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Home My WebLink AboutRoxboro EAB - CBE - Appendix D_20200107Wood Environment & Infrastructure Solutions, Inc. Duke Energy —Roxboro Plant wood. EAB Coal Combustion Residuals Surface Impoundment Closure Plan (Excavation) APPENDIX D: CLOSURE PLAN DRAWINGS 2 3 4 5 6 7 8 ROX C999.001.001 REV.0 DUKE ENERGY A ROXBORO STEAM ELECTRIC PLANT A COAL COMBUSTION RESIDUALS SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS EAST ASH BASIN CLOSURE BY EXCAVATION BPERSON COUNTY, NORTH CAROLINA B ASH BASIN DAM STATE ID: PERSO-033, NPDES PERMIT #: NC0003425 IDECEMBER 18, 2019 __c_ Ringgold ROXBORO STEAM ELECTRIC PLANT Sheet Number Sheet Title 360 ROXBORO STEAM ELECTRIC LAW ROX_C999.001.001 COVER SHEET - :v 0 ��N_IA ROX C999.001.002 GENERAL NOTESL. M1aAon NORTH CAROLINA - N X ISO H BASIN MAIN D rovidznoz ROX C999.001.003 OVERALL SITE EXISTING CONDITIONS - AERIAL " I n l — IHEATED WATERI - ROX_C999.001.004 EXISTING CONDITIONS PLAN RESE. •, . ' .,'; C� I a I T ROX_C999.001.005 SUBSURFACE EXPLORATION LOCATION PLAN N ' : ' ° ROX C999.001.006 ESTIMATED BOTTOM OF ASH CONTOUR MAP ,. O Roxboro ROX_C999.001.007 DEMOLITION PLAN C) �' -- �`" �� ROX C999.001.008 FINAL ASH GRADES PLAN 1 CONTACT INFORMATION Z� . • ' . • O O _ OWNER: DUKE ENERGY PROGRESS, LLC I ROX_C999.001.009 FINAL SURFACE WATER MANAGEMENT PLAN Ln , ADDRESS: 401 SOUTH WILMINGTON ST. ROX C999.001.010 CONCEPTUAL DMM WALL PROFILES """r RALEIGH, NC 27601 ,o ff / II ROX C999.001.011 CONCEPTUAL DMM WALL CROSS SECTIONS` CONTACT: RANDY HART _ �� ROX C999.001.012 FINAL SURFACE WATER MANAGEMENT PROFILE =,,.,, r PHONE: (980)373-5630 m ROX C999.001.013 SCHEMATIC LANDFILL EXPANSION PLAN EMAIL: RANDY.HART@DUKE-ENERGY.COM o E _ ROX_C999.001.014 SCHEMATIC LANDFILL EXPANSION CROSS SECTION SITE LOCATION MAP - 1„ - 5 MILES SITE VICINITY MAP - 1" = 2000' ENGINEERING FIRM: wood. LONG:-79074992VV MAP SOURCE: ESRI WORLD TOPOGRAPHIC BASEMAP MAP SOURCE: ESRI WORLD TOPOGRAPHIC BASEMAP ADDRESS: 4021 STIRRUP CREEK DRIVE DURHAM, NC 27703 ENGINEER OF RECORD: CHRISTOPHER KEENAN PHONE: (919) 381-9904 EMAIL: CHRISTOPHER.KEENAN@WOODPLC.COM TITLE CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS wood EAST ASH BASIN CLOSURE BY EXCAVATION F ROXBORO STEAM ELECTRIC PLANT F Environment & Infrastructure Solutions 4021 STIRRUP CREEK DRIVE, SUITE 100 PERSON COUNTY, NORTH CAROLINA DURHAM NC 27703 TEL: (919) 381-9900 COVER SHEET FAX: (919) 381-9901 FOR LICENSURE: NC ENG: F-1253 ISSUED FOR REVIEW NC GEOLOGY: C-247 SEAL SCALE: AS SHOWN DES: BBC DFTR rft� DUKE DWG TYPE: DWG : BBC �� JOB NO: 7812190186 CHKD: TM NOT FOR DATE: 12/18/2019 ENGR: CK CONSTRUCTION FILENAME: ROX_C901.039.001B.dwg APPD: CK DWG SIZE DRAWING NO. REVISION ANSID ROX C999.001.001 0 0 12/18/2019 7812190186 DESIGN PLAN BBC BBC TM CK CK ISSUED FOR REVIEW 22"x34" REV DATE JOB NO. PROJECT TYPE DES DFTR CHKD ENGR APPD DESCRIPTION TENTHS 10 20 30 4 5 6 7 8 9 10 INCHES 1 2 3 Nlotted by: Moore, lien 5neet Set:Noxboro Last Asti basin Ulosure Fllan Layout:GUVLN SHLLI Uecember 1/, 2Uly U:z:Uy:-Ibpm U:\UUKe Lnergy\Roxboro\_/b121yU-Ibb—LAb Ulosure by Nemoval — hybrid \rlansneets\Issued Tor Nevlew\Nev. U\NUX_U'JU1.U.9y.UUlbi.dwg oil 3 0 5 6 7 8 I ROX C999.001.002 REV. 0 F REFERENCES: 1. APPROXIMATE LIMITS OF WASTE PRESENTED HEREIN WERE PREPARED BY SYNTERRA FOR DUKE ENERGY. 2. APPROXIMATE BOTTOM OF ASH CONTOURS TAKEN FROM AMEC FOSTER WHEELER, WASTE STRATEGY ANALYSIS, ROXBORO STEAM STATION, MARCH 25, 2015. 3. TOPOGRAPHY IN EXISTING INDUSTRIAL LANDFILL AREA FROM MAY 15, 2017 AERIAL SURVEY BY STEWART. OTHER TOPOGRAPHY FROM APRIL 16, 2014 AERIAL SURVEY BY WSP. 4. PRE -DECANTING MODELED GROUNDWATER SURFACE REPRESENTS SIMULATED STEADY-STATE GROUNDWATER HYDRAULIC HEADS IN THE TRANSITION ZONE OR SAPROLITE FROM THE 2019 SYNTERRA GROUNDWATER MODEL. THIS FLOW MODEL WAS CALIBRATED TO TIME AVERAGED HYDRAULIC HEADS MEASURED IN MONITORING WELLS PRIOR TO THE START OF DECANTING. 5. THE WATERS OF THE US HAVE NOT BEEN APPROVED BY THE US ARMY CORPS OF ENGINEERS AT THE TIME OF THE MAP CREATION. THIS MAP IS A PRELIMINARY JURISDICTIONAL DETERMINATION ONLY. THE PRELIMINARY WETLANDS AND STREAM BOUNDARIES WERE OBTAINED BY AMEC FOSTER WHEELER ENVIRONMENT & INFRASTRUCTURE, INC. NATURAL RESOURCE TECHNICAL REPORT FOR ROXBORO STEAM ELECTRIC PLAN DATED JUNE 2015. SURFACE WATER MANAGEMENT NOTES: 1. THE CLOSURE BY EXCAVATION AREA WILL BE GRADED TO DRAIN THROUGH THE 10-FOOT DIAMETER CULVERT UNDER DUNNAWAY ROAD INTO THE WEST ASH BASIN (WAB). 2. THE CONTRIBUTION OF SURFACE WATER FLOW FROM THE DRAINAGE AREA UPGRADIENT FROM THE EAB IS CONSIDERED IN THE POST -CLOSURE STORM WATER DESIGN ANALYSIS. 3. DURING CLOSURE OF THE EAB, SURFACE WATER FLOW THAT HAS BEEN IN CONTACT WITH ASH WILL BE DIRECTED THROUGH THE CULVERT INTO THE WAB FOR TREATMENT PURPOSES. 4. AFTER COMPLETION OF EAB REMOVAL VERIFICATION, ALL EAB SURFACE WATER PASSING THROUGH THE CULVERT WILL BE CONSIDERED AS NON -CONTACT WATER AND WILL NOT REQUIRE FURTHER TREATMENT. THE NON -CONTACT EAB SURFACE WATER PASSING THROUGH THE CULVERT WILL BE TEMPORARILY DISCHARGED INTO THE HEATED WATER DISCHARGE POND. 5. AFTER COMPLETION OF WAB REMOVAL VERIFICATION, THE NON -CONTACT EAB SURFACE WATER PASSING THROUGH THE CULVERT CAN BE DISCHARGED INTO THE WAB. WSP SURVEY GENERAL NOTES: 1. BASIS OF BEARINGS: NC GRID NAD83/2011. 2. ELEVATIONS ARE BASED ON NAVD88. DAM DECOMMISSIONING NOTES: IT IS ANTICIPATED THAT THE EAST ASH BASIN (EAB) MAIN DAM WILL BE DECOMMISSIONED UNDER A SEPARATE PERMITTING PROCESS. wood. Environment & Infrastructure Solutions 4021 STIRRUP CREEK DRIVE, SUITE 100 DURHAM NC 27703 TEL: (919) 381-9900 FAX: (919) 381-9901 LICENSURE: NC ENG: F-1253 NC GEOLOGY: C-247 SEAL NOT FOR CONSTRUCTION TITLE CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS EAST ASH BASIN CLOSURE BY EXCAVATION ROXBORO STEAM ELECTRIC PLANT PERSON COUNTY, NORTH CAROLINA GENERAL NOTES IT90 ISSUED FOR REVIEW eDWG DUKE N F RGY ® SCALE: AS SHOWN DES: BBC TYPE: DWG DFTR: BBC JOB NO: 7812190186 CHKD: TM DATE: 12/18/2019 ENGR: CK FILENAME: GENERAL NOTES.dwg APPD: CK DWG SIZE DRAWING NO. i REVISION 0 N O X J co co 0 0 N F INCHES 1 2 3 ITENTHS 10 20 30 N 5 0 12/18/2019 7812190186 REV DATE JOB NO. DESIGN PLAN PROJECT TYPE 6 BBC BBC I TM I CK CK DES DFTR I CHKD ENGR APPD Plotted By: Moore, Ben Sheet Set: Roxboro East Ash Basin Closure Plan Layout: GENERAL NOTES December 17, 2019 02: 09: 23pm 0: Duke Energy\Roxboro\ 7812190186 EAR Closure By Removal — Hybrid\Plansheets\lssued for Review\Rev. O\GENERAL NOTES.dwg 7 ISSUED FOR REVIEW DESCRIPTION ANSI 22"x34" ROX C999.001.002 0 9 10 Plotted By: Moore, Ben Sheet Set: Roxboro East Ash Basin Closure Plan Layout: OVERALL SITE EXISTING CONDITIONS — AERIAL December 17, 2019 02: 09: 50pm Q:\Duke Energy\Roxboro\7812190186EAB Closure By Removcl — Hybrid\Plansheets\Issued for Review\Rev. 0\OVERALL SITE EXISTING CONDITIONS — AERIAL.dwg 2 3 4 5 6 7 $ ROX C999.001.004 REV. o / _ l�/ / _ / l �� - // %�/ / J�,1 °� � i��,-- �ii��\ ) ( S\_-_L 1 \ �- \/(1 `�, 1� 1\\\ \( 1 �_ - - C I -- / I� / // // / / - \ l�� / _ _ -\\\ c_ \ r �� I1r 1��\J \ �\� l / //////� _�/i/� - _ ____ /// /,/ / - ��- --\ /9/� _____ _- - / /i�/ - ��/iJ // /� ��/ _- \\ %��- �/ \1 ( \ s_.._-_ \\\\ � l l � c /// ( \�\ \� JJ\1111/ /)� // // /// / ___ --// ` / - \ --- --�✓ / / ----- 20�20 l I /i�� / / �� / 1 �\ \ u / \ \\ \\ 3\ / / // //I J I /) / -/ %// / �/ \`410 �(a\I J t/� / ��i// L /,iii ^\�� \��= i�� , - ---° ��\ \�\ /� //// / 1//// \ J \ (\l / ' J _J �= � /Or//r�J� � I/ / i//ter / /J v;��%,,. � �! �=J=� -�'� �—/°oo�� _ � \—��\�\\�\ S � �-,\ `' 1// f/� ��%i \\� \Z \\\\� 1 V/ // / J/ \v\ /� v vvvv \\ ) o �v (/�///ii 1 A� V� \ /( / / —� / /l / / l / �I / i — - r 0 �_ �= c ro �� i \ \\ o o / I I I / // I I \\\ 11J\ \ �1 I / / �_ - - -v _ _ =// is"� II 3H0 // �3 / r / I //ice/i� - MAINTENANCE V �� j I� r' _ � - _ _ = \\\\\ \\\\ \ d °°° �o J �/% // �l/l / 11�\ /� J I - �t�1 \\�\\\\1�l ��rJ III , / / ( J \/ 11/I� �� - -_=— // I 9/ / /A�r� a !J \ /L./= = — — = — = �\ \\\ \\\\ tea, !% //J�ll \\\\\ �� (1� \ �ll��`� I I I / I- 1 I \ f_ - [ - - __�� 1/l 1/ 3 - , \ \\\\ ,BUILDING \ / /� __-=_ =_—=__--_--\\�\\ \ \� �� _ J \\\�//i \~� \\ \\\11 I I I / // I I 1 _ _ _ ii ( / - v v \ / 0 1 /II _ __ _ A _ - - _- - _ _ - _ _ A\ \ _ \V�\ / / v 1 \ > l( \ I I SUBSTATION �_ v v v \ vv i r V \\ �1 —�//� a i/ �� A —� i'�— �L�� /\)�\�� \\\�\�A� 1\\ �\ N \ I __—= — �\ �_ �� ll ��R6 \ �� l� \ V � \ �� / I / \ Z� �1 — \ E / \ C \ \ \ / / 11 I _� �,=-- � L�,� /% - v a -'_ \vvv \\ V�/ /- v �-_� v ) - A\ \VAh� \\ s \ I I I //� ' / �/ \ \ \ ��r��/`� �i�� _� _=_ \\ \\\ \ �\ / �f % \ \\ <<o� p @ \\ \\ III I /i% TRUCK WASH, TRUCK / it -� o \\\�\ \\ tit o J �/� _ -_ \ - -- - _ \\ \ \\ \ \ \�_ J� � �i L \ \\ \�\ <ilc\ \\ \ \\\ oHE //�1 III II /////, / , _\\\\\ o \\ ) // ; 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APPROXIMATE LIMITS OF WASTE PRESENTED HEREIN WERE \ \ Z - _ - \ \ l I v /// % //i// J ///�/� �'�/��\ l / \\\\ \ \\ / //// / / / I 1 = �� / r \\ 1 I \� \ / J� \\ \ 11 \ \ \\\ - _- -- - - \ 1111I I \ \\�\ L-J/ /iii// /� PREPARED BY SYNTERRA FOR DUKE ENERGY. c \ - /i - // //\i\ I \ I I I / / / / // // ( !�/%�i�=�\\ /// l (/ / �\ \\ \\ \ 1 \ \\ \ / / / / / L /i��/ I � 11 \ I 1 ((o \ _ - - _ / / / ¢ ( l \\ \ \) /l`= i / %/�/�ii \\ - _ - /�� \ �(I ( ( I / ! ` /// / \\\\ \\ /// / L =// % \)II l\��\ �// //^� \ \I \ `1 I` \\ ` _ __ __ �/ LINED PORTION / \\\\ \\ \11 ///I l� - J�//�////i 2. TOPOGRAPHY IN EXISTING INDUSTRIAL LANDFILL AREA FROM MAY o 1 \� _ ► / / /i ,a /�/ /J \ \ I I I 1 \ L ` (\\ ( �// / / _ \� J/ I / / \ \\\ \ \ \\ I ((/ /// 1 — — — — — %� 1 Ill\\\� �� / /� \\\ \ ( �� ` � > t f — \ \ �\ I \ — //// i \�\ _ �1 / ,� _/ /�/ ) \ \ \ ) 11A=�� , \ +w ///� j - J / � \ 1 \J \ ll�� \\a�� o// / ( \J�� = =�/j 1 \\\\ \ / // \\\\ \\ \ / L \ \ - - � - / ( // OF INDUSTRIAL LANDFILL / ��J 1 I)11 III \�\� _ �/l /,/ � / )/ 15, 2017 AERIAL SURVEY BY STEWART. OTHER TOPOGRAPHY \��- / / �// // / \ ) \) 1 I _ ��\ \\\\\\(/i-/l I / 1 / -�� \ \\ ll \ \\ \\ = __ _ (l\\ \\- /� /// \ \�� _ r I r L i" l i \ �¢ / 1 I I I \ ��\�/ / // / / FROM APRIL 16, 2014 AERIAL SURVEY BY WSP. E �� _ _ ��1� �� \ ��\ I(I I I ��\' \ Il //// or \ _/ \\\__ -- /,� \\�\ �/7\\\\\�\\�\�` ((� �� // /// �, IIII/��//// / \ - _ �( \ II III /\\ --- / /// / / �\\11\III/ � �_ 1 \\ 1) l�/\, �� / \�� - ! 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THE WATERS OF THE US HAVE NOT BEEN APPROVED BY THE US / o', / , / I I � 11 \1$ l / // \\ \ \\\�\� \� _\\ \\ \ \ S3\ �� J �C� 1 1 //, / - , ��" \\\\\ \✓//� A \�\��/ \111(I / ARMY CORPS OF ENGINEERS AT THE TIME OF THE MAP CREATION. �� _ / / / - _�\\\�l III I ///�\ 1 1 _ \ \\\�II�<<��8 - 1�// \ �.\\ \ \\\ - \ \ \ _ \_ , �o / I 1 0 - ' �\ /� \ I / \\ \ \\ \\ 1- - / 1 ( __- III / ��I 4 0 \\\ \�/ .. \\\\��1i\ \ \\ �_-�� - II �I \ \\\\/ \ -Z��/ 1 / J / /// / / ( / 1 r \ I I / I 1\\ / \90, \ /\\ \ \ \\\ \ \\\ \� \�\\ �\ \ - - - _ /// \ J I l \ \\ THIS MAP IS A PRELIMINARY JURISDICTIONAL DETERMINATION / / /�j// / /� ,/ / \ �- \/�//�// III/�/j j�� >\\I / \( )<<s°° \�\ 1\\ J o �� \��_ -�\�\ \ \\\ \\\\\l �� =-__- //��ll / l 1 - \\\\ II � `/�- \ / // j/ /� / / / WEST ASH BASIN \ 11 > j /�/ / l/l / ///� \ (/ / \��\ \°\\\ \\\$)J \b� _ _ =�\ \� \ \\ \\�520_� i _ / //III \ \ \ \ \ _ - \\ ONLY. THE PRELIMINARY WETLANDS AND STREAMS BOUNDARIES ///�// /!i/ / \ / /// // / // // - \\ _ // 11 J= EAST ASH BASIN - \\\\ \ / - / \ \ / / \ p \ J \\\\ 1\\ \\\� _ - _ -� /� 1 / / / \ - - \ \ I \ / �_ / - WERE OBTAINED FROM AMEC FOSTER WHEELER ENVIRONMENTAL / /// APPROXIMATE LIMIT / V / �/ �/ //// v - I \ \ \ 0A l))) I t vvv v - /� _ III v _ - - _ - _- \J ( \ v J ) / �% J // / l ( III/ ///(//� /!