ML17187B140

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Summary of 970313 Meeting W/Comed Re Potential License Amend Concerning Control Room Habitability.List of Attendees & Licensee Presentation Encl
ML17187B140
Person / Time
Site: Dresden, Quad Cities  Constellation icon.png
Issue date: 09/24/1997
From: Stang J
NRC (Affiliation Not Assigned)
To:
NRC (Affiliation Not Assigned)
References
NUDOCS 9710060445
Download: ML17187B140 (14)
v • d • e


Text

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LICENSEE:

FACILITIES:

SUBJECT:

September"24,~1997. *

~:OMMONWEAL TH EDISON COMPANY;:

DRESD~N,. UNITS *2 AND 3, AND QUAD CITIES, UNITS 1 AND 2

SUMMARY

OF MEETING' TO DISCUSS A PROPOSED LICENSE AMENDMENT CONCERNING CONTROL ROOM HABITABILITY On March 13, 1997, a public meeting was held* between the NRC staff and.

Commonwealth Edison Company (ComEd, the licensee) to discuss a potential license amendment concerning control room habitability. A list of attendees is provided as Enclosure 1.

The licensee discussed the background of the control room habitability calculations and the current configuration of the control r6o~s at both Dresden and Quad Cities. The licensee presented to the staff how the current des*i~n bases at both Dresden and Quad Cities meet the current regulatory requirements.

The licensee also presented to the staff th~ir proposed license amendment to change the c~lculational techniqu~s used in determining the dose received by control operators following a design basis accident. Enclosure 2 is the handout material provided by the licensee.

Following the licensee's presentation, a question and answer period was held.

The staff informed the licensee of the correct regulatory guides and section from the standard review plan to use in preparing the license amendment.

By letter dated May 19, 1997, the licensee submitted license amendments to revise the control* room radiological assessment for both Dresden ~n~ Quad

.Cities. The staff i~ currently reviewing the license amendments.. *.

07\\glna\\ stgned Br._

John F~ Stang, *senior Project Managef Project Dfrectorate I 11-2 Division of Reactor Projects - Ill/IV Office of Nuclear Reactor Regulation Docket Nos. 50-237, 50-249, 50-254, 50-265

Enclosures:

1.

List of M~eting Attendees

2.

Licensee Presentation cc w/encls:

See next page DISTRIBUTION: (w/encl 1 only)

HARD COPY E-MAIL:

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\\"Docket (wTenclJ ___ &_2!

SCollins/FMiraglia, SJCl/FJM *

\\PUBtIC-(w/entl 1 & 2 R. Zimmerman, RPZ

t. Adensam PDIII-2 r/f (w/encl

& 2)

R. Capra, RACl H. Walker

. OGC, 015Bl8 G. Tracy, GMT J. Segala Df0 l.

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--:'C. Moore, ACM J. Hayes

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September 24, 1997

  • LICENSEE:

COMMONWEALTH EDISON COMPANY FACILITIES:

SUBJECT:

DRESDEN, UNITS 2 AND 3, AND QUAD CITIES, UNITS 1 AND 2

SUMMARY

OF MEETING TO DISCUSS A PROPOSED LICENSE AMENDMENT CONCERNING CONTROL ROOM HABITABILITY On March 13, 1997, a public meeting was held between the NRC staff and Commonwealth Edison Company (ComEd, the licensee) to discuss a potential license amendment concerning control room*habitability. A list of attendees is provided as Enclosure 1.

The licensee discussed the background of the control room habitability calculations and the current configuration of the control rooms at both Dresden and Quad Cities. The licensee presented to the staff how the current desi~n bases at both Dresden and Quad Cities meet the current regulatory requirements.

The licensee also presented to the staff their proposed license amendment to change the calculational techniques used in determining the dose received by control operators following a design basis accident. Enclosure 2 is the handout material provided by the licensee.

Following the licensee's presentation, a question and answer period was held.

The staff informed the licensee of the correct regulatory guides and section

  • from the standard review plan to use in preparing the license ameridment.

