ML20128L614
| ML20128L614 | |
| Person / Time | |
|---|---|
| Issue date: | 05/22/1985 |
| From: | Houston R Office of Nuclear Reactor Regulation |
| To: | Butler W, Lear G, Sheron B Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20128L595 | List: |
| References | |
| FOIA-85-65 NUDOCS 8507110386 | |
| Download: ML20128L614 (39) | |
Text
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UNITED STATES 8
NUCLEAR REGULATORY COMMISSION c
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MEMORANDUM FOR:
Addressees i
FROM:
R. Wayne Houston, Assistant Director for Reactor Safety,,
l Division of Systems Integration
SUBJECT:
PREPARATIONS FOR MEETING WITH HCOG ON WEDNESDAY, 2
JANUARY 23, 1985 I
i In mid-December, the Hydrogen Control Owners Group submitted to the staff its (revised) Program Plan for the accomplishment of the tasks they are undertaking f
or have completed to provide their approach to resolution of the degraded core l
hydrogen control issues for the BWR Mark III plants. to this meno identifies the 14 major tasks in the HC0G Program Plan on which I have indicated i
lead and support Branch review responsibilities.
CS8 continues to function as l
j overall lead techn.ical review Branch for this effort, and DL (Carl Stahle) as formal coordinator with HC0G.
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HC0G has also proposed a schedule for review of the Program Plan (Enclosure 2) l and requested a staff safety evaluation be issued at the completion of this review.
The objective of the evaluation would be a finding that satisfactory l
completion of the Program Plan provides an acceptable basis for use by the affected utilities to demonstrate compliance with the hydrogen control rule l,
(10CFR50.44(c)(iv-vii)].
L I,'
Your support of the January 23rd meeting is necessary and to assure we are prepared for it, I am requesting that you and/or. your designated representa-tive(s) attend a meeting on this in my office (Pb1104) at 9:00 a.m. on Tuesday,
- l l
January 22nd. is a tentative agendalfor the meeting with HC0G that j
will serve as the focus for our preparatory meeting.
I intend to finalize the i
agenda and our participation in it at that time.
I tk j
- r. Wayne Houston, Assistant Director for Reactor Safety, Division of Systems Integrat1on L
3 cc R. Bernero, DSI K. Parczewski, DE 1
n~+ h=1 JSI H. B. Clayton, DHFS l
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( W. Wigdor, DD M. McCoy..DHFS J. wei m, DSI T. Novak, DL C. Tinkler, DSI G. Lainas, DL H. Garg, DE J. P. Knight, DE l
C. P. Tan, DE W. V. Johnston, DE H. E. Polk, DE M. Fleishman, RES
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ADDRESSEES:
Walter Butler, CSB/DSI
- Brian Sheron, RSB/DSI George Lear, SGEB/DE Vince Noonan, EQB/DE Vic Benaroya, CMEB/DE Ashok Thadani, RRAB/ DST Dennis Ziemann, PSRB/DHFS e
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INTRODUCTION o HCOG approach to resolve hydrogen issue Program Plan Acceptance Criteria o Agree upon schedule with NRC on program plan and acceptance criteria o Importance MP&L currently required by license condition to resolve hydrogen control issue by end of first refueling outage CEI fuel load scheduled for' June.1985 Issue for ASLB hearing GSU fuel load scheduled for April 1985 Single issue open requiring second ACRS subcommittee meeting I
IPC fuel load scheduled for January 1986 o Executive participation e
9 I
GOALS FOR 1/23/85 MEETING l
BETWEEN BCOG AND NRC MANAGEMENT Discuss HCOG Approach to Resolving Hydrogen Control Issue o
Review Licensing Schedule Constraints on Issue Resolution o
Discuss Philosophy of Program Plan and Acceptance o
Criteria o
Summarize Contents of Program Plan o
Review Status of Program Plan Activities o
Identify Known Key Open Issues o
Agree Upon Schedule for Achieving Agreement With NRC on program plan and acceptance criteria
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ECOG / MARK III Hydrogen Control Background o
BCOG formed and met with the NRC in mid 1981 to discuss goals o
Emphasis of early HCOG generic efforts on demonstrating containment pressure integrity Developed Containment Response Code (CLASIX-3) and completed sensitivity analysis for hydrogen deflagrations o
BCOG met with the NRC in September 1982 to discuss the planned testing program to resolve remaining open issues To resolve questions on combustion phenomena above the suppression pool, BCOG conducted visuali-zation tests in a 1/20 scale facility o
HCOG met with NRC management in July 1983 to discuss test results and propose additional test-ing and analysis to resolve the issue Agreed on mechanistic approach to define hydrogen
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releases
/
Agreed some scenarios considered by BCOG
/
must result in hydrogen production equivalent to 75% MWR HCOG committed to 1/4 scale test HCOG committed to complete hydrogen generation study o
