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Home My WebLink About7302_Roxboro_EAB_PEStamp_AppD_FID1389488_20200206Wood 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 I " rovidznoz ROX C999.001.003 OVERALL SITE EXISTING CONDITIONS - AERIALHEATED WATER ROX_C999.001.004 EXISTING CONDITIONS PLAN . •, . DISCHARGE .,; SEVI 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 0 Roxboro ROX_C999.001.007 DEMOLITION PLAN Z� � ROX_C999.001.008 FINAL ASH GRADES PLAN 1 •• , - CONTACT INFORMATION AREA OF 0 �I THE EAST ASH BASIN U11 ROX_C999.001.009 FINAL SURFACE WATER MANAGEMENT PLAN OWNER: DUKE ENERGY PROGRESS, LLC c��' , ADDRESS: 401 SOUTH WILMINGTON ST. . ,o ff ROX C999.001.010 CONCEPTUAL DMM WALL PROFILES """r RALEIGH, NC 27601 / 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 6.48 388 N ENGINEERING FIRM: wood. SITE LOCATION MAP - 1 - 5 MILES SITE VICINITY MAP - 1 if = 20001 LONG: W 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 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 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 $ 1 ROX C999.001.004 IREV. o _- _ -/ _ l�/ / _ / l ��--- :::]- // %�/ / ,\ °� � i��,-- �ii��\ ) ( S\_-_L 1 \ �- \/(1 `�� 1� 1\\\ \( 1 �_ - - C I -- / I� / / / - \ l�� / _ _ -\\\ c_ \ r �� I1r 1��\J \ �\� l / //////� _�/i/� - _ ____ /// /,/ / - — — —/ / ----- 20�20 l I /i�� / 1 \ \ u / \ \J \\ 3\ / / // //I J I /) / -/ %// / �/ \`410 �(a\I J t/� / ��i// L /,iii ^\�� \��= i�� , - ---° �\ \�\ /� //// / 1//// \ J \ (\l / ' J _J �= � /Or//r�J� � I/ / i//ter / /J v;��%,,. � �! �=J=� -�'� �—/°oo�� _ � \—��\\\�\ S � �-,\ `' 1// f/� ��%i \\� \Z \\\\� 1 V/ // / J/ \v\ /� v vvvv \\ ) o �v (/�///ii 1 A� V� \ /( / / —� / /l / / l / �I / i — - r 0 �_ �= c ro �� i \ \\ o o / I I I / // I I \\\ 11J\ \ �1 I / / �_ - - -v _ _ =// is"� II 3H0 // �3 / r / I //ice/i� - MAINTENANCE V �� j I� r' _ � - _ _ = \\\\\ \\\\ \ d °°° �o J �/% // �l/l / 11�\ /� J I - �t�1 \\�\\\\1,l ��rJ III , / / ( J \/ 11/I� �� - -_=— // I 9/ / /A�r� a !J \1 /L./= = — — = — = �\ \\\ \\\\ tea, !% //J�ll \\\\\ �� (1� \ �ll��`� I I I / I- 1 I \ f_ - [ - - __�� 1/l 1/ 3 - , \ \\\\ ,BUILDING \\ / /� __-=_ =_—=__--_--\\\\\ \ \� �� _ J \\\�//i \~� \\ \\\11 I I I / // I I 1 _ _ _ ii ( / - v v \ / 0 1 /II _ __ _ A _ - - _- - _ _ - _ _ A\ \ _ \V�\ / / v 1 \ > l( \ I I SUBSTATION �_ v v v \ vv i r V \\ �1 —�//� a i/ �� A —� i'�— �L�� /\)�\�� \\\�\�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 \ / �� 5� > \\ \ \ \\ / - _ % \ \ \ \ 1 \f�. \\ 0 \\ \\�pJ \ _ / II 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(I O — �\—\\\\\/ /�/ ///� \\ l ��' \ o / \ , i/ \� / �o \ \ / \\\\ _ �550 _ __�i / > S / ii/ - I (/ /i/\\ 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 1 \\ \ \) /l`= i / %/�/�ii 1\ - _ - /� �\ �(I ( ( I / ! ` /// / \\\\ \\ // / / L =// % \)II l\��\ �// //^� \ \I \ `1 \ \\ ` _ __ _ _ �/ 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 1 l ` (\\ ( �// / / _ \� J/ I / / \ \\� \ \ \\ I ((/ /// 1 — — — — — %� 1 Ill\\\� �� / /� \\\ \ ( �� ` � > t f — \ \ �\ I \ — //// i \�\ _ �1 / ,� _/ /�/ ) \ \ \ ) 11\\ _�� , \ +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°o \�\ 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 /l(o \\\\\IV/� \ \Jl//, \ / _ I 1 \ \ II ((� II\ / / / \\ \ \\ _ \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))) 1 - _ _ �--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 - / \\ \ \\ �\\\♦� \ \\ �/ / /�- \ l I I / //i////J/ l /lj l �_ - \�� \ \ I I( - - \��= ��!