ML20126F112

Occupational Radiation Exposure at Light Water Cooled Power REACTORS,1969-1975

ML20126F112
Person / Time
Issue date:	08/31/1976
From:	Bland J, Dayem N, Murphy T Office of Nuclear Reactor Regulation
To:
References
NUREG-0109, NUREG-109, NUDOCS 8103060792
Download: ML20126F112 (28)

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a OCCUPATIONAL RADIATION EXPOSURE r

AT LIGHT WATER COOLED POWER REACTORS i

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i Thomas D. Murphy Nadia J. Dryem l

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J. Stewart Bland 4

Walter J. Pasciak

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Date Published: August 1976

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Radiologica! Assessmerit Brsr.ch i

Environmental Evaluation Branch l

U.S. Nuclear F,egulatory Commission Washinson, D.C. 20555

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BILLIOGA APH4C D ATA

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3. aepo,i o.ie

.7e a 19 6 occt'patienal RafiAtten Exposure at Light Estar Cooled Power Roacrot3 1959-1975 r,

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8. Performing Orgsaazainoo Rept.

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7. Petrovains organ 4:,rtion Nasme and Aedness

10. Prosect/ Task /Wo.k Unas No.

Offica of ::ucicar Reactor Regulation i t. co.a.ci/ceani No.

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U.S. Nuclear Regulatory Cocumission d

Vaahington, D. C.

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12. Spomaostas Organsasinon Name sad Addseso

13. Type el Report a Period co,ered j

Office of Pucisar Raactor Regulation

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'A Ab*uact*j This' report presents an updated ocapilation of occupational radiation expo-I i

sures at coranercial light water cooled power reactors for the years 1969 through 1975.

J Tho information is derived from raports submitted to the United States Nuclear Rsgula-tory Co:anission in accordance with requirements of individual plant Technical Specifi-e4tions and Part 20.407 of Title 10, Chapter 1, code of Federal Regulations 1

(10 C71 Part 20.407).

The MAN-REM / UNIT for all I.ER's in 1975 is greater than the 1974 value. The cu:ralative average since 1969 continues to increase. No significs at trend was q

indicated over the period of 1969-1975 in the nean value of MAN-R:.M/MEGAWATI-YEAR.

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This report presents an updated comellation of occupational

Jg radiation exposures at commercial light water cooled powe n

p reactors (LWR's) for the years 1969 through 1975. The informa-g,.

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tion is derived from reports submitted to the United States h*

Nuclear Regulatory Commission in accordrice with requirments of

-1 pg individual plant Technical Specifications and Part 20.407 of n[

Title 10 Chapter 1. Code of Federal Regulations (10 CFR Part 20.407).

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tj The collective dose to personnel (man-rems per reactor year) at t<

<p uiR's in 1975 ws greater than in 1974 The average nueer of 5 ;

personnel receiving measurable exposure per reactor has increased t,i F

in 1975 and the average exposure per individual has remained at 0.8 v

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.!j rem per person per year.

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t CONTENTS

.1

,i PAGE i

A85 TRACT.............................................................

i 7'

INTR 000CT!0N.........................................................

1 SOURCE OF DATA......................................................

2 l

MAN-REM PER REACTOR PER YEAR.........................................

3 t

i l

EXPOSURE TO INDIVIDUALS..............................................

6 EXPOSURE BY WORK FUNCTION............................................

B TABLES 1.

MAN-REM SUWARY....................

5 2.

AVEPAGE OCUPATIONAL RADIATION EXPOSURE PER INDIVIDUAL...........

6 3.

SUMMARY

OF ANNUAL WHOLE BODY EXPOSURES BY INCREMENT-LWR's.......

7 1

4 OVEREXPOSURES AT COMMERCIAL POWER REACTORS......................

8 5.

TABULATION OF NUMBER OF PERSONNEL AND MAN-REM BY WORK FUNCTION..

9 6.

PERCENTAGES OF PERSONMEL AND EXPOSURE BY WORK FUNCTION (1975)...

10 i

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FIGURE j

1.

FREQUENCY DISTRIBUTION (MAN-REM / REACTOR / YEAR FOR LWR's FROM 1969-1975)....................................................

4 APPENDIX A - PERSONNEL, EXPOSURE AND PCWER GENERATION

SUMMARY

11 APPENDIX B - LICENSED h"JCLEAR PCWER FACILITIES 10 CFR 20.407 DATA....

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~hj OCCUPATIONAL RADIATION EXPOSURES AT

- i' ' '

1 O LIGHT W.TER COOLED PCWER REACTORS l

1969 - 1975

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INTRODUCTION y

?