/,Z ,z— �� \ % \ \ < l � ' J _ww -,# _ / APPROXIMATE LIMIT \ \\ \ �\ / J / I \ \ \ ' \ \ I / ( / / // � ( (_ \ OF WASTE I 1 I �,_/� / \ - \ \ \\Il I1 I\ / �\�, �� _ _ - - �- _ / \ \ \\\ \� 510� �/i = J l l I _ - \ J l �j - - & INFRASTRUCTURE, INC. 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APPROXIMATE LIMITS OF WASTE PRESENTED HEREIN WERE =_—� _� / / / � / / / \I �� _� \\1� 11111%/ ^\� 1111111 \ � ---- \\ �ll�l�/(I (_( I � ��`' = �'�" � ��\� �\\ � �� / \ \\\\ \\ ��`� �� t � _ :: \ l (� 1a) 1 ) I I � ( I I I /i \ / � �-_ - / ®/ /�,- -=�\\\IIII (� 1 \1\(� I \\� �// \ \\�\ v ��_�r��` I /11 0 \\\\\IV/� \ \Jl//, \ / _ I 1 \ \ II ((� 11\ / / / \\ \ \\ _ \S3 - J /� �\ �� / ( PREPARED BY SYNTERRA FOR DUKE ENERGY. �� / / ) ( \I Ill I� //��I \� / \ \t. ► \�_ \ \ - I ////// I 1 -,\ o - \ ,\/�< \\ /// \\ II I / / /// / / , / // / ( /1 r \ I I // /j _ ` -I 1\\ � / ) ( \\\ \ / / �\\ -- — / \ I,, �� - � \\\ - � - - - I I // I �� \ \\�\ I 1 \ / \� 2. TOPOGRAPHY IN EXISTING INDUSTRIAL LANDFILL AREA FROM ///// \ ( \ \/�l/�// II //� �� \ o �� _ \ \\\\\ �\\\\mil 1 _�\----%��1 / 1 0 \ /�/ \ / / �/ / /; ) 1 ( l \\\ 1\\ L t- \� \ \ - - ` - - - 1 / ( _ \ \ I l _ \ MAY 15, 2017 AERIAL SURVEY BY STEWART. OTHER / �jj/ /� / / / WEST ASH BASIN \ II >//�//�/// /�/� �>\\ (� //-\ \ \ \\ \\\\ \\��1�� \b� �� - \\\ \�--;�\ \�\ \\\\�-520= -�/ - l 111 \ \ \ -- \\ / // // c� / // // // _ �� - / II \ lI \ / \ TOPOGRAPHY FROM APRIL 16, 2014 AERIAL SURVEY BY WSP. \ \\\� \\\ \\\\ - - - /� I / / / P-138 -P-_ \ I \ \ \ / �- / /� // // / / APPROXIMATE LIMIT / \\ // /%/ / /j/// - - / - - \ t \ \\ �\ ��\�\\\ \ - / �/ f l /// ,j/\�i -��70� - I ( / \ \ \ 11I l))) / - _ _ �--w9 1�� - - >\ -: \ \\ \ - _ - ��_ _ / // l I I III _ - - - !- \ \� ( \�\\ \ ) / - _ 3. LOGS FOR BORINGS ARE AVAILABLE FOR REVIEW IN THE EAST \ \ I / , ( // ( ( I \ WASTE I I I ��_ // , \ „ J � I I I111 / 7 %\4 �'t-�,- _ - _ \\\ \< � - =510' � / - / / / 1 I - - \ - l �/ - 1 I ( ( \ ` \ \ II (� �j� �/ S2o� -) - �\ \\\ \\ \\ \ IIIII 1 I / // �\��_�� /��/ _ �� - - - - EAST ASH BASIN \ -\ \ ` -I \ \ / % I / 1 I \ 1 \\ � _ _ �\ \ �\ // // - ^ \\ ASH BASIN GEOTECHNICAL DATA REPORT (WOOD, 2019) I� \ \ \ — \ 1 II III i - _ \ \ 111 II I//// //��\ _� // ,— \\\ IIII \; �\� �� / I \ \ \ \ — _�\ \\ \ \�— \ I II g \ \ \\ \\\\ \ \ _ (PER SEPARATE N I I /--- /�� - _ �: \ - J 1 ) I 1 (� - \ \\ / - - _ _ _ _ _ APPROXIMATE - -- � �\\\\� I / �\ \ \ \ - \ \ \ I \ - / / - \ \ INCLUDED AS APPENDIX B TO THE ACCOMPANYING CLOSURE \ ��-� - / Il\ - // �/ - - _� - II // / - ��' \\ , / /� / - - - - � \ \ \ i� - / J) \ � \ / / / / _ \\ \\ 1 PLAN NARRATIVE. \\�� \� -- - PERMIT SET) III / / - - - \ \ - � l l Il � \� 1 �/ _ \ �, /( �/ - -_ _ —_ __ __ =_ �\ LIMIT OF WASTE � ��_ �500� \ I I \\ � , , > 1 I I / _ \ \ vvv- \�� y �_ _ _ ��I II�1��A�� v A\ V�\\��/r//// — v V v 1 All // lJ///J/l�/Ill /II�II /�- � "v v I� ( _ _ A v v - / \\ �/ // // 1 / / - \ \\ \ \ \ l I - - _ = - o 1 ( \ \ \ 1 / \ \ 200 0 200 400 FT ��\\ �i /� 1\'\\\ \\�\�"\\ \\ / \\ %//// - \ IIII l/, / I I( ll l / \� \�\\\ \\\\ III - \\\/ _�_�\�`'�� ____\\�� \\ \ \ \ l /// / / / ((// / \\ \\\\ vvv /// - v vv v v v vvA- �/ / - v I I I I /� / y �� /// / / I // / / ,- �\ v \� V A I I \ - _ ,vvv �� v \v _ _ _ 500 �� A v v v -- _ ( I �/ / / / - ') \ - / / / - vV A \ �� %/ _ 1 (\ vv - v vvA \11,� v //�// I // / /� // / / / v\\\ \� 1A�VAV\V I<� v ' - V\ / vvv \v\ \ / /� /i// // / / 11sv \\ \ \ \ - - - - _ _ - _ � 1 ( / / / / / l \ \ SCALE: 1 -200 �A �� — / — \\ V A \ / / l / / /r -- j / — ��510 �� \ v -- v v v /I IC / v ) I ) I/)/�i/l 1/I 1�� %� I �l v VA \ \ \\ \\ \\ I r /�/ y V\� ( /-_-- w\ \ \ l \\( ( / v�v� / /;� \� A v� v �\1 A\\\\ s �� / / ��ll II /�--�vA�\\ VA\\\��AA\V A III i vA�\�/ - w\\\\ I(// �- -- 1 - I I A / / / / / �� / / / / / // V <v / \ TITLE v� vim/ //i�-�- \ \ v� 30� --/ l /// /i /�l // / -vvv \ V� �AV A \\�1 I A //� v� (/ ( �- =�� \V Az\ I V� / \v- �� / - v Av ( I I ( \\\\� J I I / / i�// /� /�i��//////� �// %/ / / / v v \\V\ \ Vv v II \ \\\ ( - vv v� f / 520 v \ \ / �/ �� \\\ I / �w�__ / _ �\ I / / ;w v vvv vv 1 \ \ �V I r v_ /i — —� v v J I / - - _ Avvv v v Q� / / / 0� v 1 ( CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS w-- -- _ >?) I I\1 �_ /�// ///„��//�//�_�_,- �ll 11 l --- v II A \vvv 1 1 / 111\ \ 1 --�/� � \ \ \ II (( / / /�/� /�'� �� / / //� / III A 1 A II 1 1 I / - =530�� v A \ / '/ / Q, �- (-_- _ \ 4 /// v / / / / / /� 1 \� I \ \ v _/ -\ v / / /i 1 (� ��_ = =% -�) 11 ) loll/// I v A / / //� / //i/ /i�__�- ___- VA I l l / vv\\ II I 1 \\ \vv _ v , \1 I �_ wvv v\v 11 �� I I I I 1♦�� • v II II l/ 1 I I I v I I r _ v l / l 1 EAST ASH BASIN CLOSURE BY EXCAVATION \ vv / �v v� I I v\vv ( 1 / �// / — v / I I J / — 1 II I �v / /�/�/ri/ _ = ,wvvv� I �II III I�/ll // �� P11\IIII II111 II��A\ \1\A vw\mow v� Iv %''� y wv yv IIIII 1� �Av�vvv �I I �I11 ��s / /// I ROXBORO STEAM ELECTRIC PLANT 1 ,� \ \ = � /j / _ _ _�-� 111101 ICI I11 I �\ \- /��/��/��//��,,_-= — �\\\ \\ II II I I /� I \ \ \ 1 \ \ \\ \\\\ \ \ \ I I I _ �� / �\ \a s I l I I I � 1 \\ /�/ (<// �/� �� _ /-� \\\� \\ \\'� //I I ,\( \\\ \\\ \� � /II 11 �� \\ �\ �I -) �\ \\ \\\\\ \ > > \ / �/ \\\\ \\\ IIIII / // - \\ �\\\\\(1 I ( ( // - - / / Environment &Infrastructure Solutions F \ \ / I \ ( ��/ _ _ \ �\ \ _ \ \ >) > \l 1 / _ _ \ II 1 — � \ \\\ \\ \ I 1 I I I // PERSON COUNTY NORTH CAROLINA ( — / 11 I I /� - _ / — \\S l I o\ r I \\ \ \\ 1 /�� - / — — � \ \ \ \ \ \ \ \\ \ \ l � \ \ \\ / / //�%/j % / / / / / \ \\ l I I i / / 4021 STIRRUP CREEK DRIVE, SUITE 100 \ / v- - / s\\� \III I I \ \\ \\l\ �� \ %/ - _- = ; - �\ \\\ \\ \ 11 \\ \\ \ � --\ I (� �� \ \��\\\ I // / /�// / �// \ \\\ \\/ //III/ 540- \\\\\�\\\� I) / / / DURHAM NC27703 \ 1 \(/ -/ //II /- \ o \\ I \ )JI / \\ \Q \\� \ Il \\\\� \� \\ \\ \ \ /� // /// / / \ \ \ /�// I I \\ �\ 'IIII I I I I / / \ \ \ / l/ lIl/ _ - \ �p \\ ( ) I I l I I I \� �� (/\ /� - = _ \\ \ \ \ \ \\ \ \\ ��\\ \\ �\ \\\\ \ \I I ( / / /// /�/ / // _ \ \ \\ / J/// / \\ \\\\ I I I / _// TEL: (919) 381-9900 SUBSURFACE EXPLORATION LOCATION PLAN 1 I I \ I / / \\\ \ \\ \\� \\ /�/ // — — — — — _ \\ \ \ \ \\ / \ \\ \ --I \ / / \ \ / / / P 102 .\\\ I I I I i — FAX: (919) 381-9901 \ I / l II ( // v�M v� 1 / / \ \ \\\\\\ �ll vvvv _ vvv \� A l l ll / / / / v Avg////// - vv vvv \ I I I \ \ ' \\ / / // / /— \ \ \\ ( \ I \ LICENSURE: FOR 1\ I ( \ IIIII( \ / / v v terv�� l(I 1 vv v VA yam'/�/i%---= vv vVA\A 1 ll�l\ ��//��v��I>lll)\ I ��yw(V(l-"vIII111 //// //// //// / / / vv vvv �-/ / �/ / -�v� \ 1 1 \I \ 1 I II I I \ \ \ \ \ III / = - -// \ \\ I I \ \ \ \ _ I / I v o zv A��f I I \ v� / I 1 I 1 - / / ��/ / v� )�l l v / / / v I / (\ \ \ 11 \\\\ I / / / 540 \`�\ \\\t �I � ( \ \ /// \ \ ) Il 111 11)1\ ///� �� --- / �� — \ \\ ((� (% \ I /l l I l /l // / / — — —\\ �\� i �/ / / \ \ \\\I \ ( \ \\ \\ \ \\ \ \ \ NCENG F-1253 ISSUED FOR REVIEW I ( \ A — I I V \ \ / � \ / I \ V A \\\� / A I l I I I / / / 1@� �\V I I / 1 / / / / / / / / / �\ A V VA \ \ I 1 � I NC GEOLOGY: C 247 ( \\ \\ \\\\\ I / \ \� / I / \�/ //��_� I II III II\\ / (( /// / // \-\\1\I IIII I / / //� II \ ( -\\ J//// �o/ \\\ \\ \�\\� I \ �\ \ \\\\\\\I I sEAL - - — \ \ Z - \ Z \ / \ \\�� \ I l � \ // I (/ /�/ % - \\I� 1 \\ \ I I / / / / / I J // / / �\ \ \�\ \ \ \ \ \ SCALE: AS SHOWN DES: BBC ( \\v I— - = v\ 11, \\ III I / Vf` U ( ( ) � / / / \ \ I I I I I I \ v / / I1 I //// // / /)// / v V A�\\\11 I I I I I I Il I l / I v\ v / v��/// / 5 / _ � w 1 \ \ V A V V ( r z,_ I�I I 1 \ \V� \ V A v/ / VA\ ( / I J/l I/1))I\I /)(// / / / // / A \ III ( I I \ v �/ / _ 1 l \\ \ _ _ DUKE DWG TYPE: DWG DFTR : BBC \\\��_ /� III I I I I o o J \ Ill l \\ \ \\\\ / // \ >> \ \ \ \\ ��=�1�111 111 , 11's� I // - OVA v //�- �lll�l /V A \ \\�V l ,,,IIIII, , (l I , \ V v v , / 14�(I� IIV \VV A \ V A\ �� /I/I1I1I II,\V 6� o � ( �-.� )\ v / - vv \�v-�I I I I I I/ �/ III %/ /// / v\V\\ \ \III �1 / / _ \ \ / / I ( 1 / l / /l1 I / \ \ \\ 1I \ \\ \ \\ I / / � - !2 �1�� z) 1 \ \\\ \ \ �/% ��///l/IIII II \ \ \ \ � � �( \ 1 -- i l� \ \\\ l 1 \ / I ( // / \ \\\ �l I \ \ \ \ a \ \\ \ -_%�� / I vv �/ 1 \ v --// _ I I I /// / / / / \\\ \\ V IIII \ V I v vvv A \ -,; / / //// I I \ > \� \ \ \ / l I lI / \ / I I I I I �- \ \ \� �11 `\\ \ \\\ 1 \ \ I / P-103 _ \\�\ ��\\�\ � \ \ \ \\ � NJ JOB NO: 7812190186 CHKD: TM /// /l� 1 VA ( r�s /»vv v v\� / / / 1/ // ( �I III 11 l \\\\ v A �A\V v� v\v�V A / I v / - )�///� \�VAvvw v �� / /�/// / " l/// 111 l \ Sao I �f yr �� / /// \ \ \ l _ / J / 1 \ \ \\ \\ \ \ J \ I 1 \ \ \ \ - \ ¢ c� <� \\ \� L \� \ \ \ \ \\ \ \ �� \ ® DATE: 12/18/2019 ENGR: CK //�/�/////// //III\- II �(� - ��// \�\ \\ / / /�//// ��_/ /(II III l \ \ \�\� \ \\\\ \\\� \ �\\ \ I ¢ \� \ �J / , I II�J\\ _ //„ / / //� I\\ \\\\ \ \\\ \\ \ \\ \ \��\ \\\ \ NOT FOR ♦ /�////// �i//// 1 1 .y2o %_ ill \ // \\�\ \ / //// I �I l I I \ ) 1 1 \� \�\\\ \\\� \� \ \ \ \\\\ \\\� \\ ��`\\\ I > > �) l \ / / ' // / \ I 1 \) \\ \ \ \ \ \ \ \ \ \ \ \ / \ FILENAME: SUBSURFACE EXPLORATION LOCATION PLAN.dwg /� �\ _ - \ \ / //� - - - \� 1 \III / //// /// //// �// l 1 \ i /%�i \ \� / / \ i / /� ii )/) l �<< < /; _ _ J / 1 \ \ — — I l ) l I \ ) \ \ \ / / �, // ,/// /, (\ // �\ \\\\ \— — (1 \ I \;� — /, /,/ / I \ \ \ _I I III \� \\ \\ \\ \\ \ \ \\ \\ \\ / // / / \ CONSTRUCTION APPD: CK //// / / �/( l /// �V �- /`�E' l /i//, � 'SF : \ / \ / // /I l\- I � \\\\\ \ \\\\ \\\ \ \� \\ \� / � �// / / //j/// / I / / //�i1 \ \ \ \ / I \ \�_ /i / / / / i i I � / \ \� ��l 1 \ Mbv �6BR �\ I I \ \\ \ \ \ \ , \ ¢ \ . , \\\ .\\, \\ /.� /i//i! _ - i DWG SIZE DRAWING NO. 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\ (\\> I �) / w , _ It I ♦ �� ♦ ( 1� ) A� \� / 1 A �� vA VA ,, A� �A y - ; �� _ /� \�\\\\ 1 EXISTING MINOR CONTOURS -7 I \ / �A — A \ � p 'i �49�; _ �\ // /- / � v A / \V ��\\\\\ bu /IIII I / \ \ \ 1 /`I - �\ �l \ \\II 1\I //--- ��X__,1\ ♦ lf// // / / /\\ ` \ \/\� 1 \ \\ / 1 \\\\\\\\\\\ II APPROXIMATE ASH BASIN LIMIT OF WASTE / /� �� \\ ♦ / / - \ \ \ \\\ \\ \ �� '^ I I I /� \ / i 1 \ / /.480 �� / l / / \ \ / �- \ \ \\ \\\ I a7 < J ` \ / / �\ /\ \ \I\� / — /�\� i�� I''//j^ I / II I r // / i /j i = _ \\ _ 1� \ ?