�/� R� - \ \\\\ \ - - // //iii////� ll / ��/ / \ \ \ \ �/ // // 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 /� / = �� /// / / 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 //� �� (/ ( �- =�� \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 / v / /i 1 (� ��_ = =% -�) 11 ) loll/// I v A / / //� / //i/ /i�__�- ___- VA I l l / vv\\ II I 1 \\ \vv _ v , \1 I �_ wvv yv 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 11��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 _ 1 \� / �\ \a s l l I I I � I \\ /�/ (<// �/� �� _ /-� \\\� \\ \\'� //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 \ \\ \\I\ �� \ %/ - _- = ; - �\ \\\ \\ \ 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�� /(I 1 vv v VA ��'/�/i%---= vv vVA\A 1 ll�l�� //��v��I>l%l)\ I ��yw(V(l -"vIII Ill //// //// //// / / / 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 \ \ \ \ \\ / \ // / \ IL \ \\\ I I I / I / / \�\� /� \� \\\ \ \ \ \v,- vim- �A \ VI I / �s �� <9s vv �� ( I I // // v\�/ / - v � A I I I III 1 ll I I\� vv/ // II /-� / V A \ 1 \IIII / I / / I I \ v // / 50 / \ \ \ I V A \ \ V A \ \ V I l I SCALE: AS SHOWN DES: BBC 111�\ II I / ) \V� \ I \ \v/ // \\ ( \ \ I I Il III )AI /Ill ////// / /// �/v \� ��\�11� IIIIIIII IIIII( Ill// I l lV A v\ v 'v��/_,/ Z; 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_ _ = � -, / 1 \ \ - - I l ) I I \ ) \ \ \ / / i r/ // ,/// // (\ // �\ \\\\ \- - (1 \ I \,— - � // /// / I \ \ \ _I I 111 \� \\ \\ \\ \\ \ \ \\ \ \\ \\ / // / / \ CONSTRUCTION APPD: CK //// / / �/( l /// �V -� �4�� /` , l /i//, �/ 'SF �\\, / `�- \ / /I II I\- I \\\\� \ \\\\ \\\ \ \� \\ \� \ / �// / / //j/// / I / / //�i1 \ \ \ \ / I \ \�_ /i / / / / i i I / \ � \� —�l I \ Mbv �6BR �\ I I \ . � \ \\ \ \ � � , \ , \ � ¢ \ . , \\\ .\\, \\ /.� /i//i! _ — DWG SIZE DRAWING NO. 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\ (\\> I �) / w , _ It I ♦ �� ♦ ( 1� ) A� \� I 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 \ \11 1\I //--- ��X__,1\ ♦ lf// // / / /\\ ` \ \/\� 1 \ \\ / 1 \\\\\\\\\\\ II APPROXIMATE ASH BASIN LIMIT OF WASTE / /� �� \\ ♦ / / - \ \ \ \\\ \\ \ �� '^ I I I /� \ / i \ \ / /v 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 / - All 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 1 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,/,�/,, �y�- 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 / / � � � ��► 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 IotIII l _ - I l / / I j°// 1i o o°I/ �� t3� �\�\, _� v � � � �� A� =✓ S/= \\V - /� /� l ,/�� i�/ / / // / 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\�� //(\� fl �� _ _-= -;� �(\\\��_�/ ( __�_ �� ( _ \ \\\\��I,I ( -�/ °��_-\\ ) 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(= �! \ I / �\ _ = ==_= ��I 9° \��\/i/\\\\� ,��.\ l �� 1 \ / \�,¢ IIII I II1\�%� _� J�/// a� ////// E -%—- / /� (�� \\\\\II %�\� III I(1 U — \ soo II//l//I/ \\\ _ ��-- — + \, - - i ) �— i /,—`, a �/� //o DIFFER. i /� \I \ 111 / 1 / -� - - % - - - ii - \\� �\ -'EAST ASH BASIN = - - \~ -� _ _ Jam`-� \ ll �� 1 i \ 111 p� I (I// �\\ ///// \ // 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 / 11 �_- _ \ �� \\\ ////� , - / / /�/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 SCALE: AS SHOWN DES: BBC II\__ -_ v\ � \ �I �� ( I / / / I / Ill/ ll 1 / 11 // � / // � \� \ VA\V�V1A1 I I -_� I Al I / 1 \V� \ I / - \ \ / 11)VI1 \ �/I /// / / \V� III \�\_ - % ) ll�lll I 1 I I I o o - �"\ \ \ \ \ / / \ \\ \ ( / I / l/ll /1 I ` 11 l/ l / / / // / -\ \ \� \ \\\ \\\ I -� = 111 I II I / / \�, ,_� 11/� III////IIII II \�� of //( ��\ \)� \ \_J/��_ \ \\ I I I (/(�/ (IIII /�// /_' ' \\\ \\\\ I �� // / I I I V� \ s - v - , � v\ v - _ � l ) / / I l ll j I / , // // I I I I) / / v v \\ \ \�\`V�VAA`� VI I -lei/i\/ll 11 l/ j IIII I I VAS v �/ > I ( (I V Av V -// / v v v _ / 1 / I I // l lI v l/i( / // / \ \ \VX \VA 1 =�K / _ ////�ll/�/Ill / \_\53 �I \\ �(�\� \ ii\� \\�\\�� / l l I /lll� �/ II III I \ \\\\\\ \ I // /l/// I \-� o I II I(\ \ / \v v / // l l/ll�/l (\ y �/ 111 I I I I 11 II ( \ A \\ \ VA\\- / � \ i I \ \ 1 \ \� 1\\ / /// / // /%/ / I 1 ///-_ \ I i \ - � > > � \ / I / I 1 \ \ 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 /'/'/////, �// \ ;/ _/ \\\\\ Z / �, V� �1, / /\, , 1 \� 1,,J1/l I I , � _ �� _// /// %�% / / I \//// \i\\ \ // I 1 \\\� / �i /> yF \ �--_ _\� � % r 1 I \ ` — \ — J / / / II III II DWG SIZE DRAWING NO. REVISION / // / /// / / I \ // / /�\VA�\\ �� _ r-I I / �_ v /// / l i V I / \ � �� - / II / ( /�/ / / / J/ / A ///i \ \\ - - _ - v I� / �� v \ / - I /� III / / � //////��\\\\ 1 __ - I \ � / // _\\ \ I- t\ � _ / �� - _ , _ (�\ _ "- - ANSI ° ROX C999.001.006 0 �� = \�� //// / I \�\\� \ `J _ -L - —3 — — 0 12/18/2019 7812190186 DESIGN PLAN BBC BBC TM CK CK ISSUED FOR REVIEW 22"x34" iy�I///j l� ll l Ai/i/ll %�A\\yw� �=�v / l v�- // / / \ \\� �\\ \\ \ I /� \ \\ � // I / I // / / \ ,\\ \ — = I \ \ \\ �� _ __ / �_ = J — — — REV DATE JOB NO. PROJECT TYPE DES DFTR CHKD ENGR APPD DESCRIPTION INCHES 1 2 3 TENTHS 10 20 30 4 5 6 7 8 9 10 Plotted By: Moore, Ben Sheet Set: Roxboro East Ash Basin Closure Plan Layout: ESTIMATED BOTTOM OF ASH CONTOUR MAP December 17, 2019 02: 12: 42pm 0: \Duke Energy\Roxboro\ 7812190186 EAB Closure By Removal - Hybrid\Plcnsheets\Issued for Review\Rev. 0\ESTIMATED BOTTOM OF ASH CONTOUR MAP.dwg 2 3 4 5 6 7 8 I ROX C999.001.007 IREV.0 — / / I yr L�\\ __�/� �,// �//� — = �i/�L,/l �'I j� �/ �jj�j %//js s j/ [ �— -, \\ \\\ , /i i = _� ,,(' �- ^ • ) �� — ---- �� /- /� _ /(l ////iz:- �i/ii // j /� lam/ �� \�- \ ) %_�-- �� \ /%� / _=_ _ __ l I /� / //�/ / �� / / \\ \ o///- - �/ / (4) CULVERTS \ APPROXIMATE LIMIT OF - _ \ �/ / = I / ( S L - - / / /v- \�\ \ \= w/P //�� i / j I LEAK DETECTION VAUL j EMOVED) \ / DEMOLITION AND UTILITIES STORMWATER / ' _ _ ,) - / / I// /// ��\ � ///� \ i //�/ L/ / \)\\\�� i ✓ TOBER _ ---- / � � \\- - / / / r / / / (`-\\ \ / `� ( REQUIRING RELOCATION CHANNEL PC-1 - / �= %// /r �%� /' / I /(/ / //// / /_��/ v v\ �� i� ( O REMAIN �/ - 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- _ I a \ ♦ / \ o \ \ \� \ \ D P-6 R / /i// i//ii//i:i / / / // \\ \\\ / l�/(/ // -__ = _ _ = 560�- \ \ \ I OUTLET I \ EAST ASH BASIN \� /ii // / /% //i /i \, / // // //// - - 1 \ \ \ \ / IIII / \ �i/ /ii� /i// i / //� //i ii \ r / \ \\ \ ////�/ / /// / / _ � - _ _ . ) \ \ j \ \ / / \ c MAIN DAM . /i �// ///ii / ) \ > �\ \ \4 l // 1/ // / //�- _ _ I c \ \ �\ \ `� �� /ii//i/i/i / /i / / // / / / 11 �/ / / Ill \ ) �lp`�-' \ 1\� i//�Oi//i/ii // / / // I( �— / �� / / i�Y� /�///�_=570�'�_— \ \ �\ I / \ \ )� \\� \ \ \ / } S �A \ �\ / /l /i//— — — \ / I �� \ V \ / / \ \ /i / / / /i f i s/ �/�t////,/,�/ / _ _ - \ �/ \ \ IIII 111�1/\- / I \ \y>. //%� //// // ) \ \ �� ( Alr//�/� / // /�� _ o ��` \ �\ I \— \\ \ \ 1 \ \ \ \ / I Ill I I 60ii // i/ / /i/ / ii / S/ / // / ///////////// / = 580= �� / �` / \ \ \— l\ \ \\ \ \ I /I � \ / /// / // / �� / / / / / // / / /// / / // - - ♦ / =- -=_ I / -�� ,3" i / /i / I /r rI I / f�%�/ / // I // ///// \ -_-- - / / \ \ EM DFIBE )\ \ ` \,\ \ 1 /\/,� / // // /�� /� ] / I // / // ( / - 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/� / ° / / / / /j // // / �/ /// /� \ I I \ 1� V �*, \ � l (o � /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 V V A — O / / / 1 I / /fJ\� \ DP -7 OUTLET /� / J /�" 3 /// j // � / \ / \ \ % / I \ / i VAV / / /i// / / j j 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 /n \ 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 j INDUSTRIAL TANK FACILITY // - / / - , rn \ \ \ \ \ \ \ //, \ / / / / / / / / \ \ \ \ \ l� ` \ 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 \ LANDFILL / TN - / / / // / i �i /i /i /�////i // /�= l _ - \ \ \ \ ' PERMITTED LC \ \ \ \ \ \ - _ / / \ 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�� 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 ( / / �47 �� > 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 (1II (-- 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� / A — v \ \ '� �� \ %_ _ = �, �� I (� \v�\ �w�� o \ / " \V�\\�A v��A \ s4o _ _ _ _ _ �► \ V A ��> A _ ;�� _ :EE— w � = _ _ _ �J�) I I VII I III I 1 I I I *Woo-� r �- ' I v -- ► / A V A� )v)\ \� \\ VA \ S\ _ - - - A I _ A ��_ - -_ = J I I I o I vv LEGEND 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 IIIIII I I 1 I I I ( I 1 I III \y V� \ Vvv,�� - 1 �) �_ -- _-,� �� #-; �� vim- _ __- 1 II II IIII III III IIII IO IIII II I �_-♦�� c� % ' - I v - ---_ - -- = I IIII 1 II I I III )) I =_ -- - i �, 'I /� r\\ ) - v j% r / �,� v vv'Aoo� �v ��A1� A /\\ \ '/ � `�— _ y �y �� - v>//��_ _�-_ _ II I \IIII III \I III (r �// = t ,.