ML20137M250

Rev 0 to JPN-PSL-SENJ-95-099, Engineering Evaluation, Evaluation of PORV Unavailability on Plant Operation

ML20137M250
Person / Time
Site:	Saint Lucie
Issue date:	08/17/1995
From:	FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML20137M095	List: ML20137M089 ML20137M149 ML20137M161 ML20137M177 ML20137M190 ML20137M204 ML20137M212 ML20137M224 ML20137M250 ML20137M266 ML20137M358 ML20137M416 ML20137M495 ML20137M532 ML20137M541 ML20137M711 ML20137M763 ML20137M803 ML20137M907 ML20137P297 ML20137P306 ML20137P338 ML20137P343 ML20137P355 ML20137P365 ML20137P417
References
FOIA-96-485 JPN-PSL-SENJ-95, JPN-PSL-SENJ-95-099, JPN-PSL-SENJ-95-99, NUDOCS 9704080041
Download: ML20137M250 (23)

Text

{{#Wiki_filter:. ~ .%22. 9" MLiTC, y,*rE,.6E5'h " f. 2/ u j i Nrida Power & Light Cosapany i A a-t--lag Evaluation 8 J St. Lade Unit 1 l i S 4 0 anddos 0 MM h s 9704080041 970401 I PDR FOIA BINDER 96-485 PDR j

~ W.,' % Ot'FlLY M % d % R2,4 P.2 A.3/14 JPN PsLetxJ.ss4es Rev. O hoe 2at? l REVIEW AND APPROVAL RECORD i FLANT RL '" UFGT 1 i TITLE Ewahna+4a= af MBV TE_; AlauB*v nn P ^ F 7 LEAD DISCIPLDIE - '7 ENGDEIRING ORE'NTEON M RETIEW/APPAOVALL g FEEPARED TERMEB Arf 90VED FFt. Apr30Tage w anus. = 6 M MM MM M adCE I WA IBA 4Y_ # %c W4_ _ EBCT I WA NA WA WA I4C E WA We WA WA I CrVIL E WA WA WA NA Md Ih.,== 8JMYM* WA l NUc" E 4Zeh, A %*"if7F ff1 W.6 'A reA x m noc,um. x </A L /A 44., .A MI es x WA mA mA ,.i

• hr CesararAer Evnis as INeeranised By Preksis Isamtman As A Mhn On AR itCFIL4.99 Evans and PLAs MA>4mw 4A,/W 3 x,re alscus Arra w Ax4 nam i

i OTEEEINIERFACES e

T4)G 22 ' M 06:27PM VP-57. UC E P! ANT P.3 ) j' aus 17 '95 wasPM Psi. Pts Juso scacs j y,g JPN.PsL.sEMJ.es.ess ) Ii Bev. 4 } Pap 3 d7 !l 1.0 6 i I! Tids evalundna assesses the significance of power operated r611ef valve (PORV) j!I unav="=wy on plant, operadon. For the purposes of this evaluation the FORVs (V1402 I 4 & V1404) are considered to have been inoperable from the time of their overhaul during

l; the fall 19M refueling outags until the forosd omage for Hurncsas Erin in August 1995 (Ref 1 & 2).

1 i il' A root cause determination is being conducted independent from this evaluation. Repair j and testing of the valves willbe =Pted prior to =*: 2 plantmode for which PORV l operation is required. l This ev=b=h addresses the past operabuity of the FORVs 8adada; assident mid==4= !l therefors, this evaluation is classified u 5 misty Related. I 1 2.0 PORY Dealsa Basis Transientirassurn Ralief The FSAR Secdon 5.216 states that the FORVs are designed to relieve pressure during plant transiaans to prevent scenation of the code safety valves. i i Tow Tamnaramra Over Pressure iTOF1 Protaction LTOP protection is provided to assure that the allowable stresses on the RCS pipe' g and vessel are not exceeded dudog low temperature overpressure transients. The LTOP analysis involves a limiting mass input ease and an easty input ease. The lisdting mass faput case l assumes inadvertnut indeedon fkomt two hidi pressure saisty Westion pumps and three charging pumps with letdown isolated. The esary input case assunse a reactor coolam j pump start with a 30'P temperstare diferenos between the steam generator and the RCS. l LTOP proteados consists of the overpressure henigation System (OMS) and the PORVs l u discussed in PEAR 5ection 5.216. As or below 304T the OME fanations to open the PORVs when pressanser pressure increases above the selected setpoint. i The FORVs are required ibr LTOP protection in Mods 4 (with RCS cold lag temperature less than or equal to 304'F) and in hindes 5 and 6 (vessel head on with RC3 not vented through a 1.75 square inch vent) per Toshnical Specification 3.4.13. l