This report contains a compilation of the occupational radiation t

exposures at light water nuclear power reactors for ths years 1%9-J 1975. It is an updating c7 the infomation contained in WASH-13111

}j and NUREG-75/032,1 >:hich provided data through 1974. Datt. frem plants L

that were in comercial operation for a full year for the first time

'lj in 1975 have been added. We have also included the data submitted to J

the USNRC for all power reactors in accordance with the requirements j

of 10 CFR Part 20.407.

,g For the first time, this report contains data on overexposures at

]

nuclear power plants for the years 1971-1075.

3 4 Murphy T.D., A Compilation of Occupational Radiation Exposures from Light 1 ater Cooled Nuclear Power Plants 1969-1973 USAEC, WASH-1311, 4

May 1974 2 Murphy, T.D., Hinson, C.S., Cccupational Radiation Exposures at Light j

Water Cooled Nuclear Power Reactors, 1959-1974 USNRC,NUREG-75/032, i

June 1975.

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SOURCE OF DATA l:g d.

The occupational radiation exposure data through 1973 used in this report

j.,Jj for light water reactors (LWR's) in operation during the perlod 1969 J.

through 1973 were obtained as a result of inquiries r.ade to each reactor i

licensee. The 1974 and 1975 data for all plants were obtained from two sources,1) reports submitted to the USNRC to meet the requirements of 10 4

J CFR Part 20.407; and 2) annual, sewiar.aual or monthly operating reports st bmitted in accordance with individual station Technical Specifications.

J Approximately twenty five percent of the licensees submitted infomation 1

in accordance with Regulatory Guide 1.16. Rev. 4, Reporting of Operating Information - Appendix A Technical Specifications. These reports are availableinpublicdocumentrooms(PCR)locatedneareachlicensedplant or in the U.S. Nuclear Regulatory Cocriission's Pub'.ic Document Room at 1717 H Street, Washington, D.C.

i The teminology man-rem is a unit of collective dose and, as used in this report, is the accumulation of the occupational radiation exposures of all individuals at the plant site including utility station personnel, other utility personnel brought in on a temporary basis, contractor personnel Ond visitors. For this report this accumulatten r,f exposure is deternis.ed by either of the following e,ethods:

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. Approximately one half of the licensees submitted.the sunsaatton 1.

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A f.of the actual exposures of all of the individuals at their fs i 4)~

-' : site.'

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For the remaining licensees we determined the accumulated

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f exposures by summing the product of the numbers of individuals

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,m in each annual exposure range specified i'i 10 CFR Part 20.407 D

1 b(2)bythemidpointexposureineachrange.

Oj p.1 F.n.

7 !

In both cases the resulting accumulated exposure is expressed in man-u,9 r#

rems. Where a caparison could be made, the two methods yielded a number A

e.

p;c of man-rems which were within fifteen perce'nt of each other.

.1

!.-1, 1

x. i

5. 4 MAfi-REM PER RFACTOR PER YEAR

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Appendix A presents the total annual man-rem received at each LWR power k

station for each year 1969-1975. If there is more than one reactor at each if}/

station, the data in Appendix A is the total for all units. The average "y.

exposure per reactor per year for all LWR's, also categorized by pressurized p

-p F'

water reactor and boiling water reactor, is presented in Tables la, Ib, and a

'o Ic. For those stations which have multiple reactors, the total exposure 4

for the station is arbitrarily divided by tre number of reactors at the i

.,j station to get the average exposures for each reactor at that station, j

z The frequency distribution for the exposures cf the reactors at each I

.}

6 a

2 station for the years 1969-1975 is plotted in Figure 1.

It indicates a i

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haber Ct.pacity Man-Aem/

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Reactors (WWe)

. Reactor-Year

( g;. r l'.',.3, f-1969 7

267 178 7

a,.-

1970 10 362 365 m

1971 13 401 294 J.1 s

j 1972 18 472 364

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1973 26 546 534 i

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1974 32 581 427 F-

_4 1975 44 640 457

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HH5URITEP WArti RE ACIGR5

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Avers 9e Tserly l

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thmber ka ted Avers 9e t-d l

p of Capacity An.Ran/

s F,J Reactors (NWel Peartor. Veer 5,..,

e-J 1969 4

381 163 la$

1970 8

403 599 im 5g :

1971 6

459 340 i*

.ei 1972 8

500 463

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s2 1973 12 57 5 772 f,b 1974 18 625 364

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[s 1975 26 650 309 C-(~

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R eseton (wwel 8 ee c tor-Vaa r of Cacactty man.Rau/

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1969 3

116 195 l

l 1970 5

322 130 se l

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1971 7

351 255

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1972 10 450 286 l

1973 14 521 330 l

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1 1974 14 5J1 507 i

1975 18 626 670 i

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median of approximately 270 man-rems per reactor per year for 1975. The q

numbe.r of man-rems per reactor per year for pressurized water reactors shows a drop from the 1974 value. For boiling water reactors, the number f

of man-rems per reactor per year increased.

