g g ! > ! > ! > ! > ! > ! > # # # # # # # # POWER PLANT BG-2 (507.09) BG-1 (503.55) CW-1 (470.04) CW-1D (472.32) CW-2 (375.14) CW-2D (375.14) CW-3 (421.59) CW-4 (428.78) CW-5 (498.91) CW-6 (448.50) 500 400 500 500 500 400 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 400 480 520 460 540 440 420 380 560 460 480 380 480 540 480 440 520 460 520 460 440 480 480 520 520 520 480 480 420 520 480 540 480 440 480 440 460 480 440 480 420 460 520 460 460 460 440 520 480 460 480 460 480 460 440 520 480 420 420 440 460 560 460 540 440 480 480 460 440 520 480 420 440 480 440 440 480 520 460 480 480 520 520 540 ACTIVE ASH POND 1981 LANDFILL PERMIT NO. 73-B ´ 0 600 1,200 300 Feet DRAWING PATH: 1 1 NC ENG. LICENSE #F-0176 PHONE: (919) 872-2660 3201 SPRING FOREST ROAD, RALEIGH, NC 27616 NO. DATE DESCRIPTION BY WWW.SMEINC.COM JBP 1" = 300' December, 2010 MAYO ELECTRIC PLANT PROGRESS ENERGY ROXBORO, NORTH CAROLINA COMPLIANCE WELL NETWORK MAP 1584-10-027 DRAWN BY: DESIGNED BY: SCALE: DATE: PROJECT NO: DRAWING: OF: CHECKED BY: APPROVED BY: DRAWING NUMBER: TOPO SOURCE: NCDOT LIDAR, DATED 2007 IMAGE SOURCE: NC ONEMAP, PERSON CO., DATED 2008 PARCEL SOURCE: PERSON COUNTY GIS, RECEIVED JAN . 2010 LANDFILL BOUNDARY COORDINATES SOURCE: NCDHR DIVISION OF HEALTH SERVICES SOLID WASTE MANAGEMENT 1981 PERMIT NO. 73-B OBJECTS ARE SHOWN IN GENERAL ARRANGEMENT FOR ILLUSTRATION PURPOSES. THE LOCATIONS OF OBJECTS SHOWN ARE NOT NECESSARILY ACCURATE AND HAVE NOT BEEN SURVEYED. COMPLIANCE WELLS CW-1D AND CW-2D WERE NOT USED TO ESTIMATE GROUNDWATER FLOW Legend # BACKGROUND WELL # COMPLIANCE WELL LOCATION ! > 1981 LANDFILL BOUNDARY COORDINATES COMPLIANCE BOUNDARY POWER PLANT !! !!!! !! !!! APPROXIMATE 1981 LANDFILL BOUNDARY WASTE BOUNDARY PARCEL BOUNDARY CONTOUR INTERVAL 20 FT EQH 420 400 440 460 480 500 380 Well ID Position Use Total Depth Well Screen Interval Date Well Installed Northing Easting Ground Elevation Top of Casing Elevation Depth to Groundwater Groundwater Elevation Driller 12/2/2010 12/2/2010 (feet bg) (feet bg) (NAVD 88) (NAVD 88) (feet) (feet) CW-1 Down-gradient Compliance 25.5' 15.5' -25.0' 11/9/2010 1012696.5440 2032714.4560 486.96 489.88 19.84 470.04 S&ME Inc. CW-1D Down-gradient Compliance 40.4 30.1' -39.9' 11/8/2010 1012703.5510 2032715.6520 488.31 490.96 18.64 472.32 S&ME Inc. CW-2 Down-gradient Compliance 18.0 7.7' -17.5' 11/11/2010 1015043.9769 2032238.7054 386.56 389.00 13.86 375.14 S&ME Inc. CW-2D Down-gradient Compliance 55.9 45.6' -55.4' 11/11/2010 1015046.8768 2032245.0242 386.93 389.53 14.39 375.14 S&ME Inc. CW-3 Down-gradient Compliance 32.3 17.0' -31.8' 11/16/2010 1015647.5866 2031278.0254 435.27 437.68 16.09 421.59 S&ME Inc. CW-4 Down-gradient Compliance 40.3 35.0' -39.8' 11/12/2010 1015911.4360 2030436.2730 448.76 451.31 22.53 428.78 S&ME Inc. CW-5 Down-gradient Compliance 41.6 36.3' -41.1' 11/15/2010 1015162.2330 2029182.2900 507.21 509.60 10.69 498.91 S&ME Inc. CW-6 Down-gradient Compliance 77.4 72.1' -76.9' 11/10/2010 1014743.8185 2033046.0768 459.97 462.83 14.33 448.50 S&ME Inc. BG-1* Up-gradient Background 52' 42' -52' 10/15/2008 1012000.5230 2028480.3790 537.50 540.19 36.64 503.55 Quantex, Inc. BG-2 Up-gradient Background 45.3 25.4' - 44.9' 9/28/2010 1010810.0210 2028799.4340 539.84 542.66 35.57 507.09 Quantex, Inc. McKim & Creek provided the well coordinates and top of casing elevations based on measurements obtained on December 2010 feet bg = feet below grade BG-1* = Former well MW-1 installed by Quantex, Inc. on October 15, 2008 (831.20) GROUNDWATER ELEVATION CONTOUR GROUNDWATER ELEVATION (12-2-2010)

