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Home My WebLink AboutNC0003417_2021 Annual Seep Survey Report_20210426 RECEWED/NCDENR/DWR e& DUKE James Wells ENERGY Vice President APR 2 9 2022 Environmental, Health and Safety Programs&Environmental Sciences 526 South Church Street Water Quality Charlotte,NC 28202 Regional Operations Section (980)373-9646 Washington Regional Office April 26, 2021 David May Washington Regional Supervisor North Carolina Department of Environmental Quality Division of Water Resources 943 Washington Square Mall Washington, NC 27889 Bob Sledge North Carolina Department of Environmental Quality Water Quality Permitting Program Division of Water Resources 1617 Mail Service Center Raleigh,NC 27699-1617 Subject: Report Under Special Order by Consent—EMC SOC WQ S 18-006 Duke Energy Progress, LLC—H.F. Lee Steam Station NPDES Permit NC0003417 2021 Annual Seep Survey Report Dear Messrs. May and Sledge: On behalf of Duke Energy Progress, LLC (DEP), I am submitting to you the H.F. Lee Steam Station Annual Seep Survey Report as required by Section 2.b.4 of the subject Special Order by Consent(SOC). As required by the SOC, I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief true, accurate, and complete. lam aware that there are significant penalties for submitting false information, including the possibility of f ne and imprisonment for knowing violations. Messrs. May and Sledge April 26, 2021 Page 2 Please direct any questions concerning the H.F. Lee Steam Station NPDES Permit NC0003433 SOC No. S19-006 to Shannon Langley at (919) 546-2439 or shannon.langley@duke- energy.com. Sincerely, James Wells Vice President,Environmental, Health& Safety Programs and Environmental Sciences Duke Energy Attachment Weatherspoon Steam Station 2021 Annual Seep Survey CC: Jessica Bednarcik,Duke Energy Richard Baker,Duke Energy Joyce Dishmon, Duke Energy Mike Graham, Duke Energy Matt Hanchey, Duke Energy Shannon Langley, Duke Energy synTerm Science & Engineering Consultants synterracorp_com 2021 ANNUAL SEEP REPORT H.F. LEE ENERGY COMPLEX EMC SOC WQ S18-006 1199 BLACK JACK CHURCH ROAD GOLDSBORO, NC 27530 APRIL 2022 PREPARED FOR DUKE ENERGY PROGRESS DUKE ENERGY PROGRESS, LLC tC1--.' 4 Kathryn W. Webb �,,� y,�� Kelly Ferri Senior Peer Review •.•`�Q�tr1 CAf{0��",, Project Manager • • %/�>CE NSFp�Y9 : SEAL 446 T. c Q. ►� ytialter Gerald, C L.G. #0446 �''•ll£R ��G� , Senior Hydrogeologist ,�q,4,pp'1',, 2021 Annual Seep Report H.F. Lee Energy Complex Goldsboro, NC TABLE OF CONTENTS SECTION PAGE 1.0 INTRODUCTION 1-1 2.0 FINDINGS 2-1 2.1 General Observations 2-1 2.2 Effects of Decanting 2-1 2.3 Changes to Seep Status 2-1 3.0 REFERENCES 3-1 LIST OF FIGURES Figure 1 Seep Locations and Inspection Area LIST OF TABLES Table 1 Seep Locations and Descriptions — August 2021 Inspection LIST OF APPENDICES Appendix A Photographs April 2022 Page I Project:00.0061.20 2021 Annual Seep Report H.F. Lee Energy Complex Goldsboro, NC 1.0 INTRODUCTION On August 24 and 25, 2021, Walter Gerald (NC L.G. #0446) of SynTerra inspected the H.F. Lee Energy Complex (H.F. Lee or Site) property for existing and potential new seeps. General observations include: • Previously unidentified seeps were not observed during the inspection. • Notable changes to seeps were not observed during the inspection. Observations are consistent with past inspections. • Seeps eliminated by decanting of the Active Ash Basin are consistent with past observations. • The decanting target for the Active Ash Basin was reached in November 2018. • Dewatering of the Active Ash Basin began in July 2019 and is ongoing. • Removal of ash from the Active Ash Basin began in September 2020 and is ongoing. Inspection activities were performed in accordance with North Carolina Environmental Management Commission (EMC) Special Order by Consent (SOC) WQ#S18-006. The SOC describes inspection requirements as follows: Duke Energy shall conduct annual comprehensive surveys of areas down gradient of the ash basins, the Lay of Land Area (LOLA) and the cooling pond, identifying new seeps, and documenting the physical characteristics of previously documented seeps. All examinations of seeps must include identification of seeps by approximate latitude and longitude and date-stamped digital photographs of their appearance. A report summarizing the findings of the surveys, including a section analyzing the effect decanting of the basin(s) has on seep flows, accompanied by copies of the photographs noted above ("Annual Seep Report"), shall be submitted to DWR in conjunction with submittal of the April 30 quarterly report noted in 2(b)(3) above. This Annual Seep Report must list any seep that has been dispositioned (as described below) during the previous year, including an analysis of the manner of disposition. Each location documented as a seep at issuance of the SOC, as listed in Table 1, was observed and documented with photographs during the inspection. The weather was clear to partly cloudy before and during the inspection. Temperatures ranged from approximately 75 to 90 degrees Fahrenheit. No rain was recorded at the