L-78-225, Notifies of Steps Taken to Assure That Plant Operation Will Not Be Restricted by Sys Performance.Util Will Raise Discharge Canal Dikes & Construct New Spillway.No Unreviewed Safety Question.No Adverse Environ Impact Involved
| ML17266A130 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 07/03/1978 |
| From: | Robert E. Uhrig FLORIDA POWER & LIGHT CO. |
| To: | Case E Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17266A128 | List: |
| References | |
| L-78-225, NUDOCS 8001150512 | |
| Download: ML17266A130 (22) | |
Text
P. 0 OX 013100, MIAMI, FL 33101
~pe I/h FLORIDAPOWER S. LIGHTCOMPANY July 3, 1978 L-78-225
- a. 7-S L-/
Nr.
Edson G. Case, Acting Director Office oF Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, 0.
C.
20555
Dear t!r. Case:
Re:
St. Lucie Plant Circulating Mater System Docket Nos.
50-335 and 50-389 tIy letter to you of February 13, 1978 (L-78-51), summarized the operating history of the St. Lucie Plant Circulating Mater System and indicated that F'lorida Power 8 Light Company was reviewing a number of alternatives to assure thai plant operation would not be restricted by performance of ihe system.
FPL has determined that raising of the discharge canal dikes and.
construction of a new spillway is desirable since it would:
- 1) provide additional capability to accommodate marine fouling of the'discharge line and 2) all,ow FPL to take advantage of anticipated increases in plant efficiency following replacement of Unit 1 s existing condenser tubes with titanium tubes.
FPL is proceeding with this dike work and exp cts to have it compleied before'the end of the year..
The plans for raising the dikes presently call for an increase in the dike elevation from +14'~iean Low Mater
()'ILM) to +18'LM.
The elevation of the spillway would be increased from +12'ILM to +15.5'LM.
There will be no infringement of the mangroves located along the dikes, since the slope of of the dikes will be increased so as to remain within the existing cleared area.
The work does not involve any deviation from the principal architec-turalI and engineering criteria of the units.
The proposed vork has been reviewed by both the St. Lucie Plant Facility Review Group pursuant to 10 CFR 50.=9, and the Company Environmental Review Group.
They have
, determined that it does not involve an unreviewed safety question and that
.it will have no adverse environmental impacts.
8001150 5/ig.
PEOPI E SERVING PEOPLE
Hr. Edson G.
Case Page Two 3,
1978 L-78-225.
FPL is continuing to examine alternatives to accommodate or minimize the impact of marine fouling on the operation of St. Lucie Unit Ho.
1 and will continue to I;eep you advised with respect to this matt r.
Very truly yours, Robert E. Uhrig Vice President REU:LLL:sl Lic
'Ast NGi Nuc L Mgr pic g g~
<<vr cc:
Nr. James P. O'Peilly, Region II iMartin H. Hodder, Esquire
'arold F. Reis, Esquire
July 6, 1979 Nr. John EIall, Chief South Permits Section Pegulatory Branch Department of the Army Corps of Engineers Post Office Box 4970 Jacksonv3.llew Florida 32201 Received DER AUG 8
19)9 P. P.s
~ ~~ 4 RE Proposed Ocean Discharge Pipeline St. Lucie Plant Unit No.
2 To Atlantic Ocean EIutchinson Xsland, St.
Lucie
.Coun"
Dear Hr. EIall:
Enclosed please find PPL '
application for a dredge and fil.1 permit, relative to the construction of the discharge pipeline for Unit No.
2 of the St..Lucie Power Plant:
The existing intake and discharge pipelines for St.- Lucio Unit No.
1 frere in'stall'ed under Corps of Engineers Permit No.
72C-OOO..
Construction is scheduled to begin late this year, so anytning that tre can do to assist in issuance'f the public notice a
soon as possible ~rill be very much appreciated.
Please call me at 305/552-3562 with any questions you may. have.
Sincerely,
,/ i~..c'.-r '> '
+ Judy B. Barnett Environmental Coordinator JBB/kb
Enclosure:
Joint Application and Supplemental Sheets Drawing Ho. 2998-A-480-1, Sneets 1-5 Drauino Ho.
SK-2998-CH-514 bc' J.
D r.r aoJwrg Norman Coll G.
E. Cro~:rell B. Derrickson B. J.
Escue CD S.
Kent O.
P.
Pearso'n
(:r/o enclosure) h.
Ei. Rogers, Jr V,.
