Text

GPI Data Review, Grand Gulf Nuclear Station
	ML101900406
Person / Time
Site:	Grand Gulf
Issue date:	04/30/2009
From:	; Entergy Operations, GZA GeoEnvironmental
To:	; Entergy Operations, Office of Information Services
References
	FOIA/PA-2010-0209
	Download: ML101900406 (39)
	v • d • e

GPIDATkAFjRVEW GRAND GULF NUCLEAR STATION PORT GIBSON, MISSISSIPPI PREPAREDFOR:

Entergy Operations, Inc.

White Plains, NY PREPARED BY:

GZA GeoEnvironmental, Inc.

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1.0 INTRODUCTION

1

2.0 BACKGROUND

SITE GEOLOGY AND HYDROLOGY 2

2.1 SITE DESCRIPTION

.2 2.2 SITE CONCEPTUAL MODEL 2

2.2.1 Site Geology2 2.2.2 1*ydrogeology 3

3.0 RECENT GPI FIELD ACTIVITIES PERFORMED AT THE GGNS PLMANT 4

3:1 GROUNDWATER MONITORING WELL INSTALLATION 5

3.2 GROUNDWATER SAMPLING AND ANALYSIS 5

3.3 GROUNDWATER ELEVATION MONITORING5 4.0 FINDINGS OF RECENT GPI FIELD ACTIVITIES 5

4.1 GEOLOGY 4.2 HYDROGEOLOGY AND SHALLOW GROUNDWATER FLOW DIRECTIONS:--

5 4.3 SAMPLING AND ANALYSES6 4.4 COMPARISON TO THE SCM 6

5.0 EVALUATION OF THE PLANT'S GPI PROGRAM RELATIVE TO NEI GUIDANCE 6

5.1 OVERVIEW ASSESSMENT 7

5.1., Key Findings: Objective I - Groundwat*r Protection Program 7

5.12 Key Findings: Objective 2 - Commnunkiction 8

-5,1.3 Key Findings: Objective 3 -- Program Oversight 8

6.0 OPTIONS TO ENHANCE CURRENT GPI PROGRAM 8

TABLES.

TABLE I NEI Self Assessment Checklist, FIGURES FIGURE 1 Site Locus FIGURE 2 Site Plan 09.0025576.09.Pg Page i:

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Nlý VA APPENDICES APPENDIX A Limitations APPENDIX B Analytical Results APPENDIX C Ground Water Contour Plans APPENDIX D List Of Documents Reviewed'and Personnel Contacted 09.0025576.09

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1.0 INTRODUCTION

This report was prepared by GZA GeoEnvironmental, Inc.G(GZA) on behalf of Entergy Operations, Inc (Entergy) and presents a summary of GZA's review of recent hydrogeologic investigatin iactivities performed at EntergyU Grand Gulf Nuclear Station located in Port Gibson;, Mississippi (hereafter referred, to as lthe "Site" or the "GGNS Plant") and'provides an opinion of the status of the Site's Groundwater Protection Initiative (GPI) program relative to the GPI guidance document 07-07 prepared by the Nuclear Energy Institute (NEI)I. This report is intended to fulfill the requirements >of Objective 3.1a of the 07-07 'NEI guidance' document, and is-subject to.the Limitations outlined in Appendix A.

GZA assessed the plant's progress relative to the NEL 07-07 guidance objectives based on our understanding of thep'plant a'nd :associated Site, Conceptuaal Modl9(SCM), using our technical expertise ard experience developed through performance of,roundwater investigations and remediation at thousands of sites contaminated with industrial chemicals and/or radionuclides "Our opinionfis a'id judgments are based on well established,*ndustry hydrogeo6logic and environmental engineering principals Founded in 1964, GZA is a leading environmental and geotechnicil engineening firm with over 500 highly skilled professionals including, geoelogistsyli-dogeologists, and hydrologists, as well as* geotechnical," instrumentation and environmental engineers, who underpin our.technical ;qualifications to perform projects of this type. "? Our recent 4 expeience includes performance of "lminted-scope", as well as sophisticated groundwater protection investigations,' including" a well documented Observational Method 2/SCM approach to the investigation, of the Indian Point Energy Center in Buchanan,;New< York. This work has been reviewed and validated by both the U.S. Nuclear Regulatory Comimission and the U.S. Geological S u r v e y.

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During the, fall of 2006 and winter of 2007,,GZA was retained by Entergy, through Enercon Services, Inc. t*' perform an initial (Phase I) hydrogeologic assessment iof GGIS 'i.ipsuppot 'of Entergys corporate GPI program. This,work was performefd in general a*cordanfce writihthe then evolving NEI GPI guidelines anid focused on assessing 'potential radionuclide pathways fromn impacted or potentially 'impacted, plant systems to, aid then with, the groundwater. The"Tfindins of GZA'*

initial GPI study are' 'presented in a report dated January 30, 2007 (Phase I Report)3.

Since completion of the Phase I 'study, NEI adpopted the final 0.7-07GPI guidance document and Entergy installed a series of groundwater monitoring wells downiradieti of the: Site and commenced groundwater monitoring activities.

NEI, August 2007, Industry Ground Water protection Initiative - Final Guidance Document, NEI document No. 0707 [Final].

a Use of the Observationil'lMethod in the Investigation and Monitoring'of a Spent Fuel Pool Release, Barvenik, el al.,

NEI Groundwater Workshopct. 2007.

b. Use of the Observational Method in the Remedial Investigation and Cleanup of Contaminated Land, Dean, A.R. and 10J. Barvenik, The Seventh Geotechnique Symposium -'Geot ciical, Aspects'of Contaminated Land, sponsored by'the Institution of Civil Engineers, Lo*d*n**Volume XLII,'Number 1, March 1992.

OZA and EneTcon, Januaryi 30, 2007, Site Hydgeýologic'assessment in Sugo of Enter'v GPL.Grand Gulf Nuclear Power Stati6n. Port Gibson,,Mississinpj.

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This report provides ýa brief summary of GZA's Site Conceptual Model (SCM) of the geology and hydrogeology of the site,, a review of recent GPI field activities conducted by others at the GGNS Plant, an assessment regarding the consistency of the recenL findings with respect to the existing SCM,.:and our assessmnent of the Site's progress towards implementation of the GPI program relative tothe NEI 07-07 guidance document.

2.0 BACKGROUND

SITEGEOLOGY AND HYDROLOGY

2. 1 SITE DESCRIPTION Grand Gulf Nuclear Station: consists of "approximately 2,100, acres and is located in Claiborne County in. soiithwesterhMississippi as shown on Figure-1. The plant is located on the east side of the Mississippi River about 25 miles-south of Vicksburg and. 37. miles north-northeast of Natchez.

The Site~consists primarily of woodlands, former-farms aýnhd two oxbow lakes, Hamilton Lake and Gin; L6ke,, which formed within a former'channel of the Misgissippi.I River. The Site is divided roughly in half between the eastern upland,;area that is in the elevation rangeof about 100 to 210 feet: above mean sea level (rmsl) andt'the lowland western'area that is in rthe elevation range of,55 to 80 feet above msl. Surface drainage over a majority of the developed. upland portion of the. Site occurs within' two.:watersheds which discharge o Ha'milton Lake. Most of the undeveloped western lowland area of the 'Sitedrains.',to Hamiltion aind Gin.' Lakes.with: only a very-limited drainage area to theMississippi River along its bank. The GGNS, facilities, including the power generating facilities and adniinistrative officeS, 'are located in the eastern upland portion of the site.