�� s / \ / ° / V AA\ 1 \ % \ 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 < \ �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\\ //, %� / AA\ \ �vv��w� v� v`\vww�� -�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 ��\I I( j ��- = _� \�� \ \ DISCHARGE \\ / ► o, \ \ \ \ � \\\ 90 - \ , _ %\�\ _ .IIII ♦` \\ \ \ III III h I /// _ - - �\ \ \\� I /K / _ 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 IIIIII 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 °7\ \\\� �. \ �� _ -\� \/ 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� — 8 C v� / v � ��- _ ) V A �e vvAvvvv v\ vVA v Vv ,� III) 9 ♦ ♦ IIII \ / I III I III \ VA\ Vvv /�,,h _wv �. I/) / A v \V A�v - \ l� CULVERT '`- 1 � ( \ 1 v J I AVA v\ v � 7 I IIIIII / �� I I� 1 /I IIII IIIIII I I IIIIIIII 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\ \��\ vI o III ♦ (off I I) I U I I I \ \ s o l v / \ �\ � _ \ /� - � ( I \ \ � , ./ \ ! \$ � I 1 / ` ) -� \\ /A � _ o \� \ \ \ �- � _ 1 I ) I \ III IIII III 1\ 11 \ I I 1 a\ \ �\O\ s\ 1 �� \ \lll � �� \ / >/ / \ ) ! r \ \$ ` / �� ` \\\\\\ \ \ \\�\\ \♦/// ♦ II1 I I I I / I o \ \ ,� I \\\ I / \\\ \\ \ \ III I I 1 \ � PERMITTED LCID LANDFIL LIMIT /—/ ♦ / v I \ \ \ v// �� —�� — v� vvvv \\\ �► I ,�II IIIIII I I of o /)>> / l �A �, A/i�wv�w��\� _ 1 , /// / /vv vvv �/� v \�� S I \V.. / ( \ \\�I \ _/ _�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 \ \ \ \ 11 I / \ \ \ \ \\I / // ♦ I 1 o I I M I I / / - - \ �\ \ �/� \ \ \\ / - v A I / 1�1 \ v� _- 1 / / 1 / /I I\ VA ) l /� / _ A �� A A V\�i 1 VAVA\ - \ 11A II ) ��// III / II I I' / /// // / / _ _ VAA v// A\\�\\VA //////i AREA A CLOSURE EVENT 1 LIMIT f A I / /i=:— `\� a -� it IIIII // 11 II I v v v) �� /�/ '/// v v IIVIIv lam! /',-__= v�w- ---yW /�\ �II o / /' I I / �I�II��I �I IIII //////// , _ _v vv��vv\\\vv vvvv 1 III � v �I �- I V v / �V � /// / / AA \ y \ \Vv�_ %��/� %/��i ��)/�/�ti�l l\1A \\IIIIII 1 ////�/ IIIII 1 f",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 <�/ - - - / / 1 v \ ;��`� 5._ y_s� // // - v \ VAS_/%/ /� / ��v I I v II v o I I I III I1 IIII �II)))1� /// ii'/ -__+ v 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 - -- '/ �l\ I� /( / /� / /III ( / - \\ \ 1/ \ I1 / -/ , -�i -/� \ ��I 1 I II\ \_ _ _ �)\�\ l/ a 1 II / I II \ I I /I / �\ \ 11 I PROJECT NOTES: - = - \\ \\ \\I\ \\ ' - _ �� IIII (/ I '�11\ I�\�1►G`-\�\ \ \ \ I / f �\ ��' O /i/// // \ 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 / 1111 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 I11111 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 - r�l / A � �v l// j / - v 1 t PERMITTED - v vA \ IA) A\1 1 1\ �\, \ /i//1// �l l l 1 j / / / / _ v v ( - - v��'v 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 �' ��/ / /ice \ ° lI(o/--v\v;y�////� A` ) /11��//�/IJj / A\\ f ((V(IIII II It /�///I / / / ( �==�� /- I ��vvo�� II II Illy/ �� \\\ � �1 I\V 11)� I / / I I11�11/((//i��/iIIIIII SOIL CAP. / \ / \ \ \ / / //3� / I I I - - o \\\\ \\\\ / \ �\ l I I , / l %/ / / �/ j / �/ \ \ 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 /7/ 'A \ :::� 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 / / / ✓ / / _ /�// / / ///7,11� //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 l (I O \\\ // ' j\ /1/ J % Ii/ �\'lio�� \ \1\ \ / \ //, // / o \ \ _ — /" / ii/ , — / I ( /i/ ///� \ 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 1� - J�j/� / \ _ - �'� / /�i /i \ I \I I ( I `\ / / = \� /% / / \\ \ \\ / /// I = _ _ _ /� �\ ( \--\ - ///� \\\\\\ l� \� - �.