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[.'-

EXPOSURE TO INDIVIDUALS i

t In 1975 an average of 578 persons per reactor received measurable ex-posure. This number has increased froin the 1974 value of 515. The average exposure per individual was 0.8 rem in 1975.

s s

TABLE 2 AVERAGE OCCUPATIONAL RADIATION EXPOSURE PER INDIVIOUAL Average Exposure Average Nuniber of Personnel Year.

Per Individual (rems)

Per Reacter 1969 1.1*

141 l

1970 1.0 305 1971 1.0 302 1972 1.2 344 1v73 0.9 584 197a 0.8 51 3 19.'6 0.8 578 table ; is a sumary of t'.e nucer of annual whole body exposures for LWR's in c':h exposu. t 5,ement cf 10 CFR Part 20.407 b(2) f ar the years o

i 1969 through 19'5. The total nutroer of personnel receiving more than one x

rem exposure in 1975 increased frys 1974. The n' ember of persons receiving o

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c 2sh' 4t s i J.*' TABLE 3 -

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'51Jt94ARY OF ANNUAL' not0LE 80DY EXPOSURES BY INCREMENT - LWR'

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cp (For those Personns) atitcensee 5thtfons' included In AppeNix A) fff.,

. ;i.. - ).+ -

J'h.,

' Mumber of Individuals' 2

1 Exposure increment - rems

' Iri '<

.$i i r,j,(

j Total Not 0-1 1-2 2-3 3-4 4-5 5-6 6-7.7-8 8-9; 9-10. 10-11 11 Year Monitored Measurable

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1969 2836 2607' 144 70 26 5

2 0

0 0 - 0 0

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1970 7513 6953 184.175 92. 102 ^ 11

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1 1971 10,245 9660 328 146 107 17 11 0

0, 0 0

0 j

l 1972 15,713 14,783 536 205 114 47 23. 10 6.

6 0

0 7j

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H 1973 35,918 20,717 10,249 2449 1585 432 237 117 71 38 16 7

0' 0

2 0

0 0

0 1

1974 32,955 16.475 12.079 2348 1313 437 21 0 76 25 t, ),i 1-l 1975 45,659 20,188 18,277 3891 1903 707 426 169 60 - 24 12 0

• 1 0

3 Brooks, 5.G., Seventh Ar.nual Occupational Radiation Exposut e Report 1974, USNRC,

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7

,H 9

NUREG-75/lu8, November 1975.

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exposures in excess of the limits established by 10 CFR part 20 at cohoercial L,

[

reactors are reported for the years 1971 throu9h 1975 in Tabl s 4.

This data shows that most of the exposures only slightly exceeded the cuarterly limits r.1 g;j

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and that the total number of overexposures is a very small fraction of

'j

[9O the number of persons monitored for radiation exposure at comercial l

l

.t i

s reactors.

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TABLE,4

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h. DWEREIPOSURES.AT C391ERCIAL P0hlER REACTCRS h

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Naber of Repo-ts T.

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5'."..;;

'> Maher of

. ' idhole Body.

ishole Body.

of Exposure to

. y"A i

.:6 '.-- Overexposures to man-res Maximus Excessive concentration Maxisus

'.- Year-- Extemal Radietton - involved Exo. (rems) of Radioactive Materis1 Exposure <3l p, ' ;1

)-

4.5

'3.1 21

' 6.052 rs= i-.

r.

- 197.1,

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e

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1972 16 49.7 5.1 2

2C00 WC hr c,

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1973 19 61.2 4.0 0

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1

. i i l 1974 43 155.9 6.1 12 433 WC-hr 1

1975 14 44.2 3.2 7

13.5 runs r

(tung)

+

-s i

EXPOSURE BY WCRK FLHCTION O

. 1 t '

'4 Table 5 presents data on personnel and radiation exposure categorized in six work fur.ctions. This inferr.ation only accounts for approxicately one half of the total exposure received at LWR's during 1975 because not all s

1-licensees sutznitted the information in a format adequate to cate:orize the exposure by w rk function. Routine reactor operations and survell-

?

lance accounts for approximately 21even percent of the exposure, down slightly from fourteen percent in 1974. Routine and special caintenance ccatinue to account fcr apprcxtrately seventy percent of the expcsure at l

i czneer.ial reactors. The percentage of personnel associated with sxcific I

t work functions and the exposure for each work function is presented in Table 6.

