Final Report YIOW IISUB-77145706 September 1977

REVIEW OF PROPOSED FORMATS FOR SAFETY ANALYSIS REPORTS FOR RADIOACTIVE WASTE

REPOSITORIES IN DEEP GEOLOGIC FORMATIONS

This report was prepared by Envirosphere Company, EBASCO Services, Incorporated under subcontract 62Y45706V with Union Carbide Corporation, Nuclear Division, under contract number W-7405-Eng-26 wirh rhe Ertergy Research and Development Administration. The subcontract was administered by the Office of Waste Isolation.

(a envirosphere company -

A DIVISION O F EBASCO SERVICES INCORPORATED

DISCLAIMER

This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency Thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

DISCLAIMER

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FINAL REPORT

REVIEW OF PROPOSED FORMATS FOR SAFETY ANALYSIS REPORTS FOR RADIOACTIVE WASTE REPOSITORIES I N DEEP GEOLOGIC FORMATIONS

SEPTEMBER 1977

NOTICE

Prepared By

Th i s r e p o r t w a s prepared a s a n account of work sponsored by t h e United S t a t e s Government. Nei ther t h e United S t a t e s nor t h e Energy Research and Development Adminis t ra t ion , nor any of t h e i r employees, makes any warran ty , exp re s s o r i m - p l i e d , o r assumes any l e g a l l i a b i l i t y o r r e s p o n s i b i l i t y f o r the accuracy , completeness or i i se fu lness of any informat ion , appa ra tu s , product o r p rocess d i s c l o s e d , o r r e p r e s e n t s t h a t i t s use would no t i n f r i n g e p r i v a t e l y owned r i g h t s .

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REVIEW O F PROPOSED FORMATS FOR SAFETY ANALYSIS REPORTS FOR RADIOACTIVE WASTE R E P O S I T O R I E S I N DEEP GEOLOGIC FORMATIONS

TABLE O F CONTENTS

P a g e

L I S T O F FIGURES ...................................................... ii L I S T O F TABLES. . . ................................................... ,iii FOREWARD. ............................................................ i v

....................................................... I. BACKGROUND 1

11. OBJECTIVE. ........................................................ 2

111. SUMMARY.. ......................................................... 3

. . ................................ I V . REVIEW O F PROPOSED SAR OUTLINES. 4

............................... A . F o r m a t a n d C o n t e n t . O v e r v i e w . . 4

....................... B. D e t a i l e d SAR O u t l i n e R e v i e w C o m m e n t s . . 7

.......................................... V. SAR SCHEDULE GUIDANCE.. 16 . .

................. . V I SUGGESTIONS FOR ADDITIONAL SAR SUPFORT EFFORTS. . 24

LIST OF FIGURES

P a g e

.................................... FIGURE 1 OVERALL SAR SCHEDULE 17

............................... FIGURE 2 PSAR DEVELOPMENT SCHEDULE 19

.................. FIGURE 3 SAR CHAPTER PREPARATION SEQUENCE LOGIC 20

L I S T OF TABLES

p e k e

....................... TABLE 1 FORMAT AND CONTENT OVERVIEW SUMMARY 6

TABLE 2 RECOMMENDED OUTLINE FOR SAR CHAPTER 5 .................... 1 2

TABLE 3 RECOMMENDED OUTLINE FOR SAR CHAPTER 6 .................... 1 3

....................... TABLE 4 TENTATIVE LICENSING SCHEDULE INPUT 18

FOREWORD

Th i s r e p o r t was prepared under a subcon t r ac t wi th Union Carbide Corpora t ion , Nuclear D iv i s ion , a United S t a t e s Energy Research and Development Administra- t i o n (ERDA) c o n t r a c t o r . This subcon t r ac t was adminis te red by the O f f i c e of Waste I s o l a t i o n (OWI) , program manager f o r t h e Nat iona l Waste Terminal S torage (NWTS) Program. The p r i n c i p a l o b j e c t i v e of t he NWTS Program is t o provide f a c i l i t i e s i n v a r i o u s deep geologic formations a t m u l t i p l e l o c a t i o n s i n , t h e United S t a t e s t h a t w i l l s a f e l y d ispose of t he r a d i o a c t i v e waste genera ted by commercial ope ra t ions and t h a t must be d e l i v e r e d t o a f e d e r a l r e p o s i t o r y f o r t e rmina l s to rage . These f e d e r a l r e p o s i t o r i e s w i l l be l i c e n s e d by the Nuclear Regulatory Connnission (NRC).