�\\� \\ l / 1 (/ I v ( (/r�,� -_ —� jw�� Q� v y=__ �o �,-/�yJ�� II �11</�i / - III 1 11 / A I I `¢ - v C A \ \�) I �� '_ -�, // %, J11 i ° V\ //�� , �/ice - I ICI ((/ Y / / / /� - - � y v \\ \ \ III III 1/ UNLINED PORTION OF INDUSTRIAL LANDFILL D \ I�\� \ \ \ (\ -- �1111 / (/i�lllll� \ _�� s )//ii °900'%=�%'_ \ II ll l l (/ / �/\ 540 �� \ 1 0 1 l l (s - - \\ 29 \ �� / % III ((l ( I � o J �_-%\\ I l \ I I I I I / / ' - \ \\ \� 1 I O \ �I I it LINED PORTION OF INDUSTRIAL LANDFILL ��//\/j �J /� II I \ ��o v_ \ /�� _ - � �II / > 1111 �� A / w� v �� / // / /ice o f/ // - \ � I I / / \ IIII I \ \ � / \\\\ / /� ��- �\ III _-' j ��' o // / \ III < \ / \ � _ / (/�/l \\ - \ \\\ \ ��%�� %// 5 / // / - \ ^ /\\\ I / \ \ \\�II I III 11\1��111 1 I PERMITTED LCID LANDFILL LIMIT ,4 /„ - �\� VA\ /, � _ -/ V l ii` ,r,/,�/,, ��- v \\ y,�� ,,, , �, _ _ ��11��, ,11 I I / �/ / - \ I / �,1,/ ,I 111lll,ll ,111\� I------- 4t7 \ / 1� _ - v V A // � /� ( / / / /o / / = - I I I 1 I I / / / / / 1 I I � 11\ \\ 1 - - - �_ �" \\ \� // % / - i I PERMITTED LCID \ \ \ /// J�// / 1 I ///`�� l / �� , / / / /�% I )II III \�\\ 1 o v AV / / 1 \ 11 / / / �, , S l I 1 \ I / I / / A / / ,- - Il Ij l I W) II\ \ ////// / \� % J // \ \\\ // _ \ \l\\ LANDFILL LIMIT / /// // / / ( _- _ ) , / / /// I 1 Q ii 1)t° /� sv V A l( — —V ,—�/� '/� — V / I 1 / / / / / / / / / �� / p,,,l( (\�\ \ / I / / ////// //II II 1 \ , AREAA CLOSURE EVENT 1 LIMIT \ / �- \� I / 1 I I // / /// °o A \ v , - � / \ V / / ��\ (I (/ / I I I I l I � � � ��► I \ A 1 I I I / o I I I �� /A / AREA TO BE EXCAVATED 0) / l / \ I //� / // � � I a A v 1 I / / J 1 11V / /%/ I �/ I / I I I I \` �\= / /'/i �`/ ��vv lol(� _-yv� =i/i/ v Il l%ll/��i/ii/ \\\ V1 1 ( �V v v� ��II� I z/ ////)1 I ' / / / ` \ — — I I I / // ////// \ \\ \ \ \ ,,,\ ,\ �� \ — /�� 1� UNLINED PORTION / /i , / ////�/////= I/// EXISTING OVERHEAD ELECTRIC �/i / c — \ o — - 1 / ////� /i/ goo �o VA 1 VA VA VA VA � V , — // �� 11 r /^ _ - / o / / \ // /, off E / / �y I \ / / - �� - /�,5 / i /ii //i/ / / r/ /// / A 1 \ DUNNAWAY ROAD �/ / //// �/ �// 440 450 4sp Ao o A \ \V ��\�VA�� \� _ y A\\\� _ �/ i / v - - / / �/ / / - // //, ( - J ' // / / \ \ 1 )�f= / j } l _ OF INDUSTRIAL LANDFILL // o / / // ` I- �, - l J �j�- v /�/ //� /,�i cal I o /i'�/ / so �, \\�� \ - -\ \ \ _ \� - // �� \\ // /� - / ��, �// 5 / /�j//�� ESTIMATED BOTTOM OF ASH CONTOURS // / I - \ / / / / / // /, % � A \ vv \ V //i I �� ) / A � / //� / - - _ � l / / //,,/oi/ i i�� i / / / h �� PROJECT NOTES: / ( � - \ \ 1 / // � - ��'% o \ \ �� / / / / I 1 \ ��5� � - - 1 I \\ ///dram- \\ / / 11 Irll 11 ( /� �% \--- -- �-\\\ \ I / // / �/_ / �\ \ / // /I I \ \ %' ,\=\1 l _ / \\\ / > ��<< 111 I I (I\ \` �/ / 501, %- �\ \ \ - \ \ \ \1 ( I v / \///�j/ /;\\ �l/l / \ o \ \ / / _ _ ,�,o o ((\� //� \�� ) ( o \ \\ / t _ . , i� / ¢ I 1 1 \ / //, �/ c,'.o!�/�% !� �� 1. BOTTOM OF ASH CONTOURS ARE BASED ON HISTORIC \ ` \a \ / / \ I l �\ >/ /�/ 1 - �� `\ice\��\I \ \ I I ///I(/�// \/////� r-; �\ //If /,,�\ \��8° �/ ///� _ ��o�\)Ill \//\ 1\ �� -� \\\ \(\(��-�/ �iii - - �b I / / / - - ��,, ^1 \ / \\ 1 1 LINED PORTION / \\�� /i ti ii 1 TOPOGRAPHY AND ARE FROM A DIFFERENT SOURCE THAN o _�" / -� /JI \ II I I I \\ \ /, %-\�,J, /, \off\�� //(\� f�� _ _-= -;� �(\\\��_�/ ( __�_ �� ( _ \ \\\\��Iitl -�/ °�%_-\\ ) I \ \ I /I I \\� \� �\ \\ / / �\ J �� ` _ _ _ �� I A \\ \ /�\\\ \\\\�l o\ - = T��- \ \ > �� OF INDUSTRIAL LANDFILL / �� I �_ ( /o I THE LIMIT OF WASTE LINE; THEREFORE, THEIR EXTENTS \�►\\ - �l I // /� � / /�'// I \ \ I I \�= / �% i ; \ I �) \\ \ - _ - \ \ \\ \\�� 1 l > / l l/ / i i 1 \ \I I 1 \ —_ _ _ II �/ ��,�- / �� /�� \ 1 ��\\\\\\$'� / /l/I I �1(=� �!\� 1� / ��\_ ===_= ��I 9° \��\/i/\\\\�,��.�, l �� 1 \ / \�,¢ /IIII II11�%�_�J�/// a� ////// E -%—_—= / /� (�� \\\\\II %�\� III I(1 U — \ soo II//l//I/ \\\ _ ��-- — + \, - - i ) �— i /,—`, a �/� //o DIFFER. i /� \I \ 111 / I / -� - - % - - - ii - \\� �\ -'EAST ASH BASIN = - - \~ -� _ _ Jam`-� \ ll �� 1 i \ 11/ p� I (I// �\\ ll/// \ // 1-7- _ / Sa/ �� - - _�A 1A)II IIII II�1 \\ ��s vVA�(l�///\� vvv\� - I I �l1 V �I\I�///�w�wv�//� h I /�/ -- // \ \ �\ ((� - - - \\ - \� I / / �, I \1\ /-- \\ / I( / \l� I / - 1 $ \ p �� -- / - �� \� //� / \ \ I ( / REFERENCES: // / �� / �� --- �� IIII I I \ `�-� o I ��\\ \ 48 APPROXIMATE LIMIT,_ ��\ -- �- �L=�1- // / �, �\ O-� \\\\\�/� \1`�� h iJ \i// / / \ ( /1 /Ill//////��, II \ _� I (\�� \\ _ ��\� II �o�� / --�, - ( \ )) I \_V \ 4�0 v - - OF WASTE / I 1 � _ - _ \ �� \\ \ ////� , - / / /�/wv 1 - �� 1 v v II _ __� vvy \ o a °s 1 I l = _ // j/ // � j / WEST ASH BASIN 1 ) %/ �// ///Ill i �// % �;__ /J\ � �-_ \ \ \ \ \ \� \\� �\ \\ �___ \ ( 1 - - ss ��\\ l \\ 1. APPROXIMATE LIMITS OF WASTE PRESENTED HEREIN WERE /� // / / / APPROXIMATE LIMIT i \\ / (- /�// W/, --/ �,�� _ i \ \ \ \\\ l �� \ _ \ \\ = - _ , _ -_� / III �- �- - _ �� o / I \ \ \ / _ - - \ 1 \\ PREPARED BY SYNTERRA FOR DUKE ENERGY. // / J//j/� / /(( v- I 1 I / / //(L ///,/� v�� A I ( \ VA� \ VA \ 1\ I I �1�� - _ _ = �� V A \v�� V \ / / / / / I S _ - AA� ( \�V v / / - - 2. 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I I SEAL SCALE: AS SHOWN DES: BBC 1\\__ -_ \\ 1\ I ?� / I 1 I I 11 / I/ / \\\\ 1\1 I \1� I / 1 \V� \ I / _ \ \ I I I/ Ili) II� A� / (I�////// \ / / // � \�� A\\\V\\ IIII I \\ � '_�11111 1 �_ 1/ I 11 /I / / \\ yv i,�)I�III��IIIIIIII IIII I11 I // / i\ V Av v/ / V A\ ( / I / //l /ll I / l / A \ \ \ 1 !<\_�%� - II II I \ \ \ o ( 11\ \ - //��-�\ �\ I I I ( /(/�/ II `�///II \//i / \ \ \\ �\ \\\\\\\ (II ��// I II I\\ s v y ,�- -\ �- , v�_� / / l I /// l� // ,II li) / \�\ \ -�\ I =l i�i�/ll 111/%IIII II VAS v �/ > I ( (� -, Vvv V --// / _ v v \ �_/ / )/ I�11/ll/l/ lI v�r/ll /// /// / // / �- A \\V\\\VAAv�\ v1 �// rr//�ll/�/ 111 / \_�s3 pyl \\ l� \� \ ��_ \\� \\\ / l I \ \ \ , I `\ p IIII , _ _ \ I l/ll;,l (\ \ / / , I ,III /I 1 ( \ I \\ \ \\\\ /�,/// I - 1 -,//, \\ / \ i I \ 1 \ \\ 1\\ / /// / // /%/ / 11 ///, \ I 1 i \ - / � > > \ / I / I 1 \ \ I I I I I I I \ \ QUANTITIES TABLE DESCRIPTION APPROXIMATE AMOUNT CAMA LIMIT OF WASTE AREA 71.3 ACRES CAMA LIMIT OF WASTE ASH VOLUME 3,240,000 CY 7- DUKE DWG TYPE: DWG DFTR : BBC -10 N F �G1�® JOB NO: 7812190186 CHKD: TM NOT FOR DATE: 12/18/2019 ENGR: CK CONSTRUCTION FILENAME: ESTIMATED BOTTOM OF ASH CONTOUR MAP.dwg APPD: CK �� _// /// /�% / / I \//// \i\\ \ // I 1 \\\� / �i /j yF \ ��_ _\� % I I \ ` — \ — J / / / II III II DWG SIZE DRAWING NO. REVISION /////// // I \//�/�/��V1X�\ ��_ I I/ ��\ v //// / �i VI / \ �� - / II ( / / / / I/ /A ///i \\\ - - _- v �/ �� v \ / - I / I I I / /// /// \\\\ 1 _ _ - I \ / // �\ \ \ t \ -- \ / 1 � - _ , _ (�\ _ "- - ANSI ° ROX C999.001.006 0 �� = \�� //// / I \_\\� \ `J _ ti - —� — — 0 12/18/2019 7812190186 DESIGN PLAN BBC BBC TM CK CK ISSUED FOR REVIEW ::::::::]22"x34" iiy �I///j l� ll l � Ai///ll %� yyy �=�v / l v�- // / / \\ \\� �\\ \\ \ I /� \ \\ // I / I i // / / \ \\\ \ — = � I \ \ \\ -- _ � , / �_ = J — — — REV DATE JOB NO. 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/� / ° / / / / /j // // / �/ /// /� \ I I \ 1� V �*, \� \� /1i / j 1 �� /> `ice ,-%— - / yo,� ,/,\ii��/i //�//�// �j////�/�j/ `�� \ \ \\\ \ \\ \\ \\\\\ \\ �� \ / \\ /I / /\ c a�o� I l % / -� L \ c DOWNPIPE /�/ / / �/ / i 1b //o / // / \ / I \ \ / \ / / / �V /ice / / - / / 5`L j / / / //// / - / /� /////% // -u � )1 I V A \ \ \ V I \ A \� A — O / / / 1 I / /fJ\� \ DP-7 OUTLET /� / J /�" 3 /// j // � / \ / \ \ % / I \ / i VAV / y / /i// / / y A I / % / // /� �o \ V I I A� \ ( \ \ \ �� / \ / // / / / / //// / \ I \ (� / / ) \ I / / LEACHATE \ \ _/%/ // j�/�i ///// /� / \ \ \ \ \ _ \ \ 1 \ \ i I \ \ I r/// FORCE MAIN \�� - \\\I I �5 i / // / / / / // / / -/ / // / /�/� % / l °S / / \ \ \ \ /� \ C \ \ \ \ \ \ \ \ \ LEACHATE LIFT _ r \ 1 I I I / \ 1 / / / / / / / /i // / r \ \ - - \ \ \ \ \STATION I I - 1 \/ l \ \ I / / / \ - -- Jlii - / /�i / // �// / //�/� /// / of \ o \\ \ \ \ \\ ( \ ) 1 LINED \ / /� LEACHATE EQUALIZATION 470 - - - / / / / / / /i/! / /� /j/// / / / s S • \ \ �\ \ \ \ \ \ \ \ \ \ \ \ \ \� ^ \�� - - - ,- �/ - PORTION OF 1\ \ \ / 1 I / /// _ / - - / / - - - / //-%i �i LEACHATE //ji/i/, C /f / /�j� //��/� o o ) I \ \ \ \ \ \ \ - _ - -I \ INDUSTRIAL TANK FACILITY // - / / - , rn \ \ \ \ \ \ \ /// \ / / / / // / \ \ \ \ \ \� / \ I //� -_ - / ^ _ I EAST ASH BASIN \ \ \ O / /� \r / /%/ i i / 1 GRAVITY DRAIN ///i / / o \ \ \ \ \ \ J \ LEACHATE // / //% �/� ti o I \ l j/// / 1S SHEE /� N - - / / / //i / ii / // /� /i// /� = �� I APPROXIMATE \ \ \\ \ \ \ \ \ GRAVITY DRAIN \ LANDFIL / TN - / / / // / i �i /i /i /�////i // /�= l _ - \ \ \ \ ' PERMITTED LCID \ \ \ \ \ \ \ - _ / / \ I I/// E ON �� r - - / /�// /� /// / // /i , / /_ v�� I LIMIT OF WASTE V A v \ \ V A A \ v � - - ■■ I \ o / NS T / _� / / / /� / /i ////i/ ///// /�/� _ �\ �� \ �\ -� - \ 1 1 LANDFILL LIMIT � - ■ 1 I -I'_//j/ SEES I� ��' / s/po i�//ii/ /j��\ �i/ /ice-=== _�� = I I11 \ \ \\ \ \ \\ \ ��/ \� \ I ■i■■ I 1 \� � / / / % L, - \ � ( / y -o° DOWNPIPE i i i%j / �` � --i �► _ _ — - - \�` �� 1� �� \ I\ I I I I I I) \ \ \ \ 48 CPE CULVERT \ I ■■■■ '0- \\ I 1 \ \ 0 / r _ /- _ e l �/, , /// ) �v—��)� / I I 1) I I I I I I v v v v \ �� ,v ■■0 \ / o ( / / Via? \ > 1- vv I (I /�I ll��// DP-6R OUTLET �// �// - �� _ - > > / / I I I - �� / 1 I I / \ vv �� v A \V 1 V I _ ( J / o / v v v \ v vv v v \ \ 4 �II �- (�cvV°\��v Q � vv �\ I I (III (-- ego%��_ _ _ IV �� / � /1 I ))�, _- �\ -o / / //// v v v v v \' 1 v v I \V A v — —=47 =� 0 �A Aso A VA\ \\VA�\ (, -- -**- ) ( " — � = V\ / \ \ — v \ \ '� �� \ %_ _ = �, �� I (� \v�\ �w�� o \ / " \\\\ v��A \ s4o _ _ _ _ _ �► \ V A ��> A _ ;�� _ — w � = — _ �V , I I VII I III I 1 I I I *Woo-� r �- ' I v -- ► / A V A )\)\� A� \\ VA \ S\ _ - - - I _ A ��_ - -_ = J I I I o I vv LEGEND /�i/ \ i— —� p0 \ \ ))J �\ �� \ f ) \\ \_\ 3n — ( I LC____ _ �\ — �— —�—_ J) I I I \ II I I III\ II \ ` �� I I I \ �-�- / a- - \ �o�\ \ \ \ / / LEACHATE - ( ( 1 �__ -- v _:�� _ _��)J / o ��__ � - _ iI I IIIIIII I I 1 I I I ( I 1 I III \y V� \ \,�� - 1 �� _ -- _-,� �� #-; �� vim- _ __- 1 II II IIII III III IIII II) IIII II I �_-♦�� c� % ' - I v - ---_ - -- = I IIII 1 II I I III )) I =_ -- - i �, / /'I / r \\ ) - v j% r �\ v v v'Q5o� �v ��A1� A / \\ \ ' / � - �— _ y y �y � �� - v�/ \\�= _�-_ _ _ I I I \IIII III \ I III (r // -_ _ = t ,.�� s i \ / \ / ° / V AA\ \ \ % \ V / �/ A \� LIFT STATION I ) T- _ = _ - �� <(� _ - �_- _ _ - '_- IIIIII I V I 1 I I II I I III I �Ibll // / // ) J / \ V / -i-� - _ � I /_ _ _ - ___ - EXISTING MAJOR CONTOURS //�%/ / / VA\ V i o \V < 1 �v A vvv —_=�/ ( \� oo /� �/ 1 I ��_�,/� t _ _ A - - �_� � �� - _ - _ __ _�_ =_ I V I I I I I I )III // _ _- _ / '/ /1 / �� v\ I vv v� v // �� --_-_ --- _ v1�_— =V_ — - --��1111 I II I A \II� I //j' _ -�-= �1 �� / l/ V /� v\\ //, %� / AA\ \ �vv�\w� �� vyvww�� -�iC= --_ - -��_ �� ,-_w �%=_== - � _ __ — _ �j� I II III IIII 1\�//� — _ �_= 1v /'' \ \ \\ \ \\ o \ \ - = - - - - LEACHATE - - EAST ASH BASIN \ _ _ __ _ _= = \ ! - �- II 1 II �� I I I I / //// �_ = ` - \ \\ \ EXISTING MINOR CONTOURS a/ / Q9oo\\\ \ \� \\\�� `� �r�;�\\�__ _ GRAVITY DRAIN- '�\�� r o)//h�� ---z I o q \o \111 I)\ III ��\III j ��- = _� \�� \ \ DISCHARGE \\ / ► o, \ \ \ \ � \\\ 90 - \ _ _ %\�\ _ .IIII ♦` \\ \ \ III III h I /// _ - - �\ \ \ \\� I / / _ LEAK \ (\\\\ - \ \ \ 5 �� \\ \ \��\ /_T �_ / / / \ \ �� \ ��®0 \� I I I o/ l )IIII I\1 III ( IIII \II //\/ --� \\\ \ l(�)(t . . . . . . . . APPROXIMATE ASH BASIN LIMIT OF WASTE OUTLETS )� �/ 1 �111 �V vvv -1 vvvv vva� � _ �� ( - -� - L / � \ / ) ) Ill A/' _ IIII o ( I 1 1\ �I I //// - VA \\ 1 /DETECTION oo ) // \\ �480 \ = ��-t _- - --- ! / / \ 1 I I q I Ir - J IIIII I II / I //I // EASTERN EXTENSION \\ \L�l\\� rl (2) 30" RCP PIPES � \ r (v o / -\ \ \\�gj��\\�\��a �- > > \! �� _ ��, //l � � II I II I,o c� , 11 � �� I�1111 I I I1\I IIIII \\ I1 I i ) 1) 1 ' 1 120" PIPE / \I VAULT //gyp /f -/ - - \ �o \\ �� / 1 1 «� _ \ III I \ I IMPOUNDMENT AREA OF THE /� II o1 11 � � UNLINED PORTION OF INDUSTRIAL LANDFILL O / "I -__ _- /�, v� Z� �� 1 �/-,)IIII o o ♦ ll�l 1 1 I I 1 II % I ( - \ _ - /% // / \ \ \ �t� < < / �� \ , Cow o I I \ III IIII II 111111 1 III I EAST ASH BASIN /-- / /�/ a I. k^ V I \ ��-____-___ii� / v ,- vvw __ I �? v v � � �_) I III ♦ III )° III I I II A \)I I I ,, I j I1 0 (\ -_ v \ \ \___ ��o '�\� - �\\ 1 III �� ♦ I f II II I I III I I /, % \ \\\ \ \` _ - _ �_/ 1 °\ \\\� �. \ �� _ -\� \ II I o IIII ✓/ ` I III II / IIII I \1 \\\ \ \ l /"j' / /- - -/��// i LINED PORTION OF INDUSTRIAL LANDFILL 1 �\\ \ 4 l v \°V , �< _ -_ _ - / �- / yw v�\\ _ — - = _ �� VA - w / Z� v v w \ � v\) \VA \V� � �\vim f ♦ IIIIII 1, / I I I I III IIII 1 I 1 VA I o/�o° °� \ 4 PE \�4� ---- \ \ �Jt) I II / \ \ o I o / -- Av \)I A\vJ� — y 8 C v� / v � ��- _ ) V A �e v\vvvv v\ vVA v Vv ,� III) 9 ♦ ♦ IIII \ / I III I III \ VA\ Vvv /�,,h _wv �. I/) / A v \V A�v \ - �� CULVERT '`- 1 � ( \ 1 y v J \ I AVA v\ v � 7 I IIIIIII / �� I I� 1 /I IIII IIIIII I I (IIIIIII V I \ \ VAV�\\\ vs2 4 �I)I I'1 -V�w \\� �A STRUCTURES TO BE DEMOLISHED/ABANDONED / , A�\\� - //f ! / 1 A (� v / /� ) \ 1 A \ vv �� vv�►AVv\ \.,\\ vI o III ♦ (off I I) I U I I I \ \ s o l v / \ �\ \ /� ( I \ \" � \ !