ML20129C244

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Forwards Listing of Util Responses to Generic Ltr 82-22 Re Economic & Worker Safety Aspects of Steam Generator Tube Degradation Problem.Supporting Documentation Encl
ML20129C244
Person / Time
Issue date: 12/17/1984
From: Kammerer C
NRC OFFICE OF CONGRESSIONAL AFFAIRS (OCA)
To: Markey E
HOUSE OF REP., INTERIOR & INSULAR AFFAIRS
Shared Package
ML20127A342 List:
References
FOIA-84-780 GL-82-22, NUDOCS 8506050446
Download: ML20129C244 (24)
v • d • e


Text

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UNITED STATES l'

p, NUCLEAR REGULATORY COMMISSION g

wassemofon, p. c. aoses The Honorable Edward J. Markey, Chairman Subcommittee on Oversight and Investigations Connittee on Interior and Insular Affairs United States House of Representatives Washington, DC 20515

Dear Mr. Chairman:

My letter to you dated October 27, 1982, advised that we had issued a generic letter to all PWR licensees asking for the information you re-quested for your survey regarding economic and worker safety aspects of the steam generator tube degradation problem. Although we requested the utilities' responses by November 25, 1982, many of them are still in the process of gathering the requested information.

'In order to provide you with as many responses as possible prior to the scheduled hearing date of December 2, 1982, we have asked the utilities to telecopy their responses. As a consequence, the legibility of some of the responses is poor. Copies of their submittals that we have re-ceived to date are attached. We expect to receive additional responses within the next few weeks.

It is our intent to provide you with all these responses as soon as possible thereafter.

Sincerely, Carlton Kammerer, Director Office of Congressional Affairs

Enclosures:

As stated cc: Rep. Ron Marlenee 4

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I SUMARY OF PLANT 5 RESPONDING TO GENERIC LETTER NO. 82-22 RECE!VED TO DATE 4

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Response Summary to Generic Letter No. 82-22 The generic letter on steam generator tube integrity was sent to 51 units which are represented by 31 utilities, f Units

  1. Utilities-Full Responses 16 12 Partial Responses 12 9

Declined to Respond 14 5

No response received 9

7 '_

total 51

- *3 3 S

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  • VIPCO counted twice (Full response for North Annat Partial response i

for Surry)

MET. ED counted twice (Full response for TMI-I t No response for TMI-2) l 6

~

o, NUMBER OF PLANTS RE3PONDING TO GENERIC LETTER Responses to Steam Generator Integrity Letter of October 26, 1982 (Generic Letter No. 82-22)

Plant Utility

Response

Ferley 1 Farley.2 Alabama Power Co.

Declined

$8"***

[

Arkansas Poww a 1.isht Co.

Partial Response gj;,;g;;;;;

seiii-- Ces and ai-in. Co.

ceciin.d Robinson.2 Celina Power a Leht Co Partial Response Connecticut Yankee Connecticut Yanbee Atomic Power Co.

Partial Response Paliudes Consumers Power Co.

Full Response IMaan Point.2 Consolidated Edison Co. of New York. Inc.

f;j Commonwealth Edison Co Partial Response McCuire 1 Duke Power Co.

Declined Oconee 1 Oconee 2 Oconee 3 Buver Valley.1 Duqueene beht Co.

Full Response Crystal River.3 Flonda Power Corp.

Full desponse St. Lucte 1 Flonda Power a beht Co.

Declined Turkey Point.3 Turkey Point 4 C** 'j indiana a Michisan Electnc Co.

Full Response y,

Maia' Y*ab" Maine Yankee Atomic Power Co.

Partial ResponTe Three Mile leland.t MetmPolitan Edieon Co.

Full Response Three Male faland 2

  • (TMI2)

Indicates that response has not been received to date.

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Plant Utility

Response

Millstone 2 Northeast Utilities Partial Response r

st n Northem States Power Co.

Full Response Fort Calhoun 1 Omaha Pubhc Power Distnce Full Response u

Trolan Portland Ceneral Electnc Co.

Ful1 Response Indian Point 3 Power Authonty of the State of New York Full Response Salem l i

Salem 2 Public Service Electnc & Cas Co.

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Cinna Rochester Gas and Electnc Corp Rancho Seco 1 Sacramento Municipal Utility District Partial Response Summer South Carolina Public Service Authonty San Onofre t Southern California Edison Co.

Declined San Onofre 2 San Onofre 3 Sequoyah l Sequoyah 2 Tennessee Valley Authority Full Response E

_un

_2 Davis Dess'e l Tolebo Edison Co Q

North Anna 1 V6tginia Electric & Power Co Full Response for North Anna 2 North Anna Surry 1 Surry 2 Partial Response for Surry

-a Point Desch 1 Wisconsin Electric Power Co.

Point Beach 2

=ii Kewaunee W'$consin Public Service Corp.

Full Response Yankee Rowe Yankee Atomic Electric Co Partial Response 3

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-5 Indicates that response has not been received to date.

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Question: How many days of Unscheduled outages can be attributed to steam generator-related difficulties per year at your site?

