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NC0003425_03_Rox_CAP Update 2019_Figures_Large Sheets_20191231
Corrective Action Plan Update December 2019 Roxboro Steam Electric Plant FIGURES CAP Content Section 10 LARGE SHEETS SynTerra a r 91 IL ad )RRECTIVE ACTION PLAN -AREA DWELL NETWORK TRACTION SYSTEM 18 TRANSITION ZONE -BEDROCK EXTRACTION WELLS (EX-1 THRU EX-18) EAN WATER INFILTRATION SYSTEM 27 SHALLOW -TRANSITION ZONE -BEDROCK CLEAN WATER INFILRATION WELLS (IW-1 THRU IW-27) III'' � � .•�' III I " • ................ • • lid/ �y:: g, • • • • • _ � �x I W-8 pi 0 v a I MAPS@ ••'s \ pF i 1 ' - o i is -�,_,�!/• /i "" ,, ...•" _ ; := :�!`'::`�i©/ �/ _ j e� opop 1 4 - • .�SL� ,., I I/ � • . • • • • • erg% 1 ulll/IIII// NO • �i i%'` • mills.0 III rr� J v pA �I DERGROUND CONVEYANCE , p1p0 WATER INFILTRATION SYSTEM IF N LEGEND DUKE ENERGY PROGRESS PROPERTY LINE ® IW-15 PROPOSED CLEAN WATER N WELL IN SHALLOW, TRANSITION ZONENE AND AND BEDROCK ASH BASIN WASTE BOUNDARY PROPOSED EXTRACTION WELL IN THE �i Ex-19 — — — —ASH BASIN COMPLIANCE BOUNDARY TRANSITION ZONE AND BEDROCK SOLID WASTE LANDFILL BOUNDARY Ex-33 PROPOSED EXTRACTION WELL IN BEDROCK r , SOURCE AREA 1 GROUNDWATER REMEDIATION AREA SOLID WASTE LANDFILL COMPLIANCE BOUNDARY r MONITORING WELL IN SHALLOW ZONE , SOURCE AREA 3 GROUNDWATER REMEDIATION AREA MW-06S L_____J MW 06D MONITORING WELL IN TRANSITION ZONE PROPOSED CLEAN WATER INFILTRATION LINE MW 01BR MONITORING WELL IN BEDROCK - — — — — — — - POSSIBLE CLEAN WATER INFILTRATION LINE AB-3BR ABANDONED MONITORING WELL PROPOSED CLEAN WATER INFILTRATION LINE FLOW DIRECTION c GMW-2A PIEZOMEfER IN TRANSITION ZONE PROPOSED WELL EXTRACTION COLLECTION LINE �PROPOSED WELL EXTRACTION COLLECTION LINE FLOW DIRECTION S-13 IN -STREAM SURFACE WATER SAMPLE LOCATION PER SOC PROPOSED WELL EXTRACTION COLLECTION MAIN LINE O S-2 NON -CONSTRUCTED SEEP (APPROXIMATE) PROPOSED WELL EXTRACTION COLLECTION MAIN LINE FLOW DIRECTION NPDES REGULATED PLANT WATER FEATURE _ NPDES REGULATED PLANT WATER FEATURE FLOW DIRECTION AMEC STREAM 0 AMEC STREAM AS EASTERN DISCHARGE CANAL NOTES 1.) ALL BOUNDARIES ARE APPROXIMATE. 2.) SAMPLE LOCATIONS WERE DERIVED FROM VARIOUS SOURCES AND ARE A MIX OF SURVEYED AND APPROXIMATE LOCATIONS. THEREFORE LOCATIONS ARE DEEMED TO BE APPROXIMATE. 3.) DUKE ENERGY PROPERTY LINES ARE REPRESENTED BASED ON DUKE ENERGY'S INTERPRETATION OF HISTORICAL DOCUMENTED PROPERTY BOUNDARIES AND CURRENT PERSON COUNTY GIS. 4.) THE WATERS OF THE US DELINEATION HAS NOT BEEN APPROVED BY THE U.S. 