,djk,% [ $ .N' e h ab .5/14 JPM.PSL aDU4sess a { Rev. 0 5 Pase e of 7 l 3.0 PORY Bevand Desian Basis Punctions l ~ &a - nran h r%Han==A Ah=** Pm=% n.4w.io <...hilhy 2 j The uns of PORVs is ! adam in *=-t= f Operadng Proosduras (EOPs) and Otf. Normal Procedures (ONPs) for "once through cooling" as a cana-aaey action for RCS heat i removat and as one of several altermass' methods of pressure reduados. l 4.0 Analvais of POEPs Ability ta Mass Desian Basis Panatians ] Tranniant Prasgra Ralief 4 The unavailability of the PORVs does not adversely aSect the pressunser code safety vah.w. The code saisties remain capabis of sadsfylm their priatary Na@ of RCS crd:1 =s p'rotecdon with or whhour opersha PORVs. %s St. 1 ' Unit 1 PSAR m l only the pressedser cods safety valves for overpressure protection of the RCs. 1 Law Tamparaturn Ovar Prassure (LTOP) Protaenina During the period that the FORVs wars unavaBabis, LTOP pre"a= was required for i lhailed periods of tims dudag the foDowing three outages: 1) Fau 1994 reibeling outage,2) February 1995 presnudser code safety replasement outage and 3) Angest 1995 Hurricane Eda outags. Hess periods include alindeed amoest of dase (i.e., approuhantely 44 hours) when the unit was operated la a solid plant condgarados. Dudag this thne the unit did not

---

mi any L'1VP evens.

EstensiveI.. d tive measures are used to preclude LTOP transients. These includs sp da-proendures and administrative seassels to prevent mass and enargy input transiems, Pi-hi== th6 thne spent in pressuriser water solid operation, and==ia'aiaia-latdown av-a^my whGe solid. When LTOP protection is required, the followmg controla are implemented (Ref 8);

1) SIAS is blocked and bypassed.

2) One HPSI pump is doenergise( sad its dird ge flowpath blocked.

3) The retuining HPSI pump is caution tagged with its control switch in stop.

1

4) na RCP breakers and PZR beater breakers are racked out and tagged.

These administrative controls provide a high degree of assuranos that LTOP scenarios are prevented. In addition to the adannistrative astrols, the sode saisties win provide overpressure protection to prevent reasier vessel $spure far t etares above 200'P and the shutdown cooling relief vs.'ves will provkle overpressure protection for transients. dew 200'F as listed in the following table (Transient seenarios derived from Referenes 9). 1 m .---e+v.

~. "A l* @ ss % 1 M Al W YE i$EI: '$.sna H f M *I$Isas E M 4 Eav. O i e Peas i et 7 1

i i.

Input Type Transions Applicable 3DC Eallef Mas Max Vessei I F;. Tsung Vahes hansions Pressere Range 'F AveusMe ? Poussage AlloseMe ! >l OPSIA) &SIA) Mass RCP Start s 140 YB5' C6005 15158 1 Mass RCP start m200 NO s25758 2750* Mass 2 H FSI & 3 270 304 NO s 2575" 27508 i, i Paines i Mass 1 EFEt & 3 236 270 No s25758 2750* Qurging Preigs i Mass 1 HFE! m220 No s 2575* 2750* j> yesp i Mass 1HFE 236 - 304 No s 2575* 27508 i Peep Mass 1 EPSI s140 YES' 6008 15158 Pusep ~;-- Enary 1 B C F start s 140 YE8' s 6008) 1515* wisk 30'F j AT Easra 1 R C P Start a200 NO s 25758 27508 i wish30T nT l Energ 1 R C P start s300 No s25758 27508 with 30'F i 4T ( i sai cowertuosesy asummed a to essied by me ende sesser redet espose mese pois seus ---- tre polen. (M A tsunew of idendown aseeng reset gefus espeehr IAessfunssa 1) and MPei pneup dass med W incesses thus me i eqisAhese presswo wondd ses esseed espeeseensmer eBS sets. lai tened en a esensass esswesse weasel pseenwe et 1 sis one, wie me age a 1199 taasennoin m. IW Assad en en esenend stowels weasel presswa at 2F5 peln, wem Wie RC5 3 300T (AmeWunene al. The shouteen eessag syseuse le leenmend dwene fW esel went pseendwas der tded penede of ene, wish ins elefedown 4:L 4.s pesar wenn unsesesente 1s1489, eus sneebewn anelvens arosews transient is lessene es the I ainseest heed of sie ens essedde W awie leppreusessely tapp add. p 1