Utility e-ployees account for approxinately 41 percent of the nur.ber cf personnel and approxi ately $4 percent of the exoccure.

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TABULATION OF NUMBER OF PE350NNEL AND MAN-REM BY I

WORK FUNCTION (1975)

'ft h.?;.

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NUMBER OF EMPLOYEE 5 {>100 millirem /yr)

};j.

a q

p"'

Contract l

Work Station Utility Workers Functinn Employees Emleyees and Others Total q

~

'l Reactor Operations 1105 81 143 1329 ooutine Maintenance 2118 198 6330 8646 iN i: o

['. '

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Inservice Inspection 250 99 251 600 i

Special Maintenance 752 429 1204 2385 E,..-

Q.

Waste Processing 520 63 58 1104 s

Refueling 306 10 156 472 TOTALS 5051 880 8605 14536 l

eh 1

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b.

TOTAL MAN-REM C

Contract F-i K;

Work Station Utility Workers f'

Function Employees _

Employees and Others

Total,

)

C D

Reactor Operations 1136 13 60 1209

?

Routine Maintenance 2134 267 3466 5867

~

Inservice Inspection 60 63 207 330 1

1 Special Maintenance 705 423 999 2127

}

Waste Processing 635 19 120 774 1

I l

4 t

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Refueling 449 127 289 365 i

1 TOTALS 5119 912 5141 11172 I

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~',i TABLE 6

.w PIRCIhTAGE5 0F PER$0NM!t AND EXPOSURE 8Y WOMt FUNCTI0li (1975)

' i.

se,,,,

.<i th i.~. 5 "t m.n Persennel Exposges

..,y. 4,g e,

(,, *yl work Function Uttitty contractor Total Uttitty COntFOCt$f

• Total 10'.'J I -

r Reetter Operattms and 8.2 1.0 9.2 ;

10.3 0.5 :

I.,'l~[e surveillance i

3 acuttne mentenance 16.0 43.5 59.5 :

21.5 31.1 52.6

• d

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-o i

y1. s Inservice Inspection 2.4 1.7 4.1 1.2 1.8 3.0

./,3 o

5pecial mintenance 8.1 8.2 16.3 10.1 8.9 19.0 e

ii' C "5

W ste Processing 4//

3.6 7.6 5.8 1.1 6.9

• y

'A Refueling 23 1.0 3.3 5.1 y

R

. *j TOTAL 4s 51 100 54 46 100

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f"O APPEN0lt A

.',1 ggj ttP050RE. PERSONNEL AND POWit CthERATION SIMt4RT s.:O

). -s,.

Hege-Avere9e 1

'/,

watt PtR50mwrt AnnuAt stue-Rot tapesure istW-hD8

'jy

. c.

year Stet per per

{yj'y,(

Reportia1 0rganlaation Year (MW-VR)

Totai

.[onteggy,r3fTiry Tetai Os+ ret W iisinteaance contrector utvistr eersea ses-vt 6

ARGNMS I 15 588.0 147 46 0.31 of f.V4, Dmiet 50-313. DPR-51 0.I.

lit tonewrcial aperation 8/74 Type - PWR

.g ! 1 Capac 6ty - 850 MWe t

• h

• \\

BIG ROCE P0tti 69 43.2 165 136 0.42 3.1 I ',

1 Outet 50-155. DPR.6 70 43.5 290 194 0.67 4.5

' -j,'

Itt corinercial operation J/63 FI 44.4 260 IS4 0.7 4.5

. i ine - BwR 72 43.5 195 ISI 0.92 4.1 Caracity - il MWe 73 50.9 119 336 1 981 196 2.8 6.8 e