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 FROM AMEC FOSTER WHEELER ENVIRONMENTAL AND INFRASTRUCTURE INC. NATURAL RESOURCE TECHNICAL REPORT (NRTR) FOR ROXBORO STEAM ELECTRIC PLANT, DATED JUNE 2015. 5.) THE TOPOGRAPHY IS SHOWN FOR REFERENCE PURPOSES ONLY AND SHOULD NOT BE USED FOR DESIGN OR ENGINEERING PURPOSES. THE TOPOGRAPHY BASED ON A COMBINATION OF SOURCES. "AERIAL TOPOGRAPHIC SURVEY FOR: ROXBORO LANDFILL" BY STEWART DATED MAY 15, 2019. LIDAR DATA OBTAINED FROM NC FLOODPLAIN MAPPING PROGRAM -SPATIAL DATA DOWNLOAD AT https://sdd.nc.gov/DataDownload.aspx# DATA WAS SOURCED FROM THEIR PHASE 3 - 2015 QL2 LIDAR 6.) SITE FEATURES INCLUDING UTILITIES ARE BASED ON SEVERAL SOURCES. ANY UTILITIES SHOWN ARE FOR REFERENCE PURPOSES ONLY AND HAVE NOT BEEN FIELD VERIFIED WITH REGARDS TO THEIR HORIZONTAL OR VERTICAL LOCATIONS IN THE FIELD. ALL FEATURES INCLUDING UTILITIES ARE DEEMED TO BE APPROXIMATELY LOCATED. 2019 AERIAL PHOTOGRAPH FROM BY STEWART DATED MAY 15 2019. 2017 AERIAL PHOTOGRAPHS OBTAINED FROM NC ONE MAP AT https://nconemap.maps.arcgis.com/apps/webappviewer/index.html?id=2c8a9b366c4841flbe2b464347dO4a2b 2014 AERIAL PHOTOGRAPH WAS OBTAINED FROM WSP FLOWN ON APRIL 17, 2014. DRAWING BY WSP, CARY NC TITLED "AERIAL TOPOGRAPHIC SURVEY ROXBORO PLANT", DATED JUNE 8, 2015. JOB NUMBER 1570002.00, FILE NAME ROXBORO FINAL 06-18-2015.DWG DRAWING BY CAROLINA POWER AND LIGHT COMPANY TITLED "DRY FLYASH MODIFICATIONS- GRADING PAVING AND DRAINAGE PLAN 1", REVISED FEBRUARY 18,1997, DRAWING NUMBER D-4504 7.) DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIP 3200 (NAD83 AND NAVD 88. gSTORM A 4l0 �' '+ O WATER POND W.E. 427.2 k,�0 I CCU LVERT' + I 00 4 / , \ ® N60 j 0 ' S A IDONED RAILROAD LINE 0.� / i \\ Ago 480 i A 490 � � I 500 410 DFA HANDLING AREA 0 o CORRECTIVE ACTION PLAN - AREA C WELL NETWORK \\\\ \ O o O 0 EXTRACTION SYSTEM 51 SILO ���� 12 BEDROCK EXTRACTION WELLS (EX-39THRU Q W-22BRL SILO1 EX-49 \ DRY FLY ASH SUMP EQUIPMENT BUILDING DISCHARGE INTO EXISTING4y0 \ DRY FLY ASH SUMP O PROPOSED EXTRACTION / � / COLLECTION AND PUMP STATION EX-44 • \ i_� i i I ii + ` 4�° \\\ j ^n N^/ \\ _ Ex-48 CORRECTIVE ACTION PLAN - AREA B WELL NETWORK rV ACTIVE BORROW AREA N SEX-45 �� EXTRACPOND W.E.ION SYSTEM �O 5 BEDROCK EXTRACTION WELLS (EX-19 THRU EX-23) \ E465.3 \\ n i EX-24 _ EX-26 MW 0 0 '' ° �� �`— '- — 35S 0.5 0.g, 0.10 O i \y�GATE c a /i �EX21 EX-27 EX-28 EX-29 35BR / 470 o / 510EX-30 )44 EX-31 i' - — 3A l /1 32 \ 1BR M ' / GMW-10 g0 / EX-33 / CCR-1 \� SCCR-1056R / '/ • 50o Szo CORRECTIVE ACTION PLAN - AREA A WELL NETWORK EXTRACTION SYSTEM 15 BEDROCK EXTRACTION WELLS (EX-24 THRU EX-38) E + i 510 i 530 \ / _---------- -------- CCR: \ 2 i \ \ 540 \\\\ 7-- CON RACTOR 560 DUKEI o ---- ---- a ENERG PROGRESS N boo 590 600 synerr �4 1 S°\ STORM WATER POND' D I I 1 \\ \ \ 490 \\ \ I II I _ ------ -- \ j I PROPOSED EXTRACTION COLLECTION \ \\ �/ OWN NOV-_ PROPOSED EXTRACTION \ COLLECTION AND PUMP ST, WATER 0 I I Ir II II � II NOT FOR CONSTRUCTION GRAPHIC SCALE 100 0 50 100 200 (IN FEET) FIGURE ES-3 DRAWN BY: J. CHASTAIN DATE: 12/18/2019 PROPOSED CORRECTIVE ACTION APPROACH REVISED BY: - DATE:- CORRECTIVE ACTION PLAN UPDATE CHECKED BY: J CLEMMER DATE: 12/18/2019 ROXBORO STEAM ELECTRIC PLANT APPROVED BY: C EADY DATE: 12/18/2019 SEMORA, NORTH CAROLINA PROJECT MANAGER: C. EADY www.synterracorp.com v j GERTA GYPSUM PLANT HYCO RESERVOIR WE.= 408.8± `7- 0 0 �-A C 77- M -28BR M W .0e 14 cc� 3 R 5 X J L MW-213 13.28 INTAKE CANAL ------- W.E. 410+ DISCHARGE CANAL owl- 10 'n 1` Ilk' 77� ------------ 194 DFA HANDLING', 460 AREA W.E. 410+ 2 141 U INTAKE B MW-34BR MW 420.52 17 �'CND 35D 0 1W MW-30BR MMN�k-1 V-353H ON9 21 '58 IF 7 7,/(--j IJ 7-777 *7 ,— .. In Em I ED vVA I r-r% D -J� E� ELECTRICAL 530— SUBSTATION 7' E= N *41 , 11 �lr 30 VI VV- t DR —A ABMW-71B RL A -VI - - 461.19 9 A Z U0 c:) CCR109BR' L0 1.50 .OiO- -JEAST ASH BASIN 'Sli.29"�l INDU STIRIAL LANDFILL 4117 .31 \',(PERMIT NO. 7302-INDUS) ?/ ABMW 6 ARTESIAN If ��4�6 9'.' W72 -4 00 \!P` CCF .5u- PERMIT NO. 7 C 7 7 711 IL 2� GMW-7 L4 IV vV Dr% 4 827 7t 7 T c MW- 199. S� N, L Mw- BIRL 483 EL G -8R MW J/ j /a ;> 122120 t MW-13BR 489 Z--j A R �.47 v 7 6:- 37 0 will 7- 7± ImIxoxxx1v \\NPON POND A V.L. + KIN �M,R 4A 26BR 62 Lo Lf t!k. Well LEGEND FM W 1490.39 D 1500 DUKE ENERGY PARCEL LINE (APPROXIMATE) INFERRED WATER LEVEL IN TRANSITION/BEDROCK ZONE (NAVD 88, FEET) ASH BASIN COMPLIANCE BOUNDARY S FFW 32BR WELL I D IN TRANSITION/BEDROCK ZONE WASTE BOUNDARY (APPROXIMATE) 47j.15 V 6' WATER LE EL IN TRANSITION/BEDROCK ZONE SOLID WASTE (NAVD 88, FEET) LANDFILL BOUNDARY WELL IN SHALLOW ZONE SOLID WASTE LANDFILL COMPLIANCE BOUNDARY WELL IN TRANSITION ZONE WETLAN D BY AMEC FOSTER WHEELER WELL IN LOWER COMPETENT BEDROCK STREAM (AERIAL PHOTOGRAPH &TOPOGRAPHIC MAP BASED) WELL IN ASH PORE WATER FLOW DIRECTION WELLABANDONED STREAM BY AMEC FOSTER WHEELER c SURFACE WATER PIEZOMETER IN TRANSITION MATERIAL (AERIAL PHOTOGRAPH &TOPOGRAPHIC MAP BASED) c PIEZOMETER ASH BASIN PONDED WATER (APPROXIMATE) 1190 A NPIDES OUTFALL LOCATION NPDES OUTFALL 003 FLOW DIRECTION NPIDES REGULATED WATER FEATURE OTHER THAN ASH BASIN FLOW DIRECTION —510 TOPOGRAPHIC CONTOUR (10'INTERVAL) TOPOGRAPHIC CONTOUR (2'INTERVAL) GROUNDWATER FLOW DIRECTION NOTES: DUKE 1. MANUAL WATER LEVELS MEASURED ON APRIL 22-23 FOR ALL WELLS. EXCEPTIONS INCLUDE MW-lBR (APRIL 29, 2019). 