on-Site weather station over the period of August 21 to August 25, 2021, including the two days of seep inspections. April 2022 Page 1-1 Project:00.0061.20 2021 Annual Seep Report H.F. Lee Energy Complex Goldsboro, NC Mr. Gerald reviewed previous seep inspection reports and the weekly dam safety inspection reports for the Site's four ash basins: • Active Ash Basin (AAB) • Inactive Ash Basin 1 (IAB1) • Inactive Ash Basin 2 (IAB2) • Inactive Ash Basin 3 (IAB3) Sharat Gollamudi (Duke Energy system owner) conducted the ash basin dam safety inspections and prepared those reports. Observations from the dam safety inspection reports were consistent with observations made during the seep inspection. The inspection included observations in the following areas (Figure 1): • Along the shore of the Neuse River and Halfmile Branch • Areas along and downgradient of the ash basin dams • Drainage features associated with the ash basins Seep locations and inspection areas are shown on Figure 1. Observations noted during the inspection are summarized on Table 1. Representative photographs taken of each seep location during the inspection are included in Appendix A. April 2022 Page 1-2 Project:00.0061.20 2021 Annual Seep Report H.F. Lee Energy Complex Goldsboro, NC 2.0 FINDINGS 2.1 General Observations Inspection observations for each seep are described in Table 1. The following general observations were noted during the inspection: • New seeps were not observed during the inspection. • Dewatering equipment/piping was observed at the edge of the Neuse River on the southwest side of the AAB. • The United States Geological Survey (USGS) gage station (02089000) located approximately 10 miles downstream reported the Neuse River ranged from approximately 5.2 feet to 4.8 feet and was falling over the two days of inspection. • Several seeps previously determined to be below the ordinary high water mark were observed along the AAB and cooling pond areas due to low river levels. 2.2 Effects of Decanting Decanting of the AAB at H.F. Lee commenced in April 2016 and was completed in November 2018. Dewatering of ash pore water began July 2019 in the AAB and is ongoing. Decanting of the AAB has reduced seep flow to the perimeter ditch in areas north, east, and west of the AAB. North of the AAB, no flow was observed at S-01 and S-06. Seeps S-27 and S-28 exhibited reduced flow compared to previous observations. East of the AAB, no flow was observed at 5-07, and 5-08 exhibited reduced flow compared to past inspections. West of the AAB, no flow was observed at S-02. Decanting of the AAB does not appear to have reduced seep flow in areas south of the AAB (5-22, S-23, S-24, S-25, and S-26). 2.3 Changes to Seep Status Mr. Gerald inspected each seep to evaluate whether it met requirements to be dispositioned in accordance with the SOC.The requirements for dispositioning a seep are as follows: For purposes of this Special Order, "dispositioned"includes the following: (1) the seep is dry for at least three consecutive quarters;(2)the seep does not constitute, and does not flow to, waters of the State or Waters of the United States for three consecutive quarters;(3) the seep is no longer impacted by flow from any coal ash basin as determined by the Director of DWR in accord with applicable law and best professional judgment; or (4) the seep has been otherwise eliminated (e.g., through an engineering solution). If a seep that has been dispositioned through drying up reappears in any subsequent survey, such a seep will no longer be deemed dispositioned and can be subsequently re-dispositioned as specified above. April 2022 Page 2-1 Project:00.0061.20 2021 Annual Seep Report H.F. Lee Energy Complex Goldsboro, NC Seeps LOLA S-01, S-01, S-02, S-04, S-06, and S-07 have been observed as dry or not flowing to Waters of the State or Waters of the United States for more than three consecutive quarters. Those seeps were proposed for dispositioning in the 2021 Final Seep Report(SynTerra, 2021), and Duke Energy has requested that the North Carolina Department of Environmental Quality (NCDEQ) review and certify that they be dispositioned in accordance with the terms of the SOC. April 2022 Page 2-2 Project:00.0061.20 2021 Annual Seep Report H.F. Lee Energy Complex Goldsboro, NC 3.0 REFERENCES North Carolina Department of Environmental Quality. (2019). Special Order by Consent EMC SOC WQ S18-006. SynTerra (2021). 2021 Final Seep Report. H.F. Lee Energy Complex. October 29, 2021. April 2022 Page 3-1 Project:00.0061.20 2021 Annual Seep Report H.F. Lee Energy Complex Goldsboro, NC FIGURE ‘.41d s ynTe rra Science & Engineering Consultants II 1 I • ' I. \.A I > \ �•' ,-04„1.?' •---..— ' LS-02VY ••\ �•' •` �, IB�C S 0`I • P E_12I. o 4c�s 04i s'A / Y'1'. , i / .'o1F.,�s i J 11S23I .1 • • - I1C)IA.`S OTRV7.,... . I eas LEGEND • ` • NON-CONSTRUCTED SEEP ILOLAS OI - •••,.. Cas-1>1 'CPS-207'PS 18I..: • DISPOSITIONED SEEP ,�_..— _____�-.•—--. - CPS 13f .: C'S 011 CPS i•,K —ACTIVE ASH BASIN WASTE BOUNDARY ® — �� CPS-O8� ' DUKE ENERGY BASIN RE STE BOUNDARY PS+ CPS-08I- :' .DUKE ENERGY PROGRESS PROPERTY LINE ...,� ®SOC INSPECTION AREA `CPS-2f I ;,;3}}'Y`Op -�STREAM(AMEC NRTR) T • CPS 09J •r SURFACE WATER FLOW DIRECTION t. :A"Ivi.' ilk-:,•-,• _ •�••r•.