Met with the NRC Staff several times since then to discuss the 1/4 scale test program, hydrogen generation study and other issues raised by the NRC HCOG submitted a Comprehensive Program Plan and, o
Acceptance Criteria in December 1984 l
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RCOG PROGRAMMATIC GOALS Respond to hydrogen control rule requirements o
Assure containment structural integrity is maintained o
Assure equipment required to survive hydrogen combustion o
remains functional Achieve these goals within the context of:
o
- recoverable degraded core accidents
- using mechanistic approach to define hydrogen release
- considering Mark III unique combustion phenomena
.considering effects of plant unique features
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Complete program consistent with Mark III licensing lf schedules and in cost effective manner m *
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PURPOSE OF B, COG PROGRAM PLAN AND ACCEPTANCE CRITERIA Procram Plan o
Provide management tool to achieve resolution concisely define the tasks required to resolve o
the degraded core hydrogen control issue o
Identify interactions with the NRC in order to review HCOG work Show relationship between tasks in the program o
Provide basis for establishing integrated o
program schedule Acceptance Criteria Define limits on the overall program for respond-o ing to hydrogen control requirements Provide a definitive basis for evaluating o
completed work
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o Focus review on significant issues i
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PHILOSOPHY OF ACCEPTANCE CRITERIA o
Recoverable degraded core accidents are significantly less probable than design basis events Realistic assumptions are appropriate Additional conservatisms need not be imposed on assumptions and analytical or test results some uncertainty in results is acceptable i-o BCOG proposed acceptance criteria Establish reasonable levels of conservatism Specify constraints on assumptions and results Assure that results are limited to recoverable
/
degraded core accidents
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WORK COMPLETED TO DATE BY HCOG i
o Preparation of comprehensive program plans o
Development of a containment response analysis code to evaluate the effects of deflagrations in Mark III containment (CLASIX-3) o completion of extensive containment response sensitivity studies using CLASIX-3 o
Preparation of a topical report documenting and verifying CLASIX-3 o
Completion of a study to define the most probable hydrogen generation event (General Electric)
Researc'h on combust'icn of hydrogen in hydrogen rich, o
steam rich environment o
Research on nature of combustion in Mark III containment in small scale test facility (1/20th scale) o Initiation of 1/4 scale test program o
Modification of EPRI BWR Core Heatup Code o
Calculation of hydrogen production with EPRI BWR Core Heatup Code e
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PROGRAM PLAN TASK
SUMMARY
Task 1 Establish Most Probable Bydrogen Generation Event i
- Specify quantity of hydrogen to be considered
- Establish approach to define scenario
- Develop combination of probabilistic and deterministic scenario I
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Task 2 Select Mitigation Scheme
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- Establish critaria for evaluating alternate j
systems
- Evaluate concepts
- Select system i
- Document Selection 4
Task ~3 Design Hydrogen Ignition System
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- Select common: igniter
- Specify design requirements i
- Establish control requirements I
Task 4 Containment Ultimate capacity Analysis Define containment structure' ultimate capacity Evaluate capacity of local components Investigate negative pressure effects Determine if local detonations can occur l
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1 PROGRAM PLAN TASK
SUMMARY
(CONT)
Task 5 Selection of Containment Response Analysis Code
- Review available codes
- Select code
- Modify code
)
- Complete verification j
- Document verification
)
Task 6 Bydrogen combustion Testing
- Monitor industry hydrogen testing
- Investigate Mark III unique combustion phenomena
- Complete flammability limit tests in hydrogen i
rich atmospheres Task 7 Generation of Hydrogen Release Histories
- Develop preliminary hydrogen release histories based on MARCH results
- Calculate hydrogen release histories with BWR Core Beatup Code
- Complete BWR Core Beatup Code sensitivity study
- Select hydrogen release histories for input into 3
1/4 scale test program i
Task 8 Containment Response Analysis
- Define generic Mark III deflagration analysis 4
base case l
- Complete generic deflagration analysis sensitivity study
- Determine if plant specific deflagration analyses are required
- Define deflagration thermal environment for equipment survivability evaluation I