2. DUKE ENERGY PROPERTY LINES ARE REPRESENTED BASED ON DUKE ENERGY'S INTERPRETATION OF HISTORICAL DOCUMENTED PROPERTY BOUNDARIES AND ENERGY URRENT PERSON COUNTY GIS. 3. NOT ALL UTILITIES ARE IDENTIFIED ON THIS DRAWING. THE UTILITIES SHOWN ON THIS DRAWING ARE VISUAL AIDS TO LOCATE THE STREAMS AND WETLANDS IN THE FIELD. PROGRESS HE HORIZONTAL LOCATION AND VERTICAL LOCATION HAVE NOT BEEN FIELD LOCATED ON ANY UTILITIES AND THE SHOWN LOCATIONS ARE APPROXIMATE. 4. TOPOGRAPHY IS BASED ON LIDAR BARE EARTH DATA OBTAINED FROM THE FRIS\NORTH CAROLINA FLOOD RISK INFORMATION SYSTEM AT http*.//fris.nc.gov/fris/Download.aspx?FIPS=031&ST=NC&user=General`/`20Public AND A DRAWING TITLED AERIAL TOPOGRAPHIC SURVEY-ROXBORO PLANT BYWSP, JOB NUMBER 1570002.000 AND DRAWING FILE NAME ROXBORO FINAL-06--8-15.DWG 5. THE WATERS OF THE US DELINEATION HAS NOT BEEN APPROVED BY THE US ARMY CORPS OF ENGINEERS AT THE TIME OF THE MAP CREATION. T IS MAP IS A PRELIMINARY JURISDICTIONAL DETERMINATION ONLY. THE PRELIMINARY WETLANDS AND STREAMS BOUNDARIES WERE OBTAINED FROM AMEC FOSTER WHEELER ENVIRONMENTAL & INFRASTRUCTURE, INC. NATURAL RESOURCE TECHNICAL REPORT (NRTR) FOR ROXBORO STEAM ELECTRIC PLANT DATED JUNE 2015. 6. FEBRUARY 5, 2017 AERIAL PHOTOGRAPH WAS OBTAINED FROM NC ONE MAP. 7. SAMPLE LOCATIONS WERE DERIVED FROM VARIOUS SOURCES AND ARE A MIX OF SURVEYED AND APPROXIMATE LOCATIONS. THEREFORE, SAMPLE LOCATIONS ARE TO BE DEEMED APPROXIMATE. 8. ALL BOUNDARIES ARE APPROXIMATE. synTerra 'A n J GRAPHIC SCALE 300 0 ISO 300 600 FIGURE 5-4a (IN FEET) WATER LEVEL MAP EAST ASH BASIN DRAWN BY: J. CHASTAIN DATE: 8/8/2019 TRANSITION/BEDROCK FLOW ZONE REVISED BY: C. NEWELL DATE:12/18/2019 (APRIL 2019) CHECKED BY: K. LAWING DATE:12/18/2019 CORRECTIVE ACTION PLAN UPDATE APPROVED BY: K. LAWING DATE:12/18/2019 ROXBORO STEAM ELECTRIC PLANT PROJECT MANAGER: C. EADY SEMORA, NORTH CAROLINA www.synterracorp.com HYCO RESERVOIR 41. INTAKE CANAL W.E. 410+ GPM" 414.8( M9 f7 DFA HANDLING AREA INTAKE BAY COOLIN A lv_- ! \� 37� W.E. 410+ x POWER HOUSE c 44 77 L D MW-35S MW-35BR 21 437.58 1 R 420 - WATER DISCHA -it CANAL' 420 WASTEWATER HOT POND L k4 460.10 Q, 50- 77 JEATED WATER DISCHAR 7\� D Kl�- _IA] c::] E- it 11 ; 1 14000- 11', IE-= 0'� 'I -CONTRACTOR TRAILERS -6D I A) I L i �Jlv 0000, NPIDES OUTFALL 003 r2 Q !