By letter dated May 19, 1997, the licensee submitted license amendments to revise the control room radiological assessment for both Dresden and Quad Cities. The staff is currently reviewing the license amendments.

John F. Stang, Senior Project Manager ProJect Directorate 111-2 Division of Reactor Projects - Ill/IV Office of Nuclear Reactor Regulation Docket Nos.

50~237, 50-249, 50-254, 50-265

Enclosures:

1. List of Meeting Attendees
2.

Licensee Presentation cc w/encls: See next page DISTRIBUTION: (w/encl 1 only)

HARD COPY Docket (w/encl 1.& 2!

PUBLIC (w/encl 1 & 2 PDIII-2 r/f (w/encl

& 2)

OGC, 015818 ACRS, T2E26 E-MAIL:

SCollins/FMiraglia, R. Zimmerman, RPZ R. Capra, RACl G. Tracy, GMT C. Moore, ACM R. Pulsifer SJCl/FJM E. Adensam H. Walker J. Segala J. Hayes W. Kropp, Riii, WJK (w/encl 1 & 2)

J. Stan~, JFS2 {w/encl 1 A 2)

T. Martin (e-mail to SLM3)

DOCUMENT NAME:G:\\CMNTJR\\DRESDEN\\DR0523.SOM To receive a copy of this document, indicate in the box:

aca = Copy without enclosures *

- to w* h closures *N° = No co OFFICIAL RECORD COPY

LICENSEE:

FACILITIES:

SUBJECT:

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 September 24. 1997 COMMONWEALTH EDISON COMPANY DRESDEN, UNITS 2 AND 3, AND QUAD CITIES, UNITS 1 AND 2

SUMMARY

OF MEETING TO DISCUSS A PROPOSED LICENSE AMENDMENT CONCERNING CONTROL ROOM HABITABILITY On March 13, 1997, a public meeting was held between the NRC staff and Commonwealth Edison Company (ComEd, the licensee) to discuss a potential license amendment concerning control room habitability. A list of att~ndees is provided as Enclosure I.

The licensee discussed the background of the control room habitability calculations and the current configuration of the control rooms at both

.Dresden and Qu~d Cities. The licensee presented to the staff how the current design bases at both Dresden and Quad Cities meet the current regulatory requirements.

The licensee also presented to the staff their proposed license amendment to change the calculational techniques used in determining the dose received by control operators following a design basis accident. Enclosure 2 is the handout material provided by the licensee.

Following the licensee's presentation, a question and answer period.was held.

The staff informed the licensee of the correct regulatory guides and section from the standard review plan to use in preparing the license amendment.

By letter dated May 19, 1997, the licensee submitted license amendments to revise the control room radiological assessment for both Dresden and -Ouad Cities. The staff is currently reviewing the license amendments.

c.J~

V<V J.

hn F. Stang Senior Project Manager Project Directorate 111-2 Division of Reactor Projects - Ill/IV Office of Nuclear Reactor Regulation Docket Nos. 50-237, 50-249, 50-254, 50-265

Enclosures:

I. List of Meeting Attendees

1. Licensee Presentation cc w/encls: See next page

J cc:

Ms. I. Johnson Acting Manager, Nuclear Regulatory Services Commonwealth Edison Company Executive Towers West III 1400 Opus Place, Suite 500 Downers Grove, Illinois 60515 Michael I. Miller, Esquire Sidley and Austin One First National Plaza Chicago, Illinois 60603 Site Vice President Dresden Nuclear Power Station 6500 North Dresden Road Morris, Illinois 60450-9765 Station Manager Dresden Nuclear Power Station 6500 North Dresden Road Morris, Illinois 60450-9765 U.S. Nuclear Regulatory Commission Resident Inspectors Office Dresden Station 6500 North Dresden Road Morris, Illinois 60450-9766 Regional Administrator

  • 1035 Outer Park Drive Springfield, Illinois 62704 Chairman Grundy County Board Administration Building 1320 Union Street Morris, Illinois 60450 Document Control Desk-Licensing Commonwealth Edison Company 1400 Opus Place, Suite 400 Downers Grove, Illinois 60515 Dresden Nuclear Power Station Unit Nos. 2 and 3

LIST OF ATTENDEES MARCH 13. 1997 NAME COMPANY TELEPHONE NO.