` I a � LCPS 1' .. ®WETLAND(AMEC NRTR) "rCPS-10 earn 'AA . ,,i- ,-r I o 1 d BDC.SPECIALOPOEX BY CONSENT C.5-12 • 2 SEEP LOCATIONS...DESCRIBED N EMC SOD WDAGIB DE •A — SME WATERS OF THE US RHOMM ON THIS Mr;HAVE Nor BEEN APwovED BETMF US ARMY CORPS OF • ENGINEEERRS.AETANDS AND STREAMS BOuNOARIES NEEL oOrAINED mom A4Ec FFosTE AND '\ / TI f w .. DATEDM.1ARY p.NATURAL1 AND IPOATE3 TECHNICAL lit IMEc IN MA Fp v 201i. Es V BGuxouLEBARE/iVROpEIATE •' B • +: r ? ,EROFERDE IOLDIOA O°,eV DUKE ENERGY PROGRESS. \ nDAAARSAT,EL IMAGERYE OBTAINED FROM EMI.COLLECTED BMITAI:EM NOVEABER I AND DECEMBER• ~ . J/„.raWRNG0�� APR02CT!.DE NORTH GARDENA STATE R ARE COORMATF \ .�./ y { RSS"WINDWI."'" \ ....... '. � DUKE Boo R nIIA ifieSls 00E L210 FIGURE 1 ENERGY ===== SEEP LOCATIONS AND INSPECTION AREA '•./• PROGRESS DRAWN Or A.ENHAEFEN DATE:UA/JG/2021 2021 ANNUAL SEEP REPORT CRDASEDRECRE BI:CNYATT DATE:10/21/2021 )' *- `1 aEaEDBY.r.cRANr DATE:mn1/2G21 H.F.LEE ENERGY COMPLEX ... ktic: � � / APPROVED w:X.FERRI DATE:IO/2172021 S�TeRa I«aECTMwnfxKTERRI GOLDSBORO,NORTH CAROLINA www.SwillerraCorp.com 2021 Annual Seep Report H.F. Lee Energy Complex Goldsboro, NC TABLE .411, Te rra Science & Engineering Consultants TABLE 1 SEEP LOCATIONS AND DESCRIPTIONS-AUGUST 2021 INSPECTION 2021 ANNUAL SEEP REPORT H.F.LEE ENERGY COMPLEX DUKE ENERGY PROGRESS,LLC,GOLDSBORO,NC Seep ID Location Coordinates Receiving Receiving Interim Waterbody Description... SOC Monitoring Action Notes from 2021 Inspection Number Watarhody Latitude Longitude Classification Levels LOLAS-01 35.3/95G8 /N.0/5043 Noose River WS-IV;NSW Seep Iron the land area north of the cooling pond between the cooling pond and the Neuse Instream monitoring of the NA-028 Stagnant standing water_Nolbw to the river.Conditions consistent with onion ntRerv+ri,,n5. giver.Not a seep emanating from the active ash basin Neese River Standards Apply LOW 5-0IA 35.379648 •78.074632 Neuse River WS IV;NSW Seep Porn the land area non of the cooling pond.betweenthe cooling pond and the Neese Instream monitoring of the NA-028 Erosional channel leading to the Neese River.Wet,with lhtleto no active flow present.Some River.Not a seep emanating born the attNe ash basin Neese River Standards Apply Iron staining present in sediments. LOLAS018 35.380846 -/N.01/59/ Neese River WSIV;NSW Seep from the land area north of the coaling pond,between the cooling pond and the Neese I npream monitoring of the NA-028 Seep is reported to be below the ONWM and likely submerged by the river stage.No active flow River.Not a seep emanating from the active ash basin Neese River Standards Apply or thannelloation on the river bank was observable. Ditch system draining area norm and Low volume seep to small channel north of active ash basin at the toe of the dike.Flows west, Monitoring at location Ditch contained standing cower.No perpendicular flow was observed from the bank into the 5-01 35.386p5p -7A 01345R east of active ash basin WS-IV:NSW then south,toward confluence with Neuse Riser at sampling site 5-03A 5-03A S.es O. ditch. Ditch system draining areas north and low vokime seep to small channel north ofanie ash basin at the toe of the dike.Flows west, Monitoring at location Ditch contained water with some Iron staining and low flow toward S03.No Dow nerfsendi,clar 502 35.384001 J8.081383 east of an Ne ash basin WS Iv;NSW then south,toward confluence with Neese River at sampling slte S-03A 5-03A See 5-03A from the basin was observed. 5-03•• 35.382665 •78.084374 Neuse River WS IV;NSW Not a seep NA-Seep DNpositioned NA-Seep Dkposttioned Flow from culvert beneath roadway at about 25gpm.Upstream from 5-03A Some iron staining In sediment. Arsenic 100 pg/L 503A•• 35381806 .78.0840S2 Neese River WSW;NSW Sampling location;not a seep NA-Seep Dkposhloned Hardness 500 mg/i Steady flow In the perimeter drainage ditch to Ole Neuse River. TDS 800 mg/L SO4 35.381993 -78.078784 Neese River WSW:NSW Stagnant,ponded water Inland from river terrace below southwest side of active ash basin. lmtream Monitoring of Neese NA-028 pmnded cower.No lbw observed.Some stalnin River Standards Anrvy 8pesent near the seep sign. S-05•• 35.3790I5 -78.070293 Neese River WS-Ni NSW Static AOW near rlmaDaired on the south side dthe southeast corner of active ash basin. NA-Seep Dhposhioned NA-Seep[epos Rioned Dispositions.No seeps or flow observed from the rlpap. Location has been repaired.No flow observed In recent observations. Ditch system draining area nor WSN;NSW Iand Law volume seep to small channel on east side of active ash basin xtlre toe dthe cake.Flows Monitoring at locationSee 5-09 Perimeterditch contained water.No perpendicular flow from the basin side of the bank was SO6 35.386968 -]8.071942 eat ofactive ash basin south,toward confluence with Neese River at sampling site S-09. S.09 observed. Dntnsystem drabbgareas noonand Low volume seep to small channel on east side of active ash basin at the toe of the dike.Flows Monitoring at locationSee 5-09 Perlmmerditch contained water with steadylow ibwsouthward towardbcallon5-00.Noflow 5-07 35.3s2767 -78.069655 east of active ash basin WS'N;NSW south,toward confluence with Neese River at sampling site S09. 