�d' Y; t q W-11D ;2.86 40000, Ij FE-ASTASH BASI d - 7t!_ ----- ------- ---- ------ �j 4 dool 410, IRD X 412.17 VIABM'vv INDUSTRIAL LANDFI :PERMIT NO. 7302-IN HWMW-lBR 411 glop [57 CCR-202BR STORM WATER DITCH A 7_Q ----------- - STEEP BANK 490' TO 478' 410.2 00 _�LCID LAWbFILL 01/22/201 AREA F',�JPERMIT NO. 73 M� RtA A�t '-,A _�E 148 CL-__ J, 'ORM WATER DITCH V, V 0 b 1. 12 N-1 \�\IONI) A2 W -463.7± E. 01112212015 VEST FGD TILING POND 0 (.E.- 491.7± Y- EAST F D 1 / / I �N 00, I I LING POND V.E.= 489.7+ 1 j k 'Ile .to 49 FGD FORWP FLUSH POND AbII MW-16BR IWEST ASH BASIN] A3 �CR-209S 57.01 1/22/2015 �-209BR RM 11 __o 'uu A( - _BR C( L 4� POND A 5 W V -462 . E. 1CCR-214BR 464.05 'cl klvv_6 cr All 447.95 r c� CCR-215BRI '466.46 c-cl- CCR- 16BR -461.7+ �s 493.44 - -------- ------- -------- - - ---- ----- - ------ - _3 > 7 VlW_ 71kt 515. Inffi&I FCCR-217BR I, X ATIANDING M 1) �U4 + T7 M, A8 W.L. 446± 16+ 411 6 % %\ w EL y 502.6 r'c" X\ N� oll LOCKED GATE -0 _ULM:L) LA I L A 7 �A f NO t Yl f 1 � N LEGEND 1500 - INFERRED WATER LEVEL IN TRANSITION/BEDROCK ZONE DUKE ENERGY PARCEL LINE (APPROXIMATE) (NAVD 88, FEET) ASH BASIN COMPLIANCE BOUNDARY * IMW-32BR WELL ID IN TRANSITION/BEDROCK ZONE 71-15 WATER LEVEL IN TRANSITION/BEDROCK ZONE WASTE BOUNDARY (APPROXIMATE) (NAVD 88, FEET) SOLID WASTE LANDFILL BOUNDARY * FM W-11 WELL IN SHALLOW ZONE SOLID WASTE LANDFILL COMPLIANCE BOUNDARY WELL IN TRANSITION ZONE I WETLAND BY AMEC FOSTER WHEELER WELL IN LOWER COMPETENT BEDROCK STREAM (AERIAL PHOTOGRAPH & TOPOGRAPHIC MAP BASED) WELL IN ASH PORE WATER FLOW DIRECTION WELLABANDONED I STREAM BY AM EC FOSTER WHEELER c PIEZOMETER IN TRANSITION MATERIAL I SURFACE WATER (AERIAL PHOTOGRAPH &TOPOGRAPHIC MAP BASED) c PIEZOMETER K\\\\\\\7 ASH BASIN PONDED WATER (APPROXIMATE) NPIDES OUTFALL LOCATION NPDES OUTFALL 003 FLOW DIRECTION NPIDES REGULATED WATER FEATURE OTHER THAN ASH BASIN -No= FLOW DIRECTION _510- TOPOGRAPHIC CONTOUR (10- INTERVAL) TOPOGRAPHIC CONTOUR (2- INTERVAL) -411111111- GROUNDWATER FLOW DIRECTION NOTES: 1. MANUAL WATER LEVELS MEASURED ON APRIL 22-23 FOR ALL WELLS. EXCEPTIONS INCLUDE MW-lBR (APRIL 29, 2019). 