Answer:

' 79

'80

'81

'82.

l Kewaunee 0

0 0

0 Palisades 0

0 0

0 Prairie Island 1 and 2 21 34 24 0

Ft. Calhoun 0

0 0

0 Beaver Valley 0

0 0

15 TMI-l 0

0 0

0

~

Trojan 43 0

13 0

Crystal River 0

0 0

0 North Anna 1 and 2 25.5 total Surry 1 and 2 26 total Does not include scheduled downtime to replace, steam generators.

Maine Yankee 0

0 0

0 Zion 1 and 2 0

0 0

0 Yankee Rowe 0

0 0

0 Haddam Neck 0

0 0

0 Millstone 0

0 0

0.

Sequoyah 1 and 2 11 0

Cook 1 0

0 0

0

":1:ook 2 0

0 28 17 H. B. Robinson average 3 weeks / year Arkansas 1 and 2 NA NA 0

16 Indian Point 3 6

0 54 NA NA - Information not presently available e

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ao Question:

During each of the years in question, how many steam generator I

tubes have been l

l Plugged in each steam generator?

Sleeved in each steam generator?

Answer:

l SGB

'79

'80

' 81

'82 l

Plug / Sleeve P/S P/S P/S l

Kewaunee A

--0/0 0/0 0/0 0/0 B

, 0/0 0/0 0/0 0/0 l

Palisades A

14/0 0/0 9/0' 2/0

-~

B 9/0 0/0 40/0 T70 4

Prairie Island 1 11 6/0 0/0 25/0 Incompl ete 12 0/0 1/0 2/0 Incomplete l

Priirie Island 2 21 0/0 3/0 4/0 15/0 l

22 0/0 15/0 38/0 12/0 ft. Calhoun All 0/0 0/0 0/0 0/0 Beaver Valley 1 All 0/0 0/0 0/,0 1/0 ecTHI-l All 3/0 1/0 0/0 S 300

% 900 (1983)

  • Note Trojan A

2/0 4/0 88/0 0/0 -

B 1/0 3/0 89/0 0/0 C

1/0 1/0 92/0 0/0 0

5/0 55/0 63/0 0/0 Crystal River 3 All 0/0 2/0 1/0 0/0 North Anna 1 and 2 All 284/0 0/0 0/0 0/0 Surry 1 and 2 All 26/0 90/0 0/0 0/ 0 -

Maine Yankee All 0/0 0/0 0/0 12/0 Zion 1 and 2 All some tubes plugged /none sleeved Yankee Rowe All 0/0 0/0 3/0 9/0 Haddam Neck All plugged maximum of 21 tubes /yr. per SG~~

no sleeving

  • Note: All 31,000 tubes are to be kinetically expanded in the upper

~

tube sheet to create a new mechanical joint below the damaged area.

This work is, expected to be completed by mid '83

c.:

SG#

'79

'80

' 81

'82 Plug / Sleeve P/S P/S P/S Millstone All plugged maximum of 429 tubes /SG since 1979.no sleeving 0/0' 0/0 i

Sequoyah 1 and 2 All D.C. Cook 1 1

0/0 10/0 0/0 0/0 I

2 0/0 0/0 0/0 10/0 3

0/0 0/0 0/0 10/0 4

0/0 10/0 0/0 0/0 D. C. Cook 2 1

0/0 6/0 7/0 g/0, 2

0/0 0/0 0/0 0/0 3

0/0 0/0 0/0 0/0 4

0/0 0/0 10/0 0/0 Arkansas 1 A

NA NA 7/0 10/0 B

NA NA 0/0 0/0 Arkansas 2 A

NA NA 0/0 1/0 B

NA NA 0/0 0/0 Indian Point 3 All 449/0 9/0 371 / 0 NA l

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NA - Information not presently available g&

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' Ocstion: What haya been the total costs.and specifically replacem:nt power costs associated with stram genarator maintenance, repair and replacement at your plant?

f Answer:

'79

'80

'81

'82 Comments K;waun'ee R0 0

0 0

M0 0

0 0

  • Note 1 Palisades R0 0

0 20,885,700 (49 days)

M 774,000 0

927,000 581.500 Prairie Island 1,560,000 3,888,000 2,786,000 1,141,000' Did not break down 1 and 2 costs l _,,,_F;rt Cal houn R0 0

,0 0

M0 100,000 90,000 0

f/S surveillance costs' ' only.

Beaver Valley R0 0

0 0

M0 0

0 270,000

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TMI-1 R0 0

0 0

12-13 million/mo.

if allowed to operate M0 0

0 35,000,000 Estircated final cost -

)jan R 30,126,000 0

5,253,000 0

Only represents j

M 937,000 857,000 2,062,000 0

PGE share of Trojan

{

plant

{

l Crystal River R0 0

0 0

M0 0

0

-0

  • No te.1 N3rth., Anna R0 0

0 0

1 and 2 M0 0

0 0

  • Note 1 Surry 1 and 2 123,000,000 63,000,000 84,000,000 NR Did not break down costs Zicn 1 and 2 R0 0

0 NR M NR NR NR NR Yankee Rowe R NR NR 50,000 125,000 Replacement power M NR' NR NR NR costs associated with scheduled shutdown -

Therefore no't reported Haddam Neck

' R NR NR NR NR

~

M approximately 1,000,000 per inspection Millstone 2 R NR NR NR NR M ' typically si,000,000/ inspection, 1,000,000 Sequoyah 1 5,860,000 0

Did not break down and 2 cdsts

  • Note: 1) Maintenance costs apparently do not reflect routine inspection and

,s tube' plugging costs

g...,,

'79

'80

-'81

'82 Commen ts -

sk 1 and 2 R0 0

0 0

M0 32,31 8 101,591 153,688 Arkansas R NA '

NA 0

4,282,964 1 and 2-

= M NA NA

.NR NR Indian Point 3 R 4,800,000 0

43,200,000 NA M

910,000 70,000-2,050,000 NA

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Replacement Power Costs Maintenance Costs a

'NR - Not Reported NA - Not presently available

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Question: What has been the total occupational radiation exposure (in

. person-rems) caused by steam generator?