5-09 perpendicular to the basin was observed.Some Iron staining In sediments. Ditch system draining areas north and Stark AOW near rlprap area an the east ibed the soMheat turner of active ash basin.Ann flow Monitoring at location page areas g penimelerditch.Someiron stainingt. S i!9 35.3805] -78.O6s532 east of active ash halo VlSN.NSW colleen in channel and lbws south toward 509.No flow observed in recent observations. 509 See 5-09 Wide see ion thepresrn Arsenio 400 pet Steady lowi510 10 semi flow In the drainagedhch to the Neese River.Flow in the ditch ,iY1•• 35.379492 -78.067718 Neuse Rivet WSN;NSW Sampling traction;not aseep NA-Seep repositionedrepositionedNaT0S8 500 mg/mg71 TDS 800 mgA appeared normal. S 18 35.379222 -78.101206 Neese River WSIV;NSW Stagnant,ponded water Inland from river terrace below east side of inactive ash basin. lnwream Monitoring of Neese NA-029 Ponds water with orange staining below roadway embankment.Some flow was obs,•i',nrr,or- River Standards Apply discharging to the Neese River. 5-19• 3538119 -78.097649 Reuse River WSN;NSW Stagnant,ponds water Inland from reef terrace below nonheast side ofinamNe ash basin. NA p S Dkposkloned NA-Seep DLiposgloned Dhposifioned.FAtod A c seep submerged by the river level From sampling-NO CCR Impacts. TABLE 1 SEEP LOCATIONS AND DESCRIPTIONS-AUGUST 2021 INSPECTION 2021 ANNUAL SEEP REPORT H.F.LEE ENERGY COMPLEX DUKE ENERGY PROGRESS,LLC,GOLDSBORO,NC Seep lD Location Coordinates Receiving Receiving Interim Waterbed,/ Desnfront iption••• SOC Monitoring Action Notes 2021 Inapectlon Number weterbody Latitude Longitude Classification levels sw Seep near well CMW-10,along the coat,'side of active ash basin.Location has eeen repaired to pus Seep Isos sign d drainage 520•• 35.382406 -]8.OA1053 Neese RNer W'S V.NSW eliminate seep. NA-Seep Oh kronetl NA- Dh eloped Dkposkloned.No Row was observed the sl and historic drains into the riser. 511" 35.382151 JB 0803JG Neese River w v,rISK' Stagnant seep along south side of anNexAny fbw re-infiltrates prior to reaching NA•Seep D ispositioned NA-Seep Dhposltoned Ohposltioned.Some ponded water In old drainage swore.No lbw was observed to the river. sedateoah wateasin.wxer. Instream Monitoring of Neuse NA•02B Trickle of flow I<1 spell with Iron staining to the Neese River.Observations are consistent with 522 35.381466 •78.077819 Noose River WS-IV;NSW Seep along south side of active ash basin.Flows toward Neue River River standards Apply past events. gsouth side of active ash basin.Flows toward Neuse River Instream Monitoring of Neuse NA-02R Seep along the south side of the active ash basin in the flood plain of the Neuse River.Flow is 5-23 35.381175 -780 Seep 77136 Neuse RNer WS.IV;NSW aloe River Standards Aestimated at and with ts.lron staining t gpm an past even gpresen. 51a 35.3Atof,3 -]8.0]6431 Neuse River WSiv;rvSW See Inn ,'side of active ashbsln.Flows toward Neuse River Instream Monitoring of Neuse NA•02B The seep begins at the base of a steep bank near the river.flow to the river h consistent with Seep along River Standards 0.poly past events.hen staining is present. 525 35.330922 78.076001 Neuse River W5-IV;NOWSeep along south side of act he ash basin.Flows toward Neuse RiverInstream Monitoring of Neuse N River Standards Apply Observed flow to the Meuse RNer Is law and consistent with past events.nonstaining is present. S-26 35.38164 ]g.0]8322 Neuse Rives W5-IV:NSW Seepwkhin a small drainage channel for ponded water within the river bank below south side of Instream Monitoring of Neuse NA•02B Multiple erosional features on the river bank.low lbw b consistent with past events.Some iron active ash basin.Flows toward Nellie River. River Standards Apply Is staining present. 5.2J 35.3858dRJB.015999 DRCN system draining area norm and WI N;NOV.' Low volume seep to small channel nosh of ache ash basin at the toe of the dike.Flows west, Monitoring at location Seepage areatolhe perimeter ditch.No observable flow.Some iron staining present. castor anise ash basin then south,toward confluence with Nome River at sampling site 5-03A 5-03A Ditch system draining areas norm and Low volume seep to small channel nosh of axNe ash basin at the toe of the dike.Flows west, Monitoring at location No measurable flow was observed to the perimeter ditch.Significant dark orange Iron staining S28 35.3AS133 •]g.p1819] east ofactwe ash basin WSIV;NOW then south,toward confluence with Nernw a River at sampling site 5-03A 5-03A Sae S-030. with sheen.Consistent with prior observations. See HaRmile Branch Iol ream 529 35.37862 18.0I593 Itatlmlle Branch WYIV;NSW Seep to Nag mile Branch on southwest side of retired Instream Monitoring of Hallmlle Monitoring repaired with rip-rap.Orange Iron staining with sheen on water.Seep iron bank of ash basin g2. blanch (SOC ARacnment A page el Inactive Ash Basin No.2 net observed. CPS01 35.3/924 •]g.0/377 Neuse River WS-IV:NSW Seeptase from the berm surroundingfrom