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PROGRAM PLAN TASK
SUMMARY
(CONT)
Task 9 Diffusion Flame Thermal Environment
- Design 1/4 scale test facility
- Prepare 1/4 scale test matrix
- Complete testing
- Prepare final test report Task 10 Evaluation of Drywell Response to Degraded Core Accidents
- Define drywell break accident sequences
- Calculate drywell break blowdown
- Analyse drywell response using CLASIX-3
- Determine if inverted diffusion flames can occur
- Specify drywell thermal environment for equipment. survivability
- Determine if pool swell loadings might exceed design basis
'l Task 11 Equipment Survivability Analysis Program
- Prepare equipment survivability list
- Model equipment
- Define thermal profiles for survivability analysis
- Calculate thermal response'of components
- Document equipment survivability Task 12 Validation of Analytical Methods
- Develop CLASIX-3 model of 1/4 scale test facility
- Predict 1/4 scale deflagration test
- Include complex calorimeter in test facility
- Calculate response of calorimeter
- Compare calculated response to measured response
- Document methods validation 4
I PROGRAM PLAN TASK
SUMMARY
(CONT)
Task 13 Combustible Gas Control EPG
- Draft EPG
- Calculate action limits
- Define spray timing
- Review EPG directions against licensing assumptions
- Document EPG directions vs. licensing assumption review Task 14 Nevada Test Site Data Evaluation
- Investigate NTS data
- Identify equipment features applicable to Mark III
- Compare licensing assumptions to NTS results Document NTS evaluation results
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STATUS OF BYDROGEN CONTROL PROGRAM i
All' Program Major Tasks in progres' o
s Generic work in Tasks 1 - 6 essentially complete o
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Task 7, Generation of Bydrogen Release Bistories
- Initial hydrogen release histories presented to NRC
- BWR Core Beatup Code sensitivity study completed l
1
- Proposed scenario presented to NRC
- Key open issues between RCOG and NRC identified Task 8, containment Response Analysis o
- Generic containment response analysis completed
- Generic sensitivity study completed
- NRC RAI responses to be submitted in February
- An additional generic deflagration analysis planned in response to RAI I
o Task 9, Diffusion Flame Thermal Environment
- Test facility construction complete t
- Shakedown testing in progress
- Test matrix submitted i
o Task 10, Evaluation of Drywell Response to Degraded Core Accidents
- Accidents to be considered have been established i
- Blowdown models under evaluation l
- Criteria for existence of inverted diffusion flames l
under development 9
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STATUS OF NYDROGEN CONTROL PROGRAM (CONT) o Task 11, Equipment Survivability Analysis Program
- Criteria for developing lista defined
- Generic modeling work initiated o
Task 12, Validation of Analytical Methods
- Complex calorimeter designed, fabricated and installed in facility
- 1/4 scale CLASIX-3 model being developed o
Task 13, combustible Gas control EPG
- EPG drafted
- Initial action limits drafted i
o Task 14, Nevada Test Site Data Evaluation
- Applicable data obtained from EPRI
- Data review in progress S
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OPEN ISSUES o
Define hydrogen release histories which can be produced by recoverable accidents Definition of recoverable accidents Accident sequences which should be considered Resolve questions on BWR Core Neatup Code o
Definition of diffusion flame thermal environment
- Resolution of questions on 1/4 scale facility design
- Finalize 1/4 scale test matrix o
Demonstrate equipment survivability
- Acceptability of methodology validation
/
- NTS data evaluation o
Definition of drywell thermal environment
- Resolution of questions on deflagration analysis
- Assessment of possible inverted diffusion flames o
Development of combustible gas control emergency procedures guideline O
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STATUS OF 1/4 SCALE TEST FACILITY o
Vessel construction complete o
Instrumentation installation complete Peripheral support system (i.e. boiler, hydrogen supply, o
etc.) installation complete o
Data acquisition system installation complete Instrumentation / system checkout and testing in progress o
Plan to complete initial shakedown testing involving hydrogen o
by mid-February 1
o Plan to initiate Scoping Tests by late February Two weeks prior to scoping test initiation o
Must have agreement on hydrogen release histories which will be injected into facility o
Must have agreement on adequacy of facility and test matrix 9
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l OVERALL SCHEDULE FOR AGREEMENT ON PROGRAM PLAN -
AND ACCEPTANCE CRITERIA The following schedules for NRC approval of program plan and acceptance criteria are based upon HCOG's plan.