\\<\ 1 / ` ) -� \\ /A� _ o \\\ \ \ �- 11 ) I \ III IIII III 1\11 \ I I 1 a\ \ �\O\ s\ "\� � \ \lll �� /o - 1 v� / v ♦ / _ I \ �> V 1 \ I ) ) o A vo \v29 I (� �% v � II //yam Ar \ / >/ / \ ) ! r \ \\) ` / �� ` \\\\\\ \ \ \\�\\ \♦/// ♦ III I I I I / I o \ \ ,� I \\\ I / \\\ \\ \ \ III I I 1 \ � PERMITTED LCID LANDFIL LIMIT /—/ ♦ / v I \ \ \ v// �� —�� — v� v\v \\\ �► I ,�II IIIIII I I of o /)\ / l �A �, A/iywv�w\\� _ 1 , /// / /vv vvv �/� v \�� S I \V.. / ( \ \\�1 \ _/ _�vv� \ �� 1 0 /i/ \ \\ - \ 1/ \ j\ r�o II/��/� -� _= \\ �\ > I //// ♦ II II),v IIII I, NIA, / /// \-/� \\ \\ /i \�� \\\ � �"/ 4s0 1 I I I \ v \ / / /� v V // / \ I vA vV \\ / _ � v � v \VAVA\ \ \V /// I I I I� o //i k�/ \ \ \ \ 11 I / \ \ \ \ \\I / // ♦ I 1 o I I M I I / / - - \ �\ \ �/� \ \ \\ / - v A I / �I 1 v� - / / A / /I I\ VA ) l /� / _ A �y A A V\�i 1 VAVA\ - \ 11A II ) ��// III / II I I' / / // /, // / / _ _ VAA v�// \ \\\�\\VA ��i AREA A CLOSURE EVENT 1 LIMIT _ \ f 1 I / /i=:— `\� a -� it IIIII // II I v v v) �� /�/ '//r \ \ IIVIIv /�! /',-__= v�w- ---yW /�\ �II o / /' I I / �I�II��I �I IIII //////// , _ _v vv��v\\\\\\ V�Vv 1 III � v �I �- I V v / �V � /// / / AA \ y A�\ \Vvy_ %��/� %/��i ��)/�\ti�l l\1A \\IIIIII 1 ////�/ IIIII 1 I'lll �l l l�/ III ollll�l I I /�lll�i// / ----�A vv�� A\ \\V\� \ J \ / �// � ��- /� // �\ \ \ \\\ _/� �i s /� III \ II IIII ) ` ////// I I I� I I )I I \ I / I / / / � - - - \ \ \ \�\) \\\ OHE EXISTING OVERHEAD ELECTRIC I / \ l (///� // � / \ \1 1 �' // ' /�i /� J'// �1 I I - I I I / (<� I I III I I I <�/ - - - / / �¢ v \ ��`� —� // // - v \ VA_/%/ /� J / �,��v I I VII \ o I I I III I1 IIIII �II)))1� /// y y'/ -__+yam \ Ill I I \ 11 0 _ v \ \) I I \ j / s/ - A 1�%/ � J I / v \ VA w A ,�i� �/ / //ice � / � III I I Il l \v �� III /1� ' I � I 1 I I I III � I I I III \ 1 \ IIII / / / / � � _ v v vv I \ ( \ _ \ \ \ 1 - -- '/ �I\ I� /( / /� / /III ( / - \\ \ 1/ \ I1 / -/ , -�i -/� \ ��I 1 I II\ \_ _ _ �)\�\ l/ a 1 II / I II \ I I /I / �\ \ 11 I PROJECT NOTES: / I �� - = - \\ \\ \\I\ \\ ' - _ �� IIII (/ I '�11\ I�\�1►G`-\�\ \ \ \ I / f �\ ��' O /\/// // \ III \ l _-- - J �� \� III / 1 I II I ° I I I I I \` I / / - \ \ I �I I \ �� =480� \\ \ \\ �,/� / - III / \\I J // \ \ \ h/ \\ / �J ///,/////% -\ II I \�\�= <<�� \ \ 1� III II II III \\\1\ II I � / - \\\\\ I) II IIII (1 ( 1. AREAACLOSURE EVENT N0.1 HATCHING INDICATES THE \\ \ - \ \\ / / 1 %� ) \ �1�j/ _ \ \ \ \ \ \ I��// // / / I - =� ��` r\\ \ III / I IIII I I If II i \\ \III I / / / \I C 1 APPROXIMATE LIMIT OF GEOSYNTHETIC AND SOIL FINAL / \ / -/ / ,\II //�l/\� �/ \\\ \\ \� // \\ I�//�i // // / II \ /----�\� \\ I I III I 11 \\\ / \I\ I 1 / IIII I IIII111(� ll� S \4 so /op� \ \ \\\ // j � � �/ /� II l �// 11 \ _ \ \\ \ �� / \ 4lIll � / �/ / / / / / � �� r (1u/ I IIIIII � I I \ / ��\ IIII 11 I I / / \ I / // ) 111 II III (11 I \ COVER CONSTRUCTED ON THE UNLINED PORTION OF THE \ _ / \ \\�� /� -/ Illl��,i� / ,�i��y_ / \V AVA\\ ♦ A\ - AV �\ �/ f�'�i/\( // / _ Av�vJ I ,� / v�� I (I IIIIII III III 1 �( 1 I / �/ / / \ // //I 11III IIIII\ 1A - ��/ //� \ \ / // / / - A \ \ (��1 A\V .�//// JI/// ) / / / = \� - vAV� \� I l ( 1 I �� /I I / / ////%/ Ill \\VA INDUSTRIAL LANDFILL. THE REMAINDER OF THE UNLINED - y�l / A � �v /// y / - v 1 t PERMITTED - v vA \ IA) A\\ 1 1\ �\, \ /i//1// �l l l 1 j / / / / _ y v v ( - \'v r I I III III I Il_ �,� �� / ( \ l I / / //�//IIII ) IIII�I I I \ / / LCID LANDFILL LIMIT \ 1 \\ �� // ( / / ��- �� (\�� \ \/ I I I I ill \\\ / / / I i / \ll III \ PORTION OF THE INDUSTRIAL LANDFILL CURRENTLY HAS A \ \ - r/ / \ \ ��o / _ I / �( / / / �~ \ \ to II I �\ l-\�\ I I / 11///�/ii/ I \' ��/ / //� \ ° l((o/ vv�v�yy�///� A` ) 1I1��11\J j / A\\ f ((VIIIII II II /�/// I / / / ( �= =�� /-\�vvo�� II II Illy/ �� \\\ ��1 I\ 11)� I / / I Ill�ll/((//i�A/il IIIII soILCAP. / \ / \ \ \ / / / / I I I � � � - - � o � \\\\ \\\\ / \ �\ l I I , / l %/ / / �/ \ / �/ \ \ J 1,01 / - - \�� _ //// \ \ l / l �/% ��, , /� / \\ ��r\\\�\\\\` I I I` \�I\ \\ I. \ �. I. (. \ �� \, \, �> \ � �. - �\\\\ �\\ � / ,-\\\\ , ( 0 / �\ IIIII II \ /\ \ J\ III (� 1 Z/ /� ///� /)1,\\\\\ \\�\\ ((I 2. WITHIN THE LIMIT OF UTILITY RELOCATION (BETWEEN / �/ \ I I I I \\ / L� III III,/",\�/\ �I I i o / // /,\� ,-,1 - -------- - - - - - --- -- -- / // \ �y \ n I \ - J/ I / �/� �/ /j/,// )l(�\ /; \\ _ \\ \\\\\ \ \ \\\`��\� _ \\\ - _ �/r // �- , �// / /l /� fir- OF INDUSTRIAL LANDFILL/ice/// %/ ////////�% GEOMEMBRANE), THE CONTRACTOR WILL BE RESPONSIBLE // �/ / / / / ( - \ Iy I DUNNAWAY ROAD / / / / / // // \ / \ \ \ \ �\ \\__ _ \\\ - /�� f/ // \ \\\\\\\ \\ / / ///////� (/ } / III _ - _ /// ///// ��/ /� ,/ , / ,� /�/ I% - \ \\ \\ \\\� \ \ \\ = \\ \� /� - \ ,\\\\\\\� � - /' //// / / l \� - / I//// /// \ �j// FOR TEMPORARY RELOCATION OF UTILITIES DURING ///// / / _ �I / �� / pi/ / /� // / \ \\ \\ ) \�\\ �l Z1 _��\ \�-\\\ \- / �� J// /�� \_ `�\ \\\\\ \ / / // / //// / r / / / / l ll��/� ///�%/ /�//// `j��i CONSTRUCTION. UTILITIES TO BE RELOCATED INCLUDE: \ \ / / / \ \- - \ �- _ , \ \ �/ / 1 I i/ / \ \ \ \\\�__� `- - -�56 / / / ✓ / / _ /�// / / /// //ice ��/ OVERHEAD AND BURIED ELECTRIC POWER, DUAL CONTAINED l ( - \ / // /i //i�% /// I// ,.y.�� %�� - \� \\\\\ \ \\ \� 7 »j/� / 1 11 \ \ ��// ��\\\\ \\\ ////��b (\ \ \�� \� \\\\�\��= = _ _- _55�/%/ / / i %/ / // \ (l lI �I/l I ((` /(/ \�ii /��/ (g /12") HDPE LEACHATE FORCE MAIN, AND TWO FIBER OPTIC \ Z - _ - - ��\ \ l I v/ /j / / / /� /�- / /� \\\ \\ / //// / // I I - // / r\\ 11 l�\\ \ / //� \ \ \ \ \ \� _ _ - - = p� / > t < \IIIII I \ \\ \ L// /i/i/ // CABLES (NOT SHOWN), EACH IN A 3-INCH PVC CONDUIT - - / // - // //�/��\I \ I I / 1/ / �/ �/ // 1 //�� \\�//e / / \\� \\ \ 1 � \\ \ // //// / / / Z L L __� ////� \)I �( \\ - //ll/ \\ (� \ \\� - ��/ \ \� 1\ / ice- //// i - 1 GENERALLY FOLLOWING THE ALIGNMENT OF THE FORCE MAIN 1\ ( ( / (/ //� �\\- \\ ��/ I \\ \ _/ / 1 \ 1 LINED PORTION \\ \ \ \��) /1 /� - J�j/� / \ _ - �'� / /�i /i \ I \I I ( I `\ / / = \� /% / / \\ \ \\ / /// I = _ _ _ /� \ ( \--\ - ///�\\\\\ l� \� - �.�� ( ') /1 - / \ \ -` I \ _ — //// / AND ASSOCIATED JUNCTION BOXES. \1\=- ►� j/ // //�// \ \ \\ I IIII \\l\�\\\\(� ///////�\� \ \ ) 0\111�\� \a�i\ o )) (I(��\ _ �ii�Illl\�\\\_/i///\\\ \\(�1 L ��`-� OF INDUSTRIAL LANDFILL/ \\\ )11III�\\ _ - J// % j ) ��- ��- ) / �� \� \\\j/ �J/ /( \ / - / J \ \ \ / p \ / � _ _ _ _ // \\ / // \\l 1 I \ _ _ �\J /// / / 3. EXISTING ITEMS TO BE REMOVED INCLUDE FOUR CULVERTS, �. - - / /�/ // // \ 1 \JI�I\\ �� \ / /I(/I /'� \/- �� \\ a/� \ \ill \\ \��___-- _ ll�\ \�/� r/�\\\\\\��_ �\ 1 (( / r ( I i L ; ii l/1 �¢ l 1 I IIIIII\i�� / /// // E �� - / /// /' - / J 1 ( �\ l�ll✓/ �, I I ( \� i - \ i)I //o� ��\�/ / \\ � _�i�� t t \l! \\\� // \\ \ \�\� \ Z _ ` \ /// �� mil) I <v \�� /// / /� / JERSEY BARRIERS (NOT SHOWN), AND A CONCRETE SLAB. // v �\ 11I /vv1I1 III v� - \ I / ♦� >ll� I (IIIIIII ii/��v �/ I/ / v l�� ((� _ v� %� / v v vvv __�� - v 1l // v�� 11 / v � �= / / �'/ / / / / / - - _7\ \1 I II l �j\� J11 \\\(� \ \\I1Q'\� I \-� �- /i \ \\\\ \\ \ _ -- \ _ /// o ` - \�`" \ \ �V/ ` \\ ; /// \ \ I I I \ I I 1 1 1\ / \ \� \\ \ �< \ \\ \ _ �� - �� 1 I / J \\ \\ ✓ -\ \ \ \ 1 / REFERENCES: I --- I II // - I �-- ! \10Lv \\\ ��// .M \�\\- \\ \\ �� _ �\ \ Ss �� / I 1 1 \/ 1 / J 1 / /// / / ( / 1 r \ I I / I 1\\ / o / \ , �'— / \ \ \ \ — — I I /I \ \\\\ //� /i / i/ // / v l \ V )l/l) III// /�_�J I ( I1�vv�VAVA1\\ L �� v vv vv vv\ 1� �`_---' = /// � \ 1 )vim//� v \\ / / /�//� / \ I > //////// /�/ /// �� V vv\ v -�� y - - /� / 1 - - v� \ \ \ y - v \ �)\\ \ \\\V \ \ _ - �A v v v \ v _ ;w v - - - 1 l �l I I I ( \ A 1. APPROXIMATE LIMITS OF WASTE PRESENTED HEREIN WERE / , Z//// // / / WEST ASH BASIN 1 / //�j// ///�//� `_-:\ -/ /(/ / / \�\ \ \\\ �l� mob' - �� \ \ \\� - \ \� - I / - Z9 - / \ \ �- \ / // /i / / \ / // / / / \ \ \\\\� \ \\ \ \ ��\�\\\\\\- _ ;, - / /// / - I \ \ / / _ \ PREPARED BY SYNTERRA FOR DUKE ENERGY. / �/ / fj / APPROXIMATE LIMIT / V 1 l ��// �/ �j//�i - I ( / \ \ \ lIl l))) 1� �\ �� - - =r\ - VAv\ \� v � _ III - - - _ ) - / //� ( II/l� ///ice/ AV A \ \V l�-v ��-==-5` - y__�A v \ vim- ,v�1 - l �ll I _ v A ( \vvv) _ \ \ I(/ ( / 1 // ( \ ( \ WASTE I II I ( �� /� j// �\, � - -) �- \ \ \ \ II I Illll / 7 t\\�� /� / - - - - - \\\�\\ - �/� / / / 1 I \ \\ -- = - \ \ \ \ -/ 1 �/ - 2. TOPOGRAPHY IN EXISTING INDUSTRIAL LANDFILL AREA FROM 11 ( ( ( \ \ �� / I �/�// -� - \ \ \ II I / // ��\\_� \ / �/ � = �;--- EAST ASHBASIN,-\ \ `�\ \/% I / I I ` _-- / - \ I` \ \ - 1 II II( �/ %� / 1 \ II IIIII / // // �\- _ !� / / - _ _ �- _ \\\ 1 I 1 \ \� z / I I \ \ \ ; - - - ��\� \ \ \ I -� /i/ / - - \ \\ MAY 15, 2017 AERIAL SURVEY BY STEWART. OTHER I I\ \� \A\ \\- \, \ \ � \ (PER SEPARATE (\ I III �/ /�- - _ -\ � \ _ - J 1 ) III /l �� - \ � \\ / � � - - = ___- = � APPROXIMATE -- -1 -- \\\\� I I I \\ \ \ \ � � � - \ \\\ \�� - - / / //-- -�\� s \ - _ -i l l II )\\ 1//�//� ��_ - \ �/ /I �/—_-_--_ \LIMIT OF WASTE - \\\ \� \ o \\ � >\ 1 I I / - \\ \\\ �\ PERMIT SET) I II \'- // III , / \ \ - I \ / / / \ \ \ � / / \ 1 TOPOGRAPHY FROM APRIL 16, 2014 AERIAL SURVEY BY WSP. \ \ �� \ _ \ I `//// / ice— \ \�O \ ( — l �) \ \ I --- _ \�—\ \\ jam— — / \\ �t - 1 \ \ / / // I - - _ \ s \ \ \ - / / / / / \ \ \ \ 50 0 50 100 FT v v v \\ /i / v V v \ / � l / / JJ/lull/ 11 / - v v - / / / / I 1 v �� vv��vv - I \ \ v A \ 1l _;i /�\ l/l 1/ l/ - v v ,\ ll - _ v �_ _ v //---= v - // / /// / wV\VA /// \ \ \ I-- - \ - i �� - \\ \\ \ �- %/ / /// / \ \ \ \ o �_�- � \ - / \ /-/l \ / / /// / / \ \ vvv vv vvvv vv / vvvv //�///,//— �,v I I 1 / _ �/ /�/�/ / / / / _ vvAvvvv vv 1 (r vv, v v vv \ / / vv�� // �� A�\ / - V I II \� //ir/ I( ll�l l-- v� Vvvvv \\ V I %'----- �w\v/ vv`-/ � \ V v v / /// / / / l( / / wV AVA v v v /- v I I I / //i/// l \ - - �-% v \ ____�� vvA \v vv - I // / i _ S�/ _ A \ \ \11 I 1 // / /- / /// II // / / // \ \\ 1\ \ \I I I f �/ i/ - \ \\\\ / % \ / - / \ \\ // \) I ) / / / ��- -///// /// / \ \ \ \ \\\\\ \\ I / // -�� \ \\ - _- \ s \ /� 1 / / / / / \ SCALE: 1 "=50' / ��'�� - - � � \� I I I C / I l 1/ -\- \/ 1 /l �'/ ///� / ��/ lull / , \\\ \\ \ \ \\ \ \ � \ III r \\\\ /� \\ \\\� (///\ _ _Soo \ \ \ l / (I \\\ ( ( / / TITLE \� �� // \ \\ (III \\\\� J I I / / i/\ /� //i��\//////� �// %/ / / / �� - \ \\ \\\\ \ \\ \ 1l \1 \ \ \\\ I (� - \\ �i/ - _� \� (l -- - 1 \ \ / �i/ �\ \\\\ I / ��\\��^ _ � ��\ > I _ J / , /i / //%� /�/,// / _ / /�l l� /// \\\\� �\ \\ \ 1\ \ \\ \ I — \) II / — _ _ \ \\\ \\ Q / // // /0 \) )\\ I \ I CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS \� // �\� - �\ >IIII I\1\ -\ ( / �//�/jai/\;%--w - I l l l / �\\ \ \ \ \\ I /--- ��\ /-� �� \ 1 \ /i / // / / / / 1 \ \ \ I 1 \\\ 1 I I �/ \ - - \ \\ \ 1 I 1 1 \ �OO _ /� _ �c�\ � \ 4 I ( /ii�// / < - -�\ l 11 11 l /�I /� I I 1 \. I I \ �\ \ - i -\ \ 11 _ �� \ s / /p / - �- \ —(� =— — _�) 11 )I I 111\ I \ \ / / /�� ,/\/ /ram __—\ \� III (Il/ l/ // \\\\) II\ I 11 \\\ \\\ \� �— /\ \\�\�\111 I////�-- \\�\\\' / / �'//\, �% J/ I i I I EAST ASH BASIN CLOSURE BY EXCAVATION ( � _I -c ;�\ ti / /�//�,�// �- _ = \ \\\\ III / / 1 / / / I I I\ \ \\\ \\\ \\\,\I \ I - - \ o \ l 1 I /� 1 I I • ( ;�\\ r - � //� _ _�_\�111\I IIII I I \ /%/ /� — -�\ \ I I �/ 1 )\ II I I \\\�\\ \\\ \\\ ` /� \\\\ �I 1 III \\� ( l i I 1 I I / �\ /� //// // //% _ _ �\ \�\\ II II I( III / / 11� I I III \� I \ \ 1 �\ \ \ �� \\\\ \\ \III 1 \��s\s�\\�� I I I I 1 II �� /' // /// I ROXBORO STEAM ELECTRIC PLANT / 11) (�,- - a - _ - \- \ I \ I I I - I I \\ % /i /�i�, - I I I I I -- i I \ \ \ \\ / / _ - \\ o \\\ \ c l / / �� - \\ / ,�\\ \� ) , C ( � ��- /// = ^ \\\\\ \\ \�� Jll1I 111 (\\ \ \\� \\ )) / I I `\ \�\ \\ \I , \\ \\ \\\�\ \ \� \ / �/ \ \ I I / �a ° \ \ I ( i // / / I Environment & Infrastructure Solutions F \ \ i / / — / I I — _ _ _ \� ( '�' I I \ \ ( 1 \\ ` \\ 1✓//_ i = , \ \ \\\ \ \ \\\ \\ \ � \ l ( \\ \\ \\\ \\ I >�/ /)//� // , /� / / / — — \ \ �\ Ill 1/)I I / Il \ \\ �\ \ \ \ / / i i 4021 STIRRUP CREEK DRIVE, SUITE 100 \I I/� \ \ o I / _ \ \ \ I \ / > > 1 / \ \ \ \ III I I) I I / PERSON COUNTY NORTH CAROLINA \ \ / �� //// — �/ \\ \I I (NI I I 1 I \\\ \l\�� ))))I/// �- — �\\\ \\\ \ )1 I\\ \\ \ \\ �\ ��\\\\\ /// /// /// /// // /// \ \\ \1// I 1 540� \ \\\\\\ I� / / DURHAMI27703 \ \$ / \ \ - \�\\� I \ \ \� \/ / / \ \ /�\ I \\ \\ 'IIII I I I / / \ ( 11 Ill - \ \ \ ��, I I /� I I \� \\ (/\ /i %_ - = _ \\ \ \ \ \ \ \\ \\ ��\ \ \ \I ( / /�/ / / / / _ \ / / ) , \ I I �/ / TEL: (919) 381-9900 DEMOLITION PLAN \ \ I _ \\ o \ \ C /// — _ — \ \\ \\\ \ \ \ \/ \ \\ \ \ \\\ \ l / / // / '\ \\ \ / % / \\ \�\\ \ I I I I ( ( I /i — FAX: (919) 381-9901 \ \ I I I \ I IIII 11/( �/ / � v v s� °�\\ / (/ \VA \ VA A �/ % / I— — — — — — — A AV V\ I ) 1 1 \� \ \\ \ v V\\VA \\ \\ I / // / / / / / // / // A �// / O _ v \ \ \VA \ I I I I — LICENSURE: FOR / \\�_,�$ 2�/�/i/-- \ I ��//_� \I>l \\\\\\ II �II�I 11 111 /// / \\ \�J�/i��//-\\� \\\1\ \�\II\` ( \\ I \ \\ ��- I)/ �I ( \ (IIIIIIIvv I / /o -�- \b \ v v\ v V A \Ill ��= M / v )�/I / // v —�// / v / \ \ \ \ / �530 III I l \ \ \ / /// — \ \\)ll 1 I II \\ \ /�/� // // // 1 ( i \\ 1 I / l // / // / _ \\ / / / \ \ 1 \ I \ \\ \ \ \ \ NCENG F-1253 ISSUED FOR REVIEW ( II \\ \ I / / \ \\\ \I ( / / I I I I I \ \ : �� / �� — \ \\ I _ / / / — — \ \� � / / \ \ \ \\ Q \\\I \ \ \ \ \ \ \ I I NC GEOLOGY: C 247 II( \v v� 1�=AVA \\ I // �"� < vv 1� l I I / AvA v\\\/ / \ \ I I II II IIII V /l(1 // � _ �// - 1�� \\vI I/ll I I�///l l //�/l / l ( \s ////� v A \ \ V \ \ I v/ I / \ IL v \VA 1 I l / //I-- �v VA\ ��\\�V AV\\V A V I I v - ;� z A \ I Z �sQv ��- �� ( I v / /\ vv�� // - - v I I I I I \� / / / /� /- / -�v A \ 1 \I I I I I / / / I I \ o // / A \ I V A \ \\ \\ \ \VII I SEAL SCALE: AS SHOWN DES: BBC \\v ,\ \ \ I c� o I III 1 l \ \ / / I ) // / �/ \ \ 1 I I I / // I \ / ^// / v v 1 \ III\\ )1 I / 1% \V� \ � I \ \v/ // I ( \ \ I I I ) II )�I 1 // / / // / /v \Q v\�VI� 111III1 I II I I V v� v v��,//-z/ / ,- 1 vvv) l \V A\\ v \\ O \\ \\- _ z7� \ )� I I I I I I I I o o -- \ \ / l /) I / (l l l / / \ )) 1 \ \ \ \ \ \ \ ��=,;1)IIIII �II I I I \ / /—\ / / /J I ` / \ \\\\ I Illl (l \ - ,_ I // / J\\ \ / X _ \ \ I I / I \ J/llf ( / \/ / / / \ \ \\ \ \\\\\ J I IIII \ \\ I \ \ \ / / �\ / / - ) ILII I \ \ \\ \ \ DWG TYPE: DWG DFTR: BBC ��,� IIIIIII II \ \ i o / , v v I / // I l �/ v \V \\ \ \III / v % ��'�/11111111 //111 I IA, vs, � ( \A-'\ I, v�__�/ /(--v vvV l l I / I�lll///l/ ��j///ll I //// / \\\\\ \\\\� IIIIII I11\�\\\� \v v� I I I �\ 1��\ �z� 1 \V A\\v v \ p I / I / / I I \ \\\ \ ` 1 \ \ \ _ \ \�\) J ,\ \ \ \\ \ \\ \ JOB NO: 7812190186 CHKD: TM / �/ // I I V / > \\f\ v \ /»vv vv v_/ / / l 11 /�/ / �l IIIII / �- v \ V�\�\\V A\ v \v A \ 1\ >1// / v� \V \VA vv\vv v /��//A//�lll\\�I11 /�A ov AIA (\\r�L v-- vy� �/ / //l/ll ( -//lI I IIII 1 V\\\\VAVA\vv�VIIVA \\VA\VA- vvv V\ V �. � _, A�� AVA\ vv v / 53 / ///_ \ \ / 1 I \ \ \\ \ \ \ \ 1 ¢ Q (� \� \ \ \ \ \ \ \ �® DATE: 12/18/2019 ENGR: CK � ///,/, ///// // --520- _ _ `� II ) (� // _ ,� \\ \ / // / _ / I I I \ \ �\� \ \ \ \ _ \ ¢ \� \ J NOT FOR / ////\/ /�/I ✓//_\�\ -�/ IrII�J\\ill \� -/ \ �\ \\\ �-// //lI� / \ i 11\ \ \ \\ \ \\\\\\\\\, :: �\\\\\ \ \ \\\\ � \\\ I >\\\\ \\ / /// /'/ I / - \ / // / 1 \ )) II / / /) \ / ) I \\ II I\ �) \ \\ \ \\ \ \ \ \ \ \ \ \ \ \ \� \ / > > / I \ FILENAME: DEMOLITION PLAN.dwg / / / \\ -- - �l \ \� // / ,i/ 1 \�� \/�l///, l I 1 \\\ \ I I \ \\ \ \\\ \\\\\ \ \� \\\ \ // //� \ APPD: CK II \- - \\ \ \ \ \ \\ // - _ / CONSTRUCTION ��/// ///ij//�///I J I \�\j/�//��\\\\ - \ /j �^\1�\ - / ,�- /// 'SF \\��_ �\�:�//I \ \� '� _ / //III/ I I I \\. � \\\\\\\\ � � \ \\_ �\ ¢ ��.� \\\\.\\\\\ /.� /i//f!_-/ ./ DWG SIZE DRAWING NO. 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A� v V I I I I I I II �l I / / / � // I IIIIIIII\I\ \\ I IJ /) //� \ V //, - �v V �V ///j�l/// J /// / l // ��y vv c � ��Avyv vv A�(� II IIIIII I1IIs�� III�� `I /IIII �/ / I / ////%il II� \\V\ I \/ %/ / \ \ // HERE TO CULVERT UNDER �� - \ \\ 1\ I\1 i \ /�/� / /( / / ) / / / / / _ \ \�_ __-�_ \ \�� \\\ \ /✓ I I II I �- (r ( \ / ( //\/�I) I )Ill\t\ �l\\ \ � � UNLINED PORTION OF INDUSTRIAL LANDFILL / ,� - v )v�\ v v/ I I IIIII I� � I ( \V / / S // �// �// III �A O �r \ V / DUNNAWAY ROAD i \ \ I I ) ) / / \/ / / / / / \ l00 I I I \ i I \ 1 I I I / / I I 1 �l �� J / / \ ) ) �(( Il ( /-\� �- \\\\� -� J / (z I 1 1 \ II / ///i// I I�- \ / ( �- \ // / / I I I II / I / / � `��...�- � � / // /\/III / / /i A v v I v y i� �/� A 1 / / // !�� ♦ I� ( I I / / ( - o - vv t �� vv ® 5eo I I I 1 I I 1 �\ c \ I / I I I ((/////� III - - - C) �/ y�i % / // V \� 1 / - - \� //// \ A I) / // �j/ / Qo o II\ \�1 VA \\�I I I / V I I l ( I \ \ v v V \ _�A\\ / �0111111 III \ /\\� y z� �� 1 �� III I I �/ / \/ /// %%A \VA\V VA\\��(I LINED PORTION OF INDUSTRIAL LANDFILL -I / / / ° V \ \\ \ VA V\ V \v \ \ > > ,�� VA\ \VA \A�� L� o UNLINED PORTION /� , l �_ ,% \ \\ \\ \ \ \ \ \ \ \ \\/'/ III I /y /// %/ //// %/////�l/ j i PERMITTED LCID LANDFILL LIMIT / / �y 1 / % J I I / / G, \ 40 \ \ \1\ - � \\ - / /� \ \ \\\\\ - �� - - o / a/ ° r (� - - OF INDUSTRIAL LANDFILL j ////�/ //////// / ///, /// % / I \\ I I \ \ / / //�ro \\ \ �\ \�_ �� o\\\ __//_�� I/// / \\\\\\\\ — — / //�jli// (�} / I \ --_ i�%_� /////�//////��/��- // / _ ) / / 1 , / / // % ♦ j\ GI �l v VA, /-- A�� _ / A V\ // / l �i- �// /////��/�i i ��i AREA A CLOSURE EVENT 1 LIMIT M�M / — — �� \ - / /� \ \ �— _ _ \\\ \ \\ \\ /j� �� Ill // (/ / \ \ \\\\ �\ _ _ — / ✓ / `'� _ — — / / // /� �� EXISTING OVERHEAD ELECTRIC / l = : _ �_ \\ ( � �,/ C%= � �� \ \ \ \ % //i I \\ \ �\ \ \\ \ - -_- _ — _ _�/ / / / _ _'/l 111 /� j / li /i l - - \ I ( DUNNAWAY ROAD /,., -� \ \\\ 7 // l I �- /� i \\ \ \ \ // /�� ) ��\ \ \\\\ _ _::� - _ / o /\ f i // - i \ ) l l / /��i ///�( - /, i- ii = (I �r� _ - - �-,\\\\ \\\ „ \ i�/- \ �/ \ \� l /%� >/ / I \ \� �o�/ l\1 j\�� ,�� \ I,1 \ \� N�\�<� \\ = = / S / - I (llrlll (�(\ \ (/L %/%i�� - _ _ \ / / 5 i/� a_ _ — _ _ — — \ \\ // /� 1 DMM WALL \; - \ \ l V% %'"% // ��' i�� \�\ 4so // / l �- \ )II \\�� /� \� it \\��_- \ \��// 6 \IIIIII \\\\�/�- i//�%/��I�\o / �/ \\\\ I \� / /i //ii%i/ \/ o /� / / / oo �- �i 11 \ ( \\� ; _� — _ / i - \ \ \ \ l / /ice/��j_ =_ ; _ �^ /� "/�'�\l \ \ I I /I �( Z5r-/ (I //(//// //�%\\_ /41 / \\\ �\ o / // / _ _ \ I \ - /// I I �/ �\\\ \\ / �_--_ _,90�\ )I \\� / /^\ 1 1$� $��-� / �` LINED PORTION / \ \ > ((� //\-� I / �\� l I �\ 440 ( ///// I - , N I \ \ ///\ \\ \ \ ��s �`�!� � > / 1 ~ \ \\ �� 1 I \ / /'� % \ / • j /j / �// \ \\ I o I \\l\� \\ 1. ////--L��J/ \\ 1 \�\\ \\ I l\�� _ — — �l �\\\` / /// \ (1 ` - � -� `_ ��/ / �) lk=;fir- �I 4 / , _- / / \ 1 l�' I 1\=\ \\ \ //�\� - \\ - I 4s \ - - _ =%�g0 I \\\\ \-% / \\\ \\\\\�\\ \ -) - / r ( I OF/INDUSTRIAL LANDFILL / 1 ( III II\\\ \ / / // / l 4�o ESTIMATED BOTTOM OF ASH CONTOURS \ \ I _ / l Q o \ \\- - _ _ _- 1 \ \\\- �/ / / 1 I I \� J /// / / / - / / � / � 1 � 1 �\ �\ \ \ \ /i - III I I / \\� _ � � \� (/) ll// Q> oo \\� -- = I ( \ �\ \\\\\� \\ \` l (( // \ ¢ < I l ll / � _: �� / // / / / / //// / �� _�\\�/� I I (�\�,__ \ O \\, = ems\\\ _ //\ \\__ - \�-� \ li l , 1 /l �, ( IIII / �� / / %_-- / I \ 111 I/ ��I 11 \ )) 1/ \\\\ \\\ �� z �,l �� f /� �_ / / o/ it%_- \ -� \)ll I �� =\ IIII \I \� \ /\ ♦\� \\\��/i\\ \\\\\\\\- )1I I I I // \� I/ / /� // ,- - _ \( �� i \ ll� I((�� _ - 470 \\�� - �✓ \ \ \\�- -� _ �� \\ _\\ 1 /// 1( J� I\\\\\\��I//� \\ \� 1 / / l ( _�\\IIIIIIII//��J 111 ` i \ \\111(�� - \\� /\ \ \\\ \ \� �- / I I 1 0 \�/ )� / / �/ / �_ I — \ _ \\ l \\\\ \\\ \\\��_. -/, \ \\\ \\ \�__ �� \\ \ \� J— / �— —/// \ II I > %/// / / i // / / ( ll\ V )l/1 )IIII // /i�_�I)l\\� � - ( )1(\v\\VA1\V �� -�'vv vv \\� _w�v\1v v -__- II 1 `" vim, _ AV II - �/ v 1 — — \ \ \ \\ — \ 1 �1 �\ — /// \ ) \— / / \ / ////� 2Y i �� \ ( / \ I///jlll / // _ — — 1 / 1 p— — — — _— / \ \\ REFERENCES: \ 470 - �� \ \ - \ \ //// / / /� _ 1 �, / / i i/%�- \� (�� $\ \ \\\�l> _ \\ \\\ \�- \\\ \">\ _ - �� IIII \ \ ) \ \ r--- \\ / /// // /%/ WEST ASH BASIN \ (/ //// // ii//�� \ !/ ll \ \ \ \ \\\\ l 4so = ;-\ - \\\ \\\\ - _ _ �- // / / I I I l 1 \ - _ \ \ sl \ ) / - \ \ \ j/ f/ / \ l // / //\�i - � \ _ - I ( / \ \ \ 1\I )�)� - _ _ � - \ \ \\\\ , �� - -\ >1�� - / / / I . - - - - _ \ \ ( \s\\ $ %- _ \\ 1. APPROXIMATE LIMITS OF WASTE PRESENTED HEREIN WERE / (// / // //( /\( I APPROXIMATE LIMIT / I IIII/ l\ � \- ___ , \\ / \ \ \ \\\\I l I ll< \\\- _ _ ( ( V_/, // \ - __ <_ I \� w �� _ _ = r- / - - �� \ \ \\\ \ /� / / / / � _ � - \ _J / // - \ PREPARED BY SYNTERRA FOR DUKE ENERGY. ( %— --- - i--- \ \- \ \ \� 1 1 1\ (I \ \ \ \ OF WASTE PER IIII % �� -) \ 1\\\ \\ 1'1111I111I //I /\\\_ `� // - - \ \ \ - \ I / I I 1 \\ - \ \ \ / - \I ll / /i __ 4 ---- i\\\ if I \ \ \� \\ \ - __ _ \\ \ \ 550-�// / \ I I \ \ \ \�\\ \\ \ \ \ - ( I 1 \ -- l I (/�/ \� - J \ I I / / - \ �\ _ \ \ \ ti 1 I \\ \ \ \\ _ _ - - = \ \�\ \ \ I \ \ - - / / - \ \ I I 2. TOPOGRAPHY IN EXISTING INDUSTRIAL LANDFILL AREA FROM \\\\ \ _ __ / I I //� // - - _, \ \ - 1 ) 1 / // / _ `�- _� \\ //� -- - - _-EAST ASH BASIN \= \\\\\� \ \IIIII $\\ \ / / �) \ \ I \ / / / \ \\ \Ill III MAY 15, 2017 AERIAL SURVEY BY STEWART. OTHER �\�= SEPARATE PERMIT ( 111 II\ �/i�� / - \ \ _ � J / / I Ill l ) \�\� 1 �/ \ _ l - \ \ \ 1 //// i \\ \ ( — l / J > > // //\� �� iii— �\ \\ I (( / - — _ _ 490 APPROXIMATE LIMIT \-- — \ \ \ \ % — ,� / / / i $ I I I ) \ \ \\ II ll \\\R+ —` _ 490_ SET) / �j — \ ) ' _ �\ \ \ — — — — ` \- \ \ i i -� \ / i \ \ \ / / J)//i (//o / _ - - \ \\ I ( I / / - = - - ~ (=� \ \\ \\ \ \\\ \ / / / / // I / - / / o� / \ \ \ \I 1 TOPOGRAPHY FROM APRIL 16, 2014 AERIAL SURVEY BY WSP. \�� \ \480 -,/,1 \ \ \ \\\� //� //// - \ \ 1 I l - �l�i/ii/ /ll o II/ 1)/ / _ \\ I I (/_ - _ , \ - /� \ \ (� // / ) / y6 / \ \� \\ \\\\\ / / / - \ \ ( _ _ 500 OF WASTE \ > 1 ( \ \ \ \ \ \ - // / / / / / / yi\y ♦ v��o - y I \��\ VA VA w �` v v V A\ / AVA \/�j /// A/ - \ \ I I 1 I / - /// \l �/// \_ vv y\ �� \ \ V ( I (( v\ �� - - - - - v�� - V A \ v v \ = / / / 1A III l //ram// ;Il(///,/�l/! vv v v \VA\ _w\�/ v� _ �A \\ \v vvvv - ll //// / / // �(l / /�-vv\�AA�VA\///�/ / // //"— - A \� V AV \Vl ,lei'/�-510y-�\V �� -A\\�/ice ____� �\ I\ \ / / ) \ ( / /-'vVA V A //// //�// /// /� - � \ \\ \\ \ \ \ _\1 \\\\\\ - \ \\�// \\ \ ��/6, _ V\ \ \\ \ \ � /-�( (I \ / / / / / / \ / l \ 1 , - � , // 5�0, \ �\\\\\ \\\\ 200 0 200 400 FT PROJECT NOTES: /�ll Il //\j/ - \\\ \\\ \\ ��\\ \ \ \ I I 1 \\ / v 1 \ \ / _ A \ I Aj� - - _ , \ \�c�,\ I l \ A \ � � ( / // / - \ / -_ o I l I A Ill _\\� \\ ( \\ \\ 11 I \ l r-520 �= ��I / - --� \\\ \\\ \ 1 ) / / @ \ 1 S / / "� II I 1, l / \\\ \ \ \\\ 1 �/� - - \\ \ I - - - - \\ \�\ \\ \ \\ 1 I / /� / l 11 \ \ \ I ( / / / \ I I I I SCALE: 1 -200 1. CONCEPTUAL WALL GEOMETRY IS NOT A DESGIN AND IS FOR CONCEPTUAL COST ESTIMATING PURPOSES ONLY. _ - - // // // /// / I ) \\ , I I 1 \ \ \ 1 l � - - � _ _ \ \ �\ J / �/i - 1 1 / `Z' / II -� Il ll /l / /i��\\\\ IIII I\ I I1 \\\\\\ _ \ \\ \\I I I ///�\_- \\ / / / / //� ��1 CONCEPTUAL WALL GEOMETRY IS BASED ON ASSUMPTIONS DEVELOPED FROM DEEP MIXING METHOD (DMM) DESIGNS =- \\\ II I/ // /// / / l I I I \\ \\ \ \\ I - �\ \ \\\� I I I \\ \\ / /�/ / I IIIII TITLE VA I �I / v \ \ \ vv vvvAv \ ( \ v V\ v l l l // I 1 -�v V v \ I �I �/ / / ) \IIIII IIIII IA \ 1 \ v , vAvvvv vvv v V - vvv \ � I 1 1 / 1 - v vvv vv vvv l / , / / I FOR SIMILAR SITES. NO ANALYSES HAVE BEEN PERFORMED. IF THIS CONCEPT IS SELECTED FOR USE, SITE -SPECIFIC vV A \\\\ VA III 11 II( (I I I / / I V\V A \I 1 \\ V A - v� \\VA \\ 1 I 1 _ - VvA\�VAVA\\\I I 1 IIIIII (� �� - , I III CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS � ", \ \ \ \ ll I 1 \ I � � ) I I �\ \\ \ , \\ \\ \ \\\\\ \ ) ` / \/ \ \\\ IIII l - - \ \ � � / ANALYSES WILL BE PERFORMED. \ \ \ lI 11 \\ \\\ \\ - III �\ \� \\ > ) \ \ / - \\\ I/ l l - \\ \ \ �I I / V�\�A \�\\\ I11�\\VAA vvvv\v- v / I �\v A vvA \ ) / �/ / //A// ) 1/ ,/ //�,�°/ - __ v vv\\ 0V , /II I - v�\�\vv III I III / / �/ / \1 woo EAST ASH BASIN CLOSURE BY EXCAVATION v V\ \\� v v vv vv v v V\VA / / \ � - _ - _ 1 1 I I y _- , 2. APPROXIMATE LIMITS OF CCR BOUNDARY EXTRACTED FROM BOTTOM OF ASH AUTOCAD CIVIL 3D SURFACE. BOTTOM v \VA\\\\ V A I I VA �v vvv A\ vAv AVA \ VA \\I / / // /// / //// / / //'/ v \ \ V // // III A VA\\\A vv v �VA\V v/ v\v A v yvv yvv V A \ I / / /// /// /// / / v \ \\ / / /// � / - \v vvvvv \r I ( � I / ROXBORO STEAM ELECTRIC PLANT \ \\ 1\ 1 \\\� \- \\ \ ( \ /�/ / / / ----\\ \ \ ��// / / / /- \\\ \ I I 1 I I OF ASH CONTOURS TAKEN FROM AMEC FOSTER WHEELER, WASTE STRATEGY ANALYSIS, ROXBORO STEAM STATION, \ \ `I I \ \ l ( \� \ — \\ \ \\\ \ I / / // / / o— \ \ / / — \ \ \\\ ) I I I \ I \ \ / \ V Al \ ) \\ �I I / / v V A \ — / / / / — \\ ( — Environment & Infrastructure Solutions \ \1 III �// ] \) /%lI 1 \\ \) I \III II ll / // / / /� \ \ =�//// _ \ \ \�\ I I \ \ \\ \ \ \ _ 4021STIRRUPCREEKDRIVE,SUITE100 PERSON COUNTY NORTH CAROLINA MARCH 25, 2015. A I \ I I 1-_= A )�/ I \ ( \A I V A \ \ \ \ \ I I III //// �_ !i/// l((�\I I /I 11 /// /// / --_\\\ / / // \ \ - I I III I \ \ / �,—�\\ I�� , 1 I / / 1 / 1�� _\ \\�I 111 l �// l l // �/ / / l ( _ \\ � j'/ / / \ \\\ ` \\�\1' \ \\ \ \ \ \ \\ \ \ l I L DURHAMNC29900 FINAL ASH GRADES PLAN III I \ I ( / / // i / — \ \\ I I I l I / l \ \ / / � // _ \ \�\ \\\ �l\\\ \ \ \ \ \ \ \ l 1 TEL: (919) 381-9900 3. EXCAVATION WITHIN THE LCID BOUNDARY WILL BE AS NEEDED TO PROVIDE STABLE SLOPES DURING ASH EXCAVATION I I III 11\ \/ // I �/ /\ -- / \ \\I � \ \ I \ \ \ I I 1 \ \ I// / %/ \\\\\Il\I 1111 / I I///// // I I / �// // / / \\ \ \ ��\ \\ \ \ \\\\ \ \ \I I 1 FAX:(919)381-9901 ACTIVITIES. I l Il III )\1 �/ / 1) // / / / j / / \ \\_ \\\ \ \ II I I \\ \\ /// \ -� l )- \ \ \ \ \ \ FOR / /� 1� (�/ /j / \ A�\ �I I IIIII I I (� I V A v / v _-/ / // / \ 11 )� 1 1 A �\ \ \\ \ \ \ \ \ ucENsuRE: ISSUED FOR REVIEW / - I (Il � \ \\ \ \ a / // l I ( / �% /l i / / j / V A A \\ \ V AA I IIII 1 11 l V A \ / / // / — — — �_� ) A V A \ \ \ NC ENG: F-1253 (I /I // I 1 / // /!/II I I i //\/ / \ \ \\ \\\\ \\ \\\\ (` I I I I \ I \\ \ \ \ \ \S \ ( / _� \ ) �I \ Z I \ \ \ \ \ \ \ \ NC GEOLOGY: C 247 / II Il l/l/�/�\\ :� /) I I l /ll / �- \ \ \\\\\\\�\� IIIIIII \ \ \\ \ \ \ ,vo \ \ I / I ( \ - \ \\\\ \\\\", \\\� \\\\\ \\\ SEAL I/ ) )/ ( / / I I I I (1 / \ \\ \VA VA� v v �V I I VAI \ \� A\VA A v v v v \ v v A 1 v v / (\�))/ L< v> L v� \ � v vvvv � v �` SCALE: AS SHOWN DES: BBC //�l//I L � -/ /(II III /II \ \ \\ \ \\\�--\\\\\ \ \ \ \\\ _w \ \ \ \ \\ I \\ \ I ¢¢Q\�� \\�� _� \--) \\ \ \ \ DUKE DWG TYPE: DWG DFTR: BBC /// I �- \ \ \ \\ \---\ \ \\\\ \ \ / \� v IA1�11� 1 1 1 \ vv ) l \\ 11 IA�-A) Av v�A v vv v vvv \ l vv��vvv vvv I > > � 1vvVv �� _ = I l/l l I I \ _ I I I I )III \ ) \ \ \ \� \\ \ \ \ \ \ \ \ \\ \ ) ` / \ \ \ \\ \ / / /\ / / \ \ \ N F �G JOB NO: 7812190186 CHKD: TM \�\\�-/ / \ - - II\ ( �\ \\\ \ \ \\\\ \ \\ \ / ( \\ \\\\\ \/// //i- / / / - v - / / / III I - I v vv vv v v v v v V\ \ - ¢ - -\� \/ I \ - _\ I _ > > \ \ \ \ \ \ \\ \ \\ \ ``�/ / ;i / NOT FOR \ _ \ \ \ \ \ \ / DATE: 12/18/2019 ENGR: CK -�� _ vv / / III\�/ /// i \ v �v\ ///) V I \ V �/ // �/ / — _ — — _ --- — _ _ _ �J_ _ _ _ _ _ �/ / / // / / C \ I \ \ \ \ \\ \\ / / // — — — _— // FILENAME: FINAL ASH GRADES PLAN.dwg APPD: CK \ _ _ - - - Z = _ - - _ _ _ �/ i \ // / / // / /� \ \ 1 `� \ \ / 11\ \\\\\\ \\\\\ \\ �// / /� / / / / \ \ / CONSTRUCTION DWG SIZE DRAWING NO. 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A 1 I �/ - \v� l//,//,_ j)l/ l//� -�_A �y \ ; \) , I/ /,//-, , , //,, \ s�� ANSI D ROX C999.001.008 0 1 \ 1 / //////// // \ ///, \//// /// \ \ -S2� REV 12DATE19 78OB9N086 PROJECT TYPE DES DFTR CHKD ENGR APPD ISSUED DESCRIPTONIEW 22"x34" INCHES 1 2 3 TENTHS 10 20 30 4 5 6 7 8 9 10 QUANTITIES TABLE DESCRIPTION APPROXIMATE AMOUNT CAMA LIMIT OF WASTE AREA 71.3 ACRES CAMA LIMIT OF WASTE ASH VOLUME 3,240,000 CY ASH FILL VOLUME 0 CY SOIL FILL VOLUME 1,938,400 CY 0 F Plotted By: Moore, Ben Sheet Set: Roxboro East Ash Basin Closure Plan Layout: FINAL ASH GRADES PLAN December 17, 2019 02: 14: 32pm Q:\Duke Energy\Roxboro\7812190186EAB Closure By Removal - Hybrid\Plansheets\Issued for Review\Rev. 0\FINAL ASH GRADES PLAN.dwg 2 3 4 5 6 7 s I ROX C999.001.009 REV.0 - _ ( I /� / / /� v,/// -/- �� oo� o s �\� \\\\ \\ o \ / ~\ 1 //� /ii/o/ 1 I \� �� \_� I // / / / // \ - _ /� //(�/ 3H0 / �� ✓ I /i//%��-�� \\ e, , r__r - __� \\\\\�\\no��o lllfl J I \ ��\\ 1(Stl / �i/ / l� \ -ram ` ��== = _=� //� 3H / ' III-� ,�%/�/� r /\ `��r' , - - __- _ \ \ e o \l1 11) IIII( �� \ \\\\1 >>C 1 / 11 I ��- _ �� / \\\ o �/ j� = ___ =--__ = _-__�\\\ \\\\ � ;�ii 1(\\\\�i�/ice 01\\ \\\ >�il(I I llll'�l \ _ _ \ \\ //- - _-� larl/ / /�- ii \ ) \ /% � - � - ) 7 ��\ \\ \\ \ \\\\ \ i�� - — J �� Y )�\ \\\ \ \\ - / 11 / -� \ /�--_ /i/ / iii%i/ii / �/i /�\ \ ) �/ Y' �'�S \\ \ \ \\\ _ _ \ \ \ l 11 /i/ /� - -� \� ( - _ \ \\\\\ - �� \\ �r� �\ \ \ \\\\\ \ III l \\\) �// \ IIII V / \ o _ s ��r-- \\ „,� \ I I 1 p OHE I i //ice//Gig/ i ///. / # \ \\\ \\ I / \ //i \ _ —� \\\\ \\\ \ i/ �� / �\ \\ \ \� \ \\ 1 soh \ / 1 / I I �p �/ ////� // /. \\\ \\� / // / _ _ - \ / _ ___�� \\` \ \\\\\ \ /� \ \ \1 --,\\,\\\, \\\� \ �\\\\\\\\ SUBSTATION IIIII I \ / i1111dI ��R2 ; //�/ ///� / / 1 \�\ \ I / / _ ___�- �� \ I I - = �\ \ \\\\\ \ IIII - Z� ��(rr \��0�\ `�� \�\\\ 1 ✓ v'w 1'"� Z' EAST ASH BASIN �i ' �''o i/%i%! ii / i i - / / / \\\ o\ \ /1 // // %//� - _ _ __ _�-�- _ _,� -, , � �/ - - \�\\\\ \\�\\ - �� _ \1 \ \ i t ^ �J-��\\\� �\\ \1 �\\\ \ \� \\\I �- /� I)I/ Il Il �/ // eon//E \\ n \\ / // //� - - - - - Illlll l�� MAIN DAM \ / /i /-� // / //i \ \ / / / — — - �- / - I \\ \\\, \ \\ I I I��- �� -\ �\ IIII `\I ' - \ \ \� I IIIIII v i \ // / ///- " /// v � _ y� � - _ / � vv vv w vv v J I � _ � _ vvv � 11 �� r- - _ v v 111 IIIII /, A )�� vv \ v l��\\ � /%% °o�/�� _ vvAvv� /\rl� //// / / �- _ _-_,- vv v Av 1 I I 1 wvr �� A I(1IIIII /�\� l � III \� / i ��/i/ ---- --_ _ \ \\ \ \ J VI /� >� \ \ �\IIIIII IIIII \ _ �p o _ _ ✓III \ /� \ \\ \ ////� \ > \ / //l/ l/ ///r // �,__- _-- _ _ �r\\ \\ \\C I J / �111I11 IIIIIII �� - / h I\ l�I y //� == __ - ��' � I I \ o III�,11` IIII _ _ I I I I \ IIII I \ // A \ �\ �� // // //� / / �� _ �,- _ __ _v( _AV A\V A\ //// v ) 1�IIIII��I, IIII L ) / V l� vv A vv // /% i-�s �i / '�L /i/- _ - v A\ VA \\ \V'�' \ I Illllll _ / / )/ I� I I I ) \ i�i/i/ //- /ice l��o / 40 — \\\ \\ V IlijIl /III v-///// l (� / // //// /j / / /�i/// ��-_ --_� _-=___�v v\v \ \� v /IIIII�IIII IIIII �� / / \ lll�l ---_J z s �' /// // // / / / -4-_-- _ , _ — �v j \ v\\V v n I ) v /� �I IIIII II I�/ I / I / /� -� // / _ --__ ___� vv v vV v \yam v I r \ / /�/rill III �IIII��v, / �_ / , // —=_ �lI N �! 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APPROXIMATE LIMITS OF WASTE PRESENTED HEREIN WERE I \ O % // �� /— — _ \� \ \ _ — J /� � i— � _ ----- - - _ _ % � ` — / / \ \\\\\� \ — \ \ — � � l I \\ \ \ \\ ice — \ \ \ I \ \ — � / / �� \ \ I I I I OF WASTE I I �, //i�� l ) I Il / / - �= / / _ _ = \ - _ - � �\ I I \ � / �) / / \ 1 PREPARED BY SYNTERRA FOR DUKE ENERGY. \ \ - I I 'I I'1 I ( \ \1 �/ \ \\� \ l / - - % / /J/)/�))/(/ _ \ II I -- \ \ \\\ \ _ �� j / / / / I I ) / \ \ 111 II 2. TOPOGRAPHY IN EXISTING INDUSTRIAL LANDFILL AREA FROM \ \ o\\ \�\ /////// l �i//,// �lll / l l \ \ 1 ( ( - \��_ \ /��) \\ / \ \ \ \ \ \ \\ �i - \ I I / �� / / // / //� \�\\\\ \ l (I -- \\� \\ - - = % �� - \ \ \ \\ \ \\ \\ - I/ I / / / / / / J 1 / / / \ \\ \ \\\\\\ MAY 15, 2017 AERIAL SURVEY BY STEWART. 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( I 1 \\\\� _ / / / /� A / / \ \V A — AA J \ V i _ _ 1 � � A I / / /� / A I \ / _ �\ ( ( / / / ,i ///// l l / \ \ \ \ \\ 1\ \\\\\ \\\ o ) ( r / — —\ \\ \ �_\\\�\\ \ \ \ / /// \\\ / / / / / / / \ II I \ -� } I I \ ( �J /'� / //%/,�%'//// �// // // / / o \1 \\\\ IIIII \\\\ I I I =-/ _ \\ )I I/ /� ---- \\\\ �' �/ // e 1^\ \\\ ( I I(�/ 11 /� / \11 I \ `_ % / _ '�'-4 0� � 1 I _ i // / - I \ 1 \\ \\\\ I - �/- - \ � \\\ III �� __ �\ 1 I / t ' /�/i - \� j 1 1 \ / / III I -- r � \\\ y\>I I I\1\I 11 /%" __ 111 11 / \ k \\ \ / 1�II \ \ \ I I - � - \ ( /�/ /G�� // / / 1 \ \ \\\ \ I I / / \ \ \ J J SCALE: 1"=200' = r -�� r _� -�) 11 ) I IIII I \ / / /�� // /�/�/�i ==_ _ I I�/j// //// / �/ \\) I II I III 1\1\�\\\\\\\\\ \� I / /� �\ \III I �- _�\\\\\\\\l 1 / // �0/ %/ %ice 1 I I I /// _ _ o / �\ v v \\\ \\ \ III \ I I TITLE �\\\\r�_ \ �,o o = ,-\IIII\\IIIIIIII I I\\\� //iij;%%/�;,,,- ==\\\\�� IIhII//(II //' \IIIIIII I�\ \\\ \ \\�\\\\\\\\\, -�-,� \\\\\\III III / \\\\\\�\ ( II l II \ \/ / I11 III 1 II \ \ \\\\ /�/ I \ / / — — IIII �� _ _ _ 11 1)1 I I I(I I �\� \/�/�ii/ice ^�\\\\\\\ I1v,1 \ � Il , I I ��\\\\� \� \\ \\\�\\\ N \ / �/ \,.