Maintenance?

. Repair / Replacement?.

Answer:

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'79

'80

'81

'82

~

~

Kewaunee M 4.5 20.9 3.6 2.2 R

0 0

0

... 0 Palisades M 130 0

80 O

R 0

0 0

43.4 Prai rie.Isl and '

M 14.6 32 33 17.6 R

0 0

0 0

Fort Calhoun M

0 2.7 15.8 0

R 0

0 0

0 Beaver Valley M

0 0

0 0

R 0

0 0

0

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' TMI-l 25 18 154 Not broken dowr:

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Trojan M 41 46 139 15 R

0 0

0 0

' Crystal River 3 0

98.7 27.6 0

Not broken dow North Anna 1 and 2 M 71.1 10.2 0

0 R

0 0

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Surry 1 and 2 M NR

. NR NR NR R 2179 792 967 NR Maine Yankee Below industry average Yankee Rowe NR 3.8 21 36.2 Not broken dow Haddam Neck Average 122/ year; max. 263/ year Not broken dowi Millstcr.e.

Average 310/ year; max. 890/ year Not broken dom l Sequoyah 1 and 2 M-14.3 71. 9 R-0-

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'79

'80

'81'

'82 Cook 1 and 2 M 35.4 33

- 48. 5' 32.5.

R.0' 5.9 4.5 16.4

~

Robinson Average 215/ year Not broken down Arkansas 1 and 2 M NA NA N'A NA

~

R NA NA 51.1 52.7 Indian Point 3 M 50.7 4.4 0

NA

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R 84:4 10.8 206 NA; n:

I NR - Not reported

.'... - Not presently available M

Maintenance R - Repair G

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1" 06estion : What percentage of total annual employ e dose has been attributable i

to stea2 gensrator related work at your site (s)?

Ik Answer:

For most plants the steam generator dose represents about 10% to j

20% of total plant dose.

This number can increase -

dramatically for extensive S/G repairs (e.g., TMI-1)

. j.

~

'79

'80

' 81

'82

~

Kewaunee 4.0 9.4 2.4 2.3 Palisades 10 0

10 10 Prairie Is..

9.5 16.3-17.9 Inc.

Currently in 1982 1 and 2 refueling outage

[- ~ Ft. Calhoun 0

0.4 3.5 0

~

Beaver Valley 0

0 0

4 TMI-l 3

11 60 Trojan 17.8 11.9 26:0 4~.1 Crystal River.

0 17 5

0 N. Anna 1, 2 29 5

0 0

.iaddam,tek Maximum 24% during any one year.

Mill stone Maximum 63% during any one year.

Segmyah 1,2 14.9 23.9 Cook 1, 2 5.3 8.6 8.8 11.5 Robinson Averag,e 22%/ year Indian Pt 3 20 5

57 NA NA - Not presently available e

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Outstion:

During tha years in questien, h w many workers have received 3

i mea:;ureable radiation doses for steam generator related work?

What' percentage of the total workforce do these workers represent?

Answer: Workers receiving doses range from 15 to over 300..The percent of those working who receive doses are generally.

less-than 20% although some go higher.

'79

'80

' 81

'82 Kewaunee

  1. 27 47 30 15

% 55 8.8%

3.4%

2.3%

. Palisades

  1. 1 /28 0

195 91

% 9.4%

0 10.5%

6.4%

Prsfrie Island f 60 110 90 NA In current refueling

-~

% 5.5%

7.1%

6.7%

NA Fort Calhoun f0 15 28 0

%0 1.4%

2.9%

0 Beaver.yalley i0 0

0 153

%0 0

0 7"

?

TMI-1 152 244 i

~

10%

28%

Tro.ian

  1. 200 211 317 78

"'~

% 17%

12.2%

10.0%

7.3%

Crystal River

_# 0 159 55 0

%0 9.2%

2.7%

0 North Anna 1 and 2

  1. 337 2 31 0

0

% 23%

10%

0 0

-Yankee Rowe

- # NA 15 50 78

% NA

.8%.

2.4%

6%

Sequoyah 1 and 2 h-134 200 8.9%

7.6%

Cook 1 and 2

  1. 167 260 295 271

% 17.5%

32.9%

32.9%

15.4%'

Robinson f

Average 286/ year Average 32%/ year Arkansas 1 and 2

  1. NA NA 133 128

% NA NA NA NA Indian Point 3

  1. 163 66 245 NA

% 14%

5%

22%

NA

.i -

f - Total number people receiving doses.

% - Percent of people receiving doses.

NA - Not' presently available. _

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Question: How many temporary workers (defin2d by the NRC as all workers other than those hired directly by' nuclear power plants on a conventional, long-term hasis) received doses from steam generator-related work at your facility each year?

Answer: The rang 2 varies between less than 10 to over 250.