2.2 SITE CONCEPTUAL MODEL This section provides a brief summary of GZA's understanding of Site.geology and hydrogeology as discussed in the Phase I report 'and is presented herein! as a Site Conceptual Model (SCM)"

Combinedwith the results of recent data collection activities (described&below in Section 4.0), this understanding'forms the basis of our assessmentfof the technical aspects of the GPI program for the GGNS Plant.

2.2.1 Site Geology The region lies "within the Coastal0Plain physiographic province, which extends from New Jersey to.-Texas and tencompasses all of Louisiana and nearly. all ofMissgissippi. The wide Coastal Plain consists primarily of Late Cretaceous to Ho1ocene deposits that were deposited mostly in a marine environment, were later iuplifted and now. tilt seaward, or to the 'south in' Louisiana. and Mississippi. The Site lies with:i the iorth-south trending Mississippi Alluvial Plain Section of the Coastal Plain Province that par'allels the Mississippi River extending from north of Mississippi'to the. Gulf of, Mexico and consists'of a low flood.plain and deldta, gyste m

edoly M~issippi River.

The: results 'of previous borings drilled,at the site indicate thlat the: subsufface consist of the kfollowing (listed, from youngest'to oldest):

S0.to 145W feet of Holocene Alluvium consisting of clay, silt, sand, and gra '61;"

0 to 82 fe:etof Pleistocene Loelss doisistinig of silt; 09.0025576.09' Page 2 4/15/019

0to 151 feet of Pleistocene:Terrace Deposits conisting of lay, silt, and gravel; SMiMocene Catahoula Formation consisting of up:.t 320 feet of hard to very hard partially indurated silty, fine, sandy clay to sclayeyslt and sand; and Oligocene Vicksburg Group consistIng of hard clays and interbedded limestone andfine 9 Due to the la*ck of initeediate-age Plioene* deposits, aaniconfority exists -between 'the' der Catahoula clay and the overlying y"ounger ter-race dep~osits and alluvium. The~tpo the 'Catahciulai clay is elevated in the area of the power block with elevations generally 'above 80 ft rnsl and as high' as about 100 ft ni. The top of Catahoula clay elevations generally decrease8in all directioinsfrom the power block are'a'with 'topographic lows 'of'less' than'70 feet~ below msl to the west benath Hamilton and Gin Lakes;:less than&20 feet below msl* along the north prprty lin*; abu 10 ft s

.to the northeast, and 30ft msl to south. The area of elevated Cathula clay appears to exist :as a rK'idge b'en'eath' the power block oriented generally northwest-souheast."

The Catahoula clay is the load bearing unit, for the major plant-s*

uctures at the Site.

TheY foundations for the major plant siructures including the Auxiliiry Builidingigand Conitrol Building were excavated into the Catnhoula clay. S beethc nentbuildig,'eexr3e:cavated to depths of about 69 ft msl]compared to the*e*isting grade aro und' the powerblock of'about 32 ft s1 d'andpre-construction surface grades as hi*h as 200 fl msl.

The Terace deposits generally blanket the upland portion of the "Site with pre-construction thicknesses of at least 25 feet.The areas of thinnest Terrace deposits were in the powe i

block area

>where the' 'Catahoula is most elevated. 'The Loess deposits overlie the Terrace dep~osits and generally blanket the uplaindportion of theSite

.with pre construction thicknesses Thle Alluvium deposits are generally onlypresent in the low lying portion.,of the, Site fromi{ the'.

ground surface to depths generally greater the 50 feet and maxinumthicknesses ofabout near the banks of the Mississippi River.

2.2.2

~Hydro~zeolov K

The findiings of the Phase I report, indicated thatl several important major regional,aquifer exist at or near the Sitecorresponding tozthe geologicu nits described abiove'. These include the.

S'Pleistocene to WHoclene Mississippi River AlluvialAquifer system; Qligocene to Holocene Coastal Lowlands Aquifer system, and

Upper Cretaceous through Eocene *Missisippi EE' A

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The southern extents of t*e issippi River AlluvialAquifer system is not present at the site but exists approximately 10 miles north.of'the 'Site. The northern exteit of the Coastal Lowlandi Aquifer system exists approximatelyv~l 0 'miles north of the Site-and, txtehds to beyondt4he Gulf of

.Mexic' to the south. The Site is presentInear the center ofMississippi E:mbayment Aquifer system which extends from the southernttip of Illinoisto beyond the* outhcm extentvo Missis~sippi into the Gulf. of Mexi*

.The top of this third. aquifer is estimated to be approximately 600 feet below ms]f" in the area of the Site..

The Coastal Lowlands dAquifer systemriiS isthe first and primary aquiferoencountered at the Site.

'The, Coastal Low*Iands Aqiuifer system "! consists. of a gulf-ward thicken:in**:heterogene:ous unconsolidated to poorly consolidated wedge of discontinuous bedsof

dsand, silt and clay that. rnge from Oligocene to 'Holocenee.:. Where, sufficiently.thikkand permeable, the Coastal Lowlands 09.0025576.09 Page 3sia-+:+:ag:

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Aquifer system yields large',quantities of groundwater forihigh capacityiwell systems f6r industrial, municipal,. commercial,:and irrigation uses. While tii* e

t oastal Lowlands Aquifersysltem consists of five permeable units and two confiningunits and isir**eater than 10,000 feet thick south 6o:the Site, it is only 'present at the,Site in the f6rm of the relatively thin alluvial deposits in the lowland western portin.of the Site and the terrace deposits and toess in the~easter upland areas-of the Site.

yen' the presence of alluvial sands in lose proximity to the M issssippi River, cooling and drinking water for the GGNS :Site is obtained from wells constructed in the Coastal Lowlands Aquifer system.

.Additional :ýcooling water is obtained from Wells constructed in Holocene Missbsipine aothluvia deposits:

and for other uses at the. Sit in o

nsut io i obtained from the Plestocene Tere race deposits in the eastem'upland portion of the Site.

Within the shallow soils at the site, there:are three distinct water levels:. a "perched"' water table in

,the Terrace deposits in-the-viciriity of-the power blok," a regiofial water table inithe Mississippi SRiver~alluvium and potentiometric head in the' confined aquifer within the: Cata-6la Fonrnation.

These are:further"described :below:

Perched Water Table: Perched groundwater is present in the, poweriblock area where the top of the Catahou'la clay is above 70 ftinslm (less than60, ft bgsin theIpower block). Water levels measured.in the perched groundwater system prior to construction during the period of. 1972 to 1976 were generally in the rangie of 95 'to 110 ft msl (20 to 35 ft bgs in the power block), with"the highest water level measured in the perched, groundwater system of 130 ft msl.

Regional Water Table: The regional groundwater table corresponds to the water level within-the. alluvial ýdep.osits: and terrace deposits outside::the clay ridge 'an'd are reported (to*

be in the,60-.to 8 5-f*ot msl elevation range (approxiiimately,.50`Sft: bgs in the power block area). Gron dwater flow in -this deosit is in a generally westward 'direction toward, the Mississippii River:,. In the southernmportion of the site, groundwater flow, patterns in the Mississippi -River daluvium are strongly influei*cedhby: the pumping from foir radial wells that supply water for the GGNS cooling water system.

Potentiometric.Head:,The potentiometric head in the Catahoula Formation was reported to be n the range of 55-to 80-foot msl. Groundwater flow in the Catahoula Formation is expected to be generally towards the 'westwith discharge to the Mississippi River.

