NG-99-0989, Provides Estimate of Number of Licensing Requests That Will Be Submitted in FY00 & 01,in Response to Administrative Ltr 99-02, Operating Reactor Licensing Action Estimates

Provides Estimate of Number of Licensing Requests That Will Be Submitted in FY00 & 01,in Response to Administrative Ltr 99-02, Operating Reactor Licensing Action Estimates

ML20210B302
Person / Time
Site:	Duane Arnold
Issue date:	07/16/1999
From:	Peveler K IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
AL-99-02, NG-99-0989, NUDOCS 9907230120
Download: ML20210B302 (2)

Text

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.. 1 ygUTILITIESA L Li A N T n:s Uuhue inc. l Duane Arnold Energy Center IES Utilities 3m Duc noaa Palo, IA 52324 9783 Offh e: 319.Hil.7bil l'ax: 3W.851.7986 www.alhaut-energy.com NG-99-0989 Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Station 0-Pl-17 Washington, D. C. 20555-0001 i

Subject:

Duane Arnold Energy Center Docket No: 50-331 i Op. License No: DPR-49 Response to NRC Administrative Letter 99-02," Operating Reactor Licensing Action Estimates," dated June 3,1999

Reference:

NRC Administrative Letter 99-02 File: A-105

Dear Sirs:

l Per the referenced letter, NRC requested Alliant-IES Utilities Inc. to provide an estimate of l the number oflicensing action requests that will be submitted in Fiscal Years (FY) 2000 and 2001. In addition, the referenced letter also requested that complex licensing actions, such as power uprate requests, license renewal requests, and dry storage applications, be identified by brief title. The estimates are provided in the following:

1) Approximately five licensing action requests will be submitted in the remainder of FY lt)99. None of these items are considered to be complex.

2) Approxin$ately fourteen licensing action requests will be submitted in FY 2000; two of

. these potential items are currently under management review for financial viability and if j approved would be complex submittals:

• Power Re-rate C

• Implernentation of Alternate Source Term at Re-rated Power

! 3) Approximately' ten licensing action requests will be submitted in FY 2001; one of these l . items is considered to be complex:

I

• Dry Cask Storage QO"_

l 9907230120 990716 PDR ADOCK 05000331 P PDR

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July 16,1999 l NG-99-0989 j Page 2 l This letter provides the voluntary response to the referenced letter; it does not include new NRC commitments. Should you have any questions regarding this matter, please contact this office.

l Sincerely, ,

1 o'Wf Kenneth E. Peveler Manager, Regulatory Performance ec: Mr. Michael Boyle U.S. Nuclear Regulatory Commission Mail Stop O-13E4 Washington, D.C. 20555-0001 1 1

J. Dyer (Region III)

B. Mozafari (NRC-NRR)

NRC Resident Office - DAEC K. Putnam E. Protsch J. Franz DOCU

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g hB vor Vjilly g Powir St1 tion Shippingport, PA 15077-0004 SUSHIL C. JAIN (412) 393 5512 Senior Vice President July 15, 1999 Fax (724) 643-8069 UNS*5imion L-99-097 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001

Subject:

Beaver Valley Power Station, Unit No.1 Docket No. 50-334, License No. DPR-66 )

I License Amendment Request No. 272 Duquesne Light Company requests a change to the Technical Specification (TS) Bases.

The proposed change modifies Bases 3/4.1.2 to correspond with the Refueling Water Storage Tank (RWST) volume stated in TS 3.1.2.8. The existing TS 3.1.2.8.b requires  ;

an RWST minimum contained volume of 439,050 gallons. The RWST volume values in I Bases 3/4.1.2 are inconsistent with this value. TS Amendment No. 95 incorporated the l current RWST volume values and the Bases were not changed to address the new values.

Therefore, the first paragraph on page B 3/4 1-2a has been replaced with a new paragraph that clearly defines the RWST volume requirements and is presented in Attachment A.

