The URL can be used to link to this page

Home My WebLink AboutNC0003417_Application_202205184' DUKE ENERGY May 13, 2022 Sergei Chernikov, PhD Industrial Permitting Branch NC Division of Water Resources 1617 Mail Service Center Raleigh, NC 27699-1617 Subject: NPDES permit modification request H.F. Lee Energy Complex NC0003417 Wayne County Dear Dr. Chernikov, Duke Energy Progress, LLC H.F. Lee Energy Complex 1199 Black Jack Church Roaa Goldsboro, NC 27530 Duke Energy Progress, LLC (Duke Energy) hereby requests modification of the subject NPDES permit to include NPDES coverage of the Cooling Pond Seeps upon expiration or termination of Special Order by Consent (SOC) - WQ S 18-006 and to update the modified compliance boundary map as recently approved by the North Carolina Division of Water Resources on 2/23/2022. 1) Duke Energy is requesting addition of a special condition in the NPDES permit to provide permit coverage for the minor release of pollutants from areas of seepage around the site's 545 acre cooling pond. Background In 2014 Duke Energy conducted a comprehensive evaluation of all potential wastewater bason areas of seepage at the H.F. Lee Energy Complex. The areas of the survey included the site's ash basins and the wastewater cooling pond. Areas of seepage associated with the ash basins and cooling pond are currently covered and regulated by a Consent Order EMC SOC WQ S 18-006 between the North Carolina Environmental Management Commission and Duke Energy (the SOC). Upon completion of the SOC, regulatory oversight of seeps associated with the ash basin will be transferred to the sites groundwater corrective action plan (CAP) for continued monitoring and regulatory oversight. The groundwater CAP does not address the areas of seepage associated with the cooling pond. The cooling pond will continue to support the Combined Cycle Facility past the closure of the SOC. The wastewater cooling pond was historically used during coal fire operations but did not receive wastewater streams from any coal ash wastewater processes. The cooling pond continues to be an active operational component for the natural gas fired combined cycle plan and will be so for the foreseeable future with no current plan for closure. The cooling pond currently has two permitted outfalls: Outfalls 002 and Outfall 002A. There are 21 areas of minor seepages identified around the cooling pond's 4.63 mile perimeter dike: (CPSOI-CPS-21). These areas are depicted around the cooling pond on Attachment A Map - Cooling Pond Seeps. A list of these seeps and generalized areas of latitude and longitude are also in Attachment A. Chemical testing of the cooling pond seepage areas has revealed some contain minor concentrations of pollutants. During the 2021 seep sampling event, 6 of the 21 cooling pond seep areas exhibited sufficient flow to obtain a sample for analysis. These sample results are provided in Attachment B - October 2021 Cooling Pond Sample Results. Collectively, the observed volume of seepage flow is very low compared to the volume of other permitted wastewater discharges at the site. The sample result table in Attachment B demonstrates the total flow of the sampled seeps is approximately 0.1% of the average flow from the ash pond at Outfall 001. REQUESTS 1. Duke Energy requests inclusion of these cooling pond seepage areas in the NPDES Permit through reference in a special condition to assure complete and appropriate permit coverage. Duke Energy requests the existing instream monitoring requirements upstream and downstream of the site along with required inspections of the seepage areas in close proximity to the cooling pond dam in accordance with North Carolina Dam Safety requirements be deemed sufficient to monitor any influence from these areas. 