g

-tm 1 74 40.7 281 276 Ig 222 42 2 34 0.98 4.6

"",j 75 35.1 216 300 54 122 20 160 0.83 5.1

. *'a

', s

(

tnuwM's FERRY I 75 32a.9 2380 32 5 0.14 1.0 f

• 1,1 lbchet *0.*59. DPR.33 fit cors ertial operation 8/74

/pl twe - twa

L Capacity. 10w's MWe l

.f 1

[\\J HAtwo raca 49 397.6 338 75 63 106 27 79 0.77

.5 tuket ic-21). Orn-68 70 474.7 734 657 77 689 443 226 0.94 1.7

' g i,' -

1st terwrcist operation I/68 74 502.2 289 216 73 342 366 176 1.14

.8 r*+

Type - PWR 72 515.6 355 285 70 325 ISI I44

.93

.7 i

Capacity - 575 MWe 73 293.1 841 770 71 673 525 144 0.00 2.1 f*

74 519.1 550 201 0.37

.4

..i 75 494.3 795 569 19 450 0.84 1.4

., "e W t owl R ".J

• hwt 75 456.4 175 71 104 96 25 71 16 NB 0.55 0.2

[p r/'s Disnet 53-198. DPR-46 t

1st (sesvrtial operation 7/74 type - Swa

'y (Spatity - Ild MWe p,.,a

,. [$

't2 (

u 41

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't I

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t

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= +-

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?gt n

1 89 s..

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- - -=,..

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watt P(R50emt(

$s6tsual tutte.atse gasosure 8thl.Spl year

}

_acrorttat organtration

_ Veee (44.1k) total Centratter Utillts Tote)

Oserettent IGIntenence Centracter Iftflf ty serton 86f-VR l ~' l 6

ape por pee b.e 4

Ditf 5ttN 1. 2. 3 49 89.4 286

{

Oc:tet $0-10. 50-237. 50-249 70 304.9 143 3.2

'.. y~

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t*t-10.19. 25 71 394.5 Fil

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...T J

Ist comerctal operatton 7/60 72 1243.7 725

. 333 574 0.e4

.8 1.8 W

6/72. 11/74 73 1812.2 1341 909 138 771

.6

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Tyve. twa 74 842.5 1594 318 1776 1662 57 1405 3.04 2.0 Caractty MWE 200. 809, 809 75 708 l 3674 3076 595 3209 254 2955 2111 1093 0.87 4.5

. a f os.f ( At :ent::e 75 252.3 M9 3e9 100 294 93 205 0.63 4.2 tig l

tW6et 50 265, DrR.40

• ~ ' d Ist oneercial operetten 6/74 l

I lype. PWe j

tapacity. 457 sede

,,i f.thm4 70 268.5 174 56 114 207 94 113 15 192 1.21 ~

.8 t

4.

Dxtet 50 244. DPA-18 FI 377.8 340 134 206 430 69 368 100 322

1. 24.-

1.3 q

4 ltt u.seettel operattom 3/70 72 295.6 677 2H 4tl 1012 il Mt 278 754

%.52 3.4 t epe - M a 73 409.5 til 244 60 184 91 153 9.58

.8 E.

.,c (as:acity. 490 lese 74 253.7 884 12r4 1.38 4.8 75 365.2 fSe 496

,.I i

8.59 1.4 teetam pt BAv 69 40.4 125 el 84 164 69 94 12 M2 1.3%

4.0

{

tu ma t W IJ), let 7 70 49.3 115 35 80 209 DO

. 174 65 227

. 2. 5 7.7

,,[. m 1st oms =eeclat operatten t/63 71 09.6 140 53 87 2!!

114

.s 79 37 172 f.81 4.3 type. 9d4 72 43.1 127 54 73 253 81 172 57 896 3.99 5.9

,f-,' s 4

Capacity. 65 MWe 73 50.5 235 264 59 202 l.11 6.3

/

74 43.4 296 221 75 314 103 215 1.07 1.1 75 45.3 303 230 73 332 lie 204 lit dit 1.10 7.3 th0lAN rotat 1. 2 69 IS).3

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t 298

-,,i De<6et %-3. 50-247. D?A-5. 26 70 43.3 1639 I.4

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l 1st twarettel operetton 10/62.

71 154.0 764 33.8 M;a'33 e/73 72 142.3 967 5.9 lege. the 73 0

2994 5134 692 #

4442 P774 2354

.l.7%

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Capastty. 265 pale. 873 esse 74 556.1 1919 114 905 910 t #*d 0.89 1.6 l,

M 5a4.4 480 73 407 626 147 479 42 884 3.J I.I

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year Reporttaq Organtration tear DW-TR)

Total Contractor Utility Total Operations Malatenance Contractor Utility person 14d-TE i

EtWAthEE 75 401.9 54 23 41 25 1

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j Docket 50-305. DPR-43 Type - FWR 4 '.3 '. y ist couvrcial operation 6/74 Capacity - 500 MWe

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tACR055E 71 33.1 218 158 0.72 5.0 E%

Dodet 50-409. Dt'R-45 72 29.2 151 172 1.13 5.9

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-"g' 1st camercial operetton 9/69 73 24.4 157 221 I.48 9.8 Type - 1"JR 74 37.9 115 21 94 139 89 70 6

