ML20024A266
| ML20024A266 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 06/10/1983 |
| From: | Clark R Office of Nuclear Reactor Regulation |
| To: | |
| References | |
| TAC-51765, NUDOCS 8306160255 | |
| Download: ML20024A266 (6) | |
Text
fh M O
o 3
pOS/7D-0h 7590-01 UNITED STATES NUCLEAR REGULATORY C0fttISSION PORTLAND GEriFRAL ELECTRIC C0VPA!!Y, ET AL.
DOCKET f!O. 50-344 NOTICE OF CONSIDERATION OF ISSUANCE OF A"Ef;DMENT TO FACILITY OPERATIftG LICENSE AND PROPOSED f!0 SIGNIFICA!!T HAZARDS CONSIDERATION DETERiilMATION The U. S. Nuclear Regulatory Commission (the Cormission) is considering issuance of an amendment to Facility Operating License l'o. flPF-1 issued to Portland General Electric Company, Pacific Power and Light Company, and the City of Eugene, Oregon (the licensee) for operation of the Trojan Nuclear Plant located in Columbia County, Oregon.
The amendment would revise the method for conducting the flow balance test for the four emergency core cooling injection lines from the centrifugal charging pumps and safety injection pumps. At present, each cold-leg injection linefromthosepumpsmusthaheadesignatedminicumandmaxinumflow.
Under the licensee's proposal, the sum of the injection line flow rates, excludingthehighestflowrate,musthaheadesignatedminimumhalue,and the total flow must be less than a specified maximum (pump runout limit).
Theamendmentwouldalsorehisetheninimuminjectionfhwfromasingle charging pump from 345 gpm (for 3 injection lines) to 339 gpm, consistent witharehisedanalysis,anddeletetheflowbalancingrequirementforthe hot-leg injection lines for the safety injection system. Theserehisions to the technical specifications would be made in response to the licensee's application for amendment dated June.1, 1983.
Before issuance of the proposed license anendment, the Comission will hahemadefindingsrequiredbytheAtomicEnergyActof1954,asamended(the w, s p w.;m;p r%i..
- se,ricsg3383o6to DR ADOCK 0500034
.. - ~. - ~. ~..
~... ~ ~ ~. ~. -
....... ~... -...
_..,,...............,.....................i.....................
wnc ronu sia poca Nacu oua OFF1ClAL REC _ORD COPY usom mi-m..so
.a w
7590-01.
The Comission has made a proposed determination that the amendment request involves no significant hazards consideration. Under the Comission's regula-tions in 10 CFR 50.92, this means that operation of the facility in accordance withtheproposedamendmentwouldnot(1)inholveasignificantincreaseinthe probabilityorconsequencesofanaccidentpreviouslyehaluated;or(2) create thepossibilityofanewordifferentkindofaccidentfromanyaccidentprehiously evaluated;or(3)inholheasignificantreductioninamarginofsafety.
The revised method for flow balancing repretents an improvement in the surveillance acthod.
It ensures that ninimum injection line flow is maintained while at the same time allowing for differences in total flow between individual pumps.
The mininum injection flow change fro,345 gpm to 339 gpm is not a signi-ficant change.
It results in a calculated peak clad temperature for a loss-of-coolant accident of less than 10F. Thus, the peak clad temperature, under the change, would be 19710F, well below the acceptance criterion of 22000F.
i Deleting the flow balancing test for hot leg injection is not a signi-ficant change since flow balance is not required to satisfy the current safety analysis. Hot leg injection is used during the recirculation phase of a loss-of-coolant accident. Underthiscondition,thecoreiscoheredwithwaterand all hot-leg injection water flows to the top of the core. Therefore, a specific flow balance between injection lines is not important. Therefore, based on these considerations and the three criteria given abohe, the Comission has made aproposeddeterminationthattheamendmentrequestinholhesnosignificant t
hazards consideration.
omcc) sun =4ue>
oare >
Nnc ronu ais cioaci uscu om OFFICIAL RECORD COPY useo mi-m;m
C O
O h
9
,s,0 The Commission has determined that failure to act in a timely way would result in extending the shutdown of the facility.
Therefore, the Comission has insufficient time to issue its usual 30-day notice of the proposed action for public comment.
If the proposed determination becomes final, an opportunity for a hearing will be published in the Federal Register at a later date and any hearing request will not delay the effective date of the amendment.
If the Commission decides in its final determination that the amendment does involve a significant hazards consideration, a notice of opportunity for a prior hearing will be published in the Federal Register and, if a hearing is granted, it will be held before any amendment is issued.
TheCommissionisseekingdubliccommentsonthisproposeddetermination of no significant hazards consideration.
Comments on the proposed determina-tion may be telephoned to Robert A. Clark, Chief of Operating Reactors Branch No. 3, by collect call to 301-492-4559 or submitted in writing to the Secretary to the Commission, U. S. Nuclear Regulatory Commission, Washington, D. C.,
20555, Attn:
Docketing and Service Branch. All comments received by July 6, 1983 will be considered in reaching a final determination. A copy of the application may be examined at the Commission's Public Document Room, 1717 H Street, N.
W., Washington, D. C., and at the Multnomah County Library, 801 S.W. 10th Avenue, Portland, Oregon.
Dated at Bethesda, Maryland, this 10th day of June,1983.