~~.gM '95a ss as:4aPM PsL Pts are acacs b,g 06 GSPM VP-ST. LUCIE PLANT P6 ) JPM-pal 4ENJ4s4pp ner. o Pay 6 ef 7 i 1 500 Analvuls of PORY'a Ahms, ta Meat Bavagp help Rasis Fumetians 1 Ones nmnah Caelias j Ones through conting" is the last psoceded option ihr asaddishing core cooling when an othar proceduralised methods have failed. It beoomms a neressary osatingency andon only aAar ths ) nosesrumos of makiple slagts Adhaus whisk me bayend the design baals of the plant, h shoold j be stoognised that the compless loss of steam geassator heat removal capabdHty is an exuemety l unl5mly event and is the event which mguises;she um of "ance thsough "{. In such an accklant scenario, fhood with ths loss of steam generators and PORVs, other marhada (not necessauy proceduralised) wouki be employed to recover sesem generators (5Gs) and/or 3 l vent ths RC3 la ouder to endsfy RC8 heat removal and psussues osano1 safety functions. These non ppmHW ggthods would be dgWeisped la the teChEICSI support oeB8er of tbs Unit 1 i coenol roosa by the psoblem seestudon asam that would be assosidad in response to such an svent la aconsdanos whh emergency plan implemansing pseendues. '!he C.E. Owners Group i ) Funesional Easevery Oukletians suggest the use of any avallable plant componsas and design featuses no romanes 30 heat sanovel espaldlity and/or RC3 hast removal capsbuity. Methods suggested innlede ressoring vhnt madliaries, using shamass mesas to feed the sos (e.g., ese a waar pumps, condensens pumps, ses.), alsumem menss of dumping naam toe the sos, mesual opsation or aged samointy opsabes watves, shimme mens of dessessudaing/cooltas the RCS I to establish or lessunas IFst or LPSI flow Set 10). 1 Ahernasa Psamaan Raduatien CapabiHry i The PORVs us ideadfled in Bors and ONPs as only ons of sevent opdens including==my spray, main apay, annagheds dump valves, charging and 1sedown, which may be available for i RC5 pressere redooden. R abould be aseed that the PORVs me act credited in any maeWaar analysis. r 6.0 PSA Evd '-*" af o== n wm. am c= r - r.--- tenn na Probabilistic Sa$ sty Assesseses (pSA) int Unit 1 includes evalussion of the coincident i fhilure of the messor psognados symem and the diverse sama sysism to trip ths teacer. For thans combined inDunes, ths PSA esedlls the use of the PORVs for psesses midgados. In i addidon, the PSA also codia the nas et70RVs fbr "ones through cooling'. Thmefore, sinos credit is talsen ihr PORVs, their loss results in as taasense is the calculated core dannes Auguancy as discussed below. i The aftset on annual CDP due to unaveHabGity of the PORVs was estimated using the PSA l scoping model. Assuming the FORVs have basa unavallands for 9 insaths, there is an esthmated ammal CDF inssesse of a lheter of 2.5 above tbs baseline assual CDP. ADhough tbs CDP was alculated to immeans, it remains below the NRC andhty goal of 154/Yr (eminated modified CDP is 7.65 5/yt). 4 4 I

\\

• 4JG 22 '95 06839PM VP-5T. LUCIE PLRiT p.7 l

l* - u n 'ss etiaan est pr.s r.re rocx ,,,, g l' JPN-rsL4sw3.es4 s Esr. 0 i Pass 7et1 !t 7.0 Canenadam ll i I 'the signiflasmos of power operased relief valve (PORV) unav="*"*y on plant operation has ]} been ovalussed. 'ns ihnadens of 70RVs that wees not available did not have a sigalficant esset i i! os as plant opunden dudag ", alundown and das!ga basis assident condigans. The NRC !I satsy sont she seus dessags segusacy ismains udsSed asuming POBV unsveilaldhay in beyond i desigu basis sammedas. This eenchadoa ls not inunded a mishnise the imparunes of ths 70RVs ii but emphasimms abs ' "- ' ',i design of the plant and the pr===humi controis avauable to h sessly epsmes the P ant. l 8.0 h Ij The vestflessian at this evalunden was manaayHaw try swis the design bases of the system !i and asviewing Ibs sedueness ideadfled within this Bagineering F j: This evaluation was propedy clandflad as Saissy h L i l 9.0 Batatmens l i; 1. 8t Imols Astica Raquest (STAR) 1-950872 F 2. Root Cause Team Mano l 3. Psussadaur DED, say.0. j 4. EPSI Pump Curve. Desving 87743085, sov. O. 5. Deeming 87/O 2227, sov. 4. 6. Se, Laois Unit 1 Piss! Spiety Analysis Esport 7. St. Lusis Unit 1 Tushalsen 8pesiflandons 8. Et Imais Unit 1 Opsadng Psocedum No. 14030127, '1anctor Plant Cooldown - Hot i samadhy TO Cold Shuldswa * ' 9. PFL IAtter a USNBC tem II. Goldhers, IAIM08, dated December 5,1989 l 10.- Condmadan Engineadas Emergency Easpones Guidellass, PRO H14 1 10.0 Attaelunenes l 1. Eatief Valve Capaday Teldes 2. Idear hess Stephen A. Conant to N.N. Paduano desed August 16,1995 l 4 j f m m