the the cooling pond. Instream Mpnoes of Neuse NA 028 Low steady flow from none on riverbank at water interface,determined to be below OHWM. Not a seep emanating from the active ash bait. River Standards Apply [Pt-02 35.37901 It 07704 Neuse River Wt-IV;NSW Seep from the berm surrounding the cooling pond. Instream Monitoring of Neuse NA-02U Low Row(torn seep along the riverbank near water Interface,determined to be below OHWM. Not a seep emanating from the active ash basin. River Standards Apply Orange staining on se6ments. Seep iron the barn surrounding the cooling pond. rnstream Monitoring of Neuse NA•026 Same seepage along the river bank near water Interface,determined to be below OHWM.Some cos, 35.37895 )gtfu2](! Neuse Nrvcr WS-IV;NSW Not a seep emanating from the active ash basin. River Standards Apply orange staining on sediments. f.P5-04 1',07002 g/]5]l1.r Neuse River 19110 NSW Seep from the berm surrounding the cooling pond. Ins/yearnnwaterM onodng of Neuse NA-0211 Some seepage along the river bank near water Interlace,determined to be below OHWM.Some Not a seep emanating from the active ash basin. River Standards Apply orange staining an sediments. Page 2 of a TABLE 1 SEEP LOCATIONS AND DESCRIPTIONS-AUGUST 2021 INSPECTION 2021 ANNUAL SEEP REPORT H.F.LEE ENERGY COMPLEX DUKE ENERGY PROGRESS,LLC,GOLDSBORO,NC Seep ID I oration Coordinates Receiving Receiving Interim I Number Water body Waternody Description a" SOC Monitoring Action Notes from 2021 Inspection Latitude longinrde ClassificationI Levels CPS-OS 35.37aas sr.,,,.)t WS-IV, Seep from the berm surrounding the cooling pond. Instream Monitoring of Neuse NA-0l0 low l',ow seepage from both sides of large rock.determined to be below OIIW M.Some orange Not a seep emanating from the active ash basin. River Standards Apply staining. L'P506 35.31:19 ��.�., WSN;NSW Seep N erm o on the b surrounding the cooling pond. Instream Monitoring of Neuse NA-02B Low seepage flow(-5 gpm)of clear water from low-lying mud flats to Fiver.Appears to be Not a seep emanating Iran the active ash basin. River Standards Apply typically below high water mark. Seep from the berm surrounding the cooling pond. Instream Monhonng of Neuse NA-02B Low seepage flow(^S gem)of clear water from low-lying mud lists to river.Appears to bun CPS-07 3537177 -7g.0665I Nouse ROor WS-IV;NSW Not a seep emanatingfrom the active ash basin. River Standards PpiV typically below high water mark. CPS Og 353Ty11 -73J16780 WS-IV;NSW Seep from the berm surrounding the cooling pond. Instream Monitoring of Neuse NA-02B Low flow(^2 gpm(to the Neuse River.Some iron staining present.Observations consistent von Not a seep emanating from the active ash basin. River Standards Apply past events. • CPS09 35.36922 -78g77880 WE-N;NSW Seep from the berm surrounding the cooling pond. Instream Monitoring of Neuse NA.0213 Ponded water with heavy orange staining and sheen.Flow Increases downgradient toward me Not a seep emanating from the active ash basin. River Standards Apply Neuse River to about 5 gpm. Seep from the loom swtounding the cooling pond. Instream Monitoring of Neuse NA-02B CPS-10 35.36840 -18 OR1)S Ponded water with heavy omngestaining and sheen.Na discharge to the river was obse NK-IV; rvwi Not a seep emanating from the active ash basin. River Standards Apply CP5-11 35.36829 -78.08141 WS-IV;NSW Seep ilom the berm surrounding the cooling pond. Instream Monitoring of Reuse NA-02B Seal seep to the riven.Very low flow.Orange staining a seep emanating from the active ash basin. River Standards Apply on river bank. Seep from the berm surrounding the cooling pond. Instream Monitoring of Neuse NA-02B[PS12 35.36816 78.06156 Neuse Rruer WS-IV;NSW Not a seep emanating from the active ash basin. giver Standards Apply No seepage,flow or staining of sediments was observed. • Seep from the berm surrounding the cooling pond. Instream Monitoring of Neese NA-02B Appears to be standing waterwith Iron staining and some sheen.NO Row observed.[PS-la.CPS CPS-11 35.37972 •78.07540 WS-IV;NSW 14 and CPS-IS are all identified as separate ucsgradient depression.eas of one broad depression.low No[aseep emanating from the active ash basin. River Standards Apply 14 all three areas merges and flows Into the Neuse River near the CPS-IS location. Seep Pram the berm surrounding the cooling pond. Instream Monitoring of Heim NA,02B `Water with significant Iron staining and sheen.Very low flow observed.CPS-I3,CPS-14 and CPS- CPS-14 35.37963 -78.07521 WS-IV;NSW Heim15 are all identified as separate upgratllen[areas atone broad depression.Drainage from ag Not asedp emanating from the arrive ash basin. giver Standards Apply three areas merges and flows into the Neuse River near the CP5.15 location. [PS15 35.37962 -78.07460 WSN;NSW Seep from the berm surrounding the cooling pond. I nstream Monitoring of Neuse Na flow observed into the Nemeth,Someiron staining anent on sediments.CP513,Ces-14 Not a seep emanating from the arrive ash basin. giver NA-02B Standards Apply andCPS-I5 are all Identified as separate upgradient areas of one broad depression.Drainage from all three areas merges