2. Duke Energy requests the updated compliance boundary map approved by the North Carolina Division of Water Resources staff on 2/23/2022 be included in the modified NPDES permit. A copy of the updated compliance boundary map along with correspondence from Division approving the updated compliance boundary is included for reference. An electronic copy of the map can be provided upon request. A check in the amount of $1,030 is included with this submittal to cover the required permit modification fee. Should you have any questions about this request, please feel free to contact Joyce Dishmon at (336)623-0238. apk Superintendent Maintenance H.F. Lee Energy Complex Attachments Cc: Mike Graham Sharat Gollamudi Shannon Langley — via email Joyce Dishmon/FileNet — via email Attachment A Location map of Cooling Pond Seeps NPDES permit modification request H.F. Lee Energy Complex May 2022 ACTIVE ASH BASIN ICPS-i.. CPS-15 - 14 t�CPS-011 / I"� r �� ,=�"CPS-04 CPS-02I` .., • _ - _ LCPS-03 NEUSE RIVER Downstream 2 Neuse River CPS-201 CPS-19,'_' CPS-18 CPS-07 CPS-08 �� ENERGY PROGRESS 0 synTena Downstream OUTFALL 002a GRAPHIC SCALE 325 0 325 650 ON FEE, REVISED BY: C. WYATT CHECKED BY: C. PONCE APPROVED BY: N. FERRI PROJECT MANAGER' K FERRI • G1/00/2022 DATE: 01/31/2022 • 01/31/2022 DATE 01/31/2022 LEGEND • NON -CONSTRUCTED SEEP 1 IN -STREAM SURFACE WATER LOCATION PER SOC • NPDES OUTFALL LOCATION - ACTIVE ASH BASIN WASTE BOUNDARY ® SOC INSPECTION AREA - LAY OF LAND AREA BOUNDARY • DUKE ENERGY PROGRESS PROPERTY LINE • - STREAM (AMEC NRTR) SURFACE WATER FLOW DIRECTION WETLAND (AMEC NRTR) NOTES- 1. SOC - SPECIAL ORDER BY CONSENT 2. SEEP LOCATIONS ARE DESCRIBED IN EMC SOL WO 0518-000. 3. THE WATERS OF THE US DELINEATION SHOWN ON THIS MAP HAS NOT BEEN APPROVED BY THE US ARMY CORPS OF ENGINEERS. WETLANDS AND STREAMS BOUNDARIES WERE OBTAINED FROM LEEENERGYCOMPLEXDATEDJANUARY 20R2014 AND UPDATESRECEIVEDFROM AME=r 2017. L BOUNDARIES ARE APPROXIMATE. 5. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY PROGRESS. DECEMBER 5T 2LBLIe E IMAGERY OBTAINED FROM ESRI, COLLECTED BETWEEN NOVEMBER 1 AND T. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 32m (NADB3). FIGURE 2-1 EXISTING SEEP LOCATIONS AND INSPECTION AREAS COOLING POND SEEP REPORT H.F. LEE ENERGY COMPLEX GOLDSBORO, NORTH CAROLINA Attachment A 518-006 Duke Energy Progress, LLC — H. F. Lee Energy Complex, p.5 Seep ID Number Approximate Location Coordinates Description Receiving Waterbody Receiving Waterbody Classification SOC Monitoring Interim Action Levels Latitude Longitude CPS-01 35.37924 -78.07377 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-02 35.37901 -78.07298 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-03 35.37895 -78.06270 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-04 35.37902 -78.06707 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-05 35.37998 -78.06574 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-06 35.37179 -78.06642 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-07 