'79

'80

'81

'82.

Kewaunee 26 43 17 14 Palisades 96 0

99 28

' Prairie Island 50 100 80 NA Still in refueling outage

~

~

~

Fort Calhoun 0

5 12 0

Beaver Valley 0

0 0

83 62 189 TMI-l Trojan-1 31 194 269 54

- Crystal River 0

109 40 0

North Anna 1 and 2 175 208 0

0 YankerRowe Approximately 91 tempcrary workers during '80

'81, and 82.

32 38

.. Sequoyah 1 and 2 Cook 1 and 2 115 198 21 8 -

218 Robinson Average 219/ year

. Arkansas 1 and 2 NA NA

~54 61 Contractor personnel Indian Point 3 109(est) 33 167 NA NA - Not presently available G

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Question: What percentage of:- total worke:s involved with steam generator-related work do temporary workers represent? total workforce

_ do temporary workers represent?

Answer: Temporary workers represent about 50 to 90% of the workforce for S/G related work.

For other work, they generally compose a smaller percentage.

Temporary workers typically represent from 5 to 90% of the overall workforce. '

~

'79

'80

' 81

'82 Kewaunee

% S/G 96 91 85 91

- % Tot 63 64 81 52

% S/G 51 0

51 31 Palisades

% Tot 4.85

'O 5.3 2'. 0 Prairie ' Island

% S/G 83 90 90 NA

% Tot 15 15 15 15 Fort Calhoun

% S/G 0

40 40 0

. Tot 0

25 25 10 Beaver Valley

% S/G 0

0 0

54

% To t '

O O

0-

' 72 41 TMI-l

% S/G 78 ee-

% Tot-Trojan

' % S/G 65.5 91.9 84.9 70.1

% Tot 60.6 67.3 62.9 53.4 Crystal River

% S/G 0

68 63

'O

% Tot 0

6.3 1.9 0

North Anna 1,2

% S/G 52 90 0

0

% Tot 37 57 61 0

Surry 1 and 2

% S/G _

iNR NR NR NR

% Tot 84 82 76 NR

^

Zion 1 and 2

% S/G Average 80%/ year

% Tot Average 63%/ year Yankee Rowe

% 2/G 64%/ year

% Tot NA

-Sequoyah'1,2

% S/G 23.8 19.0 1.0 0.6

% Tot Cook 1 and 2

% S/G 68.9 76.2 73.9 80.4

% Tot 73.8 72.7.

72.5 _

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'79

'80-

'81

'82 Robinson

% S/G Average 76%/ year

% Tot Average 73%/ year Arkansas 1, 2 :

2 S/G NA NA 41 48

% Tat NA NA NA NA Indian Point 3

% S/G 68 50 68 NA

- % To t 86 83 76 NA

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% S/G'- % temporary workers on S/G related work

% Tot - % temporary workers for entire workforce

i Question: Has your co pany used independent firms to find temporary employees who have received an occupational dose from steam generator-related work?

Answer: Utilities seem split on this.

F

'79

'80

'81

'82 Kewaunee NO NO NO NO Palisades NO NO NO NO Praf rie Island YES YES YES YES s --

Fort Calhoun NO YES YES NO Beaver Valley NO NO NO YES TMI-l N0' NO NO NO Trojan YES YES YES YES Crystal River NO NO NO NO North Anna 1 and 2 YES YES NA NA.

Surry 1 and 2 YES YES YES YES

^

ZION _1 and 2 YES Sequoyah 1 and 2 NO NO Cook 1 and 2 NO NO NO NO Robinson NO NO NO NO

[

Arkansas 1 and 2 NA NA NO NO Indian Point 3 NO NO NO NA I

3 NA - Information not presently available or not reported

Question:' Do you anticipate major steam generator n! pairs in any of your units in the next' five years, and if so how much would these repairs cost? Please specify.

Answer: Of the plants responding, two plants are planning major steam generator repairs.

This does not include other plants where majo.r repairs are undenray or have been comple ted.

H. B. Robinson 2.

Replacement

$100,000,000.

Indian Point 3 Sleeving 19,000,000.

and Plugging performed during current optage.

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' SECTION VIII PRELIMINARY RESPONSES TO REP MARKEY'S SURVEY 4

1.

Generic Letter and listing of plants responding.to date.

2.. In previous responses to the Markey sub-Committee, Udall's Committee, and the thion of Concerned Scientists, it was indicated that a -

number of questions would be included in.the 45-day task force re-po rt.

Are those questions answered in that report?

~

3.

How many days of unscheduled outages can be attributed to steam generator-related difficulties per year at your site?

4.

During eac'h of the years in question, how many steam generator tubes have been; plugged in each steam generator? and sleeved in each steam generator?

f-5.

What have been the total costs and specifically replacement power costs associated with steam generator maintenance, repair and E

replacement at your plant?

- 6.

What has been.the total occupational radiation exposure (in person-rems) caused by steam generator; maintenance? and repair /

w.

replacement?

7.. What percentage of total annual employee dose has been attributable to steam generator related work at your site (s)?

i 1

j.

8.

During the years in question, How many workers have received measureable radiation doses for steam generator related work? and what percentage of the total workforce do these workers represent?

~

9.

How many temporary rarkers (defined by the NRC as all workers other than those hired directly by nuclear power plants on a conventional, i

long-term basis) received doses from steam generator-related work at your facility each year?