3.0 RECENT GPIYFIELD ACTIVITIES PERFORMED AT THEGGNS PLANT

-This section sunim'ahzes information provided yb~ Entergy pertaining) to, recent field investigationIactiyities performed by others at the GGNS site-in support of the pending Combined Operating LicenseiApplicatfi6..(COLA) for the propoed GGNS.Unit 3: Plant, and incorporated a-s part of the oveiall GPI activities forthe existing GGNS site.

4 Note that the term "perched" is used in this document to be consistent with the historical terminology used for the elevated ground~water in the power block portion !of the Site. In reality, perched *aIter classically refers to water elevated above the regional water. table with an unisaturated zone beneath.,GZA believes that the elevated water identified in the. powei:blck area 'may actually reflect m'ounding if groundwater due to the extensivc ý dge of low permneabilityclay and that an unsaturated zone'may not exit below theelevated waterin tifie power block.

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3.1 GROUNDWATERKMONITORING WELL INSTALLATION Monitoring wells were recently installed at the plant to support the GGNS Unit 3 COLA., A.total of 44 groundwater monitoring wells were installed at locations west of the existing GGNS' Plant within the terrace deposits or MississippiRiver Alluvium. Four (4) of these wells located closest to the GGNS Plant (designated wclbý-MWl02OB, MWl026B, MWl027B,*and MWI 134B)'were then

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fo gr nwater monitO inigfo tepr ou1w17r m

for-t sence ofo radionuclides in support. of-the GP otitities'fhe GGNS Plant. We'llocationsareshown the groundwater contouvr plans provided

, n Appendix C. Boring logs forithese *wellsý,were not provided to GZA f6orreview, 3.2 GROUNDWATER SAMPLING AND ANALYSIS GZA was provided *ith groundwater monitorinig data (anaiytical testing and groundwater elevation measurements) for each of the new wells.

Groundwater monitoringrouunds were performed on July 31,1 2007, 'October 31, 2007, February l,2'008,a adt'Aprl 114, 2008. Each of the samples was tested for tritiumt and gamma activi-ty by Entergy's 'Ch'emistryLaborator.Aayia eutr providedBytcalreults are 3.3 : GROUNDWATER ELEVATION MONITORING The draft CoLA for*GGNS Unit 3 includes groundwater contour plans prepared' based on groundwater level measuremenfts in the niew wells on~ Decemberi 2006 and May ~2007, corresponding to~ the periods of highest andi]owest groundwater elvtos epetvl.Cpe of these plans aie provided in Appendix C. Groundwater measuremn*nts are provided intable 2.4.12-202 of the draftCOLA:. Depth to groundwater measurements recoi*ded in the wellsiused for GPI, groundwater'onit in ranged from approximately 45 to' 60 fet below the ground surface.-

4.0 FINDINGS OF. RECENT GPI FIELD ACTIVITIES The follovwijg subsections provide a summary of GZA's review of die recent work perfornmed by others !at 'the 'GIGNS site relative to geology, hydrogeology, and groundwater monitoring results.

4.1 GEOLOGY Although GZA was,not-provided'.Vith copies of boring logs for 'the new,COLA' wells, the information presented'within the draft COLA' sugets the susrfc maeiasencounitered in th'e new borings w~ere 'generally' consistent widi :the materials previouslydescribed for. the site (Scction.

4.2 HYDROGEOLOGY AND SHALLOW GROUNDWATER FLOW DIRECTIONS The..informatid'n presented iin the draft COLA indicates that small isolated area:s of perched groundwater exist in the loess. The soils of the Terrace Deposits (a k a. tile Upland Complex) are the

'principal shallow' groundwater bearing unit at the site, consistent with the pre-existing information.

5ý 54l50 1"i-o,4134cS, 14 Tese parameters iniclude, ~Mn, "8Co, 5.911e,_Co, Zn, 95Nb~Z, 9

311, ~C "s'

9Ba, and 'La.

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As stated:fin Section 3.3, gfoundwater conto*ur plans provided in the draft GGNS; Unit 3 COLA were. based on groundwater level measurements in the Upland Complex wells recorded in December 2006 and May 2007.

Copies of these 'plans are provided, in Appendix C., Foreach plan, the groundwater elevation contours depict a 'groudwater gradient to the west/northwest towards the Mississippi River, consistent with the SCM." The: available information also indicates that although'an aquitard exi*ts7 between the Upland Complex and the underlying Catahujla Formation, a downwards vertical hy4auli gradient from.the Upland Complex to the. Catahoul a formation exists.

Although the groundwater contoursfom theý GGNS Unift3 COLA provide a solid understanding of groundwater -gradients west of the existing GGNS p!ant, ýthey do not show actual gradients' and flow directions within the 'existing piplant. In additioii*, beiauise A1) the closestiftheSe welis.t0e

eis~ting,(GGNS plant are locatedapproxlmately 650 feet west of the GGNS plant, 2) that they are spaced 600 to 800 feet apa*-,:and 3)'that only oneJwe'llj(MW-f027B)"is hydraulically'downg-radient o f the plant, this monitoring wel network droes not provide :adequate groundwater quality monitoring, for the existing plant.

4.3 SAMPLING AND-1ANALYSES Radionuclides were not detected in any of the groundwater samples.collected from the new monitoring wells sampled as part of the GPI programx (Section 3.2). However, it is noted that none of these-wells is likely installed immediately downgradi~nt of the potenti'ly contaminatedSSCs within the powerblock.

4.4

,COMPARISON,TO THE SCM As discussed above, the recently collected GPI field data 'are generally, consistent with the Site's SCM. Thus, 'no changes to: the SCM6o'rthe*'Plintis' Final Safetyý;-ii a ysis kReport (FSAR) are suggested at this time. A brief summary'of key findings of the new GPI datarelative to the pre-existing SCM is presented below:

The sbsurfaceC aquifer materals desrfibed' in the *draft COLA, are generally c6nsistent:with the, SCM wh~ichincludes,,, a layer of loess. overlying alluvial materials of the "Upland Complex..

The groundwater elevation.:data and interpreted groundwater :contour plan provided are generally -consistent;with' the,anticipated westerly flow towards' the Mississippi River and Gin and Hamilton: lakes. Tritium and gamma activity were not detected in i~*ny o he, samples collected from the new wells. 'However, as noted above, these wells are not likely I cated immeditely downgradTientof potentially contaminatedSSCs.

' The ýavailfable analytical. data do not indicatee that -radionuclides are migrating off-site into the Mississippi River.;,

5.0 EVALUATION OF THE PLANT'S GPI PROGRA RELATIVE TO NEI GUIDANCE Consistent with NEI 07-07, Objective 3.1i, iGZA has assisted t

in performing a self-ass4essment'of th'e GGNS Plant's GPI program. In performjingý' ths assessment, GZA completed the checklist: provided* in Appendix B of NEEI07'07 anrid included in this report as.Table L, An overview of thexresults and key findings of this review 'is presented below.

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Our assessment of the Plant's progress relative to the NEI.07-07 criteria was based on information providedby Entergy, including:

various documents associated 'with recent ficl d activities including the draft COLA for GGIAS Unit 3.

- corporate and.Pla'nt proceduires, anid program documents; and

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li sting of te documentsvi~we& and: personnel contacted is ipresented i Appendix 1D.

It should be noted that the NEI guidance document '<is >a little".over 12. months old.