\ \\ III/� // _ — — \ \\ \\\\\\�I I 11'I II // �/ I 1 CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS / �, I I v r << �� —=;� —_— v vvv I vv vvv Iv�vv vv > > >�� \. II l , vvv v v I II / / �1 ( II �-- I52- \\ I I o\ r \\ \�\I/I- , \\ \\ \\ \ \ o \\ \ II/ )% / - I I 1 IIIT �1\ \ \ / ;%� _ �- - - \\ \\\\\�\\ \ \ \\� � �� \� \\ \\ \ / /%/ / wOOEAST ASH BASIN CLOSURE BY EXCAVATION \\ / / �/ l/III //— _ 30 \ \\\ I i )I _\ \\ \ \\ 1\ \ \ \\ \ \ / \ \ %/� / // % — \ \\ \ \ \\ \ \ \ \ 11 / / / //- r \�\ � ( ) I I / \ \ //i / , _—_ _ \\ \ \ \\\ \ \ \\\ \ \\\ \ / PROJECT NOTES: ROXBORO STEAM ELECTRIC PLANT \ II \ I III/ llli/ / \\�� \1 1 I \ \ \ 1\\�r�///� - _ - - \\\\ \\\1 \\\\�� \1\�\ �\ \�\\ \ \\ \\\ \1 I / / // F IN( \ III ( \ / / � \ \\1f \\ /( 1 \ \\ h\�/i�//�-_ --- \\ \ \\ IIIIII7-I )�7//>>�Ji�/>l%))\ l� '\�\\\\\\�I\\III�I111 I Environment&Infrastructure Solutions PERSON COUNTY NORTH CAROLINA I I I III I / L \,) �/j I I \ \ \` //// \ \ \ 111 1 III �=_ _ // / 1 \� ),/ / 1. THE CLOSURE BY EXCAVATION AREA WILL BE GRADED TO DRAIN THROUGH THE 10-FOOT DIAMETER CULVERT UNDER 4021 STIRRUP CREEK DRIVE, SUITE 100 \ \ \ 11 I \\� \ I / / / \\ \\\ �I SI I ( \ \ \ 1 // i /� \ \ I III III 1` /// // =� /// �i — \\ 1I� _��\ I I I / Il / DURHAM NC 27703 \ \ II \\\ \\ I / / �, \\\ls¢l 1 I \ / \ \\\\\\\/ // /� \ \ I I I I II I II / I /� / _ / \ ILL \\\\\\III / DUNNAWAY ROAD INTO THE WEST ASH BASIN (WAB). TEE: (919�3s1-99oo FINAL SURFACE WATER MANAGEMENT PLAN �v _ v��\\ 1I s v `�'s / I IIII v /�(I /// V/ �� \ \IIII I /� IIII\ \ II I / I I \ / / / / \ \ I I I III I I \ \ / / I /// // / / / / / \ ` \\ \ \111 I 2. THE CONTRIBUTION OF SURFACE WATER FLOW FROM THE DRAINAGE AREA UPGRADIENT FROM THE EAB IS FAX: (919) 381-9901 �; r I� I I I I I I p )o \\ \ j c \ v/ / - A\ V l ) I I ill A I/ / A\ I I I I I ucEG: F-12 FOR 1 I I I I I \\ \ / - �\ / // /% / of I /) i,// / / / \\\ \ \ J I CONSIDERED IN THE POST -CLOSURE STORM WATER DESIGN ANALYSIS. �I III I I //, �o � ,\ \ / _ \ \ I / I I I / / / /� I / //i (/ // // 1-1 / \ \ \ \ \\\\\ I I NC ENG F-1253 ISSUED FOR REVIEW �% =,�I Il I Illl I I I �\ \ o 1 \ \ / \\ \\ \ _ / / I /(1 I / //1 I ) ///i\ \ \\\\\\\' I I I 3. DURING CLOSURE OF THE EAB, SURFACE WATER FLOW THAT HAS BEEN IN CONTACT WITH ASH WILL BE DIRECTED NC GEOLOGY: C-247 %% �/ I Illl 1 I \ \ \ s ( \ I / l�-\ \\\ J 1 ) /lj 1\\ // ll I / / \ \ \\�\ �\ II /�//�/// /////// )II I I \\\ � ) ) I \ �.\nl \ \� \ � -_/ \ \ / ) /III /// ///l \ _ // /((1 I I I 11 r- \ \ \\\\\ \ \ \� �I I I THROUGH THE CULVERT INTO THE WAB FOR TREATMENT PURPOSES. SEAL SCALE: AS SHOWN DES: BBC / / \/ \/ / v \ v 9s' /»vv v v\\ / / I / // ( 1 II I I / V A\\ v J /�//�//// //l/// 11/ I l _- _ I 1 � 1\�� - - �� // \ \ \ / / / ///) / _ / / / I I III / I l \ \ \ \ \ \\\\�\��\ I 1 4. AFTER COMPLETION OF EAB REMOVAL VERIFICATION, ALL EAB SURFACE WATER PASSING THROUGH THE CULVERT Ill_ - / // j /, // �// ///��:L _ - / I ,I, ��1�� \ //�i� \�� \ �� \\ / /�// / //� \t - / / I / I \ \ \ I 1 \ \ \\\\ \ \_ _\\ WILL BE CONSIDERED AS NON -CONTACT WATER AND WILL NOT REQUIRE FURTHER TREATMENT. THE NON -CONTACT DUKE DWG TYPE: DWG DFTR: BBC /�/ / / ////� I j� _ \ - � .G�o\\ \ _ _ /i/ � \\\ \ / / �/� _ J� \mil I I \III)/ / I \ \ I \ III \ EAB SURFACE WATER PASSING THROUGH THE CULVERT WILL BE TEMPORARILY DISCHARGED INTO THE HEATED // //, /x //// %// I \ v / : // y e vv v � l) ) � � // v / 1 v v 1 I I I \_ _ / / /� / // \ \' I' \� /// / / / ) I o I I I 1 \\ s� - / /// l I \ \ \ WATER DISCHARGE POND. JOB NO: 781219018s CHKD: TM /�,,/�/ I\,//// �\\ \_ \ //) 1�4�\ tiF / , -, IIIII � ENEr'Y® // // / / /// I \ / // //1 \\\� \ - I \ / / /�l l // / � / I / \�- �/1 I \ \ \ \ // IIIII _ 5. AFTER COMPLETION OF WAB REMOVAL VERIFICATION, THE NON -CONTACT EAB SURFACE WATER PASSING THROUGH NOT FOR DATE: 12/18/2019 ENGR: CK I II/�///�/// / /� ��j� "�\\�� — — ll \\ / // H / — ��\ \ 520 y - __— — _ I II - - \ J - _ - THE CULVERT CAN BE DISCHARGED INTO THE WAB. APPD: CK I // / \ \ I I 5 / - �� \\\/ � '— ' - - J� - - FILENAME: FINAL SURFACE WATER MANAGEMENT PLAN.dwg l�il��l I 1 I I 1 __ // \/l //�\\\\\ �\\ I \I 10 I \ _ - = _ —_ _ — — _ CONSTRUCTION 11l l l �/ // l//l ljll%\\\\ \\� -��\\ ((I (\ 50 I ( 11 1Qy\ \ \\\ , _- _ \\ \ / —� ( I I / // \\\\�_' 1�1 I I III l J \ \ \ 30 - \ I // / _ / l IV l (( �_ j//////�// v� v� _ �) I II II 1V A\�v�� \ vvV \ b�\ I l ///ice / l///��v A�11 \\II(( / / / //// \vvv-/ _ IIII \\ //I 1 0 v H\ 1 v\ 1 - // /////� V� v� / F�l ,` 11 \ V AVA �� o v /j l l/ / l l /// / i -vvv � \ \\�\\\\. AA %/�i%A///ii�l//, yA\ , )l lil,ll ��\�1A,�\ y(1i 1!, � \vv 1�. A 4��—Z��/)/ lli//�%l l//ll�//,/ // , w v 0 12�1s/2019 7s121901ss // l / vvvv\ i/ / v / REV DATE JOB NO. DWG SIZE DRAWING NO. I REVISION ANSI ROX C999.001.009 0 DESIGN PLAN BBC BBC TM CK CK ISSUED FOR REVIEW 22"x34" PROJECT TYPE I DES I DFTR I CHKD I ENGR I APPD DESCRIPTION 6 7 8 9 10 ;a O X 0 co co co O C) AL O CD 0 F INCHES 1 2 3 (TENTHS 10 20 30 w 5 Plotted By: Moore, Ben Sheet Set: Roxboro East Ash Basin Closure Plan Layout: FINAL SURFACE WATER MANAGEMENT PLAN December 17, 2019 02: 1 5: 41 pm 0: \Duke Energy\Roxboro\7812190186 EAB Closure By Removal — Hybrid\Plcnsheets\Issued for Review\Rev. O\FINAL SURFACE WATER MANAGEMENT PLAN.dwg 2 3 4 5 6 7 $ ROX C999.001.010 IREV, 0 490.00 480.00 470.00 460.00 450.00 440.00 p` 430.00 420.00 410.00 400.00 390.00 380 00 F-1 GW(E) _ _ _ 77 _ - - - - - - - - - TOP OF WALL PRE -DECANTING GROUNDWATER MODELED SURFACE ' \ / APPROXIMATE WALL DEPTH MAX 94' / w z _ ESTIMATED BOTTOM OF ASH --- ESTIMATED BOTTOM OF WALL 15' APPROXIMATE 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 7+00 7+50 PROFILE A 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 400.00 390.00 380 00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 p` 420.00 410.00 400.00 390.00 380.00 8+00 8+50 9+00 9+50 10+00 10+50 11+00 11+50 12+00 12+50 13+00 13+50 14+00 14+50 15+00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 400.00 390.00 380.00 15+00 15+50 16+00 16+50 17+00 17+50 18+00 18+50 19+00 19+50 20+00 20+50 21+00 21+50 22+00 22+50 23+00 23+50 24+00 24+50 25+00 25+50 26+00 26+50 27+00 PROFILE A TOP OF WALL GW(E uvv�t)GW E GW(E) GW(E) GW(E) GW(E) GW(E GW E) W(E) GW E GW(E W(E) GW(E) GW LOCATION OF PC-1 CHANNEL LOCATION OF 48" CULVERT OUTLET PRE -DECANTING GROUNDWATER MODELED SURFACE i - - \ - - LU ESTIMATED BOTTOM OF ASH - - - - - 15APPROXIMATE ------------ BOTTOM OF WALL ESTIMATED 100, 100, / 0000 / 00000 _ I / V ` `r / ,1 -� 1 / t VICINITY MAP NOT TO SCALE PROJECT NOTES: 1. CONCEPTUAL WALL GEOMETRY IS NOT A DESGIN AND IS FOR CONCEPTUAL COST ESTIMATING PURPOSES ONLY. CONCEPTUAL WALL GEOMETRY IS BASED ON ASSUMPTIONS DEVELOPED FROM DEEP MIXING METHOD (DMM) DESIGNS FOR SIMILAR SITES. NO ANALYSES HAVE BEEN PERFORMED IF THIS CONCEPT IS SELECTED FOR USE, SITE -SPECIFIC ANALYSES WILL BE PERFORMED. (INCHES 1 2 3 (TENTHS 10 20 30 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410 00 TOP OF WALL \ W E GW(E) GW(E) MODELED SURFACE \ PRE -DECANTING GROUNDWATER ESTIMATED BOTTOM OF ASH_N / / 7/00' 15' APPROXIMATE ESTIMATED BOTTOM OF WALL 0+00 0+50 1+00 1+50 2+00 2+50 3+00 PROFILE B 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 3+50 4+041+11 0 12/18/2019 7812190186 DESIGN PLAN BBC BBC TM CK CK REV DATE JOB NO. PROJECT TYPE DES DFTR CHKD ENGR APPD 4 5 6 7 ISSUED FOR REVIEW DESCRIPTION LL 0 Ln uO cV I-] 50 0 50 100 FT L� N TITLE CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS wood EAST ASH BASIN CLOSURE BY EXCAVATION ROXBORO STEAM ELECTRIC PLANT PERSON COUNTY, NORTH CAROLINA F Environment & Infrastructure Solutions 4021 STIRRUP CREEK DRIVE, SUITE 100 DURHAMNC20 TEL: (919)381-999900 CONCEPTUAL DMM WALL PROFILES FAX: (919) 381-9901 LICENSURE: NC ENG: F-1253 FOR ISSUED FOR REVIEW NC GEOLOGY: C-247 SEAL DUKE SCALE: AS SHOWN DES: BBC DWG TYPE: DWG DFTR: BBC NOT FOR �, ENEnGY® 086 CHKD: TM DATE:JOB 12/118/2019 ENGR: CK CONSTRUCTION FILENAME: ROX_C999.001.012 FINAL SURFACE WATER MANAGEMENT PRO ewg CK DWG SIZE DRAWING NO. REVISION ANSI 22"x34" ROX C999.001.010 0 8 9 10 Plotted By: Moore, Ben Sheet Set: Roxboro East Ash Basin Closure Plan Layout: ROXC999.001.010 CONCEPTUAL DMM WALL PROFILES December 17, 2019 02: 16: 37pm 0: \Duke Energy\Roxboro\7812190186EAB Closure By Removal - Hybrid\Plcnsheets\Issued for Review\Rev. O\ROXC999.001.012 FINAL SURFACE WATER MANAGEMENT PROFILE.dwg F 530.00 520.00 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410 00 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 400.00 390.00 380 00 2 3 4 5 6 7 8 _ \ EXISTING SURFACE IN, PRE -DECANTING GROUNDWATER MODELED SURFACE \ \ PROPOSED 3HAV SOIL BACKFILL \ 20' APPROX E W(E) ESTIMATED BOTTOM OF ASH 15' APPROX PROPOSED 1:1 DMM WALL SLOPE 0+00 0+50 1+00 1+50 2+00 2+50 CROSS SECTION C 530.00 520.00 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410 00 3+00 3+50 4+00 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 400.00 390.00 380.00 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 EXISTING SURFACE 20' APPROX PRE GROUNDWATER -DECANTING MODELED SURFACE PROPOSED 3HAV SOIL BACKFILL ESTIMATED BOTTOM OF ASH \ 15' APPROX PROPOSED 1:1 DMM WALL SLOPE CROSS SECTION E PROJECT NOTES: 1. CONCEPTUAL WALL GEOMETRY IS NOT A DESGIN AND IS FOR CONCEPTUAL COST ESTIMATING PURPOSES ONLY. CONCEPTUAL WALL GEOMETRY IS BASED ON ASSUMPTIONS DEVELOPED FROM DEEP MIXING METHOD (DMM) DESIGNS FOR SIMILAR SITES. NO ANALYSES HAVE BEEN PERFORMED. IF THIS CONCEPT IS SELECTED FOR USE, SITE -SPECIFIC ANALYSES WILL BE PERFORMED. 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 400.00 390 00 X40000'e.", // / 1 IN _ ollou 1 V ` NOT TO SCALE 0 12/18/2019 7812190186 DESIGN PLAN REV DATE JOB NO. PROJECT TYPE INCHES 1 2 3 TENTHS 10 20 30 4 5 6 BBC BBC I TM I CK CK DES DFTR I CHKD I ENGR APPD 7 REV � 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 400.00 390.00 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 CROSS SECTION D ROX C999.001.011 EXISTING SURFACE PRE -DECANTING GROUNDWATER MODELED SURFACE \ 20' APPROX GW E W E G GN'�� r_wfFl PROPOSED 3H:1V SOIL BACKFILL ESTIMATED BOTTOM OF ASH \ \ 15' APPROX PROPOSED 1:1 DMM WALL SLOPE 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 400.00 390.00 380 00 20' APPROX EXISTING SURFACE GW E GW GW E PROPOSED 3HAV SOIL BACKFILL PRE -DECANTING MODELED GROUNDWATER SURFACE 15' APPROX ESTIMATED BOTTOM PROPOSED SLOPE 1:1 DMM WALL OF ASH 0+00 0+50 1+00 1+50 2+00 2+50 CROSS SECTION F ISSUED FOR REVIEW DESCRIPTION wood Environment & Infrastructure Solutions 4021 STIRRUP CREEK DRIVE, SUITE 100 DURHAM NC 27703 TEL: (919) 381-9900 FAX: (919) 381-9901 LICENSURE: NC ENG: F-1253 NC GEOLOGY: C-247 SEAL NOT FOR CONSTRUCTION 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 400.00 390.00 380.00 3+00 3+50 I Pw L� 0 LO LO N 0 Ln N TITLE CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS EAST ASH BASIN CLOSURE BY EXCAVATION ROXBORO STEAM ELECTRIC PLANT PERSON COUNTY, NORTH CAROLINA CONCEPTUAL DMM WALL CROSS SECTIONS FOR ISSUED FOR REVIEW DUKE SCALE: AS SHOWN DES: BBC DFTR DWG TYPE: DWG : BBC NF JOB NO: 7812190186 CHKD: TM DATE: 12/18/2019 ENGR: CK FILENAME: ROX_C999.001.012 FINAL SURFACE WATER MANAGEMENT PROAff.11 CK DWG SIZE DRAWING NO. REVISION ANSI 22"x34" ROX C999.001.011 0 9 10 M N O X J co O F Plotted By: Moore, Ben Sheet Set: Roxboro East Ash Basin Closure Plan Layout: ROXC999.001.011 CONCEPTUAL DMM WALL CROSS SECTIONS December 17, 2019 02: 16: 48pm 0: \Duke Energy\Roxboro\7812190186EAB Closure By Removal - Hybrid\Plansheets\Issued for Review\Rev. 0\ROXC999.001.012 FINAL SURFACE WATER MANAGEMENT PROFILE.dwg F-i 530.00 520.00 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410 00 2 3 4 5 6 7 8 I w z_ - � EXISTING GRADE J F- _ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - GW(E G (E) - \ \ \ - - - - - - - - - - - - GW(E) GW(E) E GW G E GW(E) GW(E) GW(E GW E GW E GW G (E) GW E PROPOSED MANAGEMENT SURFACE SURFACE WATER \ ESTIMATED BOTTOM OF ASH - - - - PRE -DECANTING GROUNDWATER MODELED SURFACE - --------- --- ------_- 