�� ( ') /1 - / \ \ -` I \ _ — //// / AND ASSOCIATED JUNCTION BOXES. \l�\=- ►� j/ // //�// \ \ \\ I IIII \\l\�\\\\(� ///////�\� \ \ ) 0\111�\� \a�i\ o )) (I(�� _ �ii�Illl\�\\\_/i///\\\ \\(�1 L ��`-� OF INDUSTRIAL LANDFILL/ \\\ )11III�\\ _ - J// % j ) ��- ��- ) / I �� \� \\\j/ �J/ /( \ / - / J � \ \ / p \ / � _ _ _ _ // \\ / // \l 1 I \ _ _ �\J /// / / 3. EXISTING ITEMS TO BE REMOVED INCLUDE FOUR CULVERTS, �. - - / /�/ // // \ 1 \J(�l\\\�� \ / /I(/I /'� \/- �� \\ a/� \ \�// \\� \ __-- _ ll�\ \�/� r/�\\\\�\\��_ �\ 1 (( / r ( I i L ; ii l/\ �¢ l 1 I IIIIII\i�� / /// // E �� - / /// /' - / J I ( �\ 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� - �� / ♦� >ll� I IIIIIIII ii/�� / I/ / v l�� ((� _ v� %� / v v vvv __�� - vT 1l // v�� 11 / v '-7-- �= / / �'/ / / / /, - - _7\ \\� I II l \j\� J11 \\\(� \ \\I1Q'\� I \-� �- /i \ \\\\ \\ c J /// o �`� \ \\V/ ` \\ ; /// \ \ II I \ I I 1 1 1\ / \ \� \\ \ �< \ \\ \ _ �� - �� 1 I / J \\ \\ ✓ -\ \ \ y 1 / REFERENCES: I --- I II / / - I �-- ! �\ o Lv \\\ ��// .M \�\\- \\ �\ �� _ �\ \ Ss �� / I 1 1 \/ 1 / J / /// / / ( / 1 r \ I I / I 1\\ / o / \ , �'— / \ \ \ \ — — I I /I \ \\\\ //� /i / i/ // / v l \ V )l/l) III// /�_�J I ( I1��v�VAVA1\\ L �� v vv vv vv\ 1� �`_---' = /// � \ 1 )vim//� v \\ / / /�//� / \ I > //////// /�/ /// �� V vv\ v -�� - - /� / 1 - - v� \ \ \ - 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. / �/ / \j / APPROXIMATE LIMIT / V 1 l ��// �/ �j//�i - I ( / \ \ \ lIl l�)) 1� �\ �� - - =r�- VAv\ \� v � _ III - - - _ ) - / //� ( II/l� ///ice/ AV A \ \Vl�-v ��-==-5` - y__�A v \ vim- ,v�1 - l �ll I _ v A ( \vvv) _ \ \ I(/ ( / 1 // ( \ ( \ WASTE I II I ( �� /� j// �\, � - -) �- \ \ \ \ II 111111 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 III/// // �\-_ !� / / - _ _ �- _ \\\ 1 I 1 \ \� z / I I \ \ \ ; - - - ��\� \ \ \ \ I -� /i/ / - - \ \\MAY 15,2017 AERIAL SURVEY BY STEWART. OTHER I II \� \A\ \\ - \, \ \ � \ (PER SEPARATE (\ I III �/ /�- - _ -\ � \ _ - J 1 ) III /l � � - \ � \\ / � � - - = ___- = � APPROXIMATE -- -1 -- \\\\� I I I \ \ \ \ \ � � � - \\\\ \�� - - / / //-- -�\� s \ - _ -i / / 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�v - I V v A \ 1l _ 7- /�/I I// 1/ l/ - v v ,\ ll - _ v��_ _ �v //---= v - // / ll/ / wV\VA /// \ \ \ I-- - - i �� - \\ \\ \ �- %/ / /// / \ \ \ \ o �_�- � \ - / \ /-/l \ / / /// / / \ \ vvv vvvvv vv / vvvv //�///,/- �,vI 1 / _ �/ /�/�/ / / / _ vvAvvvv vv 1 (r vv, v v vv / /�vv�� // �� A�\ / - V I II l/� //ir/ I( ll�l l-- v� Vvvvv \\ V I %'----- �ww/ vv`-/ � \ V v v / /// / / / l( / / wV AVAv 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 \) )\\ 1 \ 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 \ wood_ /� _ �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/ // \\\\) III I 11 \\\ \\\ \� �- /\ \\� ��I111 I////�-- \\�\\\' / / �'// �i/, -�� JI 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 \ 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 / / �� - \\ / ,�\\ \� I , C ( � �- /// = ^ \\\\\ \\ \�� Jll1I 111 (\\ \ \\� \\ )) / I I `\ \�\ \\ \I , \\ \\\)\\\�\ \ \� \ / �/ \\ \ I I / �a ° \ \ I ( i // / / I Environment & Infrastructure Solutions F \ \ i / / — / I I — _ _ \\ ( '�' I I \ \ r 1 \\ ` \\ 1✓//_ i = , \ \ \\\ \ \ \\\ \\ \ � \ l ( \\ \\ \\\ \\ I >�/ /)/// // , /� / / / — _ \ \ Ill 1/)1I / Il \ \\�\ \ \ \ l / i i 4021 STIRRUP CREEK DRIVE, SUITE 100 \11 I/� _ _ \ \ o I / _ \ \ \ I \ / > > 1 / \ \ \ III I I) I I / PERSON COUNTY NORTH CAROLINA \ \ / �� // // — �/ \\ \I I (NI I I I 1 I \\\ \l\�� ))))I/// �- — �\\\ � \\\ \ )1 I\\ \\ \ \\ �\ ��\\\\\ /// / // /// /// // /// \ \\ \1/ / I 1 540� \ \\\\\\ I� / / DURHAMI27703 \ \$ / \ \ - \�\\� I \ \ \� \/ / / \ \ /// J 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 II \ I IIIII//(�/ / � v v s� °�\\ / (I \VA VA A �/ % / I— — — — — — — A AV V\ I ) 1 1 \� \ \\ \ v V\\VA \\ \\ I / /1 / / / / / // / // A �// / O _ v \ \ \VA \ I I I I — LICENSURE: FOR / \\�_,�$ 2�/�/i/-- \ I 1 ��//_� JiI>l \\\�\\\ II �II�I 11 111 /// / \\ \�J�/i��//-\\� \\\1\ \�\II\\ I \\\ I\ \�\ ��- I)/ �I ( \ IIIIIIIIvv I / /o -�- \b \ v v\ v V A \Ill ��= M / v )�ll / // v —�// / v / \ \ \ / �530 III I I \ \ \ / /// — \ \\)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 // �"� <p vv 1� l I I / AvA v\\\l / \ \ I I II II IIII V /l(1 // � _ �// - 1�� w�\vI I/ll I I�///l l //�/l / l ( \s ////� v A \ \ V \ \ v - A \ y �,S1Z v / A vv I v / I �/ /� - /- � A I v \V A 1 I / sr / / IZ/ - w VA\ ��\\�\ I \ V � \ \ \ \ \ \ I I I SCALE: AS SHOWN DES: BBC \\ IIA�\\ III I / �" -\ �1� ' I \ / / -v v I III 1 \ / / \ \\ 1\I I I I I III 1 I/ /1 I I \V\A o // vA ) ( \ \ \ A\ \\ V A \ I r \ \( I / / I III Il \ v / /I )// / �/ \ \ 1 I I I / / // I / �/ / \ \ 1� \ \ \\\ -/ /\ \� \\ 1 \ /// -, � 1 \\� \�\v��, �� IIIII) I I) I I o 1% \\ \ vvv V A v / / V I ( \ \ I I I )// I/)�11\I /�I(l%/l /// ///i / A\ \ I I I I I \ \ / / / DUKE / A / / /� I / \ \ \A \ IIII (( ( \ - ) (Ill A \ \ V V A \ \A \ \ DWG TYPE: DWG DFTR : BBC III IIII ) II I \v — �/ / v vv I I I / / // I Il�//\1 �/ /v v V I IIII \ 1A I V v v / / �/ ;� lt�l z\ \ \ \\ \ \ \\\ �� %'%��// lI /II III 11 I V�\VA v s � ��( 11� / // — v vV Av` / l 1 111 I / l I� ////l//I 1 (� // /i // \ \V \\VA\\VA t II \1V \ \\ \ \A I /i �� ) \ \ V \ —_ /,�, l l 1 /I I I v v �o A � v v I// / v \ V A 1111 \ v v I _ vv vvvv vv A ' \ \\ i/i/ //// I I VAv A/ ) I A�\rls\ VA V -�/i» v, Vv �_/ / %/ l 11 /// // v //l I I I I l l �- V A\\ \\VAS\\� III I \\\\ \ \\\ I \ V v V A 1 I ( �\ I v- �\\\�VA \ V�\AAA Vv �� JOB NO: 7812190186 CHKD: TM / /�� ///�/ll� \/I l \ � �sI I A (\f yr r\L v\ / / / / ( I I I �I I I l V \ \� \VA VA\ v v �V I I V A \ VA v _ v v v\ \ v / A >ll/� v� V A \ v / /� / / //// / 530 \ \ - / / ///_ \ \ \ \ / / / / / _ / / / I I I / \ \ \\ \ \ \\ - \ \ \ 1 l ¢ Q <, \� \ \ \ \ \ \ \ DATE: 12/18/2019 ENGR: CK ///� // /// I I l �`i II ) (\ �� \ // \ \\ \ / // / � � - / I I I \ \\� �\ \ \ \ \� \ \ \ \ ¢ \� \ `�� , J \ NOT FOR / �/ / // /// ,s2o �s - _ / II �J\\ - / / //, \\ \\ / / l l i 1 \ \ \ \ \\ \ \\\\ \\\ \ - �� \ \ \\\ \ \ \ \ �� \\ \ > \ \ I/ /�/// / �ii/// 1 �/ /� \ - I�\ll \ _ /� \ �\\� / / // / /� - �� I \ l I I \ 1 1 \ I \ \� \\ \ \ \ \ \ \ �� \\\ I > > / I \ \ 11 1 \/ \\ \ \ \ \ \ \ \ \ \ \ / ` CONSTRUCTION FILENAME: DEMOLITION PLAN.dwg APPD: CK / // / / /iii /l l \ / /i // \ \ // l) ) \� I ) I I \ \ \ \ \ / \ / J 1 /ii �� / /�/ / ) ��\\� - = 1 /l \ \ \\ \ \ \\ /��iii�j/l l I \ /i i // �\ \ \\ - - \i� l /i / / \ - - - I I v I \ \ \ \ \ \� \ \ \\ \ \ / /'/ l / / - ��- � \ i/ f! _ - DWG SIZE DRAWING NO. REVISION l / 'yF \/— \_�/ //III I — I \ .\\\\\\\ \ \\� \\\ ¢,�.� \�\.\\�\\ // / / / / / / /// I \ \�/ //� \\\ I / \ \_ / / / / / / � — I—_ l l/1/ l // l 1 //�i/ 1\V� v _ l \ vg, / // I�H-��A \ vvv vv--/ / /I L - ANSI D /IIII I(( (/� /;l///� vV // //��VA 11 - I �� /� / / vv ,vA - _-- I� // I //,/ I / / / /// // �/ 1��\� I ) � \\ — , / / I \�\\ \ \ \� � � — — — - — ` / - _ — 0 12/18/2019 7812190186 DESIGN PLAN BBC BBC TM CK CK ISSUED FOR REVIEW 22"x34" R OX C 9 9 9 . O O 1. O O 7 O ////�/ll�I l l I I 1 -- //- /,/, X �AA\� _ -\v I(\1 �/ v� ) // I Q vvvv v � — -- -- / _ _ - - - ti / % / // / // \ \ \\� _\\ \ i �'�\ I 11 \ 1 \ \. � _ �\ \ / = J\' — — — — — — REV DATE JOB NO. PROJECT TYPE DES DFTR CHKD ENGR APPD DESCRIPTION INCHES 1 2 3 TENTHS 10 20 30 4 5 I 7 8 I 10 /U O X I^^ `! 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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\\\ \\ 1'1111I1111 //I /\\\_ `� // - - \ \ \ - \ I / I I 1 \\ - \ \ \ / - \I ll / /i __ 4 ---- i\\\ if I \ \ \� \\ \ - __ _ \\ \ \ 550-�// / \ I I \ \ \ \�\\ \\ \ \ \ - ( I I \ -- l I ( /�/ \� \ - J \ I I / / - \ �\ _ \ \ \ ti 1 I \\ \ \ \\ � j _ _ - - \\\ \ \ 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-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 lI / /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 1A \ 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\vA v y vv yvv VA\ 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— \ \ / / — \ \ \\\ 1 I I I \ I \ \ / \ V Al \ ) \\ �I I / / v V A \ — / / / / — \\ ( — Environment & Infrastructure Solutions \ \1 III �// ] \) /%)I 1 \\ \\ I \III II Il / // / / /� \ \ =�//// _ \ \ \�\ I I \ \ \\ \ \ \ _ 4021STIRRUPCREEKDRIVE,SUITE100 PERSON COUNTY NORTH CAROLINA MARCH 25, 2015. 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C --__� V\I (II 1 �� _ V ) I �� vvvv\��//AOF WASTE �� Z �__�.� y1///�l 1a) I IIII / ivv /�� / // o/ / //%.