10. What percentage of total workers involved with steam generator-related work do temporary workers represent? and the total workforce do temporary workers represent?
11. Has your company used independent firms to find temporary employees who have received an occupational dose from steam generator-related work?
12. Do you anticipate major steam generator repairs in any of your uniis in -

th. next five years, and if so how much would these repairs cost, please speci fy.

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,,_,..,,,,.... -. _ _. -,,. _ _ _..- _ ~-,_,--,,. _., - -., -, _ - _ - _ _._

. MUCLEAR REGUL ATORY COMMI5510iv 1 GENERATOR - RELATE 3

-QUESTIONNAIRE 1 *MNA U.4IT5 1 AND 2 1979 198v 14M1 19P2 laky DAYS'QF uNSCHEDULES QUTAGED C AN EE

[8UTED 70 STEA4 GENERATCR. RELATED ICULTIES PER YEAA AT YQUt 51TE7 8 <===== 25.5====*>

'4G EACM 0F THE YEAR 5 IN WUESTION, HQW MANY

.4 GENERATOR TueE5 MAVE SiEN PLJGGED IN EACH STiAM oENERATOR7 1 2 84 1 0

1 I

O 5LEEVE0 IN EACH STCAM GENCKATCR7 I

C 1

0 t

O I

3 NAVE SEEN THE TOTAL Ca5 T5 AND SPFCIFICALLY ACbMENT POdER COSTS ASSOCIATEC w!TH STEA4

.tATOR MAINTENANCE. REPAIR A".O REPLACEMENT QUR PLANTT l

C 1

e i

0 1

0

=

MAS bEEN THE TOTAL QCCuPATIONAL RADIATION SURE flN PE850.V - Rt.is ! C AL'5 ED S Y.5 TE AM '

4ATCA MAINTENANCET 171 14l10 161 0

t O

R EPo !R/ RiF L AC E ME NT 7 i

O I

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l C.

