ni / i - I / / / / / / / / 1 / l / / / / \\\\\I�, 1 \ / n� -,� /// // / / / / / // J / /� / J \ 1\\ 11 =�i ��- \ I \\ �30.� _ / / / / / / // / // / J I \I \ / \ \ -'�' 1--- - +v��0 � ' i /i / / / // / / / / // / / / // / / ) ) 1 Ill \ \t �, \ -'/,4' / 1 \ \\, -x' �i r♦, / / / / I / / / / /// // / ) I / 11 \ \ / I / ( 111 1\\\\\\\I\�-:K� 1 _/ x � / /lo/�_%' _/ ( / / / / I // l / / // / l / / / ( //� / / / \ / ,4 \ I / 1 I 1 \ A \\` ST�� _- a� 'f/ �� / ( / /i / / // ( / l / // / / / I // / -/ Iv // / // 1 A\1 \J/ �, \ (\ � k� '' / /I I\ ;�' ( ' / 1 1 \ \\11 \\;o= tiI / I " - ,i i/ / - _l /� / / / / / 1 / / I // / �%/ /IIII \I m 5, ---- l) I I / 1 \I �\\\ , \�� Ifxl - _1 '/ //� / ' / //// /// / // // / I I ( /I / II l I / / // / l1( f'// / /- -r /// /� //l IIf �m --- - I l\ \ �. //''_ 1 ♦ l 1 ( lI/ II / 1 °/'i'/ R �' - ( ;�'�� /// -- � I / / / / \ I I I \ / // / / /�- / // / /� I/ , \ I ) II \ ,\ �\ II11 \ \\ \/fxU \ ST101+T < "//// /- _--- `� I ' / // / // / / I \ I \ / // / / /�- / 1, /// / / ;I (1 \\ �\ \ 1 /J/ 1\ A \\\11111- -<\\ \ fI/ 1 --- ,\ _ // _--_ / I ° " - -'/ / \ \ \Al - \\ \\> I ---- R. / \ I I 1 / / / //1 / / / I/II , 1 � \ \ \\ - \ \ \� - /i i =-'/i// _----� _ // I / / ( \ \ I 1 I 1 I \_/ // 1 l // Il ( / '// 1/ // / / /I I //III' t; °3 \ i \ \ 1 \\\ \ \\ / . z_� __ /i /�i 3� / \ I I \_/ 1 j I / / 1 (J / -/' 1� / l ( I III �O� ��' \ '9p am -, / \ \ 1 \\\\ \ \ / / \ > -- -a te//i % /i/ / -- �� _ - -i I I I \ 1 \ 1 \ // l l / / / / / llJ IIII \ / \ \\I \\\ -\\\ / \\ , -.�-`-� '/i��%=--*%j - --_/ I I \ 1 \ J/l l 11l lI'//i/ / )� lJ / Illlllr 1�\ --� `--- -' lam/= - / I / I / Ill \ / \ " / ---- - / /i \\ / _ - I \ \ \ I / I I \ // I m „, I \ \ \\ \ I / --- -- -aro --- \ 1 \ / / / / / I m "I / \ \\ \ \\ //' i \,9a\( %` -fix=x-� - '- / / /// \\ �\\�i /'i' - - -- --_- / / \ \\ \ / / / I I / / / /-/// / / // III / 1(; D ? / I / \ \A \ \ -� \\ r -,-i _- z*�-- � / �s\\ /i/' - i ----- / // - � \ \ \ ( i / /I 11 / / / i- I+/ 1\\ col\ �' / I ,X �/�,�/�/ - / 1 / / / / A \ ,r � A _ v / / III \� / / /� v Vv- VAA VA T ��A\ � - /ii/ / //_vvv �' - -- -/� /� v \ 1 V A 1 A v- III / / �/ / // //// I >.,,, / / /� v V,,� v vAA AA ��AVA � '- //ii// A� �?�� -- - ///- v \ A 1 A v_ / / / / V ( / / -/ "raj ) k\\ \ / v �-v,vV\ VA // i�a�- A DIVA I�-___=�i//�%0%/ - __ _ -// \ VA \ � / // l /llI II / i. �v v -v A VA / '�lll =�/ / / - v - /-__��- \ 1 / / III i�� v / / / vV VAA / / �_ 1A / - / vv �� - \ \ / / / / / I I - V / �- �y1 / <- _��j��i/////%/ v _ �i / \ \ \ \ \ 1 v~ / / // J / I I / / / // // I 11� �� / - v / /� \ fi� -�/// / vA - - / - v \ A/ A V� lI/// --_� �/ - - - - / \ VA - / // l I v / IV II //' � vvvA \AA �I//�,,� ; l ��✓'%i/i/i ��/i AVA \ V AV A v // / / / l 1 II / /// I + ICI \V \ ,1 / 1 / _ v V\ VA \-� t -A�/�//- - sea -_-- \ V AV � / / III 1/d/ /l/ / / / // // l l / I / // -_ vAVAA\ VA A A A� �� ii�' �-~ ---/ - sa --'e�/ \ VA \ \\\ \ V /' / //I I Ill� l/��/ /l/ / //!f' //// 1�1t11\�111 v��/ l -- vv VAAV A �i`Av v I A\$� (,fi/% � --i,, e�� - �;�' --_/ A VA V A I \ v / / / // I// � / 1' , // /// / I I 1 v 1 / -- v v V A �i�r v �i ,\ iii /yi/� o �� (�__- %-==��i' AVA \ / / // // / :>/ 1 II IIII 1 v -�- - -- vvv VAA l ye \1��., AV lI ) ///�- ,-,,,-� - �-�<-__- -- �_- --- - V A A "- � / / / // / // / �A,/ / /// // // I -- / - i -_ -vim VA AAA G� \1�-_,1 �! \\ V 11+1 - ��v _-- -- - -- v ) \\ V v --"oI/ / , /// // / l/ / / // ,/ //r// 11//IIII w / ► • 1,-' ---_-= AVA \�O \ V AVA 1I - -i �_- ,-= --�,- -vim-�:--eu,- A A V A \ � /// // // /// /i / % // �;.. _ / \V AA ✓ V n v A r - / -� - -ti_r-��v� - 8 �v----- I A \ V A \ � / //� /l //� //�� r /iii// /� / �� / W V-V A �� A\VA �(\ ( �� / / / -- ems- - - v-"ice-� �- -- - A 0 v ---- / /// l/ / d / y_ ---, �/ / / / / / / \ -_ A, � / - - - - -/ - A \ ---- -- ( - _ A\ II I'n I V I ---/ / / - - A A _ - / / // / / // / / / / / i/ ---ze -\ 11 / I r,' V VA\ II u� A �� , / // //- _ - � - vv_� /-_�Av- - / \ V v- / - l // / 1 / ////� / / /i � �\ \I / �/ -\ �: A \\VA I VA I It / / / / - ///_� v - V A - Ire /// / / /� / / i - - �/ \ \� A\VA - 9 \ t / / / - - /// v --- A \ ----- I�� /// / �' / / / / - - I�'Ib - 1 1 \\ ��v \ 4 v 111 III IW f/ / / - ---__ --- // v - --- - / A v - / /�/ �� / /// e i %�% �� / // -__ - 1 / -�� W1, - 1 \\ "'v \ i \( \A 11 /JI, / / _- - - -=-, �--// /-Vv / v / _/ �,// / /i/ sz6/� � e�/ / / -_- _ s� li / - - A VA \ \AV\ M VA \ 11 //� / / / / ,- ��--' _ - - / A - --_- ---_- I \ \ / /r /lI / / /// /i ,-// iii %i Z --- f �� A 1 , / ' V A .�� VA \ VAV V \ / / / / �- -�- --- --- I \ \ _---� /� //I / // /-- `✓ //%i �1 �� ( l / /- vA \ \ , �� nr A A\ / J / / / /� - ---- - v --/ / v v- - ~-- �� -- - / I/ / / ice / �/ / �_ � v -� l l�/ A v� ��r A A\ / / / / / / /�- - _ - vv- / //�v v-�- - ��- / // l/ / / I I l// ; - v - -- - / / A\ \ _ / /i/iii / �=� v v 1 / v \-(1l% AVAVA \ v � ;'; �' V ' 1 / /) / / / / // - - - v / --' V / / / // �% oe - ;/ > Vv / l/ v �)lll// VA 1 v t I A 1 / /� - - - v v - / - --/ I A -----/// // / // // � '*i-- *,�\-cam_ _ V� / ' /\\ 1 Vv - 1\ 'I i A A // //// / / v v - / - - - _ -_ // J /// / / ////// / a iii /� / \V\Fk�; b - , A 1 , A /l /lf j ,.,(l / - - - - - v v 0 1 1 - v1 ul z .A�1 l / / / / // - v - - - - _ --- - // / // /♦ /- / / � \\ 8 v I- / //� v v I 1 1�A - �1 ul I \ ! / 7 k1 / // / v - - -�--� - -- �// // ////// //ice, , / �' 1 *\AVA F v 1% 1 / G �, - i v 111 v �I �� 0 1 V I / /i / / / /1---- -�v / /`� �--/ '/ / // / / //�////// p / = / \Vv ��F; I - /� / - v � A\1111 vv �I1 -`' A�iII V I 1 / 7� / / l -- �v �� /�� _ � � '/ / // / ///ii/�/// i %� / 1 \V��x - - , It \1\v vv ��I/ tl I j11/ ///// / / // /// -- v -' - - - - - / // / i �/ �' y / - ;_�� oe / I vvv- x I %// i/ V Avvv III 1 I l / // // / // /// ---_- - vv / -� - -- - - / / / //%/i / //A / =tero� /. A�v- I % N � _ i v vvv -\v- l�l ..I 111 I / /� / / - -�- v / � --=- - --_ / // / / // /// ,� _ /� � ��v v v �v_ tll I / / --= _ ,ram / / vv �x /// / \ v v �� III1l/ / / / --=- v- v - - v - _ _ / / / / /� i „_ _ � ,_ / ✓/ 1 v� vx ///// \vvvv �� / / f - v / / / /l //ii/r�� / / _/% X-* �a„ �� / 1 \ �v\ \ / /_� C) //// AVA Av A v- I.../d� I / / / / / e / // \ / --v - 1 / l / // //� _ - -* � / AVAVA =� '�A �l ///'i'i i (,/vA V A \ � 1 ��/ 1 1 I - II I�\ l l / /i / / 0�/ /// -- ` v \ / -v - 1 / / l l l /// //� ,_ ��- /i i- -- //,-/A \VVAV -v 0 ti= ,,,. �. ,,.;�I I GL // 111// / // / o / - wVA \ A / - v � - V , /- / 11I l ///// / - -J VV A ,� ///y�///� - // \\\VAV O ,Sy I / // / // o / v� AA \ \ \ / -� �� A /' -/ I / / // �i�� / -J AVA \ � , N ea /(/ \ \VA Avg ��; - II faI / / / I / // �a -� v v - � - / / / > /, /�/ � i / R \ V VA II //iii ee"/----- (� AVIVAV Av - ;� 1 ✓�1 6 / / / / / o / Vv i '- - -� v A ' / /// > //// /� '' -=��_,z / s AVA\\ rlll //�� /ii / - piV A \\\1 A � fl \ III Ill / /i / / / // // / / / vAA \\ \ v,-/ -- �-- v A I / / / / // ///J / ---� / ( / /- 1 Ill //ii�i� / �oA \\1 AA 11 A II I / - / " // / / - v A\ \ v� / - -- - - I ' ///// �� °'/ �� _ /� / / 1V //ice/iiiii �� - / // / \ \ 1A v A Q �, 1 VI IIII I / / / / / / r-- 1 - - - - v \ V ( < / /// ///// ♦ // l// -' --- / /; - -� VA / / /� / �l/�vAAVA 111 1 v �/ l 1 Vl ' 1� t / / / // // / r A\ V / - -- - - -, v \ \ 1 / // /i/ / -' v� I - �I II I /////ii/ co �' ti vA A v vI ,xIi, A1vv 1 IIIIII/ // / / /, / / 1 1 A \ v / ----- ---- - - / --,/ ///// �/ ) r �' ° --' - ---v I I 1.", / 11\ v!I Il /�/i/ -�/V/ I v 1 v A \� w �j / / / // / i 1 111 / ----- - - - - / -e+o // //,//// " / �) / _ - b - , AV // / / /� -- //\� A \ \V ty�- i� I VA'\ Vv1 II / / o // / r A VA / / -- v v A \ \ / / //� ��/ --- - / / * ,- AA II //////' - /� - // % \ \VAVA \\\ - 1 ,1 A \ ) / / / / // ° / // J r� A VA \ \ \ - ----- -- � v v \ \ \ V 1 I / / fi /�i/ __ - \\ � , / IA 1 /I �// � ii 1\ v A V I v ll II /// i //�/ / / / V A \ \/ / -- - - A ( / // l / i - A\ / .� V // / i/ \ V v A 1 / �/ I l / ///l / i / �s w V l Vl l / c / \ \ 11 �l / /// / / / ° - - - vv A \ V A V , / �// , �' ;,��/�� -ter_ -v V V / A Ill ! / ��/l AA I I I v \ '� I i Ifs v 11 III // // / / /// / // , / 1 1 \ \ V / �� ° -- - vvv \ V A \ I ��/ C/ ��/ i� z �-- ; 1 A ll(l / "//% A �€AA 1 1 11 II A v yr L 1Ai III / II 11 / / / l \ \ / �- ----- - - - A I </C �: < %��z- w VAV A � 91 II(1/( / % A V A v v V III ) I( / / / / / / / V V A / �� -�--- - - V A �s A I ( I ( ( � B _- '♦ �( I / �l 1( 1 ( CID / �/ A \ - � Ill V> / II `PII ( / / / // / // / A \ / / - -- - v AAA \ V AVI � 1I; .� °��1f ,_ . -Z vv gV /II V ( / / I� V A I - v-\ f 4 VIl / III i / / a / / \ \ \,/ / -- - v v \\AVA \ � 1I / � _ - " S / JI ,i \\1 / • _ = ----I LV 11� A \ VA i / �// / / / I A \ A / ---- A �/ ///;_ --- v AV A / / ,/ I1NA\\1 l_--=-- 'L � 11 \ \v I JI \ vVVA // // / / / / I / --- - V V l f. / - / /� --_ `V 4 / - IIIVA1 - _ - - - - - - II I (/ �A vAA Il II / // / / / 1 \ / -- - v v AA A \ I1 !� � // _ - - vVA \\ \ � / /// l / II) 1 I1 ma x - -- - - - Il I i v tI I / / - --- - _ -_ __x= - - _ _- A / \ / / I 7 - - - \ I I( \V I 1 I / / I / ~- vv v A \ \ \ V 1 1 I Y /% - iii - * / l j /� (I)I IIIIII I / ' x�x'�_ VA v VA\v /II I r // // / / / / A 1 1 I \ / / /--� - -v v v \ \V V A \ \ 1 I l�Ye�°iG �(/, ii _ �� A / l -_ A - ��u \ V 1 I I III / / / / / / v I 1 v I / _ - - -v A�\v v * / / r 11111 Ill �tx = _X� \ v v v I r // // / / / / A 1 \ / / - v A v v 1 / V° / I / v _ _ �,v I / / /i/ ( ,-7 /''-Za, - -- v vA\ \ V A //// v IVl( I IIVAVl - vc lV A v v-v\ � 1 IIII IIII I / / /� / / / / �a°/ v V 111II // / / -v ------�v vvvv \V A \ 1IIIII1/e�� 'a �� 'a -- / / v I, III �Al I I I 1 A �,- l II / / / / / V V I I/ / --- - vA \ \\ \ I / / �,/ / /// - --- v 1\ vvvA\ \ y / / / l �� I\\ �A V 1 0 v A\�'ri l , v - II I l/ / / / / / / A I I I / / V A \\ 1 I 1 / /Ia/ //' � // ��-- -__ v Q V 1 VA < vv� vv v VAv ��II 1 II II /P / / I I 1 / - _ v�\ III I( //i; ,� J /rii� _ -- v vvV Il,, /,/ / / VA V _- v� \ vvvv v v �� v / t II II I /�/ / I A /--- __ vvv V I I f �/ /// -J �� ///� - ~--- vvv + / / / \ / // A \ v -v - v I v v I / / / / A \ \\ I ♦ /// - v \v / A \\V AVA \ // // - - \ �� - \ \ \\ 1 I ( / - - �_ I l / A \ \� v A v v ,�A vv IIIJVI / / I I / / / V I / / - A I l /i� // �- _ ----v vv\ v�A\. / / / �A v / �- 1 v \ V v \ v , , - - - A\V A -v v A \ vvvv I IIII( / / 11(IIII I I 111 / / , / / / \ I 1 // - - VVA V I ( 1/ / ///��/ y '/ ///i�'� -�v. , �/ / A A\\VA\VA�\ / / v vl vv v III / m1 III I / / / I I / / -- - A\ \ \ /'i / _ �i/i/� _ -_ - vvv \VA \,, �/ / r I\ \VA0VA�A� / / / A vvv 1 VA vt�� vvv V I I / / / 1 I I / -- v V A \\ I / / �/ / I �/ / _ -�I �, � - �/I 11 r VA\ \ V • > / V A I A \ vv vv`v �A( I / /// / I I / / / I I / - v V A \ I I /// / '� _�i�i� --_ -_ �� 1'vvvVA \\� I I A\V VA V / I I V A �� v` � I II / /// / I/d III / / I I I / - - AVA I I / / /�/ / =-��if/ v� l \V \ VA / / 1 v v v 1 v, v III / / I d 1 / - - A\ \ I \ ( ��-/� - _ v v A , v AVA l \\V\VA VA\v / / 1 v v v v Ali v v I If 1 /// ✓i / / I I I I l / / - A I \ l/ / r /ii " - v v \VA \\ / 1 1 v -, V,I;n v� 11 /// /; // / / I / / I � I / / --/ v A v A V III I/ /I/ j / G - /-_ - 1 v \�\ \,',.-1 I / A\V A v / \ \ - A � A, v tiv� I1 / 1, / / / / / I � / --/ v A v A \ 11I � / / -/G - -_ '-- v v � �'�'` / I / f / \\\ \ � \ V 1 V A v v - v v v I I I / / -1 1 I I / / / _ vv 1 11 // /i/ - -- - `'a v v -v v A / \ �� / 1 A v v v- v 11 IIII II l � �1, l°� I I I 1 / 1 V / / _ vv 1 I I 11 f/ I 1< �� /i/ r - - =� v v - a , �� / \\lA\\�� / 1 v vv - A\� V A1111 11 // / / I l / f / / / vAA A I III l l/ / �7i / �- v 1� AA\ VA\ V ;', V I �/ r'° A1AI1 \� - / v v -- - A\�, �, AVA V II l // I / " l / / // / - I A vAA \ I III 11 /l //- --- /' - v �\ 1 �� -_ V AI I >; \ V A \ v v --- A Iv AVv II III II 1 / III < 1 A / / �_ �\ I I IIIIll �(� <+ // /� ��- / �� \ vV A \VA ,� ,�� *<, , A \VA ( \ \ \ v v - A ,v IIIIII l/ III / I r - A / / �_ v - I IIII / i // �ab�- / _ -_ v ', V II 11( \VAv� ai J A \ _ v A 1\V1 l I III�III I / 1 I I 1 1 � / --- v I �v \1 I I /II 1 II 1` /////,- / -- ,- --- v � � V1vA 0 I AV � A 1 Al 1 11v J V A \ v v v AVA 1\V I �L1,, / I / 11� /' / � o V Al I /II / I li'r/ /// // �/ / v� � v , �� vV Fv v - /� A V v v- V A \\ 1 �11\V`\V A\1 / I I / I � I V 1/ / ' eg v v A l 111/ I I /// /� v--v v\ `�\ 111 1 A VAV,, \V V \ - - �, 1 I I A \ v v / �/ - --- v V A\ V A v v - „ \ V � 1 1 / I V A / - _ A III I I I / l \�` _ // / - - � - V A VA 1 1 x \ y vv \Q \\\ / I /�V A v � -� I v� V\V c A\ 11 I I l I A A ✓ / / _- v III I I 1 11 I I/(1 / (d\ _ /////i - �- v V v� VA'v 0 \ v v - - - -;, A\ 1 1 I A v v I I I /// / - / --� - v v V I I I I I V 1 VAVA,,,„ v � .- A 1 v A v v-- - v V A \V / 1 I I I �,,� �r-� v 1 \I h ;l �) e //// � -� / _ - v v \ �� 1 Vvvv 1 A \v l A v - ,o AA�V A ��\�\ l I� I l l ! I A A VV1AST ROC PILE E� V III II I \V II 1 V 1 \_� �e / '_ - v VA A 11J I1111 11 ��VA v� ` )1 '1 - 1 ` v v - VI �� A �� \ I I / A A VVAS� `TwC PILE AREA \ V III 11 \V 1 IT \_�8�// ' --/ _ ` VAA \ � Nk y 111v a) � � v vv-- A \ V A \V AI vA I 1 // I A \ v / v v V A II II 1v v e /////// / ,--�/ �� vA \ I II 1 AVAVA\VVA v� y Avv= v v A s ,A / A v A v- // // / v VAVAv / �11 / / \ _� / / V A 1 \ / / / - 1 \ - -- - - v A \ V\\\\\\ I l I I III v_� / / A \ II 1 Vv v a / / -- \ \ ®,� , v�V A _ - v A \ �V I \ 1 / v \V `\\ _ ///i / - AAA I VA11 1 111 �1v I 1 -- v v VA \;cAV' 1/ I 1 I / I \ 1 A v 1\\ 1 \V 1 V A F;�/i/ / _ AA \\vv_ 00 - - A - \\'V \�A VA11 l i% I / I r l/ �, l I I I 11 v- - ' �HASE 11 \ \VII \- - i / / - / v A \V \-- `- V N� __ / / --- v r_ - v V A ;� \ \ l l 11 I I I \ V / V A \\\ 1\ A\V A Vvvv_- /////� /� vv VA1 VAA\VA II // / v / --v \ \, V A � F�01 i // Ill 1 � llI I \ V v-�' /' - Pi�SE 1AI , '� \ I 1 A\V11\ \\ \\VI\V A _ / /' %� ,-' `t vvAVAAI �\ , // / / \ <--o� v V A v � \V A ��A111111 II I / I 1 111� -, ' I IIII \V A�X,-1 //i// /� / \ VvA 1 V \VAVAII IIII 11 11 // / I / \ o-p�� v VA v A\ � A i I I I I I 1 111 - �� ,O // // /� AA \ i� /\ n \ ll \ _ A I \ \ \ Vv��- / / / - v \ \ Ill A u / ( / I 1 A A I / III 1V A\\ �vv��F� / / / / _ - A VA VA "OJT-110 /l A� O vo\\ VA v ,i� VAV ll(\III) IIII / I I II 11 I I I 1111 �-\ --_ � - % I l % / / ill V t \ A -♦� / / / ----- A \\ VA � VAV11 \ 111 II I' � / ( V0 O v�\ VA v m \ VA �1V(11111�� ' / I I 1 I I r� _� _ \�\ v-fir/ / � ---- v A I/ \ - VA\V I v - 1V - / /// _ AA\ \ �- �AA\V F ' I v / ) / / / /,lI \ V \ \ \ - /// / / / v \ g !I 1(J / � V AA I II \ ti \1 \\ � �I I II I I I � 1 III I v - - / / / �' / , II II I 1 1 \ _ ,� - - 1\v -��/ /% - � V�'1 I v 1 1 \\\\ _- / / d v- / / / v \ \ YID, "\_�I !( I 1 P / A I II \ w �,I \\ � I I 1 v / / / / / / - / I I I I I 1 v �/ / ' -, - v \ \ a- !i ' � I A I \ \\ 1// r I I I � I III I --- - / / / / / P II 1I I 1 \V, �v --/ //j// / / _--�-- 1 \ V A\ 1II � I1 \111IIII ) A 1 \ v ; � I1 \A\\\V I. � I / - _ - / / VA / /- - II v v�l I I v ,� V A\\\V / I \ � A\ I1// r 1 I I T I II I -- / / I I IIII \\ vv -/ /i / / - II I II111 V A v� V 1 1A\\ I I I 1 III / / / / / /-/-� / / It A�vv- // / / / '/ - A I I l 1A \11 IV111y�x 111\I IlllllllAVl / v A I I II v 4 � i �AA�AVAv ,111111 // In I I I 11 // / / / / l �i-�-' // l If A �vv--_l/ j/ //// /,_ A I I f_ b11I\\ IlllllllAll 1 / yV v vv I I I I I �� vvv � � / If I � I / / / / / / ' --/ / J I 1 v v v---// / / l I / '- ) A I A\\\VAv v 1 I / I / / / / I f ��\ �� \\VAVAvvVA\ / 1 v, / * I II VIII / II I 1 I 1 h \ (- / �� / / / / I -_-� / ( / V I I I / I IIII 1#1 5\\V� A vAVA\Vl \ v / 1 II / I 1 \ / / / - v / I I I I �1/ 1 _ / I I / / / / J v v - // / / v I \\� vvv V / i/ v I I � I � , I I 11 v / / / / � I l / I I v v - / 1 / v I / \\ V ^ �' r i/// v - / / �� ' \ 1 I IT//1� //// 1 1 I IV I I V A AIII V / v / / / / // / - I \ V A v ----/ / / I l l I I / *ITI�� *(1 VA AVI V , / /� /// i / _ /� ' llll I I 1 I A A AIII V vv / / �� // // ' - I 1 l V A v ---_/ / / / l 1 1r�G�1 VA A`- ! /////// -- --- 1 II o//// l / /// I \ / / \ / / / / / / / \ - / l i l / \1 \ a - �� K� E I \ \q / / / / - // / \ - / / j \ \\ �\ 1, / / III 1 //�// - // / / J/ r \ \ hI 1 a / // / /_ / 1 \ \ - / / / / / „� I 1 I1 1 1 \ \ / _ \ \ - - / I �f} „ / / //I \ //% // I \ II / / / \ / / , / / / , G� I\\ \\1 _ „� / 1111� `� - I<r f �i - /y / n \ 141 I / / /'/' / /'- I/ `- -/ - / / I / / / l I III u \ p1 \\ ,._ �� l/ Ill/ll/l -� --' / / I�i`ts ! //// ( Ill( / 1111 I I 1 I I / ! // //i / / / -- \ \ - / / / / �.�/ \ \,- ` I _ / II l --- \ ` / b / I \ll - gyp } \ \ \ \ � / / \\\\ x� / / // / / \ \/ / MI-/ / // //// / / /- \ \ 1 \- �I a /III I \\ \1\ \A \ \\ \\\ : . „ ///////// / / ��i g 1 pl / / // // / / / / - \ \ I -- , //III II11\\\ \1\ \A \ \\ \\\\; X �; Ill/Ill - / ( I \V -' /1 I 1 I I I I \ / / I qj / // / // /// / /- _- / / I \ V II I \ \ / //////// / / � -I I / / I / / / //// / / / /- _---- /„y, l \ x, / /l - / / i / / I / / / \ / r I 1 1 11 I \\\\ \ k;", //// -I / / j1 / // / -\\ --,-- 1 I I 1 / / / L / / /� / / / I \ / / / I * / / / I // I� I I I 11 I 1 I \ \\ / (-1 / /// I I I \ / II L ' ' / //' ( / / / I / \, --- // II I / / / // / / /- / K �s 1 I I \ \ // / // \,� I / / / // / / /- ---_ / I/ I I / I 1 I \\ / // /// / \ I � \ /i l \ / / / // / / /- Asa J/ / I II / Ill/ / - )/ it ,%�° / P / / I / /d / / / // I I III II/ /// // � / / / l e / / e' r / // / / - ---_ /1 - �- / / // , � '/ /j/ I / I/J I II 1�/ I /I I I /1 I III II/ / / / \ �i / I I y�, II /�' %/ 11 III / // \ // '/ // a/ // / // /' / I I sse //i // / //r I / /J l j I �j °�I / \ 1 I / ! �// \ i / / / / / / / e // /// / < / / ♦ / .� ;�;!// / / /�- /j/ / I l / Ill / //I/ll I I IIII /////// V I / I / I i / 1 / / l / ,ems /-' //// /' // i /' soo- ---- /I / -\ ♦.// 11 ////' / // / / / / // //// /// IIII/ 11//// \ \ \ 1 l \I \ �I / / /I / , / / /�/ --' /// ' - ' //" /--sso ---_ / / - \ ♦♦ / l *, / )// U /// // / /l /ll 111 /j////lI ( // /// WAS�EI��C \ l ,i'* ; l !� �°- / / /I / J / / / / / / -- l l 1 / / // / / / / ♦� - /l \ // / / / // / / l!l ///////llI 1 /////l/// \\ \ I \\ \ l / l - - / / - / a / 1 / // / /i// / / - - / / ♦ -- / * ,", / / / )\I III // ( ///// / // /, // I J /// //o// / \ \- / / '/ `_'i / , o / ♦r' � // / // / / - /// / // / \ \ A \ \ \ \ / /I 1 /-' ' � / ll / / ' ',1' / / ,/ '�/ / / // /' /' / / / ✓1-11% // / A V\\ I 1 // //// ! I I I(////// / %i/ /i// ii//i/ T Z/QN Ci \ / 1 '/- ' �' (1 / ♦�r/ ' /' \' / / / 0e'i / / // /' ,-' /�/ / ,d♦LL �s / / / // - A \1 I I // / // 1 I( , ' i / //// / \ \ / \ I / / I- / / / / --- / / .-- �// / / --- // / // of/-/ I l/ / / / l/ / //'j / /% /4NQ CCi � R�A / /- \ / - / i �' / ///oi / 1\ / / 111 / /Ill //i //i/i�// l 1 \ \ \ \ I° I / - \rJJ/ / /' J -' / 'ii' _ / l / / /-----I j \�- % / /// /l/ / '/ lI III l /l I/// /�lll^� ( \- Ill/%/i/iii i' / \ \ \ \ 1 I° ��' / - - \rJ i / i/ -- / l / ♦ _ _�. „�' / / / I I l/ /// ( -111/i// „ // \ \ \ 1\ \ / / I l i / / / / / ''I--' /// / / / / / -\ / I - 2 // / // /// ( ( --�_)) \I � \1 \ 1l(( III/ 1 - ///ld/ ///i///'i i// \ \ \ \ \ \\ \ `/ / - / ` \ - -, / - / /f \ i - 9 / // /// ( I - - J & \ \ 1(( ///// /'/ / / / +-- �, / // /lI( / /- /)I tl/ (1 ///l l� /-//ii/i Z, / e 11/ / - ♦. 4 / I / 1 - / �i/r / / � 1 I \ \ \ to -\ \ li / / / / // - / / //, c I I / \ --�* �4 1 / I \ \ \\\\\ 1 / / // I / / / - ♦ / r'' U // N��ESf/ ( )I \I A) / //// // //////i/ > 1 1 \ I /' - ♦ l / / - / / / -- - I - / / �: / / e/// //I \ I( ) I/ / / /////// Ax/ /,,i � , I / \ - ti \ \\\ /// /// / > I \ \ / \ / / - -J/ --' / / -- /// /// I \\F,l( � // 1 1 11111 II///// 'iii////%/i 'i% / I \ \ l/l - 2 / - / / / -J/ I I - ♦r / - ,�-\ / l \ 4 I //j /�� // \ I I o * - - / / - - - // / / / / I \ /. A / \ ♦ �. / / / - a / 1 tr=_ / -_�� S��✓PHR�U(�11 1 B 49 6E Lhf�E� Ii g �MEf� /oi 'j'j' �,% / A \ // ° /// \ 1 /1/ - '-*• � / / ) l / i / / ////' -- A A / / / ///-- J I / I ( / I % / /(/%-%I///,'x, %� / - A V �/ i v `'�' / / // // - l / -- ♦i '- \ __ *. , -x� / / / / I I . / / /II / /l / /�� / // / V / �, / /// J ♦��• * " , - / / A ♦ - /';/ I TEM. / II I /-- / I / / //////// // /j //- I 1 / / /// - � - r / / / / / // v --- / � Y -_- / l / / / (- // �// l/l/ I /= ll/l //// / / ,/ / 1 1 I 1 l/ / -/// I---vv-- � *a" y ,�/ // / -� 1 ASV \ �+�+♦� ---- � / Y - / - A /��/ I / /�Kl fSF� < /V \ 1\ I l / //// \ - V AIA -- _-_ ' ' -- -- _ 11 f /' // I I ( -�� i/i //llI r l/l/// / // // //��' \ l / +�.! //// - * / X!% / --- --- A ♦ - �'' _ - C1RP RAGE Ad ASV-- I�1 �4 \ llI �i / /// /_// ��/ _ - - ) / A .,♦ --- / *,"� /// // -' '� //I j11I -i, / /l A 1111//////////l////// / ) A ( / / / /ram / I - ,�� - /II / �/ ��/ �I \ . 7 -y �� +•k_ s ��- /ANb, EaIMM�-NJ1COIV-FT QL E��i} ' �ETS<} I�T ,c( IV T,Fi, ° I / / 11-- / / o - l / / / / / / �� / _ _ __-- V l / llI' / _ *% - �, - 4 / - ,i,fVtYl�l PERMIT APF�LI}� / / // //// // / / l / ' _ -'� / I I // l l l l / .i - ---- /"'/ ' // ' y ----- ♦♦! �;,' �� i ,�� --' -3,./TEMPOP,AI�Y SKIM INS( IAND�SEDILJf 7 �/S� t g� - 4j _ / I //r- / / 1\ \� /p/, / ///// l III I/ Il I I / / //// / / a*'r // i; *' /� / , f'� ee° ' / ! / p /// �� I A + - - =- - „ / / / //� /' - V I - ;'� <- X1 / // I I I �, v ' „'// / R MOV2 / / / )/ ��/ /. �LY B-2dS - / _ - I --- �'/ s+e I1 II T / / / / //// // / II L// / - _- / r L// y� // - - / - ♦ �- / s+s // / / `QB /'o /f++'`tom - __�� A // /iii V - I / ^f ;Z_ C � / -- --� I / / I I ) ( I / /// //II II I(lII �- / // / / / /W,- - - / /- ��' - -- DtJPOfVS f4BIL'I fCON pSEEDWG KjATE I �i /// / / -v ;�� ;-- � *,� / / v - -/ x _ + / / / / I 1\ / /// / �l / - - ;f' -- _ 1 / / +�N _ v - - *�> / / - '- 'DIS URBEDsARE O STORM TER RUNOFF F f�1 I�A 1 �t CK o / A - _-�� (� -- -. / ---' ~- / �- - i - - w - - /' //"EI EI'SCO OLL h1 S S CTURES O �M TER / / / / / _ _ /� - -� - �. O�I�hC� ISI�Vi1 �L TO E P AC I \ / / / =, _ /v A- = M ///j 1 1 ( t s=%f" / / J i ,L " i//� '� I I I \ o / "/ ' ( - - - l°, \j�� / �'S' / / ' / �/ Z \ - ��2�=e /i - - - ---��- .A=/ / v / ♦ �B-32S-/ I I 1 1 �a�l, / / / -///�I$�UR C�I4C / 1 /I / / J/////////I I 1 I )I I I 1 1 V / A / /1�.