l NRC acceptance of following requested by 2/4 o
- Generation of Hydrogen Release Histories
- Diffusion Flame Thermal Environment NRC accept'ance of following requested by 2/28 o
- Equipment Survivability Analysis Program
- Nevada Test Site Data Evaluation
- Containment Response Analysis-Evaluation of Drywell R Accidents Issue complete Safety Evaluation Report by 3/15 i
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's 4.0 PROGRAM TASK AND SUSTASK DESCRIPTION The following fourteen major tasks have been identified by the Eydrogen Control Owners Group.
Task 1
- Establish Most Probable Hydrogen Generation Event
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- Select Mitigation System C.5 B Task 3
- Design Hydrogen Ignition System C b 6 (f48)
Task 4
- Containment Ultimate Capacity Analysis 34*B
. Task 5
- Selection of containment Response Analysis Code CSB Task 6
- Hydrogen combustion Testing CSB Task 7
- Generatibn of Hydrogen Release Histories ASB Task 8
- Containment Response Analysis CSS I
Task 9
- Diffusion Flame Thermal Environment (1/4 Scale Test Program)
CS 6 { Rb 6,, f4 8, CMEB)
Task 10 - Evaluation of Drywell Response to Degraded Core Accidents C 5 6 (24 6, u p 6, ---)
Task 11 - Equipment Survivability Analysis Program AQ G (CMa B)
Task 12 - Validation of Analytical Methods CS G (C M c"G, M G B)
Task 13
. Combustible Gas Control EPG j
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Tash 14 - Nevada Test Site Data Evaluation l-
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HYDROGEN PRODUCTION l
CALCULATED AND KASURED H PRODUCTION IN EXCELLENT AGREEENT WITH SFD 1-1 2
AND SFD 1-3 (LIMITED STEAM MD SLOW C00LDOW TESTS WITH EXTENSIVE BLOCKAGES).
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CALCULATED H PRODUCTION SIGNIFICMTLY LESS THAN EASRED FOR SFD-ST AND 2
TMI-2 (REFLOOKD CONDITIONS - GOOD STEM AVAILABILITY WEN HOT).
HYDROGEN PRODUCTION RATES IN EXCELLENT AGREEENT UN.TIL LIQUEFACTION AND j
RELOCATION IS PREDICTED USING CONSTANT FLOW BOUNDARY CONDITIONS.
BEYOND THAT POINT DATA SHOWS MULTIPLE PEAKS AS FLOW BLOCKAGES AND SHROUD FAILURES (?)
TAKE PLACE.
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TEST CALCULATED.
EASURED sFDl-1 71 s 70 i ll e i
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- 140 SFD - ST TMI-2^
250-330 Ks-370 - 459 Ks i
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CALCULATED TOTALS ~ ARE FOR BUNDLE OR CORE MATERIALS, EASURED TOTALS MAY INCLUDE OTHER STRUCTURES.
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LIQUEFACTION AND RELOCATION NOT SUFFICIENTLY WELL UNDERSTOOD TO PREDICT
'THE LIKELIHOOD, THE TIMING, OR THE TEMPERATURE OF COWLETE FLOW BLOCKAGE.
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j PROPOSED AGENDA for 1/23/85 9:00 - 9:30 a.m.
Introduction & Overview Goals & Objectives HCOG Organization H Rule & Implementation Provisions 2
9:30 - 10:00 a.m.
H Control Test Program 2
- Test Program Plan Philosophy & Criteria
- Task Description
- - Open Issues 10:00 - 10:30 a.m.
Status of Test Program
- Test Facility
- Test Program Schedule 10:30 - 11:00 a.~m.
Break & Caucus 11:00 - 11:30 a.m.
NRC Comments Lunch 1:00 - 5:00 p.m.
Open Possible Agenda Items:
(a) H Generation Rates 2
(b) Other Issues to be Identified (c) Scheduling ' Future Meetings O
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- Impad on keedsms (sLd) Rid be%6> of Reco'erade Seguence.