S T.:cke:
(;r/o enclosure) i~lario Villar
0
JOINT APPLICATIO>V DEr ARTi'/i NT OF THE AF(HYI'FLORIDADEPARTMENT OF ENV]P>O>Vf'>llEiJTAL.REGULATIO 3 rural ACTIVITIESIN Vr'ATERS OF THE STATE OF FLORIDA I>efer to li.s'.ruction Painpf>I t for explanation of numbered items and attachm nts requirM.
Application numb r (Tn be a-signed) 4.."lane, ader ss and zip cod of applicant
. tl. J. Barro:I, Jr.
Sr. En'.ronmenta1> Coordinator Florida Po:ver 5 Light Company P. 0.
Box 529100
?Iiami, Florida 33152 2.
Date 05 Day 07 79 f.'o.
Yr.
3.
For ofli"ialus. only i
305/552 3562 G.
>Mama. addr s".. zip cod and t'itic of applicant's autlforizcd ar ent for p rnit application coordination
, Judy B. Barnett Environmental Coordinator FlOrida'Osrer 6 Light COmpany
~ P. 0.
Box 529100 FIiami, Florida 33152
, ~
305/552-3562
>'rlaterial:
CY CY CY C'>
Viator>~< of Mr>dvva>> Ol Vl.>>savarin of LawJewry ol 0 fl VI Or f 'l fl %V O,ff.ty or I.kflyI O.l.f,'VI.Or Iil.ff.VI.
O.ft.'e'I. or.i1.H.VI.
vi Ov> 4 G.
Describe th prcnosed activity, its purpos and inien" d us, inc!udino a description of the type o stcl ctufes ii "n; tn be eri.ctad on (ills, cr p:pa or float.supoorlad pla forms. and the typ, composi!ion and quantip of materi-.ls to be
,," discharge" dordumpedand'me'an ofconveyanM n ocean discharge pipeline ard cana h
extension to convey cooling t"ater into the Atlantic Ocean from the St. Lucie Poorer Plant is proposed.
The 3350 ft pipeline is 3.6 ft.'inside diam ter, c:<-
tends 3050 it offshore at:d is buried beneath t)te dunes and ocean botLom.
Titc end of the pipeline is a 1400 ft. multiport diffuser.
Dr..dged snil trill be sands, silt and clay.
Backfill trill b dredged sands. 'h can:.1 extension projects about 200 ft.'outh gf the existing canal See sue~let.annal informaLi
~ Dred~~d/cxcavar d FiIled,rV posi; d Volune of on
~7.
Propo" ed use Priva!e f ]
Public f 3
Cornnerci I f<]
Other f ] (Fxplainin rcn>arcs) 8.
Iilame and add. ess includini zip code o'. adjoining prop rv ovners sfhosa prop ny also ad,oins tn: vratervny.
)>orth Boundary:
Barnett Ilinston, 720 Gilmore St., Jacksonville, F3a.
3220rr South Boundary:
John R. !layer s Eliza¹th kl. Jo)ms(.'onr P..p.. Box 63.7 Jensen
- Peach, Fla.
activity exists or vrlllo cur I'r27 21'
- t. Lucie 0.
Location vrh re propcud Str et aoilrcss I /A NSO 1>I'
- c. Florid'a (II knovrn) i'>1E nr e.
Ft s>LCl Ct.
State County In Citiyor Tcvrn I'Ieac Clay cr Tovrri IO.
ivame o( vratervr~rr at 'loca;ion of the ac;ivity S'siJ FO?>'} n83
.21 j'.l1 17 ar tic P
0
~
I Ih
11.
Date activity is proposed to commence
~
Date activity is expected to b'omp!?ted cether 1,
1979 D ce~><'r 31, 1981 2.
Is any portion o. th?. activity fcr which authorization is sou<ht nosv comp!et?
Ycs [
)
llo [yj Ifans.v r is "Yes" give reasons in:he remarks section. Month and year th activity was comp!. t.d Indicate the existing work on the dr wings.
Ident>fication No.
Date of Application Date of Approval List all approvals or c. rti.ications recjuired by other Federal interstste. st" tc cr local zgen;ies for..ny struc!Ores, con-struction, discharges, deposits or other activities des rib' in this pp!ication, inc!uding whether the pro,ect is a De-velopment of Regional impact.
Issuing Agency Type of Approval U~'4RC Fla.
DER Fla. DFR'onst.
Permit Do').et 50-389 Site Certification V>o. PA-74-02 Easetn nt
Ão 25674 (To Be Revised)
I!ay 2, 1977 June 10,
~
197'ec.