and can Row into the Neuse River at the CPS-15 location. CPS-16 35.37942 -78.07423 WSN%NSW Seep from the berm surrounding the cooling pond. Insream Moneodng of Neuse NA-02B CPS36 is formed as seepage Rows across a riverbank shelf and to the Neese River.LowRovrI- Notaseepemananingfromtheactiveashbasin. River Standards Apply 2gpml appears consistent with pastevents.Orangeiren staining present. Seep irom the berm surrounding the cooling pond. Insream Monitoring et Neuse NA-028 CPS-I] 35.37465 -78.06165 S WN;NSW Note seep emanating from the active ash basin. Riven Standards Apply No flow was observed in drainage channel above the level of the Snore River CPS-1B 35.37195 -78.06605 'NS-IV;NSW Seep from the berm surrounding the cooling pond. Instream Monitoring of Neese NA-02B Not a seep emanating from the active ash basin. Oiven Standards Apply Seepage emerges from base of tip rap.Low Raw with iron staining was observed. Page 3014 TABLE 1 SEEP LOCATIONS AND DESCRIPTIONS-AUGUST 2021 INSPECTION 2021 ANNUAL SEEP REPORT H.F.LEE ENERGY COMPLEX DUKE ENERGY PROGRESS,LLC,GOLDSBORO,NC Seep ID Location Coordinates Receiving Receiving Interim Waterbody Description••• SOC Monitoring Action Notes from 2021 Inspection Number Waterbody Latitude longitude Classification levels Seep Isom the berm sot rounding the cooling pond. Instream Montronmgol Neuse NA-020 Seepage emerges from base of rip rap.Low Row with Iron staining.Minnows were observed CPT-19 35.37192 -78.06625 w'S IV;NSW Not a seep emanating from the active ash basin. Rive Standards Apply swimming in the water. CPS-20 35.37202 -78.06630 Neuse Prver w1 IN;NSw Seep from the berm Sin mutant the cooling pond. Instream Monitonng of Neuse NA-02B Seepage emerges from base of rip rap.Low flow(-3 gpn)with Iron staining In sediments Not a seep emanating from the active ash basin. River Standards Apply observed.flow to the confluence withCPS-0]and Neuse River. Saturated area at the toe of dam merges with a broad area of standing water.No flow was Seep from the berm surrounding the cooling pond. Instream Monitoring of Neuse NA•028 observe].Seepage could follow multiple small channels down a section of steep tiverbank from CPS-it 3S.poem -76.075ge Neuse Rrver WS-IV;NSW Not a seep emanating from the active ash basin. River Standards Apply the area of standing water to the Neuse River.General observations are consistent with past events.Iron staining psesent within the standing water. Prepared by 11— Checked be KNOWN( HggL •localise.previously investigated as aseep.Monlsorkg has not indicated the presence or coal combustion r mahlais ••seep dnpofitwned via repair and/or narn lowang cnndrbon in y0remu3y reach waters of the O.S.,or other,as noted. •••Some tlmeripuorw luxe been updated bon the anginal test found in the SOC Attachment A table for accuracy and currency yg(l-mi rogrwn per Mar mg/I.•milligrams per liter 020-ISA NCACO211.0202 Steward AOW area of*tens CCP-coal combustion reslduala Wee-gallons per minute NA-not a.PPMblo NSw-mmiem Sensitive Waters ONWM-manato high water mark T0t-totaldnsol.ed solids WA-N-Water Sunni./•Iggely Developed Peen a of 2021 Annual Seep Report H.F. Lee Energy Complex Goldsboro, NC APPENDIX A PHOTOGRAPHS ‘4°A Terra Science & Engineering Consultants 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC North West Elevation 0 122'SE(T) LAT:35.379906 LON:-78.075506 313ft•76ft y . _ ram:-- s- _, v fi -"V Yy asT' r._ if x�'.3C� s va.1Filigilki - „. �� _- • :_OLAA S-0, F •# }4 !.F lce SynTerra 4 Au�Zv..r.14 25:.i . LOLA S-01 Standing water at LOLA S-01. No flow observed to the Neuse River. North Elevation O 196"S(T) LAT:35.380012 LON:-78.075174 213ft •66ft • j� '1 -.. li � 44414k LOLA S-01A HF Lee S,^Terra - . 24 Aug 2021,11.14.41 LOLA S-01A I View of bank where S-01A emerges and enters the Neuse River. August 2021 Photos Page 1 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC North East Elevation 0 206°SW(T) LAT:35.380978 LON:-78.077664±13tt •64ft r i .Z fic r. Ili` '" s -,. . -F Lee -,- -..;202 t,10.52.58 .4 LOLA S-01B The Neuse River in foreground, LOLA S-01B in background.Seep is below the ordinary high water mark. South Elevation O 355°N(T) LAT:35.386828 LON -78.073465±9ft •831t 71 ,,i f• i Aii? M. s� y-? ' • . /1f.. 'I" 1i r: r ' ` � , E_` Fr_j ELpp�. .e . 1�.t �• �-� . . , . i._,, ", , .g,-. ...,.., . :. ,.,„. /. , $-U1 Perimeter ditch at the north corner of the active basin. No flow observed perpendicular to the ditch. August 2021 Photos Page 2 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC South Elevation 0 348°N(T) LAT:35.383968 LON:-78.081334*13ft a 86ft • _ �-� Auf• - S-02 • a f <F S 02 Perimeter ditch on the north side of the active basin. No flow observed perpendicular to the basin. North Elevation O 181°S(T) LAT:35.382716 LON:-78.084378±9ft a 76ft 4' • A o.W. =. S-03 a• S a 1' C. s 1; j�. !.r ..t .<.}- s t .. v�, • •s >. 3 .fy ♦'i. � �if • q i r. . y . . .1 D 1 1 y' 1'Jt .. • .• NFL e ( " i, 4At. ,z, r b - - S-03 Flow in perimeter ditch on the west side of active basin. August 2021 Photos Page 3 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC M.