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PROPOSED AGENDA FOR THF. JANUARY 23 MEETING BETWEEN THE HYDROGEN CONTROL OWNERS GROUP AND THE NUCLEAR REGULATORY COMMISSION 9:30 Introduction and Overview 9:00 Goals and Objectives 1
IICOG Organization Hydrogen Rule and Implementation Schedule 10:00 Hydrogen Control Program 9:30 Program Philosophy and Acceptance Critoria Task Descriptions Open Issues 10:00 -
10:30 Schedule Status of 1/4 Scale Test Facility Status of Program Overall Schedulo 10:30 -
11:00 NRC Caucus l
11:00 -
11:30 NRC Comments i
11:30 -
1:00 Lunch (Meeting Room Unavailable) 1:00 4:00 Detailed Task Discussion Task 1, Establish Most Probable Hydrogen Generation Event Task 7, Generation of Hydrogen Release Histories 5:00 1ssue Resolution Schedule 4:00 Layout Schedule for Planned Meetings with the NRC Schedule for Submittals to the NRC i
o Reports o
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January 15, 1985 Docket Nos. 50-440, 50-416, 50-417, 50-458, 50-459, 50-461 MEMORANDUM FOR:
Elinor G. Adensam, Chief Licensing Branch No. 4 Division of Licensing FROM:
Carl Stahle, Proiect Manager Licensing Branch No. 4 Division of Licensing
SUBJECT:
FORTHCOMING MEETING WITH HYDROGEN CONTROL OWNERS GROUP (HCOG) FOR ALL MARK III PLANTS DATE & TIME:
Wednesday, January 23, 1985 9:00 am - 5:00 pm LOCATION:
P-114 Phillips Building Bethesda, MD PURPOSE:
To discuss the Hydrogen Control Program PARTICIPANTS *:
NRC J. Knight, W.' Johnston, R. Bernero, R. Houston, B. Sheron, M. Widgor, J. Rosenthal, A.' Thompson, C. Stahle, W. Butler, V. Benaroya, C. Tinkler, K. Parczewski, H. Garg, M. Su HCOG S. Hobbs, et al Carl Stahle, Proiect Manager Licensing Branch No. 4 Division of Licensing t
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MEETING NOTICE DISTRIBUTION:
DocketNo(s): 50-440,416,417, 458, 459, 451 NRC PARTICIPANTS NRC PDR Local PDR J. Knight TIC W. Johnston NSIC R. Bernero PRC System R. Houston LB #4 r/f B. Sheron H. Denton/E. Case
!M. Widgor - ? M D. Eisenhut/F. Miraglia
' J. Rosenthal T. Novak A. Thompson J. Youngblood C. Stahle A. Schwencer W. Butler G. Knighton V. Benaroya D. Crutchfield C. Tinkler C. Grimes K. Parczewski G. Holahan H. Garg C. Thomas M. Su G. Lainas S. Varga D. Vassallo J. Miller J. Stolz R. Vollmer W. Johnston J. P. Knight I
Bernero R
L Rubenstein i
W. Houston bec: Applicant & Service List D. Muller T. Speis F. Schroeder F. Rowsome H. Thompson W. T. Russell ACRS (16)
Attorney, OELD D. L. Jordan, I&E R. Heischman I&E F. Ingram, PA Receptionist (Only if meeting is held in Bethesda)
Project Manager C. Stable Licensing Assistant M. Duncan f
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MARK m CONTAINMENT HYDROGEN CONTROL OWNERS GROUP Som s. sodes. csoi, mon c/o Mississippi Power ona Ught e P.O. Box 1640 e Jocxson, Mississippi 39205 601 969 2456 January 8, 1985
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U. S. Nuclear Regulatory Connission Office of Nuclear Reactor Regulation Washington, D. C.
20555 Attention: Mr. Harold R. Denton
Dear Mr. Denton:
SUBJECT:
Hydrogen Control Owners Croup Program Plan BGN-025 on December 14, 1984, the Hydrogen Control Owners Group (HCOG) submitted a copy of its Hydrogen Control Program Plan for demonstrating compliance with the hydrogen control requirements. ECOG requests that a meeting between the ECOG members and executives and Nuclear Regulatory Commission (NRC) Staff be scheduled for January 23, 1985.
The purpose of this meeting is to discuss the Hydrogen Control Program Plan and acceptance criteria, and to obtain NRC approval of the program plan concept and philosophy. Attachment 1 to this letter provides a proposed agenda for this meeting.
Following the requested January 23, 1985 meeting, the BCOG believes that more detailed technical meetings with appropriate NRC Staff review personnel are needed to review the individual program plan tasks and associated acceptance criteria. It is suggested that these meetings be held on January 24 and 25, 1985.