1. : John Stang NRC 3011415-1345
2.

Terry Riley

  • Corn Ed x2714
3.

David Studley ComEd-NUS 3011258-2437

4.

Jerry* Lahti Corn Ed 630/663-3858

5.

.Bob Rybak Corn Ed 630/663-7292

6.

Frank Spangenberg ComEd 815/942-2920 x 3800

7.

Linda Weir Corn Ed 815/942-2920 x 3109

8.

Peter Holland Corn Ed 815/942-2920 x 2714

9.

Greg Tile Corn Ed 309/654-2241 x 3186

10.

Bob Pulsifer

  • NRC 301/415-3016
11.

Harold Walker NRC 301/415-2827

12.

John Segala NRC 301/415-1858

13.

Jack Hayes NRC 301/415-3167

14.

R. C. 01 son ComEd/NUS 301/258-2588

15.

R. A. Capra NRC 3011415-1395

Dresden and Quad Cities Control Room Habitability Amendment

, ComEd/NRC Meeting

~

March 13, 1997

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Objective of Meeting

+ Provide Clear Description of Approach

+ Review Methodology

+ Discuss Schedule

+ Obtain. Comments

=

Background===

+ 1982 Control Room Habitability Cales.

+ 1987 CREFS Initiation Times

+ 1996 In-Leakage and dP Issues

+ Other Issues

j.
  • j

Objective of New Analyses

+ Close Out Regulatory Issues

+ Obtain Additional Operating Margin

+ Use Up to Date Methods

Design Inputs RADIOLOGICAL RELEASE PARAMETERS CURRENT PROPOSED Power Level 100%

102%

Source Terms Tiff 60,000 MWD/MT LOCA Release To Reg Guide 1.3 Reg Guide 1.3 Primary Containment Scrubbing NONE SRP 6.5.5 (Bypass leakage not scrubbed SF of 5)

ESF Leakage 0

0 MSIV Leakage 11.5 SCFM per Line Parametric SBGTS %

  • 90%

95%#

Primary Containment 1.6%/Day (Dresden) 1.6%/Day + MSIV Leakrate 1.0%/Day (Quad)

Leakage 1.0%/Day +

MSIV Leakage Mixing In Secondary 1'00%

200% - SRP 6.5.3 Containment SBGTS Flow 4000 SCFM 4400 SCFM MSIV Leakage Holdup Old Bechtel BWROG Treatment

  • LOCA Analysis uses 99%
  1. Requires Justification

Design Inputs (Continued)

DOSE ASSESSMENT PARAMETERS

  • CURRENT PROPOSED 30 min fumigation RG 1.3 Same Control Room Chi/Q Building Wake Model for ground release Site Boundary Chi/Q 30 min fumigation RG 1.3 Same CREVS Flowrate 2000 SCFM

CREVS Efficency 99o/o

.Same CREVS lnitation Manual 40 min (Dresden)

Same (Dresden)

Manual 11 O min (Quad Parametric (Quad Cities)

  • Cities)

CREVS lnleakage 263 SCFM (Dresden)

Parametric Review 260 SCFM (Quad Cities)

Recirculation Flow & Eff.

NIA N/A Misc.

Murphy Campe Same Dose Conversion ICRP-2 ICRP-30

Licensing Approach

+Submit as a Amendment (License or Tech Spec) Control Room.Analyses

+ Obtain Approval of Methodology

+ Complete Remainder of Analyses

- 1 Inch Instrument Line Break

- Spent Fuel Bundle Drop

- Technical Support Center et. al.

+Perform 50.59 Reviews and Proper Submittals

  • I

Questions ???

0 Conclusions.

+ Close Out Long Standing Issues

+Use Up to Date Methods

  • .
  • Submit Amendment in April
  • Complete Remaining Analyses I

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