%/l _ - - `' ` 'i ------ � - � _ v i �� B-325 / I �,�� 7 --/ ,PI/LE (F/F FROM _S�11Ey �J, fS� E T F'W�gSTE V / I _ -x z' _ r// - - vv w,-� /� _ - v - - - / y�' / / / / ' // / I I _/1, / I ( / ��,/Li/i//; I,I I / / _ /iii --_-wvv ,�_� v y ,�E- -�- / �+ %� / �/ / /// / �) I I �C/ IVITIESO 7yS�J i ' / �'FI�� - -n -- _ /// ," ��- -w v �� -- -� l v, --- ---' l I �' i' i' / / �'�- //�� ) ' _� ////i v'- - - -----' �7T, / /�s'°/iRO F<PILELIMITS. / / 11 'I J _ / / VA - /' / - =1L /� - VAA / n / -j/ - /// / I Ill / / / sv vv v o'� - v - ---aso-----' / � l - �/- / - - - - / / II Illl / / / -.� �v Vvvv /� ��c v s I - /// i / - --- --- I l l / A eh/, _*c-- vv - -/ - - / / �s / - / / / ///- � - i / - ---- I / // / -wee/ -� yai_/ *� 1 � � - / / / ///-� - - 1 , l - - I.l(Il.l . / /. S;-inA\ - // '�" \ -8 1 - --- *' / / �- / / / / / - - 1 i ( .� -/ ./ /1�1(!(.I � / /, ./f�--�nA\ -- '� // * \ __-- '_/ 6" -- / / / 'i^ _ /-/ � 1�_ - ;x,vv; / I------------- *;', �, -_� //// EXISTING CONDITIONS '- % - 1�_ - __----- --�, ///// / / / TEMPORARY CONSTRUCTION ENTRANCE ��v1 ,- /' ______-- // „ =-7 / , / / / / / _ �,1 - -- ' =ti '/ -__-- // -y / - --/ , /- // � / / 1v '�� / / ,< /_;///// , TEMPORARY CONSTRUCTION ENTRANCE !,1 ��' = '/ /' / EROSION AND SEDIMENT ' ' / / - --- -__', / '/ I , v_� ,1 -- - -- �__ __ // // /, WITH SILT FENCE LOCATION AND / / / --- - - ---- / '/ I , � v_� _ ,,1 �o _ -- �-- - - / '/ ///' / // l / // ///'--'�'/------- // l l 1 /%�� 1 �c�- - - ti�_�-- �� -- _'/�"-'- ,- -- -- - '%/' i-�' - ---e3e - /// / j/ /� l / '/ /'/'--� i'/` ---� // l / ) �j/ I �` - - /-- l _---, � I � ' - ' / ,/ i / 1 / // / J/ J - =___ �_ �_ - - _ =� _ - / 1 / --_ // / _ --_ _ - - _ � === CONTROL STRUCTURES / / / _ / / /v _ - _- - v --/ /� _ - ��-- -i/i/ / / / -ate / / /n - - vv - -' ': _ - ��_- �i/i/ // / < // / // /�s /-- -_ vvv -,�= -�� - - - - LIMITS OF DISTURBANCE / /, // / // --�zz_ -- --- vv _ - - _-/ / _ NAD-83 NC-SPCS = 01 U N O N 3 W p S O 1-1UN W --I \ Cn J (n O W � O Q W O O � E W .. W O 0 = = Y L W = W W = Q O W J 0 0 O 0 Un W � Q V Z Z Z - I U Q W Z W Z U JCY O = aW o� � � o U O 0Z 2 Z WZ W = H � O J 5 Qv H O W Z Z U) 2 O Z p I" O W Q U FOR PERMITTING ONLY a O 1 hereby certify that this document was .`'%`� ''r. prepared by me or under my direct personal �` Q` , •.SSA.• {f r,. supervision and is correct to the best of my .�0 O, ; i p knowledge and belief and that I am a duly Z Q ��.F licensed Professional Engineer under the = SE'4L = SHEET NUMBER I aws of the S t 'orf !or h C rolina. � . 048820 ignature) i. , ' `'`��.` CS-1 Date: January 15,2024 1111` V$f'*\ ,%' Z :) ' 10 H J C _ 0 STREAM CROSSING NO. 1 PLAN VIEW = ' - J _ W / / ./, / / / / ��— �' � /i � � � — � > 1 // � �j////, / I/ / / \��V A\\\\�\VA II 0 200 400 600 � ��%_'' / _ '- ; / / / / � I �`i / / / / 1 / //j llII I I I l l I IV A\\\\ \\\V I Vv = � / _ �- „ ' � � � � I � I I � 1 \ 1A jl I A\� --aoe- /��/ >/ V A\ 1 t 1 A 1 1111 I I 1 \ V A V A // „ 111 I I I / / / \ I1111 IIII I vvvv ; / , v V I I l \ \ 1 \ �� \\ SCALE 1 _-200� \ \ \\ Lu ,. / / I v A\VAVA VA�A ,_ , / n v v v — / 1 S */�/ / /— `� CID ;_;___ �i — � � > i C-17 II/I / __ - - � �I lw1\\\\\1 \\ �!I/ / IIII/ 'xl ,,%� ( ♦ \ _ \ I /I / // I II / I w , 111vvv vvv ` v� wvvvv ` x � / I I, ST1 ', / III v 11 vv= -- - - - � _ LEGEND STD-+ / I 1 l I � / ST10 -�' r,- -- - I / / �' ' / / , v I I I / I I / , / /, /, / / ' 11 I, vviv� v A. SEDIMENT BASIN DRAINAGE AREAS 1\ \ cv ASSOCIATED WITH ENGINEERED COMPOSITE LINER SYSTEM CONSTRUCTION. o ll \ VAVvv�� =_ � --_ _ v— � - - — // lam/ 1 ��,Il o \ � \ I / I — � v�� — 1 /, -/ �/ ~`��\ v <( � VA \\\ vA �11A I I ) � —asap _ l / / v vv �/ / ,*i � �" � 11 � — /i //� /� , \ / \ VA1*I�I / �� SB-3 7//l/�/ /%/ i� i� �V \ \ \ I 1 �x / / __ _ — / / 11VA �� l SB-4 I v \ �x�l III; v III Illll l ��/ // /// /j// / / / A \ / — v v %v Il I II I v vv Ihl��l I 1 �1\*�` AI \ J�J �/ 1/ - - - - = y� - -� ♦ I \ / � — �. s- � �o-i— - \ / / � - - - - - v � P1 r _ -- \I // , ''�� - - - �� / moo /lIlllA) - ---- - - _ � XX =xLl� r \� v v vvv I I 1 I li 1 /// / / / / / / / A / v � vX�> I \ \ t I v v \ III p �� III l / / / ep / v A I I \ — v v — — -- v v //, �� r 1 *;j�//// r �� III II I IIIII SB-5 \� // / v A \t vAv vv Vv� v vv ��x,� \\ �;.� �— ll II I �� l�IIIII I I I 1 �Il / / / / / / V I I I I I I / -- _ , 1 ,, r� ♦ _ / _ �` ,,, ./ \VA\ A \ � � _ — ,x v -v III I Ill / I l / / / I 1 1// / // _ � �= SIT 1 / �o S 6 / l / AIII l I � I � I A / / / - �i / , — '_ _ -- � v -• 1 � V ' a v \� I II �,�� vA NAD83 Nvv I / NC—SPCSR3GKPILE AREA # t-110 SB-8P 1 %IIIIII IIIII / I Io I I I I 1I — _ - / � 1b� I 11 1 v v — — � �� //�//// � ' � � — — — — V A � � ZLLJ Q S B-9 N D Cn , < a-12' HIGH ENV w SB-10 1SO L I \ l vv \ o / / / ♦ � / / I \ \\ \\ �x' w w o V-9 � Q w Q o w w C) = Q � 0- J �� l / ll lI I I II / I I �I II )IIII II / I ✓/ T= - � �� / '% / / // / // o N o WASTE ROCK, NOTES AN ACC 78$ ROA x / / i / / ) I I 1 ( / 1 / 1 Monitoring wells to be placed prior to I 1 A I / I ♦ / C� � / / / \ — / I 1 I I / // //�/ / disturbance. I / " �l l � / ♦ / / / / 1 I l — — / l 1 /l // ��/ii/i /�/�//// z z LOCKING GATE / ,*,r� T :.ix- ♦ . / �, Al /, /, , 11 I / / / ll IIII , , //,,/////, , z _ - /// i * -' — — 2) Engineered composite liner system to be _ i I / _r /// � _ - F / ♦\ \ \ I / / i / �. %// = �';�' / ! / / installed per manufacturer's Z recommendations. W /// /// /G/�//�/�*/P e.�/'��/..,/��/ :\i�a /_�_-�=` �`--_-- -- _ __ ,= 3�/�� -/-_//////i/;;- ///%%/;�__—___:_—_—_—_---_\�__\\v\ ,x„_/�// i — \i , ♦♦♦ ---- _ _ _�, —_ —// I + ' ' +r�_*S� ' ,+;+,, ' �/// -//////// //i---�—�°i/�///�/i//////////I// /l) �I—J\—_1-/1�1//—/—�I�J\l/f,/I Il/Il/I/J/l///�//� ///\///iI/I/l I////////i///l//////II/I/I//I�I II/l/ II I1lI�\�\/I 1�\/I 11II II/II (1I Engineered composite liner install V1 C13) Wrecommendations include keying in system at drainage area ridgelines and installing from —SB-./ OB-32S ;� / topographic high to lowpoints; hence the liner system install will follow drainage areas noted � z ,Z- on this figure. / ) $aa _� W / / - - 4) Liner system is estimated to take Q a roximatel 12 months to install. 2 '^ � pp Y z v, Q C� 5 In advance of Phase 2 construction activities J WASTE ROCK PILE ENGINEERED ) structural fill composite liners stem waste 326�1 _ COMPOSITE LINER SYSTEM p y ~ V — — — — — \ \ \ —� / — J / rock placement) a modification to the existing z H --__ �\\ \\ �� - , +, � ,_ / / - Z / , - DRAINAGE AREA MAP / / \\o� \c ( <;% \ \ — /// — Xr asa — \� \\\\\__— > �'— Clean Water Action Section 404 401 Individual — — — — 0 Permit will be required for the stream impact. � O WC U _ Q FOR PERMITTING ONLY a I hereby certify that this document was .' � ''r. prepared by me or under my direct personal �` Q` 55� supervision and is correct to the best of my knowledge and belief and that I am a duly ;Q �� F licensed Professional Engineer under the = SE'4L = SHEET NUMBER laws of the Statjbof !or h C rolina. 048820 tu ignature) 'r'l� " ' `'�� ` CS-2 Date: January 15,2024 `� << $f' � •' - � � r 11 ,� " " ( � - - / ' I, i � I / I, I i .. \\\ \\ ,� I� - � I � \ \ - - - � I / \ � -- - --- - - -- I � - - - I / � � r ---- / 1 .4 - --::� - �, " X, �',� � I I I f --- - I 11 � / ��\\�\� -- - \� �7,:� �-7,:�-� 1\ - � -�� -----�--,�---�-, / I, ) f --- � I -f! I -, / ,� I -T I � ,, � I I,,--� �, ) � f I PLAN VIEW �Iz ) � f 1/1�� / // ,�,,' )I I \\ �f� . \ - - - \ �--' , --�, /I \ \ , - -- - / -1/ / --/ / / , ,�,, \ " " -\ � /\\ /- 11 Z- -,/ - // _- Of,mk" - -- 0 300 600 900 �-, (,/ / -41 , �,t, --- � - - -6 / , e -- 11 I/ \\�\\\\ :t�, -/ - - - , - I - � I - \1 I \- / / �.Id / / / � ( I -� -�/ -1 , #C-,r�. 1�1� - - �-- --/ I \\ � \�/ � / / 9' z --- �1� '�' � f�0\\\\\\\ I I I - - IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII1111 ----- I - -� �;;---, - � ( --� ) J\ ) / / , / / "-- ,�� /1 W, --:� �1111111111111111111- ::E - / -1 )�, ///,�/ ��"\ \\\\\\\\ -,/A'", -- V/, �,`� �, k,z - -- - -�', ,- I I / \ �,,;� \ ;� - /.1111 - - �,�,-, ) � I ,/ 'I / / �/ / � \ 11 I �\\�,-- \\\\ --0, '<- -� / - - -/ - ,�, -- � - / / / / / " --- ,-�/�' -��,- \� I A� - M \ / �"- �;-,7-,� --& � , � I / � - , � VX1,� - - --,--�:- "- , - ,� -1111 I - 'i I go 1:7--- -- -- Z" --X1 'N \/ /I �, -/ / / /�,�, 1:7---- - ", '� I Y, I\\,'-- - ') , /�/�, ,--e;, �\\- SCALE 1 = 300' 1 U-,;�,� 11 - .1-1.1 I ,4�/ -- �, \ -- , / // // , I 10\�� ,\� ,'4'\' 0 , ''� I 1-'!P-1 Ill- I /� /'//- �,�W ,511 - I 1i;'11 -- ---:--::--�: � �, -- / x , 1�1 I -�) / /�,o / ". \ \,- -- ....��l " --- / 1�"I'll I 10i '\'\ - z :) � ,/ - , -, - 1 --- 10, , W �\ -- - / 11�1) , - - ,z�- - - i ��// / � , I I � \ � \�I\,I,Lll W� - - ---� / , - - �' /115,11 ,� \\\ ,77- � ,/ - // --7i � I/ //1h ,�� \\� , 11 I / / - -- - / , / I 'y , -Z - / . - � ,� -, , - � �f��f��IM ( --�� //- -- �, � ,- )0 I � I, " -, li -- �� - / / \ -- -� z ---- - 111. � � I f ,,,,, /4, -1 ii� 1, - , - I - / -'I-- , V, 11,f -- ,\, f -,� � I ,-,/�'/ \\\ - � �-- - � //1 // // --!frj � -- - �f/ ///, *-) -\ () I - - � ,�-�/ I " - I ) I �\ "- I - X\ I ----, , , - ,"Y - \\- ,�7��-, I'A . - � - I - ,., ., - \\\ " �- '� - , �', I / -- t- I I I /1\ / f- - 1�_-- - - I /////�, , 0'' li �, /// \ �� I I 11 I I -- 1;1r� // Il ,� /'I 11' I '1� i �/�-. '�11 I I/ I - V� � � //'/I "- r �0 I, I /-----� -- --, 7----f �-' -��- /I - - / /� --�/ ---� If I - ---- ------- ---� - I'll, I � J�I�11I, , �')l - -& ---� l I 1,1110�11;--_--��`� I I ,,��, -� - - , 1% I ,;--:--�-�---�- 1) , - -11� - , ��\-:�":�</�-- lf, -- I z �� B, ) lf�f\\) -, ; / -7 ,---- - -- --- C-17 10 I 11 , i �F,+ 7-- ,- //K --�-Z��- ��-�,--� �--� I I - - / -�--�--��- �,,,��, --, � \ " -;� -,, --: � i I - , A L ( ; � --,�-7'--�-�` � � --( f. , - ) ��-5-0 I/ I -- "---� i �; / . "I'll,... -��-&-�- �,�� -;�-�-,--:-��:I-�- - \\ ---- ,--, ,�- I I I --:�- -� - . � " �/' -/ , \ - -� - // -:�---�--�-- - i� //x---Z�- --- - ---- / \ \' � i?� -:--- �:� 'I, - - , ,� - -- -- - '� , , - , ,\� �� -/- / I , e 11 I' --V-:�7��7��- �� ----- , --- - / ') , �� :, ��, � k�,�/�, /��:::E��E�E \ � * �/ \ \ � // I/ I/ ,-I I,\\\� ls�i/ I �/,/I 11 -.�---- 1�1 I�ff�%\\� \ � � ;:�� --- I I I , /I , ; �-- �:---:�--- /////---�:----��I ,\ r -A . - \ -- !�(J�lj I/ - �:�-�, "\ \�� I �0\11 �� 1-111' a , -, )'\' I - %1� ,I S1 1;/�'� , . - 9P (� � -� I ) Wl\�\\ �--W, ST ' 7-7 - - I I ) - I � I I \ \\ \\\'- 1'1111111� 4 \\ . 11 -�--\�� I// /I IN \ \ I - ///, ,\\\ \ \, 1///I"� I \ \ �,,1 \ \ )i I �4 ---�-- � 7v 1/1 I i? , )I,, ,\ I I'll, \1�\\ \ STI -- ; I 1, I - \:� - )fl I\ � I -� ST1 Q3 -- ,----� r1L I 1*1 I ) I I I I -- , I /71/ / ) / IIl` \ )\\�' ) �\\' -,/ ;4- 'I I / , V-, - j"l-- ) I / ' I - I I I-�\)\"\ ,) �' i� � - * *.*: / / I ) ) ) )C " � -� - LU . 11 � _-;:�,' - , it ( , ) J�\\\\ _\ ,, -, I .;:t� 1/11 �, - --, -,� � " / / ) I � / I I - r)9 ,� I��\��,��, -- \��,-,\:;� ,�-- nl?,-- - __ , I W �,�,�\ � ----- /, I/ / / /�// I�,�\\,'� ,:p I \ - , , ,I , ---:--1M, - S T I-G2-,--, "--� 1'.,., I I � - ( / � / � 11 , ' \ \ -\�71 I- .- ,�� I�', 1\- I '.r,��:: , �-,�- � � I t �/ ( � I,� \, \ \\1)� \---�:§-:�,---),!/ �/ - N/ / //,/// I � � o \\ \ \\11� -t��-- 4 � /�, ,� \ -----� I - �1 ) �,�--,�,� �L- / - � a ------, 1/) \ \\\, \ ��Jj � � -,\�,---:-�"\\�17�1`/ � ST101,," ,,".- �.> - - / ,' � \ \\\\ \ Wl � -- \, ---�, ST1 - - .1 // // , \ -�10 �- / � -Wl � \\, - - �,-\ n 1--��- , "I'l I# � ; . � � ,:,:� / ' / ' � "I - � � -- \\ , - \ N ,'�i �/ / - / \ � zl�- -5�- , \ - \ ,M ' 'W� " \ , \' -.6 \ / \\ \ \ - I - am - / - \ \\� I, \\ \- � - - I /I ��,/ N 'Q \ R -,\ \\' , I',-'-,- \� \ \ .--- I I - � . I I("ll � Q ' ) -F�: ----�T.:�I---- �--- -- / - , \ \\,-'� ' \ N \ / �� - -- - 'I :::-�; � / \ B-3 "O" "' / \ \1, ,-\ \\\ \ 7-7�� , .IA / \'\'-�-- \ \\\ \\\�4 �'-- �/ - - -- - -�-�-:: �� 5 �� I I - - -" , \�\'!4z�\\\ \\' ,(-�, ........ // 11�� -, / - - --" \ \�\\\ \\ 'w-c- , - � (4, j ,\ / //1 .....* ) \ //1 - --� ,--�--�\\\\\\\ 1� i, I I \1 / � �'l ,-� -- --9\\, I I *I.7' \ ,- \ - ��,;, \\\ 71' \ , " - 11 - :-: 1F - ,\ - -�,-\\\\\\\\ - �, / � \ � " , / - � I _j --�---:--\\\\\\\\\ I -f - /��,-��,-,,--- 1-1� -� . I� X-�� , _-_ , r - � \� -�t� "" ( �� V ,�I ,, - - �1 / / � , Aj I/I 111I �� ,,, ` I . ,--�-- --\\\ \\\\\ ,\-� )41), ', � '\ � - - - \- . //,/ I - ,,,, 11 -- ----, ,� .� - - � / - -- (-) --�-- �\,�,\\ ) I ` I �;�- - , ,, I �,� ,�. , /Jlj�� \ -��=- -\,-��\\', �. I I \ I ( I -- \ I // -�,7--�-:---7::�f . :-:11:1 7,1, �-- �\�, l, -i ,,, I , 1� .-.......... / - ! \1 I - \ rf �/� �1-,51�/, - 7 - �,�i,/�, �", ------- ,I/ � \�,��`Iil' I j , Lu /1�1-:��----\\\ \\\ 11......1". ..., I - 7/ �- /,�------:-�,\\\\,\�\\ ,�, I , , �, I I'll -�- - I \�111� � 11 \\�\ �W,-,Vv V \I \ I �I �'q' I "I I / - -- xx� I�11 .".,. I - � � - `I` / � . . I/- - I /I 1'4;!�� - - � `(�-X,�\\�, \\\\ �\-a .., , - 1, \:;,�\� , �\-w- ... . I I , ", \��fi/ --\ \�\? �11 \I\ , . . 0 11 ,�-Il �- \1 -/6 - ---\ - ,, "/) �* * - -- � ,��\�,\N\�0\\ .�4 I 0 - -j - - -I , -, 1�, ::, � , - ) I / ,----_ , \ �\ 11 "I -\�\ \� l I(/ �*-*� � - I,)'/ I .. . ;�v ,-- � 1,4/ -- \\ \,\�,\� ill/ I -- ,/ - --- , -^\\\\\\�\ I ,;If � -- � �, \\\\�\ I \ �, , - / )(,:/ ,i,.4/ A-\ I -,I "I -� -- -- -\\ \ �-I-,�� I z- -", �� -/ X I/r/"--- -- -- , ) , \\kul� V T i II 11 , f`/ , � -/ 11,/ 0///,/--- \� -)j(, \I !"'.,I ) I �, -, / - - , , x - � ,- -�� , - -- - �;::�- I �, x�/ It ,--- -) , \�k�11�\�- \Pi,`Ir .) ��,-1141� \ 1(/,I/ / , , \ fil j \ j - � - -1. I �// -- � , \ �� ) 41 - N ;� � \ \\ X\ ) 11 � -, � � . I . � , b- ��, I///�\ \\\\\\-"A�\- � j ,- '. --- � '-`�'�' --�,A; '71 , 1� - /,�"//, - `�-,,:-1 / �� C) I/// - � -- ,- ",- I - . / - \�\\\ I/ I (N - , � / X-�- ) � I -,��-71:-ir__ )/ I -�'/-- 0 I I� ll� I � "I I----- -- / i?,i Z: /. ---�-4 ,/ ,/) �,�\\�� ;�/ ?z \\\"I / �`��,�� --Z � � -- ,, ------, 11 +1 ��,-- - /o- \1\ , \\,- If I �?!- - � � ///\ \, , - -- f��11 \1 I ,-,-,--� ----��-, / , \\ ��\\\,� I I-- e�/-//-,, \ ,:�� r", I�, NJ� � � � -- - ,�,, -- \ � , " Z�/,�-�� "- --f(V \ \ \\ I �N�\\ , \_1 I-q 1'� I ill' - �- 1� � - ��7frl----1 �, /1, - �t\\\� // A >� � -�l�!7�::�--:--. ( 'J\ -- - , I� �, , -- . � 1�/ - / - I I W//, I � ,\\ I �'I� �� 14/ / / � �� , A`1�' ' \ �� , I I � / / '4, /' � , �\\� -- - --- "L -� -- TO , \�,, I \'( 1 �7- ,IIJ`�!' �w I -- ---, \ --/ ,,.,� - - ) ,,I// �, // /` -/`\//- \\ \ \ I I -'�� -*,* - " I M ,/, � ,- - I . . - -- . I / ---�/>/) \ � �\1\ ,\,��, I I � Z3 / /--11/�� \ \\ \, �\\�I l�s \ - � �,,� ,�,,� - I\\\ I / �, "I� I \ \\ \\�,��l I ,'\ � \� -,�J1, , N�l�,, I , \�� , - �\\\ I ij C , �/\\ \J\)I � )I I I \ \ \� 1) I I I I i�\,\�I .. -' '� ( )�f\ 1114 ((it L\�, � )I I I \ - , I I 1�I, ,, I \�\ 7 CID I / , 1/�/ \ - -- '. 1�� I . ;; , /X- � \ / / /,Y\ , \ �\ I I�\-<\,, I 1 V\- ��, �, -) / /�/ \ \ I ,1�,4/,1 -1, \ \ \\� - � \ �I,�, I�I - -� W, . \,-,-\I I�, � � -/),I) 7'-� ,\\\\ , \ \��, �I I 8 I\ 1, \� I I � -,))/ ,,- - � t.--- (� I , \ \ ( Il /' il�) -,!�� \\ -----�--��-,�-�7-1--�� - ( '.1 / ,-1/�/ --/ -,---�±� - - - - �- \ I %I � - --7;�- -,�� \ '. / ,�,,-/ -1 (- W /" -�-,-,-ff-Az��-71<1-! \I\�\\�� I � �\, ��,o I-/ I / //// I I I ' I . /� I ( V � ��\\ . - - � ,// \ lf�,l I ,��\\ :\ , - I -), - \ / ,'(�,��, )� �\\ t_) 7-1 - - ) ) - \ �P,3r- \"-, � \ 7 7 t-7--('t' -K=-2 � , I,/ , - ,\,\ I //,I,/ I/ �-,77 ! I'll Z� --,a�= Z- -V ,� =, =4 ,i ) ��\,\A - ////-, - ///Z,�, � ��\\\� / , \ 0 � \ \ I ,� \ i'5'-I',,\ �\k,\ //1�, �\\\� / � \ \� " (A\,j: / / -'\ \\\ \�-\,\�, -�' �V--� . . , 1 � I / / / " ,- 'I /// I � ��\�\\ \ , , I \'TIM"', 1�i, * --)�I *-*-///��-// � � - N \�\�\\ > / /-,� \ I � -\) ) -�/ I I- ,// / ) I \ � � ) ) ) - -11 , , (---�/ r ) \�\'\\ � , \ �' �; I 11 //'j/ . TV , ., --, � � 1/ �\,\\\\ ,P \�4�,--�7"yll * '/ ", ) � � 3: / \ \ \ \ , \ � , �,,-1�'Jj � / I , - �,l I \�,� , . \ / \ �, �, --, \ ) � / \ \ \ � II � � \ , .� \ 1. I 'fil,I/ � �\\ * ill ill I olld, -� ) -,, / � � \ ( / \ � \ \ �� \ � - ,�4� I , 'i -\\ ( / \ � \ � � \, \ - -,,% \v, fIll 14 ... �:*l,V Z///", -� ( //( ( �,Ql '\\ - -- �'A (I \ / ,/\ ,�,�l >� I �, , , � ,. \�I,�..:.Ij / �� 1 I \ \\1 ) ) - \ \ \\ ,,�\�---�- - -% it. .1 . ,-,r/I \ � "�� \\\ -2 / ) I, I \ ,\\ � - -- --- I \�� A\ :::: �� I I \ -,1 "I - - I , \ \ \ \\ �- W ,� I � \ �� -�e I , \ \ \ '\ \\�, I \ 0 \ -�--:----�� \ - -"�""`l`,.....l \ � I'\ L � I I \ \ \ ---z- "-iliiiiiiiiii....iiiiii.......l., 1�� I I \ \ \ ---� - �zl N\\ � \*::ii� I l 1\\�,- _- - -f�- I/I,, � � %, ill \ \\\--�_ �� \ a) -, - ";6 -1 - r, I::: � �, --�, "I I � \ -, --- \� \ �j:: :F: ,- I --,�//��,:.- "' . I \ I �\1\\�--��/ 10 .. ... . I �\'\\-= - ", ,\\\'� - ." - \ -�t ANI � \ -, ,- -- ��--- �� \ 'O, \\ , I \- \ f � ��.]. -�� ijij�\ joir -- -- - 90 // \\�:::L-��' � / / ,\< - -�\-�, ,�---\ , , , ,l� , '61/ j / /-,\ - ) I.- .tl � , \ \� \\� ,4( 1 � WASTE ROCK PILE AREA .,\\\--7:- -"///) I - - \ WASTE ROCK PILE AREA 11 I - - - -� �\ �, - , :-? . . 11 ,--- � - - . . . . , -- - , - \ --- - �--�--,:�--`- * * ;,- - -�� ,-,m - -0 ,---7�--- - / / \\ \ ,( �- . . / � '� \ \ , \ -!� I L , I W�, It -]11. . ., lll 1 V ;1 ` I I \`�> oz-, , \\\ \ � \ w, \ PHASE 1 �-4 1 \��,ST-1 1 0 7,�/- ( I ,�, <��_�, ,\ \ \l I ) - PHASE 1 Y" *- ,:,: I- ,� 0 /,,��/,,/ I ( " / :� \ \ \ ka - I , N 11 V I \w' � /(, 1111TJ .,. I )� I \ � ) 11 \ ,,,, / -� .\� J. L�' j \ ,�� I \ � � I 111111� \, ,,"�' I . I . A \ � \ I 9 I � I I � � 1.�,- _ 4�\ , If. \L( , '�\ I ,P /, \\ .I:--, ;/I ',� � -- �� V - '. - \ 1�1 I- � � 'V'W(11�, \ , \�) \ - \ \\ I 1� 'S111 ��.,-,,\\"\\,� I �. \�\ �\\�,\�\\Ifl , \ I I I I � , -), �-'- /� I \ I 1 [ 1, A; \1 + /��/// ,- --,-r -� V-,\ I - . .I' , , , \ I -, i,-,, . 7 N, ,�\, / �\\-�,,,,R \\\\\� I / I 11 �� - �:7,x�\\\1\\1 l I / ') �, \ I / I 11, . \ - I "' \," \--- - / /////'I I F-.1 '. / . � \ \\ --- //"//"j , -)r) 14 A 1z H �\ \�\ -, fGH � , 12' H-[GF NIP ,�� -F,*fGH NIP I ,,,,, %� , \ i j�- . � � / I � ////,/ I , I / 11 /'//'/ Ill I - it, \�1$K\�q\ \ �\\\\\--,-,q I I I ,Z�-- - / � '11��,�- S� ll\\ ,�\11% I / ////,/ (,S� - L( ,4 \ - ////,/, (- - L(- I I$K\\ \ L\\\�7��,��i�:-��-� ,,, , 'Q , ( / I bb- 11 - / / \ :�- / _ ,I \ , " \\7 ,�-, - / / ---, � 1� � fl ) \\ - .ril ..... , Ir \ \\� - \ 71\171\\�z ,-,, // -- I � / / il,-,I,-�4. / I I \ - ) IN I � I I -- - I 11 )I , / '/ 1 -3 , 11� /� I I, I I � ,I ,//Y//I// � / � �, / 'T� // , I/ lil I ( I I I it/ ///// , � � � .1 ,/ // , I I I)) `\ � '11,//,///,/// t� I I / / ) /I � � �V///,/'//// 'T /) ,I )Ii I I I/ I / I I I)I I , 1) / I I 1/////I//// \ \ -1 / - 1z , :-,/ /// ) // c \,\ \ Il � - I,/ - // // /I//) / // // /// /I I I ( I / / // /// / I I / / ,//�///'/ I I /I I / j / / I 2�,,/'/ / , ED( C � � ///;�;- /// /�,/ J]"I/ '//J'//// . // I W NST E 1 R\0 m �� I / //// I/ �// /'////// WAS T E�I R�,O C /�/ I 11 I - I ////// �, // /// , ,/// '/ '/// / / . // // ( // , , / � I / I / / , ,W(j//,/ LN[TRA. / * --1 //� �- WO u / ,/ /// , , ,II//////// ///,/////`/ ENTRANQE,\, - n I0 �// ' ' -1 / //`�_- -,/, 11 , // f ////// "I /,�W/W/ I C'F,S,$"ROA -� I I � - // / /// / I I I//I" '/ I / AND �CG :zw.. . 4,� / //// /,P/ /, I 6/ / ////////// / / I ;�;' � / I / ///////, // / / I =SS\R (' ') / " Ill j ��////// AND AC, .1.1 ,/,/ (I , ( // 11 " '� \ \ I ,j I I �, \ \ / " , " / /// /// / / ---// /I �J� �/( (///'/ '//J' IT / - , -,, :-// // 11( I/, ( / // '/ /,//((f / �,�'//,�/////// 1 � ��/ i ;;�,//////-"�,�,///, \ \ \ \ � Ill/ � , \ \ -14 / \ \1 \ \ I �� - ' ) �It \\ \ �W � 1/11 I/ \ ' 0-//// \ � \ . - ,0, / -, / // /// f,// - )I \It \\ \ \l\' \ 'jW/ \ I ��,// ,////, ,\ � , \ \ ) I \ l- --- � / 1�,//// / \ \ \ I ) I \ I / / / �,//// /// " , ` - - j // / T//// �1111/ / \ � I \ \ ) I/// � \ l \ \ �,/rjf I - ,/ lI6 /// /// W11I - 1 / I 'I '/ I ////////�� -"4, ,� I -- 1 I I /// / I � � \ \ \ I I -��--,,, �u //" -�"/ / ) , I I - / ) / / - I / ////////�-�,��,,� ) I \ \ \ I >--�� ) , W/l/ I \ � � IF1 ,A-A \. / -�. 1-1 - :-, . . - , /// -�/ / "]` , - , 1 '/ /, /Jllf))/� / . ///// / � � I � ,// / //'- - -/ )9/ 11(�--�- / // //Ill,//, , �� //////�-,��-�,- / � � \ \ � , � /" - 1�1 ---,// / - - - I /1 'I ' -- ,/ / / :�///// I - - / /-'� li -----/ ///////// I �' -/// - 11 �, / ,7. - - - IA( - / /I( (/,>- --� /// -- -I (I--��/- 11 / / � \ � i ) - -- / //� -'-- -/// I I 1,I / I I / `�'� �l - _-::I_ _, / /[\ . - 1 U$J-- /J I// ---��-- -�/ /) it � \ I, I i " - /- /// //; �- (-/,-� // � -4, // -------,/,- //// �,////////�,/ - � \ \ / ,,;� �// I -- ��/�//�//I \ j //,,-I � /// ) \ \ / 'f"A' / \ n. / /,6 , . - //I (�f-�,///�/ )11�L I I\\�-,:�I '/O// I \ �'/.'/////////////' ///Ov �/I I I - ---:�///( � I('�:-�, / I )�I '\'\C:`---,, /p// � \ ,R////l//I /// geo, ) , / I -/ Y/ I /17i. / � - \ ---��///� I I �, , /// ,// I -,� /// Z��2----�KZ�7 -T f, -� --- /////// &-- �, ., /I "/. I . // / / ) -- I I , I f�F?l\ � -// / I I //' '//////// , I / � . -- --64,9, // // ; -- -j j I , i �V\ � � // / I t( I I I //// / /,*tl 13-21 --::��::� �'. � -- I - � -/ (((j I I /// ) ,6013-21 :�'� I I� F-- / / I I I( I )) � ( / ( � [((p , �/ /// I ) i -- I I 11 ) ) ) \ I / ( - I--- - --' /// // /// / \ . -- // / / / /// / / - / / �,- - �\I� I�\ A�'r / I ---/ / I,�':��1:�, /� ))�f / � / / ) I t I�\ �' , - - / i'L -/ /� ) ((/// / ; / /;) '/ / I - / / , o\0' � , �,- ,11 i 11 \ �- --�--Z- �q. -��// -, --I I - )I I I/ / / / / -/ , I I \ I --��,--�::----=-��<:- -:: - I - � ,f � I ---)/ --1)) I I / / / / / I/ � � � � � � � .. -32S , -" ,- / / , -)Ir I \ -- S - ///j 1)I\�I�I I / � _U11:3-326-I/ � I I - -�-- ----:�� - z K- / ll, -- --- "� � / / �' � - z��/// I / ) \ � I Ill I )I \ 1��?