35.37177 -78.06661 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply *Location previously investigated as a seep. Monitoring has not indicated the presence of coal combustion residuals. ** Seep dispositioned via repair and/or non -flowing condition to potentially reach WOTUS, or other, as noted. Monitoring shall be conducted at the approximate locations indicated on the attached site map. All monitoring shall be conducted per the requirements found in Attachment B of this Order. Attachment A S 18-006 Duke Energy Progress, LLC — H. F. Lee Energy Complex, p.6 Seep ID Number Approximate Location Coordinates Description Receiving Waterbody Receiving Waterbody Classification SOC Monitoring Interim Action Levels Latitude Longitude CPS-08 35.37711 -78.06780 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A— 2B Standards Apply CPS-09 35.36922 -78.07880 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-10 35.36840 -78.08125 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-11 35.36829 -78.08141 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A— 26 Standards Apply CPS-12 35.36816 -78.08156 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-13 35.37972 -78.07540 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-14 35.37963 -78.07527 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A— 28 Standards Apply *Location previously investigated as a seep. Monitoring has not indicated the presence of coal combustion residuals. ** Seep dispositioned via repair and/or non -flowing condition to potentially reach WOTUS, or other, as noted. Monitoring shall be conducted at the approximate locations indicated on the attached site map. All monitoring shall be conducted per the requirements found in Attachment B of this Order. Attachment A 518-006 Duke Energy Progress, LLC — H. F. Lee Energy Complex, p.7 Seep ID Number Approximate Location Coordinates Description Receiving Waterbody Receiving Waterbody Classification SOC Monitoring Interim Action Levels Latitude Longitude CPS-15 35.37962 -78.07460 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-16 35.37942 -78.07423 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-17 35.37465 -78.06165 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-18 35.37195 -78.06605 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-19 35.37192 -78.06625 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-20 35.37202 -78.06630 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply CPS-21 35.36983 -78.07580 Seep from the berm surrounding the cooling pond. Not a seep emanating from the active ash basin. Neuse River WS-IV; NSW Instream monitoring of the Neuse River N/A — 2B Standards Apply *Location previously investigated as a seep. Monitoring has not indicated the presence of coal combustion residuals. ** Seep dispositioned via repair and/or non -flowing condition to potentially reach WOTUS, or other, as noted. Monitoring shall be conducted at the approximate locations indicated on the attached site map. All monitoring shall be conducted per the requirements found in Attachment B of this Order. Attachment B October 2021 Cooling Pond Sample Results NPDES permit modification request H.F. Lee Energy Complex May 2022 Reporting Units Attachment B - October 2021 Cooling Pond Samples Data FIELD PARAMETERS ANALYTICAL RESULTS (TOTAL CONCENTRATION) S.U.I Deg C I umhos/cm I mg/L mV mV NTUs