The minimum required volume of water for the RWST provides: 1) a source of water and Net Positive Suction Head (NPSH) for High Head Safety Injection (HHSI) and Low Head Safety Injection (LHSI), 2) adequate sump water for LHSI and Recirculation Spray (RS) pump NPSH, and 3) water for containment Quench Spray (QS). Specifically, the limiting case for defining the minimum RWST volume is derived from the containment analysis for sub-atmospheric peak pressure during a Reactor Coolant Pmnp suction Large Break Loss of Coolant Accident (LOCA). The minimum volume corresponds to 439,050 total gallons as contained in the RWST. From this total volume, the analysis value of 430,500 gallons is considered to be delivered to the respective systems. l/

The limiting RWST volume utilized in the accident analysis is based on a minimum g delivered volmne (usable value) of 430,500 gallons. In general, the RWST volumes are f i used in calculations for containment sump volumes, minimum and maximum pH 9907230254 990715 l PDR ADOCK 05000334 P PDR l

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Beaver Valley Power Station, Unit No.1

. License Amendment Request No. 272 Page 2 concentrations, QS flow, elevations for pump NPSH [QS, LHSI, HHSI, RS (via sump)],

core reactivity transients (reactivity accidents, LOCAs, main steamline break, etc.), and all containment pressurization transients. The specific RWST volume utilized within a particular calculation depends on the sensitivity for conservative results. The TS 3.1.2.8.b RWST minimum " contained" volume of 439,050 gallons incorporates the mimmmn limiting usable volume of 430,500 gallons. This leaves 8550 gallons remaining which includes both unusable (volume below QS piping inlet penetration) and additional conservative buffer volume.

Bases 3/4.1.2 has been modified to be consistent with the RWST volume requirements stated in TS 3.1.2.8. The existing procedures, level alarms and setpoint calculations for the RWST level requirements identify and/or use the correct (true) contained volume / elevation needed to satisfy the TS 3.1.2.8 surveillance requirements.

Implementing this change to Bases 3/4.1.2 provides further clarification to strengthen these requirements.

The revised Bases are consistent with the RWST volume requirements provided in TS 3.1.2.8. This change does not affect the operation of the Boration System or any other system and is consistent with the accident analyses. This change will not affect the abiliy of any system to perform its design function; therefore, this change is acceptable and will not adversely affect the safety of the plant.

This change was reviewed by the Beaver Valley review committees and was determined to be safe. An implementation period of up to 60 days is requested following the effective date of this amendment.

Sincerely, Sushil C. Jain c: Mr. D. S. Collins, Project Manager Mr. D. M. Kern, Sr. Resident Inspector Mr. H. J. Miller, NRC Region I Administrator Mr. W. P. Dornsife, Director BRP/DEP Mr. M. P. Murphy (BRP/DEP)

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AFFIDAVIT FOR APPLICATION OF AMENDMENT l

COMMONWEALTH OF PENNSYLVANIA)

) SS:

COUNTY OF BEAVER )

l

Subject:

Beaver Valley Power Station, Unit No.1 Docket No. 50-334, License No. DPR-66 License Amendment Request No. 272 Before me, the undersigned notary public, in and for the County and Commonwealth aforesaid, this day personally appeared Sushil C. Jain, to me knowm, who being duly sworn according to law, deposes and says that he is Senior Vice President, Nuclear Services of the Nuclear Power Division, Duquesne Light Company, he is duly authorized to execute and file the foregoing submittal on behalf of said Company, and the statements set forth in the submittal are true and correct to the best of his knowledge, information and belief.

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Sushil C. Jain Subscribed and sworn to before me on this 6Nay of bd .

LaAfD flAlik /

tary Public notens s i Tracey A. Baczek, Notary Public gy lon dr 1 1

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AFFIDAVIT FOR APPLICATION OF AMENDMENT I

COMMONWEALTH OF PENNSYLVANIA)

) SS:

COUNTY OF BEAVER )

Subject:

Beaver Valley Power Station, Unit No.1 Docket No. 50-334, License No. DPR-66 License Amendment Request No. 272 I4

)

Before me, the undersigned notary public, in and for the County and Commonwealth aforesaid, this day personally appeared Sushil C. Jain, to me known, who being duly sworn according to law, deposes and says that he is Senior Vice President, Nuclear Services of the Nuclear Power Division, Duquesne Light Company, he is duly authorized to execute and file the foregoing submittal on behalf of said Company, and the statements set forth in the submittal are true and correct to the best of his knowledge, information and belief.

Sushil C. Jain i

l Subscribed and sworn to before me I l

on this Nay of -

Ona &&m) htary Public /

Notarial Seat Tracey A.Baczek, Notary Public My o ms n xpire Aug. b1 TAPmber pennsvivanta Associationof Notanes