ML20236V680

Notification of 871210 Meeting W/Util in Bethesda,Md to Discuss Encl Questions Re Worker Radiation Exposure

ML20236V680
Person / Time
Site:	Millstone, Haddam Neck, 05000000
Issue date:	12/02/1987
From:	Jaffe D Office of Nuclear Reactor Regulation
To:	Stolz J Office of Nuclear Reactor Regulation
References
TAC-64245, NUDOCS 8712040478
Download: ML20236V680 (7)

Text

1 MG021987 l Docket flo..- 50-213/336:

MEMORAfiDUM FOR: John F. Stolz, Director Project Directorate I-4 Division of Reactor Projects -.I/,II

- FR0ti: David !!. Jaffe, Project ffanager Project' Directorate I-4 Division of Reactor Projects'- I/II

SUBJECT:

FORTHCTING f1EETlhG WITH NORTHEAST UTILITIES (NU) ON'

. FORTY-iEAR OPERATING LICENSES

.DATE & TJhE: Thursday, December 10, 1087 8:30 a.m.

LOCATION: Room 6507 flaryland National Bank. Building Bethesda, MD ,

PURPOSE: To discuss the enclosed. questions.related to' worker- i radiation exposure ;i.

l PARTICIPANTS: NRC NU .i C Congel C Sear )

J. Stolz R.-Harris D. Jaffe R. Kacich

0. Lynch l

E. Branagan i C. Hinson i A. Mang j F. Akstulewicz

/

M( 8!'KO F  !

l

. David H. Jaffe, Projec.t fianager- Il Project Directorate I Division of Reactor Projects I/II l

Enclosure:

As stated  ;

cc: See next page St:eetings between f?RC technical staff and applicants or licensees are open for-interested men,bers of the public, petittorers, interveners, or other parties to attend as observers pursuant to "Open Veeting Statement.of I;RC Staff  ;

Felicy," 43 Federal Register 28058, 6/28/78.

DJak e:1m -J 12/i/87 12/)/87 12/j/87 2

a.  ;

n 8712040478 871202 j

PDR ADOCK 05000213 i P PDR y;

..__.______._..___._____i.__'_

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Mr. Edward J. Mroczka Millstone Nuclear Power Station Northeast Nuclear Energy Company Unit No. 2 cc: .

Gerald Garfield, Esq. Mr. Stephen E. Scace Day, Berry & Howard Superintendent Counselors at Law Millstone Nuclear Power Station City Place P. O. Box 128 .

Hartford, Connecticut 06103-3499 Waterford, Connecticut 06385 Regional Administrator, Region I Mr. Wayne D. Romberg U.S. Nuclear Regulatory Commission Vice President, Nuclear Operations Office of Executive Director for Northeast Nuclear Energy Company Operations P. O. Box 270 631 Park Avenue Hartford, Connecticut 06141-0270 King of Prussia, Pennsylvania 19406 Mr. Charles Brinkman, Manager Washington Nuclear Operations C-E Power Systems Combustion Engineering, Inc.

7910 Woodmont Avenue

- Bethesda, Maryland 20814 Mr. Lawrence Bettencourt, First Selectman Town of Waterford Hall of Records - 200 Boston Post Road Waterford, Connecticut 06385 Northeast Utilities Service Company ATTN: Mr. Richard M. Kacich, Manager Generation Facilities Licensing Post Office Box 270 Hartford, Connecticut 06141-0270 Kevin McCarthy, Director Radiation Control Unit ,

Department of Environmental

, Protection State Office Building Hartford, Connecticut 06106 Mr. Theodore Rebelowski U.S. NRC P. O. Box 615

• Waterford, Connecticut 06385-0615 l

Office of Policy & Management l

ATTH: Under Secretary Energy l Division

, 80 Washington Street l Hartford, Connecticut 06106

l .

! Mr. Edward J. Mroczka Millstone Nuclear Power Station Northeast Nuclear Energy Company Unit No. 2 ,

cc:

Gerald Garfield, Esq. Mr. Wayne D. Romberg  ;

l Day, Berry & Howard Superintendent l Counselors at Law Millstone Nuclear Power Station j City Place P. O. Box 128 '

Hartford, Connecticut 06103-3499 Waterford, Connecticut 06385 i

Regional Administrator, Region I '

U.S. Nuclear Regulatory Comission Office of Executive Director for 1 Operations l l 631 Park Avenue

! King of Prussia, Pennsylvania 19406 l

Mr. Charles Brinkman, Manager 1 Washington Nuclear Operations j C-E Power Systems i Combustion Engineering, Inc.