As 'such, facilities acr~oss the countryare*currently working to put in place GQPlprograms consistent with this gudance. As withi any endeavor involving an uniderstaniding of s-bsuriface conditions, this> Is best accomnplished in ani iterate fashion., As suchoand gien the newness of this programsome degree of follow-onwork to b expected, s programs aeinitidatediand then refined.

5.1 OVE RVIEW ASSESSMENT Entergy and the GNS Planit personnel have made a significant commitment to the GPI Initiative.

This eifort commenced in 206,; before fuial NEI guidance was released in 'August 2007 has included, among other.thigs:

the preýparation of' a corporate, GPI program; ~

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prepor*t);an hial hydrogeology assessment of the Plant (January 2007 PhaseI 0 the installation of supplemental Site monitoring wells (Section 3.1);

implemientation of groundwater moritoring (Section 3.2); and 0

initial stakeholder comm* nications about the GPI

'programn.

This has resulted in real progress at the Site and substantial achievement of the NEI objectives. A brief summary ofthekey findings for each*of the NEI objectives follows. 'Additionaldi*iscssion is provided as comments wlthin Table 1.

3 5.1.1.

Key Findin.igs Objective1."- Groundwater Protection.Pirogram Based on out review of the information provided,& ZA is of the opinion. that Entergy and the GGNS plant

'have miaide real°progress towards metiing th general criteria of Objective I of the 07-07 guidance document. This opinion is inffer 4

a th hinformation p tedin the Phase I report, combined witbhthe data 'fromthe rNecentGPI field activities, forms the basis of the SCM.as presented herein.

Howeverit"isinotedthat, a with all dit characterizations conductedfollowing an obser n

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toe date

-tofn teatveposesvasodatapgpsarac'e andti addressoiedanod the" should be considered par ierative proce a

dentifi d

ad dt SCM is refined., For the GGNS site, the available data indicate that the followig nh etsmtto the existing GPI program are recommended t'o mheet the 07'07 guidance document:

' 'Performance of< a groundwater" monitoring well inventor'y to assess> the status of existing wells at theexisting GGNS site. Ifthetiesultsof thisinVenitory indi&ate that' existing "wells,:

are servie and appropriately positionedjslct iadditioinal wells should be' usedto assessgrou0ndwater gradienits; 'flow: patiway' anod groundwater" quaity. at 'the existinig 09.'0025576.09 Page 7; :

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GGNS plant.. ýIf the pre-existing: wells.Iare, not serviceable, 'installation of additional

.monrlitorinhg wells to betterd6efie the on-site horizontal and vertical hydraulic gradients within thie power block area would be required.,

Preparation and implementation of a, site-specific.groundwater monitoring plan, including groundwater rnonitoi0ng;locaiions,, sampling, frequency, data quality objectives,

,and procedures for perodic review and revisio'n bfthe plan; Preparation and implementation of a buried pipe and tank monitoring and inspection plar;'

o.....Expansion 'of the plant's.risk-assessment of: engineering systems to include work practices

and existing leak detectionsystems and pograhms; and Preparation of a remrdialt action plan. to address potential spills and releases of licensed material at the site, 5.1.2 Key Findings& Obiective 2 - Communication External.communications.is managed:in.accordance with Entergy's written procedures. These procedures.are generally,, consistent with

-the criteria for Objective 2.

"Thus, only minor enhancements are suggested"'including but not limited 'to the addition of procedures for the notification of NEI officials.

5.1.3 Key.Findings: Obiective 3 - Program.Oversight Through. completion offthis review, the plant is' complying with the NEI. Objective for Program Oversight. Further reviews in' the future should'bebperf0rmed in accordance with NEI guidance.

6.0 OPTIONS TO ENHANCE CURRENT GPI PROGRAM Options to enhance the current GPI program a4tthe plant are included in Table 1.

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<1/2:

TABLES

TABELE I NEI SELF ASSESSMENT CHECKLIST Grand Gulf Nuclear Station' Fort Gibson, Mis~sissippi Guideline I Section Objective/Acceptance

. *.:Criteria SI IEnsure that the site characterization of gology And "h ydr6 log y pvr ov ide ;s an:

understanding of predominant' ground water gradients based upon current sife conditions.

1.l.a Pe*oirm* hy'dr6eologic and geologic studies to determine predominant ground *water flow characteristics and gradients.

WOCauons WeStOI1 ine plant in support oi toe ~t-1OA ior UJJNZ Unit 3. The data from these wells; along with information

,provided in previous studies, fornman initial basis for assessing regional groundwater flow directions. Based on these data, the dominant shallow groundwater flow directions is towards the west/northwest-in the, vicinity of the proposed GGNS Unit 3I Additional explorations are required to confirm groundwater gradients and groundwater flowdirections in the area of the existina GGNS nlant.~

positioned, additional wells should be used to assess groundwater gradi~ents, flow pathw~ays,~ and groundwater quality at.the plant. If the pre-existing w*l*s are not serviceable, additional monitoring w*,ls in and around the power block area are recommended to assess site groundwater gradients and flow directions at the plant.

1. l.b As apipopriate, review existing Yes Substantially com*6leted Jaiuary 2007 and presented I in the

-None

.hydrogeolegic and geologic January 2007 PliasieI Report and draft GGNS*U*it 3 'COLA studies, historical~~

report.

environmental studies, and permit or license related reports 1.1.c Identify potenitial pathways for Yes*

Initial identification.of pathways completed January 2007 and Review and update SCM and associated pathways following ground water.migration from presented in the January 2007.Phase I Report.

any additional site characterization conducted tinder 1.l.a on-sitte locations to off-site above.

lIocationsthroughi grou nd water.

Notes:

indicates progress has been made towards meeting the stated NEI criteria. However, additional progress is required to fully meet the criteria..

09.0025576.00 Page I of 14 GZA GeoEnvironmental, Inc. (GZA)

TABLE 1 NEI SE-LF ASSESSMENT CH3ECKLIST Gra.nd Gulf Nuclear Station Port Gibson, Mississippi' Notes:

indicates progress has been matde towards meetingthe stated NE i

on pgress is requiredto fully

meet the criteria.

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-* Page ;2, of; 14 GZA GeoEnvironrmental, Inc. (GZA)

TABLE 1 NEI SELF: ASSESSMENT CHECKLIST Grand Gulf Nuclear Station Port Gibson, Mississippi Guideline Objective/Acceptance Section Met Comments As Required

- Potenrtia reas for Improv'ement Section Criteriai Yes-No 1.2.c Identify potential.enhancements No Information pertaining to potential enhancements to leak detection Assess potential enhancements to leak detection to leak detection systems or systems from the potentially contaminated SSCs identified in the systems

.programs.*,.

Phase I report has not been provided to GZA.

Fullyimplemet Entergy procedure number EN-DC" While the new wells to the west provide some enhanced leak 343, BuriedPipming ai* dTanks Inspection 1Program detection capability, the* are not close tothepoer block and are not *ell-positioned in general to serve'as a pro-active leak.

detection mechanism within the intent.of this criteria.,

Plant personnel indicate that GGNS has begun to implement EN-DC-343 'Buried Piping andTanks Insp6ebtion Program 1.2 d ldentiff potential enhan cemebits, No The infomation pifh*ided bythe GGNS*jilant did not indenti fyI Complete an assessment olf'procedre*e and equipment potential enhancements or an assessment of potential to prevent releases from reaching groundJwater.

ireaching ground water.*

enhancements to prevent spills or.leaks from reachiug the' groundwater.

Fully implement Entergy procedure number EN-DC-343, Buried Piping and Tanks Insplection Program.