2. DUKE ENERGY PROPERTY LINES ARE REPRESENTED BASED ON DUKE ENERGY'S INTERPRETATION OF HISTORICAL DOCUMENTED PROPERTY BOUNDARIES AND CURRENT PERSON COUNTY GIS. 3. NOT ALL UTILITIES ARE IDENTIFIED ON THIS DRAWING. THE UTILITIES SHOWN ON THIS DRAWING ARE VISUAL AIDS TO LOCATE THE STREAMS AND WETLANDS IN THE FIELD. �\A THE HORIZONTAL LOCATION AND VERTICAL LOCATION HAVE NOT BEEN FIELD LOCATED ON ANY UTILITIES AND THE SHOWN LOCATIONS ARE APPROXIMATE. 4. TOPOGRAPHY IS BASED ON LIDAR BARE EARTH DATA OBTAINED FROM THE FRIS\NORTH CAROLINA FLOOD RISK INFORMATION SYSTEM AT �j http,.//fris.nc.gov/fris/Download.aspx?FIPS=031&ST=NC&user=General%2OPublic AND A DRAWING TITLED AERIAL TOPOGRAPHIC SURVEY-ROXBORO PLANT BY WSP, JOB NUMBER 1570002.000 AND DRAWING FILE NAME ROXBORO FINAL 06-8-15.DWG 5. THE WATERS OF THE US DELINEATION HAS NOT BEEN APPROVED BY THE US ARMY CORPS OF ENGINEERS AT THE TIME OF THE MAP CREATION. HIS MAP S A PRELIMINARY JURISDICTIONAL DETERMINATION ONLY. THE PRELIMINARY WETLANDS AND STREAMS BOUNDARIES WERE OBTAINED FROM AMEC FOSTER WHEELER ENVIRONMENTAL & INFRASTRUCTURE, INC. NATURAL RESOURCE TECHNICAL REPORT (NRTR) FOR ROXBORO STEAM ELECTRIC PLANT DATED JUNE 2015. 6. FEBRUARY 5, 2017 AERIAL PHOTOGRAPH WAS OBTAINED FROM NC ONE MAP. 7. SAMPLE LOCATIONS WERE DERIVED FROM VARIOUS SOURCES AND ARE A MIX OF SURVEYED AND APPROXIMATE LOCATIONS. THEREFORE, SAMPLE LOCATIONS ARE TO BE DEEMED APPROXIMATE. 8. ALL BOUNDARIES ARE APPROXIMATE. \XON1, E UKE ENERGY PROGRESS synTerra `4 AF k loor /41/1111�1'111/ MW-26BR 486.62 xl 40-0 no MW-18D 490.27 o z� N�l 1::�� �:o N :L/4 W y GRAPHIC SCALE 300 0 150 300 600 FIGURE 5-4b (IN FEET) WATER LEVEL MAP WEST ASH BASIN DRAWN BY: J. CHASTAIN DATE: 8/8/2019 TRANSITION/BEDROCK FLOW ZONE REVISED BY: C.NEWELL DATE: -12/18/2019 (APRIL 2019) CHECKED BY: K. LAWING DATE: 12/18/2019 CORRECTIVE ACTION PLAN UPDATE APPROVED BY: K. LAWING DATE: 12/18/2019 ROXBORO STEAM ELECTRIC PLANT PROJECT MANAGER: C. EADY SEMORA, NORTH CAROLINA www.synterracorp.com a r 91 IL ad )RRECTIVE ACTION PLAN -AREA DWELL NETWORK TRACTION SYSTEM 18 TRANSITION ZONE -BEDROCK EXTRACTION WELLS (EX-1 THRU EX-18) EAN WATER INFILTRATION SYSTEM 27 SHALLOW -TRANSITION ZONE -BEDROCK CLEAN WATER INFILRATION WELLS (IW-1 THRU IW-27) III'' � � .•�' III I " • ................ • • lid/ �y:: g, • • • • • _ � �x I W-8 pi 0 v a I MAPS@ ••'s \ pF i 1 ' - o i is -�,_,�!/• /i "" ,, ...•" _ ; := :�!`'::`�i©/ �/ _ j e� opop 1 4 - • .