7910 Woodmont Avenue i Bethesda, Maryland 20814 l 1' Mr. Lawrence Bettencourt, First Selectman l Town of Waterford Hall of Records - 200 Boston Post Road Waterford, Connecticut 06385 Northeast Utilities Service Company ATTN: Mr. Richard R. Laudenat, Manager  ;

Generation Facildties Licensing -

rest Office Box 270 Hartford, Connecticu' 06141-0270 Kevin McCarthy, D' ector ,

Radiation Contre' Unit )

Department of 0,vironmental l Protection State Offier Building Hartford, ' nnecticut 06106 l

Mr. Ther 'are Rebelowski U.S. Nr-P. O. 4ox 615 Wateord, Connecticut 06385-0615 Of' .ce of Policy & Management l F 7N: Under Secretary Energy Division

'O Washington Street dartford, Connecticut 06106 i i

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. t i

e MILLSTONE UNIT-2 LICENSE EXTENSION:

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1. In Ref.1, p.1, Northeast Nuclear Energy Company. (NNECO) very briefly described the plant activities which have contributed to high annual doses '

at Millstone Unit 2 for six of the last nine years. The staff notes, however, that Millstone Unit 2 has one of the highest cumulative average exposures of any operating pressurized water reactor (PWR) in the United States. In addition, the average exposure for the three most recent years (i.e., 1984 - 1986) has remained relatively high. Given the magnitude and  !

persistency of these exposures, the staff requests that NNECO provide a l more detailed breakdown of the annual occupational exposures for Millstone l Unit 2 for every year from 1978 to the present. As part of this break- i down, NNECO should identify and describe, to the extent feasible, every 1 l job performed during this period in which more than 10 person-rems were l l expended (similar to Table 8 of Reference 2). NNECO should provide its definition of "special maintenance" work and, for each job listed, should state whether this work was classified as being a special maintenance job.

2. For those jobs described above that are of a repetitious nature,

a. Provide a table listing each of these jobs along with the correspond- 1 ing exposures expended for each of the years from 1978 to present  !

(similar in format to the table on page 5 of the 1986 Refueling and Maintenance Outage ALARA Report).

b. Describe the measures that NNEC0 has taken to eliminate or reduce the i frequency of perfoming these jobs, or parts of these jobs;

c. Describe the measures that NNECO has taken to reduce exposures re-ceived from performing these jobs. For those jobs listed where the yearly exposures have increased or remained the same over the last several years, describe why efforts have been unsuccessful in reducing exposures related to these jobs.

d. If these jobs are being performed on the same or similar equi i components, identify the components, the nature of the work (pment repair,or maintenance, or replacement), and what is being done to avoid 2 repetition.  !

3. In Ref. 1, p. 1, NNECO stated that: "In all the aforementioned years

[1978,1980,1982,1983,1985,and1986],except1980,steamgenerator l inspection and repair projects were the primary contributor to exposure above PWR averages." It appears that steam generator related work has been a recurrent problem at Millstone Unit 2. Describe the steps that NNEC0 has taken over the preceding years to prevent these relatively high exposures from steam generator inspections and repair projects. Specifi-cally, provide the following information: l 1

a. Identif sures (y and describe the steps that NNECO has taken to reduce expo-e.g., use inspection and repair projects. Note the time periods in which these l

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_ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ __ _ _ _ . _ .a

f steps were taken and describe their degree of success in reducing exposures. Describe what further steps NNEC0 plans to take to reduce steam generator work related exposures,

b. Identify and describe NNEC0's efforts to lower dose rates (e.g., f through decontamination and/or shielding) in and around steam genera-tors prior to maintenance. Describe the success of these efforts in reducing area dose rates.