0 CW-4 Quality/Aquifer...CW-2D Down-gradient Compliance 55.9 45.6' -55.4' 11/11/2010 1015046.8768 2032245.0242 386.93 389.53 14.39 375.14 S&ME Inc. CW-3 Down-gradient Compliance 32.3

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POWER PLANTBG-2(507.09)

BG-1(503.55)

CW-1(470.04)CW-1D(472.32)

CW-2(375.14)CW-2D(375.14)

CW-3(421.59)

CW-4(428.78)

CW-5(498.91)

CW-6(448.50)

500

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520

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420460

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460

460

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460 480

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440

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420420

440460

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520480

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ACTIVE ASH POND

1981 LANDFILL PERMIT NO. 73-B

´

0 600 1,200300 FeetDRAWING P

ATH:

1 1

NC EN

G. LICE

NSE #

F-0176

PHON

E: (919

) 872-2

660320

1 SPR

ING FO

REST

ROAD

, RALEI

GH, NC

27616

NO.

DATE

DESC

RIPTIO

NBY

WWW.

SMEIN

C.COM

JBP

1" = 300' December, 2010

MAYO

ELEC

TRIC P

LANT

PROG

RESS

ENER

GYRO

XBORO

, NORTH

CARO

LINA

COMP

LIANC

E WELL

NETWO

RK MA

P

1584-10-027

DRAWN BY:

DESIGNED BY:

SCALE: DATE:

PROJECT NO:

DRAWING: OF:

CHECKED BY:

APPROVED BY:

DRAWING NUMBER:

TOPO SOURCE:NCDOT LIDAR, DATED 2007IMAGE SOURCE:NC ONEMAP, PERSON CO., DATED 2008PARCEL SOURCE:PERSON COUNTY GIS, RECEIVED JAN . 2010LANDFILL BOUNDARY COORDINATES SOURCE:NCDHR DIVISION OF HEALTH SERVICESSOLID WASTE MANAGEMENT 1981 PERMIT NO. 73-BOBJECTS ARE SHOWN IN GENERAL ARRANGEMENTFOR ILLUSTRATION PURPOSES. THE LOCATIONS OFOBJECTS SHOWN ARE NOT NECESSARILY ACCURATEAND HAVE NOT BEEN SURVEYED.COMPLIANCE WELLS CW-1D AND CW-2D WERE NOT USED TO ESTIMATE GROUNDWATER FLOW

Legend# BACKGROUND WELL# COMPLIANCE WELL LOCATION!> 1981 LANDFILL BOUNDARY COORDINATES

COMPLIANCE BOUNDARYPOWER PLANT

!!

! ! ! !!!!!! APPROXIMATE 1981 LANDFILL BOUNDARY

WASTE BOUNDARYPARCEL BOUNDARYCONTOUR INTERVAL 20 FT

EQH

420 400440460

480

500

380

Well ID Position Use Total Depth Well Screen Interval Date Well Installed Northing Easting Ground Elevation Top of Casing Elevation Depth to Groundwater Groundwater Elevation Driller12/2/2010 12/2/2010

(feet bg) (feet bg) (NAVD 88) (NAVD 88) (feet) (feet)CW-1 Down-gradient Compliance 25.5' 15.5' -25.0' 11/9/2010 1012696.5440 2032714.4560 486.96 489.88 19.84 470.04 S&ME Inc.

CW-1D Down-gradient Compliance 40.4 30.1' -39.9' 11/8/2010 1012703.5510 2032715.6520 488.31 490.96 18.64 472.32 S&ME Inc.CW-2 Down-gradient Compliance 18.0 7.7' -17.5' 11/11/2010 1015043.9769 2032238.7054 386.56 389.00 13.86 375.14 S&ME Inc.

CW-2D Down-gradient Compliance 55.9 45.6' -55.4' 11/11/2010 1015046.8768 2032245.0242 386.93 389.53 14.39 375.14 S&ME Inc.CW-3 Down-gradient Compliance 32.3 17.0' -31.8' 11/16/2010 1015647.5866 2031278.0254 435.27 437.68 16.09 421.59 S&ME Inc.CW-4 Down-gradient Compliance 40.3 35.0' -39.8' 11/12/2010 1015911.4360 2030436.2730 448.76 451.31 22.53 428.78 S&ME Inc.CW-5 Down-gradient Compliance 41.6 36.3' -41.1' 11/15/2010 1015162.2330 2029182.2900 507.21 509.60 10.69 498.91 S&ME Inc.CW-6 Down-gradient Compliance 77.4 72.1' -76.9' 11/10/2010 1014743.8185 2033046.0768 459.97 462.83 14.33 448.50 S&ME Inc.BG-1* Up-gradient Background 52' 42' -52' 10/15/2008 1012000.5230 2028480.3790 537.50 540.19 36.64 503.55 Quantex, Inc.BG-2 Up-gradient Background 45.3 25.4' - 44.9' 9/28/2010 1010810.0210 2028799.4340 539.84 542.66 35.57 507.09 Quantex, Inc.

McKim & Creek provided the well coordinates and top of casing elevations based on measurements obtained on December 2010feet bg = feet below gradeBG-1* = Former well MW-1 installed by Quantex, Inc. on October 15, 2008

(831.20)GROUNDWATER ELEVATION CONTOURGROUNDWATER ELEVATION (12-2-2010)