Plant4persomnnel indicate that GGNShas be~un to implement EN-

" (i...:..:i,":

DC.343 Buried Piping and Tanks lnsjpeciiofi Program, 1.2.e Identify the mechanism or site:

Yes

'Corrective Actions are identified and tracked in accordance with

None,

!process for tracking corrective Entergys corporamtecorrective actio* program (Procedure EN-LI-

-actions.

102). Un+/-der this program, when a problem is identifieda-condition report (CR) is initiated, corrective action swill be.

__,_________7__-.

assigned,. and the.CR is dispositisned based on its severity.

Notes:

indicates progress has been made towards meeting the stated NEI criteria. However, additional progress is required to fully meet the criteria.

09.0025576.00 Page 3, of 11-4 GZA GeoEnvironmental, Inc. (GZA)

TABLE 1 NEI SELF ASSESSMENT CHECKLIST Grand Gulf Nuclear Station

~Port Gibson,; Mississippi Guideline 0Objecctive/A ccepta nce MetinAe Comnments As Required PoetaArsfrImovmn Section Criteria Yes-No§ 1.2.1' Establish long term programs to Yes*

perfnrm preventative.

miaintenance o suirveillance activities to miinimlize the potential for inadvertent

releses of liceinsed materials due to equipment failure.

geolo gstdis e develorped 0-pp othe nSof tp rihei GGSUiet3C Howstshevr the w...s'are*r k'

prP a

u lci

.icpal dowrad.ent lo ot*id toview thes d

uperiodicjreviewscof SSCs and..

e.othe powe bloc, h

ars not' been West/noraties.

1.3 Establishacementsit f

ground water' ie tr positioned progngradoeensurentirel monitorit

f n

gdvlwell w*adiological tninp stnh thesineet hs A

ta

'from teplesntebtlwihinshepwlls are now neded downgradi ent of thepoer, block tohts e

fills are "ot w

a hydr.ulically d r

i to tie boundary defined by the site data gaps in the recently installed COLA well network, 1..l Conisider, as appropriate,

'No T-here are cur rently no sentinel we lls at the GGNS piant<

Evaluate installation of sentinel wells near potentially plcn tontinelwell to contaminated SSCs, taking into account other leak detection SSSCs th-at have the highest and surveillace activities potentialfo'r'inadvertent releases that could reach ground waer'rS~

where~

leak detectioni capability'is limited.

44 Notes:,'indicates progress has been made towards meeting the stated NEI criteria. However, add iti onal prgesis required to fully

~meet the criteria.4 Page 4 of 14

.gGZA GeoEnvironmental, Inc. (GZA)

NEI SELF ASSESSMENT CHECKLIST

Grand Gulf Nuclear Station

ýPort,,Gibson,,Mississippi Guideline

-O bjectiveIAcceptance Sedtion Met Comments As Required Potential-Areasffor improvemint S..se ti

~.on "C

riteiia Ye.....

V_

L.3.c Establish samanpling.and analysis Yes*'

While ongoing groundwater monitoring activities have been Prepare site-specific groundwater monitoring plan.

protocols, including analytical initiated at GGNS. a comprehensive written, plan including these sensitivity requirements, for details has not yet been prepared.

ground water and soil.*1 1.31, Establishi a formal;- written program for longternt grou.nd water rnonitorineg

-'~

Yes*

Grouidwaterimonitoritegy. tthe GGNS plant is performed in accordancewith

-intergy

-Procedure'EN-CY-109 Prepare site-specificgroundwater monitoring plan l.3,e Perio'dically reiew existing-station or contract lab(s) analytical capabilities.*K Yes*

While initiati roundwxater m6nitoring activities have been

, a,ompreheniye written. plan including these Itbeen prepared Prepare site-specific gro undwater monitoringplan L3.f 1.3.g Establish a long-termn programn for preventative maintenance of ground water wells.

,Yes*

mionitoring*activities have been

-hensoitwritteii plaining. t-c. e

,ared:.

~~iiidn hs mon01itofiniz activities hav.e been-Prepare site-specific groundwater monitoring plan

,rou*ndwater h~.

1.4 Est.

and 10 1 1.4.a -~

o.tn making iation of leaks instances0of and shall wa*s 1 ;4.b for planned Yes*

-Licensed materials have not been detected in groundwater samples :from thesitewells.

s The potential for detectible levels of licensed material resulting.fromfplarnmed releases (e.g.. airbolne wash-out.of Tritium) should be considered-in future groundwater monitoringreporis, Notes:

indicates progress has been made towards meeting the stated NEI criteria. However, additional. progress is required to fully:

meet the criteria.

09.002 1 5576.00 Page' 5 of 14 GZA GeoEnvironmental, Inc. (GZA)

TABLE I NEI SELF ASSESSMENT CHECKLIST>

S Grand Gulf Nuclear Station Port Gibson, Mississippi.

Guideline Obj ectiv e/A ceepta nice Section Met Comments As Required Poten'tial Areas for Improvement Section Criteria Y es-No 1.4.....

E ate and dou.ent. as No Based on: the available information, aNl evaluation of-the impact of Perform an evaluation ofdecomn-*..

imat.

appropriate, decommissioning site conditions oil plan~t decommissioning has not been pet-formed nsoigipct imnpacts resulting from reuniediation activities or the

________absenicethereof.'

1,5: Ensure that records of leaks, spills, 2.1 Eiacho leffrseae s ruleonutain itia andP petrioeicbrleftngseet the rqirementespeofl 10 programn titt o meete Stthe/Loca.lhs ieswr eiee sprto e207Pae1 2 1 a c h Ti icn see should n d

isc s Y

init' b

The background or industry wihmncplofcas a enprotid events that led 'to the GPI ii)

~

Ifpi~re t~hat the State/Local ofFicials need to better ujnderstand th1e issue or place it in perspective for their onstituents~ iii)4 "HoW the State~/1ocal oficials Will use or. distribute the' L iolrnnation~

~Notes: *indicates progress has been made towards meeting tlhe stated NET criteria. However, additional progress, is required to fuilly, meet the criteria.

-A 09.0025576.00 D

"rii i

talntUL 1%(iiAanodnirnm-.l, nc,(ZA age 6:o,

t.

GZ-A.:. 6.oEnvironmental, Inc. (GZA)

TABLE 1 NEI SELF ASSESSMENT CHECKLIST Grand Gulf Nuclear Station Port Gibson, Mississippi Guideline Objective/Acceptance Section Met Comments As Required Potential* Areas for mprovement Section Criteria Yes-No 2..l.b Lic'nseeý'sshould consider No The information from the GGNS plant do not indicate that Provide communication updates with municipal officials including additional additional updates have been made to municipal officials inffonnation or up~dates on ground watei protection in periodic discussions wvith State!Local officials 2.. 1c ForI jicenseesthat are in States Yes.

GGNS is the only nuclear power plan in Mississippi.

None whhere multiple nuclear power plants arelocated and multiple

.owner companies, ittisaum I

y::

recommended thatithe licensees coordinate their efforts ~and COMiMUnicate withi each other.

~The inital briefing for the,.

State/locl officias and~ the contents of a voluntary communicatiion should he consistent.>

Notes: *.indicates progress has been made towards meeting the stated NEI criteria. However, additional progress is required to fully meet the criteria..