�- I -I."--,- -- / �, � �----��,�',// /'/ I', 1, - III �0 \ - � - , OB / / -- �� , // ( / i �/ - x - - �, �, 5�: - - C,; -+L- - � �/ / � - , � _;iii� -- / (I/- -�,-- , - , / � I I �I HI � .11 �,\ � - / � //� � *! - ---- , � I - -&-- - I ------- ,,� � � �- I - -7�� ----, \ - 11 � �1� - '41', 1 - - -, - -,�:-------1 \\ -q� --- -��/, - - -/ / � - � I � � � � � / I I k--�- zt--I-� �, - � �- .lI--'k - - �Z/1 -:� I - ,6� �� / , , / ,-- \1 , � Z -Va P-4-- - --'\\ I . 11, /// / -,/ - Zl�-i��,�,�� --- - � I -I - \\\, .' ��---:::� - - ; =- ,- / . 111/1/(/ I / I / I - ��\ ,..-�--- I/ - / /,�, / 11 -�//--� -�llllll-!""""""""!""`� -- /-/ / / / I ) ��-��- - - "I -7 -- -- -- � / I --1 \,\ -- , --, " "q-, - / /1� ////,//--�,/ . - I ;j;;_; _---- ---- -1 / I, /// / / -)f, ,\- -�9'pr,�---:--�--%,,- , \�, 1 --� ( / ( - - ,. * - �, - - / / /,),,�-,�\\"\ - --- *�' -'�f�,` - '- - / / /////-,--'�- - --!!�] ,----- / -- -- - -�/ /- / ,;::�� /---�z"il�� " / ( - ---- ,do------ / 4- -- - - - / "' � -�,-- - / / '/1 1--�- I ) / �, I I I I�I i , ( /'/'0-'--)--�j�\---- 6- �---- <11 - - --�/ /- �/- WASTE ROCK PILE - PHASE 1 / � , / / / ) / ----- �, - / I WASTE ROCK PILE - PHASE 1 / / � / / / � / / 111j,11 I \ )T- �� / �\N - " - , A5�1 1 -,�,, - � / -� - �- ) /--///// -" ) --1 -� / -- - ---- - �, ) /- - I ---- * _; - - / - / //' ) I / ,/ / // ___-, I ,� ) ,� --- I /I 1, , �,� I/ / � / I/ / / / -- 11 ,� I e�-�:-\:--,-- -- -- --- - --/ /-�- - / .11 '2�:- --,(--- ,-- � /I - - -- 4i-�f---- � , / / / - 7 -Z�1 / �, -_� ---�trx � / 11 - ----- �,*;�� - 1, - -- ,/ / --::� , 11 / / / // <-- ---:_�- /],),I, � Il�--�:-��f��,-� 'J- --1111, / / / / -- , - �- �,�///,) , -, -+��, - -- - I I -��,�-/ �, I -!'�� -��---I, -- ---� - - --,,, '� ,, ,- , / /' / / 1 // -- - - - - � -, // " I - -- -:�- �, ,/ , - -146�-� - -1" -- -� _---, -� -�, / Z �, / / - - � :- ----- / // // , [,- 40- ----77-1�- --'- -- --- -- �" / //// (/ / // /, -- -��-:::- / � // / /(O -, - -��/ -< ---- �-7�7 - -- _-_-_, / //Z - - ELEVATION 840' TO 880' -1 / - --��--- -�,;� .�� ---- �- " ELEVATION 880' TO 920' 11 / ///- ---- ,��,',`, , Q� --5-1- - ---::: - --5jl!f�: � / / / /'/ / // ,--_--_- ,- � - -- - �, I -"11 - /� � --�,�--7� -- -- � �� -- -<-- --- - --> ,,,,, - -11 / I - �, -----179' / / // / 11'/ I � ,,.-��r�--�- - --- I ) -----&70,/ -� ---::--::--,�� / \ / / - 1� �, I --_,, I- // / I#-// / ) \ ,� �-� � -�:---_-- �11 -, //-- �,- - - , -, ---�- / - /�-,:_� --- �, 1\ , ��---- -I - - / / / , z - ,,�:- _--- � --- - ,/ / \ / � / ( // / - / ��-� I,- CONSTRUCTION TIMEFRAME: 2.4 MONTHS / ,:, 1/) 1/1--11 ----\ �A\, � ;S -- - ->- - ;I- -1 CONSTRUCTION TIMEFRAME: 9.3 MONTHS �, "I ////j /A�-- , �� / � / --,;:�-- - - -,� \,-- - ---- \1 - - I �� I �-- - - - / ,��--;�-� �, - 4 --- - --- - �, �, -��, �/ / --/ ::��- ------�- _,-,,�, ) ---�, / I -�- : 75o --:--:--��----, . - - - �:��5�,- '��-�-�" - / / I----, --- ,�// "/ , - / -- -- - , Ill\ \1 \7 , ��--- -� 11 /I -1 // - ) / ) // / �0 -�� --� �� / / ) // / I-----� 1��--�-- ,I -// -- - -� ---- - -, ---- - / 1z-- / ,�� --� - =� \\��-�,-- - , - -�-�:,-;�-----/ � --:� �, -- ' '/,O/ ,/ ,/ / , ,��411 , , ': - __- - � / --: / � �� / - - - - - I I I ,,,�� I I I ---�a I ) � I � I / / , / ( j -- �', <- , -=z I - VI - - .1" I; I �- � �__------�7-`� - � - - :�-- / /I 11 / ( � -- ---- - j / qJ1 [ � / �\\\ \\� Y\ , -- -- 1 / 10 - --- -- -�, ,� - - z / (-- - - ) �\\ ll� -- - I - - - I � � I / ", -- �� ) � I -- � � ,� � I ��--��-:�- / / ) f - - - -::�-�-�- - � /,fv) / I 0 I - �\, ,� W )�-----:�,'�,� - - --__ / / / ) f ( / � �\ \ \ � - � ---?��- I �I I I I t ) � ��----:-- --�:�,�--�:�-- 1// -j --'\ ' --- �, � f III \ �'/'-- -- -� \ ' I -�:------ �,x ) � f / 1 � ��'"'LL , L, . �,- -- , � - - ) 5/ , �\ \ C, �, \-� / /-- � '\ 1 � � �, / / �- --/1� - j `,1 - --\ \� \ �----�- , - --�, / / / - / IIW� ----)] X\x I - - - - - /I- -7� -- ,-- -- - � � \�\\ '\\ � 1z, - -�� - -/ /,�, \\\ ,- \ \ � -- - - . �, - / ��W I - - \, \ , - / / , - 11 / �, - - I 0 \ , \- -- �, / ,/- - I - - - " / I - -\� 0 \�,; I \- / / , �/ - �, I - � I , I/ \�\\\ - � \\ -::_-/ - \ -�, / / / ( -.7� \\�\\\\\\ - � - � � 4 / , ( - 1� / \A - - -::� ��-:�� \ � \�/ / 0�' z ----- r--1 \\\\\\\\ - � ( - / / 1011, � - r-�, I XW 1� - ( -�� \ � � . I ( 1( I/ �/ / / � J- -�"-� I --�� - - -- ---�-� )\ � � \- / / / / / / / /-- 11 I \ /', - ----,%�,�,��\ / ) \ � \\\\\\\\ , - / , \\\\\ , -";� , \ /.�,, .�' / -- , ) ( )I) I i.1 \1/ �-/ / �, / - \ -1 1, - - .. . .......... '\ \ I �Tll -\ -- - --"i",---�,\� I ) � /I I I - / �-/ / / I I / / / ,� \ -� :,�/ ,�,�,-- 1�- -,�:�', -��,,�,�--� �,�- '00\0m - - , �, / 11 - -�,,-,-,---'� \ ) , � ,\ -,�"I -- / /� --/ / / / / ,� - � - --- x , , \ x - 11,41 �1\ I � 1��,� --� \ ) , � ,\ T",) / 1� / / 11 -- ,:�/ - I'll, I ,��\\\' "I 11��`, -\ I -av I / �, / / / // " �,-�--- �, - I- I I, /-- , ,-- / / Z " -- �,-" I/; IOI`I� . - �� \-1�--_,- \� \ \/ / - �) \V\�\-- �� '\''�...�,� ', - '-,\ --- \, � -LY \/ / -/ 1:7----) - �W --/ "- - ,�-:�- //� - � /'// \1�11).\�11\ -- - --::--- ---�,\ \\,� Ill �, - / � _:-� I \1 - �\\- \ ,- - I �,- I �\ � � - --�:---- ,�, -- I ///,�-- I/ // / �, / \\\\�- le, \ �� -- ----,-�','-��',--4;� ---/,////' 6' B A' - - - --- / -, � , I -)l � -= - - I ��// / �- -1 11 I/ I NAD-83 -, - - "', \ �0'�OI ,�� - - �, ;��-=- � - '� � I�// / �- -- �- �� /, /L -:� - I- ;Iy /,/A ,- - � � " y ,/,�-- �6 , - "/ - ////---7�:----- � - I/" X- ;�- ,A" NC-SPCS I`- -- - -, / � / / ----::- - '- I ,- 1/11 � I � 17-'/.�, , / � , \ - -- � --1 - ��- / �- V'/"' 11 f �-V/ 11 - :: - -1�1 // -- I - z I � \\ , \� �� -- 1� -�� -- � ., / I �" ) �1- � �I �\ �I lf,f, /-��'/ - -- \\\,N \ �- - I -,/, - - 1\1 �- � ��-/�� 1'\ ; i"I'l -- - \\ -- --�r--, I mial; / - t/ '0M ,/ ,\ � 1,1 � - , � - " I - - I---- - � - Iq il/ 1, - . � -- , - -t,.711� ( �v � - I -- z�--/--;�------�� - / 11 ,. I I I I / \ - - \\ , , -\ / - , , -�, -- ]�� / / �� , \\ 1-��-//I/-�- ,/\:�, ------`) - J�� , - -��-,��\ ,-': ----,-,� �, ///il�iliilii�- I �-\ - , 1 7=� - I , :,�,- , / ��\ ,r�� '- � ,�/, // \ �( . I // I I �'Wl' e - -- ��-Cz- /, / - y I I - ., -7::-�� -- -�- - - - , , , , ��, � -/ -�- �1///�1'-/-1-/--- � / �', ,,�,4�1'I / , -, 1 .4�1�1 / , -- -,-�� \\ - \ --7:-----�---`� / I, , --- �- \\,,, ,,.'�� /w---`,--1177�4 -- �;;;;�- -- - - �,\-� ,� \1- -A (I 1.1-11' ) \ � ,- --If, (�- I - - - ,,\ ---- , - I . ,� -� --��-,�� I -�--;�',,�- ,,p / ��-Z- - - 1 11�4 - - '� ,:7- 1 -:�- - - I �v�,P��-/ - -��i� ) - -ZV'11�1 " ) �- I I -:-� ,�, -/ - ----- - -- / , ��11 ---- (- f 1, -:�'�--<�� - -z-� -- \ - I I \ I I I /-�--.-- ,-:�:--- - �-_:�� ---I�11, /--��--1-- - - �//;,� , , -ifb ,:�� ///--�- --77- I/ - - ,\\p 1\�-I- -� -� I I 11 I �, __:Z��7� : -- I ,- ��-::�-�� = ��=--�-- � -,�:-- � ��7--�------ ','Z�/ / ::L--:�:::: \ I � / I .1 �// ��\' I � (-) 't ��: < / -:� -) \ �-- i$� � �-��:��7:��l=- Z/�:-�:�:��::::-f!I I j'I��,\\\� I��\\ -� /----/ � ".� __j N 0 O-) --- l 00 . � . 1-1 . -- - - L-i 0 T: - 01 / � ,-X,,-".,.Aff, \--- --) - // -::�---�)I I��I I�-\\,� � \ / / I rl�r Ir-Ir , P(lf � -- 3: � I�I 11111 \, �--�, /I - - \ - I � 'I --- /// I \\\ �, S - r -1 /'// / -- I�Ii� � , -- \ I --- , / TTA \\\ � \ Ai ) )1/ 1 \1I � I --� -STT ff- ---I- - -- - -,- � \\\ \,\,��, -11" ) ---- )� ) . -, - 3: ,F I � -1 �- -/ I I ) � ) 'Jj� -- �/, - - --1 C� I - / I / W I " il / / , � I I I I \ I I I��*.Q�Z,��,,,,,, -, ,�- - ST1 n � , ( '/////,/ , %`�",\\\ - -. , 11, I � - .: If . , / / / / I � \\\\�\--: -*L- - � ---- S . �'//i I�� \ --- -, � / 11 ( ( I � - - RTI �,/-- � / [ I, , �\ - 4�--:�-- - '\- � �- 'F r I -- 1\ . :-, ��; . I \\��:_ ------ ,a;, \ ,/, . f � I \ - .. 7// , --- - \ \ , , ---- , --- I 0 1 ) I ( � \� \\ \ \\\I �- -::�-� � '� - .I \i�I-,� ,, -- -1 ( I 1) ) (' � I� \ I --1,�' z - I \ S . -- -� \ .. 17 -- I �\ \, ---,�, I .. \ "I C-) E �- ,: -� ) � \ \\\\ \ �)Hk --�<', � -- -� ST10 - le / I ,I I'll � -�10 / /' I I \- ST1 -/ \ -, \\ I\ f\\\---: '� V ,\ \--, -e , - � -_*_-15:��- -, I 11 --� LLJ .. . -) - \ , -I, ,- �/, \ \ LLJ ( 0 �/ - -\ \\l, f, \\ \,�,-�\ \ \ \ �1-�-- ---- . . I I �(;� ,�,��,, ) - / - 1\ ,\k \ , - - . \ �,?- �___--- 1. = -� ��-, .. Lij LLJ z - / \\, \ \\\,- - - \� \ \ - --.-- --�2 �,- -,- . 1, 16) - I / \ \ *1 ----- "-"- - ...* :-:::* W / // / \ I �Z'-*- / \ -,�-,\ \,\ , - I I �, - �/ �- - / LLJ [If (-) [if --j - - \ \�\"El��\\\ \\ ' I(- � / �,I �, 11 � 11 I \ C� (-) C� U� 0- L, - --� 1, �,,,,,��\ 1*1 I \ / � -, --� I 1'� / �\ I C) I I I , 11 - -�-\\\\\\\ \\.1 r('�--\��'-��: - '\\� \ �,oaww--7. 1, 1. I * ( � �\ I I / �, - �7::-:- / I� . . ,a��,�7f -/ 11 - - -,\\\\\\\\\ � -\�- - 1-1� - I- -- . I I // - 2��--::�- --- .*,*� -, , L�-- �,\ ?I---- -A. I --- / Z�-��-- - ,\\ X i - . . - *r- �z Z/ -- // :� / /� I 1, i , �, � - - - �, / �� -!!-:��- -\�,\,\ - 1N,i\ ./- , L� / -� -----:� 0-I ---\\-\\\ 'I/A I , �� - � I I I I 1�- -� ,-,,-:--- -- I.,., . I I � ,� ,il - \'\\( 'Ir\"*1 V \I \ I I , �." " � - " 11 , \ \\\ ,\`z -.-- *-*-* i - - , -�� I ila`�-* I \I,/ . . I 1, / -- �E�-, � f --- ,,% I �- -� - I --� / �---_ 0\\\\\ \"� \\�, \ 1, I \��, . I -- ) 1)I/ � - I ) \ If,-�P/'\\ " �1 I 1.".,..I I .. I . I 1� I/ 4/ -----11\ 1/7?/P��\\ �f- 1� �,"/-- -----\� -)�(,3-/'K\\\\\\\\\\,�-\�\ �,Ir A- -A \ -/ . \\�\ -zx� , / I �//--- /,- 1�-�,�-- -/ - - - - , � , \\I�11��k I \ ,�� ,tl ,� - - / - - �, -:� \ vf�''-I \ V I - /-// -- -- /-�// Il"O I � \\�\\� - � .�I� \M�l , - , - , -- I////\ \ \\\\\�1,18,,� -,�� H, , "I �/ .1 � ---- ,-)//y 1//1�,,� ,, ::��/ - -- X-1 \\ , . � -� - ��, /��/,�� , / �� / \,\ \\\\L I / ,--�-/ -;\y� \ \\\\, \� ,--/ 0, \ (, / /0- -�--�- ?�111 -� I- I/ �, � , ,6/ - , H 0 ----- ) 0\- Z I" V X�-�� I ,',�Y\ \ \\I \\, - - --- - ,�� / - - , ,\-If , \ \' \\', \ � Qkt\ ,III, I --------.- ( / / - ) &\' �� - --� 1, A�;::-�Iz-i�--,:� �� \\ \ \ I`f, III � \ ,I/ "I 'j 1: -� ),W - -_///� I / /-'---�-/"\/- XIII \ �� 1� / ---�///v --� (D / I//P \ \\ \\ \' '\ P,J, 'ill I I\\\ / �,/�, �, I - (3 < ,/Q/\\ \'%\�f � )11I \ '\, \ I E�� -\"\1jjIi 11 .. ) �f� )v , I[ ,- /(/ \ . z 11"7,,91\ \ \ \,I�\ �(11� �,-�--\f� Ill, \ �, -\ ;1- -' I � -/Jj/ ��, �/ \\\\� . / / ,�//\ XNV � �,)�/ Z' I � -- ;�P7+, ;�`--�, :� 1(,-� /(� // z 9 - l��-,:-1-2�y-=,�z-A---,�-l�i-i:El�-,��4-""-\��;,- -!�o 0W\ ", I I / 1-1X/ -/ --�---,�--\Z, Il'i .4-- -V - , - - - -i� � ./ //// I � llf,�\\ ., 1 /// I 11!`-ll"`-`-`-`- , ,� ,\ \�,\ / I , ;I \� IV\I -1 U I --�" �.� //-/// j � . �1// �\\\,� ,� --�q�%-- , � )"., '' \� 1��V \ �� \\\ �1-�,A' - \ v 1\� - � - \-\ I *, // / . / \\\\) Cn 0 , %\\� \ -) / � ,� I � � � \�,\�, , � � -�, "i f111 , M ) � \ / z I �� I I . . -�, -----///� / 11 � / \ - , �, / --�) I � \ - \ij I . . ( -.."', ��\'\\ LU k -,�) , � I-- // ) � I � ' f, � \ . - -�/ I - \'\'\\ / < x O 'I 11 \ �-, ,if I 1% . .�. I , \ ,\ \ '. �\- I ) � ( / \ \ \ � � \ I \\, \ -� " I": ,,'\I ,,_::!\,\W, , . �///,- . :�� ', j I � I 70-)\\\' ,\ I I I I \ � , , \ - , , 111 . I . \ Z < LU D 11� '1II'(I1jf,-:- /// I// �V- \-<I-Mil- (P ,\\ , � I . \ ) - � \ 0 \, '---::�--,� I \�V,�111 1, f)�i I �17"t //��, W 11 I 1'� \ � 14 Z-Z-11 I I I � \11 :i U - \ , - - , I 1-� n ,, / \ \ \ \ 0 � - A ,�� a / V4 � . " I � � . \\\\- , \ \ \ \\ �, ---:- \1 � ��- � I f, - ,- - � � --------�-_\- - � - '� I'f\ - � \\ I ,� \��\J� :: "*'�� ', I �1� I 1\\\\� 0 = 13. LU �--�-- � 1'� I I \��, � \�_, � . - - - k�, * * 1� A - U) --� - -- ", \ \, " I -- � / I . t ) . I I --- - , .--Vl � ��, I �-11 -- / - - � -, -, , \\��%\MK� -� 1� -11, . � �?/) �\\�I'- - / -� V \ .\.\ - - T, . � .� A -, -, \ \ N �,(q WASTE ROCK PILE AREA ) \ , , P,I,t WASTE ROCK PILE AREA i - � �, :::::j� :: I' � : : :.: ..'� �%"�� \,-,�L-:�- �------�,-- \ \ T-1 1 0 W 11iii x .. I / I 'Is, I-e<-\-\ \ \ \ I \ Ill- I ..I - I . -110 � /(/ \< - \, �,, PHASE1 1 ,�' I < (X U LJ 1�� \ � \ I t\fi�,\\', . -- A, z ( I � \\�-� \ \ \ , ' I� 11 0 01 , � /- \ I \ I ) , 1 2 \ 7 lj� , � I I I I U z , � \ � I ,�T)T\\� I*m I - '� \\ < I � I 10.11 '.-' �I rp, .., .,. . - I \ I 4, _- :�: *�: �I ,\ ,I�(11))ijl\\ ) \ \1 �, V!, - ��, "/i:6��i��\\'�, I,,('' -- -_-�- 2 - LJ6 \ P4 -t .� . - .11 ,\\ ��\�,\\\�( ,/ �\\�,\�,� ,�,' - ) �-- \ \" . Ill- 19' .. ,\\ A-,N��,,�,\\\\\\\ ��// `��, I. i ." , ,\�\\ 1, \o LU z \ - I � / I I . I , " - - I / I \ ., . I D >- - 4 ,h", .�\\,�, , , - -- IIi............ U � !�47, �\ \ -- .,.. . \6�� "I 1Z 141 . . I I - F- - \ fil �P,��/e�p'I I , -�-z , '//I/ -L z 121 KIG-H- [P 4��- 1 , !11�7-- �/ I \,�� i - � ! .1 �11�- - i // U) F- (,.5QUP 1\`1 . >K\�, -I ;17Y i. V)S K\ r- :) ... / "\ \ \\\ \\ \ \ I . / '/'/ (- / I IT 1� ,\\ )I � \�\ " ," I :��-i�,,� / I�\1\ < C.) I . I� \ \f, � \1- / // -� / / 'Ilk I � � \\�� ///////' -i 0 � ,I,, I I // . , j) I \ 11 /// '/ �' I I 1) I 'I I\�L �////",�, 3: =) �. \ \ 51> 11 -j/ / /W 0 ) \ I ;I I / 0 , , I I , /'/// F- 0 w / I /, /// // " /// / // / / '//)/) /// \ -, (\/ I / ) /// / //// � //)'///// ".. 11 /1 t-% 11 I /)/,/�, 0- �b , lj�� /////////Y/ �, . II"`- WASTEA0 11 j /// J\\ t - /, ////p , WASTE',R\OCK - - 19- z tNfF,XtA1,j%....l, �, ) ) lf,\ � , /// / ,T/ /[ //,/////I/ I �////'//////// E :�:��- !� Cn j//1/ /// I . 0 / �/,- -- -" fj� 1) / � ///// . . � FOR PERMITTING 0- -- - ANQ ACCESS OA , , // lel /, � I / ,/ I I 1 . ��;...I 1;-_:-:-,��.." , 0 z - ') / I l �- -�`////// -_;--, - .'N - / I I / //// 1/// , .�� I � \ . , // /// /,� --// /I 0( I/ ( ///// ,///Yr / - ////��//;;;�;Z�,///,/, , I/ 11111killij, 2 IIi..- , , , . , , � �� . . , ,-�� . �\ , \ I ;; : I ////// �// - )) \� t �W � (/11 /////// ��'//// , , ,�- ---.4 1 hereby certify that this document was %,- La Cl) 0 �� , , - - - - \ / - - , 1� ;Y '�\A ,I - I \ � \ � - I �//// �' �////, I I � . CAPO',,, � I\ \ \ �\)\ \ 1-1\ -1 / I l� \\ I�-(- /j 7 �\ \ Z"�, ) ') \ �'Y - --'-'-* ,�� / prepared by me or under my direct personal ,,x, LU < I I � -/- :;�"! I �,L I /// f \ - I \ � \'-� I// �,,////////�z,�,///- - - -�,,;�� L) � \ - t f,--- 1 / / � 1110/6 / �� - -�-- � ;"-,-, 1>51 - $ supervision and is correct to the best of -z' ,V .- - C, I - I � , I � �/ ��/ / ) , ) / ,//////////�,�,�-�, I, \ \ \ I -I/ I- ---- - 1-. I Y - U I -�Ofc) . / \ � \ ,� � " - , ],//,(�--�- / // //111 )/ �/////////,-,--,,��-- .� /// / - -1 . �'. �,I/ ---z, *`�' .YV, -7" 7 -:. a. 0 \ / 7-,�" � , - - - ////////,/ , - -,�-- I W lr I I / -,/ � 7-�*-* - knowledge and belief and that I am a duly . '. .. --- licensed Professional Engineer-.---- -..- I - I,/ - \ I � /'�- �-' /// 1I 11 / P/ /,///////////�;; '�- --`�FS EAL" -*" ' � \ II � I' -- ,,-,��/�)/I /////� /, --�11- I - = ) \ \ / // -::--:�,1,/ // h -- / . . 09-- - - . - ///goo, ) �/I ,a/ I� � I�-- \ 1, //, I \ ,,N//////////,,," ///900Z ,�-r;. -517, - I - --�:_ laws of the H - =:r I 048820 - CC- - ///////////'///// - ,:� I , � /// - - I:-*- I---, I '' \\,�,\�-/-,�'// / I I " � � Ir .... . L( .,. , Ir- . _ ,-\ I I i I I I . 44 -+- I I'll- I - // , Il----/ ) ' ) , I') ) 'f \ � / ( , / /`Vl,fj(/I - / ----6#6-- - 11 �r.. '1:7,- - - .1 -1 / / / , -- - -P'-\"'A I, I / 1 , ,�--- --, - -- S-,- _i� V=r I // I - -----��7----- I I -� / / I d--/ // , I I((/// / j / I I�\ /// / �"W � AV, " / .,�, -t� , / - -- (signature) -, -x/ .,-I,�-.-,,,;Zt-.�- I /1�11 /751 :-5-*Z-�--- \,W,1% - , , , -- -� /I �, \---- - ,�, / j � j -- J/,- ))) ; I / / / / / I I 11111f�\Q, I I, � ,- -- , I %. , , - -, �/ I ,� Date: January 15,2024 "o,,,,- N " . / A�l 1'�1�1---_-�_ ; I / / /I I I 13-040 �, i � -), / - I --�, f,WB * `\ /I �, -lk" � , - )Ijl\W1, / / - %� �_ �� -- I / %all..j I --- / / ,/ / \ --- , ,,,/ , / I \ -:�-" 0 I - _::��6�\ 4.1"-_5 1\ -o--- �, / ,/ ) � � - �� /// t I I I � �I \ tj;lilii.,� \ - \, - --O--- � � --/ /I - 5�:1::01 It, ;Ill-, / LL==%, "/- - -k. - - 0 - - / 11 �, �r�-,,�-k,----kFI-ti-El -- - / I . - ,-�---- --- \\ - - - - - - I I � / � H / \ ,-r'�, M ----- I -�-/---- -:� , \' - ---� -- , -�, -�-- �-- // I- \ "- ,�� I / ".""""� -- -- , ; - -, - -- - A z--- I ;. ; --\ , ;;�4�7�- 2 \ I , I'll -, /-- /��;�/--- , , ` ��- - �-- � , � , 7�-- - - 1\\\- - - ---, --�� / N -- - /-j- � --- // , --- - ,---,--.----,,--,,�,�,--�-----��,/,%"",,--- - -� \�, �-,&-, \\ \�\ F A?,,,,,,-,,��--,-��,- r,, I,/ -1 I I I � I t I I - -- ��- -�----- -- ////f I,////,/If / I / / ,- \\\, -1 - / - � /, I ;;01/// I / / , - ," I - -A' i I I j / --- / ///- //�:- -- � / / �/,\ i- � I *!'/ , f-�-- - /, �, //"- ,/ \ V ,� --- '\ --- -� SHEET NUMBER - ( -- -- - / / / \,�-111 \ ---� --I " - ;'11/1 - 49;w�/ ------ - 1, I \� ;� / - �- `1 f / - / / /JW�\; � -�� '77�- � r / I 1-�- \ - I 11 �, / / / /// �11-�/-�z , / I / , 0-,-'--��-J�\- -- ----I \ -:��--� 11 - - , " / � �/ I - \� -- _:�f � � 1111�0 , ( / ,L,-�/ -- -- -� - ;� - � -,� - -�11---"�, /- - i I / / / -� / ill )?- ::� I - - WASTE ROCK PILE - PHASE 1 X, ), /' WASTE ROCK PILE - PHASE 1 / / // ___-, - � �, ) 11 I \ /--�,\ -- I- 7��- / / ( ) / / / / / " -- - I Z�:' , - --" ----- A�Y// -1 �1 - " ) /,-////,��-�- 1�) / / / // )�I � I(�,-\-'----,\'� / / I / -- - /I j)�, � �(�_�7\_��,__-,\L_ - -- - 7�1,,- I I I , -� --�-�,F/,' - / / 11 ---- - ( ,-�/ / , - -7 -/ ,/ / ", /I I � / // / // ,--I-_ --�-�- ,///I� I I t-----7- 1 / / / / // � -- - _---_�- -- , --�1) I !`� nz_ -- - I -� .�� --Z-��--�-I/-/ �, / / / - - -/ ,J/ I I /,;A/I ) ,--74--,-��-:�, - - � - ---� / J, , "I , - - --- - --tF-1� -_� - I / I - � � / I (f(� I -� - ---- �-��---- -,��-�--7:��,///�/,'�,- � CS-3 -- � -�:7-=f��-�:�-/ � -- - - ,� -- - / // / 1� / / / /' -- - � ,�-,--5 ELEVATION 920' TO 960' 1 / / //, - - � , - ELEVATION 960' TO 1000' 11 / / / / ,/ //"� -----,��- /� -- � I ---- / / / I / / // � - - �, ----�---:�/ / I � \ _:----7--- - - -7 -- - / - - -----,976'I // / ///l// / ) I I,-,-- -- -- - -�- - -- --� - -1� / / \ / / / - - e I I -��---- - -<,�X I- --- /,� - - - - --� :�� -� - - - ,\ -\1 - ----- ,�-I " --/ / \ / / / .11 / -Z - - --- -� , /-�-i - , , -- - CONSTRUCTION TIMEFRAME: 4.4 MONTHS / , / ( �� ,( :��--Z--� x ::_ ----�, ,--,�--�� z CONSTRUCTION TIMEFRAME: 2.3 MONTHS � // / � � -�-;� -� - ��:- - - / - �, 11 ,z,z�-��,-;�-- �/ ,///) (/I---11�,--- -- - �-� I/- - - -- - , '�-- - -- , / �, ,Z,--- -� �, / / ////] /� -_�---�- " 1� _ // 1� -� /// I ) - \� ----�/, � /�� , -1 / I - -�-� � V- ) --�- - - -----,"�: / ) // // / 1-: --1�-- - --�- - - / / / -� I-_--"-��,-�--�-- ,I/ / ,,,',,��--�V-- -- '/z,----- - 11-,,--=�� , -- ��:�-/-"/�� 'i-L-A .. . , ' ' 0/ , I I -----Z�,-, ,1/ / 1111 - - I - 1::��- \\ I /I ,/,f/ , , I - \\ � , -:i_ "// - I �*a I .� IIIIIIIIIIIIIIIIIIII / \ \1 \PLAN VIEW rf s/' /I / / / r ' / /�l'// �/�� /tib//// - \ \ \� 1\ \\\ � �_---,� ,. 1111111111\1\ W -,l \ 11 \ / -� � ",/� / / / / -, / / /b l/ - 1\ \ \ � 11111111 1\\\ x-x ;l 300 600 900 ,- / / - -/ /, //,/ >// //// ' - \ \\\\\\\\ a b m� \I\\\\\ '-/ _ \ _ - \ \ eti \ ( / ' / / / / / / - / /-- /; /,% / //// - \ \ \\\\\\ \ aam e•k' IIII\1MEN 1 \ / - / \\ /� IliJ/ \\ / ,e' --�/ / /// � / /// \\ \��\\\ \\��\ / II II - - - \ - ---�-/ ---� // � / ,fix' / / i� / I �� \\\ \ ��-1 / , \\\ \ \\ \ \ \ \ \\\ '%--','�' �• ,x - � ��`= \ I I \J�il / � / 1 / / / � ---�-� �" / / / " �/ ( - - \ � �\� 11 1\\\\\\\\\\\\\\ ,�� ✓ - SCALE 1 - 3�� / - \\ \\\\\\0 - I VA1VA v � c _�_ l,,iV 11 �i � ��-�/ � i' /��, - // / rr,/ -._IR v � AV / Jf II 11 � I�I I ,• �,�j 1 // - � l °`� / Vv �` --�� \ 1 / �_� � i i� � _l�" / x// f-IF � 1 / ,';,� 11 III �� / l/ -� �l o / \VA � � �� / "� i� I /- �__ � �_/ � /-_ / / / i •+�--x= -N'� �/ '� - .-� ... � I � lII � I 11,�t II II �1I I � / , /// � -'`� ( 1 =�� - �\ � �'� 1 I -= C_i / ' / / '+�*-�- '''"� -,<_„/ � -•�. CFI I ��„ /// / I l 1,�h_ � II II III �IIIII k, �% /i//// - �``"!-'`� (/x 1AI11111 _� � V1 j plc 1 �� I/1 /� ��-_-� �- // /i / 1✓�l � V !1 I IIII I II I l I I �� ;/' - a,,_ �� - - �� / h .( � � / / '� � \ I I, 1 I, I ;< ��/ � /=�� ///i � � �� A•� /`�i/ /_��==�� \- _ ., / i �II 1 1 i I I � III 11VA �, ,,v �i/�//i/� A�`� / %_��__ ��v Z�_ /� �� -�// � - - ,��+ �- �I :� . � �I / \ \ I 1 1 I 1 v v� �Y� / -- � �., / I 1 11 f�' AVA vti\ v ///� -%%-�� /j ii A/ �.A �rtt/�. . �. . . . I V A\ V A ) _•��n /////�-� //// �_��_--��\V A\VA1 �:� /�i . �` / �� A \ \1 / �� 5 /j///o -/�== �� j//i i>I � A 11 � - / I�, / :/� . . . . . . � lI 11 � � � �_/ �-- ��-� '/i -----� II � \V A11 \ � � 1 _ �� // I\V � i �,,. . . ./'.:•' .' ,. :•. .�.• . v \ I 1 1/l 111 /// / � 11 f �/// ' -� ' / �.,,�''�. : __ _ e�///-�� _ _-- �I Iw1V A\V '�/ / 11 l;,r � / � . . . .�4'•:•.� � A I l I � I I� �,-_i - ��_�:_-;_�- /�/%ii / / . . . . . . v I / I -- - v ST ,4 -_-- // S .� / ," - � - - i - ---- - - - �-� � < --- - I ;�'��.- ____-__-- -,- - - I I I V ��V A � _ / � � �" / � �� V I V II III� � � — +.� ,.. '. '.'.'.'. '. .'.' . . .� !. \ \ \ � � —�---- — / � _i '.'.'.'. '. .'.' .' .'.' � '.'.'. y \ � � � I � � w -- ` \ / I 1 \ \ \ \\ \ I � x:� - - � y� �� \ �\ ''�� I I 1 ♦ - l �( rr I I \ � A 1 \ \ 1 I C A STD � � �' �. .- . ' . '-' : .-: ' �-' ' .- : :-:-: �• -• . . .-"y, ��I I � V \ h �. � 1 �1 � - / _ /,� -� : . : : .-. -.-. : . � � 1 I � ;� __ - � �� / ,-� v vv v,�vvvvv � -,�;- / �, ST10�� t / . . ._._.� ._.-� : _. . ._._. ._ � I I 1vv v v II v�=� - - , � � �,. LU �345 %�.:. :•:•��: .•.• .•.� . . .�.-.- .�.-. . "�:- `�:� ..,',,,: ) I I I _ /N+ / � � 1 �� ST� _x-x,- � _ _ _ _ •. .�'�'� I / I \\�\ I A / ;,(; � � � -O-�- !� / r .: . . . .' � .' . .•-�..• •.: y/// // / 1I \\\ ,,, � \ � vv � / ( I 1 v��,�� / I � Sri - � / � �.� �1.�.�.•. .... .... i . ... . . . . . . . ..�. . . ..... . . . . . .. . ..�.�. .'. .� / / ^� //I �d �, I I 1 V \1 �� A V 1 �v ST1 03 vv 4' v LU - - - - - - - - - - - - . . . . . . . . . . . . s J / / -- ��AAA V \VA V � �'� �� y � � ��. . . . . . -.