GPM ug/L 1 ug/L I ug/L ug/L I ug/L mg/L I mg/L I ug/L ug/L mg/L mg/L dug/L FIELD PARAMETERS ANALYTICAL RESULTS (TOTAL CONCENTRATION) Location ID Sample Collection Date pH Temperature Specific Conductance Dissolved Oxygen Oxidation Reduction Potential Eh Turbidity Flow Arsenic Barium Boron Bromide Cadmium Calcium Chloride Chromium Copper Fluoride Hardness Lead filtered Z Z Z Z Z Z Z Z TOT TOT TOT Z TOT TOT Z TOT TOT Z Z TOT CPS-01 10/18/2021 7.1 22 292 3.40 -114 91 15.6 3.5 13.3 42 64 350 <0.1 10.4 28 <1 <2 0.37 42.5 <0.2 CPS-02 10/18/2021 7.0 23 267 1.67 -102 103 7.9 1.5 11.6 41 63 340 <0.1 9.37 27 <1 <2 0.36 39.6 <0.2 CPS-09 10/19/2021 6.7 17 328 4.25 -31 174 42.4 5 4.8 52 60 370 <0.1 8.26 28 <1 <2 0.49 49.1 <0.2 CPS-18 10/19/2021 7.0 17 237 5.85 125 330 79.1 2.8 1.7 35 57 340 <0.1 8.62 26 <1 <2 0.31 37.4 <0.2 CPS-20 10/19/2021 7.0 19 232 4.48 -20 185 39.2 7 2.23 43 51 340 <0.1 8.36 27 1.09 <2 0.35 37.8 1.02 CPS-21 10/19/2021 7.0 13 287 8.20 -17 188 28.8 3.5 <1 23 54 370 <0.1 8.75 31 <1 <2 0.59 46.7 <0.2 Reporting Units FIELD PARAMETERS ANALYTICAL RESULTS (TOTAL CONCENTRATION) S.U. Deg C I umhos/cm I mg/L mV mV NTUs GPM mg/L ug/L I ug/L mg-N/L I mg/L ug/L I mg/L I ug/L mg/L mg/L ug/L FIELD PARAMETERS ANALYTICAL RESULTS (TOTAL CONCENTRATION) Location ID Sample Collection Date pH Temperature Specific Conductance Dissolved Oxygen Oxidation Reduction Potential Eh Turbidity Flow Magnesium Mercury Nickel Nitrate + Nitrite Oil and grease Selenium Sulfate Thallium Total Dissolved Solids Total Suspen ded Solids Zinc filtered Z Z Z Z Z Z Z Z TOT TOT TOT Z Z TOT Z TOT Z Z TOT CPS-01 10/18/2021 7.1 22 292 3.40 -114 91 15.6 3.5 4.04 0.00117 <1 0.06 <5 <1 <0.1 <0.2 143 10 <5 CPS-02 10/18/2021 7.0 23 267 1.67 -102 103 7.9 1.5 3.92 0.00134 <1 0.06 <5 <1 <0.1 <0.2 145 33 <5 CPS-09 10/19/2021 6.7 17 328 4.25 -31 174 42.4 5 6.9 0.00302 <1 0.08 <5 <1 <0.1 <0.2 150 46 <5 CPS-18 10/19/2021 7.0 17 237 5.85 125 330 79.1 2.8 I 3.86 <0.0005 <1 0.14 <5 <1 10 <0.2 141 19 R1 <5 CPS-20 10/19/2021 7.0 19 232 4.48 -20 185 39.2 7 4.12 0.01 <1 0.09 <5 <1 4.4 <0.2 135 80 <5 CPS-21 10/19/2021 7.0 13 287 8.20 -17 188 28.8 3.5 6.04 <0.0005 <1 0.09 <5 <1 <0.1 <0.2 151 7.6 <5 Reporting Units FIELD PARAMETERS ANALYTICAL RESULTS (DISSOLVED CONCENTRATION) S.U.I Deg C I umhos/cm I mg/L mV mV NTUs GPM ug/L ug/L I ug/L ug/L I ug/L ug/L I ug/L FIELD PARAMETERS ANALYTICAL RESULTS (DISSOLVED CONCENTRATION) Location ID Sample Collection Date pH Temperature Specific Conductance Dissolved Oxygen Oxidation Reduction Potential Eh Turbidity Flow Arsenic Cadmium Chromium Copper Lead Nickel Zinc filtered Z Z Z Z Z Z Z Z DIS DIS DIS DIS DIS DIS DIS CPS-01 10/18/2021 7.1 22 292 3.40 -114 91 15.6 3.5 11.3 <0.1 <1 <2 <0.2 <1 <5 CPS-02 10/18/2021 7.0 23 267 1.67 -102 103 7.9 1.5 11.4 <0.1 <1 <2 <0.2 <1 <5 CPS-09 10/19/2021 6.7 17 328 4.25 -31 174 42.4 5 2.74 <0.1 <1 <2 <0.2 <1 <5 CPS-18 10/19/2021 7.0 17 237 5.85 125 330 79.1 2.8 <1 <0.1 <1 <2 <0.2 <1 <5 CPS-20 10/19/2021 7.0 19 232 4.48 -20 185 39.2 7 1.82 <0.1 <1 <2 <0.2 <1 <5 CPS-21 10/19/2021 7.0 13 287 8.20 -17 188 28.8 3.5 <1 <0.1 <1 <2 <0.2 <1 <5 Dishmon, Joyce Martin From: Smith, Eric G <eric.g.smith@ncdenr.gov> Sent: Wednesday, February 23, 2022 10:29 AM To: Toepfer, John R Cc: Sullivan, Ed M; Davies, Scott E.; Costner, Brandy F; Campbell, Ted; Wang, Shuying; Harbison, Joanna A; Hart, William; Rice, Eric; Chernikov, Sergei; Giri, Poonam