m e h W M N i'Y @ N 8 M N " mer oss, as Attachastit I to.JPN Psd&f g5 Cli ^ l Pete 1 of 1 h d{h b D - 4 ( perastuselhNas% t,% wen me w w u,e.. w= m,j see new.s,Paes se) mens a waits set =letes .. 7 ..... g. g ; gg e e.m - m Ie i ae e e 's .J u ss. a w ,.e_ w= u-un, as me sie ter ass se vu ties we sees sees asse spy 698 54 85 IN EU 408 849 1989 IfW acte sees asse ages des the IN se MB etP 15 8 tte tage taas gase aka tem em esA 100 tes Ma af W 1988 Ifg goes guer goes esse Se and led 100 ftB est ma lhe im um peg og agg i 849 858 IN 888 mi al eH ttee lege esse peg egne gggg est pas le Me see aII Ist lies 958 toes sua eens pass SSD M S8s le8 888 85 W ' ten le# ser me o.ne.,.ipe set p g,s= s.J A in a m ,ne w inn im um e. p en pi# in m a m es im is see ne eso saa 6M nas sad p ty taf W IMS Iset es jy' ete Pla 85 sis at aus see tes teen este gone met GN FeA IN M ao eN WB las 450 m .em gg em S&l 188

1. t8 tag ass se taas test pas get asas

, esp 787 108 N1 888 as Me tant IEW OSP ser esas, mas and It see ass es age IW tese esar sees esas ese 3ma is $18 85 AN .eIf SW W 8804 M seat ess NJ 15 SW see W em Isas a ses We ases em Sta l# 940 IF af ele W EBs W WD egg am Pla IG 889 IN 84 909 taes M Ist 8000 ease pas see IM 'd W W set ID W We eles 43: a Pts par tse sps ses as iaW W W get seeg des pas Inf tse e ass sur as e tag , m og geet esas rep sa les set H8 W ens las I ma seat sem deep SdB NA ide W 50 58 edB IM Ge9 80s$ NBt 43 l I

1. 00 E.B les up are as og 433

• gnts 3333 gas age ree end te as W

ses tes ist st.s ses ses see Fue the tal m W me We M 9te ptr m als yes saa le sus see asp ese tar ets ases essp aus pee ett 48B MI the ett ens les asal pgp ges, esse as and 15 38 af ses em tes pees sus asas aus' see e68 IS S W 85 e88 W W IfW M 88N ens 4&P 15 W W est M M IIS We mi e ~ ass 868 let SH SEB teS 130 % del W EWI test est see las nas as age ese igu les gas M aWI se

== mm l 's'le ins as en e4 m in m a

== ies um me na is a si er uw = ism spe esa 88 Ist S es jeEB 888 me sees ese aw d ese ses la see at ses ings Im WB Isas ame sist est saJ se ese a egF stat ISO 9 48 Iggt MIS seN ese and let 38 45 tot W W W W get get ete IRA lM as des ess sans nas een We gIII sus ese et# tag as ses esa les tar m m em gas est eta tee ten af as IIIB 1818 We Mr asus aus egg 91A tG W eM GA8 IWW M WD M WD IIs ese end les as et es ten tens amt mas em ass i ese phP tes as ans ese taas less aos me act mee see me ass su ma ses asis nas ans see seer ese see saa tar saa su es me las amp ages asse aus ese es.s les ses de et iese tst seen set aree pass less eta le ass a W tw tai tag age su ser Ises esa se ses ses see .nses. tap seat une

• less t6d 18D AN 88 tel lite W

985 Ise taas ans apt ans e aus its e te sees toes gas ist aus ese as tw tap a seas tems ena we et de ese ites ins tsu asse iess WJ tes opp em ses ane test gas sees tWe WA laf 50 est ese tie test M m sees ses 18 8 sa ese ses lie eeds sees see saa int se es as Sims tant name asma pegggi geges esessess tsesh puseness sent, uma tusses af ese psussese,Ibe ildusses Dessses she ese esoneeve med see tank geasse et aseset aggety elhor age 14 lWtAW a Ib IBGpig stese musistne by sammunes tester 5,g feest in feysse 8,es est py een ceases: SIptse A esef AD.asgu 14 8p: gases AuS.Beges 5 & SL 71 es m e ss stee

'q;2pgg;9gfgac;g3g y j Attachment t to JPN-PSL. iWS099 Page 4 of 5 e ,l p p y ll I' g 6 [ !*g ! ! ii ! y 3 l s. si !*3 I p 1 I..l B 5 s a l' ! E ti i 1 I :i.i. i. i. Ilti i.

i. i a

a s-e s i _i

• l j ee!