� �. .- •. .•.-.-.• • . .•.-.-.- '�. -. .�.�.- �!- r .•.-.-�.�.-.- . . .-' �.-. .- . . . .� . .�. . .I�rV''� //-�' / � .. �/ l 1 / � A A �tea-, � � -'< -� V A I � �_ __.• �. .•.•.•. �. .• �. .�.•.•.� � . .�.•.•.� �. . . . . . . . . . ./°. •:•i'/. . . �.-: / / / �I 1 I I � I I // . . . . . . . . . . . . . . . . . . . . . I /v 1, � \ \ . . . . . . . . . . . . . . .�. . . . . . . . . . . . . . . . . . . . . . . . . . . . � / /// r � ., A / �, � �\V A V A�� 1i`: A Al 11 '' T .'. •. �,�: � f. i.'. . .�'�. . . .•:-;/.�:�:- �e� / �/ � �� / - _ /x f// / -_ v )I(✓ A 11 � 1\ �� N f � / �. _ / 1 v / A v 1� z r ' V VA I / \ \ 'a / A \ �i I 11 I � . . . . �.� . . . . . . � . . A ,� �/ 1 1 � I I \� �1 II .-.•.•: .�: . . . . . . �,:-' .,, .:: : :: _:=-• . . . . . . . . . '+; . .•.-.-:•:•'•'- . . . . . . . . .•: .-: �-:-'�' :�' .•:�:�' .-:-. :-' . ' .•:�t'. I l 1�� . . . . . . . . . . . .�- . d . . � v V 1 I I v �,,.� � A I � 1 I / . . . . . . . . . . . . . . . . . . . . . . ..,- . ,� . . . . . . . . . . . . . . . . . � . . . . . v v � ( I v � III � /(/ �v 1 I v v v� 1 � I v I t r . . . . . . . . j :". .-. .�.��; . >1 ( vv1 / I / / 1 I I��x � III > / I . . . . . . . . . . . . . . . . . . . . . . . . . . . ,, . . . . . . . . . . . . . . . . . . . . . . � . . . A / // 1 \ / /�/v \ V A V v ��AI III � 11 II - - - - - - - - � - - - - - - - � �---- ' �'� \ � 1 � o � 1VA • / /�/\ \ V \ V � �--.A .I � III � I ( II . . . . . . . . � . . . . �.. . . . . . . . . . . . . . . . . . . . . .. � . .�-- . . A �= 1 / a I \\ --- � 1 I � I 1 � \ �� l V1( . . . . . . . . . . . . .�. . . . : '�-.� � � �� . . . .�.�. . : . . . . . . . . .-.• • . . . . . . . . r . . . . . . . . . . . . . . . . . . . . Q / o / / I � x _�- - - - 1 ( \ I .s-'. . . . . .�:•��:.. .-.:.- ::...- -. :�:�� '�' �� AIli. ( \ v\\ I I � - / // / / � � _ '?� _ - - �-- 1 \ j I . . . . .-.•. .•. . .•. . .-. . .•. .� - . . . . . �. : . .. . . . . � �'!- � ( � I I -� l l I I II 1 TO AW- rJ. . . . . . . . . . . . . . . . . . . . . . . . . . VA\ \ - �o� A / \ V\l I I I I \ � I \ \ _ v 'l\ I l II IIII �. . . . . . . . . . . . . . . .�. . . . . P r� . . . . . .•.-.� .-.�.�. . . � 1 1 I A\ � v �_� 1 � 1 . . . . . . . . . . . . _ - . . .i ;.; V`"� / ( \ \ � 1 . . . . . . . . . . . . . . . _ 1 1 -, A v �_ - � v1 � �,� A `-. A I l V I . � . . . . . . . . F . . -.-. ....:�:�: : : . . . . . �:•.-:-;r.�:•' . :�:•' :�' .-.- - ,�, �, `:- A, \ 1\ �� 11V A 1 I f . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F . \ \ I l � A �, . . . . . . . . . . . _ ( \ 1 E , . . . _ . . . . . . . . .. . . . . . . . .. . . . . . . OC . .fLE: . . . . _ ROCK PILE A � 1 � - � v vv v � �=.� . . . �:�: :�: : .-. , �, / � � VA \ �� A\ I I - - - - � � - - - - - - '� - - - - -� - - - - � " - � - � � � - - - - - - . . . ,�' _ . . . . . . . .� 1 I I i / I � O \ v � N IIII . . . . . . . . . . . . . . . . . E . . . . . . . . . . . . .� . � . . . . . . . . . . . . .�.�:•� .r I I v v I 1 - 1 - 110 t. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >� I 1 ,� l � _ .t_ . -�_ _�_�,.:. . . . , 11 TZ HIGF� _ . . . .� . . . . . . . . .�. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -. :�-�.:•'•:�.�: : : : vvv. I I,_ .� II �. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I II 1 I // / /� I . . . . . . . . . . . . . . . . . . . . . . . . . . . . � . . . . . . . . . . �': . . . . . . . . . . . . . . . . . . � / 11 I I I1 I/ / // \ � � I '•'/r s %/ // J / / I 1 I �I I 11 / l / 1 /III I l . . . ,.•'. . . . . . . .`� . . . . . . . . . . . . . . �. . . . . . . . . . . . . .WASTE'.R�,O r / / / 11 / // / l /i / l/ /i � � � � r . . . . . . . . . . . . . . .� . . . . . . . . . . .� . . . . . . .� . . '. ...... i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . � . . .� .� .-.�. '� -: .�:•'• -' l / 11 l l / / / / / � 1 e't``' AN GC / \ V V I - . . . . . . . . . . ..�. . . . . . . . . . .� . . . . . . . . . . . . . . . . . . . . 1 . ; - � / / l/ � J VA 1 II/ I 1 . .- �` �,��"�;, , . . :-��:.-I .�:•:•� :- :� t � � /i / /// I v . ............ . -,�r � *��%`%� .,�� v,��..�.. -. -..-..-...�-„- -.-....-. .�.-.-. -....-..- -. .-. ..-..�. .-....�..- -. -. ..-..-.-. -.. -r� / y,.. �� ,{ �;;� —__ // ///j// / ) I I __ / /11I I III////l// J/ //i/i//ii////////////////�/�� / V A A 1 I / ,*M:/�-//l •i \ . . . . . ._ r r� /r .ma, s ..� �� / �� . . ..•. .:��. . .-. . . .. . . (/---—_ p /l IlI l IIIlI I 1/ / /— * , / . . . ._ � � � ��j y . . .� . . . . . . . �•. - _ .-�%.._' / - / l /// � , / I (- / / / Ill // ///// /� 1 / �, / _«-f � � i�x x •.•�. •.•.�. �. •.�.�. -. .. . . . . . . . . . . �i I , --- / 11/// /j II II -__/ ///l l �� I// / /// //// 1 V I I / �. / � � `�- ,,�;* � ,Y ' . . . . . /� / // / // II -- /ice//ll ��„1 / / / �%� / 11 r � �, � /--- /�� / //y� : : : : " : " . " : : . : " : � ' i ,�/ / �_� sae / / 1 � 1 I I � / I // /I / / Ill // / 1 / � +/' - -- , 'f / � � -.✓ i / _/��a- 1� _J 1 I � // I1111 // / �. >;�B-�`l - � / �==--/�' /� - i� �. �.•.�. .- .•.�.• •. �.,r I 11�'�,,I .- � / ��/ / �'---'-/ /// I Ir-- / / III 1 )1 \ I / 1 A Joi//1111�111(llll // / / / �. ;,� /��;-- � /'�'# / � �-�" � _;�. / � -- �/ // / / --/ / I ( / ( 1 >oii///l � II(ll III\ - �� if e � � / // � S � � ;-— � t;, - / OB-32S '`� - / jI ll lI I II�IWASTE ROCK PILE PHASE 1 WASTE ROCK PILE PHASE 1 ELEVATION 1000 TO 1040 I ELEVATION 1040' TO 1068' 7 / CON CONSTRUCTION TIMEFRAME: 0.7 MONTHS STRUCTION TIMEFRAME: 0.1 MONTHS NAD-83 NC-SPCS Z U N O W O S O 3 O \ n J (n O W :E O Q a- O O z � O � w W O 0 Z z Y LLI W z O O W J n Q w Q O w W [if = Q O [if J 0 0 O 0 Un 2- Lj- Q V Z Z Z - J U Q W Z W Z v JCY O = aw o v O 0Z � Z W W Z � O 5 V J Q O H Z Z U) 2 O z O W Q U FOR PERMITTING ONLY a O 1 hereby certify that this document was .% prepared by me or under my direct personalQ` 55� supervision and is correct to the best of my 0� knowledge and belief and that I am a duly ; licensed Professional Engineer under the = SEAL _ SHEET NUMBER laws of the Statib 'orf !or h C rolina. 048820 ignature) `'�� ` CS-4 Date: January 15,2024 `��<< B\0 ��•' FVV" Z :) ' 10 J C PLAN VIEW � / ,'�j vvV1, STREAM CROSSING NO. 1 / /� l / / / / / / V A\ \ 0 200 400 600 / ' / ' = / / / / / / / I / am — / SCALE 1"=200' //// / /' — — / / — _ � / i}l 1,� / _ v v� vvvv vvv BeaverdamUP- / /// / /i vvv vvvv \ \\\VAA\\\ / / ,, � /�f U \ \ \\\\ • J� � +;X �': w /// A VA \V , 1\VAA f VAV I NoW NS K2g�1 \v\\� \ � �, , (a � v v , � II ,: , = 1 � a / �- I 1 / / � III � • — .-� L� �t `\ ST1 Q � w — v�v�� — �Xu- / Ix, v� / X; ST - / I \ VAVA \ \ IIIV vvvv �vA �� „ / I v \ \ \\ I \ I \\\\ \ \ \\//11 ' ' V \\\ \ `�\k`\ _ - --- '' • / r .. z' � / / ///�" /i — _jai �y .lWl 9 \ . �y/ / / I /� I1 I �� / 90 w � V — v _ /// �/' 1 V A �vAv vv v �alll kX✓III � I�I ` I� I III � I I / / � -- a �• l � . � .� � =�t I/�� lo /�jkV\ '�\ \ vA\\vVA� � � \ �1 �\ \ NAD-83 \\\\\\IA11AI �� \\ �� \� \I �TI /� \� NC—SPCS `� � 1 I - /� \ w . O o� v A v 11 v 1,11 vvv �, vII 111� qr �.- � '� "v III ST 110 / /r � �v V I 1 1 I I I I�11A v�% / 11�►��\\�\�11�� .I"I� � � . -� .-. - � J � �� 1 I I �'� �I I I�III�IIIII V � �� z Q o III a 1-Z HIG1-HS0 RE/EN V � - - �r �-� �'� � �� - �'` � * I� ;r Iv I v �� v�� — � � �� U w o Q a- 1 1 + I �' 7 /j�✓ '� ' � � �'" �"' � �;;J'/ / 11 l/ I� �11 V AA \V A \\ � \ v��x. ;�% ll/ 11 0 17 0 17 � w � � z � Q w k- Q o w w � z [if/ .� Q U w�� ' / ''�/ o U o r� � '.' � � - -. �� - , / / /� — // Ill/ / WASTEI R/vOCK P lr '� l �=w '��,r y . ;� ' � w ; - ,+;,;-/ I ; / /vv ,/, // , //l /// l 111///////i/ll I /�I ,/ �N,�RANCE AND, � �`R CGF OA \ , / / / � '' +;� / / / Ill / - - / lI III l //// //l if T %%/j \\\\ 1I 11 / // / / %�///// // I \ Ill I // / j /// // Q O Z T W W i /��qy,.� _ , I_ IW D *� Oil- s / r - �� ' � ` / / / / lIA / // / I / / � lloll111111 Z ( J (Y Br2`l11�111111 \ 11 I \\ J - W Ilo , , — / �-- f� ,, / // / III \ O Z - - ,1 / �' v� + / / / / / / — �/ � ) 1 / / / / � / /// I VII —_�. __— /� � OB-32S �� /' ' / � I /I/ I v A I I I 1 I v OC �1 1 ) 1 C / / / / /I I I II l O Z � � Q 1 / \ � ll / / �f \� \ \ �� / * T \BK2 _ — _ - - - - /� / / / _ / / j� = /� IIII I I / 1��_�, \ , � xf/ - — — ,% / r � � � _ / / / ;�_ - - - /o/ � —/ / �/�� — / I lI / l/ Z I11111 � v — / '� �/ / IIII 1 / / / /// I 1/ _ W 0 III /// 111411 / / / / / / / � - - — - - --�/ / 1 III \ �%/^1 — ` J� _ � n \ ✓ \a — , '�-�- �' — = —,+�'ij,-= / \ / / // / l / / � / / / I i / l l � ZC IQ 'H1 WASTE ROCK PILE — PHASE 2 J O o H ELEVATION 840 TO 1090 Z Z CONSTRUCTION TIMEFRAME: 2.7 MONTHS xt — \ \\\ �� / / / �/ ./i �( — _ � — �/ — 5 Z WCl) 0 Q NOTES: FOR PERMITTING ONLY a 1. DRAINAGE AREAS AND SUMMARY TABLES INCLUDED ON THE EROSION AND SEDIMENT CONTROL (ESC) PLAN SHEETS LOCATED WITHIN THE ,1ti,1„1, MINE PERMIT APPLICATION. � ` +'�. I hereby certify that this document was .'��'C��''r. 2. IN ADVANCE OF PHASE 2 CONSTRUCTION ACTIVITIES(STRUCTURAL FILL,COMPOSITE prepared by me or under my direct personal supervision and is correct to the best of my LINER SYSTEM,WASTE ROCK PLACEMENT),A MODIFICATION TO THE EXISTING CLEAN knowledge and belief and that I am a duly Q �+ F WATER ACTION SECTION 404/401 INDIVIDUAL PERMIT WILL BE REQUIRED FOR THE licensed Professional Engineer under the = SEAL _ SHEET NUMBER STREAM IMPACT. - 048820 - laws of the Statibof !or h C rolina. = 'r — ignature) CS-5 Date: January 15,2024 `��<< $f' � �•' EMERGENCY SPILLWAY �-�-�� ✓ LEVEL CONTROL SECTION EL. =812.28 ��+ / f` � Q i� .0 EMERGENCY SPILLWAY DETAIL 00�.�� EMERGENCY SPILLWAY DETAIL �i l LEVEL CONTROL SECTION EMERGENCY SPILLWAY CHUTE SECTION = CHUTE SECTION 00 00 00 / N.T.S. N.T.S. H 001.00ft. Freeboard O ��jf 38.80 ft. 0 20 ft-.-- J I� I� � 'l.t� 1 94.88 ft. 1 y 1 i ��00 � � �� 2 z 34.00 ft. z OUTLET PROTECTION �� i �� / 88.00 ft. 0 72 ft 1.00ft. Freeboard Channel Design (Non-Erodible) ��'i% � _ �j� Channel Design (Non-Erodible) ♦�� AI � �� •O Channel Type: Trapezoidal, Equal Side Slopes PRINCIPLE SPILLWAY �i�� + Channel Type: Trapezoidal, Equal Side Slopes Dimensions: Left Side Slope 2.00:1 NAD-83 ► Dimensions: Left Side Slope 2.00:1 Right Side Slope 2.00:1 72" SQ. RISER W/TRASH RACK 01 i __ NC-SPCS AND 106 FT OF 48 IN. CMP i *� 1�- ��( � / Right Side Slope 2.00:1 Base Dimension: 34.00 W .0 __ �X X �� Base Dimension: 88.00 Wetted Perimeter: 34.88 i 00 � �� Wetted Perimeter: 91.22 Area of Wetted Cross Section: 6.79 � i� �� Area of Wetted Cross Section: 64.33 Channel Slope: 50.0000 i� Channel Slope:0.1000 Manning's n of Channel:0.0175 i ij, �. \ Manning's In of Channel:0.0175 �. ♦ U) Discharge: 136.89 cfs p ` '�� / Discharge: 136.89 cfs Depth of Flow: 0.20 feet U � � - �� V / Depth of Flow: 0.72 feet Velocity: 20.17 fps O � �� Velocity: 2.13 fps .40 Channel Lining: Grouted Rock Rip Rap G .10 III Channel Lining: Grouted Rock Rip Rap Freeboard: 1.00 feet N Freeboard: 1.00 feet N ' 00, 00 ` , Q� � I �CUTOFF TRENCH ' 00, SKIMMER EXISTING GROUND (ABUTMENTS) ' Stage Storage Curve TOP OF STRUCTURE > SB 1 (814.00) d FILL MATERIAL 814.00 LD $�3�5 ACCESS R AD 2' MINIMUM IF NOT CUT TO BEDROCK a OEL' TOP OF BERM SEDIMENT BASIN - Q � i - - - 812.00 2.28) � in � _ LINER SYSTEM 1 POROUS BAFFLES (TYP.) / LIMIT Zie/ 1 810.00 � � le 2' o 808.00 S B NORMAL POOL EL. 810.18 / / IC SUITABLE EARTHEN MATERIAL 50%C EANOU LEVEL( 07.17) / COMPACTED TO 95% OF STANDARD w 806.00 50%CLEAN OUT EL.000 . 807.17 i / PROCTOR MAX. DRY DENSITY W W W W o SEDIMENT BASIN NO. 1 PRINCIPLE SPILLWAY 0 0 0 0 WITHIN ±2/o OPTIMUM MOISTURE 0 0 0 0 OUTLETPROTECTION CUTOFF TRENCH DETAIL 8040° J J J / / CONTENT � Outflow w w w w c0 / N.T.S. Total Discharge: 159.64 cfs F , / 802.00 C a a a a T i / Water Surface Elevation: 812.28 ft 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 0 SLOPE DRAIN :N w w w w Tailwater Elevation: 0.00 ft Detention Base Elevation: 0.00 ft Accumulative Storage(Acre-Ft) 0 5 5 5 5 PLAN VIEW : SEDIMENT BASIN NO. 1 Outlet#1: Sediment Basin 1 Principle Spillway, Drop Pipe Storage volume computations N o 1 SCALE: 1" = 50' Riser Top Elev: 810.18 ft g SB-1 p o N N Riser Length: 72.00 in Riser Width: 72.00 In ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE Z N M � Orifice Coefficient: 0.50 (ft) (ft) (ft) (ac) AREA (ft) (ac-ft) STORAGE INTERVAL 2 FT X 1 FT ANCHOR TRENCH Weir Coefficient: 3.33 (ac) (ac-ft) (ft) 850 NORMAL POOL EL. 810.18 850 850 850 Culvert Length: 106.00 ft - - - - - - - - - - - - - - - - Culvert Diameter: 48.00 in 803.50 N/A N/A 0.7808 Q25 HWD EL. 812.28 NORMAL POOL EL. 810.18 0.8368 2.00 1.6530 1.6530 2.00 SKIMMER 805.50 N/A N/A 0.8928 EXISTING GROUND Culvert Invert In: 803.50 ft 0.9400 1.67 1.5653 3.2183 3.67 50% CLEAN OUT EL. 807.17 50% CLEAN OUT EL. 807.17 Culvert Invert Out: 802.00 ft 807.17 N/A N/A 0.9871 0.9495 0.33 0.3122 3.5304 4.00 Q25 HWD EL. 812.28 EXISTING GROUND 807.50 N/A N/A 1.0061 14 ft. I L Culvert Friction Coefficient: 0.02 1.0641 2.00 2.1063 5.6368 6.00 14 ft. 809.50 N/A N/A 1.1220 14 ft. _ _ _ _ _ _ _ _ _ _ _ _ -- CREST EL. 814.0 - - - - - Culvert Entrance Loss Coefficient: 0.90 810.18 N/A N/A 1.1622 1.1421 0.68 0.7766 6.4134 6.68 800 19% 1 7 \ 800 800 800 811.50 N/A N/A 1.2403 1.1812 1.32 1.5634 7.9768 8.00 BOTTOM EL. 803.5 3.0% BOTTOM EL. 803.5 812.28 N/A N/A 1.2877 1.2640 0.78 0.9859 8.9627 8.78 2 FT X 1 FT OUTLET PROTECTION 2 FT X 1 FT ANCHOR TRENCH 14 FT ACCESS 813.50 N/A N/A 1.3618 1.3011 1.22 1.5922 10.5548 10.00 ANCHOR TRENCH CREST EL. 814.0 814.00 N/A N/A 1.3804 1.3711 0.50 0.6829 11.2377 10.50 CENTERLINE CUTOFF TRENCH CLASS B STONE PRINCIPLE SPILLWAY SEDIMENT BASIN SEDIMENT BASIN 72" SQUARE CONCRETE RISER W/TRASH RACK LINER SYSTEM 2 FT X 1 FT ANCHOR TRENCH 750 LINER SYSTEM AND 106' OF 48" CMP 750 750 750 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 0+00 0+50 1+00 1+50 2+00 Cross Section A-A' Cross Section B-B' Scale: 1" = 50' Scale: 1" = 50' N Z 0) U O 0 RISER DETAILS 2 FT X 1 FT ANCHOR TRENCH RISER BUOYANCY CALCULATION J z < 04 Demonstrate adequate stability by showing the downward force is a minimum of 1.25 times L`' Q Q Skimmer Design - Sediment Basin SB-1 TRASH RACK EL181f 4.00 the upward force. Q Z m Desired Skimmer Drawdown Time 3 days w d SKIMMER 1'FREEBOARD Downward Force(structure weight)> 1.25 x Upward Force(buoyancy) z z Y ,;; w z Desired Skimmer Drawdown Rate 32,832 cf/day p❑❑❑❑pp❑❑❑❑pp❑❑❑❑p N Q w � Q o LI-1 EMERGENCY SPILLWAY DEPTH EMERGENCY SPILLWAY EL.812.2 w of = a 0 Of � Skimmer Size 5 In ❑❑❑❑��❑❑❑❑��❑❑❑❑� 72"Square Concrete Riser o o 0 o U) a_ � NORMAL POOL EL. 810.18 o❑❑❑nHHnnnnOo❑❑❑❑U 1'FREEBOARD Height=Approximately 7' Head on Orifice 0.333 ft - , MIN. I � 2 2 Weight= 17,170 lb EXISTING GRADE 72"SQUARE I Calculated Orifice Diameter 2.865 in CONCRETE ' 1 1 Where: Actual Orifice Diameter (1/4 inch increments) 4.25 in RISER 50% CLEANOUT EL. 807.17 6.68' I • • Riser Weight= 17,170 lb Actual Skimmer Drawdown Time 3.04 days \\ \ \\ \ \\\\ \\\\\\\\ \\ \ \ \ \\ \\\ \ \ \ \ \ \ 4'X 4' X 1' CLASS B STONE ------- I \ \ \\ \\ \\ \ \ \\ \\ \ \\\\\ Weight of Concrete Base= (Length x Width x Depth)x Unit Weight of Concrete-----a- 48 DIA BARREL CMP Required Volume 73,260 cf �� 1 a• ° ° 11\1 Weight of Concrete Base= (7 ft x 7 ft x 0.75 ft)x 150 Ib/ft3=5,512.5 lb Q d \\ \ Structure Weight= 17,170 lb+5,512.5 lb=22,682.5 lb Z J BOTTOM OF POND EL. 803.50 d . d ° •° ° J Q • d° • d° ° • d °° ° Buoyancy= Displacement Volume of Riser x 62.4 lb/ft' (n O H WATER ENTRY UNIT SEDIMENT BASIN STABILIZED OUTLET a t LLI WITH TRASH SCREEN GENERAL NOTES: ANTI-FLOTATION BASE (IF APPLICABLE CUT OFF TRENCH Buoyancy=252 ft'x 62.4 Ib/ft3= 15,724.8 lb a 0 1. PROPER DESIGN MUST BE COMPLETED TO MINIMIZE PIPING AROUND DISCHARGE LINER SYSTEM ( ) Z PIPE. 2. PROPER ORIFICE OPENING MUST SELECTED TO ENSURE POND DRAINS IN LU CORRECT AMOUNT OF TIME. MODIFICATIONS ELEVATION VIEW Downward Force(structure weight)> 1.25 x Upward Force(buoyancy) J O MAY BE REQUIRED IF FIELD Z CONDITIONS WARRANT A CHANGE. ANTI-FLOTATION RISER FILL O 3. EMBANKMENT MUST BE COMPACTED TO DESIGN SPECIFICATIONS. ) N.T.S. 22,682.5 lb> 15,724.8 lb x 1.25 Z 4. EMERGENCY SPILLWAY MUST BE CORRECTLY SIZED AND EROSION PROTECTION (IF APPLICABLE LL ORIFICE OPENING INSIDE THE INSTALLED.5. ORIZONTAL TUBE WITH A 5. EROSION PROTECTION MUST BE INSTALLED ALONG THE EMBANKMENT AND AT THE CONSTANT HYDRAULIC HEAD DISCHARGE END OF THE PIPE. 22,682.5 lb> 19,656 Ib V O EL 6. INSPECT SYSTEM REGULARLY TO ENSURE IT IS FUNCTIONING IN A CORRECT MANNER. ' A 7. EIGHT SIZES OF SKIMMERS ARE AVAILABLE, REFER TO THE FLOW SHEET, CUT C L M ii SHEET, AND INSTRUCTIONS ON WEB SITE FOR EACH SIZE. �� NOTES C LLI 72 SQUARE CONCRETE RISER ANTI-FLOTATION BASE (IF APPLICABLE) _SCHEDULE 40 PVC PIPE >: � 0 (BARREL OR ARM) ARTHEN EMBANKMENT MAXIMUM HEIGHT OF FLOAT WHEN NO ° d ° OPENIN . 1. Portland cement concrete (type II recommended)for the inlet base shall have a minimum compressive Z ° d MERGENCY SPILLWAY OTHER STORM WATER DISCHARGE strength of 4,000 psi. LLI Q ° LEXIBLE HOSE (MAJOR GS EXIST • 4 STORM EVENT) ° °° ° • d ° reng p Z h • • d 2. Where corrugated aluminum or aluminized steel pipe is used, all areas where the pipe is to be in contact with FLOAT ° a concrete shall be painted with a black bituminous enamel paint. J O _ INVERT OF LOWEST STORM PVC VENT • • °• 3. Riser to be constructed according to the Riser Details. V 0 LLI -�- WATER DISCHARGE OPENING d 4. Sediment Basin Liner System to be installed per manufactures specifications utilizing batten strip at Z Uj - HIIH II GRATE (MINOR STORM EVENT) PIPE ° d • • Y p p 9 p TOP VIEW II LOAT concrete riser and pipe boot for culvert. Z I _ _ .. _ .. .. FLEXIBLE HOSE MUST BE \\ \ O Z SECURELY FASTENED TO ° 5. Cushion geotextile to be installed at locations where riprap is to be placed above the liner system VC VENT PIPE I STORM WATER THE WATER QUALITY 2 DISCHARGE DISCHARGE OPENING 6-0" 7'-0" (emergency spillway, slope pipe/culvert outlets, etc.). Q OPENING 6. Skimmer Sizes and Orifice Diameters are calculated based on the NCDEQ Design Methodology and will be 0 J OUTLET PIPE - - _ \\ `�� reviewed and approved by the Engineer once a Skimmer supplier/manufacturer has been chosen. LAU //a^� a 1\ --�---;. - LEXIBLE HOSE H L = 1.4 X DEPTH ° ° BARREL CMP I- TO THE OVERFLOW ° d �1$111101, MINIMUM LENGTH APPLIES d ° ° d • ° ° • ° • • I hereby certify that this document was yeti �Ap�� WATER ENTRY UNIT �i ��... SCHEDULE 40 PVC PIPE d ° d • prepared by me or under my direct personal .• 'L �. i (BARREL OR ARM) • ° ° • � • __ ------------ __ __ __ __ _ __ __I BAA. ° A. d supervision and is correct to the best of my �o� Q,1;,. • ° ° knowledge and belief and that I am a duly .•Q �sr 'g��.� - - - - SEAL - END VIEW SIDE VIEW MAINTAIN DEPRESSION TO licensed Professional Engineer - - ( MINIMIZE CHANCE OF g = SHEET NUMBER NO SCALE 048820 SKIMMER BECOMING STUCK -� ': DRAWN BY T. R. EVANS 10/10 PLAN VIEW laws of the St a e f o h Carolina. :Y •.`4�� ® J.W.FAIRCLOTH&SON INC. FAIRCLOTH SKIMMER DISCHARGE SYSTEM WITH OUTLET WWW.FAIRCLOTHSKIMMER.COM N.T.S. STRUCTURE TELEPHONE: (919)732-1244 (Signature) EMAIL: WARREN®FAIRCLOTHSKIMMER.COM Date: January 15,2024 ��r "`j %1" 02C0-G005 SEDIMENT BASIN LINER � SYSTEM LIMIT Stage Storage Curve \ - EMERGENCY SPILLWAY DETAIL EMERGENCY SPILLWAY DETAIL SEDIMENT BASIN NO. 2 \, \ 50%CLEAN OUT EL. 832.21 LEVEL CONTROL SECTION - ROAD CROSSING � Porous BAFFLES TYP.) CHUTE SECTION 841.00 A V N.T.S. N.T.S. (84P 000)STRUCTURE 840.00 3:B1 \ \\\\ Approx 75 ft. 1.00ft. Freeboard 839.00 O J ♦ V Cps ��.. A\�\\\\ 15.42 ft.SLOPE ♦ \�' NORMAL POOL EL. 835.00 1.42 ft. 0.433 ftft� 838.00 NCY SPILLWAY(838.58) EMERG DRAIN / 1 1 1.00ft. Freeboard J 837.00 ` � 8 8 2 2 / \ PRINCIPLE SPILLWAY 2 10.00 ft.- 20.00 ft. c 836.00 / ♦ 72" SQUARE CONCRETE RISER W/TRASH RACK o NAD-83 / AND 67 FT OF 36 IN. CMP CZ OUTLET PROTECTION .� 835.0PRINCIPALC-SPCS / Channel Design (Non-Erodible) SPILLWAY(835.00) LU � � � � EMERGENCY SPILLWAY Channel Design (Non-Erodible) Channel Type: Trapezoidal, Equal Side Slopes LLJ 834.00 / c5� �� ♦ LEVEL CONTROL SECTION , Dimensions: Left Side Slope 2.00:1 833.00 EL. ;38.58 Channel Type: Trapezoidal, Equal Side Slopes Right Side Slope 2.00:1 Base Dimension: 10.00 \- Dimensions: Left Side Slope 2.00:1 832.00 � ♦ �c� \ Right Side Slope 2.00:1 U) BOTTOM OF P ND \ Base Dimension: 20.00 Wetted Perimeter: 11.94 831.00 0 EL.829.00 y ♦ +\ \ A� ► Area of Wetted Cross Section: 4.72 U �'0 // �•\ \�� Wetted Perimeter: 26.34 830.00 - 'OUTLET PROTECTION Area of Wetted Cross Section: 32.35 Channel Slope: 21.3000 W11 Manning's n of Channel: 0.0175 829.00 N ♦ I \ \ \ � \ Channel Slope: 0.1000 0.00 4.00 8.00 12.00 ' C:) \\( \ \ Mannin s n of Channel: 0.0175 N � �\ �♦ \ / � � � � � � g Discharge: 99.63 cfs � 1 y / \ Discharge: 99.64 cfs Depth of Flow: 0.43 feet Accumulative Storage (Acre-Ft) 0) / / I EMERGENCY SPILLWAY Depth g Velocity: 21.11 fps • Q De th of Flow: 1.42 feet ♦ \ \ CHUTE SECTION Velocity: 3.08 fps / SKIMMER Channel Lining: Grouted Rock Rip Rap Storage volume computations / I Channel Lining: Grouted Rock Rip Rap Freeboard: 1.00 feet y Freeboard: 1.00 feet SEDIMENT BASIN NO.2 y ♦ ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE LD \♦ (ft) (ft) (ft) (ac) AREA (ft) (ac-ft) STORAGE INTERVAL a y\ B \ SEDIMENT BASIN NO. 2 PRINCIPLE SPILLWAY (ac) (ac-ft) (ft) pp SLOPE DRAIN to / 900 900 Outflow 829.00 N/A N/A 0.5738 Q25 HWD EL. 837.58 0.6083 2.00 1.2033 1.2033 2.00 Total Discharge: 118.16 cfs 831.00 N/A N/A 0.6427 \ ° g 0.6639 1.21 0.8032 2.0065 3.21 r / � 50/o CLEAN OUT EL. 832.21 Water Surface Elevation: 837.58 ft E32.21 N/A N/A 0.6852 CONVEYOR NORMAL POOL EL. 835.0 Tailwater Elevation: 0.00 ft 833.00 N/A N/A 0.7129 0.6778 0.79 0.5388 2.5453 4.00 CULVERT 0.7492 2.00 1.4845 4.0297 6.00 837.00.00 N/A N/A 0.8605 (C-I) EXISTING GROUND Detention Base Elevation: 0.00 ft 83 N/A N/A 0. 