I O

PCCCENTAGE OF TOTAL AN*1JAL EMPLOYEE DOSE mai LIBUTAeLE TO STEAM GENERATCR RELATED ho#A Oc

$1Ti(537 1 29 I

5 I

C I

C kG T4E YEAAS It4 aus5T13%

~~~~~~~~~~~~~~~~~~~~~~~

MJ. MA'4 Y nORKiR5 HAVE RECEIVEO MEASU#EASLE RADIATION cc5ES Fuk STEAM GENE 4ATOR R E LA TED W3kK7 I 337 I 231 I C

1 O

tHS T PCMC ENT AGE OF THE TOT A L - OEKFORC E 70 n

THESE WQ4KERS diPAE5ENT7 1

23 8 10 t c

1 0

--..____.____..________.-__.--_.-.e--_a._----..__

TEMPOAARY aORAERS (OFFINED SY THE N4C 1 A NY

..L WOkAERS OTHE?. TMAsd TH35i HIRED DIRECT 6Y JCLEAR PJaER PLANTS ON A C OtrYE NT I ON A L.

-T ERM SASI53 RECEIV60 DOSES PROM STEA*

(ATGA-MELATED 40tK AT f0JR FACILITY EACM i

l 175 1 20d I c

i

?

PE5CENTA5E OF 370L WOAMERS INVOLVEa WI

'I STEAW GENERATOR IL ATED d3RK 03 TEMPORARY WORKERS P EPRESE 4T7 1 52 1

90 I l

9

$5 TUTAL WURKFORCE 00 TEMPORARY WOdKERS iPCESENTT I 3T I

ST I 61 I o

_ _ _ _ _ ~ _ - - - - - - - - _ _

'O COMPA*1Y USED INDEPENOEUT FIRMS TO FI NO 25 EMPL3YfEh ww0 MAVE RECEIVED AN OCCJ-INo. 035E PRJM STEAM GENGRATOR mELATED h0 R A 71 YES I YES I I

)U AseTICIPATs MAJOR STia-4 GENEAATOR REPa1R5 IN ANY OF YCUR UNITS IN 4 EXT. FIVE YE ARS e AND IF 50 HOW MvCM WCulv THE SE REP AIR 5 CCST.

it SPECIFY.

NO

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7 m....................................................................

i So MUCLEAR REGUL ATORY COMMISSION

!." GENERAT04 - MEL ATE 0 - QUES TIONN AIRE L

INI T S 1 AN0 2

=--..

1979 1980 1981 1832 MANY DAYS OF UNSCHEOJLES OUTAGES CAN:- - -----..... ----------

~~-

=

EE

' *RIBUTED TO STE AM GENER ATOR - RELA TE0 4

2FICULTIES PER YEAM AT YuuA SITE 7 I

<a======

2e.t

=====.)

=. - ---- _.

(I NC E ACM QF TnE YEARS IN JUi5 TION, HOw MAvY IAM GENERATOR TudE5 HAVE '!EN c

PLOGufD IN CACM STEAM GENE 4ATOR7 4 26 1 1C l

0 l

C ELEEVED Its EACH STEAN JENERATOR7 l

0 I

O I

O l

O i

j rbT HAVE SEEN THF TOTAL CUSTS AND_-------.--- ---.--. ------.- -

l SPECIF IC AL(Y i >LcC EMENT POWER COSTS ASSOCIATED WITH S T E A v.

.'4h R AT 04 MA INT EN A *4C L, REPA!R AhD REPLACEMENT YOUR PL ANT 7 (FIGUAE5 IN MILLIONS OF DOLLA'S) I 123 1 63 1 8A i

w j 5T HA5 M it THE lOYI OCCUPAY50 5 U 5DiITYO E~~

~

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

NSURE IIN PEkSCM - REMS ) CAUSED BY STEAM 4RATUR MAINTENANCE 7 l

l' 1

l REPAIR / REPLACEMENT 7 12179 l_ 792 1 967 l 17 4CEqTAGE OF TCTAL ANSVAL EMPLOYEE 005= HAS

=-

5 -eT4IhuT46LE TO STE4" GENERATOR RELATED nODA YOUR SITE t s) ?

I l

l I

.1ING THE YEARS I4 JUESTIuN L

HJW MANY WORMER 5 HAVE Rf C EIVED. ME ASURE ASLE RoDIATIQN DOSE 5 FOR STEAM GENEaAT3R R E LA TE D WORK 7 I

l I

EaIPiICIEIIGE OF IEi~T3YAL7 3iiEIORC IO6~ ~ ~~~~~ ~ ~ ~ ~ ~ ~~

THESE WORKER 5 REPRESENT?

I l

l l

= _ _

r MANY TEMPOAARY WORKERS (GEFINEO av TMF NAC

=-----

4 ALL WORKERS QTHER THAN THJ5E HIRED DIRECTL Y

,'MOCLEAR POWER PLANT 5 ON A CONVENTIONAL,

' i*-TERM oa$159 RECEIVdD 005C5 FR0m STEAM i

ERATQ4-RELATE 3 WOAK AT Y30A FACILITY EACH P. ?

I I

I e

i e

i T PEACENTA6E OF TOTAL W3REERS INVOLVED w!TM STEAM GENERATJR DELATED WOAK 00 TEMPORARY WOPKER5 REPRESE'4T7 l l

1 l

  • ~

j TME TOTAL WO8KFJRCE 00 TEMPORARY WORKERS RECRESENT7 I e4 1 d2 1 T6 I

. = -

u, COMPANY USED INDEPENDEP.T PIMMS TO FINO 1 P O*.r4 Y EMPLOYEE 5 WMO MAVE RECEIVED AN OCCU-

, 10NAL DOSE FROM STEAM GE.NERATOR #ELATEC WO R A t t YES 1.YE5 1 YCS l YES i

YOU ANTIC 18 ATE MAJOR STAAM GENFR A TOR R EP AIRS I N ANY CF YOUR UNITS IN 4E NEXT F1VE Y F AAS, ANC.IF SC HJW "uCH WO.LJ TM&5C AkPAIRS CO5T,

.YO

g e e

.s c eWTM w\\t c006A LETTE6 O

e

=

e O e

e e

e e

h i

5 6

P 9

m r,

U. S. NUCLEAR REGULATORY COMMISSION Approved by OMS 3150 0092 STEAM GENERATOR-RELATED - QUESTIONNAIRE SILO M CM R M 1, 2.

RESPONSE BY YEAR 1979 1980 1981 1982 HOW MANY DAYS OF UNSCHEDULES OUTAGES CAN BE ATTRIBUTED TO

/0.0 0

STEAM GENERATOR-RELATED DIFFICULTIES PER YEAR AT YOUR SITE 7 DURING EACH OF THE YEARS IN QUESTION, HOW MANY STEAM GENERATOR TUBES HAVE BEEN O

O PLUGGED IN EACH STEAM GENERATORf SLEEVED IN EACH STEAM GENERATOR 7 0

C WHAT HAVE BEEN THE TOTAL COSTS AND SPECIFICALLY REPLACEMENT POWER COSTS ASSOCIATED WITH STEAM GENERATOR MAINTINANCE, f' y 4

-O REPAIR AND REPLACEMENT AT YOUR PLANT 7 A4 WHAT HAS BEEN THE TOTAL OCCUPATIONAL RADIATION EXPOSURE (IN PERSON-REMS) CAUSED BY STEAM GENERATOR MAINTENANCE?

/ 81, 3 7 l.T J REPAIR / REPLACEMENT?-

O C