( 4 E 4 I. E I. I. I ! i g B l s i e ! i'

t. !

l l .99 lli 1 1 ! ! ] id l g t r e r r t a x a g g g g g-g-l c a a e r I 1 A A I 4 I A n' 8 $ l h ,8 8 9 8 j { l1 lsi

• l !

o n = a e il 5 j E 8 I l y l go a g a s ll g a I i l ~I g i: N R 3 !g s '.g!l !- i i i 1 5

1 1

5 ! ! g 8 1 5 5 ! l 5 I] s i n ! l i, a ,1 gI i! l l i 5 l l lg t. l gl { i ll l g if .i 1 1 l i it i 11 liI i s 1 11 ji i et i lt 11 :it 11 li 't 1 1 11 1 Ill 11111101_ 1 1 l-

l 1 i f,tG JJ.'.E. 06:.9T1.vP-EL,QFF._ A./' h m.#o . auso a irme@ lee Correspondenes ) JPt M 31ob178 suppismanc 1 L -n { E to JPN Pst. 3tNJ 95-09s Page 5 of 5 8 To: Nary Padmano Des: Ahgun 16,1995 q I 1 l Pseur. Save Collesd W Nuclear DivisionCSI [ i Salgest: REACTOR VISEEL Df!'EGRITY. PSL 1 WITBotTr LTOF SOFPLEMENT 1 j This sappissasse CSIlaserJPN43195178 dead Angust 16,1995. Dis assessass le iammend so show the adens of an laothsanal ;:---- '-='= to 2500 pai and l 2750 put a 20tPF en the P5L 1 canciar vemeL The appmesh, vessel ;:7 ~ "' - and m ammaans memula ihe assas. i l } Fassers $4sess El Mesabrams Els l 27N pai 28.19 lut 76,10ImWaf" N nmWa* l son, i

sa w

. 3 w.e uw n la task sessa. El maatuaes < K1s whisk venidias that to applied needing is benew the level to amek taislasion. \\ I l JL J _ l starnasasser A ~ nmeew er - es: 1.T.Laks R.W. Wismand Ma>170 Sep.1 e

.:. : : :..: 6. s.

' 3 :'n 7 .5

'dlism. iK.e 3

.j. g. ?, l 1 DRAFT CONTAMINATION ASSESS 5 REPORT ST. LUCfE POWER P!.#ih UNIT 1 EMERGENC ENERATbR) // s DIESEL FUEL STORAGE / TANKS N i HUTCHINSON ISLAND, ORIDA R. FLORU)A POW RAlvt IIT COMPANY A IL NO. 568630677 s Prepared by: 1 Q f ATLANTA TESTING & FNCINEERING Lakeland, Florida June 21,1993 Job No. 5203P r. ., ~

r - = so::t u.s.:. a I I :.cn 15 :.ausn u0d3 h 2.7 HYDROGEOLOGY 2.7.1 Reninnal Hydrureoinav The regional hydrogeologic setting, as descnbed in a report titled " Ground Water Study for FPL, St. Lucze Plant * (1984) prepared by Technos. Inc., includes the unconfined surficial aquifer and the underlying Floridan aquifer system. De surficial aquifer occurs within the relatively clean quartz sands ~ f recent to Pleistocene age that make up the barrier island complex, and the Pleistocene Anastasia o Formation (Miller,1980). The Anastasia Formation consists of quartz sand with lenses of shell.- limestone or sandstone to a depth of approximately 150 feet. Low 'p ) ability clays and maris of the upper portion of the Miocene-aged Hawthorn Group make up t confining ~ unit underlying the surfcial aquifer. The thickness of the Hawthorn Group in t vicinity plant is estimated to be approximately 450 to 650 feet (Technos.1984). Hutchinson Island is a barrier island surrounded brnatural saltw er bodies including the Atlantic Ocean to the. cast, Big Mud Creek to the north, Herm\\ \\/ to south, and the Indian River to the west. According to Technos (1984), the island ve water lens in the surficial aquifer which is encarly absent.during dry. periods of nd water from the surficial aquifer is. generally e e considered to be naturally brackish and TKspurce of potable water. N 2.7.2 Site-Sgeeific Hydro colorv' Based on the subsurface conditions identified in soil boring B-2. installed at the location shown on Plate 3, the surficial aquifer at the site was found to be at least 40 feet thick. 'Ihe unsaturated zone above the water table is comprised of imported fill consisting of pale yellowish brown sand. with limestone fragments extending to approximately 17 feet bgs. Underlying the fill material to a depth of approximately 40 feet bgs is a light olive-gray, medium to fine-grained quartz sand with little silt and shell fragments. A basal confining unit was not identified during the installation of soil boring B-2. 3 i 1 =.-- - -