0.8230 2.00 1.6316 5.6614 8.00 605 / 850 2.7 850 Outlet#1: Sediment Basin 2 Principle Spillway, Drop Pipe 838.58 N/A N/A 0.9216 0.8910 1.58 1.4078 7.0692 9.58 14 ft. 0.8992 0.42 0.3755 7.4447 10.00 2.7 Riser Top Elev: 835.00 ft 839.00 N/A N/A 0.9378 2N Riser Length: 72.00 in 841.00 N/A N/A 1.0098 / \ 2 FT X 1 FT ANCHOR 7 Riser Width: 72.00 in o.s738 2.00 1.9405 9.3852 12.00 0 0 0 0 TRENCH BOTTOM EL. 829.0 0 0 0 0 DITCH NO. 5 14 FT ACCESS Orifice Coefficient: 0.50 Weir Coefficient: 3.33 CREST EL. 841.0 800 800 Culvert Length: 67.00 ft Culvert Diameter: 36.00 in C a a a a \ 0+00 0+50 1+00 1+50 2+00 2+50 3+00 Culvert Invert In: 830.00 ft o N 0 0 0 W W W W SEDIMENT BASIN Culvert Invert Out: 827.00 ft > N N N c I - LINER SYSTEM Cross Section B-B1 2 FT X 1 FT ANCHOR Culvert Friction Coefficient: 0.02 w uj u TRENCH Culvert Entrance Loss Coefficient:\ 0.90 - N Scale. 1n - 50' N � \ N 0 \ PLAN VIEW : SEDIMENT BASIN NO. 2 o N N SCALE: 1" = 50' 900 - 900 900 900 CUTOFF TRENCH 50% CLEAN OUT EL. 832.21 MAIN HAUL ROAD EXISTING GROUND (ABUTMENTS) EXISTING GROUND NORMAL POOL EL. 835.00 DIVERSION BERM Q25 HWD EL. 837.58 Q25 HWD EL. 837.58 FILL MATERIAL NORMAL POOL EL. 835.00 50% CLEAN OUT EL. 832.21 2' MINIMUM IF NOT CUT TO BEDROCK 850 SKIMMERRH 850 SUMP EXISTING GROUND r 14 ft. 850 f 2 ?'7 850 2' CREST EL. 841.0 14 ft. - - - - - L - - - - - - - - 3.0% 2'7 21 �14 FT ACCESSBOT 1 TOM EL. 829.00 2 FT X 1 FT ANCHOR BOTTOM EL. 829.00 CREST EL. 841.0 800 SLOPE DRAIN CLASS B STONE 800 800 TRENCH LINDEIMENT R SYSTEMIN 800 2 OUTLET PROTECTION 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 SUITABLE EARTHEN MATERIAL 2 FT X 1 FT ANCHOR SEDIMENT BASIN 2 FT X 1 FT ANCHOR ° Cross Section A-A' TRENCH COMPACTED TO 95/° OF STANDARD TRENCH LINER SYSTEM PRINCIPLE SPILLWAY PROCTOR MAX. DRY DENSITY 72 SQUARE CONCRETE RISER Cross Section C-C Scale: 1" = 50' WITHIN ±2% OPTIMUM MOISTURE W/TRASH RACK AND 67 FT OF 36" CMP Scale: 1" = 50' CUTOFF TRENCH DETAIL CONTENT N.T.S. N Z O O RISER BUOYANCY CALCULATION Cq Skimmer Design - Sediment Basin SB-2 Desired Skimmer Drawdown Time 3 days Demonstrate adequate stability by showing the downward force is a minimum of 1.25 w Z U) N 2 FT X 1 FT ANCHOR TRENCH times the upward force. o I Desired Skimmer Drawdown Rate 51,840 cf/day Z m Skimmer Size 6 in RISER DETAILS 14 ft. Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) o UJ C) o TRASH RACK Z w J Z Head on Orifice 0.417 ft EL. 841.00 SKIMMER 1'FREEBOARD 72" Square Concrete Riser o o = o 0 Calculated Orifice Diameter 3.404 in 0❑00❑00❑❑❑❑00❑00❑0 Height= 6' 0❑❑❑❑00❑❑❑❑00❑❑❑❑o EMERGENCY SPILLWAY DEPTH EMERGENCY SPILLWAY EL.838.5 Weight- 15,220 lb Actual Orifice Diameter (1/4 inch increments) 3.5 in NORMAL POOL EL. 835.00 0❑❑❑❑00❑❑❑❑00❑❑❑❑0 1'FREEBOARD MIN. g Actual Skimmer Drawdown Time 3.14 days - I I 2 2 Where: EXISTING GRADE Required Volume 1 57,3661 cf 50% CLEANOUT EL. 832.21 i i Riser Weight= 15,220 72"SQUARE i Weight of Concrete Base = (Length x Width x Depth)x Unit Weight of Concrete I \ \ \ 4'X 4'X 1' CONCRETE CLASS B STONE 1 i RISER WATER ENTRY UNIT 6.00' Weight of Concrete Base = (7 ft x 7 ft x 0.5 ft)x 150 Ib/ft3= 3,675 lb Z o 0 0 0 o I I J WITH TRASH SCREEN GENERAL NOTES: Z 1. PROPER DESIGN MUST BE COMPLETED TO MINIMIZE PIPING AROUND DISCHARGE I_______________I \ \ \\\\\ \\�\\\\\\\�\\\\ \ \ \ \ \ \ \ \ PIPE. ° 2. PROPER ORIFICE OPENING MUST BE SELECTED TO ENSURE POND DRAINS IN ° �\ \\� \\\\\� �\\ \\ \\ \ Structure Weight = 15,220 lb + 3,675 lb = 18,895 lb O ° d CORRECT AMOUNT OF TIME. MODIFICATIONS MAY BE REQUIRED IF FIELD BOTTOM OF POND EL. 829.00 d ° °° W 00000000o CONDITIONS WARRANT A CHANGE. ° ; ' d " < ° Buoyancy = Displacement Volume of Riser x 62.4 lb/ft3 Q I�r N 3. EMBANKMENT MUST BE COMPACTED TO DESIGN SPECIFICATIONS. ° , ° d° Z Q 4 EMERGENCY SPILLWAY MUST BE CORRECTLY SIZED AND EROSION PROTECTION STABILIZED OUTLET ORIFICE OPENING INSIDE THE 5. EROSION PROTECTION MUST BE INSTALLED ALONG THE EMBANKMENT AND AT THE SEDIMENT BASIN Buoyancy = 216 ft'x 62.4 Ib/ft3= 13,478.4 lb V Q ORIZONTAL TUBE WITH A EROSION END of THE PIPE. 6. INSPECT SYSTEM REGULARLY TO ENSURE IT IS FUNCTIONING IN A ANTI-FLOTATION BASE (IF APPLICABLE) CUT OFF TRENCH J W CONSTANT HYDRAULIC HEAD LINER SYSTEM O = Z J CORRECT MANNER. ELEVATION VIEW Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) Z 7. EIGHT SIZES OF SKIMMERS ARE AVAILABLE, REFER TO THE FLOW SHEET, CUT SHEET, AND INSTRUCTIONS ON WEB SITE FOR EACH SIZE. N.T.S. LL _ SCHEDULE 40 PVC PIPE 18,895 lb > 13,478.4 lb x 1.25 Q O � (BARREL OR ARM) ARTHEN EMBANKMENT 18,895 Ib > 16,848 Ib V Z Q A MAXIMUM HEIGHT OF FLOAT WHEN NO li MERGENCY SPILLWAY OTHER STORM WATER DISCHARGE 72" SQUARE CONCRETE RISER ANTI-FLOTATION BASE (IF APPLICABLE) LEXIBLE HOSE (MAJOOPENINGS EXIST R STORM EVENT) NOTES FLOAT " ; a s 1. Portland cement concrete (type II recommended)for the inlet base shall have a minimum compressive = INVERT OF LOWEST STORM PVC VENT ° °, ° ° 9 ° + ° ° ° strength of 4,000 psi. Z W a III- WATER DISCHARGE OPENING ° • d 11 2. Where corrugated aluminum Or aluminized steel pipe IS Used, all areas where the pipe is to be in contact with H�I�I�N II GRATE (MINOR STORM EVENT) PIPE ,d g p•p p'p J O TOP VIEW II "_.I-J111UIL1I LOAT concrete shall be painted with a black bituminous enamel paint. I.IJ FLEXIBLE HOSE MUST BE ° ° SECURELY FASTENED TO ° ° °d. 3. Riser to be constructed according to the Riser Details. Z LLI ' �- PVC VENT PIPE ; STORM WATER THE WATER QUALITY ° d \ \ 4. Sediment Basin Liner System to be installed per manufacture specifications utilizing batten strip at Z (n f/ I DISCHARGE DISCHARGE OPENING OPENING concrete riser and pipe boot for culvert. O0 O Z OUTLET PIPE _ ° 6'-0' 7'-0" 5. Cushion geotextile to be installed at locations where riprap is to be placed above the liner system - Q \ \\ (emergency spillway, slope pipe/culvert outlets, etc.). ID (n J 6. Skimmer Sizes and Orifice Diameters are calculated based on the NCDEQ Design Methodology and will be LU a a LEXIBLE HOSE L 1.4XDEPTH d, ° reviewed and approved by the Engineer once a Skimmer supplier/manufacturer has been chosen. a 0H = (- TO THE OVERFLOW ° MINIMUM LENGTH APPLIES ° BARREL CMP WATER ENTRY UNIT !I i II i SCHEDULE 40 PVC PIPE d d ° < ° ° ° , ° I hereby certify that this document was y,+� Opp L - : (BARREL OR ARM) a d ° ° ° ° ---------- _ __ r mpersonal p prepared y e or under my direct END VIEW SIDE VIEW MAINTAIN DEPRESSION TO I - _ = _ °A- Ad supervision and is correct to the best of my 4y`,Q�o _ _ = O •'� ssro MINIMIZE CHANCE OF knowledge and belief and that I am a duly _ SEAL =_ (NO SCALE) SKIMMER BECOMING STUCK licensed Professional Engineer under the = = 04ggg0 - DRAWN BY T. R. EVANS 10/10 PLAN VIEW = ': = �'= SHEET NUMBER ® J. W. FAIRCLOTH &SON INC. IaWS Of the Stare/of=arolina. : �FAIRCLOTH SKIMMER DISCHARGE SYSTEM WITH OUTLET WWW.FAIRCLOTHSKIMMER.COM N.T.S.TELEPHONE: (919) 732-1244 +fi` r '."`•'' ` `r STRUCTURE FAX: (919) 732-1266 (Signature) EMAIL: WARRENCFAIRCLOTHSKIMMER.COM Date: January 15,2024 rI��1+11111�5�• 02C0-G006 3 y DITCH NO. 7 Qj + SLOPE DRAIN � � � � \ � � Stage Storage Curve / I FLUME CREST OF POND SB-3 EL.804.00' I EMERGENCY SPILLWAY DETAIL Z = IC I 804.00 / 04.00 STRUCTURE LEVEL CONTROL SECTION (8 50%CLEAN OUT EL. 796.82 `� \ N.T.S. O J o 4 / 1 802.00 POROUS BAFFLES (TYP.) � 65.93 ft. 6 o M � 0 y t >k NAD-83 0 NC-SPCS 1 2 0.73 ft. 800.00 W / A TOP OF POND EL. 804.00 59.00 ft. PRINCIPAL SPILLWAY(799.27) BOTT of roNn 1.00ft. Freeboard SLOPE DRAIN EL.794. / Channel Design (Non-Erodible) Channel Slope: 0.1000 y A // �� B� Channel Type: Trapezoidal, Equal Side Slopes Manning's n of Channel: 0.0175 798.00 Dimensions: Left Side Slope 2.00:1 Discharge: 94.54 cfs 30 y / / y ACCESS ROAD Right Side Slope 2.00:1 Depth of Flow: 0.73 feet / 9 p CL U 11 NORMAL POOL EL. 799.27 � /' Base Dimension: 59.00 Velocity: 2.14 fps 796.00 AN OUT LEVEL(796.82) / Wetted Perimeter: 62.27 Channel Lining: Grouted Rock Rip Rap G Area of Wetted Cross Section: 44.23 Freeboard: 1.00 feet o 6p / 794.00 � /�� / SEDIMENT BASIN 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 Q ��° / �� LINER SYSTEMLIMI� �?�\ � EMERGENCY SPILLWAY DETAIL • SEDIMENT BASIN NO. 3 PRINCIPLE SPILLWAY Accumulative Storage Acre-Ft ' 14 SKIM 1 / PRINCIPLE SPILLWAY CHUTE SECTION Outflow g ( ) i 72" SQUARE CONCRETE RISER W/TRASH RACK N.T.S. AND 67 FT OF 36 IN. CMP Total Discharge: 97.95 cfs Storage volume computations > ono / 29.76 ft. Water Surface Elevation: 802.27 ft -6 - �� gf Tailwater Elevation: 0.00 ft SB-3 �' � � �� 1 �� 0 ��1 �01.00tft. Freeboard Detention Base Elevation: 0.00 ft m q OUTLET PROTECTION / 2 2 ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE b Outlet#1: Sediment Basin 3 Principle Spillway, Dr0 PI a (ft) (ft) (ft) (ac) AREA (ft) (ac-ft) STORAGE INTERVAL 25.00 ft. � p P P Riser Top Elev: 799.27 ft (ac) (ac-ft) (ft) Riser Length: 72.00 in Channel Design (Non-Erodible) Channel Slope: 50.0000 Riser Width: 72.00 in 794.00 N/A N/A 0.5715 Manning's n of Channel: 0.0175 795.00 N/A N/A 0.6046 0.6212 1.00 0.615s 1.1968 1.00 Orifice Coefficient: 3.33 0.6212 1.00 0.6150 1.1968 2.00 Channel Type: Trapezoidal, Equal Side Slopes 796.0o N/A N/A 0.6378 / / Weir Coefficient: 3.33 0.6518 0.82 0.5344 1.7312 2.82 / EMERGENCY SPILLWAY Dimensions: Left Side Slope 2.00:1 Discharge: 94.54 cfs 796.82 N/A N/A 0.6658 / Culvert Length: 67.00 ft 0.6549 0.18 0.1142 1.8454 3.00 LEVEL CONTROL SECTION EL. =802.27 Right Side Slope 2.00:1 Depth of Flow: 0.19 feet 797.0o N/A N/A o.6720 Culvert Diameter: 36.00 In 0.6913 1.00 0.6830 2.5284 4.00 Base Dimension: 25.00 Velocity: 19.61 fps 798.00 N/A N/A 0.7105 Z Z Z Z Culvert Invert In: 795.00 ft 0.7302 1.00 0.7228 3.2513 5.00 799.00 N/A N/A 0.7498 EMERGENCY SPILLWAY / Wetted Perimeter: 25.85 Channel Lining: Grouted Rock Rip Rap Culvert Invert Out: 794.00 ft 799.27 N/A N/A 0.7605 0.7552 0.27 0.2039 3.4552 5.27 0 0 0 0 / / t Area of Wetted Cross Section: 4.82 Freeboard: 1.00 feet Culvert Friction Coefficient: 0.02 800.00 N/A N/A 0.7896 0.8098 1.00 0.8023 4.8158 7.00 CHUTE SECTION i r / / ! Culvert Entrance Loss Coefficient: 0.90 ososs 1.00 oso23 4.8158 7.00 Qv ♦ \ `\ / l� 0.8507 1.00 0.8431 5.6589 8.00 0 0 0 0 V 801.00 N/A N/A 0.8301 FLU _- ��/ / 802.00 N/A N/A 0.8714 UJ UJ UJ L, 802.27 N/A N/A 0.8817 0.9096 11.73 11.5750 7.4706 0.00 a a a a / SLOPE DRAIN �� // �- �/ •�, s s s s 804.00 N/A N/A 0.9478 v1 N \ N O \ p N \ M u7 PLAN VIEW : SEDIMENT BASIN NO. 3 o N Z N SCALE: 1" = 50' CUTOFF TRENCH z N M EXISTING GROUND (ABUTMENTS) 850 EXISTING GROUND 850 850 EXISTING GROUND 850 Q25 HWD EL. 801.27 NORMAL POOL EL. 799.27 FILL MATERIAL 2 FT X 1 FT ANCHOR TRENCH o SEDIMENT BASIN 2' MAXIMUM IF NOT CUT TO BEDROCK Q25 HWD EL. 801.27 NORMAL POOL EL. 799.27 50% CLEAN OUT EL. 796.82 LINER SYSTEM _ - _ _ IL 2.7 50% CLEAN OUT EL. 796.82 SKIMMER� 14 ft. 8OO ?7 2 800 �I 14 ft. 14 ft. - - - - - 14 ft. 1 800 CREST 804.0 800 27 21 1 ? - - - - - - - - - - - BOTTOM EL. 794.0 BOTTOM EL. 794.0 1.5% 14 FT ACCESS 2 CLASS B STONE 2 FT X 1 FT ANCHOR TRENCH CREST EL. 804.0 SUITABLE EARTHEN MATERIAL 2 FT X 1 FT ANCHOR TRENCH SEDIMENT BASIN OUTLET PROTECTION 750 750 COMPACTED TO 95% OF STANDARD 750 LINER SYSTEM 750 PROCTOR MAX. DRY DENSITY 0+00 0+50 1+00 1+50 2+00 2+50 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 WITHIN ±2% OPTIMUM MOISTURE Cross Section B-B' CUTOFF TRENCH DETAIL CONTENT Cross Section A-A PRINCIPLE SPILLWAY 72" SQUARE CONCRETE RISER Scale: 1" = 50' N.T.S. Scale: 1" = 50' W/TRASH RACK AND 67 FT OF 36" CMP RISER BUOYANCY CALCULATION o � o CV O Ir \ = J Demonstrate adequate stability by showing the downward force is a minimum of 1.25 C) Y J Z \ U) times the upward force. w Q 00 Q �, Skimmer Design - Sediment Basin SB-3 2 FT X 1 FT ANCHOR TRENCH o m Desired Skimmer Drawdown Time 3 days RISER DETAILS 14 ft. Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) o Z to TRASH RACK w o C) o Desired Skimmer Drawdown Rate 20 109 cf/day EL. 804.00 Z z Y w w Z Skimmer Size 4 in SKIMMER 1'FREEBO RA D 72" Square Concrete Riser N <a w Q o w of 0❑❑❑❑00❑❑❑❑00❑❑❑❑0 Height =Approximately 6' o o o 0 Head on Orifice 0.333 ft 000❑ U0❑❑❑❑00❑❑❑❑0 EMERGENCY SPILLWAY DEPTH EMERGENCY SPILLWAY EL.802.27 Weight- 15,220 Ib Calculated Orifice Diameter 2.242 in NORMAL POOL EL. 799.27 00ED] D0❑❑❑❑00❑❑❑❑0 1'FREEBOARD MIN. Actual Orifice Diameter(1/4 inch increments) 3.25 in i i 2 2 Where: EXISTING GRADE I I 1 1 Actual Skimmer Drawdown Time 3.36 days I I Riser Weight= 15,220 Ib 50% CLEANOUT EL. 796.82 I I 72"SQUARE Weight of Concrete Base = (Length x Width x Depth) x Unit Weight of Concrete Required Volume 1 47,3041 cf II CONCRETE 4' X 4'X V CLASS B STONE 1 i RISER i Weight of Concrete Base = (7 ft x 7 ft x 0.5 ft)x 150 lb/ft' = 3,675 Ib Q 36 DIA BARREL CMP 5.27' \�\\�\ \\\��\\\� \� \ \ �\ \� �\ Structure Weight= 15,220 Ib + 3,675 Ib = 18,895 Ib Z Z J WATER ENTRY UNIT I...............I \ \ \ \ \ WITH TRASH SCREEN GENERAL NOTES: 1. PROPER DESIGN MUST BE COMPLETED TO MINIMIZE PIPING AROUND DISCHARGE d \� \� \\ \\ PIPE. ° 2. PROPER ORIFICE OPENING MUST BE SELECTED TO ENSURE POND DRAINS IN BOTTOM OF POND EL. 794.00 d d < ° ° ti ° °O • Buoyancy - Displacement Volume Of Riser x 62.4 Ib/ft3 C ^/ M CORRECT AMOUNT OF TIME. MODIFICATIONS MAY BE REQUIRED IF FIELD ° LLLU CONDITIONS WARRANT A CHANGE. ° ° ° d° ° d° a ° d ° 3. EMBANKMENT MUST BE COMPACTED TO DESIGN SPECIFICATIONS. 0 4 EMERGENCY SPILLWAY MUST BE CORRECTLY SIZED AND EROSION PROTECTION SEDIMENT BASIN STABILIZED OUTLET Buoyancy= 216 ft'x 62.4 lb/ft' = 13,478.4 Ib Z ORIFICE OPENING INSIDE THEINSTALLED. ANTI-FLOTATION BASE (IF APPLICABLE) CUT OFF TRENCH J V O W 5. EROSION PROTECTION MUST BE INSTALLED ALONG THE EMBANKMENT AND AT THE O NTAL TUBE WITH A LINER SYSTEM CONSTANT HYDRAULIC HEAD DISCHARGE END OF THE PIPE. Downward Force (structure weight) x (buoyancy)> 1.25 Upward F buo T Z J pwar Force Y) O 6. INSPECT SYSTEM REGULARLY TO ENSURE IT IS FUNCTIONING IN A CORRECT MANNER. ELEVATION VIEW H Z 7. EIGHT SIZES OF SKIMMERS ARE AVAILABLE, REFER TO THE FLOW SHEET, CUT 18,895 Ib > 13,478.4 Ib x 1.25 SHEET, AND INSTRUCTIONS ON WEB SITE FOR EACH SIZE. SCHEDULE 40 PVC PIPE N.T.S. 18,895 Ib > 16,848 Ib (BARREL OR ARM) ARTHEN EMBANKMENT 72 Z Q A MAXIMUM HEIGHT OF FLOAT WHEN NO " SQUARE CONCRETE RISER ANTI-FLOTATION BASE IF APPLICABLE MERGENCY SPILLWAY OTHER STORM WATER DISCHARGE ( ) � Q OPENINGS EXIST NOTES LL LEXIBLE HOSE (MAJOR STORM EVENT) < d r Z ° ° strength of 4,000 psi. Z LU FLOAT ° < ° d . ° 4 ° 1. Portland cement concrete (type II recommended)for the inlet base shall have a minimum compressive = Z e Q _ INVERT OF LOWEST STORM ° -III l GRATE WATER DISCHARGE OPENING PIPE VENT °d 2. Where corrugated aluminum or aluminized steel pipe is used, all areas where the pipe is to be in contact with H I1:H ll (MINOR STORM EVENT) concrete shall be painted with a black bituminous enamel paint. O FLEXIBLE HOSE MUST BE Q TOP VIEW II LOAT ° d 3. Riser to be constructed according to the Riser Details. V LU I _ . . _ .. _ . ° ° SECURELY FASTENED TO ° d W \ 4. Sediment Basin Liner System to be installed per manufacture specifications utilizing batten strip at Z Z PVC VENT PIPE I ; STORM WATER THE WATER QUALITY DISCHARGE DISCHARGE OPENING \ \\ concrete riser and pipe boot for culvert. O Z r - OPENING '-- • � 6'-0" 7'-0' 5. Cushion geotextile to be installed at locations where riprap is to be placed above the liner system OUTLET PIPE (emergency spillway, slope pipe/culvert outlets, etc.). 0 ~ J \ \�\ 6. Skimmer Sizes and Orifice Diameters are calculated based on the NCDEQ Design Methodology and will be LLI a LEXIBLE HOSE d° reviewed and approved by the Engineer once a Skimmer supplier/manufacturer has been chosen. - Q -' ° : H i L = 1.4 X DEPTH ° _ ° BARREL CMP a TO THE OVERFLOW d ° MINIMUM LENGTH APPLIES ° ° ° ° ° ° i1111Hiij WATER ENTRY UNIT ! ;i--- SCHEDULE 40 PVC PIPE ° - A . I herebycertify that this document was �� i�r ' I- - i - - - - - - - - - (BARREL OR ARM) A. ° °° ° °ad d e prepared by me or under my direct personal R ........ �r� - - - - - - - - - - - - -I ° '° supervision and is correct to the best of my Off;oF�srp ,./ END VIEW SIDE VIEW MAINTAIN DEPRESSION TO - = = - knowledge and belief and that I am a duly Q SEAL g�•:� MINIMIZE CHANCE OF (NO SCALE) SKIMMER BECOMING STUCK licensed Professional Engineer under the = = 048820 - DRAWN BY T. R. EVANS 10/10 = ': = �'= SHEET NUMBER laws of the Sta e f o h rolina. J. W. FAIRCLOTH & SON INC. ��•I'' 'Y(jj �,� '• � FAIRCLOTH SKIMMER® DISCHARGE SYSTEM WITH OUTLET WWW.FAIRCLOTHSKIMMER.COM �; j ' TR U C TU R E TELEPHONE:FAX: (919)1932711266244 STRUCTURE PLAN VIEW (Signature/ 1 EMAIL: WARREN®FAIRCLOTHSKIMMER.COM N.T.S. Date: January 15,2024 �' +iiii ■��' 02CO-0007 - ACCESS ROAD NORMAL POOL EL. 793.02 EMERGENCY SPILLWAY DETAIL Stage Storage Curve ' LEVEL CONTROL SECTION SEDIMENT BASIN NO. 4 N.T.S.yv 799.50 z Z z 57.90 ft. DITCH NO. 10 797.50 1-0 TOP O)STRUCTURE J \ C *s 117 1.00ft. Freeboard 10 S? 0.98 ft. T 4 \' 1 FL 798 2 795.50 EMERGENC SPILLWA (796.02) ` \ �0, 50.00 ft. \ SLOPE DRAIN I NAD-83 1 TOP OF POND NC-SPCS Uj 793.50 EL. 798.00 � � PR NCIPAL SPI LWAY(793.)2) � T 1 Channel Design (Non-Erodible) Wetted Perimeter: 54.36 Discharge: 129.84 cfs / ` 3 / Area of Wetted Cross Section: 50.67 Depth of Flow: 0.98 feet `♦ J# 0 Channel Type: Trapezoidal, Equal Side Slopes Velocity: 2.56 fps 791.50 \ T 4? >k Dimensions: Left Side Slope 2.00:1 Channel Slope: 0.1000 Right Side Slope 2.00:1 Manning's n of Channel: 0.0175 Channel Lining: Grouted Rock Rip Rap 50%CLEAN OUT L VEL(790.50 to 1 0 Base Dimension: 50.00 Freeboard: 1.00 feet 789.50 U 50%CLEAN OUT EL. 790.50 SEDIMENT BASIN NO. 4 PRINCIPLE SPILLWAY 787 0 1 EMERGENCY SPILLWAY DETAIL 50 N 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 14 SLOPE DRAIN f t CHUTE SECTION Outflow �; 'N 1 � POROUS BAFFLES (TYP.) N.T.S. Total Discharge: 130.75 cfs Freeboard \ �� ,,.• 1.00ft. Accumulative Storage (Acre-Ft)ft DELINEATED \ I 1Water Surface Elevation: 795.02 Q ft v � Tallwater Elevation: 0.00 WETLANDS 30.21 ft. Detention Base Elevation: 0.00 ft Storage volume computations .1 1 1 Outlet#1: Sediment Basin 4 Principle Spillway, Drop Pipe SB-4 ` j 2 2 Riser Top Elev: 793.02 ft I I _ 25•00 ft. Riser Length: 72.00 In ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE ' a> FLUME 1 �' 0.30 ft. Riser Width: 72.00 In (ft) (ft) (ft) (ac) AREA (ft) (ac-ft) STORAGE INTERVAL ' 7] 1 \ ® Orifice Coefficient: 0.50 (ac) (ac-ft) (ft) Weir Coefficient: 3.33 1 Channel Design (Non-Erodible) Channel Slope: 21.8000 Culvert Length: 105.00 ft 787.50 N/A N/A 0.6887 T 1 Mannin s n of Channel: 0.0175 789.50 N/A N/A 0.8048 0.8340 2.00 1.8350 1.3081 2.00 9' Culvert Diameter: 42.00 in 0.8340 1.00 0.8350 2.3081 3.00 Channel Type: Trapezoidal, Equal Side Slopes Culvert Invert In: 787.50 ft 790.50 N/A N/A 0.8633 \ \ _ 00 Dimensions: Left Side Slope 2.00:1 Discharge: 129.88 cfs 791.50 N/A N/A 0.9216 0.8670 1.52 1.4698 3.6483 4.52 � Culvert Invert Out: 785.34 ft 0.9670 1.52 1.4698 4.6481 5.52 T 1 % Right Side Slope 2.00:1 Depth of Flow: 0.30 feet 793.02 N/A N/A 1.0123 0.9813 0.48 0.4711 5.1192 6.00 EMERGENCY SPILLWAY Culvert Friction Coefficient: 0.02 I 1 Base Dimension: 25.00 Velocity: 16.78 fps 793.50 N/A N/A 1.0410 � LEVEL CONTROL SECTION EL. =796.02 Culvert Entrance Loss Coefficient: 0.90 1.1017 2.00 2.1813 7.3005 s.00 ,- 795.50 N/A N/A 1.1624 0 00 Wetted Perimeter: 26.35 Channel Linin Grouted Rock Ri Ra 1.17s9 0.52 0.6130 7.9136 s.52 Z Z Z Z j o� o T ` g p p 796.02 N/A N/A 1.1955 w w w w �� Area of Wetted Cross Section: 7.74 Freeboard: 1.00 feet 1.2260 1.48 1.8145 9.7281 10.00 2 o \,coo 00 1 797.50 N/A N/A 1.2896 2 cm) ooI 1 y-� , OUTLET PROTECTION 798.00 N/A N/A 1.3066 1.2981 0.50 0.6467 10.3748 10.50 0 0 0 0 1 1 w w w w BOTTOM OF PO D 1 \ I o T 1 EL.787.50 AI ,N w w w w w w w w EMERGENCY SPILLWAY 1 N T i ♦ I CHUTE SECTION N 1 N N \ N I A PRINCIPLE SPILLWAY 1 �� CUTOFF TRENCH o NZ N I ,r 72 SQUARE CONCRETE SEDIMENT BASIN LINER I � 1 RISER W/TRASH RACK SYSTEM LIMIT N M 1 11 \ ' EXISTING GROUND (ABUTMENTS) Z \ � AND 105 FT OF 42 IN. CMP 1 850 EXISTING GROUND 850 1 1111 ST-110 � 2' MAXIMUM IF Q25 HWD EL. 795.02 50% CLEAN OUT EL. 790.50 NORMAL POOL EL. 793.02 FILL MATERIAL gEOD ROCK O T \ / 800 14 ft. 14 ft. 800 1 - - - - - - - - - - - - - - - - - - - - - - - - - - - 2 FT X 1 FT ANCHOR\ T BOTTOM EL. 787.50 �1 TRENCH 2 FT X 1 FT ANCHOR 14 FT ACCESS 2 1 SUITABLE EARTHEN MATERIAL SEDIMENT BASIN TRENCH CREST EL. 798.00 COMPACTED TO 95% OF STANDARD T ACCESS ROAD I LINER SYSTEM PROCTOR MAX. DRY DENSITY 750 750 WITHIN ±2% OPTIMUM MOISTURE \ 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+50 6+00 6+50 CONTENT B Cross Section B-B' CUTOFF TRENCH DETAIL * Scale: 1" = 50' N.T.S. PLAN VIEW : SEDIMENT BASIN NO. 4 SCALE: 1" = 50' RISER BUOYANCY CALCULATION N Z 0) 850 EXISTING GROUND 850 Demonstrate adequate stability by showing the downward force is a Q25 HWD EL. 795.02 minimum of 1.25 times the upward force. rJ Y Q N N NORMAL POOL EL. 793.02 _j Z :2 -, U) 50% CLEAN OUT EL. 790.50 OUTLET Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) w Q Q o 2 FT X 1 FT ANCHOR TRENCH Z N 0 ? I I PROTECTION 14 ft. 72" Square Concrete Riser Z z o w w z 800 �I I� 14 ft. 14 ft. REST 798.0 800 2' TRASH RACK RISER DETAILS Height =Approximately 6' o <a w Q o w 2 FT X 1 FT ANCHOR � EL. 798.00 Weight- 15,220 Ib o o � o � � BOTTOM EL. 787.50 2.06% SKIMMER 1'FREEBOARD TRENCH 2 FT X 1 FT ANCHOR o❑❑❑❑ao❑❑❑❑oo❑❑❑❑a EMERGENCY SPILLWAY DEPTH EMERGENCY SPILLWAY EL.796.0 Where: SEDIMENT BASIN CLASS B STONE TRENCH NORMAL POOL EL. 793.02 o❑❑❑❑ao❑❑❑❑n11000a _ o❑❑❑❑ao❑❑❑❑oo❑❑❑❑a 1'FREEBOARD MIN. 750 LINER SYSTEM 750 I I 2 2 Riser Weight= 15,220 Ib 0+00 0+50 1+00 1+50 2+00 2+5 3+00 3+50 4+00 EXISTING GRADE i i 1 F 1 Weight of Concrete Base = (Length x Width x Depth) x Unit PRINCIPLE SPILLWAY 50% CLEANOUT EL. 790.50 I Weight of Concrete Cross Section A-A 72" SQUARE CONCRETE RISER I 72"SQUARE I �� \ \ �� W/TRASH RACK AND 105 FT OF 42" CMP 4'X 4'X 1' CLASS B STONE I \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\ ��\ Weight of Concrete Base = 7 ft x 7 ft x 0.5 ft x 150 lb/ft' - 3,675 Ib Scale: 1" = 50' I CONCRETE I \ \ \ \ \ \\\ g ( ) Z Z J o RISER I 42" DIA BARREL CMP WATER ENTRY UNIT �O 1 5.52 \ \\\\\ \\\\ \ \ \ Structure Weight= 15,220 Ib + 3,675 Ib = 18,895 Ib J a WITH TRASH SCREEN GENERAL NOTES: ° • d \ \ \\ \ �\ \ \\\ \\ \\ _ (n O 1. PROPER DESIGN MUST BE COMPLETED TO MINIMIZE PIPING AROUND DISCHARGE ° \\ \ \ \ \ ` Buoyancy= Displacement Volume Of Riser x 62.4 Ib/ft3 PIPE' BOTTOM OF POND EL. 787.50 d • ° ° ° °O LU Z a 0 2. PROPER ORIFICE OPENING MUST BE SELECTED TO ENSURE POND DRAINS IN d ° CORRECT AMOUNT OF TIME. MODIFICATIONS MAY BE REQUIRED IF FIELD CHANGE. • d a Buoyancy - 216 ft'x 62.4 lb/ft3 - 13,478.4 Ib 0 0 00 3. EMBANKMENT CONDITIONS VMUSTNBEACOMPACTED TO DESIGN SPECIFICATIONS. • ° ° ° ° d ° LU 4. EMERGENCY SPILLWAY MUST BE CORRECTLY SIZED AND EROSION PROTECTION STABILIZED OUTLET J V Z _j INSTALLED. SEDIMENT BASIN ANTI-FLOTATION BASE IF APPLICABLE CUT OFF TRENCH Downward Force structure wei ht > 1.25 x U ward Force buo anc Z J ORIFICE OPENING INSIDE THE 5. EROSION PROTECTION MUST BE INSTALLED ALONG THE EMBANKMENT AND AT THE LINER SYSTEM ELEVATION VIEW ( ) ( weight) p ( y y) Z ONST NTAL TUBE WITH A DISCHARGE END OF THE PIPE. LL U_ CONSTANT HYDRAULIC HEAD 6. INSPECT SYSTEM REGULARLY TO ENSURE IT IS FUNCTIONING IN A CORRECT 18,895 Ib > 13,478.4 Ib x 1.25 ,^ MANNER. N.T.S. Q V+ O 7. EIGHT SIZES OF SKIMMERS ARE AVAILABLE, REFER TO THE FLOW SHEET, CUT 18,895 Ib > 16,848 Ib V O SHEET, AND INSTRUCTIONS ON WEB SITE FOR EACH SIZE. Skimmer Design - Sediment Basin SB-4 NOTES Z SCHEDULE 40 PVC PIPE C m li (BARREL OR ARM) ARTHEN EMBANKMENT Desired Skimmer Drawdown Time 3 days C MAXIMUM HEIGHT OF FLOAT WHEN No y 72" SQUARE CONCRETE RISER ANTI-FLOTATION BASE (IF APPLICABLE) 1. Portland cement concrete (type II recommended)for the inlet base shall have a minimum compressive > Q MERGENCY SPILLWAY OTHER STORM WATER DISCHARGE Desired Skimmer Drawdown Rate 32,832 cf/da stren th of 4,000 sI Z Z OPENINGS EXIST y g p LEXIBLE HOSE (MAJOR STORM EVENT) Skimmer Size 5 In ° : a • ° ' 2. Where corrugated aluminum or aluminized steel pipe is used, all areas where the pipe is to be in contact with Z LU Q FLOAT Head on Orifice 0.333 ft • °° • 9 • 4 ° e . ° concrete shall be painted with a black bituminous enamel paint. INVERT OF LOWEST STORM ° .