% N NE 0 345•N(T) LAT:35.381712 LON:-78.084079*9ft A 64ft 1 r v ( ss y, {p}y.. .. -- __ .-� .a; 5-03A Facing north where the perimeter ditch enters the Neuse River(foreground). North East Elevation O 210°SW(T) LAT:35 381953 LON:-78.078423 t13ft •79ft VY. � ; _ A.O.W. Y -04 x , s_,Sq`" - .',„ Y. ! 'k'-1F L Syi _Ka ; 4 ,. 'cfi, . .d f 21:2IFA S-04 I Ponded water at S-04. No flow observed. August 2021 Photos Page 4 B 8 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC South West Elevation O 39°NE(T) LAT:35.382871 LON:-78.069794 t13ft •79ft • ; - x 4 -, S-07 ' • $ -• . t 4T.1 ')PT.,''''-‘2- 4a r • 2`Au3 21' t i o S-07 I Seep area east of active basin. No flow observed perpendicular to the basin. South West Elevation O 52°NE(T)LAT:35.380534 LON:-78.068487 t13ft •77ft 1i x. i( ^+i'4 7 fi',oAsjr y�T1 1 (- * aF M1 1 , jt. ' � i KM,W,1 . >R -1 , S- .e.:(„.,„... p$ t :,,Y i l <ir; J„ I ^^... 7. 1 Try , r v;k-_,,-,',4r , ' 1�!„oi -N 31 ' i ' x f r t 1 y 4 , ), , i :.,,�} ,may �i S-08 l Low flow from the S-08 seep area is observed. August 2021 Photos Page 6 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC North West Elevation O 133°SE(T) LAT:35.379441 LON:-78.067718±13ft A 89ft t 4- r T _♦l l .4:— ° 4 T f HF4 ' �f''jam '? .. ."a. '.•.i _6- l '.s„�::. S-09 Flow in perimeter ditch on east side of active basin. SW W NW 2.� 1 aoo 3a_: ®287°W(T) LAT:35.379198 LON:-78101129±13ft •72ft r x - :: rr :,ns a '-.; .t. f _ t.: ' c _ - 5-'s - HFLee SyrTer a 24 Aug 2021.09.-1:51 $-18 Facing west,S-18 is behind the red floating barricade. Neuse River in foreground, ponded water was observed to be flowing into the river. August 2021 Photos Page 7 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC W NW N O 328°NW(T) LAT:35.381780 LON:-78.097557:13ft•67ft • a. • HF Lee S,nT::rra 24 Aug 2021.09:49:23 S-19 The Neuse River in foreground,seep in background.Seep is dispositioned. W NW N 3n O 332°NW IT) LAT:35.382006 LON:-78.081899:13ft A 66ft • tidier +001111' S,yiL; " HF Lee erra:,` -:24 Aug 2021,10.19.37 S-20 Neuse River in the foreground.Seep is dispositioned.No flow observed. August 2021 Photos Page 8 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC North Elevation O 163°S(T) LAT:35.382186 LON:-78.080358 t22ft •88ft 4 U. Jc yy •T —, xs'n a �t i; ' '-'=ram _ sfs •t. i ' y S-21 F l= SynTerrz - S-21 I Ponded water at S-21.Seep is dispositioned. No flow observed. North Elevation A 179°S(T) LAT:35.381517 LON:-78.077886 t13ft •78ft j14111 '`. , fY M+~ KV c5 $-22 S-22 in the foreground and the Neuse River in background.Trickle of flow to the river. August 2021 Photos Page 9 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC North East Elevation O 229°SW(T)LAT:35.381226 LON:-78.076974 119ft ♦73ft 1 4.2' - �i . g f b .7L 1y'.J .. � w • 1 F co 1 � , 4 tT *1 HF Lei •_- 1-= .-_.Auger 0 1,12:1 1:12 S-23 I Channel drains to the Neuse River(background). Iron staining present. North East Elevation O 204°SW(1) LAT:35.381038 LON:-78.076395*13ft♦88ft at1C yi tr f � . « Y 1 • s-:i.: . t-i-i:.a $-24 Seep area at S-24 as it enters the Neuse River in the background. Iron staining present. August 2021 Photos Page 10 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC North East Elevation O 203°SW(T)LAT:35.380927 LON:-78.076100 t13ft A 79ft +- + ° 1L s '1.♦ ;.. 12.00.13 3 S-25 Seep area with low flow in the foreground, Neuse River in the background. NW N NE O 19°N(T) LAT:35.381575 LON:-78.078375±13ft ►56ft •• 1 • S-26 Seep as it enters the Neuse River from the north bank. August 2021 Photos Page 11 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC South Elevation o 3°N(T) LAT:35.385857 LON:-78.075979±9ft ♦84ft • s /,�. F Aid W. ''. 1 •F „� k`: ,. '• h hex $-27 Perimeter ditch with standing water. No observable flow perpendicular from the basin at S-27. South East Elevation O 302"NW(T) LAt 35.385173 LON:-78.078156 t9ft •76ft V ` rri,I • '' .� ` ;.• ., ,i 1 1/4 N 4,,,; ,, ..+_-.tor. , , i11 J/f e\,Y\ ,� 7 c - / _• • NF Lee_ a' _t „'`..-.,.G, 9 i_ .40:29 ', S-28 Standing water in perimeter ditch with some iron staining. No flow observed. August 2021 Photos Page 12 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC South West Elevation O 64•NE(T) LAT:35.378172 LON:-78.105246*13ft•77ft .♦;4 . • Y `ir - - c '►s.. '' • Yif: \ `; t. c _ 4 fi • �.F.r.4 a 1.t S,n'e . Lc . F S-29 Area along Halfmile Branch repaired with riprap,seep not observed. North East Elevation O 213°SW(T) LAT:35.379318 LON:-78.073695 t13ft •67ft - : ., X. ' ;-. t'- ' t :- .. PS-01 • FiFLee S.,-Tea-; t 2.1 AL.g 2021.11:3C 16 CPS 01 The Neuse River in foreground and CPS-01 area in background.Low flow from seep on riverbank at water interface. August 2021 Photos Page 13 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC North Elevation O 190°S(T) LAT:35.379059 LON:-78.073277±13ft ♦66ft v J W • - 'f • � r - v . .1,7 ' 1 :X r Ntir�� f I p' a f YF i 2 s .t t t `f,I� HF Lee ire - . :`S n,,yjr.' -� 25.11.3?:06 CPS-02 Low flow from seep along the riverbank near water interface.Orange staining on sediments. West Elevation O 105°E(T) LAT:35.379019 LON:-78.067088±13f1 ♦66ft i • • • ; t rl"` t . ! w y Y^ • • CPS-!