- AI v = vV�\\III %�vv� I�� of ��%�/�\\ //�/// ��s '�► \v�� i� v�� _ wvvw_��- -�� _II LINED PORTION I\\I\VIII��/�/� _// / /, V (/(/� /% /----�\V I II / �� ),� 1 v // \ \ \v �/ \III / / v - _ �� - - / \ \ \ =� / OF THE INDUSTRIAL LANDFILL \ (� / )� (- \ IIII I�// -490 \\\II\� \ \ \\�\ -_- �\\ - o \/ / /i /' / I f ---� )ll) III✓/ /.s,_�I l\\ l \� 475 %��\ - �� \\ - \ --- ��` I I _ _ \\� / L �/ \ 1 / \ ( 1\ / // // I �// /'o 00 - �) 1 ( Ilv \\ \ \\A ♦ � \ \\\,, s\ \ o f _ - //� / 1 0- 44 \ \ I I - 1 \\ � \ \ o M / / /� \ I ) \\\ \\ / ) //�// / // ///ho ^ � / � \ \ / f\ \ \\\\ \ \ A — \ o \ ! 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APPROXIMATE LIMITS OF WASTE PRESENTED HEREIN WERE OF WASTE I I �, //i�� l ) I Il /�= / / = \ - - _ �\ I I \ / �) / / \ \ PREPARED BY SYNTERRA FOR DUKE ENERGY. / �I iii ,/— \\ \ \ - _ / /I Illl l\ I // 4 ��= \\ �/ '�___ _---_-__�\\� — i-_ - � \ I� I \ \\ \� %� / >\) I I /� \\ \ \ I \ \ - I I 'I I'1 1 ( \ \1 _// � \ \\� \ l / - - % / /J///�)) �/(/ _ � \ II I -- \ \ \\\ \ _ - �� / / / / I I ) / \ \ \II II 2. TOPOGRAPHY IN EXISTING INDUSTRIAL LANDFILL AREA FROM \ \ o\\ \�\ /�///// l '- �i//i// �lll / l l \ \ 1 ( - \��_ \ /�� = \\ / \ \ \ \ \ \ \ \ �i - \ 1 I I r- -__�� / / // / //� _- \�\\\\ \ 1 I (( -- \\� � \\ - - = % � �� - \ \ \ \\ \ \\ \\ - I/ I / / / / / / J l l / / \ \\\ \ \\\\\I MAY 15, 2017 AERIAL SURVEY BY STEWART. 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II l , vvv v v I II / / �1 III /% / - - I I 1 IIII 1 �1\ �\� \ /%� _ �- - - \\ \�\\\�\\ �\ \ \\, �� \\ \\ \\ �I / /%/ / woO EAST ASH BASIN CLOSURE BY EXCAVATION 1 \ \ %/� i // % — \ \\ \ \ \\ \ \,\ \ \ I I / / / // / r \\\ ( l I I / I \ \ / /i / , _—_ _ \\ \ \ \, \ \ \ \\\ — \ \�\\ \ / PROJECT NOTES: ROXBORO STEAM ELECTRIC PLANT I II \ I I11/ II/i/ / \\_� \1 1 I \ \ � \ ,\ 3__ �///- - _ \\\\ \\\1 \\41 \\\ ) �\ \\\\ \ \\ \\\ \I I/ / // F Ill ( \ IIII \ / / \ \ 1 1 \\ /I I \ \ \�/i�// � - - - - - - \\ \ \\ III III\\8°,) �w/ > \\), >>l%/ I \ 1\ - \\\\\\\\\�1\\ II I �I 1 / / I Environment& Infrastructure Solutions PERSON COUNTY NORTH CAROLINA I I I III I / � � L \J �/j I I \ \ \ //// \ \ \ 111 1 III =_ _ // / -� \� )%/(I I 1. THE CLOSURE BY EXCAVATION AREA WILL BE GRADED TO DRAIN THROUGH THE 10-FOOT DIAMETER CULVERT UNDER 4021 STIRRUP CREEK DRIVE, SUITE 100 \ \ \ Il I \\� \ I / / / \\ \\\ �I SI I ( \ \ \ 1 // i /� \ \ I III III 1\ /// /� =� /// �i — \\ I(� _��\ I I / / Il / DURHAM NC 27703 \ \ II \\\ \\ I / / �, \\\1st¢/ I I \ / \ \\\\\\ // /- \ \ IIIIIII II / I /� / _ / \ILL \, \\\' I I I DUNNAWAY ROAD INTO THE WEST ASH BASIN (WAB). TEL: �919�3s1-99oo FINAL SURFACE WATER MANAGEMENT PLAN �v _ ��\\ 1I - `�'s / I IIII v /�(I /// V/ �� \ \IIII I /� I I II\ I II I / I I I \ / / / / \ \ I I I III I 1 \ \ / / ) /// // / / / / i \ \ ` \\ \ \111 I 2. THE CONTRIBUTION OF SURFACE WATER FLOW FROM THE DRAINAGE AREA UPGRADIENT FROM THE EAB IS FAX: CEN URE: 01 Z_ - 7�___ I l l I I I p 10 \\ y\ \ v/ / \\ 1 I I I I �1J A I/ / A\ I IIII ucENsuRE: FOR 1 I ) I I I Py \\ \ / - \\ / // /% / 01 I /) I,// // / / \\\\ \ \ J III CONSIDERED IN THE POST -CLOSURE STORM WATER DESIGN ANALYSIS. �I III I I �/, �o /\ \ / _ \ \ I / I I I / / / /� I //(/ / // // / / \ \ \ \ \\\\\ I I NC ENG F-1253 ISSUED FOR REVIEW �% =,�I 11 I llll 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 / l 111 \ \ s '\ I _ \\ J 1 / Il // /I i / \ \\\\ II I 1 I \ ( \ / l�-\ \ I l/ v l \ -i///// l/// lI I 1 \\ \ �`/ ) \ T, ,I \ - -// I I I /// / / � "/ /( \ SCALE: AS SHOWN DES: BBC // //// / / Ill I \ I \ \ \ \ /» \ \ \\ \ / / / / / 1 / III 1 I I I I l // / \ \ \ \\\\\�\\� \II III 4. AFTEOR COMPEET ON OF EAB REMOVAL VERF CATIONEAL LE BPSOURFACE WATER PASSING THROUGH THE CULVERT l y / �l /,ill v v I N�,��L vv y �, l/ I I/ ll l l v v vv vvv v // /�//\i/ ///// / I I - _ \ \ _ _ II , , \i�,�� \ ///� - \ \ \ \ / / / / - / III I \ \ \ \\z "' I I WILL BE CONSIDERED AS NON -CONTACT WATER AND WILL NOT REQUIRE FURTHER TREATMENT. THE NON -CONTACT DUKE DWG TYPE: DWG DFTR : ggC I ✓/� _ \ \ \ - r °�° \ \ //� �\\\/� ) \ -� /� �/ ///� = J� ��\ ) II II� / I \ \ \ \ / I III II EAB SURFACE WATER