09.0025576.00 Page 7 of 14 GZA GeoEnvironmental, Inc. (GZA)

4 fr 4

TABL~E I NEI SELF ASSESSMENT CHECKLIS IT Grand Gulf Nuclear Statiion Port Gibson, Mississippi, r=

-II II Impr ia] olliwals the end of ifan lill to the

-a ll roundwater If a spill or

ýallons agencies witnin one Dusir environmental of contami or of unkfiown volume, o warrant aoLuntarg comnt*

Collditions triggering this Than :1 OOgalloiis, the planttto lede. i:n I

eei:L Notes:,

indicate's progress has been mnade towards meeting tlie stated NET criteria*' However, add Ional progress is required to fully mneet:th.e criteria.

09.00255*76:.'00 Pa,,,e 8 of 14 C,

GZA GeoEnvironmental, Inc. (GZA)

TABLE 1 NEISELF ASSESSMENT CHECKLIST Grand GufNuclear Station Port Gibson, Mississippi Guideline 0 bj ective/Accep tnce Section Met Comments As Required.

Potential Areas for: Improvement*

Section Criteria Yes-No:-

272.b C

tmmntiication w.vith the.Yes Enteirgy's procedure EN-RP-l 13, Response to Contaminated None designated State/Local officials Spills/Leaks, requires notification of Federal, State and Local "shall be made before the end of agencies within one businessiday of.the confirmed detection of the next business day' for a activity. in either an off-site or an-site groundwater or surface water sample result (i) of0off-water sample.whidi exceeds ihe REMPreporting criteria. To our site ground water or surface kiiowledge no conditirnstriggerinig this notification have been.

water that exceeds any of the recorded.

REMPreportinmgcritar for water as described in tile ODCMIODAM, or (i!) of on site surface water, tha is hydrologically connected to ground water, or ground. water

.tlhiit is or could be used as a source of drinking water,-

exceed anyofthe REMP reportingg criteri,for w aiteras -.

' I :.

described in the

______ODCM/ODAM

~-

2.2.1c "When*iconii*ifcitihg to the Yes Entergy's procedure EN-RP-1 13, Respo:nse to C*ntaminated None State/L*cal officials, be clear Spills/Leaks provides guidaneefor commurcatins with Federal, and precise in quantifying the State and Local officials. :To our knowledge, no conditions actual release information as it triggering this notification have been recorded.-

applies toithe appropriat regultory criteria.

2.2.d Voluntarycommunication to Yes As stated above, Entergy's procedure EN-RP-l 13, Response to None State and/or Local officials may Contaminated Stills/Leaks, includes notification of Federal NRC also require NRC niotifieation regulators.".To o n*rl0wledge, no conditions triggering this under 10 -CFR 50.72(b),(2) (xi).

notification have been recorded.

Licensees Should perform these.

notifications consistent with their existing programr Notes:

indicates progress has meet the criteria.

been made towards meeting the stated NEI criteria. However, additional progress is required to fully 09.0025576.00 Page 9 0f.14'.

GZA GeoEnvironmental, Inc. (GZA)

Notes:

indidt*aStpogress has been madet-'owards pneeting the st ated NEI criteria, However, additionaflprogress is required to fully meet the criteria.

09.0025576.00 Page. 10 of 14 GZA GeoEhvironmental, Inc.,(GZA)

<'V TABLE 1 NEI SELFASSESSMENT CHECKLIST Grand Gulf Nuclear Station Poit:Gibson, Mississippi B

Guideline Section I

Objective/Acceptance Criteria 2.4 Document all on,-site ;ground water sample results and a Idescription of any significant on-site leaks/spills into ground w~ater for each calendar year in tlie Annual Radiological TEnvilonmnital Operating Report (AREOR)_

for REMP or the Annual Radioacti eEffluent~

Release Repor (AREUR) for the REeTS as cna ne-nthe appropriate Site reporting procedur'e; beginning with the repiort for

ýcalendair year 2006.

214.a Cormplete appropriate c:hanges

.to the ODCMJODAM or to the appropriat6 procedures to support the 2007 report, For new plants, appropriate procedures that-require inclusion ofsigr*ificant on-site leaks/spills into ground water and all on-site ground water.

results shall be developed and.

implemented prior to-initial receipt of nuclear fuel**.

t

.. I ra r

Notes:

indicates progress has been made towards meeting the stated NEI criteria. However, additional progress is required to fully meet the criteria.

09.0025576.00 Page 11 of.14 GZA GeoEnvironmental, Inc. (GZA)

TABLE I NEI SEL~F ASSESS MENT CHECKLIST Grand Gulf Nuclear Station Port Gibson, Mississippiý

.Guideline Objective/Aceeptanee j-Section M..et

'Commes As que Potential Areas for Improvement "

Section Criteri

'Yes-No 2.4.*3 Report on-site groundwater' Yes Informationrprovided by the GGNS Plant~indicate that the None isample results as follows i) available grCd)Unwaer monitoring data were appropriately Grounndwater s ple results ii-port'ed in the 2007 ARERR:. Ho%&eier, a copy of this report was that areiaken in*support'*oftie not provided for revieiw

GPI but not par of REMP in the AREý_R ii) For long-term

.sample mints that are included

~in the REMP as described in~

the' ODCMI/ODAM, the~ resul~ts M~~are reported in the AREOR; thosejlong-ternm satmple points that are not included in REMP, the results are reported in the ARERR Notes: '* indicates progress has been made towardsmetntesttdN Iciei.H wvradtoalp ges sre irdtfly meet the criteria.',

etnTesae E

rtra o~eadtoa~rgesi eurdt ul

09.002:5576.'00:

09.00557600

'Page'l12 of14~

GZA GeoEnvironmental, Inc. (GZA)

TABLE 1 NEI SELF ASSESSMENTCHECKLIST Grand Gulf Nucilear Station Port Gibson, Mississippi Guideline Objective/Acceptance Section Met Comments As Required Pot'ential Areas for Improveme ht

Section,

, Criteria Yes-No 2.4.c In addition to 2.Eb, voluntary Yes*

Based on information provided by the GGNS Plant, this Verify that the information will be: provided in the 2009 communicasionsshall be information will be provided in future reports as appropriate, report included as follows:' the followingare to be included in eitherthe ARERRand/or the AREOR i)A description of all

Spills or leaks that were communiicated per Objective

'2.2 acceptance criterion a shall be incluided i the ARERR ii)

All on-site oroff-sitcground.

* ~water samiple result,; that~i.-.

exceeded the IREMP reporting thresh~olds as described in the ODCMWODAM thatwere communicated pr Objective 2.2 acceptance riterion bshall.,

S.

ARERR and/or the AREOR 3.1 Perforni aself-assessment of the GPI program (referencesthis check-sheet) 3 la

'An independent, y

Performed by GZA None knowledgeable individual(s) shall perform the initial! self

'assessment within one year of implementation,*

3.1.b

-Perform periodic self-assessments of the,GPI.

program at least once every five years afmer initial self, assessment.

Notes:

indicates progress has been made towards meeting the stated NEI criteria. However, additional progress is requiredto fully meet the criteria.

09.0025576.00 Page 110if 14 GZA GeoEnvironmental, Inc. (GZA)

TABLE 1 NEI SELF ASSESSMENT CHECKLIST Grand Guilf Nuclear Station SPort Gibson, Mississippi Guideline Object ivelAcce pta ncc

'Section Met Comments As Required Potential Areas ~fo1 Improemnt Section Criteria Yes-No 3.L1 The self-assessment, at a minimum, shall evaluate implementation of all ob~jectives identified in this document_-

3.14~

The self-assessment shalL be documented c'onsistent with aplicable procedures'.