i 3 .t

:s 3

_c.. 21 :m i;. 3nsa uwa <.1 g 2.7.3 Ground Water Pow Dir-etion i The lateral component of the ground water flow direction in the upper portion of the surfic:al aquife at the sitr> vas identified using smund water elevation data collected from monitor wells MW-2, MW-3, MW-5, MW 6, MW-9, MW.11 and MW.13 through MW 17. The locations of these wells are shown on Plate 4 and well canstruction details are provided in Section 2.5 of this CAR. The elevation of a i measuring point was established at the top of each well by a professional land surveyor licensed in the \\ j State of Florida and is included on the well completion logs in Appendix B. All c!cvation data reference l the Natinal Geodetic Vertical Datum (NGVD) of 1929. Ground water elevation data collected from the monitor wells du th ntamination a.ssessment are listed in Table 2. Plates 6 and 7 are ground water elevatio ntour n hich were prepared from ground water elevation data col;ected on December 1,1972 d bruary 1,1993, respectively. Based on an evaluation o.f the ground water elevation contour map, direction of ground water flow in the vicinity of the Unit 'l emergency generator diescPfuel stora ks is toward the west. During typical plant operations, when both units are "on-line*, el m the intake canal is depressed and the I e r water level in the discharge canal is eley r gpumped from the intake canal eastward through wa l the plant and into the discharge can isag thhter level in the discharge canal and lowering water level in the intake canal a graden (WThehrficial aquifer is induced toward the west. toward the l Intake canal Both canals te e uvedy to the Atlantic Ocean, and are subject to equal tidal fluctuation. A staff gage tr not e faced in the discharge canal for plant security reasons. I 2 7.4 Aotifer Performance Eval ation I 'Ihe transmissivity of the upper portion of the surficial aquifer was calculated from data collected during specific capacuy tests conducted in wells MW-2, MW-11, and MW 14 on April 2.1993. Tne tests were conducted by pumping water from the wells at a constant, measured discharge rate and measuring the drawdown with time. A transmissivity value was then calculated from the resultant data using the ~ following equation (Walton,1970): I f2., - T s 264 log -_T.L - 65.5 l 1.37r S 9

3 e t ;-.;,5 5,;-. ;.. 3I m7 - ri. s u s n. u c.s s,- ! a 1 Where: i i i O = - Discharge rate - gallons per minute (gpm) Drawdown - feet s = T Transmissivity - gallons per day per foot (gpd/ft) = t = - Length of test days Effective well radius - feet r ne specific yield used to calculate the transmissivity was assumed :o be approximately equal'to the - effective porosity of the upper portion of the surficial aquifer. The effective porcsity was estimated to_ be approximately 0.20 based on reported values for similar ma described in Table 5.2 in - Groundwater and Wells (Driscoll.1986). De transmissivity of th ers(ortion of the surficial aquifer, I as measured in wells MW 2, MW-11 and MW 14 werge -a late and are shown below. The / \\, > > transmissivity value calculated from the specific ca cipf t ts were t:' sed to calculate hydraulic ( / conductivity for the upper portion of the surficial aqu' ,u 'the following equation. K= T 7.48L l 0 Where: V K Hydraulic conduttiv;ity Kfees/ day . /. m - N) \\ T Transmisst Saturated \\eenjon/It L h ft (for partially penetrating wells) The value L is the aquifer thickness which, for partially penetradng weds, is taken to be the saturated o I screen length. De calculated transmissivity and hydraulic conduedvity values for these three monitor wells are shown below. A graphical representation of the aquifer test data and input parameters used to calculate the transmissivity of the surficial aquifer are included in Appendix E. .I F 4 s 10 i i 4

7

;,5 g.

3 '.. 70 ' .? .~d i 15 0 i-K'd d A ) 4 ~ Traamuumry k Hycnuuc Conducovuy (Jpd/foop (fear / day) l M W-1' k 48 0J1 M W-11 l h. 327 5.9 1 M W-t4 I f ' 77 J 37 Avenge 1 950 l i 14 Y 2.7.5 Ground Water Row Rate A As discussed in Section 2.7.3 of this CAR, two ground water elevation egntour ma I the upper portion of the surficial aquifer were prepared from hd water elevation data collected during the assessment. N As shown on Plates 6 and 7, the dfr^ ion of groun, water Dow in { portion of the surficial aquifer is toward the west in th vietnjsy's the aboveground die tanks. We hydraulic gradient, as measured from the g]nd water elevation-c He averag& approximately 0.0021 feet / foot. N r 'c co ctivity calculated from the aquifer performance tests is 14 feet / day. The measured dient and average riydraulic conductivity I were used in the.following equation t ted t te of ground water flow: N h v = Ki/n i Where: V Ground water Dow velocity feet / day K Hydraulic conductivity - feet / day = Nydraulic gradient feet / foot l' a q n porosity - dimensionless = The effective porosity used to calculate the ground water dow velocity was estima 0.20 based on reported values for sinular soil types described in literature. Table 5.2 in Gro Wells (Driscoll.1986) provides a range of porosity values for rock and unconsolidated d .l 11 t i

31:.cn 'is :idus.n u0d3, 1 ' ::

I

II :s 5v c

i . of ground water flow in the upper portion of the surfical aquifer is calculated to be approximately 0.15 feet / day. 2.8 SOfL _OUALITY ' ASSFssMENT The horizontal and vertical extent'of fuel affected soil was identified by! collecting soil samples from a eleven soil boriny (B-3 through B-13) installed at the locations shown on Plate 7. Sou samples were collected from each boring using a split spoon sampler as discussed 'm Section 2.4 of this CAR at the intervals shown on Table 2. The sou samples collected from the borings were screened for the presence - of volatile organic vapors using an OVA equipped with a flame ionizati tector (FID). The screening was conducted in general accordance with the method described