�SL� ,., I I/ � • . • • • • • erg% 1 ulll/IIII// NO • �i i%'` • mills.0 III rr� J v pA �I DERGROUND CONVEYANCE , p1p0 WATER INFILTRATION SYSTEM IF N LEGEND DUKE ENERGY PROGRESS PROPERTY LINE ® IW-15 PROPOSED CLEAN WATER N WELL IN SHALLOW, TRANSITION ZONENE AND AND BEDROCK ASH BASIN WASTE BOUNDARY PROPOSED EXTRACTION WELL IN THE �i Ex-19 — — — —ASH BASIN COMPLIANCE BOUNDARY TRANSITION ZONE AND BEDROCK SOLID WASTE LANDFILL BOUNDARY Ex-33 PROPOSED EXTRACTION WELL IN BEDROCK r , SOURCE AREA 1 GROUNDWATER REMEDIATION AREA SOLID WASTE LANDFILL COMPLIANCE BOUNDARY r MONITORING WELL IN SHALLOW ZONE , SOURCE AREA 3 GROUNDWATER REMEDIATION AREA MW-06S L—_—__J MW 06D MONITORING WELL IN TRANSITION ZONE PROPOSED CLEAN WATER INFILTRATION LINE MW 01BR MONITORING WELL IN BEDROCK - - - - - - - - POSSIBLE CLEAN WATER INFILTRATION LINE AB-3BR ABANDONED MONITORING WELL PROPOSED CLEAN WATER INFILTRATION LINE FLOW DIRECTION c GMW-2A PIEZOMEfER IN TRANSITION ZONE PROPOSED WELL EXTRACTION COLLECTION LINE �PROPOSED WELL EXTRACTION COLLECTION LINE FLOW DIRECTION S-13 IN -STREAM SURFACE WATER SAMPLE LOCATION PER SOC PROPOSED WELL EXTRACTION COLLECTION MAIN LINE O S-2 NON -CONSTRUCTED SEEP (APPROXIMATE) PROPOSED WELL EXTRACTION COLLECTION MAIN LINE FLOW DIRECTION NPDES REGULATED PLANT WATER FEATURE _ NPDES REGULATED PLANT WATER FEATURE FLOW DIRECTION AMEC STREAM 0 AMEC STREAM AS EASTERN DISCHARGE CANAL NOTES 1.) ALL BOUNDARIES ARE APPROXIMATE. 2.) SAMPLE LOCATIONS WERE DERIVED FROM VARIOUS SOURCES AND ARE A MIX OF SURVEYED AND APPROXIMATE LOCATIONS. THEREFORE LOCATIONS ARE DEEMED TO BE APPROXIMATE. 3.) DUKE ENERGY PROPERTY LINES ARE REPRESENTED BASED ON DUKE ENERGY'S INTERPRETATION OF HISTORICAL DOCUMENTED PROPERTY BOUNDARIES AND CURRENT PERSON COUNTY GIS. 4.) THE WATERS OF THE US DELINEATION HAS NOT BEEN APPROVED BY THE U.S. 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 FROM AMEC FOSTER WHEELER ENVIRONMENTAL AND INFRASTRUCTURE INC. NATURAL RESOURCE TECHNICAL REPORT (NRTR) FOR ROXBORO STEAM ELECTRIC PLANT, DATED JUNE 2015. 5.) THE TOPOGRAPHY IS SHOWN FOR REFERENCE PURPOSES ONLY AND SHOULD NOT BE USED FOR DESIGN OR ENGINEERING PURPOSES. THE TOPOGRAPHY BASED ON A COMBINATION OF SOURCES. "AERIAL TOPOGRAPHIC SURVEY FOR: ROXBORO LANDFILL" BY STEWART DATED MAY 15, 2019. LIDAR DATA OBTAINED FROM NC FLOODPLAIN MAPPING PROGRAM -SPATIAL DATA DOWNLOAD AT https://sdd.nc.gov/DataDownload.aspx# DATA WAS SOURCED FROM THEIR PHASE 3 - 2015 QL2 LIDAR 6.) SITE FEATURES INCLUDING UTILITIES ARE BASED ON SEVERAL SOURCES. ANY UTILITIES SHOWN ARE FOR REFERENCE PURPOSES ONLY AND HAVE NOT BEEN FIELD VERIFIED WITH REGARDS TO THEIR HORIZONTAL OR VERTICAL LOCATIONS IN THE FIELD. ALL FEATURES INCLUDING UTILITIES ARE DEEMED TO BE APPROXIMATELY LOCATED. 2019 AERIAL PHOTOGRAPH FROM BY STEWART DATED MAY 15 2019. 