a; Benzoni, Francisco J; Hanchey, Matthew F.; Poupart, Jeff Subject: [EXTERNAL] Duke Energy: Compliance Boundary Approvals Attachments: 2019_07_22 Rogers Energy Complex Revised Boundary.pdf; 2019_10_09 Allen Steam Station Updated Boundary.pdf; 2019-09-17 Duke Energy Mayo Land Acquisition.pdf; 2020_10_22 Buck Steam Station Updated Boundary Submittal.pdf; 2021-02 Asheville Property Acquistion.pdf; Duke subittal of HF Lee Compliance Boundary Change - October 2020.pdf; DukeEnergy_BelewsCreek_UpdatedAshBasinComplianceBoundary_20200311.pdf; 07_26_21 Marshall Steam Station Updated Boundary Submittal.pdf *** CAUTION! EXTERNAL SENDER *** STOP. ASSESS. VERIFY!! Were you expecting this email? Are grammar and spelling correct? Does the content make sense? Can you verify the sender? If suspicious report it, then do not click links, open attachments or enter your ID or password. John: The following proposed compliance boundary updates were submitted to DEQ by Duke Energy since 2019 (also attached): • Allen Steam Station — submitted 10/9/19 • Asheville Steam Electric Plant — submitted 2/10/21 o DEQ understands that Duke has documentation of ownership for the land under 1-26 that is included in the updated compliance boundary map. DEQ will approve this proposed change to the compliance boundary upon receipt of that documentation. • Belews Creek Steam Station — submitted 3/11/20 • Buck Combined Cycle Station — submitted 10/22/20 • James E. Rogers Energy Complex (Cliffside) — submitted 7/22/19 • H. F. Lee Energy Complex — submitted 10/16/20 • Marshall Steam Station — submitted 7/26/21 • Mayo Steam Electric Plant —submitted 9/17/19 DEQ hereby approves the proposed changes to the compliance boundary at each of these sites. These maps will be included in the facility NPDES permit the next time the permit is renewed or modified. Additional Compliance Boundary Issues The following issues are currently being reviewed by DEQ and will be handled in a separate correspondence: • For the Cape Fear Steam Electric Plant, a different configuration of the compliance boundary was included in the updated Comprehensive Site Assessment Report (submitted December 1, 2020) than is depicted in the current NPDES permits. • For the W. H. Weatherspoon Power Plant, a question exists regarding whether the Cooling Pond has a compliance boundary. -Eric G. Smith 1 Eric G. Smith Environmental Program Consultant Ground Water Resources Section Division of Water Resources Department of Environmental Quality 919 707 3669 office eric.q.smith@ncdenr.gov 512 N. Salisbury St 1636 Mail Service Center Raleigh, NC 27699-1636 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. 2 efais DUKE ENERGY® October 16, 2020 Mr. S. Daniel Smith Director of Water Resources North Carolina Department of Environmental Quality 1636 Mail Service Center Raleigh, North Carolina 27699-1636 410 S. Wilmington Street. Raleigh, NC 27601 Mailing Address Mail Code NC 15 Raleigh, NC 27601 919-546-7863 Subject: Duke Energy Progress, LLC. Updated Ash Basin Compliance Boundary for the H.F. Lee Energy Complex, Wayne County, North Carolina, NPDES Permit No. NC0003417 Dear Mr. Smith: Duke Energy completed a property purchase nearby to the H.F. Lee Energy Complex on September 15, 2020. Per 15A NCAC 02L .0107 (c), this letter serves as notification of the change to the ash basin compliance boundary due to this land purchase. Attached you