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 7+00 7+50 8+00 PROFILE G 530.00 520.00 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410 00 EEv. 530.00 520.00 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410 00 8+50 9+00 9+50 10+00 10+50 11+00 11+50 12+00 12+50 13+00 13+50 14+00 14+50 15+00 EXISTING GRADE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - =� - - - - - - - - - - - - - - - - - - - - - - - - - _ - - - - - - - - - i \ - GW(E) G (E) GW(E) GW(E) GW(E) GW(E) GW(E) \ GW(E) GW(E) G (E) GW(E) GW(E) GW(E) GW(E) GW(E) GW(E) G (E) GW(E)- - - - - - - - - - - - - - - - - - - - - - - GW(E) - - - ---- --------- ---- ---- PRE -DECANTING MODELED GROUNDWATER SURFACE PROPOSED SURFACE MANAGEMENT SURFACE WATER L ESTIMATED BOTTOM OF ASH [-A--� 530.00 520.00 510.00 500.00 490.00 480.00 C 470.00 460.00 450.00 T N 440.00 O X 430.00 420.00 ` J 410 00 15+00 15+50 16+00 16+50 17+00 17+50 18+00 18+50 19+00 19+50 20+00 20+50 21+00 21+50 22+00 22+50 23+00 23+50 24+00 24+50 25+00 25+50 26+00 26+50 27+00 27+50 28+00 28+50 29+00 29+50 30+00 (� O PROFILE G O O N VICINITY MAP NOT TO SCALE INCHES 1 2 3 TENTHS 10 20 30 00v.vu 520.00 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410 00 00v.vu 520.00 510.00 500.00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 30+00 30+50 31+00 31+50 32+00 32+38+61 PROFILE G 0 12/18/2019 7812190186 DESIGN PLAN BBC BBC TM CK CK REV DATE JOB NO. PROJECT TYPE DES DFTR CHKD ENGR APPD 4 5 6 7 0 Ln ram, u) N O 0 50 0 50 100 FT L J� N TITLE CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS w00d EAST ASH BASIN CLOSURE BY EXCAVATION ROXBORO STEAM ELECTRIC PLANT F Environment & Infrastructure Solutions PERSON COUNTY, NORTH CAROLINA 4021 STIRRUP CREEK DRIVE, SUITE 100 DURHAM NC 27703 FINAL SURFACE WATER MANAGEMENT PROFILE TEL: (919) 381-9900 FAX: (919) 381-9901LICEN FOR NCENGSF-11253 ISSUED FOR REVIEW NC GEOLOGY: C-247 SEAL SCALE: AS SHOWN DES: BBC DWG TYPE: DWG DFTR : BBC DUKE m N F nGl/® JOB NO: 7812190186 CHKD: TM NOT FOR DATE: 12/18/2019 ENGR: CK CONSTRUCTION FILENAME: ROX_C999.001.012 FINAL SURFACE WATER MANAGEMENT PRO UIvg CK DWG SIZE DRAWING NO. REVISION ANSI 22"x34" ROX C999.001.012 - 0 ISSUED FOR REVIEW DESCRIPTION 8 I 9 I 10 I Plotted By: Moore, Ben Sheet Set: Roxboro East Ash Basin Closure Plan Layout: ROX C999.001.012 FINAL SURFACE WATER MANAGEMENT PROFILE December 17, 2019 02: 17: OOpm 0: \Duke Energy\Roxboro\ 7812190186 EAB Closure By Removcl - Hybrid\Plansheets\Issued for Review\Rev. 0\ROX C999.001.012 FINAL SURFACE WATER MANAGEMENT PROFILE.dwg 2 3 4 5 6 7 8 OH II 4094 �_ \ EASTERN\ //�7I EAST ASH BASIN MAIN DAM DISCHARGE CANAL J\�r vw\ 'Q\\ 7 \\\� NORHRAM SCALES \\\� A\\\\V�\ A\\\\A�A\✓ \ \��_\\' �\ A \ \� \ \ I\ V I ( \ / \_ PROPOSED NORTH 1\� � � II I STORMWATI BASIN EAST ASH / / ) \ ' )' �// // /// //// //%//r/// //� --- _ _ _ __ \ �► \\ \1\ 111 \\\\\\ \ 11\ / \ / �� — _ /// /i///%l� / >> 1��1/jll i A IIIIIII \ "� BASIN DAM j� Illl \ (SB-N) _ FILL AREA -a--_ 1IIII�l� I �_�/IIAw / l /lII VREA AFINAL A lll�, I111] III'II COVER GRADESC.0 / / / / 1 �I I II � w° ��/ /�/ � � � N // / � /e ,IIII// �/ /� � � � / � // / / � l/�/ l 111 / / //��//�//� — �' II II I I I � �I IIIII IIII III IIII I � I I I \\\ ✓ /,� //i�i/ // /�i/�/i�i / � / �/ / /r // /�rll/� ��l /// //lllll� /�////j/ AREAS I I IIIIIIIII — 1111 Illl�j (IIII I �II IIII II� III IS /IIIIII/_�// /// l Il I FINAL �j /� / / i I I II III III I III I �I III IIII III I IIIIIII I/III I I I�I I I I II GRADES IDISCHARGE CULVERTS � T ASH BASIN COVEREAS�/j� (2) 30"RCP �/ //� (1) 120"RCP PIPE (\ Iv — — _-- /// _/ �/ r / I I I I II✓—IIII III IIIIII 11 I IIIIIIIIII ( I I I�Illllllll II II I� I III v = _ /� �/i /i �/ / �/ / / / ✓ I I I I III I I I IIII II I J II I I l v — /'' /i _ 000000 �-- \ /�� ///�i��%�i�//�i��/�/ //i/i/�I_—_/ / I I I I IIII III IIIIIIII II I v I IIII I v— III I I / / I / _ IIIIIII IIIIIII B I /p // ��r �/ /i/� /��/ ii/�ii//��/i // /// /// �// IIII/ / — — + 1v /// //////� // IIII/ _/ I /�// _ �/ / /I I I I I _III III IIII IIIII III II IIA�III�1111 II I�I II I I II II 1I IIIII Iv v 1lv�� 1 I I III IIII \ � JI // / / /i �i /i /i / / /� / / /l—= I I II I / /j j/�/ / IIII I I IIIIII I I I 111 I I I IIIII 1 I I I \ �+ � �// / / ---/////s i�///r/��// // %/�/ //�/j/ %'��i // ��/%/�/i�////�%i%ce/��%///�i/ ce//�//i�/i�—�,i/—l�— _�/�—�/►—/_/_!___ __— —_—_�;��,I��I�I�IIIIIII I I1IIIIIIIIIIIIIIIIIIIIIIIII III��rIl�I/1��//11/1�1r _— --_ —_—�—_ _ I_=_ ___ —_ I �_��—I 'I IIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIII II I I \IIIIII I IIIIII III I IIIV I I I I IIIIIIIIIIII Il I11V I1 II II I I II IIII IIIII IIIIII I IIII I PROPOSED EAST STORMWATER BASIN IIIII / / \\ (SB-E) 7 � / Ill//j/��j� %� ��%� � _ _ _�= — � _ � �hII IIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIII -- — � — IIIIIIII IIIIII II IIII IIII IIII\IIIIIIII IIIII III I 11 I I III I III II I I I �� _ �_—IIIIII III (IIIIIIIIIIII II Illllllll IIII I IIV�\VAV IIIII IIII III III IIII l I A V I\ �V1 �A�.�\ w�� _ _ >�� I I� I I �_— ✓— IIIIIIIIIIIIIIIIIIIIIII IIIII IIII IIIIIIII III \\V�ll IIIIII III III IIIIII IIA I LEACHATE LIFT STATION_ _ — I(I 1 I ; — IIII II II I I`II III \`I L 1 1 I I I III II II\ Ill 1 II I IIII III II' 1 11 \ r> — I� —_ ��A\✓ �\��-�-III\ �\I ♦♦ I -' v� � 7 � _vv � � \ r- \ / / > / r — LEACHATE EQUALIZATIO rw \ I7 TANK FACILITY \♦ 01 \ ` — — — _ — — — \�� \\\\ \ \ \ \ \\\\ \ \\\\\\ IIIII Ill II 111 I l / /ice _� �� \ I/�/ �� \\�\\\\♦ \ \\\\\\\\\\\\\\\\\\ \\\\ I� l II III >I I I) I� // -- --_ \ \ V l l >>> "o \\ \\\\IIIII l I I� IIII I II III\IIII I III I II/IIII I� I / ��\�\ I I\CI I EXISTING CHANNEL I�I IIII �IIIIIII I IIIIIIIII I II 1 II 1 (�� A I I II I III I I III IIII I II�IIIIIIIIItiIIIIIIIIIIIIIIIII I II I I Ill �'I III I I/ III �ii �� \vv ---�/ �� ' ox � v� vv>I��IIIIIIIIII�IIIIIIIIIIIIIIIIIIIIIII IIII IIIII II111 \ I 1A VA\\\\ //��' _�v � r /♦ °° ` vv vIIIIIII IIII III II L�I,�I,IIIIIIIIIIIIIIIIIIIII�I IIII IIIII l IIIIIIII A I jlI I v I Il I �VAA \ Ill i�� `\` I` _ �� ♦ � v IIIII II IIII IIIIIIIIII II o I IIIIIIIIIII III II I IIII \1\ \ I I \ � I ll l � j ��\VA I I �, — � � l� � �- /� � / I � ♦♦ Qxo ♦ � I II II III I I II IIIIII � I, IIIIII IIIIIII IIIIIIIIIIII / III )I) �I IIII � ICI I I VA 1"'\ ii -� V A �-_ �� i 1 I 1 �"w V� / // � ��♦ ° � � IIII 11 � 1 I11111111111 II III IIIII II IIIr l l � IIIIII IIIIIIII IIII III I I III 1 I II�, I I� � / /// j j i o�' �\ � � VA ��\\ v / -- vv�� \\ �WEST ROAD \ /I/ I \ �� ♦♦ sxo° IIII IIII IIII IIII IIII IIII IIIIIII �IIII�IIIII (ACCESS GATE) I'll / l �¢ _ _ �\ �\ I 1 //� � � � IIIII IIII IIII IIII I IIIIIII I I I \ I I III IIIII I✓ /IIII 1 111� �� f (/� / � � �- ��\ I x IIII I I I l I IIII I '�,,' �v �_ _ �>/ � \ � i/ � �� o l► I II I III I I �I IIII IIIII I IIII � o v \ I / / I 1 I I / � o ` ,III I IIIIIII IIII �i/ 1 IIII IIIIIIII I D— (PERMIT 73D-LCID-2002) ° I , � \ o I ll I Ili, l 419 AST DIVERSION SOUTHE o / °CHANNEL w \I \ I1II/I1II'I/ I/ I II/I �/1//11�IjI/I/�I//ll /// /�I/Xoo PROPOSED LANDFILL EXPANSION dII�� j / J CONCEPTUAL FINAL COVER GRADES 'sXoo ♦� I.... ,, o �S)/lI� \ �o /� 19+00 JD _ � 0 23+00 24+ 1 - op 25+00 26+ o I — -- FILL TO APPROX. ELEV. 520 FT— ( / / ((� (� \\ \\ �\ \ / / ♦ ` 27+0 (TO PREVENT PONDING— E�( WATER) 32+ 00 033 14 v _ —_�� —�, \✓ �� _ =\\\ ill III I � �I II � _ I wood _ 1�,IVIAIIIAIVIAIlII�A�A�AS\ 1 \Environment& Infrastructure Solution sF4021 STIRRUP CREEK DRIVE, SUITE 100 \ \ \ \ \ DURHAM INC 27703 TEL: (919) 381.9900 FICENSURE:901 NC ENG: F-1253 \ \ \ ��\ \ / \ \\ \ \ INC GEOLOGY: C 247 SEAL NOTFOR CONSTRUCTION 0 12/18/2019 1 7812190186 DESIGN PLAN BBC BBC TM CK CK ISSUED FOR REVIEW REV DATE JOB NO. PROJECT TYPE DES DFTRICHKD,ENGRI APPD DESCRIPTION INCHES 1 2 3 TENTHS 10 20 30 4 5 6 7 8 ROX C999.001.013 IREV. 0 LEGEND EXISTING MAJOR CONTOURS — — EXISTING MINOR CONTOURS APPROXIMATE PREVIOUS ASH BASIN LIMIT OF WASTE N UNLINED PORTION OF INDUSTRIAL LANDFILL LINED PORTION OF INDUSTRIAL LANDFILL PERMITTED LCID LANDFILL LIMIT OHE— EXISTING OVERHEAD ELECTRIC PROPOSED MAYOR CONTOURS PROPOSED MINOR CONTOURS 1. TOPOGRAPHY IN EXISTING LANDFILL AREA IS 2018 PERMITTED FINAL COVER GRADES. 2. OTHER TOPOGRAPHY FROM APRIL 16, 2014 AERIAL SURVEY BY WSP. 3. ALL MAPPING IS N.C. STATE PLANE COORDINATES NAD83 (2011) AND NAVD88. 4. LIMIT OF AREA B (WHICH IS LIMIT OF PHASES 1 - 6 LINER) IS BASED ON EXISTING LIMIT OF LINER MARKERS. 00 0 200 400 FT TITLE CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS EAST ASH BASIN CLOSURE BY EXCAVATION ROXBORO STEAM ELECTRIC PLANT PERSON COUNTY, NORTH CAROLINA SCHEMATIC LANDFILL EXPANSION PLAN FOR ISSUED FOR REVIEW SCALE: AS SHOWN DES: BBC DWG TYPE: DWG DFTR : BBC DUKE NF JOB NO: 7812190186 CHKD: TM DATE: 12/18/2019 ENGR: CK FILENAME: ROX C999.001.013 SCHEMATIC LANDFILL EXPANSION PLAN.dw APPD: CK DWG SIZE DRAWING NO. REVISION ANSI 22"x34" ROX C999.001.013 0 9 10 0 /U O X C� C� co O C) W F Plotted By: Moore, Ben Sheet Set: Roxboro East Ash Basin Closure Plan Layout: ROXC999.001.013 SCHEMATIC LANDFILL EXPANSION PLAN December 17, 2019 02: 17: 59pm Q:\Duke Energy\Roxboro\7812190186EAB Closure By Removal — Hybrid\Plansheets\Issued for Review\Rev. 0\ROXC999.001.013 SCHEMATIC LANDFILL EXPANSION PLAN.dwg 3 4 5 6 6 ROX C999.001.014 IREV. 0 F 720 710 700 690 680 670 660 650 640 630 620 610 600 590 580 570 560 550 540 530 520 510 500 490 480 470 460 450 440 430 420 418 720 710 700 690 680 670 660 650 640 630 620 610 600 590 580 570 560 550 540 530 520 510 500 490 480 470 460 450 440 430 420 418 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 29+00 30+00 31+00 32+00 33+00 33+50 CROSS SECTION H PROPOSED FINAL COVER 4 1 4 z z PERIMETER BERM 3 1 PROPOSED SUBGRADE PROPOSED SUBGRADE EXISTING ASH\71 1) 7 Z\�7 7\7 \\7 EXISTING GROUND (REFERENCE 1) ` \V/ (REFERENCE 10�0 � 7777\77\ HISTORIC (REFEFRENCE TOPOGRAPHY 3) PROPOSED DMM/CUTOFF WALL - HISTORIC TOPOGRAPHY (REFERENCE 3) LEGEND REFERENCES: 1. EXISTING TOPOGRAPHY FROM AERIAL SURVEY BY WSP, APRIL 16, 2014. PROPOSED FILL 2. TOP OF PARTIALLY WEATHERED ROCK WAS TITLE ESTIMATED BASED ON WELL CONSTRUCTION LOGS PROPOSED FINAL COVER CCR SURFACE IMPOUNDMENT CLOSURE PLAN DRAWINGS FOR P-101 THROUGH P-141. PROPOSED PERIMETER BERM 00 wood EAST ASH BASIN CLOSURE BY EXCAVATION 3. HISTORICAL TOPOGRAPHY FROM DRAWING No. G-174635 ENTITLED "ROXBORO STEAM ELECTRIC — — — — — - EXISTING ASH ROXBORO STEAM ELECTRIC PLANT PLANT DAM AND RESERVOIR CLEARING PLAN", HISTORIC TOPOGRAPHY Environment& Infrastructure Solutions PERSON COUNTY NORTH CAROLINA PREPARED BY CAROLINA POWER AND LIGHT 4021 STIRRUP CREEK DRIVE, SUITE 100 COMPANY, REV. 1, DATED JULY 9, 1969. DURHAMINC 27703 SCHEMATIC LANDFILL EXPANSION CROSS SECTION EXISTING GROUND TEL: (919) 381-9900 FAX: (919) 381-9901LICEN FOR N NCENGSF-11253 ISSUED FOR REVIEW INC GEOLOGY: C-247 SEAL SCALE: AS SHOWN DES: BBC DUKE DWG TYPE: DWG DFTR : BBC o %m N F �GXf JOB NO: 7812190186 CHKD: TM NOT FOR ® DATE: 12/18/2019 ENGR: CK CONSTRUCTION FILENAME: ROX_C999.001.014 SCHEMATIC LANDFILL EXPANSION CROSS SLpff®N.dVQK 120 0 120 240 FT DWG SIZE DRAWING NO. REVISION N 0 12/18/2019 7812190186 DESIGN PLAN BBC BBC TM CK CK ISSUED FOR REVIEW ANSID 22"x34" ROX C999.001.014 0 REV DATE JOB NO. PROJECT TYPE DES DFTR CHKD ENGR APPD DESCRIPTION — TENTHS 10 20 30 4 5 6 7 8 9 10 INCHES 1 2 3 A--� N O X `J co F--