_3.2 Conduct a review of the GPI progrm inicludinig atla minimum the licensee's slf assessments, under thle auspices of NELp 3.2.a.

An independent, knowledgeable individual(s) shall peýrform the initial review within one year of the initiail self-assessmnent performed per

_________objective 3.1. a above_______________________

3.2. b Periodic review of the GPI progranm should be prform~ed every five yea-rs, subsequent to the license's periodic self-assessment performied per

~ Objective 3. Lb above, Notes:

indicates prog'eSS hasbeen made towards m eeti*

tlhe stated NEI criteria.

meet the criteria.

Howveer,, additional progress-is required.to fully 09.0025576iOO

.. 05560Page 14 :of 14 GZA GeoEnvironmental, Inc. (GZA)

FIGURES

Outside of Scope

<*~

>~5§~

~

4V APPENDIX A LIMITATIONS

APPENDIX A PROJECT LIMITATIONS

1. This focused, report was. prepared for use by the Client at the :subject Facility, for the limited technical and legal: :urposes stated in the report. We, take noresponsibility :for other. uses of this'report or for useby other.,parties.

2. By agreement with the Client, we reviewedandrelied on,information provided'byrthe Client andFacility tio develop6our opinions. We also relied upon public sources of information to help.develop our understanding of the Facility's 'sydrogeologc, setting.

Local subsurface conditions ýor soil heterogeneities may exist. andimay subsequentIy be shown to'have an unanticipated effect on groundwater flow patteins. These were initial reviews;, we did. not attempt to verify or validate information, oral or wri ttenf.

3. Unidentified and/or unanticipated conditions may exist. Shoulds§Uch conditions.become obvious, it may be necessary for us to *reevaluate the opinions expressed intlhis report.

4. Our findings and.conclusions are, provided as professional,opinions, and not as statements of fact.

5. Our services were provided withthbedegree of skill and care ordinarily'used by qualified professionals. performing the same ore similar services,. at. the'same time, under similar circumstancesz in the same or sirmilar locations. No other warran 'expresed r 'implied is made.

09.0025576.00 4/15/09

Oz 4

4

~'

APPENDIX B ANALYTICAL RESULTS

S.I j K*

',,.SAM:7LE"T P.E '4 SM IP.LEO 7

ENDi ME D113-

4S1,,

5

.S2 I S3..

4"0-0 6]

95..

S71ZRý.95-88 1*.x*-,31

-9 6.3-S.

C 137-1,

MW.11348 Pro.I'.*"4~~.

GGNS" 20070820GMW *:mple 9731/2001 8:06,<

12.34j 4

8 47*<

18.85 <

975<

17.00<

10.68

-17 43-<

'-11 88 j '.14.02<

10.35 GGS:"

200708216,GMW 0W-113;LGW

': i 1328<

10957%

7.25j<

2189<

75<

2954<

146.2 16.2.<9<

8'836' 2281<

16 84

GGNS 200708228GMW sampl.

7/31/2007L..

9:51<

8.707<

9.29 16.9141 826<

1951<

904<

1231<

12<

799' 745 dGNS 20070823" GMw

!.MW10278 GW 7/31/20071

151<

.35*< "

.979 16.03 6,7<

2516 86<

17,870 1484 <

928 77.2.

7 GGNS 20070824'GMW

'Sample 7131)20071 11.38 8499%7 1034 18517<

180%."

16031 18' 1<699 1009'

<008" 896

.GbNS 20070825'GMW_

iM-00 3

7/31/203.

MW-1027BPost-03 11.28 366J6 93-8' 14"68 <

12.13 <

7.90 -g 8,37:

.GGNS3 2007613MW samle 731/20307*

1328 501 835 21.28<

7,52<

18.9<

858 1<

90.2' 88 8.472<

IGONS 200708273MAW'

ýMW.10268 GM,__

7/3112007ý 14:40<

1248 01 12<

12' 18 13.17' 01%

19<

23<

43

ýMW-10266 Post-4 GGS 20070828 GMW

__ iaiple' 7/31/2007 1500o' 10,74" 1

991 1141<

8.30' 2193<

09 44 23.2 2

qMW.1134b Pm-GGNS 20071175 1"GMW Sampl*

131200*

00 7.87<

79<

1603:<

?

6.301<

14031<

&89<

18.10 <

13.04 7629<

8 GGNS 20071176SMW MW"-1134B W

1G0/3I 34J 6251W< !

k.

12 5.<.

1.250<

81.<

9 3415 1234 117" 8<40<

6 11 A' GGNS 200715177 GMW Sample

/31/206*8

45 <44 7:310.

7.0 13.27<

8 10290<

867<

I 812.68<

13,14 7'258 <

8. 1826 GGNS-20071178035MW

.MW-1027BGW 1*/31/2008j 100

< 6:96' 3

12<

18.20 <

-833-<

13.15-

8.

.68*-<

9

.7.08 IMM0278 Post-

GGNS6

'200711792GMW 1Sampl st. -

1011/001 11i00.

1010<

10.66, 23 501<

12359 883.<

.170<

2 1444'.

13.727<

6.25 "GGNS

200711804GMW 1MW-I2O8'GW i/3142007 12:15<

921<

285%

652%

1733<

16< 0 1538<

186<

7.90 110 MW.*10208 Post.

t GGNS=

200711810GMW iAMpleO

.POS 10/31/2008 12i20<

7 t0.2ý<

7 741i<

13023!<

6090<

14.01%

6.55'

" 1165<'

1059 <

7.837<'

7.901 GGNS :2007183GW.

MW-10268GW 0/314/2007 1330 874 7'64<

125t 1712<

836%

1453%'

11<3<

1230.99' 713' 667 2'M'-1026 Post 4

2 1

5 i

207

.83GM 10/31/2007 13ý40 <

8,51,<

9.30 10<

5' 25,90<

1023%

14.15 1<

81 9.82' I STE40D

,.A lO rZ E PE' ENQ('Q E,

7 EN0DTIME 1'11'.MN-54,

<SZ M

1 C0-58:, JS3 ý'FE-59 4'j S4 S-6 51 ZN-OS'..I 61 NB-5 I871 'ZRý95 4

6I8 I-1-131

[S91 'CS.134.'. 1 T'T0S`-1_37_

GGNS I 2008OZS1ýGMW-AMW-1 I34bPr 4 2l/0 8:30".1074'<."

7.88;<,~17.25 6.05-2390()<

6.94.<

1.56 <

12.84!

7.98, 8.46

'S 2008025f G3M W_'

M-14G 2//08l 9:15%

7A0<

9

%I.2 65 <

17,71% <

81<

12.95' 19<

.4<r~.9 GS.20080253 6MI.,

NV1l134b Post 2//201 9:30<

U&~

7;861-<.

21;95i<

8,24%

104<

8.59'. <

12.64"'<,

143' 4

9.60 GGNS" 20080254 GMW4_-'afýsd 2/1/2008' 10()35 5:3:2' 55<

13.60'<

i 5.97!

13.57%<

8,49 12.58 <

1.1 33; 6.83<

604 GGN208OS5GMW MWALO278Bpost 2//00' 100' 0,

130" 98 128 8.9<

.196 15<

78'.

84

,16GNS 20060256fGMW'..

IR 6

MW-1028G 1112-0 Ur 105

-6: k 582; 1

5'<

1.0%

58 12

.39:

1170<

64' 5,90 GGN 20027iM 742<66' 13.221<

4.69' 180V<

9.05<

1709<.