16, 197.=
Rev. Pending Flas any ag?ncy denied approval for the activity dhscribzd herein or lor any activity dir ctly ra!a?ed to t< e acti/ity de-scribed herein?
Yes [ )
No [N (If"Yes" explain in remarks) 15.
Remarks (s
Instructicn Pamphlet for additional in'ormation rcquirecf for certain activities)
See supplemental sheets entitled "Item 15, Remarks".
Oa'.
'FF:
Attach Ch?cks/,'alon y Orders on fro>>;
I'ayable to Departm=nt o'. Environmental Re<<ula;io;l S200 S>zh(lard form pro!zcts S20 Short forms and Chap:er 403 pro.'?cts only 1S.
Applicaticn is her?by o>ade for a permit or permits to autho. ize the activities descfibed here!n. I agr 'e to'pfovid<. any additional information/data that fnay tla necessary to provid. reasonable assurance or evidence to shovi that the pro-posed proleCt will ccmp'Iy with the applicabl4 State ><'/atcr Quality Standards or other environal otal prefect!on stan-dards both durir:g construction and after the project is coolp!eted. I also agree to pro;idc entry to th 'ro)?ct sj:c or inspectors from the environncntal protection zo4naies fcr the pu.'pose cf making prc!imin >y analyses of lb. site aod monitoring permitted works, if permit is granted.
I certify that I z>n fao>iliar viith tj>? inforalation cont if: d in this application, and that to the bast o'f my knov>!4dce znd b4lief suc'h infor>nation is tru4, CofnP!4te, and accurate.
I fur-ther certify that I possess th" au!ho>ity to und'r take the proposed activities.
Plod]:
P~~~ier 8 Lightgowpany By s
/?-
<~
D
~
July 5, 1979
~ Sigoatur? of App?cant
- 11. J. Barrow, Jr,, Sr.
Env. Coordinator lG U.S.C. Section 1001 provides that: Vfhoev?r, in any manner viithin the jurisdiction o! any c!?p r to>. nt o. agan-y o'th'>l>t d Sta
- kncviiflgly anti vvilllu!lyfalsifies, concea,'s, or covers up by any tr>ck, schcm:, or d?vice a mat.rial faCt Cf m. k S
~ >y falSe. fiCt>t>OJ O ffautllerlt Sta e,ne'l S Of fepfe ntat>O.
S O. n'lakes O
us4S
<~>'>y fall4 "'f>t<:>g documerlt kncwing same to contain any false. fictitious or fraudul?ot staten>cot o. entry, s>>ajl b
!ines
. 0>>>ore than SIO,Ig00 cr imprison. d not nlore than five years, or both.
The applicaticn must be signed by the person who desires to unde. tnke the p.oposcd activity: hosv v?', t"e Jpph d by a duly autho>ized
. ent if ccofnpanied by a s
~ttm?nt by this f>C a>>d ag>c4ing to furn;sh upon rec,Jest. Supplem?ntal information io support o'he application.
~
~
I FLORIDA PO':lER & LIGHT COi~IPAi~IY ST LUCXE PLAIx'T JOXifT APPLIC.ETIO'J DEPART~K~iiT OF TalE AR~IY/FLORIDA DEPARTl~~YT OF E!IVXRO~J!KYTALREGULATIO~I FOR ACTXVXTXES Ii'I bATERS OF T!E'TATE OF FLORI.DA XTE~!I 6 - Volume of ~faterial:
The table belo!~ has beer prepared to delineate t'e volumes of dredge and fill material estimated for this project.
The project has been divided into t!~o parts: pipeline 'construction and canal extension.
The pipeline construction has been further subd vided into pipeline construction using a sheeted
- trench, and pipeline construction using a combination 'of sheeted trencli and open ex cavation.
Hhich of these two methods is to be used is unkno'~n at this time because the installation. contractor has not been selecte'd.
VOLUiK OF K<.TERZAL Xtem DREDGED/EXCAVATED FILLED/DEPOSITED Ilat chard of MIIl Landward of MI'4
%la tel.Pard of NI!!1 Land(Pard of !II61 Pipe'ne Cons t.
(Sheeted Trench
~!Iethod) 76,200cy 7,500cy i;6,900cy 5, 150cy Pipeline Cons t, (1000 Ft.
Sheeted
- Trench, 2000 Ft.
Open
'rench, 5:1 slope)
Canal Extension 330;000cy 7,500cy 106,000cy 301,000c 5,150cy 47,000cy, R2 cy - cubic yard R2 SUPPLFiKYTAL SH" ET 1
Rl 4/30/79 I:2 7/2/79
~
I' P
Page 1/3 FLORIDA PO':lER 6
i.IG'.IT CO:.!P,",tlY ST LUCXE Pi kXT JOX~!tT APPl,lCATX03 DEPARTMENT 0 TfK AR!IY/FLORIDA DE ARTlZYT O.