133 1.25 3.7 Capacity - 50 MWe 75 22.0 165 234

.l.42 7.3 l*~

MAINE YAwfE 73 408.7 422 309 113 121 61 6C 0.29

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t. I'f A IkKhet 50 20). DrR-36 74 4 32.6 620 485 135 420 64 356 188 232 0.68 1.0

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Ist correrclat operation 12/72 75 142.9 577 418 159 347 16 3 31 197 150 0.60 0.6 type - Ivn O

Capa: Sty - 79C tWe e

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Mllt!IOr.L POINT 1 72 377.6 612 487 125 596 50 546 340 256 0.97 1.6 Detket 50-245. DFR-21 73 225.1 1152 982 170 620 117 503 395 225 0.54 2.7 1st cowrcial operation 3/71 74 430.3 2477 1430 0.58 3.3 Type - E,6.a 75 465.4 2587 2022 0.78 4.3 Capacity - 690 IWe

. qi i

PGdTICEl to 12 424.4 99 9

90 61 40 21 1

60 0.61

.I Draket 50-363. Dpa-22 73 389.5 276 145 131 1 54 42 112 59 95 0.56

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1st couvertial operation 7/71 74 349.3 842 477 365 349 91 258 0.41 1.0

-;c Ippe - BWR 75 344.8 1353 1353 1.0 3.9 ftr

- #-4 Capacity - 545 MWe

. sn i NINE Mitt POINT 70 227.0 821 660 161 44 12 32 17 27 0.05

.2 f'

Docket 50-220. DPR-63 71 J46.5 1006 738 268 195 43 152 63 89 0.19

.6

a..,,;; M' '

Ist coerercial operation 12/69 72 381.8 735 450 285 285 59

- 226

. 28

- 198 0.38

.8 M*

Type - BWR 73 411.0 550 318 232 517 127 390 108 409 0.94 1.3 Capacity - 61t,MWe 74 385.9 740 463 277 824 42 782 279 545 I.13 2.3

k. ',IT i

75 359.0 649 329 320 l 681 68 613 203 47s 1.04 1.9 Mv Y

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( d,, Averagej Rege- [ap0$urt g fl4N-RDI , f' .,b;. 4 watt PER50NNft, -AMilUAL MAN.R(98 l t *J,.;l RLM per y per year L peporttag organtration Ye.- (N-YR) Total contractor utt16ty Total Operations Maintenance Contractor Utility person r lei-TR ,g. ( M.cq d .7-. 7y i OCONEE 1. 2. 3 74 724.3 844 253 591 517 18 499 144-373' O.61 ASQ Docket 50 269. 270. 287 75 1838.3 541 112 429 457 66 391 ' 83 3,4 0.t4 F? .3 2,.7.1-.,, OstP-38. 47, 55

• ;.h 1st ccrorrcial operetton 7/73.

qn 9/74. 12/74 p ~- Type - PER 1 }'f,q I Capact:y - 886. 636, 886 W e

• ..y

I '.

U151ER CRItK 69 40.1 -dd Lkxhet 50 219. DPR-16 70 413.5 95 32 63 63 21 42 11 62 0.66 .2

i ist coanercial operation 12/69 71 448.9 249 164 85 240 50 190 92 144 0.96

.5 ~,4, t[j h pe - swr 72 515.0 339 242 97 582 150 432-167 415 1.71 1.1 Cap. city - 653 MWe 73 424.6 782 635 147 1236 195 104? ' 683: 553 1.58 2.9 f.A YD, 74 434.5 935 346 589 984 166 818 162. 822 1.05 2.3.' e '..,; ;S.FEl. 75 373.E 1210 1832 16b 964 269 863 0.94-3.0 r a. } F At 15A0[5 72 216.8 78 , ' 647 462 1.23 3.8 G,y cottrt 50 255. OPR-20 73 286.8 901 608 293 1809 16 1093 O.01 to 5 ht twwrcial operetton 12/71 74 10.6 774 627 g'. i Type - EER 75 300.2 474 292 0.62 0.97 J' .. I 8 - (apacity - 82% MWe ? )1 y. Docket 50-277, 278. OPR 44. 56 4, f ;" l 11RCH B0110H 2. 3 75 1234.3 971 228 0.24 0.18 Ist conmlat operatton 12/14 gj g' y-Type - BelR Capacity - 1065.1005 We f 1.b . sy, a l. 1.4 '.2 L mr." FILCRint 73 484.0 53 74 29 45 D' 0.91 . 1. 8 5- ' - d Doc 6ct 50-293. DPR.35 74 234.1 454 415 s360 1.6 2.4 Ist conrmlal operetton 12/72 75 308.1 473 744 532 612 384 Type - BWR "i'. tapacity - 655 N e .. _"O 6 e q e g Y a