12.97?<

106 837<

~GGS 2080581MW MW-106 13W 2/1/2008k 13:15,<

9,721<

~167 9.4 1 ;<

15.35 <

12.10<

01<

35<

93 95 GGS 0805GM j~-029pot 2/1/2008 13<~

~

7.56 17.15'<

109<95 03 33 14<1 97 11.25

GGNS

'200804761MW_

IMW-II134BPRE 4/14/200!

80 10.90%

92<

183 82 26.75' 04 14,59%

112 101 1109

~G~0847~1.MW..MW114BW 414208~92%

511 95' 116 87<

228%

12.81%<

14.76' 13627' 7.85<

10.43 GGt~N§20080478"GMW WMW-11634BdPOST,4/141200 9:30<ý

%171<

158<.

14.15' 102<9 9165 22 18 9

200804791GMW JMW.127 1 4/14/20084, 10:30'%

7;251<4"I19%

93 78 93 48 4'

84 8

13GS~00040GW MWIO2POT

/1/208 105<I 72<

84%

180 73' 15.51%

776 1411 1058'<

7.20 6,74 GONS 208048 1GMW M-IOOW' 4/14/2008, 11:35;<

10.46' <

7 6'<

28%

15%

23.63' 10ý25' 15.63' 27 17 0

IGGS 00042'.GW MW4-1O2O POST I'4/14/2008 11:45<

10.24.'

94' 10<

95 84 6.50, 17,16%

110 8807 11.1,2t fGGI4S 2006048313MW JMA

~W1-0~

2 GW 4/14/2008' 12:45 <

_9 -

8b7' 2-2.5'1<

10.71 2692<

980 11862' 12.20<

16 11.43, LGGNS 20843 M1026POS' 41/08 25 9<I 98 80 1%

224!<

9.78<

17.12<

10.75' 79' 4

I SlTEID I LABID.

SAMPLETYP

_~>~AP~D'ND DATE [Sil BA-140. I121 LA-1'40~ SI4 H.3K I rro~r15~

MVVW-11346 Pre-GGNS

'20070820 GMW Sample iGGNS 2007082,GMW, MW-lI348GW

-3 :,

.I, MW..1134Bpost-20070822 GMW sample IGGNS 2N070823 GMW MW-10278 OW MWJ-10276 Post-GGNS 20070824 GMW

-Sample

GGNS 2X170825 GMW VMW-I 020B GW MW ý10208 Post-GOS 20070826,GMW sample GGNS 7120070827 GMWV MWVA126B GW MW-10265 Post-

,GGNS 20070826 GMWN sample MW-lI34BPre-

~GGNS 20071175 GMW Sample GGNS 200711786 MW

'MW.-1 134D GW

~MW.

134B Post-

~-GGNS 2007~1177 GMW

£Sample

~GGNS

~20071178 GMW MVV-1I027B GW MW4L027B Post-

~GGNS 20071179 GMW

Sahmple,

'GGNS 20071180 GWA MVW-1020B GW

-:MWV1020*

Post-

,GGNS 20071181 GMWV aml

!-NGG 20071 182G*MW MVV-I

,26B GW MW-i0268 Post-

!GGNS 20071183 GMW Samj~ple

~SIT IDI LLABIDh~ ISAPILET I

SAMPLE f0.

GGNS 20080251 GMW

. ;,M.-16134b Pro GOi§ 120322 IA N1W 1134b GIN

-:GNS i 2 w0080253'dmw M,: 13:**, Post,

[GONS 20080254 GMW

,~

MW-1027B GW

ýG0NS 20080255 1 1,10

'MW-1027B os

ýdONS

ý20080256 GMW NW-1 027B GVV

ýGGNS

~20086257 GMW MVW-1070B post GGNS

'~20080258 GMW

'MWI 026B OWý JOGNS~ 2008,0259 GMW

.MW.1026B post GGNS 20040476 GMW MW-1Ll1348 PRE

'GGNS 2008,047 GOMW MW.1 348 GW GNS 20080478 OMW W.1 134BPOST GNS 20080479 GMW MWV,027 GW GGN5

~200SD480 GMW KlW-1027 P 0ST GGNS 20080481 GMWV NIW-1 020GW GGNS 20080492 GMW MV100PS GGNS

~20093463 GMW MW-1026 GW GGNS 20080484 GMW MWI026 POST~

7131t2007',

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33.38, 6.09 616.52 I8

APPENDIX C GROUNDWAYATER LEVEL DATA

Grand Gulf Nuclear-Sttion, Unit 3 COL Application Par't'2,.FSAR 2J I'-M' J

General Powerblodk.

Area z '

v/

LEGEND 7

Weft DqLO -bi.06ý,F-4t Grvdm-i*'a.FelM L

'V' Evsting Rood (Cased s~ee AOroeat)con~tour interval - i oot "11f.1"-..Grw....

?

0 425

~

Figure.2.4-12/203. December'2006 Groundwater Gradient Map, Wells Screened in the Upland Complex

,2 Revision 0

4 0=112 I

Grand Gulf Nuclear Station, UnIt 3, COLApplicationa Part 2, FSAR v*, w==

I

5 I**'....

-'-I.

/

General Unit 3 Powerblock Area

~'~?f LEGEND 0

Wel Loc*IK'f Swell Oesi"neion i"

Grmundwater Elevation Feet MSL 2 E swn Sbn~rg EAislng Road

.CQutdwatar EWvOot COntao contour interval - 1 foot.

(Dished Whim A~p i Mset)

Gfo..

dw.tefrlGad'emt 0

425 850

.....F***........

Fet Figure 2.4.12-204. May 2007 Groundwater Gradient Map, Wells Scroened In the UplandiComplex GGNs ESP COL 2A4-9, Revision 0

1+

TA a

r z, APPENDIX D LIST OFF DOCUMENTS REVIEWED AND PERSONNEL CONTACTED,'

APPENDIX D LIST OF DOCUMENTS REVIErWED AND PERSONNEL CONTACTED Grand Gulf Nuclear Station Port* Gibson, Mississippi

<,:NFl4 ;August 2007, Industry Ground Water Protection Initiative - Final Guidance Document, NEI 07-07.*

Entergy,EN-RP-1 13, Rev. 4,'Response to Contaminated Spills / Leaks

, Entergy, EN-CY-108, Rev. 2, Monitoring of Nonradioactive Systems

)Entergy, EN-CY-109, Rev.- 2, Sampling and Analysis of GroundwaterzMoNitoring Wells Entergy, EN-RP-106, Rev. 1,Radiological.Survey Documentation e Entergy, EN-LI-108, Rev. 2, Event Notification andlReoriing

Entergy, EN-LI-102, Rev. 1-2,:Corrective Action Process.

Entergy, EN-IS-112, Rev. 5, Trenching, Excavating, and Ground Penetrating Activities Entergy EN-DC-343, Rev. 1, Buried Piping and Tanks. Inspection and Monitoring Program Draft COL Application, Grand Gulf Nuclear Station. Unit 3, Part 2 FSAR, Section 2.4.12 Groundwater

Microsoft Excel spreadsheet titled "Entergy South GMW Sampling Results.xls" provided by Entergy John M. Lassetter, Grand Gulf Nuclear Station GZA and Enercon, January 30, 2007, Site Hydrogeologic Assessment,in SupWort of Entergy GPI, Grand GulfNuclear Power Station,. Port Gibson, Mississippi.

ML101900406

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1.0 INTRODUCTION

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ML101900406

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1.0 INTRODUCTION

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2.0 BACKGROUND

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