FOR THE NUCLEAR REGULATORY COMMISSION Cr,Jr.M Wgncd q
- SEE PREVIOUS PAGE FOR CONCURRENCE Rcba t A. CAM <.;
i AND DISTRIBUTION.
Robert A. Clark. Chi 1f Operating Reactors Branlch #3 omce)
.. Division"o F"ttcensing" suamre) our>
P4RC FORM 318 (10-80) NRCM 0;t40 OFFiClAL RECORD COPY usam isai-mm -
y.
~
7590-01 The Commission has detemined that failure to act in a timely way would result in extending the shutdown of the facility. Therefore, the Comission has insufficient time to issue its usual 30-day notice of the proposed action for public comment.
If the proposed deternination becomes final, an opportunity for a hearing will be published in the Federal Register at a later date and any hearing request will not delay the effective date of the amendment.
If the Commission decides in its final determination that the amendment does involve a significant hazards consideration, a notice of opportunity for a prior hearing will be published in the Federal Register and, if a hearing is granted, it will be held before any anendment is issued.
The Comhsion is seeking public comments on this proposed determination.
Comments on the proposed determination may be telephoned to Robert A. Clark, ChiefofOperatingReactorsBranchMo.3bycollectcallto301-49f-4559or submitted in writing,to the Secretary to the Commission, U. S. Huclear Regu-4 latory Comission, Washington, D. C., 20555, Attn: Docketing and Service Dranch. All comments received by July 6, 1983 will be considered in reaching a final determination. A copy of the application may be examined at the Commission's Public Document Room, 1717 11 Street, M. W., Washington, D. C.,
and at the Multnomah County Library, 801 S.H.10th Avenue, Portland, Oregon.
Dated at Bethesda, Maryland, this DISTRIBUTION: Docket File, NRC PDR FOR THE NUCLEAR REGULATORY C0 MISSION f
Local PDR, NSIC, ORB #3 Rdg, f5 DEisenhut, PMKreutzer-3, I
CTRammell, RAClark, OELD LHarmon, WJones, CMiles, Robert A. Clark, Chief ACRS-10, Gray File Operating Reactors Branch #3 Division of Dicensing.
bec: See next pace aM m
gtS'tfu.......l.m.......i.
omce > 0RR33....
. SR$.[:.DL....... 0.R.B.#.3..:.D.t.
... D.p.;.DJ,.
08 M.s.use.r
..M.ramme!.!zef J W i w L... 9...
..s.......
omy.6li...LB3......BQ1B.3.......
.21.5.1B.3......... 61...1B3.........
. Bl.... ]B3.........
nac ronu sis oomi nncu oao OFFICIAL RECORD COPY usam mi -m-m
s
~
cc: Mr. Bart D. Withers Vice President Nuclear Portland General Electric Company 121 S. W. Salmon Street Portland, Oregon 97204 Donald W. Godard, Administrator Siting and Regulation Oregon Department of Energy Room 111, Labor and Industries Building Salem, Oregon 97310 Michael Malmros, Resident. Inspector U. S. Nuclear Regulatory Commission Trojan Nuclear Plant P. O. Box 0 Rainier, Oregon 97048 Regional Administrator Nuclear Regulatory Commission, Region V Office of Executive Director for Operations 1450 Maria Lane, Suite 1210 Walnut Creek, California 94596 4
4 I
?
OFF4CE)
SURNAXEh ouap
( nac ronu ais po4a sacu o2e OFFICIAL RECORD COPY usam im-mm
pa nu%
L 'l f;. ' _
$k p
Q
~
o
[
UNITED STATES L-
- o,,
f NUCLEAR REGULATORY COMMISSION DMMM**
WASHINGTON, D.C. 20555 ORB #3 Rdg Docket No. 50-334 PMKreutzer i
i Docketing and Service Section Office of the Secretary of the Commission
SUBJECT:
PGRTLAND GEMERAL ELECTRIC COMPNiY, ET AL., Trojan Nuclear Plant Two signed originals of the Federal Register Notice identified below are enclosed for your transmittal to the Office of the Federal Register for publication. Additional conformed copies ( 6 )of theNotice f
are enclosed for your use.
O Notice of Receipt of Application for Construction Permit (s) and Operating License (s).
[
O Notice of Receipt of Partial Application for Construction Permit (s) and Facility License (s): Time for Submission of Views on Antitrust Matters.
O Notice of Availability of Applicant's Environmental Report.
O Notice of Proposed issuance of Amendment to Facility Operating License.
O Notice of Receipt of Application for Facility License (s); Notice of Availability of Applicant's Environmental Report; and Notice of Consideration of issuance of Facility License (s) and Notice of Opportunity for Hearing O Notice of Availability of NRC Draft / Final Environmental Statement.
O Notice of Limited Work Authorization.
O Notice of Availability of Safety Evaluation Report.
O Notice of Issuance of Construction Permit (s).
O Notice of issuance of Facility Operating License (s) or Amendment (s).
50 Other: Motice of Consideration. Please eXnidite publication of this nntien beenuen is has a,7uly 6. Inn 3 deadline. Cnntact Patty on X24556, PF-dato tn ho published.
I Division of Licensino Office of Nuclear Reactor Regulation
- As Stated
- O OFFICE-e-P
..._zer/pn j-su c--
f om-
.6119L83
{
NRC FORh4102 7 ~79 f
}
+
).
s
.