Some of those tasks are complete (or essentially complete) as identified in the individual task descriptions in the program plan, and it is anticipated that discussion of those tasks will be limited. Attachment 2 provides a proposed agenda with those two days which groups closely related tasks, thus allowing more effective conduct of the meetings.
ECOG feels that the approach set forth in this letter will satisfactorily resolve hydrogen control issues as related to the Mark III Containment in a manner that will efficiently utilize NRC and utility resources.
If you have any questions, please don't hesitate to contact me.
Sincerely, g1,,
S. H. Hobbs' Chairman, ECOG Y??
SHH:vog Attachments gyggjQ M,
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HGN-025 Peg 2 2 cc: Mr. Carl R. Stahle (w/a)
Hydrogen Control Program Manager U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Washington, D. C.
20555 Mr. Charies G. Tinkler (w/a)
Containment Systems Branch U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Washington, D. C.
20555 Mr. John Cummings, Project Manager (w/a)
Hydrogen Studies, Division 4441 Sandia National Laboratory Albuquerque, NM 87185
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Attcchment 1 to HGN-025 MEETING AGENDA HYDROGEN CONTROL OWNERS GROUP MEETING WITH NRC STAFF JANUARY 23, 1985 10:00 - 10:15 Introduction and overview
- Goals and Objectives of Meeting
- HCOG Organization
- Program Plan Philosophy 10:15 - 11:00 Hydrogen control Program
- Programmatic Goals
- Work Complete to Date
- Open Issues
- Purpose of Program Plan
- Acceptance Criteria Philosophy
- Task Description
- Schedule 11:00 - 11:30 Program Plan Acceptance Schedule
- Work in Progress
- Major Milestones
- Requested NRC Action 11:30 - 12:00 Executive Sunnary -
12:00 - 1:00 Lunch 1:00 - 2:00 Open Discussion s
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MEETING AGENDA HYDROGEN CONTROL OWNERS GROUP MEETING WITH NRC STAFF JANUARY 24 and 25, 1985 January 24, 1985 8:30 - 12:00 Detailed Task Discussion
- Task 2 Select Mitigation System
- Task 3 Design Hydrogen Ignition I
System
- Task 4 Containment Ultimate Capacity Analysis
- Task 5, Selection of Containment Response Analysis Code
- Task 6 Hydrogen Combustion Testing
- Task 8 Containment Response Analysis
- Task 9.
Diffusion Flame Thermal Environment
- Task 10. Evaluation of Dryvell Response to Degraded Core Accidents
- Task 13, Combustion Cas Control EPG 12:00 - 1:00 Lunch 1:00 - 4:00 Continuation of Detailed Task Discussion January 25, 1985 8:00 12:00 Detailed Task Discussion
- Task 1, Establish Host Probable Hydrogen Generation Event
- Task 7, Generation of Hydrogen Release Histories 12:00 - 1:00 Lunch 1:00 - 4:00 Detailed Task Discussion j
- Task 11 Equipment Survivability i
Analysis
- Task 12 Validation of Analytical Methods
- Task 14. Nevada Test Site Data Evaluation d2vog4
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January 24, 1985 Mr.
J.M.
Felton, Director Division of Rules and Records Orrice or Adminsstration FREEDOM OF INFORMAll0N U.S.
Nuclear Regulatory Commission ACT REQUEST fora-ts-6S Vashington, D.C.
20555 g /gf,
FPEEDOM OF INFORMATION ACT REQUEST
Dear Mr. Felton:
Fursuont to the Freedom or Information Act, 5 USC 552, os o t.e n d e d, and the provisions or 10 CFR Port 9, the undersagned hereby requests the rollowing:
All nCtGs3 trarEcripts, minuteE, PGDorts, handouts, ottGndonCG lists, or other documents from or concerning the meeting hele Januorf 23, 1985 between the NRC Starr and the Hydrogen Control Owners Group (HCOG) in Bethesda, MD, or any other NRC-HCOG meetings held the week or January 21, 1985.
In occordance with your policy on ree waivers. I hereby request that 75% or the fees for the search and production of these items be waived as they relots to Issue NS, on hydrogen contrcl, odmitted in the Perry OL proceeding.
I ogree to occept the remaining (25%) chorges.
52ncerely, s$l S u s o r.
L.
Hiott OCRE ReFresentotive E275 Munsen Fd.
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