will find an updated compliance boundary to reflect the new property boundary. This information is also being provided to the Washington Regional Office. If you have any questions or need any clarification regarding the information provided, feel free to contact me at john.toepfer@duke-energy.com or at 919-546-7863 at your convenience. Respectfully submitted, Sohn Toepfer, P.E. Lead Engineer, Duke Energy EHS CCP Waste & Groundwater Programs Attachments: Figure 1-2B, Site Layout Map cc: Rick Bolich, Eric Smith and Steve Lanter - NCDEQ Central Office Will Hart and David May - NCDEQ Washington Regional Office Ed Sullivan, Tyler Hardin, Matt Hanchey, Joyce Dishmon — Duke Energy IMW-1 BC • • IMW-2BC 1 1 • • 1 SMW-4 IMW-4S IMW-4BC IABMW-1 IABMW-1 S `SMW-5 IMW-35 '. IMW-3BC 4 if '•••,1...7. / . INACTIVE ASH BA SW 1 [PZ-7 INACTWE ASH BASIN 3 PZ-6 PZ-4 41, IABMW-2 IABMW-2S IABMW-3 IABMW-3S IMW-5S IMW-5BC 1 I OUTFALL GO5aj f OUTFALL 005b I in, ! • I ! CW-11 • 14 1 • 4OUTFALLOO4] a ." ■ e - • • - • - -.— LEGEND ® MONITORING WELL IN ASH POREWATER • MONITORING WELL IN SURFICIAL FLOW ZONE q, MONITORING WELL IN CAPE FEAR FLOW ZONE ® BACKGROUND MONITORING WELL t PIEZOMETER IN SURFICIAL FLOW ZONE ■ NPDES OUTFALL LOCATION PURCHASED PARCELS WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY — FORMER COAL FIRED POWER PLANT DUKE ENERGY PROGRESS PROPERTY LINE • STREAM (AMEC) WETLAND (AMEC) SURFACE WATER FLOW DIRECTION NOTES; 1- NPDES - NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM 2- THE WATERS OF THE US SHOWN ON THIS MAP HAVE NOT BEEN APPROVED BY THE US ARMY CORPS OF ENGINEERS. WETLANDS AND STREAMS BOUNDARIES WERE OBTAINED FROM AMEC FOSTER AND WHEELER(AMEC) NATURAL RESOURCES TECHNICAL REPORT FOR H.F. LEE ENERGY COMPLEX DATED JANUARY 20, 2014 AND UPDATES RECEIVED FROM AMEC IN MAY 2017. 3- ALL BOUNDARIES ARE APPROXIMATE. 4- PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY PROGRESS. 5. AERIAL PHOTOGRAPHY OBTAINED FROM TERRASEVER ON JUNE 18, 2019- AERIAL WAS COLLECTED ON JANUARY 9, 2019. 6. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200 (NADS3). EEN RGY PROGRESS GRAPHIC SCALE 250 0 250 (IN FEETI 50•. synTerra DRAWN BY: C. CURRIER REVISED BY. C. CURRIER CI-ECKED BY: APPROVED BY. PROJECT MANAGER: C. PONCE DATE: 1.0/07/2020 DATE: 10/07/2020 DATE: 10/07/2020 DATE: 10/07/2020 www.svnterracorp.com FIGURE 1-26 SITE LAYOUT MAP GROUNDWATER MONITORING WELLS INACTIVE ASH BASINS 2020 COMPREHENSIVE SITE ASSESSMENT UPDATE H.F. LEE ENERGY COMPLEX GOLDSBORO, NORTH CAROLINA I• ♦ • 1 INACTIVE i ASH BASIN 1 I• INACTIVE 1 ASH I♦ j BASIN 2•I♦ I I ♦ f it —. `%(• ,`4,. i � S4S� 1• • ♦4. 44441 • !* 1 .. 1 a INACTIVE ASH BASIN 3 1 I .. gjaG Y PROGRESS synTerra DRAWN BY: T. KING REVISED BY: T. KING CHECKED BY: K. FERRI APPROVED BY: K. FERRI PROJECT MANAGER: K. FERRI DATE: 05/03/2019 DATE: 05/16/2022 DATE: 05/16/2022 DATE: 05/16/2022 www.s nterracor..com LEGEND ACTIVE ASH BASIN WASTE BOUNDARY ACTIVE ASH BASIN COMPLIANCE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN COMPLIANCE BOUNDARY - • DUKE ENERGY PROGRESS PROPERTY LINE NOTES: 1. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY PROGRESS. 2. AERIAL PHOTOGRAPHY OBTAINED FROM ESRI ONLINE BASEMAP SERVICE ON MAY 16, 2022. IMAGERY DATED JANUARY 29, 2021. 3. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). FIGURE 1 WASTE AND COMPLIANCE BOUNDARIES H.F. LEE ENERGY COMPLEX GOLDSBORO, NORTH CAROLINA