PASSING THROUGH THE CULVERT WILL BE TEMPORARILY DISCHARGED INTO THE HEATED ////�///////�// l \ \ // %�ii _ \ \ 'l \ /i / // --/ / I C I \ � I I I II _\ JOB NO: 7812190186 CHKD: TM ,/„/ ////I/I\ \\\ \�s� — � ENER %/ / / / / y �,,r, v V I/ ll� l I V v / l \ WATER DISCHARGE POND. / / / �/ // i / / /j/�\ \ \ - ` �� I l �4�\ / // // - 1 F / - \ _ \ 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 // // // 1 \ / / 1 \ \ �- \ / - / C \\�� / // // // 1 \ I \- // / / / / / i �- / l / / l _/ ///�j/ I V \ — � // \ \ / // H �\ \ 520 v Z \ \ v _ i l III — / / / // 1 \ \ \ - - \/� / / / - \ J _ _ f _ - _ - THE CULVERT CAN BE DISCHARGED INTO THE WAB. I II / I l I ////// j \\ `\\ I I / �\ - - - \ - - - - _ _ / _ - - _ FILENAME: FINAL SURFACE WATER MANAGEMENT PLAN.dwg APPD: CK I /� I I / l I �/i \ \\ \ v 1 ?` \� 5i0� / // l 1 \\\ I \ 6 - -__ _ _ -_ - l�il��I I 1 11 1 J ///r //l //�\\\\� �\\ Ill �, I \ \ _ —_ = _ —_ _ — — _ CONSTRUCTION // // /// /i \ �� - \ I(I (\ � ,1 ll 1Qy\ \ \\\\ -_- \ \ \� 1 I I I Imo° l aN sap - ; - - - IV l (( �_ j//�////// v- v� _ �� I II II IV A\�v�� \ vvV \ b v_�\ I l ///ice / l///��v A�� \�II(( / / / //// \___ _ 11 I I I \\ � //I \ 0 v H \ 1 v\ 1 -'i/ //�///� �� v, �/ - FBI 11I )I \V AVA �� `- v 1 /jl l/ - l l /// / i v vv � � �\ \\�\\\\. vA i/� �,,//- ��l/i, - lI li/,ll � \\�1A,�i y(1�1�1"°wvv 1). v v _ ) l��lli/��%l l/�ll�/// �/ vvv o �2i�si2o�9 7s�2�9o�s6 // l / vvv, I i ; / / v / REV DATE JOB NO. DWG SIZE DRAWING NO. REVISION ANSID ROX C999.001.009 0 DESIGN PLAN BBC BBC TM CK CK ISSUED FOR REVIEW 22"x34" PROJECT TYPE DES DFTR CHKD ENGR APPD DESCRIPTION 6 7 8 9 10 ;a O X 0 Co co co O C) O 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 1 7, 2019 02: 1 5: 41 pm 0: \Duke Energy\Roxboro\7812190186 EAB Closure By Removal — Hybrid\Plcnsheets\Issued for Review\Rev. 0\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+00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 400.00 390.00 380 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 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 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 'T BOTTOM OF WALL ESTIMATED 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 PROFILE A 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 00 490.00 480.00 470.00 460.00 450.00 440.00 430.00 420.00 410.00 400.00 390.00 380.00 22+50 23+00 23+50 24+00 24+50 25+00 25+50 26+00 26+50 27+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 u) N 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 DUKE SCALE: AS SHOWN DES: BBC DWG TYPE: DWG DFTR : BBC NOT FOR �, ENEnGY® 012/118/2019 86 CHKD: TM ATE 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 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 4021 STIRRUP CREEK DRIVE, SUITE 100 PERSON COUNTY, NORTH CAROLINA DURHAM NC 27703 TEL: (919) 381-9900 FINAL SURFACE WATER MANAGEMENT PROFILE FAX: (919) 381-9901LICEN NCENGSF-11253 FOR ISSUED FOR REVIEW NC GEOLOGY: C-247 SCALE: AS SHOWN DES: BBC DWG TYPE: DWG DFTR : BBC DUKE m N F nGl1® 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: ROXC999.001.012 FINAL SURFACE WATER MANAGEMENT PROFILE December 17, 2019 02: 17: OOpm 0: \Duke Energy\Roxboro\7812190186EAB Closure By Removcl - Hybrid\Plansheets\Issued for Review\Rev. 0\ROXC999.001.012 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\\ — �- ' / �✓ � � III �i — ll /__ _ — NORTH RAMP \\ \ \ \ \ SCALES r� �// /�/ ///�/� //// //% %/�� _—=_ ' — — —V� \\�\\ \�V�A\AA�\A\ _ # _ _ � � — — � \ � �__��--� 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 ; 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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 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 DFTR CHKD ENGR 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 N F nGXf JOB NO: 7812190186 CHKD: TM 10 DATE: 12/18/2019 ENGR: CK FILENAME: ROX C999.001.013 SCHEMATIC LANDFILL EXPANSION PLANAw 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 � 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--