WHAT PERCENTAGE OF TOTAL ANNUAL EMPLOYEE DOSE HAS BEEN ATTRIBUTABLE TO STEAM GENERATOR RELATED WORK AT YOUR SITE (S)?

/ 4,7 A3d DURING THE YEARS IN QUESTION S-HOW MANY WORKERS HAVE RECEIVED MEASUREABLE RADIATION DOSES:

134

WHAT PERCENTAGE OF THE TOTAL WORKFORCE 00 THESE WORKERS REPRESENT?

I'1 7' 4 n0W MANY TEMPORARY WORKERS (cefined by the NRC as all workers other than those hired directly by nuclear power plants on a conventional, long-tem basis) RECEIVED DOSES FROM STEAM 3Q 3 Tr*

GENERATOR-RELATED WORK AT YOUR FACILITY EACH YEAR?

WHAT PERCENTAGE OF TOTAL WORKERS INVOLVED WITH STEAM GENERATOR-RELATED WORK 13,i

/y,c DO TEMPORARY WORKERS. REPRESENT 7 THE TOTAL WORKFORCE C0 TEMPORARY WORKERS REPRESENT?

/'O

d. [a HAS YOUR COMPANY USED INDEPENDENT FIRMS TO FIND TEMPORARY EMPLOYEES WHO HAVE RECEIVED AN OCCUPATIONAL DOSE FROM STEAM No Ng GENEPATOR-RELATED WORK?

00 YOU ANTICIPATE MAJOR STEAM GENERATOR REPAIRS IN ANY OF YOUR UNITS IN THE NEXT FIVE YEARS, AND IF So HOW MUCH WOULD THESE REPAIRS COST, PLEASE SPECIFY.

'S h G\\*S NO b 4L e T' I

A d i e, g.

e d i 5 Mk

. a pm W., s 1.

~

,o P

O

~;. :... = r. n,. y y

s l.

s y,

r g

g b:-$tutes Posser Osmpany o

~

lia teesert teus

/

n -_ an onesi hiestime-9000

$vember ils (N2 i

Director Of fice of Wuclear Reactor Regulation U $ Weelear Regulatory Commission Washington, DC 20555 g

)RA!AIE IS1AND NUCLEA% CENERATINC yIdirr Docket Nos. $0-232 License Noe. DPR-Al

$0-306 flPA-&O Reply to Request for Information om steam Cenerator Take -

~

Intearfty (Cenerie Letter so. 42-22)

Your letter to us dated October 16,1982. " Congressional Request for infor-metipa Concerning Steam Cenesator Tebe Integrity fCeneric tetter No. 42-22)"

g requested answers to questione generated by Mr E J Markey, Chairman of the Congressional Subcommittee on Oversight and faves*tigatione. Our anavers to these questions are tabulated by year on the attached table. The questione r

ipere anevered as accurately At possible using the records that more availabla to us.

Please contact es il you have any, questioni concerning the Laformation tan lie,*

subettted.

s I

6 Devid *tusolf Manager - Nwelear suppo servlee&

[

i e

i D.et/SAr/bd cet Regiona3 Admin-fII, WRC r...;.

flRt Project Manager, RC e.3 NRC Resident laspector i.

.x E

C Charnoff E

w i

g Attachment

<-- h s /s Dn im O ^ l &/ O mfg e

,s e

~

y,,3,, %

rurax is1 Ann secuam erneomma naar - setYs 1 & 1.

1

5. $. NUCLEAR REGULATORY COMM15530R Approved by We 3150 0092 STEM CENERATOR-RELATED - OutSTIORMAIRC 1

}

RESPORSE_SY TEAR 1571 1950 Ital Isar j

I*

MOW MARY 04T5 0F UNSCHEDULES OUTAGES CM 4E ATTRISUTED 10 STEAR GENERATOR-RELATED DIFFICULTIES PER TEAR AT fouR SITEt 21 N-14I3) fN 1&

DUR c=ING CACH OF THE YEARS IN QUESTIOR. JWW luut? $ TEM $/C 11 4

,4 il S/AhI}

1.

== mes un nun Rg g,

g g

9

),

j PLDGGED lt EACM STENn GENERATORf

/C 22 0

15 38 12 SLEEVED IN EACM STEM GENERATOR?

a.

n b

h A

15 TAT NAVE SEER INE TOTAL CO5T5 ANO 5PECIFICALLY REPLAcEnENT (la 104 0 dell ars)

POWER COSTS ASSOCIATED WITN STEAM GERERATOR MAINTERANCE.

REPAIR AND REPLACEMENT AT YOUR PLANT?

1.M0 3.888, E.7p 1, W 3

unAT MA5 BEEN THE TOTAL OCCUPATI0"M. RADIATIWI EXPO 5URE (IN--

PERSON-REMS) CAUSED 87 STIAM GENERATOR MAINTENANCE?

I A

  • b '"

32 888 33 88" I70 REPAIR /REPLACEMNT?

O 6

0 6

WMAT PERCENTAGE OF TOTAL ANNUAL EMPLOYEE,005E NAS SEEN ATTRIEUTAttE 70 STEAN GENERATOR RELATED W0tt AT YOUR 51TE(5)?

9.5%

16.1T 17.9f i

. AIRING THE Tera 5 JN QUESTIOR U_A(3) 3.

7 HOW MANY WORKERS MAVE RECEIVED EASUREARLE RADIATIOR 195ES.

i FOR STEAM SENERATOR RELATED WORK 7 60(&)- 110(t) 90(4)

N/A(1) udAT PERCENTAGE OF THE TOTAL WOREFDRE W THE5E WORKEE5 REPRESENT?

3.$E 7.1%

6.7t R/A(1)

"UW NY TEf'.PCdART WORKER 5 (defined by the ERC as all morters other than these hired directly by nuclear power plants en A conventional, long-tem bests) RECE!YED 00$E5 FROM STEAM GDERATOR-RELATED vott AT YOUR FACILITY EACM YEAa?

g4y g4)

$0 100 00gg)

N/A(g) 9 WMAT PERCENTAGE OF TOTAL WORKERS INVOLTED WITH STEAM GENERATOR-RELATED WORK 00 TEF.PORARY WORKERS REPRESENT 7

~

837 tof GM N/A(g)

THE TOTat W0ttr0 ACE 00 TEMPORAkY WORKERS REPRESENT?

ASI ISI III 331 10 MAS TCUR CDt'.PANY USED INDEPENDENT Filots TO F130 TE.9P0AARf EP.PLOTEES WHO MAYE RECEIYED AN OCCUPAT!.0NAL DOSE FROM STEM T D EP.ATOR.rELATED 00RK7 Tes Yes Yes Tee 3

AND IF 50 WW.aniCM WOULD THESE REPA!R5 COST 30 TOU A IME *EIT F37E REARS.