° ° • ; 3. Riser to be constructed according to the Riser Details. J 0 PVC VENT Calculated Orifice Diameter 2.865 in d -I11=11 GRATE WATER DISCHARGE OPENING PIPE • 4. Sediment Basin Liner System to be installed per manufacture specifications utilizing batten strip at r ' LU HMI}I�H (MINOR STORM EVENT) v TOP VIEW -II II LOAT Actual Orifice Diameter(1/4 inch increments) 3.5 in ° • • concrete riser and pipe boot for culvert. Z W ; FLEXIBLE HOSE MUST BE •°• 5. Cushion geotextile to be installed at locations where riprap is to be placed above the liner system Z (n SECURELY FASTENED TO Actual Skimmer Drawdown Time 3.30 days • d VC VENT PIPE I STORM WATER THE WATER QUALITY ° \\ \\\ (emergency spillway, slope pipe/culvert outlets, etc.). O Z DISCHARGE OPENING DISCHARGE OPENING • 6. Skimmer Sizes and Orifice Diameters are calculated based on the NCDEQ Design Methodology and will be Q - Required Volume 53,946 cf 6'-0" 7'-0' reviewed and approved by the Engineer once a Skimmer supplier/manufacturer has been chosen. W U) a OUTLET PIPE--, r_. _ • t^ • \ \\\ V - H LEXIBLE HOSE L = 1.4 X DEPTH ° - T ° d • • BARREL CMP `c011fill„,� O THE OVERFLOW '•, ; - MINIMUM LENGTH APPLIES • • • ° I hereby certify that this document was d d < • • ° ° prepared by me or under my direct personal ,�` '�C`. ..• O 'r, WATER ENTRY UNIT '• ,; ;, SCHEDULE 40 PVC PIPE • d • d ° ° F5510 . r d a supervision and is correct to the best of my C o .��{: 11 - (BARREL OR ARM) • ° • •° knowledge and belief and that I am a duly -_ -_ __________ - _ - _ - _ -_ -_ -III SEAL END VIEW SIDE VIEW MAINTAIN DEPRESSION TO - _ = - licensed Professional Engineer under the :: 048820 SHEET NUMBER MINIMIZE CHANCE OF PLAN VIEW laws of the St a e Of o h arolina. (NO SCALE) �'.,� q••r �.: SKIMMER BECOMING STUCK DRAWN BY T. R. EVANS 10/10 N.T.S. %�' ��."'•" FAIRCLOTH SKIMMER° DISCHARGE SYSTEM WITH OUTLET W. FARCLOTH I SON INC. �SlQ/12fUlB� TELEPHONE:(9 9)1732-112 4 Date: January 15,2024 ` ��+�Ili{tl�`' 02CO-GO08 STRUCTURE FAX: (919) 732-1266 EMAIL: WARRENOFAIRCLOTHSKIMMER.COM i �le �/ EMERGENCY SPILLWAY DETAIL Stage Storage Curve LEVEL CONTROL SECTION SEDIMENT BASIN NO. 5 8 4� N.T.S. \ FLUME \ NORMAL POOL E-,. 851.48 Z _ 41.09 ft. F- DITCH NO. 16 J SLOPE DRAIN / 0.52 ft. J_ 855.00 Ak OP le ,+ 1 1.00ft. Freeboard ( 55 00)STRUCTURE PRINCIPLE SPILLWAY 1 72" SQUARE CONCRETE RISER W/TRASH RACK �� 00 �° B T *4 2 35.00 ft. 2 85a.00 AND 109 FT OF 30 IN. CMP5� , EM=RGENCYj SPILLWAY(853.48) Q �60"""` / ��. ♦ �1 * NAD-83 853.00 NC-S�C'S 40 � $6o LU DITCH NO. 16 l . + 30 ;-�- Channel Design (Non-Erodible) e SKIMMER/ ACCESS ROAD Channel Type: Trapezoidal, Equal Side Slopes o 852.00 To vt OF POND j�� Dimensions: Left Side Slope 2.00:1 � - EL.848.00 f / ,/ Right Side Slope 2.00:1 w PRINCI L SPILL AY(851.4 ) SEDIMENT BASIN Base Dimension: 35.00 851.00 LINER SYSTEM LIMIT ♦ , o Wetted Perimeter: 37.34` U SLOPE DRAIN / / Area of Wetted Cross Section: 18.89 850.00 '50%CLEAN OUT EL. 849.87-� /I / / . / ♦ -� /I / , �� Channel Slope: 0.1000 LEAN UT LEVEL 849.87 ie ♦ ./ POROUS BAFFLES (TYP.)• ,/ Manning's n of Channel: 0.0175 849.00 N DITCH NO. 19 B � �! / �� Discharge: 32.19 cfs � o N EMERGENCY SPILLWAY Depth of Flow: 0.52 feet 1 LEVEL CONTROL SECTION EL.=853.48 Velocity: 1.70 fps 848.00 X EMERGENCY SPILLWAY 0.00 0.40 0.80 1.20 1.60 2.00 � Q 1 1 Channel Lining: Grouted Rock Rip Rap CHUTE SECTION Freeboard: 1.00 feet X 1 Accumulative Storage (Acre-Ft) / �1/ 1 ♦%+/� Q 1 'oe �' EMERGENCY SPILLWAY DETAIL SEDIMENT BASIN NO. 5 PRINCIPLE SPILLWAY Storage volume computations XLD A'.*;+, _ CHUTE SECTION Outflow SEDIMENT BASIN NO.5 ' m �� OUTLET PROTECTION N.T.S. Total Discharge: 70.63 cfs ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE + 846 Water er Elevation: tion:Elevation: 857.48 ft O O O ( ) (ft) (ac-ft) STORAGE INTERVAL ft ft ft ac AREA 7� ACCESS ROAD / ST-109 ;��i Detention Elevation: 0.00 ft (ac) (ac-ft) (ft) -� 19.54 ft. Detention Base Elevation: 0.00 ft 848.00 N/A N/A 0.2049 O Agft. Freeboard Outlet#1: Sediment Basin 5 Principle Spillway, Drop Pipe 849.00 N/A N/A 0.2256 0.2153 1.00 0.2113 0.2113 1.00 PLAN VIEW : SEDIMENT BASIN NO. 5 2 2 Riser Top Elev: 851.48 ft 849.87 N/A N/A 0.2436 0.2346 0.87 0.2049 0.4162 1.87 15.00 ft. Riser Length: 72.00 In 0.2359 0.13 0.0271 0.4433 2.00 SCALE: 1" - 50' 850.00 N/A N/A 0.2462 v1 v1 v1 v1 Riser Width: 72.00 in 0.2569 1.00 0.2528 0.6961 3.00 Z Z Z Z 851.00 N/A N/A 0.2676 w w w w Orifice Coefficient: 0.50 0.2728 0.48 0.1309 0.8271 3.48 851.48 N/A N/A 0.2780 Weir Coefficient: 3.33 852.00 N/A N/A 0.2893 0.2784 0.52 0.1433 0.9704 4.00 0 0 0 0 Channel Design (Non-Erodible) Channel Slope: 50.0000 Culvert Length: 109.00 ft 853.00 N/A N/A 0.3118 0.3006 1.00 0.2962 1.2666 5.00 Manning's In of Channel: 0.0175 Culvert Diameter: 30.00 In 0.3173 0.48 0.1523 1.4189 5.48 0 0 0 0 853.48 N/A N/A 0.3228 Channel Type: Trapezoidal, Equal Side Slopes Culvert Invert In: 849.00 ft 854.00 N/A N/A 0.3347 0.3233 0.52 0.1665 1.5854 6.00 Ile Qf Qf Qf Dimensions: Left Side Slope 2.00:1 Discharge: 32.19 cfs a a a a 0.3442 1.00 0.3423 1.9277 7.00 0 Culvert Invert Out: 848.00 ft 855.00 N/A N/A 0.3537 • o 0 0 0 Right Side Slope 2.00:1 Depth of Flow: 0.14 feet N w w w w Q25 HWD EL. 852.48 Base Dimension: 15.00 Velocity: 15.59 fps Culvert Friction Coefficient: 0.02 0 s s s s SKIMMER y p Culvert Entrance Loss Coefficient: 0.90 900 PRINCIPLE SPILLWAY 900 Wetted Perimeter: 15.60 Channel Lining: Grouted Rock Rip Rap N 72" SQUARE CONCRETE RISER Area of Wetted Cross Section: 2.06 Freeboard: 1.00 feet o N ILO M 50% CLEAN OUT EL. 849.87 W/TRASH RACK AND 109 FT OF 30" CMP o N N OUTLET PROTECTION CUTOFF TRENCH z6 N M 2 FT X 1 FT � � 14 ft. 14 ft. 900 900 ANCHOR 850 2 --?, CREST 855.0 850 EXISTING GROUND (ABUTMENTS) CBOT OM E . 848.0 0.92% Q25 HWD EL. 852.48 TRENCH 50% CLEAN OUT EL. 849.87 NORMAL POOL EL. 851.48 EXISTING GROUND 2 FT X 1 FT ANCHOR FILL MATERIAL TRENCH I I 2' MAXIMUM IF NOT CUT TO BEDROCK NORMAL POOL EL. 851.48 SEDIMENT BASIN 14 ft. �I 14 ft. 800 CLASS B STONE LINER SYSTEM 800 850 Z1 _ _ _ _- -_ 850 0+00 0+50 1+00 1+50 2+00 2+50 3+00 BOTTOM EL. 848.0 2 1 L EXISTING GROUND 14 FT ACCESS 1 Cross Section A-A CREST EL. 855.00 Scale: 1" = 50' 2' 800 800 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 SUITABLE EARTHEN MATERIAL COMPACTED TO 95% OF STANDARD 2 FT X 1 FT ANCHOR PROCTOR MAX. DRY DENSITY 2 FT X 1 FT ANCHOR Cross Section B-B' TRENCH WITHIN ±2% OPTIMUM MOISTURE TRENCH Scale: 1" = 50' CUTOFF TRENCH DETAIL CONTENT SEDIMENT BASIN N.T.S. LINER SYSTEM Skimmer Design - Sediment Basin SB-5 N 0 Desired Skimmer Drawdown Time 3 days RISER BUOYANCY CALCULATION Desired Skimmer Drawdown Rate 6,234 cf/day 2 FT X 1 FT ANCHOR TRENCH Demonstrate adequate stability by showing the downward force is a minimum of 1.25 ``' Q 00 Q "' Skimmer Size 2.5 in RISER DETAILS 14 ft. times the upward force. o m Head on Orifice 0.208 ft TRASH RACK EL. 855.00 Downward Force structure weight) > 1.25 x Upward Force (buoyancy) z � w J w z Calculated Orifice Diameter 1.404 in SKIMMER ( 9 ) p ( Y Y) 7) 1'FREEBOARD a❑❑❑❑oa❑❑❑❑aa❑❑❑❑o EMERGENCY SPILLWAY DEPTH MERGENCY SPILLWAY EL.853.48 72" Square Concrete Riser 10 10 1010 1U) a_ I L� Actual Orifice Diameter (1/4 inch increments) 2 in 000000000 00000000 NORMAL POOL EL. 851.48 a❑❑❑❑oa❑❑❑❑aa❑❑❑❑o 1'FREEBOARD MIN. Height =Approximately 4 Actual Skimmer Drawdown Time 3.17 days = I I 2 2 Weight= 11,320 Ib EXISTING GRADE i i 1 F 1 Where: I I Required Volume 13,374 c CONCRETE CLEANOUT EL. 849.87 RISER 3.48' i �\ � \ \ \ \ \\ \\\ \\ \\ \\ Riser Weight= 11,320 Ib 4'X 4'X 1' CLASS B STONE I 30" DIA BARREL CMP Weight of Concrete Base = (Length x Width x Depth) x Unit Weight of Concrete 1' ' • a • I \ \\ \\ \ \\ I G WATER ENTRY UNIT I---- - --------I \ \\ \\ \\ \\ \\\ \ \\\\\\\ \ Z WITH TRASH SCREEN GENERAL NOTES: \ \\ \ \\ \\� ��\�\\\� \�\ �\ \\ \ Weight of Concrete Base = (7 ft x 7 ft x 0.5 ft)x 150 Ib/ft3 = 3,675 Ib Z Z J 1. PROPER DESIGN MUST BE COMPLETED TO MINIMIZE PIPING AROUND DISCHARGEPIPE. / • • • G 2. PROPER ORIFICE OPENING MUST BE SELECTED TO ENSURE POND DRAINS IN BOTTOM OF POND EL. 848.00 e Q • •° °• Structure Weight= 11,320 Ib + 3,675 Ib = 14,995 Ib O CORRECT AMOUNT OF TIME. MODIFICATIONS MAY BE REQUIRED IF FIELD •0 0000000o ° • • d • d• • Q CONDITIONS WARRANT A CHANGE. " a • a 3. EMBANKMENT MUST BE COMPACTED TO DESIGN SPECIFICATIONS. STABILIZED OUTLET 3 4. EMERGENCY SPILLWAY MUST BE CORRECTLY SIZED AND EROSION PROTECTION Buoyancy = Displacement Volume of Riser x 62.4 Ib/ft SEDIMENT BASIN CUT OFF TRENCH Z a ID INSTALLED. ANTI-FLOTATION BASE IF APPLICABLE ORIFICE OPENING INSIDE THE ( ) ORIZONTAL TUBE WITH A 5. EROSION PROTECTION MUST BE INSTALLED ALONG THE EMBANKMENT AND AT THE LINER SYSTEM ELEVATION VIEW y y_ 3 3 - J Z W CONSTANT HYDRAULIC HEAD DISCHARGE END OF THE PIPE. Buoyancy- 144 ft x 62.4 Ib/ft - 8,985.E Ib T 6. INSPECT SYSTEM REGULARLY TO ENSURE IT IS FUNCTIONING IN A CORRECT ANTI-FLOTATION RISER FILL N.T.S. O = MANNER. /�/ 7. EIGHT SIZES OF SKIMMERS ARE AVAILABLE, REFER TO THE FLOW SHEET, CUT (IF APPLICABLE) Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) li Z LL SHEET, AND INSTRUCTIONS ON WEB SITE FOR EACH SIZE. O SCHEDULE 40 PVC PIPE 14,995 Ib > 8,985.6 Ib x 1.25 0 Cn (BARREL OR ARM) ARTHEN EMBANKMENT U MAXIMUM HEIGHT OF FLOAT WHEN No 72" SQUARE CONCRETE RISER ANTI FLOTATION BASE (IF APPLICABLE) 14, 995 Ib > 11,232 Ib Z m a MERGENCY SPILLWAY OTHER STORM WATER DISCHARGE OPENINGS EXIST LEXIBLE HOSE (MAJOR STORM EVENT) ° a ' NOTES • i FLOAT • ° • • • 9 • .1 • B ° • � 1. Portland cement concrete (type II recommended)for the inlet base shall have a minimum compressive L=L Z Z Z Z LU INVERT OF LOWEST STORM PVC VENT • °a strength of 4,000 psi. r =1I- GRATE WATER DISCHARGE OPENING HEEI HI H 11 PIPE •(MINOR STORM EVENT) • 2. Where corrugated aluminum or aluminized steel pipe is used, all areas where the pipe is to be in contact with J 0 �_ TOP VIEW II LOAT ° a concrete shall be painted with a black bituminous enamel paint. U 0 W FLEXIBLE HOSE MUST BE SECURELY FASTENED TO • \ \ 3. Riser to be constructed according to the Riser Details. W VC VENT PIPE STORM WATER ; THE WATER QUALITY \ Z I_ 1 4. Sediment Basin Liner System to be installed per manufacture specifications utilizing batten strip at O Z V, i DISCHARGE � DISCHARGE OPENING a OPENING • 6'-0" 7'-0" concrete riser and pipe boot for culvert. 0 O Z OUTLET PIPE _ �_. - 5. Cushion geotextile to be installed at locations where riprap is to be placed above the liner system Q _ - • \� \ \\\ (emergency spillway, slope pipe/culvert outlets, etc.). a (n J �___;___ 6. Skimmer Sizes and Orifice Diameters are calculated based on the NCDEQ Design Methodology and will be W a a - LEXIBLE HOSE • • H L = 1.4 X DEPTH BARREL CMP reviewed and approved by the Engineer once a Skimmer supplier/manufacturer has been chosen. a �- TO THE OVERFLOW a MINIMUM LENGTH APPLIES • i; L ° E WATER ENTRY UNIT ( ' d • t • • ° • ° 1111if ' SBARREL ORO ARM PVC PIPE • . • ` a ° 1 hereby certify that this document was t ,� ��++pp i • A. ,° prepared by me or under my direct personal ��`' ' .... supervision and is correct to the best of my yO ;•oF�srp ,./ END VIEW SIDE VIEW MAINTAIN DEPRESSION TO - - - C ,Q� (NO SCALE) MINIMIZE CHANCE OF PLAN VIEW knowledge and belief and that I am a duly _ SEAL SKIMMER BECOMING STUCK DRAWN BY T. R. EVANS 10/10 licensed Professional Engineer under the 048820 N.T.S. = ': = = SHEET NUMBER laws of the St a e f o h Carolina. 4�: FAIRCLOTH SKIMMER° DISCHARGE SYSTEM WITH OUTLET J. W. FARCLOTH I SON INC. r� Y� , �,. WWW.FAIRCLOTHSKIMMER.COM � � TELEPHONE: (919) 732-1244 STRUCTURE EMAIL: WARRENOFAIRCLOTHSKIMMER.COM (Signature) ff FAX: (919) 732-1266 Date: January 15,2024 ''�r+ii�r ■��' 02CO-H005 p gp0 9p 4- \S5� � _8J�_ - _ EMERGENCY SPILLWAY DETAIL /� Stage Storage Curve DITC LEVEL CONTROL SECTION H NO. 19 N.T.S. SEDIMENT BASIN NO. 6 Z = �$p s H_ / ft. 10 J � A le � B� - �85�_ / ft. 852.00 Ah FLUME 0.59�6p I / / 1 (8op 2 00)STRUCTURE SLOPE 2 2 � ,��-0- 1.00ft. Freeboard) DRAIN � ��_ 41.00 ft. 851.00 S EME GENCY PILLWAY(850.41) i i `♦ \ LU ACCESS ROAD / Channel Design (Non-Erodible) Channel Slope: 0.1000 _j 850.00 $ Manning's n of Channel: 0.0175 g Ile / Channel Type: Trapezoidal, Equal Side Slopes o DITCH NO. C / / _ 849.00 � BOTTOM OF POND � I � Dimensions. Left Side Slope 2.00.1 Discharge. 45.75 cfs �, ;y EL.845.00 �� SEDIMENT BASIN Ae Right Side Slope 2.00:1 Depth of Flow: 0.59 feet j SKIMMER ` LINER SYSTEM LlM T / Base Dimension: 41.00 Velocity: 1.84 fps uj ( ) . T PRINCI AL SPILL AY 848. 1 u Y 848.00 Cp 50%CLEAN OUT EL. 846.86 / Wetted Perimeter: 43.63 Channel Lining: Grouted Rock Rip Rap U ' � <ZXZ rC Area of Wetted Cross Section: 24.82 Freeboard: 1.00 feetACCESS ROAD i ^ 27 NORMAL POOL EL. 848. te 847.00 «««< f CLEAN OUT LEVEL (846.86) -* G DITCH NO. 20 PRINCIPLE SPILLWAY N i ♦ �'�� 72" SQUARE CONCRETE RISER W/TRASH RACK 846.00 `q + AND 53 FT OF 30 IN. CMP EMERGENCY SPILLWAY DETAIL B -� '� CHUTE SECTION 845.00 EMER • Q POROUS BAFFLES (TYP.) I OUTLET PROTECTION♦ � ♦ SEDIMENT BASIN NO. 6 PRINCIPLE SPILLWAY 0.00 a6o 1.20 1.80 2.40 3.00 �� GENCY SPILLWAY ��♦. ♦♦+ CHUTE SECTION V ♦ ♦ ♦ ♦ Outflow Accumulative Storage (Acre-Ft) � Q A ♦ ♦ ♦ ♦♦ Total Discharge: 59.55 cfs > Storage volume computations �n / \ ♦♦♦ \ ♦♦♦♦�♦ 19.67 ft. Water Surface Elevation: 849.51 ft D I ; ♦ ♦ ♦�♦ 0.17 fft Tailwater Elevation: 0.00 ft °' ♦ ♦ + ♦ 1 1 1.00ft. Freeboard EMERGENCY SPILLWAY +♦♦♦ ♦♦ +♦♦♦ 2 2 T Detention Base Elevation: 0.00 ft SEDIMENT BASIN NO.6 ' 00 LEVEL CONTROL SECTION EL. =850.41 ♦♦ ♦ 15.00 ft. T / / -�. ♦♦ ♦+;♦♦ / Outlet#1: Sediment Basin 6 Principle Spillway, Drop Pipe ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE k / Riser Top Elev: 848.51 ft (ft) (ft) (ft) (ac) AREA (ft) (ac-ft) STORAGE INTERVAL / X Riser Length: 72.00 in (aG) (aG-ft) (ft)♦♦� ♦♦♦�♦ " X / ♦ '� ♦ / Channel Design (Non-Erodible) Channel Slope: 50.0000 Riser Width: 72.00 in Manning's In of Channel: 0.0175 Orifice Coefficient: 0.50 845.00 N/A N/A 0.3168 PLAN VIEW : SEDIMENT BASIN NO. 6 Channel Type: Trapezoidal, Equal Side Slopes 0.3293 1.00 0.3246 0.3246 1.00 Dimensions: Left Side Slope 2.00:1 Discharge: 45.76 cfs Weir Coefficient: 3.33 846.00 N/A N/A 0.3418 SCALE: 1" = 50' Right Side Slope 2.00:1 Depth of Flow: 0.17 feet Culvert Length: 53.00 ft 846.86 N/A N/A 0.3634 0.352E 0.8E 0.304E 0.6292 1.8E F Base Dimension: 15.00 Velocity: 17.88 fps Culvert Diameter: 30.00 In 847.00 N/A N/A 0.3668 0.3543 0.14 0.0450 0.6742 2.00 W Uj Uj Uj Culvert Invert In: 845.00 ft 848.00 N/A N/A 0.3922 0.3795 1.00 0.3747 1.0489 3.00 0 0 0 0 Wetted Perimeter: 15.75 Channel Lining: Grouted Rock Rip Rap 848.51 N/A N/A 0.4055 0.3989 0.51 0.2034 1.2523 3.51 p P Culvert Invert Out: 844.00 ft 0.4053 0.49 0.1969 1.4492 4.00 Area of Wetted Cross Section: 2.56 Freeboard: 1.00 feet Culvert Friction Coefficient: 0.02 849.00 N/A N/A 0.4183 Culvert Entrance Loss Coefficient: 0.90 850.00 N/A N/A 0.4450 0.4317 1.00 0.4266 1.8759 5.00 0 0 0 0 850.41 N/A N/A 0.4562 0.450E 0.41 0.1847 2.060E 5.41 � a a a Ile Q25 HWD EL. 849.41 0.458E 0.59 0.2687 2.3293 6.00 g 851.00 N/A N/A 0.4722 W W W W N 900 SKIMMER 900 0.4834 1.00 0.4812 2.8105 7.00 5 5 5 5 852.00 N/A N/A 0.4947 0w w w w UJ U 50% CLEAN OUT EL. 846.86 PRINCIPLE SPILLWAY eq N \ M u7 NORMAL POOL EL. 848.51 72" SQUARE CONCRETE RISER o N o W/TRASH RACK AND 53 FT OF o N N 30" CMP Q25 HWD EL. 849.41 14 ft. 14 ft. EXISTING GROUND 900 NORMAL POOL EL. 848.51 900 CUTOFF TRENCH z° N M 850 CREST 852.0 850 2 FT X 1 FT ANCHOR BOTTOM EL. 45.0 1 I)% o EXISTING GROUND ABUTMENTS 50/o CLEAN OUT EL. 846.8E (ABUTMENTS) TRENCH OUTLET PROTECTION EXISTING GROUND CLASS B STONE 850 14 ft. 14 ft. 850 FILL MATERIAL 2' MAXIMUM IF NOT CUT TO BEDROCK 800 800 0+00 0+50 1+00 1+50 2+00 2+50 3+00 2 FT X 1 FT ANCHOR 27 BOTTOM EL. 845.0 2 - - - - - TRENCH 14 FT ACCESS 1 L SEDIMENT BASIN Cross Section A-A CREST EL. 852.00 1 LINER SYSTEM Scale: 1" = 50' SEDIMENT BASIN 800 LINER SYSTEM 800 2' 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 SUITABLE EARTHEN MATERIAL Cross Section B-B COMPACTED TO 95% OF STANDARD PROCTOR MAX. DRY DENSITY Scale: 1" = 50' WITHIN ±2% OPTIMUM MOISTURE CUTOFF TRENCH DETAIL CONTENT N.T.S. N Z O o 0 O Skimmer Design - Sediment Basin SB-6 RISER BUOYANCY CALCULATION I-_ Desired Skimmer Drawdown Time 3 days Demonstrate adequate stability by showing the downward force is a minimum of 1.25 _j Z : U) Q Q Desired Skimmer Drawdown Rate 9,774 cf/day times the upward force. w :2 ao (0 o m Skimmer Size 3 in 2 FT X 1 FT ANCHOR TRENCH Z V) Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) o TRASH RACK RISER DETAILS 14 ft. v� a w H Q O w Head on Orifice 0.25 ft Z y w J w Z Calculated Orifice Diameter 1.680 in EL. 852.00 72 Square Concrete Riser w of = Q C) of � Actual Orifice Diameter(1/4 inch increments) 2.5 in SKIMMER + V FREEBOARD Height=Approximately 4' " `� L` p❑❑❑❑pp❑❑❑❑pp❑❑❑❑p } - Weight= 11,320 lb Actual Skimmer Drawdown Time 3.23 days 0❑❑❑❑00❑❑❑❑�0❑❑❑❑0 + EMERGENCY SPILLWAY DEPTH EMERGENCY SPILLWAY EL.850.41 NORMAL POOL EL. 848.51 ❑❑❑❑00❑❑❑❑��❑❑❑❑0 V FREEBOARD MIN. Where: 2 2 Required Volume 1 23,2921 cf EXISTING GRADE I I 1 1 Riser Weight= 11,320 lb CONCRETE I 50% CLEANOUT EL. 846.86 RISER i \ Weight of Concrete Base = (Length x Width x Depth)x Unit Weight of Concrete WATER ENTRY UNIT 4' X 4'X VCLASS B STONE i \\ \\\ \ \ \\ \\ \\\ \ \ Weight of Concrete Base = (7 ft x 7 ft x 0.5 ft)x 150 Ib/ft3= 3,675 lb V Z J WITH TRASH SCREEN GENERAL NOTES: 1, '_____° a °________ I 30" DIA BARREL CMP \ \ Z 1. PROPER DESIGN MUST BE COMPLETED TO MINIMIZE PIPING AROUND DISCHARGE PIPE. I--e_ _� \ \\�\\�\\ \\�\ Structure Weight = 11,320 lb + 3,675 lb = 14,995 lb J Q 2. PROPER ORIFICE OPENING MUST BE SELECTED TO ENSURE POND DRAINS INCONDITIONS CHANGE. ° e CORRECT AMOUNT OF TIME. MODIFICATIONS MAY BE REQUIRED IF FIELD 000000000 3. EMBAN MENTVARR MUSTNBEACOMPACTED TO DESIGN SPECIFICATIONS. BOTTOM OF POND EL. 845.00 a °a °° ° °' Buoyancy = Displacement Volume of Riser x 62.4 lb/ft' Q li LU4. EMERGENCY SPILLWAY MUST BE CORRECTLY SIZED AND EROSION PROTECTION °° ° ° a ° < Z ° ORIFICE OPENING INSIDE THE INSTALLED. . 