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c. In the 1986 Annual Exposure Report, NNEC0 states that since the 1981-82 refueling outage, approximately 65% of the refueling outage exposures has been due to steam generator work. In 1986, steam generator work accounted for only 40.8% of the outage exposure. By eliminating or minimizing the amount of steam generator related work 1 performed during cutages. NNECO will have made a big step in realizing i their outage year exposure goal of 500 person-rems. Assuming that Millstone Unit 2 does not replace its current steam generators during the next five year period, provide an estimate of what percentage of I the annual exposure will be due to steam generator related work at 1 Millstone Unit 2 over each of the next five years. Identify and describe the steps that NNECD has taken to minimize the need for steam generator repairs. For example, describe any changes in water chemis-try control made io minimize steam generator tube corrosion. Have i condenser tube leaks contributed to degradation of the steam generator tubes, and, if so, what has been done to alleviate this problem? ,

d. Describe NNECO's plans and time schedule to replace the steam genera -

tors at Millstone Unit 2. Describe what steps will be taken to ensure that NNEC0 will not have the same' recurring problems with the new steam generators.  ;

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e. State what jobs other than steam generator related work are large contributors to the annual dose at Millstone Unit 2 on a repetitive basis. What efforts have been made to minimize the exposures related ,

to these jobs. .

4. In Ref. 1, p. 2, NNEC0 stated that: "Our exposure goal of less than 500 man-rem per year includes steam generator work." However, a time frame was not given for attaining this goal. Provide NNECO's time frame ,

for meeting this goal, and describe the specific steps that NNECO will take to reduce exposures at Millstone Unit 2 to 500 person-rems per year, ,

or less. Assuming that this annual goal of 500 person-rems is for an outage year, state what the non-outage year annual exposure goal is.

Describe how you plan to implement these exposure goals by assigning individual exposure goals to the various departments at Millstone Unit 2. .

Describe how you plan to enforce these exposure goals and what steps you {

plan to take when these goals are exceeded.  !

5. In Ref. 1, p. 3, NNECO stated that: "NNECO is taking an aggressive stand for the ALARA philosophy," and that the " Exposure Reduction Initia-tive Program is a major effort on the part of NNEC0" to reduce person-rems. Although the " Exposure Reduction initiatives" are listed on

p. 4 of Ref. 1. these initiatives are not described in enough detail for

i the staff to reach a favorable conclusion. Describe each of the initia-tives in more detail. In particular, describe the scope, expected results

. (e.g., expected person-rem savings), schedules, costs, level of effort, '

and how these initiatives are expected to contribute towards the exposure ,

goal (s) for Millstone Unit 2 (i.e., NNECO's response to, Question #4 of Ref. 1).

6. Describe NNECO's criteria for performing ALARA reviews over the time period 1978 through the present. In particular, state NNECO's cutoff exposure above which an ALARA review must be performed. Provide, to the extent feasible, the percentage of jobs receiving ALARA reviews for each of the years 1978 through present. An integral part of any ALARA review is the post-job review. This review consists of comparing any differences between estimated and actual job exposures,' and recommending better ways to perform the task in the future (e.g., use of mockups and testing for operability of equipment prior to initiating the job, use of different equipment, use of shielding, changes to job procedures, erection of permanent staging and/or platforms, use of experienced workers) that would result in even lower overall exposures. Describe NNECO's procedures for evaluating and implementing post-job review ALARA recommendations which may result in lower future exposures for performing repetitive jobs.  :

7. Provide any additional information that NNECO thinks is relevant for the staff to reach a favorable conclusion regarding the license extension at this time, rather than deferring consideration of NNEC0's request to allow NNECO additicnal time to identify root causes of, correct, and reduce i

occupational exposures at Millstone Unit 2.

References

1. Letter from E. J. Mroczka, NNECO, to USNRC, dated August 4,1987.

2. Letter from E. J. Mroczka and C. F. Sears, NNECO, to USNRC, dated December 22, 1986.

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MEETING NO,TICE DISTRIBUTION

",'Qgp:'y gghe d NRC PDR 1 Local FCR PDI-4 Rdg File ]

T. Murley/J. Sniezek F. Miraglia l S. Varga i G. Lainas l H. Berkow 1 D. Jaffe i M. Lanning j OGC-Bethesda E. Jordan J. Partlow >

i Recq 4,ionist (MNBB)

ACRS (10)

GPA/PA V. Wilsen B. Kolostyak S. Black l

NRC Participar,ts l F. Congol J. Stolz D. Jaffs

0. Lynch E. Dranagan C. Hinson A. l!ang F. Akstulewicz l 3 1

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