2017 AERIAL PHOTOGRAPHS OBTAINED FROM NC ONE MAP AT https://nconemap.maps.arcgis.com/apps/webappviewer/index.html?id=2c8a9b366c4841flbe2b464347dO4a2b 2014 AERIAL PHOTOGRAPH WAS OBTAINED FROM WSP FLOWN ON APRIL 17, 2014. DRAWING BY WSP, CARY NC TITLED "AERIAL TOPOGRAPHIC SURVEY ROXBORO PLANT", DATED JUNE 8, 2015. JOB NUMBER 1570002.00, FILE NAME ROXBORO FINAL 06-18-2015.DWG DRAWING BY CAROLINA POWER AND LIGHT COMPANY TITLED "DRY FLYASH MODIFICATIONS- GRADING PAVING AND DRAINAGE PLAN 1", REVISED FEBRUARY 18,1997, DRAWING NUMBER D-4504 7.) DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIP 3200 (NAD83 AND NAVD 88. gSTORM A 4l0 �' '+ O WATER POND W.E. 427.2 k,�0 I CCU LVERT' + I 00 4 / , \ ® N60 j 0 ' S A IDONED RAILROAD LINE 0.� / i \\ Ago 480 i A 490 � � I 500 410 DFA HANDLING AREA 0 o CORRECTIVE ACTION PLAN - AREA C WELL NETWORK \\\\ \ O o O 0 EXTRACTION SYSTEM 51 SILO ���� 12 BEDROCK EXTRACTION WELLS (EX-39THRU Q W-22BRL SILO1 EX-49 \ DRY FLY ASH SUMP EQUIPMENT BUILDING DISCHARGE INTO EXISTING4y0 \ DRY FLY ASH SUMP O PROPOSED EXTRACTION / � / COLLECTION AND PUMP STATION EX-44 • \ i_� i i I ii + ` 4�° \\\ j ^n N^/ \\ _ Ex-48 CORRECTIVE ACTION PLAN - AREA B WELL NETWORK rV ACTIVE BORROW AREA N SEX-45 �� EXTRACPOND W.E.ION SYSTEM �O 5 BEDROCK EXTRACTION WELLS (EX-19 THRU EX-23) \ E465.3 \\ n i EX-24 _ EX-26 MW 0 0 '' ° �� �`— '- — 35S 0.5 0.g, 0.10 O i \y�GATE c a /i �EX21 EX-27 EX-28 EX-29 35BR / 470 o / 510EX-30 )44 EX-31 i' - — 3A l /1 32 \ 1BR M ' / GMW-10 g0 / EX-33 / CCR-1 \� SCCR-1056R / '/ • 50o Szo CORRECTIVE ACTION PLAN - AREA A WELL NETWORK EXTRACTION SYSTEM 15 BEDROCK EXTRACTION WELLS (EX-24 THRU EX-38) E + i 510 i 530 \ / _---------- -------- CCR: \ 2 i \ \ 540 \\\\ — \\\\\ CONTRACTOR 560 DUKEI o a \\ --- - - ---- ENERG --- // 5so 590 PROGRESS N 590 600 err �4 1 S°\ STORM WATER POND' D I I 1 \\ \ \ 490 \\ \ I II I _ ------ -- \ j I PROPOSED EXTRACTION COLLECTION \ \\ �/ OWN NOV-_ PROPOSED EXTRACTION \ COLLECTION AND PUMP ST, WATER 0 I I Ir II II � II NOT FOR CONSTRUCTION GRAPHIC SCALE FIGURE 6-17a 100 0 50 100 200 REMEDIAL ALTERNATIVE 3 (IN FEET) WELL SYSTEM LAYOUT DRAWN BY: J. CHASTAIN DATE: 12/26/2019 GROUNDWATER REMEDIATION BY REVISED BY: - DATE:- EXTRACTION COMBINED WITH CLEAN WATER CHECKED BY: J CLEMMER DATE: 12/26/2019 INFILTRATION AND TREATMENT APPROVED BY: C EADY DATE: 12/26/2019 CORRECTIVE ACTION PLAN UPDATE PROJECT MANAGER: C. EADY ROXBORO STEAM ELECTRIC PLANT www.synterracorp.com SEMORA, NORTH CAROLINA