4 d°5. EROSION PROTECTION MUST BE INSTALLED ALONG THE EMBANKMENT AND AT THE ° ° e Buoyancy = 144 ft'x 62.4 lb/ft' = 8,985.E lb U O ORIZONTAL TUBE WITH A . STABILIZED OUTLET DISCHARGE END OF THE PIPE � LUCONSTANT HYDRAULIC HEAD SEDIMENT BASIN ANTI-FLOTATION BASE (IF APPLICABLE) Q = 6. INSPECT SYSTEM REGULARLY TO ENSURE IT IS FUNCTIONING IN A CORRECT CUT OFF TRENCH MANNER. LINER SYSTEM Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) Z 7. EIGHT SIZES OF SKIMMERS ARE AVAILABLE, REFER TO THE FLOW SHEET, CUT SCHEDULE 40 PVC PIPE SHEET, AND INSTRUCTIONS ON WEB SITE FOR EACH SIZE. ANTI-FLOTATION RISER FILL ELEVATION VIEW Fn O MAXIMUM HEIGHT OF FLOAT WHEN NO LL (BARREL OR ARM) ARTHEN EMBANKMENT (IF APPLICABLE) N.T.S. 14,995 lb > 8,985.E lb x 1.25 14,995 lb > 11,232 Ib V Z Q W A MERGENCY SPILLWAY OTHER STORM WATER DISCHARGE ii OPENINGS EXIST NOTES LEXIBLE HOSE (MAJOR STORM EVENT) 72" SQUARE CONCRETE RISER ANTI-FLOTATION BASE (IF APPLICABLE) 0 FLOAT 1. Portland cement concrete (type II recommended)for the inlet base shall have a minimum compressive = Z QZ INVERT OF LOWEST STORM PVC VENT ° ° ° ° d ° 4 • strength of 4,000 psi. Z W =1II-I WATER DISCHARGE OPENING " H�I±I-�N GRATE PIPE e . 2. Where corrugated aluminum or aluminized steel pipe is used, all areas where the pipe is to be in contact with (MINOR STORM EVENT) A ° ; concrete shall be painted with a black bituminous enamel paint. J TOP VIEW - FLEXIBLE HOSE MUST BE LOAT ° p p Q LU 1 - - 3. Riser to be constructed according to the Riser Details. V SECURELY FASTENED TO A \ �VC VENT PIPE l STORM WATER THE WATER QUALITY ° ° n 4. Sediment Basin Liner System to be installed per manufacture specifications utilizing batten strip at Z Z W LU / DISCHARGE DISCHARGE OPENING ° - OPENING a �\ \ \ concrete riser and pipe boot for culvert. O Z OUTLET PIPE \ 5. Cushion geotextile to be installed at locations where riprap is to be placed above the liner system 2 Q _ - ° 6'-0" T-0" (emergency spillway, slope pipe/culvert outlets, etc.). 0 J 6. Skimmer Sizes and Orifice Diameters are calculated based on the NCDEQ Design Methodology and will be LU a LEXIBLE HOSE \ reviewed and approved by the Engineer once a Skimmer supplier/manufacturer has been chosen. a H L = 1.4 X DEPTH �- TO THE OVERFLOW a. MINIMUM LENGTH APPLIES ° ° <° WATER ENTRY UNIT 1. ;,--- SCHEDULE 40 PVC PIPE ° BARREL CMP ti%011 1pffi+� ' - (BARREL OR ARM) °a ° ° ° , . ° •ti�� CAS ,`�J. 1 a I hereby certify that this document was - - - - - - - - - - - - - - ---------- - - - - - - - - - - A. ° C ° ° prepared d is correct to thy me or under my eect best ofmy personal0FS5r0 ,./ `J END VIEW SIDE VIEW MAINTAIN DEPRESSION TO - - - ° ° A. ° ° < A (NO SCALE) MINIMIZE CHANCE OF °O knowledge and belief and that I am a duly _ SKIMMER BECOMING STUCK _ SEAL licensed Professional Engineer under the - : Z:lz SHEET NUMBER DRAWN BY T. R. EVANS 10/10 048820 laws of the St a of orth arolina. • 4r FAIRCLOTH SKIMMER° DISCHARGE SYSTEM WITH OUTLET W. FAIRCLOTH & SON INC. PLAN VIEW ,ya , ` j e�,•� ,: WWW.FAIRCLOTHSKIMMER.COM STRUCTURE TELEPHONE: () 73 -12-1244 266 N.T.S. 'f. ��, EMAIL: WARRENOFA)RCLOTHSKMMER.COM (Signature) r f \ \,:, Date: January 15,2024 l��rrii l��s�� 02CO-H006 �g0 / rV ACCESS ROAD y /le Stage Storage Curve le POROUS BAFFLES (TYP.) SEDIMENT BASIN NO. 7 -� �► DITCH NO. 20 Z ::, SLOPE DRAIN y A cRESTEL. 850.0 of _ �► ACCESS ROAD o EMERGENCY SPILLWAY DETAIL 850.00 TOP OF 3TRUCTURE _ LEVEL CONTROL SECTION (850.00) ---?9L52 4<4� N.T.S. 849.00 I B I I E ERGENC SPILLW Y(848.34) NAD-83 �8_ NC-SPcs 56.6564 gg f 848.00 LU \ BOTTOM OF POND I - O T OOtft. Freeboard � _ 0 /I� 1 T o EL.s43.00 I SKIMMER � ��` - �$� 1 } •0 847.00 2 �' I SEDIMENT BASIN 2 50.00 ft. \ _ ' LINER SYSTEM LIMIT - -- W 846.00 PRINCI DAL SPILL AY(846.34) PRINCIPLE SPILLWAY . � o 72" SQUARE CONCRETE RISER W/ U TRASH RACK AND 67 FT OF 36 IN. CMP 845.00 �C\ i Channel Design (Non-Erodible) Channel Slope: 0.1000 CLEAN OUT LEVEL(844.76) p Manning's In of Channel: 0.0175 N 50%CLEAN OUT EL. 844.76 NORMAL POOL EL. 846.34 _+ OUTLET PROTECTION Channel Type: Trapezoidal, Equal Side Slopes 844.00 ' N / / + Dimensions: Left Side Slope 2.00:1 Discharge: 68.22 cfs Right Side Slope 2.00:1 Depth of Flow: 0.66 feetX. \ + Base Dimension: 50.00 Velocity: 2.00 fps 843.00 Q _118"�\ / 0.00 0.80 1.60 2.40 3.20 4.00 4.80Wetted Perimeter: 52.97 Channel Lining: Grouted Rock Rip Rap �- EMERGENCY SPILLWAY _ /o A' + Area of Wetted Cross Section: 34.09 Freeboard: 1.00 feet LEVEL CONTROL SECTION EL. 848.34 -- _ �+ Accumulative Storage (Acre-Ft) . > Storage volume computations a) a) 1 EMERGENCY SPILLWAY DETAIL SEDIMENT BASIN NO. 7 PRINCIPLE SPILLWAY SEDIMENT BASIN NO.7 m EMERGENCY SPILLWAY� �+� CHUTE SECTION / CHUTE SECTION Outflow ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE ft� (ft) (ac-ft) STORAGE INTERVAL N.T.S. Total Discharge: 79.92 cfs O (ft) (ft) (ac) AREA Water Surface Elevation: 847.34 ft Tailwater Elevation: 0.00 ft 844.00 N/A N/A 0.5001 843.00 N/A N/A 0.4676 PLAN VIEW : SEDIMENT BASIN NO. 7 29.6252 � Detention Base Elevation: 0.00 ft 0.4839 1.00 0.4781 0.4781 1.00 1 844.76 N/A N/A 0.5245 0.5123 0.76 0.3871 0.8652 1.76 SCALE: 1" = 50' . t Outlet#1: Sediment Basin 7 Principle Spillway, Drop Pipe 0.5163 0.24 0.1236 0.9888 2.00 0 1. ft. Freeboard 845.00 N/A N/A 0.5324 z z z z T Riser Top Elev: 846.34 ft 846.00 N/A N/A 0.5654 0.5489 1.00 0.5432 1.5320 3.00 2 25.00 ft. 2 1 Riser Length: 72.00 In 846.34 N/A N/A 0.5769 0.5711 0.34 0.1942 1.7261 3.34 0 0 0 0 Riser Width: 72.00 In 847.00 N/A N/A 0.5992 0.5823 0.66 0.3823 2.1085 4.00 Orifice Coefficient: 0.50 848.00 N/A N/A 0.6336 0.6164 1.00 0.6104 2.7189 5.00 w w w w Weir Coefficient: 3.33 848.34 N/A N/A 0.6455 0.6395 0.34 0.2174 2.9363 5.34 C: ft a a a a Channel Design (Non-Erodible) Channel Slope: 50.0000 Culvert Length: 67.00 849.00 N/A N/A 0.6685 0 Q25 HWD EL. 847.34 0.6511 0.66 0.4275 3.3639 6.00 0.6832 1.00 0.6806 4.0445 7.00 N w w w w Manning's n of Channel: 0.0175 Culvert Diameter: 36.00 in 850.00 N/A N/A 0.6978 0 0 0 1n 900 NORMAL POOL EL. 846.34 900 Channel Type: Trapezoidal, Equal Side Slopes Culvert Invert In: 843.00 ft Dimensions: Left Side Slope 2.00:1 Discharge: 68.24 cfs Culvert Invert Out: 842.00 ft EXISTING GROUND Right Side Slope 2.00:1 Depth of Flow: 0.16 feet Culvert Friction Coefficient: 0.02 0 N N N SKIMMER Base Dimension: 25.00 Velocity: 17.25 fps Culvert Entrance Loss Coefficient: 0.90 ° 50% CLEAN OUT EL. 844.76 EMERGENCY SPILLWAY N 848.3��i��CREST Wetted Perimeter: 25.70 Channel Lining: Grouted Rock Rip Rap 14 ft. Area of Wetted Cross Section: 3.96 Freeboard: 1.00 feet Z N M 850 27 - - 850.00 850 d I BOTTOM EL. 8 .0 " CUTOFF TRENCH 2 FT X 1 FT ANCHOR TRENCH CLASS B STONE EXISTING GROUND (ABUTMENTS) OUTLET PROTECTION 800 800 900 900 0+00 0+50 1+00 1+50 2+00 2+50 Q25 HWD EL. 847.34 FILL MATERIAL 2' MAXIMUM IF NOT CUT TO BEDROCK SEDIMENT BASIN Cross Section A-A' PRINCIPLE SPILLWAY 50% CLEAN OUT EL. 844.76 NORMAL POOL EL. 846.34 LINER SYSTEM 72" SQUARE CONCRETE RISER EXISTING GROUND - - - - - - - - - Scale: 1" = 50' W/TRASH RACK AND 67 FT OF 36" CMP I I 1 L 850 � � 14 ft. 850 1 BOTTOM EL. 843.0 2' 2 FT X 1 FT ANCHOR 14 FT ACCESS TRENCH SEDIMENT BASIN CREST EL. 850.00 SUITABLE EARTHEN MATERIAL LINER SYSTEM COMPACTED TO 95% OF STANDARD 800 800 PROCTOR MAX. DRY DENSITY 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 WITHIN ±2% OPTIMUM MOISTURE CUTOFF TRENCH DETAIL CONTENT Cross Section B-B' 2 FT X 1 FT ANCHOR N z o Skimmer Design - Sediment Basin SB-7 TRENCH N.T.S. o 0 1= Scale: 1" = 50' \ = D Desired Skimmer Drawdown Time 3 days RISER BUOYANCY CALCULATION Y Q N (n a- Desired Skimmer Drawdown Rate 9,774 cf/day w Q :200 Q I• _j Z \ (n Skimmer Size 3 in Demonstrate adequate stability by showing the downward force is a minimum of 1.25 o m times the upward force. o N Head on Orifice 0.25 ft Z z o C) d Calculated Orifice Diameter 1.680 in 2 FT X 1 FT ANCHOR TRENCH Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) 0 � � 6i _j bi � Z o a w1-- Q o J Actual Orifice Diameter(1/4 inch increments) 2.75 in RISER DETAILS 14 ft. of 0 " 0 TRASH RACK �{ 72" Square Concrete Riser Actual Skimmer Drawdown Time 3.25 days EL. 850.00 Height=Approximately 4' SKIMMER V FREEBOARD Weight= 11,320 Ib 1010101000❑❑❑❑00111000 EMERGENCY SPILLWAY DEPTH MERGENCY SPILLWAY EL.848.34 Required Volume 28,350 cf 00❑❑❑00❑❑❑❑00❑❑❑❑0 Where: NORMAL POOL EL. 846.34 0❑❑❑❑00❑❑❑❑00❑❑❑❑0 1'FREEBOARD MIN. 2 2 Riser Weight = 11,320 Ib EXISTING GRADE I I 1 F 1 CONCRETE I Weight of Concrete Base = (Length x Width x Depth)x Unit Weight of Concrete Q 50% CLEANOUT EL. 844.76 RISER i Z WATER ENTRY UNIT I I �\ \ \ \ \� \� \� \ \ Weight of Concrete Base = (7 ft x 7 ft x 0.5 ft) x 150 Ib/ft - 3,675 Ib Z WITH TRASH SCREEN GENERAL NOTES: I 3.34' I \ a_ 1. PROPER DESIGN MUST BE COMPLETED TO MINIMIZE PIPING AROUND DISCHARGE \ \ \ \ \\\ \� \� \\ \\ \\ \\ \ \\ \\\\\ \\ \\ \\ \\ \ \\\\\\ \\\ J PIPE. 4'X 4'X V CLASS B STONE 2. PROPER ORIFICE OPENING MUST BE SELECTED TO ENSURE POND DRAINS IN 1, a ° 36" DIA BARREL CMP \ \ \ \ \ \ \ \ \ \ \ \ Structure Weight - 11,320 Ib + 3,675 Ib - 14,995 Ib C O CORRECT AMOUNT OF TIME. MODIFICATIONS MAY BE REQUIRED IF FIELD de` a \ \ \ \ \ \ \ - = 0000o CONDITIONS WARRANT A CHANGE. I---- - --------I \ �\ \\ \\ \\ \\\\\\\ \\\\ \ \\ \ \ \\\\ \\ \ \ LPL LU 3. EMBANKMENT MUST BE COMPACTED TO DESIGN SPECIFICATIONS. \ \\\ \\ \\� \�\\ Buoyancy = Displacement Volume of Riser x 62.4 lb/ft' Z Q ~ 0 4. EMERGENCY SPILLWAY MUST BE CORRECTLY SIZED AND EROSION PROTECTION . ORIFICE OPENING INSIDE THE INSTALLED. •• • A. . • ° d \ \ \ 5. EROSION PROTECTION MUST BE INSTALLED ALONG THE EMBANKMENT AND AT THE BOTTOM OF POND EL. 843.00 d •° J V W ORIZONTAL TUBE WITH A DISCHARGE END OF THE PIPE. °e d ° d • e • 3 3 - CONSTANT HYDRAULIC HEAD 6. INSPECT SYSTEM REGULARLY TO ENSURE IT IS FUNCTIONING IN A CORRECT • , • d• • d • Buoyancy = 144 ft x 62.4 Ib/ft - 8,985.6 Ib O = Z J MANNER' STABILIZED OUTLET Z LL 7. EIGHT SIZES OF SKIMMERS ARE AVAILABLE, REFER TO THE FLOW SHEET, CUT SEDIMENT BASIN Downward Force structure weight) > 1.25 x Upward Force (buoyancy)SHEET, AND INSTRUCTIONS ON WEB SITE FOR EACH SIZE. ANTI-FLOTATION BASE (IF APPLICABLE) CUT OFF TRENCH ( g ) P ( Y Y) a � V Q SCHEDULE 40 PVC PIPE LINER SYSTEM V O (BARREL OR ARM) ARTHEN EMBANKMENT ELEVATION VIEW MAXIMUM HEIGHT OF FLOAT WHEN NO MERGENCY SPILLWAY OTHER STORM WATER DISCHARGE ANTI-FLOTATION RISER FILL N.T.S. 14,995 Ib > 8,985.E Ib x 1.25 Z OPENINGS EXIST (IF APPLICABLE) 14,995 Ib > 11,232 Ib m li LEXIBLE HOSE (MAJOR STORM EVENT) NOTES D � Z Z FLOAT 1. Portland cement concrete (type II recommended)for the inlet base shall have a minimum compressive = _ 72" SQUARE CONCRETE RISER ANTI FLOTATION BASE (IF APPLICABLE) Z W a �I� H INVERT OF LOWEST STORM PVC VENT strength of 4,000 psi. �_ -Ili-II GRATE WATER DISCHARGE OPENING PIPE 2. Where corrugated aluminum or aluminized steel pipe is used, all areas where the pipe is to be in contact with J O M_ HI� • d TOP VIEW - (MINOR STORM EVENT) LOAT • 4 ° 4 ° • 4 • concrete shall be painted with a black bituminous enamel paint. V 0 LU ' SECURELY FASTENED TO _ FLEXIBLE HOSE MUST BE • • Z ' e ° . d 3. Riser to be constructed according to the Riser Details. W ° , PVC VENT PIPE I STORM WATER THE WATER QUALITY °d ° 4. Sediment Basin Liner System to be installed per manufacture specifications utilizing batten strip at Z (n f/ DISCHARGE DISCHARGE OPENING , Z OPENING concrete riser and pipe boot for culvert. 10 OUTLET PIPE �-, • d 5. Cushion geotextile to be installed at locations where riprap is to be placed above the liner system Q • d • " \ (emergency spillway, slope pipe/culvert outlets, etc.). o U) J _ ° 6. Skimmer Sizes and Orifice Diameters are calculated based on the NCDEQ Design Methodology and will be yj Q -- _ LEXIBLE HOSE ° \ it H L = 1.4 X DEPTH 6-0" T-O" reviewed and approved by the Engineer once a Skimmer supplier/manufacturer has been chosen. a (' �- TO THE OVERFLOW - MINIMUM LENGTH APPLIES WATER ENTRY UNIT ii i' i • \ \ \\ 1►1e1tl+ / SCHEDULE 40 PVC PIPE d. '• I hereby certify that this document was �,� OA - i (BARREL OR ARM) ° • . prepared by me or under my direct personal ' '� =1 BARREL CMP • d • supervision and is correct to the best of my a END VIEW SIDE VIEW MAINTAIN DEPRESSION TO ' F�SStO knowledge and belief and that I am a duly SEAL { :F (NO SCALE) MINIMIZE CHANCE OF d a ° • ° ° ° SKIMMER BECOMING STUCK d licensed Professional Engineer under the 048820 �= SHEET NUMBER DRAWN BY T. R. EVANS 10/10 • ° •, • A.° d d laws of the St a a of O h arolina. • '`�-4 FAIRCLOTH SKIMMER° DISCHARGE SYSTEM WITH OUTLET W W.FAIRCLOT I SON INC. 4`GIN��4',• -� TELEPHONE:FAX (919)1 93273 26 6244 (Signature) r �$.• �`�, 02C0-H007 STRUCTURE PLAN VIEW Date: January15,2024 .,r ++ ii�r�ti�� EMAIL: WARREN®FAIRCLOTHSKIMMER.COM �I 1+ N.T.S. 900 /t Stage Storage Curve /`` `� EMERGENCY SPILLWAY DETAIL SEDIMENT BASIN NO. 8 FLUME / LEVEL CONTROL SECTION 880.00 (880.00) STRUCTURE 880 F / DITCH NO. 22 N.T.S. ` X:A - 879.00 � 880 / ACCESS ROAD � 56.1896 EMER ENCY PILLW (878.45) 0 J � _ s7s.00 WASTE ROCK PILE /F / /te 5555 fftt� C ACCESS ROAD SLOPE DRAIN i /to 1� 17 / 1 1 0 nbt. Freeboard 877.00Ile ` SEDIMENT BASIN LINER 2 2 P INCIP SPILL AY(87 .45) Q SYSTEM LIMIT 50.00 ft. 876.00 [' / PC SKIMMER ` � _40 * w PRINCIPLE SPILLWAY 72" SQUARE ' Channel Design (Non-Erodible) Wetted Perimeter: 52.45 Discharge: 49.39 cfs 875.00 Area of Wetted Cross Section: 27.97 Depth of Flow: 0.55 feet CONCRETE RISER W/TRASH RACK i p BOTTOM OF POND AND 46 FT OF 36 IN. CMP Channel Type: Trapezoidal, Equal Side Slopes Velocity: 1.77 fps 874.00 EL.87C.00 i �� j' r� Dimensions: Left Side Slope 2.00:1 Channel Slope: 0.1000 am Right Side Slope 2.00:1 Manning's In of Channel: 0.0175 Channel Lining: Grouted Rock Rip Rap XEAN GUT LEV EL(873. 4) Base Dimension: 50.00 Freeboard: 1.00 feet 873.00 POROUS BAFFLES (TYP. �-1 yes �� ' U y I ` 872.00 y E MERGENCY SPILLWAY D ETA I L Channel Design (Non-Erodible) ggo.00 .�..=:r � ST-105 s71.00 y � _ cREST •.•�•r•::��•.f ��, CHUTE SECTION Channel Type: Trapezoidal, Equal Side Slopes N � Dimensions: Left Side Slope 2.00:1 �I.�.r.�.�.r. . � N.T.S. SLOPE DRAIN }��Cv :r::r:f Right Side Slope 2.00:1 870.00 ACCESS ROAD OUTLET PROTECTION/ Base Dimension: 20.00 0.00 0.40 0.80 1.20 1.60 2.00 2.40 2.80 3.20 3.60 4.00 4.40 00) �•r• rr• I / Q 24.5884 Wetted Perimeter: 20.66 • •-•- � A / SEDIMENT BASIN NO. 8 PRINCIPLE SPILLWAY Accumulative Storage (Acre-Ft) / Area of Wetted Cross Section: 2.99 50%CLEAN OUT EL. 873.64 �/ - X J .1 / (� X-�' / Channel Slope: 50.0000 Outflow Storage volume computations � .. Q -�aL'S(�- a-� T,c -�---� MINE PERMIT BOUNDARY Manning's n of Channel: 0.0175 Total Discharge: 73.29 cfs _-- J Water Surface Elevation: 877.45 ft _0 NORMAL-POOL EL. 876.45 1 L_X_X L / /; 1 1 0 1.U�tft. Freeboard SEDIMENT BASIN NO.8 �. X y n - __------ VEGETATED EXIT CHANNEL Discharge: 49.36 cfs Tailwater Elevation: 0.00 ft �.'S(x-X x ____----- / 2 2 7_ Depth of Flow: 0.15 feet Detention Base Elevation: 0.00 ft 20.00 ft.- - Velocity: 16.53 fps ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE pp J EMERGENCY SPILLWAY Outlet#1: Sediment Basin 8 Principle Spillway, Drop Pipe (ft) (ft) (ft) (ac) AREA (ft) (ac-ft) STORAGE INTERVAL Channel Lining: Grouted Rock Rip Rap (ac) (ac-ft) (ft) EMERGENCY SPILLWAY CHUTE SECTION / Freeboard: 1.00 feet ft Riser Top Elev: 876.45 LEVEL CONTROL SECTION EL. 878.45 Riser Length: 72.00 in 649 Riser Width: 72.00 In 87 871.00.00 N/A N/A 0.2923 N/A N/A 0.223 0.2786 1.00 0.2735 0.2735 1.00 Channel Design (Non-Erodible) Orifice Coefficient: 0.50 872.00 N/A N/A 0.3196 0.3060 1.00 0.3010 0.5745 2.00 PLAN VIEW : SEDIMENT BASIN NO. 8 VEGETATED EXIT CHANNEL DETAIL Weir Coefficient: 3.33 873.00 N/A N/A 0.3476 0.3336 1.00 0.3285 0.9030 3.00 Channel Type: Trapezoidal, Equal Side Slope Culvert Length: 46.00 ft 873.64 N/A N/A 0.3658 0.3567 0.64 0.2273 1.1303 3.64 SCALE: 1" - 50' N.T.S. Dimensions: Left Side Slope 2.00:1 Culvert Diameter: 36.00 In 874.00 N/A N/A 0.3762 0.3619 0.36 0.1294 1.2597 4.00 F F F F Right Side Slope 2.00:1 Culvert Invert In: 874.12 ft 0.3908 1.00 0.3855 1.6452 5.00 w w w w Base Dimension: 20.00 875.00 N/A N/A 0.4054 Culvert Invert Out: 873.66 876.00 N/A N/A 0.4355 0.4205 1.00 0.4150 2.0602 6.00 ft 0 0 0 0 Culvert Friction Coefficient: 0.02 876.45 N/A N/A 0.4494 0.4424 0.45 0.1991 2.2593 6.45 26.3152 Wetted Perimeter: 22.59 0.4509 0.55 0.2462 2.5055 7.00 M M M M Culvert Entrance Loss Coefficient: 0.90 877.00 N/A N/A 0.4663 W W W W Area of Wetted Cross Section: 12.25 0 0 0 0 �.558g t 0.4820 1.00 0.4763 2.9818 8.00 1 1.0 ft. Freeboard 878.00 N/A N/A 0.4977 w w w w 0.5043 0.45 0.2269 3.2087 8.45 c a a a a Channel Slope: 1.0000 878.45 N/A N/A 0.5109 0 2 I _I 2 Manning's n of Channel: 0.0245 880.00 N/A N/A 0.5563 0.5270 1.55 0.8215 4.0302 10.00 ; N N N N I- 20.00 ft. w w w > Discharge: 49.38 cfs Depth of Flow: 0.58 feet N N � N Velocity: 4.03 fps 0 N L Channel Lining: Vegetated cu 50% CLEAN OUT EL. 873.64 SKIMMER Freeboard: 1.00 feet Z 5 N M CUTOFF TRENCH Q25 HWD EL. 878.45 NORMAL POOL EL. 876.45 m 900 I 25 ft. I 900 50% CLEAN OUT EL. 873.64 EXISTING GROUND (ABUTMENTS) EXISTING GROUND I I NORMAL POOL EL. 876.45 �I 141 CREST 880.0 FILL MATERIAL 900 Q25 HWD EL. 878.45 900 2' MAXIMUM IF NOT CUT TO BEDROCK 1 0 1% 14 FT ACCESS BOT O EL. 870.0 CREST EL. 850.00 - - - 850 OUTLET PROTECTION 850 14 ft. 1 CLASS B STONE -1 1 2 FT X 1 FT ANCHOR 2 FT X 1 FT ANCHOR BOTTOM EL. 870.0 TRENCH SEDIMENT BASIN TRENCH 850 850 ' L LINER SYSTEM 2 800 800 EXISTING GROUND 2 FT X 1 FT ANCHOR 2 FT X 1 FT ANCHOR SUITABLE EARTHEN MATERIAL 0+00 0+50 1+00 1+50 2+00 2+50 TRENCH SEDIMENT BASIN TRENCH COMPACTED TO 95% OF STANDARD LINER SYSTEM PROCTOR MAX. DRY DENSITY - , PRINCIPLE SPILLWAY WITHIN ±2% OPTIMUM MOISTURE Cross Section A-A 72" SQUARE CONCRETE RISER 800 800 CONTENT Scale. 1 - 50 W/TRASH RACK AND 46' FT OF 36 CMP 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 CUTOFF TRENCH DETAIL N.T.S. Cross Section B-B' Scale: 1" = 50' CV °0 Z p 3: I N O I= m Skimmer Design - Sediment Basin SB-8 J Z � � Ln J o RISER BUOYANCY CALCULATION Y Q N a 0)w Q Desired Skimmer Drawdown Time 3 days Q '• Demonstrate adequate stability by showing the downward force is a minimum of 1.25 0 Desired Skimmer Drawdown Rate 20,109 cf/day times the upward force. o o 2 FT X 1 FT ANCHOR TRENCH w w v 0 Skimmer Size 4 in RISER DETAILS 14 ft. Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) � Q w � Q 0 w Head on Orifice 0.333 ft TRASH RACK w � = Q " � J EL. 880.00 0 0 0 `" a w Calculated Orifice Diameter 2.242 in SKIMMER + 72" Square Concrete Riser 1'FREEBOARD Height=Approximately 7' Actual Orifice Diameter (1/4 inch increments) 2.25 in DODD 00000110 EMERGENCY SPILLWAY DEPTH Actual Skimmer Drawdown Time 3.04 days 0110 000 MERGENCY SPILLWAY EL.878.45 Weight= 17,170 lb ❑❑❑❑00❑❑❑❑� FREEBOARD MIN.NORMAL POOL EL. 876.45 ID 00000000000000 1' I I 2 2 Where: EXISTING GRADE-,.,. i i 1 Riser Weight= 17,170 lb 1 Required Volume 20,520 CfI CONCRETE I 50% CLEANOUT EL. 873.64 RISER I 6.45' I �\ \ \\ \ \\ \ \\ \\\ \\ \\ \\ \\ \ \\ \\ \\ \\ \\ \\ \ \\ \\\\ \\ \ \ \ \ \ \ Weight of Concrete Base = (Length x Width x Depth) x Unit Weight of Concrete Z Z J WATER ENTRY UNIT I I \ \ \ \\ WITH TRASH SCREEN GENERAL NOTES: 4'X 4'X 1' CLASS B STONE I ______________ I 1. PROPER DESIGN MUST BE COMPLETED TO MINIMIZE PIPING AROUND DISCHARGE , 36" DIA BARREL CMP \ \ \ \ \ \ \ \\ \\ \ \\\\\\\ Weight of Concrete Base = (7 ft x 7 ft x 0.5 ft)x 150 lb/ft3 = 3,675 Ib J PIPE. 1' ' • ° I .� O 2. PROPER ORIFICE OPENING MUST BE SELECTED TO ENSURE POND DRAINS IN I n " ° CORRECT AMOUNT OF TIME. MODIFICATIONS MAY BE REQUIRED IF FIELD I---- - --------I \\ \\ \\\\\ \\�\\\\\\\\\\ \ Structure Wei ht = 17,170 Ib + 3,675 Ib = 20,845 Ib ''^^ LL V+ �/ r CONDITIONS WARRANT A CHANGE. ° \ \\ \ \ \ \\\ ��\ \�\\\\� \�\ �\ \\ g Q I.L 00 LU 3. EMBANKMENT MUST BE COMPACTED TO DESIGN SPECIFICATIONS. Z. ° d Q 4. EMERGENCY SPILLWAY MUST BE CORRECTLY SIZED AND EROSION PROTECTION BOTTOM OF POND EL. 870.00 d • °a • dO ° Buoyancy = Displacement Volume of Riser x 62.4 lb/ft' INSTALLED. d a - ORIFICE OPENING INSIDE THE 5. EROSION PROTECTION MUST BE INSTALLED ALONG THE EMBANKMENT AND AT THE ° ° d ONST NTAL TUBE WITH A ° d• a ° d ° J Z J CONSTANT HYDRAULIC HEAD DISCHARGE END OF THE PIPE. a a - T 6. INSPECT SYSTEM REGULARLY TO ENSURE IT IS FUNCTIONING IN A CORRECT STABILIZED OUTLET Buoyancy= 252 ft x 62.4 lb/ft' = 15,724.8 lb O = _ MANNER. CUT OFF TRENCH 7. EIGHT SIZES OF SKIMMERS ARE AVAILABLE, REFER TO THE FLOW SHEET, CUT SEDIMENT BASIN ANTI-FLOTATION BASE (IF APPLICABLE) I` Z IL SHEET, AND INSTRUCTIONS ON WEB SITE FOR EACH SIZE. LINER SYSTEM ELEVATION VIEW Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) F SCHEDULE 40 PVC PIPE (BARREL OR ARM) ARTHEN EMBANKMENT ANTI-FLOTATION RISER FILL N.T.S. MAXIMUM HEIGHT OF FLOAT WHEN NO 20,845 Ib > 15,724.8 Ib x 1.25 Z MERGENCY SPILLWAY OTHER STORM WATER DISCHARGE (IF APPLICABLE) m OPENINGS EXIST LEXIBLE HOSE (MAJOR STORM EVENT) 20,845 Ib > 19,656 Ib NOTES D � 0 FLOAT 72" SQUARE CONCRETE RISER ANTI-FLOTATION BASE (IF APPLICABLE) _ Z Z 1. Portland cement concrete (type II recommended)for the inlet base shall have a minimum compressive � Q INVERT OF LOWEST STORM PVC VENT < d • Z I.LI ' strength of 4,000 psi. Z C III-I GRATE WATER DISCHARGE OPENING PIPE • ° d HMI_+I H (MINOR STORM EVENT) ° a 4 ° 2. Where corrugated aluminum or aluminized steel pipe is used, all areas where the pipe is to be in contact with J O TOP VIEW II LOAT e 'FLEXIBLE HOSE MUST BE d concrete shall be painted with a black bituminous enamel paint. 