• S J, n 17-770.200(2), F.A.C. The results of the screenin5 are included in Table 2.

m collected from the eleven soH borings. Volatile organic vapors were detected in 19 of the 30 soil nged from 0 parts per million (ppm) He concentration of volatile organic vapors in t,htNe sam e from 14 to 16 feet bgs in boring B 4. De in eleven soil samples to 750 ppm in the sou sam s mil. sample collected from 14 to 16 fe in B-4, B.S. B 7, and B-9 and the soil sample ecollected from 10 to 12 feet bgs in b B ti the characteristics of ~~mively contaminated son". For soil affected by a releas idfel Section 17 770.200(2), F.A.C. defines " excessively contammated soG" as soil urb ith petroleum product, or soG which causes a reading of 50 ppm or higher when e d us an OVA equipped with an FID. The results of the OVA screening ere used to evaluate the honzontal and vertical extent of fuel-affected and " excessively contaminated

• soit ne approximate horizontal extent of fuel.affected and ' excessively contaminated" soa in the depth interval from 14 to 16 feet bgs is shown on Plate 8. The vertical extent of fuel affected soil extends from approximately 12 feet bgs :o the top of the prevading water table, approximately 15 feet bgs at the time of the investigation.

i. -l 9 ~12 \\ J

e 2

.5

.p:. _. 3 t :.n, .3 ..e u s n u.:.a e s ) TABLE 2-FLUID LEVEL ELEVNTION DATA UNIT 1 EMERGENCY GENERATOR DESEL FUEL STORAGE TebNXS ST, LUCIE PLAhT FOR FLORIDA POWER & LIGHT COMPANY Welt. 2 Top of Casing. Depth to D W to. Givuod Water Product. Idendricatloa Elevation Product Water , Elevation nickmans (feat NGVD) - (feat (feet) (feet NGVD) (fed) February 18. 1973 l MW1 16.94 13.95 15.37 f 1.57 1.42 MW-2 15.91 12.33 3.08 I O f MW3 15.51 13.99 1.52 0 MW-4 16.18 { 13.09 14.99 1.19 l 1.90 MW5 16.45 l 13.72 I 2.73 h 0 { 2.67 { 0 MW6 16.49 13 82 l MW7 16.49 13.44 15.15 1.34 1.71 MW8 1635 13A3 0.95 2.40 0.52 MW9 16.77 14.11 236 0 MW-10 17.11 13.65 l 18.05 -0.94 4 40 M W 11 16.79 13.90 2.89 O MW 12 16A8 { 13.52 1723 0 40 3.76 M W 13 16.74 13.95 l 231 0 l MW 14 16.01 13.15 236 0 16.30' 13.31 2.99 0 f M W 15 MW 16 16.79 13.97 [ 232 0 l M W 17 ~ 16.22 0.23 h 2.99 l 0 MW 18D h f f I l l NY1 Elevanoru reference to Nanonal Geodetic

• Vertical Dscum (NGVD) of 1929 NY1 - Not Yet trutalled i

! NM - Not Measured ( * * - Indientes Free Product Not Detecreo

~' I i .d ri:?I c6 20 to 3 :.cn is :.duso nods N ,,F-I r ~- I 1 0 h =- = - ~ C N \\ I 4h=== - N. N i 7.,.,s W O ) l

• s..

omest amt ru.ns 2' r' --T' ' cr + L. l [ 'gp ] d. /1., rt, \\ E \\ ] / \\ x m=

== + i 000 / I 1 -l i = = = =. _, ,7_ naamsnm inesar omo=aus cuam. - - = = _ ^ M o iae rr. I FLORIDA POWER & UGHT COMPANY 5/13/93 5203 P 5 h Atlanta Testing & Engineering APPROXIMATE EXTENT OF coa==nenes w me rtn e FREE PRODUCT { M.r+en G <mme. c.<enne n. sr. wen -. w

.. !.-i I:: z.E. 5 :. _.. 3 t :.n 1 a :..susn u:.33 .s M TABLE 2 FLUID LEVEL ELEVATION DATA UNIT l' EMERGENCY GENERATOR DIESEL FUEL STORAGE TANKS ST. LUCIE PLANT FOR FLORIDA POWER & LIGHT COMPANY b Wdt. T 1 op of Casing.,- Depth to Depth to Groved Watee Pmdect. . !dendricatiee- " Ele,esiemr /, -Product Waur l Elevados DA=