• 4

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"*~~"'""O 'I _T_- 1,.' a - t ' v L v. n % otan - cu.-2 wC; 21-i ~ M 'l I' ^ "'" ' "= =a " ^ r* f '- * -'~ _ Fp f s.-$. I L.. ). y', / 4 n.; k,. [h ! S,e,e ' b .i 4 Sege- ~ Swerage ~ <J y wit PER50trett MINUAl. MM-8EM 3 Esposure MM-RIM f" Fear REN ces per Reporting Organfration Year (N-TR) Total Contractor Utility Total Operations Malntenance Contracter Utility person ped-T 4 Pl d 8~;d PolNT 8tACM i & 2 72 378.3 580 ' l.5 + Docket 50-266. 301. DPR.24. 27 73 693.7 729 570 70 5c3 0.78 .8 ist comerttal cperetteri 12/70. 74 760.2 400 295 70 225 81 214 0.74 .4 4 L 4/73 75 801.2 339 456 1.3 0.6 V.h type - rWR . 81 Cag.acity - 497 We, 497 Ne i ' * *[ A .12 1 -n'et PMIRIE 15Lno 1. 2 74 181.9 150 56 94 la 5 13 0 Cochet 50-282. 306. DPR-42, 60 75 836.0 4 77 123 0.26 0.16 - * * :j s lst cerercial operation 12/73. 12/74 N T pc - PWR. FWR 3Caswcity - 530 mt. 530 s'-

• ..., i

~ QoAO ClilE5 1 6 2 73 1209.6 533 201 ~28 173 59 142 0.37 .2 g Doc net 50-254, 265. Dra-29, 30 73 9!,8.1 678 488 193 482 36 .446 0.71 .5 ..1 1st cor=wecial Operation 2/73 75 833.6 1972 1418 554 1385 98 1287 $92 793 0.70 1.7 J ?.' !" h 3/73 jf. ' [' Type - 8WR Capacity - 809 We, ta19 Ne n' RO8th',0M 71 295.3 283 242 41 364 7 357 351 13 1.28 - 3.2 ei Ducset 50-261. DPR-23 72 580.0 245 147 98 215 42 173 137 78 0.87 .4

• ..s 1st cow rcial operation 3/71 73 455.1 831 695 0.83 1.5 J

-s 1 pe - PWR 74 578.1 853 672 181 487 0.78 1.2 ?;. 3 Capacity - 707 MWe 75 501.8 849 1142 1.35 2.3 .c j 4 le 58L10'40FRE 1 69 289.8 123 32 91 42 10 32 5 37 0.34 .2 4 ,f'if.0 Doctet 5't-205. DPR-13 70 365.9 251 92 159 155 13 142 59 96 0.El .4 lst comercial operation 1/63 71 362.1 121 12 109 50 '2 38 3 47 0.41 .1 % ".,h Type - PWt 72 372.2 326 141 185 256 29 227 187 139 ' O.M .7 Capacity - 450 MWe 73 273.7 878 547 331 329 37 292 157 172 0.37 1.2 1 l [*, 219 71 0.32 .2 71 377.sl424 fQ 369.0 292 0.75 0.7 75 3#MEfl Q.g; .. c F s.,.... < ,f,~ ?qs. Vy . t.t );' ^. ', .+N..q., GI n b

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/.' s M iege watt Pta50setEt ArJUAL MNI-aE14 Imposers IMpi-SDI