0 W U \ i SECURELY FASTENED TO c • 3. Riser to be constructed according to the Riser Details. Z W - /VC VENT PIPE STORM WATER THE WATER QUALITY DISCHARGE DISCHARGE OPENING A ° 4. Sediment Basin Liner System to be installed per manufacture specifications utilizing batten strip at O Z (n Z - OPENING °d, concrete riser and pipe boot for culvert. Q OUTLET PIPE r__ - a° d \\\ \\� 5. Cushion geotextile to be installed at locations where riprap is to be placed above the liner system 2 Q ' (emergency spillway, slope pipe/culvert outlets, etc.). 0 V) J ° 6-0" T-0" 6. Skimmer Sizes and Orifice Diameters are calculated based on the NCDEQ Design Methodology W a ' I LEXIBLE HOSE g gY and will be � H L = 1.4 X DEPTH - reviewed and approved by the Engineer once a Skimmer supplier/manufacturer has been chosen. a 0 TO THE OVERFLOW • \ \ MINIMUM LENGTH APPLIES WATER ENTRY UNIT (' i' ° <• • ti,i{11Hii/� SCHEDULE 40 PVC PIPE •' BARREL CMP I hereby certify that this document was yt�� 0i,� ' - (BARREL OR ARM) - - - - - - - - - - - - d prepared by me or under my direct personal L D f, I _ _ __ d • a . • supervision and is correct to the best of my C) END VIEW SIDE VIEW MAINTAIN DEPRESSION TO - - - d MINIMIZE CHANCE of •, . A. ° A ^ d ° < knowledge and belief and that I am a duly _ `¢' SEAL g�•:� (NO SCALE) SKIMMER BECOMING STUCK DRAWN BY T. R. EVANS 10/10 °< d a licensed Professional Engineer under the 048820 SHEET NUMBER laws of the St a e f o h Carolina. FAIRCLOTH SKIMMER() DISCHARGE SYSTEM WITH OUTLET J. W. FIRCLO H I SON INC. ��'•. /4/GIN�CC; TELEPHONE::(919)IM32R'C04 PLAN VIEW `'. '•''""'' + STRUCTURE (Signature) '• Fkv 8, w0�� EMAIL: WARREN@FAIRCLOTHSKIMMER.COM `�I N.T.S. Date: January 15,2024 �'�i+ini>I■��' 02C0-E005 EMERGENCY SPILLWAY EMERGENCY SPILLWAY DETAIL CHUTE SECTION C Channel Design (Non-Erodible) Stage Storage Curve 0 LEVEL CONTROL SECTION SEDIMENT BASIN NO. 9 CENTRLI CUTOTRENCH �� I co c Dimensions:Co N.T.S. Channel Type. Trapezoidal, Equal Side Slopes _ o Left Side Slope 2.00:1 860.00 Right Side Slope 2.00:1 (60.0)STRUCTURE EMERGENC SPILLWAY A�x Base Dimension: 20.00 J LEVEL CONTROL SECTIOI kEL. = 858.07 OUTLET PROTECTION 27.7276 Wetted Perimeter: 24.17 Area of Wetted Cross Section: 20.37 EMERGENCY SPI LWAY(858.07) 1.00ft. Freeboard 85s.00 0.93 ft. Channel Slope: 0.1000 Manning's In of Channel: 0.0175 Q 20.00 ft. I Discharge: 48.83 cfs NAD-8Z - Depth of Flow: 0.93 feet J 856.00 NC-SPJtS/ / / p PRI CIPAL SPILLWAY(856.07) w Velocity: 2.40 fps / k Channel Lining: Grouted Rock Rip Rap ;B Freeboard: 1.00 feet / A- ♦ ` \ / / W 854.00 ' NORMAL POOL E �856.07 SKIMMER PRINCIPLE SPILLWAY 72 SQUARE CONCRETE RISER W/TRASH RACK CLEAN O T LEVEL(853.4 ) ► CO I k / °� / AND 63 FT OF 30IN. CMP EMERGENCY SPILLWAY DETAIL Channel Design (Non-Erodible) v 50i°CLEAN OUT L. 853.41 I CHUTE SECTION Channel Type: Trapezoidal, Equal Side Slopes 852.00 / B TT / N.T.S. Dimensions: Left Side Slope 2.00:1 ID/ OF PO N � k / / \ Right Side Slope 2.00:1 � o N POROUS BAFF L.850.00� S (TYP.) 1 Base Dimension: 10.00 ' B Wetted Perimeter: 11.95 CM 15.74 ft. 850.00 Z) o / o°0 0.44 ft. Area of Wetted Cross Section: 4.74 0.00 0.70 1.40 2.10 2.80 3.50 4.20 • a / 1 1 1.00ft. Freeboard 71 � 7_ Channel Slope: 18.0000 2 2 Manning's n of Channel: 0.0330 Accumulative Storage (Acre-Ft) o 10.00 ft.� Q Discharge: 48.83 cfs _ 70 LOPE DRAIN Depth of Flow: 0.44 feet Storage volume computations • 00 / _\ �° Velocity: 10.31 fps W (� °° SEDIMENT BASIN NO.9 8 Channel Lining: Grouted Rock Rip-Rap ' 00 Freeboard: 1.00 feet ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE SLOPE DRAIN 0L° (ft) (ft) (ft) (ac) AREA (ft) (ac-ft) STORAGE INTERVAL r (ac) (ac-ft) (ft) orO�v 0 50% CLEAN OUT EL. 853.41 900 900 SEDIMENT BASIN LINER 850.00 N/A N/A 0.2370 AC / Q25 HWD EL. 857.07 NORMAL POOL EL. 856.07 851.00 N/A N/A o.2600 0.2485 1.00 0.2442 0.2442 1.00 SYSTEM LIMIT 2 FT X 1 FT ANCHOR 0.2719 1.00 0.2676 0.5118 2.00 2 FT X 1 FT ANCHOR 852.00 N/A N/A 0.2838 TRENCH SKIMMER 0.2964 1.00 0.2917 0.8035 3.0o n n n nTRENCH 853.00 N/A N/A 0.3090 853.41 N/A N/A 0.3197 0.3144 0.41 0.1275 0.9310 3.41 14 ft. 2 M 0.3222 0.59 0.1899 1.1208 4.00 M M M M / ♦ CREST 860.0 _ _ 854.00 N/A N/A 0.3354 0 0 0 0 850 21 2' 850 855.00 N/A N/A 0.3626 0.3490 1.00 0.3440 1.4649 5.00 J J J J '/� 0.3766 1.00 0.3714 1.8363 6.00 ��o�� 6,19/0 856.07 N/A N/A 0.3925 0.3915 0.07 0.0274 1.8637 6.07 0 0 0 0 ° BOTTOM EL. 850.0 856.07 N/A N/A 0.3925 � � � � 0.4048 0.93 0.3721 2.2358 7.00 w w w w SEDIMENT BASIN 858.00 N/A N/A 0.4484 rn N N N N OUTLET PROTECTION CLASS B STONE 57 0.4338 1.00 0.4284 2.6642 s.00 ° 0 0 0 o / LINER SYSTEM 858.07 N/A N/A 0.450307 0315 57 4) s s s -> 0.4761 14494 0.93 0.9153 3.6110 10 00 � UJ UJ UJ Ld / \ 800 800 860.00 N/A N/A 0.5037 N N \ N WASTE ROCK PILE �► N \ cq M ACCESS OAD / 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 r Section A-A' CUTOFF TRENCH o N N PRINCIPLE SPILLWAY C OSS Sect O � /T -�7"4 g2o 72" SQUARE CONCRETE RISER SLOPE DRAIN / W/TRASH RACK AND 63 FT OF 30" CMP Scale. 1 = 50 EXISTING GROUND (ABUTMENTS) z / T 92o SEDIMENT BASIN NO. 9 PRINCIPLE SPILLWAY 000,�/ Outflow FILL MATERIAL T + T Total Discharge: 78.72 cfs 2' MAXIMUM IF NOT CUT TO BEDROCK 50% CLEAN OUT EL. 853.41 I � / NORMAL POOL EL. 856.07 Water Surface Elevation: 857.07 ft IL 900 14 FT ACCESS 900 Tailwater Elevation: 0.00 ft - - - - - >� T T Detention Base Elevation: 0.00 ft 1 L I 90o Q25 HWD EL. 857.07 CREST EL. 860.00 1 Outlet#1: Sediment Basin 9 Principle Spillway, Drop Pipe T Riser Top Elev: 856.08 ft 2 z` Riser Length: 72.00 in 2' f 71 ACCESS ROAD ,r aao 850 ?'� - - - 850 Riser Width: 72.00 in SUITABLE EARTHEN MATERIAL BOTTOM EL. 850.0 Orifice Coefficient: 0.50 COMPACTED TO 95% OF STANDARD 2 FT X 1 FT ANCHOR 2 FT X 1 FT ANCHOR Weir Coefficient: 3.33 PLAN VIEW : SEDIMENT BASIN NO. 9 SEDIMENT BASIN 63 ft PROCTOR MAX. DRY DENSITY TRENCH TRENCH Culvert Length: .00 WITHIN ±2% OPTIMUM MOISTURE LINER SYSTEM Culvert Diameter: 30.00 in CUTOFF TRENCH DETAIL CONTENT SCALE: 1" = 50' Culvert Invert In: 850.00 ft 800 800 Culvert Invert Out: 846.00 ft N.T.S. 0+00 0+50 1+00 1+50 2+00 2+50 Culvert Friction Coefficient: 0.02 Culvert Entrance Loss Coefficient: 0.90 Cross Section B-B' Scale: 1" = 50' z d' o rn Skimmer Design - Sediment Basin SB-9 RISER BUOYANCY CALCULATION a co Skimmer Drawdown Time 3 days 2 FT X 1 FT ANCHOR TRENCH c� Y Q N rn Desired Skimmer Drawdown Rate 20,109 cf da q y y g J z \ N / y RISER DETAILS 14 ft. Demonstrate adequate stability b showing the downward force is a minimum of 1.25 w a � oo a � Skimmer Size 4 in TRASH RACK + times the upward force. o EL. 860.00 Head on Orifice 0.333 ft SKIMMER o o 1'FREEBOARD Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) z z Y w w o Li Calculated Orifice Diameter 2.242 in 01111 00011110 EMERGENCY SPILLWAY DEPTH MERGENCY SPILLWAY EL.858.07 N Q w Q O Ld a❑❑❑❑oo❑❑❑❑aa❑❑❑❑o 72" Square Concrete Riser LIJo o M o N a Actual Orifice Diameter(1/4 inch increments) 2.25 in NORMAL POOL EL. 856.07 a❑❑❑❑oo❑❑❑❑aa❑❑❑❑o V FREEBOARD MIN. Actual Skimmer Drawdown Time 3.17 days = I I 2 2 Height Approximately 6' I 1 1 Weight= 15,220 Ib I Required Volume 21,366 cf EXISTING GRADE I CONCRETE I Where: 50% CLEANOUT EL. 853.41 1 RISER i �\ \ \ \\ \• • \\ \ \\ \\\ \\ \\ \\ \\ \ \\ \\ \ \ \ \ \ \ \ \ \ \ Riser Weight= 15,220 Ib - -- 6-07----- 4' X 4'X 1' CLASS B STONE �- - -� 30 DIA BARREL CMP \ a° • \ \ \ \ \ \ Weight of Concrete Base = (Length x Width x Depth)x Unit Weight of Concrete WATER ENTRY UNIT A. \ \\ \�� \\\ \\ \� \� \ Weight of Concrete Base = (7 ft x 7 ft x 0.5 ft) x 150 Ib/ft3= 3,675 Ib Z Z J WITH TRASH SCREEN GENERAL NOTES: ° d 1. PROPER DESIGN MUST BE COMPLETED TO MINIMIZE PIPING AROUND DISCHARGE d . ° •a • •� Z PIPE. BOTTOM OF POND EL. 850.00 d Q 2. PROPER ORIFICE OPENING MUST BE SELECTED TO ENSURE POND DRAINS IN • , da ° n ' a Structure Weight = 15,220 Ib + 3,675 Ib = 18,895 Ib O r CORRECT AMOUNT OF TIME. MODIFICATIONS MAY BE REQUIRED IF FIELD ° . • d ° C CONDITIONS WARRANT A CHANGE. STABILIZED OUTLET 3. EMBANKMENT MUST BE COMPACTED TO DESIGN SPECIFICATIONS. SEDIMENT BASIN Buoyancy Displacement Volume of Riser x 62.4 lb/ft' LU 4. EMERGENCY SPILLWAY MUST BE CORRECTLY SIZED AND EROSION PROTECTION ANTI-FLOTATION BASE (IF APPLICABLE) CUT OFF TRENCH y y - p ORIFICE OPENING INSIDE THE INSTALLED. LINER SYSTEM ELEVATION VIEW ORIZONTAL TUBE WITH A 5. EROSION PROTECTION MUST BE INSTALLED ALONG THE EMBANKMENT AND AT THE CONSTANT HYDRAULIC HEAD DISCHARGE END OF THE PIPE. N.T.S. Buoyancy = 216 ft'X 62.4 lb/ft' = 13,478.4 Ib J O I.I.I 6. INSPECT SYSTEM REGULARLY TO ENSURE IT IS FUNCTIONING IN A CORRECT ANTI-FLOTATION RISER FILL O = Z J MANNER. 7. EIGHT SIZES OF SKIMMERS ARE AVAILABLE, REFER TO THE FLOW SHEET, CUT (IF APPLICABLE) Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) Z LL SHEET, AND INSTRUCTIONS ON WEB SITE FOR EACH SIZE. A/ Fn O SCHEDULE 40 PVC PIPE Lf� (BARREL OR ARM) ARTHEN EMBANKMENT MAXIMUM HEIGHT OF FLOAT WHEN NO 72" SQUARE CONCRETE RISER ANTI-FLOTATION BASE (IF APPLICABLE) 18,895 Ib > 13,478.4 Ib x 1.25 V 0WA 18,895 Ib > 16,848 Ib Z li MERGENCY SPILLWAY OTHER STORM WATER DISCHARGE ' � M OPENINGS EXIST d W LEXIBLE HOSE (MAJOR STORM EVENT) ° d ' NOTES � 0 � 9 • J • FLOAT ° . B ` ° • ,A ° : 1. Portland cement concrete (type II recommended)for the inlet base shall have a minimum compressive = Z Z _ INVERT OF LOWEST STORM PVC VENT ° strength of 4,000 psi. ZLLJ GRATE WATER DISCHARGE OPENING PIPE HMI_+I-H II (MINOR STORM EVENT) d 2. Where corrugated aluminum or aluminized steel pipe is used, all areas where the pipe is to be in contact with J TOP VIEW III "_I!j111Ij1I_1I9TVUT!T= FLEXIBLE HOSE MUST BE LOAT d \ ° ° \ concrete shall be painted with a black bituminous enamel paint. Q W ° ' SECURELY FASTENED TO \ \ 3. Riser to be constructed according to the Riser Details. �VC VENT PIPE I STORM WATER THE WATER QUALITY a Z ' I DISCHARGE DISCHARGE OPENING ° 6'-0" 7'-0" 4. Sediment Basin Liner System to be installed per manufacture specifications utilizing batten strip at Z '^ OPENING concrete riser and pipe boot for culvert. O 0 V+ Z OUTLET PIPE _ - \� �s 5. Cushion geotextile to be installed at locations where riprap is to be placed above the liner system Q i d a •• . (emergency spillway, slope pipe/culvert outlets, etc.). Q J LEXIBLE HOSE • ° ° 6. Skimmer Sizes and Orifice Diameters are calculated based on the NCDEQ Design Methodology and will be W Q a = H L = 1.4 X DEPTH d BARREL CMP reviewed and approved by the Engineer once a Skimmer supplier/manufacturer has been chosen. f^ i I- TO THE OVERFLOW ° . ° V MINIMUM LENGTH APPLIES d 4 ° ° ° ° Ia d ° a WATER ENTRY UNIT ( A. ° SCHEDULE 40 PVC PIPE ° A. ` d ��111kili ' - - i' - - - - - - - - - (BARREL OR ARM) a °' ° A. d I hereby certify that this document was `Y�ti�� _ _ - - - - - - - - -I prepared by me or under my direct personal '� ,.:.. Q r END VIEW SIDE VIEW MAINTAIN DEPRESSION TO supervision and is correct to the best of my (NO SCALE) MINIMIZE CHANCE OF PLAN VIEW knowledge and belief and that I am a duly Q SEAL SKIMMER BECOMING STUCK N.T.S. _ = _ DRAWN BY T. R. EVANS 10/10 licensed Professional Engineer under the - - 0413820 r z SHEET NUMBER ® J. W. FAIRCLOTH & SON INC. laws of the St a a Of h arolina. : t4: FAIRCLOTH SKIMMER DISCHARGE SYSTEM WITH OUTLET WWW.FAIRCLOTHSKIMMER.COM ;T'�'.,c�`4,GIN �P,• � TELEPHONE: (919) 732-1244 - ' •' a.•' STRUCTURE FAX: (919) 732-1266 EMAIL: WARREN®FAIRCLOTHSKIMMER.COM (Signature) rffrl,Yj �;'w`''�t� Date: January 15,2024 02CO-EO06 EMERGENCY SPILLWAY DETAIL 1 � _ 1 I CONCENTRATE PLANT/CONVERSION PLANT LEVEL CONTROL SECTION X 1 CONVEYOR CONVEYOR ACCESS ROAD NO. 1 ! N.T.S. Stage Storage Curve 11 1 X / SB-10 L 1 _ 1 I Cp C 63.50 ft. _ IogillsillT83< 0. t 820.00Z gg22 ff1.00ft. Freeboard ,, H TID CH NO.4b (81 550)STRUCTURE J57.00 ft. PRINCIPLE SPILLWAY 72" SQUARE 818.0000NCRETE RISER W/TRASH RACK Channel Design (Non-Erodible) Channel Slope: 0.1000 EMER ENCY SPILLWA (817.88) / AND 63 FT OF 36 IN. CMP g'OUTLET PROTECTION � Mannin s n of Channel: 0.0175 y \� EST EL. 819.50 Channel Type: Trapezoidal, Equal Side Slopes NC-PC \ CR- � Dimensions: Left Side Slope 2.00:1 Discharge: 68.96 cfs it ♦ - F Right Side Slope 2.00:1 Depth of Flow: 0.62 feet X _ POROUS BAFFLES (TYP.) 816.00 Base Dimension: 57.00 Velocity: 1.92 fps PRINCIPALS ILLWAY(815.8 ) Uj Wetted Perimeter: 59.76 Channel Lining: Grouted Rock Rip Rap X X EMERGENCY SPILLWAY ` SKIMMER ��/ Area of Wetted Cross Section: 36.00 Freeboard: 1.00 feet m 4 17.88 • - 814.00 � LEVEL C NTROL SECTION EL. - 8 1 1 \ N EMERGENCY SPILLWAY T CLEA OUT LEVEL(8 3.24) CO >C - >k / - �� Channel Design (Non-Erodible) p 1 CHUTE SECTION �� EMERGENCY SPILLWAY DETAIL U TT T CHUTE SECTION Channel Type: Trapezoidal, Equal Side Slopes 812.00 _C\� FP ND Dimensions: Left Side Slope 2.00:1 pC EL. 10.0 / N.T.S. Right Side Slope 2.00:1 1 � 6a Base Dimension: 20.00 o C-A / 24.72 ft. 0.1 gg fft y SLOPE�RAIN moo/ 1 1 1.00ft. Freeboard N � Wetted Perimeter: 20.80 810.00 U) �► �o / 2 2 Area of Wetted Cross Section: 3.66 0.00 0.90 1.80 2.70 3.60 4.50 5.40 20.00 ft. - Q FLUM Channel Slope: 50.0000 Accumulative Storage(Acre-Ft) ' I / Manning's n of Channel: 0.0175 Discharge: 68.96 cfs Storage volume computations >k / �q T� Depth of Flow: 0.18 feet a M ro Velocity: 18.85 fps SB-10 2 I NORMAL POOL EL. 815.88 T w~� I �� Channel Lining: Grouted Rock Rip Rap ELEV. Width LENGTH AREA AVG. INTERVAL STORAGE ACC. STAGE 00 Freeboard: 1.00 feet I I / I /�� I (ft) (ft) (ft) (ac) AREA (ft) (ac-ft) STORAGE INTERVAL I 50%CLEAN OUT EL. 813.24 0 0 900 900 (ac) -(ac-ft) (ft) 810.00 N/A N/A 0.3838 - � 04003 1.00 0.3942 0.3942 1.00 811.00 N/A N/A 0.4169 0.4335 1.00 0.4275 0.8217 2.00 ■ T 812.00 N/A N/A 0.4501 I 0 813.00 N/A N/A 0.4840 0.4671 1.00 0.4609 1.2826 3.00 50% CLEAN OUT EL. 813.24 o.as82 o.2a 0.1189 1.4015 3.24 2 FT X 1 FT ANCHOR 813.24 N/A N/A 0.4925 850 850 814.00 N/A N/A 0.5188 0.5367 1.00 0.5302 2.3080 5.00 z z z z if NORMAL POOL EL. 815.88 TRENCH 0.5014 0.76 0.3763 1.7778 4.00 I r / Q25 HWD EL. 816.88 815.00 N/A N/A 0.5545 w w w w ISKIMMER 815.88 N/A N/A 0.5866 0.5706 0.88 0.5021 2.8101 5.88 2 N SEDIMENT BASIN LINER CREST 819.50 0.5727 0.12 0.0641 2.8742 6.00 0 0 0 0 DELINEATED OUTLET 0.6097 1.00 0.6030 3.4772 7.00 W W W WETLANDS N PROTECTION 817.00 N/A N/A 0.6283 816.00 N/A N/A 0.5910 - - - - - - - - - - - - - - 0.6424 0.88 0.5653 4.0425 7.88 w w w w SYSTEM LIMIT J�- 14 ft. M M M M \ \ / 817.88 N/A N/A 0.6565 0 0 0 0 \\\ Z1 818.00 N/A N/A 0.6603 0.6795 1.50 1.0159 4.1322 8.00 50 w w w w 1.0% 0.6795 1.50 1.0159 5.1322 9.50 � 800 BOTTOM EL. 810.00 800 819.50 N/A N/A 0.6987 2 w w w o I IO� CLASS B STONE SEDIMENT BASIN w w w w O 2 FT X 1 FT ANCHOR LINER SYSTEM N o I TRENCH o \ * T I1 I 750 750 �CUTOFF TRENCH N � N > I \ 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 Z N M SLOPE DRAIN EXISTING GROUND (ABUTMENTS) / PRINCIPLE SPILLWAY Cross Section A-A' I M \ \ 0 72" SQUARE CONCRETE RISER t � W/TRASH RACK AND 63 FT OF 36" CMP Scale: 1" = 50' FILL MATERIAL 2' MAXIMUM IF NOT CUT TO BEDROCK A l o � i o - - \ �? c o - - - - - - - I fl' � IL R N 900 900 SEDIMENT BASIN NO. 10 SPILLWAY DETAILOl 1 \ I I 1\ NORMAL POOL EL. 815.88 FLUME Outflow IDITCH NO. 26 / SEDIMENT BASIN Total Discharge: 79.92 cfs 50% CLEAN OUT EL. 813.24 LINER SYSTEM Water Surface Elevation: 816.88 ft 2' M }C Tailwater Elevation: 0.00 ft \ I I I N I 850 2 FT X 1 FT ANCHOR 850 Detention Base Elevation: 0.00 ft SUITABLE EARTHEN MATERIAL I I Q25 HWD EL. 816.88 TRENCH COMPACTED TO 95% OF STANDARD Outlet#1: Sediment Basin 10 Principle Spillway, Drop Pipe PROCTOR MAX. DRY DENSITY PLAN VIEW : SEDIMENT BASIN NO. 10 I I 2� Riser Top Elev: 815.88 ft WITHIN ±2% OPTIMUM MOISTURE SCALE: 1" = 50' CREST 819.50 t� - Riser Length: 72.00 in CUTOFF TRENCH DETAIL CONTENT 14 FT ACCESS Riser Width: 72.00 in 800 BOTTOM EL. 810.00 CREST EL. 819.50 800 Orifice Coefficient: 0.50 N.T.S. 0+00 0+50 1+00 1+50 2+00 2+50 Weir Coefficient: 3.33 Culvert Length: 63.00 ft 2 FT X 1 FT ANCHOR Cross Section B-B' Culvert Diameter: 36.00 in TRENCH Culvert Invert In: 811.00 ft Scale: 1" = 50' Culvert Invert Out:: 810.35 ft z o Skimmer Design -Sediment Basin SB-10 Culvert Friction Coefficient: 0.02 0 0 RISER BUOYANCY CALCULATION _ Desired Skimmer Drawdown Time 3 days Culvert Entrance Loss Coefficient: 0.90 Y a N cn a o J Z :2 \ (n Desired Skimmer Drawdown Rate 20,109 cf/day Demonstrate adequate stability by showing the downward force is a minimum of 1.25 w a :200 a m Skimmer Size 4 in times the upward force. d U) z Head on Orifice 0.333 ft Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) Z z o o U U LJ J 7 Z Calculated Orifice Diameter 2.242 in 2 FT X 1 FT ANCHOR TRENCH Actual Orifice Diameter(1/4 inch increments) 2.75 in RISER DETAILS 14 ft. 72" Square Concrete Riser o o o N a Actual Skimmer Drawdown Time 3.15 days TRASH RACK Height= Say 6' SKIMMER 1'FREEBOARD EL. 819.50 Weight= 15,220 Ib Required Volume 31,770 cf 1100❑❑❑00❑❑❑❑❑❑❑❑0110❑❑❑❑0 + EMERGENCY SPILLWAY DEPTH MERGENCY SPILLWAY EL.817.88 Where: NORMAL POOL EL. 815.88 o❑❑❑❑aa❑❑❑❑ao❑❑❑❑a 1'FREEBOARD MIN. 7 1-1I __F_ 2 2 Riser Weight = 15,220 Ib EXISTING GRADE i E i 1 F 1 Weight of Concrete Base = (Length x Width x Depth)x Unit Weight of Concrete WATER ENTRY UNIT I CONCRETE I Q WITH TRASH SCREEN GENERAL NOTES: 50% CLEANOUT EL. 813.24 I RISER I . . a _ V 1 PIPE. ROPER DESIGN MUST BE COMPLETED TO MINIMIZE PIPING AROUND DISCHARGE 5 88' \ Weight of Concrete Base = (7 ft x 7 ft x 0.5 ft) x 150 Ib/ft - 3,675 Ib Z Z J 2. PROPER ORIFICE OPENING MUST BE SELECTED TO ENSURE POND DRAINS IN �\ \ \ \ \ \ \ \ \ \ \ \� \ \ \ \\ J CORRECT AMOUNT OF TIME. MODIFICATIONS MAY BE REQUIRED IF FIELD 4'X 4'X V CLASS B STONE I _____ _ I \ \ \\ \\ \\ \ \\\ \ \ \ \ \ \ \ ------- \ \ \ � � � � � � �� Structure Weight = 15,220 Ib + 3,675 Ib = 18,895 Ib '^ O 000000000 CONDITIONS 3. EMBANKMENT JMUSTNBEACOMPACTED TO DESIGN SPECIFICATIONS. 1' d• e 36' DIA BARREL CMP V+ O LU � � a 4. EMERGENCY SPILLWAY MUST BE CORRECTLY SIZED AND EROSION PROTECTION I _�_a___a__I \ \ \ \ \ \� \ \\�\\ \ \ \ Buoyancy = Displacement Volume of Riser x 62.4 Ib/ft3 ORIFICE OPENING INSIDE THE INSTALLED. 0 ORIZONTAL TUBE WITH A 5. EROSION PROTECTION MUST BE INSTALLED ALONG THE EMBANKMENT AND AT THE • •e • " d _ CONSTANT HYDRAULIC HEAD DISCHARGE END OF THE PIPE. 6. INSPECT SYSTEM REGULARLY TO ENSURE IT IS FUNCTIONING IN A CORRECT BOTTOM OF POND EL. 810.00 d • d •° • •' . Buoyancy = 216 ft'x 62.4 li = 13,478.4 Ib J Q W MANNER. . d a 7. EIGHT SIZES OF SKIMMERS ARE AVAILABLE, REFER TO THE FLOW SHEET, CUT d• < • d • O Z SHEET, AND INSTRUCTIONS ON WEB SITE FOR EACH SIZE. STABILIZED OUTLET Downward Force (structure weight) > 1.25 x Upward Force (buoyancy) Z LL SCHEDULE 40 PVC PIPE ARTHEN EMBANKMENT SEDIMENT BASIN ANTI-FLOTATION BASE IF APPLICABLE CUT OFF TRENCH (BARREL OR ARM) MAXIMUM HEIGHT OF FLOAT WHEN NO LINER SYSTEM ELEVATION VIEW ( ) 18,895 Ib > 13,478.4 Ib x 1.25 V O (n MERGENCY SPILLWAY OTHER STORM WATER DISCHARGE OPENINGS EXIST N.T.S. 18,895 Ib > 16,848 Ib Z Q a LEXIBLE HOSE (MAJOR STORM EVENT) ANTI-FLOTATION RISER FILL FLOAT (IF APPLICABLE) NOTES 5 m Q INVERT OF LOWEST STORM 1. Portland cement concrete (type II recommended)for the inlet base shall have a minimum compressive ~ -III-11 GRATE WATER DISCHARGE OPENING PIPE VENT 72" SQUARE CONCRETE RISER ANTI-FLOTATION BASE (IF APPLICABLE) strength of 4,000 psi. = Z Z Q NCI±INN (MINOR STORM EVENT) =11 LU LOAT 2. Where corrugated aluminum or aluminized steel pipe is used, all areas where the pipe is to be in contact with TOP VIEW 11 d FLEXIBLE HOSE MUST BE , d , concrete shall be painted with a black bituminous enamel paint. J O SECURELY FASTENED TO • g d • LU �VC VENT PIPE l ; STORM WATER ; THE WATER QUALITY e 3. Riser to be constructed according to the Riser Details. V l DISCHARGE DISCHARGE OPENING • ` ' • , • d 4. Sediment Basin Liner System to be installed per manufacture specifications utilizing batten strip at Z Lu OPENING d concrete riser and pipe boot for culvert. O O Cl) Z OUTLET PIPE - r a A. 5. Cushion geotextile to be installed at locations where riprap is to be placed above the liner system d • • (emergency spillway, slope pipe/culvert outlets, etc.). 0 J LEXIBLE HOSE 6. Skimmer Sizes and Orifice Diameters are calculated based on the NCDEQ Design Methodology and will be L = 1.4 X DEPTH \� \\ g 9Y LU Q 0- TO THE OVERFLOW reviewed and approved by the Engineer once a Skimmer supplier/manufacturer has been chosen. /-A MINIMUM LENGTH APPLIES 6'-0" T-T 1� 10 WATER ENTRY UNIT ; , SCHEDULE 40 PVC PIPE . �\ \ \ ARM) 'j1111i1+ ---------I- _ _ _ _ _ _ _ _ _ _ -1 ( d< •• I hereby certify that this document was % CA '' BARREL OR ►►, _ _ __ prepared by me or under my direct personal END VIEW SIDE VIEW MAINTAIN DEPRESSION TO - - - a • (NO SCALE) MINIMIZE CHANCE OF • d supervision and is correct to the best of my o•E:Ssr ��. BARREL CMP SKIMMER BECOMING STUCK d " • d a • • • •,•' Q•• DRAWN BY T. R. EVANS 10/10 knowledge and belief and that I am a duly _ r Q� SEAL d d licensed Professional Engineer under the 1. 048820 SHEET NUMBER FAIRCLOTH SKIMMER° DISCHARGE SYSTEM WITH OUTLET W FAIRCLOTH & SON INC. • ` A. a WWW.FAIRCLOTHSKIMMER.COM • •a . d STRUCTURE TELEPHONE:(: ()19) -12-1244 . • ��_•, 'y�`Sll �� •• .: .. laws o the toe h rolina. FAR: 9FA CLOTHSss (Signature) `'►.► l+j/ EMAIL: WARREN®FAIRCLOTHSKIMMER.COM j ' •••'• PLAN VIEW Date: January 15,2024 f,jr,jj,l 02CO-DO05 N.T.S.