• J (feat. NGVD) -

(fee) (reco (fece NGVD) (feet) - April 2.1993 j MW1 16.94 14.12. 1833 139 l 421 MW2 15.91 13.4 7 2.44 0 j MW3 15.51 14.42 1.09 0 M W-4 16.18 13.54 15.33 0 85 1.79 MW-5 16.45 14.25 2.20 0 MW6 16.49 Not A~-41e MW7 16.49 14.01 l 15.54 0.95 1.53 MW-8 1635 13.88 14.40 1.95 0.52 MW9 16.97 f 14.76 2.21 0 M W 10 17.11 14.10 18.70 -1.59 4.60 MW-11 16.79 i 14.54 l 2.25 l 0 l MW-12 16.88 13.11 18.11 1.23 4 5.00 M W 13 16,76 14.45 2J1 l 0 MW-14 16.01 f 13.62 239 f 0 i MW 15 16.30 13.7 7 2 53 ( 0 M W 16 16.79 14.52 2.27 l 0 i MW-17 16.22 13.6A 2.54 l 0 1 M W 180 ) NYI Elevanoru re(crence to National Geooene Verneal Datum (NOVD) of 1929 NY1 - Not Yet Installed NM - Not Measured = Indicates Free Produa Not Detected I Page 6 of 8 1

l ?I'e-- r1! c s ?.:. a.:. 3I:.cn .s :.dusn ui:.a s r

• i

,~ ,,2.,~ / / .+ y / ,e L / l+ x I /l +- ) W war am e / 3 N ~ [ po 1 ~ \\ + TT.' Q ones man, r a N tant = i ._.._ _ _. J .-{. i c ,.j s m C J 1 "W*-co*" ~ matname i unwr ma m .= e \\ TA + "*"' "."*,3 74' ""'"c"*"

• w amou o enua comous a aumnose g

p euwnom. =,we c., to =evo on inee. i FLORIDA POWER & UGHT COMPANY

• • ],, ' " " -

3 C-Atlanta Testing & Engineering GROUND WAT$R ELEVATION ~ Comenmaave 6a me earm CONTOUR MAP % *Gewee.cuena. OCTOBER 15.1992 av.wc= e _ m.wr I

~. .= -. ~, -. . - ~. -~ j ~ CI'd 31*Ii ( (. si* 1?D1 ,, 3 - cil5h l 1/,*.d d r I l r g N 2.0 -N ^ g / h \\ 3.sW t T j N d-3.4 # 4 amp-t J.Os j y re 2.84 4848 - unstr sees e y 2.a. c ) n, t, 1 00 id WP= 1 Sg I p 1 98 notar-e 3 8 j hous-to 2.81 9 3 0 88 usef? 8eet3 1

1. ttr a

LAGE ped-if 4 6eONtTN Location tpCAftose s % Gaoupe0 telmt COefron.se & alsneceoes /

amou=o miram atow onamenos.

• MWS; OATA COLLLECTED tite /St.

sLawno serasiamicen to N. rr. avo or itse. = io FLORIDA POWER & LIGHT COMPANY 5/13/93 5203 p 7 O Atlanta Testing & Erigineerin9 GROUNO WATER ELEVATION CONTOUR MAP conomenenes isi tvie oestn see FEBRUARY 18.1993 morsas. Georgie. Carodne n. 4

r---r .g A = 22m.. _ - _2a pum Nl l a F N 6 Qy N K s O N O \\'

• - A

\\s t - - o, m -. = crue wn% x y. _., .7 / 'N. \\ + -3 FP - = - cr.. /go e rum. rA. s l o t,-r =. [ .6 D,.cv 3 Mo km - +"v ' Gamamptose re m [ &] '"": 2 "' Q,.g+r,, T 8 ooo ] fuerT l l aesm wue t 7 $ isoserTUse suGLL LOCAtlost 0 seestrirecAnose a totao vcxArn.s OsteAMs0 AfuOenanC CCaeCaNrmarsoes CBS O Wsued CAaned. IM hasQf40emaase PuM UTER oru: r, esspecArRS Puuub4AeCE 088 SCALS P una PutocuCf tw tueLA 6 o tog PT oaru m seo. " "C-FLORIDA POWER & UGHT COMPANY sfis/es 520s P 9 APPROXIMATE EXTENT OF Q Atlanta Testing & Engineerin9 FUEL - AFFECTED T ca. ustones in me eren ee** GROUND WATER - g . -. ~ 6....

W i i i i e 5 4 l kA i l I A l' O O Z 2 l u h l l ) <h o r a na c t-Od 2 2, y e l l M Y O l 6 9 k c 2 2 f .A w t, .j m e A. 3 i 4 I i 4 n a o ? o l t r 2 I I c, ~ m i h ff O d 0 .L 7,,' c 3 9 2 2 2 e "', y ~ ( s ._+- 4 h 3,' d "lr' k I* T Q d 1 ? Y. p } J. d 0 l N w

• ., J 4

m_ I m E. f% 0 % u n s 's J. rt* 1 g a ic ,[ j o.

g. t =i g3 e

e L .: 1a o m r H w t~ w e 2 = d 2 2 0 "'. C f ' 2 j s h . ~. O'd "G '2 aj w s 4a e i * =O O U e ~O 'O 6 g e O O e .&o, = w F w s 9 -e oy r===7 we 5 -G c FPO!! U$tiP' I' LO.' I E O ' O ?: 93 ;2: 16 c.I5 TOTAL P.15 .}}