/-f, pega-IEII per per !ttporting Organtratton Year (MW-va) Total Contractor uttitty fotsi operations Maintenance Ce9trector tittlity serson I8f-YS .* ', i. ' year c.16 .2 ' N s-Suuv i 6 i 73 823.4 936 152 Dodet 53-280. 281. DPR-32. 37 74 717.4 1715 884 72 812 0.52 1.2 's'.j 1st corwrcial operation 12/12 75 1079.7 808 1549 25 1524 1000 549 1.91 1.5 aJ i.4ij 5/73 ". :...y g Type - FWR Capacity - 123 MWe. 823 MWe I! E M THREE Mitt 15tANO I F5 675.9 168 83 21 62 0.49 0.1 4,e Docket 50-7C9. DrR-50 Ist correr(lai operetton 9/74 1., d type - PWR Capacity - 819 MWe . 1 0.18 .1 ?.3 TURctY P0ttil 3 6 4 73 565.9 444 78 Cutet 50-250. 251. DF4-31. 41 74 966.4 794 454 88 366 .32 12 0.57 .5 Ist coerercial operatto,12/12. 15 1003.7 1175 M5 270 605 558 317 0.74 0.87 i (( 5 Type - PWR ,1,. :h 9/73 Capacity - 745 MWe 0.35 4 / .) j V(liMUNI IAMit 73 222.1 244 85 Dodet 50-211. DrR-28 74 303.5 357 216 28 192 101 113 0.61 .7 1st comercial operation 11/7' 75 429.0 247 164 83 139 'e 75 57 32 0.56 .3 i Type - lHdR a" Capacity - 514 MWe V AN1t E DMit 69 123.1 193 117 ' 76 215 46 169 78 91 1.1 1.8 [Ii Dodet 50-29. OPR-3 10 146.1 355 280 75 255 50 195 98 97 0.71 1.4 -( i Ist comercial operation 7/61 71 173.5 155 60 95 90 44 46 19 71 0.58 .5 r Type - PWR 72 78.7 282 210 12 255 60 195 147 100 0.90 3.2 a tapacity - 175 MWe 73 127.1 263 158 105 146 70 74 0.56 1.1 i ~. ') 74 111.3 243 149 . < 94 205 99 106 0.84 1.8 75 145.1 210 1 34 76 13e 62 76 78 60 9.66 1.0 t \\ ?.J M l 't y(I 210PI 1. 2 74 425.3 306 87' 219 54 13 41 0.18 .2 Dodet 50-295. 304. DrR-39. 48 75 1181.5 1433 938 495 117 16 101 45 . 72 .08 0.1 n- [Nisj Ist cotartctat operation 12/73 9/74 ) i. q.. t , ;. '.j Type - Pwit Capacity - 1050 MWe i. f -*:

• ,s

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• j' l

t DPR.16 R. E. Gfnna 151 127 93 93 68 74 206 20 4 836 p*, j Drp-15 Pantsades 149 204 70 $1 36 29 57 38 9 1 644 DPR-20 .'.a Millstone 1. 2 908 686 629 354 212 99 317 130 70 48 22 10 7 3 3.495 Q $.. i* ^ DPR's-zt. 65 ..rt Monticello 434 246 140 228 124 92 369 79 '37 25 7 4 2 1.787 ! O 4: T DPR.22

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a.

Plant Name and No Measurable Measurable 0.10-0.25-0.50-0.75-1.0-2.0 3.C-4.0-S.6-6.0-7.0 8.0-9.0 TOTM ' i i License ho. Exposure <100 0.25 0.50 0.75 1.0 2.0 3.0

• 9 5.0 6.0 7.0 8.0 -

9.0 10.0 .. s i m, <hi i-L Iton I, 2 1.160 147 118 98 35 26 12 1.696 i -f a s.f;%d DPR's-39. 48 i s y,m ~P^ ( Tt. talhoun 153 192 63 54 26 20 73 34 7 622' i : DPR 40 v. ?.fM.) ]' e'ratrie ! stand 1. 2 2he 316 57 33 17 14 38 2 '711~ J'O.r:4 4, '.T ; DrR-42 6 247 Ci ' l f Kewaunee 143 55 18 16 6 2. 5 1 1%,. ! Ora.43 t ,,,g [ teCrosse 60 40 20 17 4 5 25 23 19 12 ' i 225. <,-. 'j fQ i $; c *y DUt-45 Y.; p k OTR-46 e ' 964., 'J'.'.Q' & VC ; Cooper 5tation 407 404 73 40 23 12 23 4 Q E Doane Ascold 1.409 105 75 24 8 6 5 1.632 Js4 4 + 'prq era-19 l 4 4u s k. b, j k. Drd's-5. 26 l.635 '-[ .-Q; Indtan Point 1, 2 744 330 141 88 57 53 110 49 29 27 7 y.w i i

• kh 131 Three Mlle Island C'

0* 0* 78 ?! 15 6 1 - a tr et d DFR-50 .Ndd e 6J5 rf4 4.1 f-A. kansas 1 488 87 44 8 5 3 igp,p DFR-51 /N? ., a. :.J %g..w o d not rero,i tim e,er,. ei not ceou.. to.e ..e,e.. ggi h..., y:.W (.I i a 4 .~4, m..,, 1 .. e - i. . g '.,'. ((,,. + ?# ^Jsl 5 ', i- ,f a** $a.y. -. '.>. :. ;, j / [:# j ? '{' t 3 t .y. l

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