Ea~VXRO:i"K'iTAL lZGULATIO.'t FOR ACXTXl,'XTXES IH PATEP.S OF TP~ STATE OF FJ.O'XDA XTEtt 15 - Remarlcs:
The proposed pipeline and canal extension is part of the plant cooling ~rater system.
This system consists of subaqueous ocean intake and discharge pipe-lines Qi;tending into the ocean, canals on land connecting t:he ocean pipelines
,to the plant, and equipm nt and conduits in.the plant area.
Ha d'or po:.tions of t:his system vere constructecl!jith the first uni.t: (St Lucie 1) nnd have been in op rati on for about 3 years.
The proposed disch rge pip line is for L'he second unit (St Lucie 2)-.
Construction of St L cie 2 is authorised by a Const:ruction Permit dated ilay 2, 1977 issued by the Nuclear Regulatory Commission
('iRC).
Alternatives to the pipeline, such 'as cooling tow rs-and cooling po..ds!vere evaluated in Lhe Environmental Report submitted to and revicved
~y the i'.RC in the Final Environment State!cent Docket 50-389 dated Yiay 197'.
The St:at:c oE Flo"ida Site Suitability Certificate
-,was issued on June 10, l975.
The plan of development for thc-. sit:c i found in the=En'vixonmental Pcport.
The site fox t:he SL Lucie liuclear Pot>ex. Plant consists 'of appro:cimately 1L'32 acres on Hutchinson Island in St. Lucie Co nty about: half way betwe n th, ciL'ics of Fort Pierce and Stuax't on the East Coast of Florida.
The SL Lucia pla!!L. is sit:ed ne..r the center of a long, narrow island..
To the cast is the At:lantic Oceat!.
To the!rest the i.slancl i.s separated fxom the mainland by Lhe Xnclinn Ri.ver The site i.'tself is generally flat.
Huch of it consists of swamp nd, outsic!
~ 'to cont:rol are~
the land is covered z;"ith a dense vegetation char-acteri.stic of Florida coastal mangrove swamps.
At Lhe ocea!! shox'e t:.:.
1 nc.
'rises slightly in a dune or ridge to approximately 15 feeL above mean low water.
Of the 1132 acres owned by Florida Power and Light Company, appro".iau.tely 380 acres is occupied or modified by the plane (Units 1
6; 2} and the plant facil.-
ties.
The effc"ts of the "onstruction of t:he pipeline and t'ne;rater di.s"har"ed from t:he plan" int:o the Atlantic opere evaluated i.n the same documents outlineu above.
These documents state that the waters of the state!vill not bc degr ded by t:he proposed. activity'.
Specific provisions clesigned to minimi"e the potentially adverse environme!!t:al impact c"used by constxuction are:
a} construct:ion of ter!poraxy beach dune:shen cutting through the natural c>uncs, b) use of sncet piling and/ox silt screens around excavation -:nrk to limit: turbidity to less than 50 Jaclcson Units, and c) the, disposal of spoils in approved onshore posal are. s.
t Con txuction methods to bc used fox this project have not been finali.-ec-be" SUPPLH~~Ki~iTAL SOCKET 2
I t
Il
~
~
Page 2/3 cau.,e the installing contr;.ctor h..s not b:
.1 selected.
I?o:]ever, the folio'~ing descxipLion Qncompas es tvo alternative
...:". hods, of consLruction anticip te<<1
,,fox, thi.s wor?<<.
'1?aterial vill bc dred~ed from the Atla..tic 0"'ean eith r partially or wholly from within a sheetpile trench by a cx ne.
Tne sheeLpile trench metho.! vill be used for that poxtion of. the pipeline extendin~ from the be ch to a point about 1000 ft. offshore.
From this point for. the ne1<<t 2000 ft. to the end of the pipeline, the pipeline may b constructed within an open trench or a sheet-
. pile trench.
The open trench. will be constructed with either a, "ran or hy-dxaulic dredge.
The pipe trench vill be Q:<cavated fxom in situ soils.
Material removed from vitnin the sheetpile wi3.1 be use<<1 to b c~:fill OL'her poxt'ons of: the pipeline,
'r will be stoc':piled temporarily in the o"Qan adjacent to th trench, or.~ill be disposed of in approved on hore spoil areas.
The ground profile along Lh" pip line will be restored to it original contour after con Lruction.