. PLEASE SPECIFT.

i (1)

This' data is not available since L'ait i 1982 refueling outage is not comp 1'ete.

l (2)

This exposure was the amount received by personnel working on the steam generators for Unit 2 during 1982.

J (3) includes the days a refueling outage was extended else to problems discovered with the steam generator durina the outase.

4 (4) These numbers are approximate.'

M b

g......

~ ~

L__

au n dru YANKEE ATOMIC MLECTRIC COMP 4hfY

~ ~ "

shrr =====: nose. h.a, mend Aos.eee,ue. ore orror

. f.. m.

s

.eit.d.tesee.

2em.

1ste., ee ie.i Waehamsten.

D.

C.

20353 At tene sen e Str. Demmie 14. Crutehfield. Chied Operettaa beactore Bramah No. 3 i

i Divistem of L isemm iums Refereneees (e) 1.4eemme No. DPR-$ (DeEkst ko. IO-29)

(b) camac Lee, tar to All Liceneees. dated Osteher 26 1982 (e)

USMRC Letter to YABC, dated April 12 1982 subject 4 hequest kor 2nformation sa Atomes comerater Tube Ema'agrity Deer' Sir The Taehme P2ent hem a 22-yeer operetAma record aimar1y Andamataans me 4,pyreetable problem in the eram of steen generater tube integ ra ty.

In respemes to the request in Referesase (b), the fo11ewsms Aufen,eetten le provided.

1.

For the peers roguested (1979-1982) there were me naamm senesrater=

reisted diff$emittee awffletent to emesse en uneehedemled e nsa ng e.

The sessinal atene generaterm rema&n operassanal wtth an excellene perfereernee record, and we amasetpete me major es:eman sonorator repaire daartog the mest f1we years.

A.

The htetery en steen Semerator tube plugatag le dessammented la Rafereense (e).

We e t ous geenerater innepeetione were performed de 1979 For 1980 1981 a.d 19a2, the total amenber of tubes pitsesed were O.

3 and 9 respectively.

To date. 2eee them 22 of the seeml noseber of steen generator tubes have been plaagged (125 eut of 4,440 total mesh

.).

we tubes how, been sleeved.

3.

steen semerator maintenance and hesbe Amepeettom to merme117 performed durame e refueltas weasse.

The metal egese seeecasted with asshe plussins occurring in atel mood 1982 were mypressmately

$50.000 esed $125.000 rompeestvely.

Replas semen t power eeste era ameestered with the sebeduled senestdeern end. therefore, not included.

4.

Two wwwyesa.tweesi empveurar e Cia pe r e ***-rees ) ter etsam assierster tube l

inspeettene amme passestas for 1980 1981 eund 1982 are 3.4*,

21, send 3e.13 respeettvely.

\\

i 1

i s

"4,.....*.

.v.

- ^

s lh.d eed States trimmiser Amesuia.tery dommissied kevesnber 29, 1982 Attamalmet 3er. Deesaae M. Crunamhfamad Fase 2

-).

The totaal unamber o# workere receivies meeeurable radiattom deoes for eteen generator Ameyesties and tube piusat=a few 1980 1981. e=d 1

1982 were 15. 50 and 78 zeepeettwgly, repensemains 0 82 2 43, and I

GE et the total works f orce.f or these years.

s a mty-reear percent

  • l C643) of th ee workmen eveo, performed the steen senerator sammy.esd ees.

and tube pausstas repres wted temporary er eeritrac tor workare.

Ve trust this Amferammelen eetteftee your requeet.

l

-Wery kruly youre, l

FAMMEE ATCet1C RLECTRIC COMPANY cm X9

s. x. u, senser zustoeer'- Liammesme

.fAE'Jdd l

1 1

.e e

--..--a

-- -d[ *~ h UNITED STATES

~'

NUCLEAR REGULATORY COMMISSION wasemicrow, p. c. rosos October 26, 1982 3

TO ALL PRESSURIZED POWER REACTOR LICENSEES Gentlemen:

SUBJECT:

CONGRESSIONAL REQUEST FOR INFORMATION CONCERNING STEAM GENERATOR TUBE INTEGRITY (GENERIC LETTER NO. 82-22)

. Representative Edward J. Markey, Chairman of the Subcommittee on Over-sight and Investigation has, by letter dated October 19, 1982, requested that the NRC submit questions to utilities regarding steam generator tube

~ integrity._ His letter, copy enclosed, specifically identifies the 1nformation requested.

In order to obtain answers to these questions before Congressional haarings on this subject tentatively Jcheduled for December 2,1982, it would be most helpful if the answers were mailed to NRC no later

~

~than November 25, 1982. Please let us know your plans concerning this request.

This request for information was approved by the Office of. Management

& Budget under clearance number 3150-0092 which expires November 30, 1982.

incerely.

b W

?)] Dil?

I ' 3.

une.mirector Division of Licensing Office of Nuclear Reactor Regulation I

Enclosure:

As Stated 4

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