�3 - T Lee Synjgrra 21 Aug 2G2. $:C5 CPS-03 The Neuse River in foreground and CPS-03 area in background.Seep is determined to be below the ordinary high water mark. August 2021 Photos Page 14 Project:00.0061.20 • 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC West Elevation O 103°E(T) LAT:35.379096 LON:-78.067030±13ft •74ft • r m ; • alert �' CFS-0t ' �: HFLe Syx7e,ra , lc. 2-1 A,:q 2021.12:13:50 CPS-04 The Neuse River in foreground and CPS-04 area in background.Some seepage along riverbank, but below the ordinary high water mark. North West Elevation O 149°SE(T) LAT:35.380037 LON:-78.065718 t9ft •73ft CPS-05 * HF Leez` Syr,Terra ;k*'' f f 2-. _ ,?1,1218:06 CPS-US The Neuse River in foreground and CPS-05 area in background.Orange staining observed.Seep is below the ordinary high water mark. August 2021 Photos Page 15 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC South West Elevation 0 36°NE(T) LAT:35.371775 LON:-78.066350 t9ft A 65ft i,„ 9:,7 a ' ft `1 t FiF :55 We.; 1 -A 2 .g 2427,13:2:02:55 CPS-06 Neuse River in foreground,seepage area in background. Low flow of clear water was observed. South Elevation ®20°N(T) LAT:35.371771 LON:-78.066412±9ft A 75ft . .. a 1 3 F6 a CPS-07 A S'Terra • i-• w �� a4 CPS-07 Neuse River in foreground,seepage area in background. Low flow of clear water to river observed. August 2021 Photos Page 16 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC East Elevation 0 291°W(T) LAT:35.370345 LON:-78.068406 t9ft ♦65ft - VV . J Ala � w a -1 �- ,�.�- •, k r • CPS-08 - . SynTerra `2,.Aug 2021 3:12:45', CPS-O$ Neuse River in the foreground,seep area in the background. Iron staining present in CPS-08 channel. North Elevation O 163°S(T) LAT:35.369329 LON:-78.078713±13ft •80ft t •s i _Y r OC f. - .. I R`1 1 v . s. j 1 1' K '�J�J .'�Ir'a z1tit_ CPS-09 I Iron staining present in area of CPS-09. Neuse River in background. August 2021 Photos Page 17 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC North Elevation O 172°S(T)LAT:35.368596 LOft-78.081409 t16ft•86ft 4- ....P.;.3'1 - .. r -. Hr- S _ -, ynThrra,,:$ 4 ..2=At.. 1 , J. CPS-10 CPS-10 seepage area.No discharge to Neuse River in the background. North Elevation O 180°S(T) LAT:35.368120 LON:-78.081664 t16ft •68ft •\..'T * r� '•• 0 a x, ,. t,?ai a. ft tips !; 4 HF I,.. -,qn lsrra CPS-11 Small seep with minimal flow on the riverbank. Neuse River in background. 1 1 August 2021 Photos Page 18 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC East Elevation O 278°W(7)LAT:35.368075 LON:-78.082104 129ft•104ft tiFX f • +1 2c .` O 1 ,' � -,e a fY q ,- J- ,...--, ` I.Z �F S,n nrr�'.•' CPS-12 No seepage or flow observed on sediments. West Elevation 0 77°E(T) LAT:35.379832 LON:-78.075538*13ft ♦112ft s L-- "";-. 'mot,.-- . '� r- J - ', 1 r-:- "�i r, r �r 1 -°a ti. irt r y4 . _ _ tOA ." 1.-y Fa ..„_ 7 ,..mac CPS-13 Apparent standing water with staining and sheen that merges with flow from CPS-14 and CPS-15. August 2021 Photos Page 19 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC South Elevation O 12*N(T)LAT:35.379602 LON:-78.075235*13ft ♦7311 _ _ lR` 11 4._ r ~ 1 it • CPS-14 Seepage area of CPS-14 that merges with CPS-15. Iron staining present. South Elevation 0 341*N(T) LAT:35.379648 LON:-78.074591 t13ft ♦78ft tho 'ryi by ts' " • Hrtee CP$-15 Riverbank where CPS-15 emerges with iron staining present. Neuse River in the background. August 2021 Photos Page 20 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC North East Elevation 0 210°SW(T)LAT:35.379527 LON:-78.074085*13ft•63ft fix- - 11 Tom.,_ �' ` d ram,S ,~ 01 ,y ,� por __ CPS-16 Low flow from CPS-16(in background)to the Neuse River(foreground).Iron staining present. East Elevation O 266°W(T) LAT:35.374389 LON:-78.061350±9ft •56ft • -' ,...f ': _ k.r M CPS-17 I No flow was observed in drainage channel upgradient from the Neuse River. August 2021 Photos Page 21 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC South Elevation O 9°N IT) LAT:35.371989 LON:-78.066104 t9ft ♦81ft � v s •-� .- r ram- } i.. :, v' it. 1-0,4,....?:f-i;l'''''-''.*-'..:1,9::;" 4, •• .•'''*,a...1/4 .14-3-.;...:'' '••.-4'", it,\ A ,1;,„A. ( .1,-,-.A,,, ..,,' l' - - , it': s • 4 � -� '--r.•,, ':',;1.....,eit, f;) 41. ..iF...ri,..p. .,„ , .,... i II '441t lik. CPS 18 Seep emerging from rip rap at the base of the cooling pond dam. Iron staining present. South Elevation O 349'N(T) LAT:35.371940 LON:-78.066165±9ft •76ft r ,., f`s' v J 4 tp ii„ _,, fr r 4, .t � , N d • . ,3 ' l ♦ � 51 fi ,. ty ,.. ..• Y CPS-19 Seep flow merges with CPS-18 flow and moves to the Neuse River. August 2021 Photos Page 22 Project:00.0061.20 2021 Annual Seep Report—Appendix A Photographs H.F. Lee Energy Complex Goldsboro, NC South East Elevation 0 321°N W(T) LAT:35.371916 LON-78.066352 i9ft•76ft • / I I - r LF. - bra i t giA CPS-20 Seep area at the base of rip rap with iron staining. Low flow observed. North East Elevation 0 238°SW M LAT:35.369490 LON:-78.075602-13ft a 76ft ',c•-- •fir'^ " , . � 4 I �'1 �Yh " r - oiVr 'mod CPS 21 Broad area of standing water. Iron staining present. No flow to the Neuse River was observed. August 2021 Photos Page 23 Project:00.0061.20