Con-struction'Q<<?uipment and materials will be brought to and re".v)ved fzom t!.e site via true?
tran port oz via bazge.
Barges may be off loadec at an existing barge s3.ip 3.ocated at tne site on an appenda~'Q of the.1ndian. Fiver, o" they may be moved directly to the constr'uction site (the "'Atlantic Oce,".'n),
The canal cc..tension on land, behind the dune line, vi.ll i11vclvc clearing
..bout 3 acxcs of n: ngrove vamp. 'he concrete headwall structure ~rill xe<<!uire de-Uaterxng and excavation.
AfLer comp3eting th stra"..tore, thc onland portion f
of the" pipeline vill b" constru" ted folio;red by the canal excavation an<<1
<< ike cons true tion Hater from the dcvatcring operation villbe discharged into the disch rge canal.
Dre<<1gc<<I IM,texial <<lispo 1 of onland +(till be contained by <<!ikcs or oLher means as necessary such that; any xunoff vill rot contaminate L'he eaters of th State.
'Dre<<'. Q water will be dcc.ntc<<'. and released to either the i.nt".-c or discharge C>
canal..Rainfall runoff vill noL effect any part of Lhis co;,struct1.on except
'where there axe baze soil slopes duxin~ construction.
Such slopes inclu<<?Q the canal di1-e extension and spoil piles, Punoff from such.lof<<es;"ill not ad" versely effect tne waters of the State.
The pipeline 'will be constructed with eithez concrete p1.pe o. fiberglass p1.pe.
Both materials are being considered; selection of one or th. oL'her i" noL ex-pected until July, 1979 fter material
.n:1 installation bids hav bee.. re-ceived and evaluaLed.
Anoth r option un<<?Qr consideration i" the use of an,.ntifou}ant liner on'az:
ox all of; the "ntcriox surf ces of the pipe.
This option is presently being evaluated.
The antifoulant liner may be either a copp x ba'Qd m'erial. or <<
im~>re~Dated xubber.
A decision on this option i.s not expected until July, l19/9 l
The propos<<.d disc!1arge pip line is si:<<teen feet insi<<le dia-.; ter, four fcQL lax~ex t!lan the exist" 11g tvelve fooL inside diameter pi.peline p Qviously ln-C:i stalled in the ocean at this site.
This ".rczease in, si~e is due to tne efrcc~s of marine fouling mp zienccd with the o -ration of the Lvel; Q fooL diame'
Pay:w 3/3 pipe.
TE~c marine fouling effects experienced arc a heavy'build-up of r, rine organism on the pipe t~all.
This build-up results in an increase in pipe fiic-tion and pressu"e drop, discharge canal eater level and a r duction in thc flo;r of water througli the system.
To limit these adver e effects, thc pipel'nc
!~as been periodically "cleaned'"
a not inexpensive op rations The sixteen foot diameter pipeline will ore~tly reduce tE<e effects of marine gro;rth.
This reduction is due to the fact th..t pressure drop Lhrough thc pipe-lin-is proportional to the square of the flo':~ velocity.
For Lhc';:elv foot
'iameter pipeline, arith a design flo;>- ve ocity of 10 feet p r second. (fps), the pressure drop eras proportional to 100.
For the sixteen'oot diameter pip. line, t.-ith a d" ign flo;w velocity of 5.8 fps, the pressure drop is proportional to 33.
Therefore, the sixteen foot pipe results in a thoro-thirds reduction in'ressure drop.
This rcdu" tion is important as it nil.l reduce the frcqu. ncy oi" pipe cleanings necessary.
The proposed head@all stru" ture and can-"1 extension result frorii the same con-cerh.over marine growth.
The original concept for these components of the ocean di charge pipeline ~ras to use the existin he d:]all strucL'ure.,
ar. cxi"t-ing 92 foot segment of t~relve foot diam ter pipe and the cxistin. c'al'.
Since the u"-e of t.'he t~7elve foot diameter pi.p" scgm'ent and cxistin head:;-eall uould have resulL'ed in more pressure drop th n uith the proposed arr. ngement the original scheme z;as rejected.
The nc;r head;;-all,vms located to thc "outh of,L".".c existing canal to facilitate its constr ation.
This, in turn, requircc the proposed canal c"ten"ion.
Xn cssen" e, these cEian'ge v;ill provid significantly ii>creased margins for t!.c tdver c effec ts of marine -gro:7th in the pipelines
bQ>s'w 3Y'HKCNcr0 CORRKCT HO.
DATE RE'IISIOH OR CH AP APPROYED:
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