The NRC g e n e r a l l y r e q u i r e s t h a t a s a f e t y a n a l y s i s r e p o r t be prepared by the a p p l i c a n t f o r a l i c e n s e f o r a major f a c i l i t y t h a t i s a p a r t o f t h e nuc lea r f u e l cyc l e . ERDA a l s o r e q u i r e s s a f e t y a n a l y s i s r e p o r t s (SARs) t o be prepared f o r a l l new nuc lea r f a c i l i t i e s cons t ruc t ed under i t s programs. Nei ther ERDA nor NRC has developed g u i d e l i n e s f o r the c o n t e n t s of SARs f o r f e d e r a l waste r e p o s i t o r i e s . Therefore , OW1 has i n i t i a t e d t h i s p r o j e c t t o review e x i s t i n g f o m t g u i d e l i n e s i n l i g h t of e s t a b l i s h e d nuc lea r l i c e n s i n g exper ience and knowledge of c u r r e n t NRC r e g u l a t i o n s , t o sugges t con ten t s f o r a n SAR, and t o provide a schedule f o r the development of an SAR f o r a , f e d e r a l r e p o s i t o r y . This r e p o r t presen. ts t h e independent sugges t ions of t he subcon t r ac to r , .

Envirosphere Company, r e t a i n e d f o r t h a t purpose. The assumptions, views, and conclus ions expressed i n t h i s document a r e those of t h e . a u t h o r s and a r e no t t o be i n t e r p r e t e d a s those of Union .Carbide Corpora t i d n , Nuclear D iv i s ion , o r of ERDA.

I. BACKGROUND

A t p r e s e n t , f e d e r a l r e g u l a t i o n s and requirements f o r t he l i c e n s i n g o r approval of a waste r e p o s i t o r y f a c i l i t y do not e x i s t . It i s a n t i c i p a t e d t h a t i n t h e f u t u r e , P a r t 60 of T i t l e 10 of the Code of Federa l Regulat ions (10CFR60) w i l l be developed .and w i l l c o n t a i n requirements f o r a waste r e p o s i t o r y comparable t o those of 10CFR50 f o r nuc lea r power p l a n t s , i nc lud ing Genera 1 Design C r i t e r i a , (10CFR50, Appendix A) .

' It i s prudent t o assume t h a t , p r i o r t o t he c o n s t r u c t i o n of a waste repos- i t o r y f a c i l i t y , t h e ERDA w i l l be, r equ i r ed t o submit an SAR t o the Nuclear Regulatory Commission (NRC). A s wi th SAR's f o r o t h e r nuc lea r f a c i l i t i e s , t h i s r e p o r t must d e t a i l the c h a r a c t e r i s t i c s of t h e proposed f a c i l i t y and of the proposed s i t e a r e a , and d e s c r i b e t h e p o t e n t i a l f o r s a f e t y - r e l a t e d i n t e r a c t i o n s between t h e f a c i l i t y and s i t e . Since t h e NRC has not y e t i s sued a format guide f o r the p r e p a r a t i o n of such a r e p o r t , OW1 has proceeded independent ly wi th t h e development of a n o u t l i n e which w i l l s e rve a s t he b a s i s f o r t he ERDA des ign and f a c i l i t y l i c e n s i n g a c t i v i t i e s .

The N R C ' s l i c e n s i n g procedures f o r nuc lea r power p l a n t s and o t h e r produc- t i o n and u t i l i z a t i o n f a c i l i t i e s a s s o c i a t e d w i t h t h e nuc lea r f u e l cyc l e g e n e r a l l y r e q u i r e the t a Pre l iminary S a f e t y Analys is Report (PSAR) be submitted t o NRC by t h e a p p l i c a n t f o r a c o n s t r u c t i o n permit and t h a t a F i n a l S a f e t y Ana lys i s Report (FSAR) be submit ted by the a p p l i c a n t f o r a n ope ra t ing l i c e n s e . Th i s PSAR-FSAR terminology has been r e t a i n e d through- ou t t h i s r e p o r t .

Under s e p a r a t e subcon t r ac t s the S tanford Research I n s t i t u t e (SRI) and .

B a t t e l l e Memorial I n s t i t u t e .(BMI) have prepared d r a f t o u t l i n e s - f o r a waste r e p o s i t o r y f a c i l i t y SAR. These two proposed SAR format o u t l i n e s form the i n i t i a l b a s i s f o r t h i s s tudy.

11. OBJECTIVE

The o v e r a l l o b j e c t i v e of t h i s s tudy was t o provide l i c e n s i n g engineer ing guidance t o the Of f i ce of Waste I s o l a t i o n towards the development of a waste r e p o s i t o r y f a c i l i t y . S p e c i f i c a l l y , t he o b j e c t i v e s of our s tudy were . to:

1. Review and develop comments on two proposed SAR format o u t l i n e s i n l i g h t of p a s t nuc lea r l i c e n s i n g experience and c u r r e n t U.S. Nuclear Regulatory Conrmiss i on Regulatory Guides. The documents reviewed were "Proposed O u t l i n e of S a f e t y Analys is Report f o r F a c i l i t i e s f o r Geologic I s o l a t i o n of Radioact ive Wastes ," Y/OWI/SUB-77122320, June 1977, by S tanford Research I n s t i t u t e , and "Proposed Out l ine f o r a Sa fe ty Analys is Report f o r -8 Radioact ive Waste Reposi tory," Y/OWI/SUB- 76/7253/1, May 1977 by B a t t e l l e Memorial I n s t i t u t e , Columbus ~ a b o r a t o r i e s Div is ion .

2. Provide a schedule con ta in ing guidance on the p repa ra t ion , review and submi t t a l o f SARfs f o r a waste r e p o s i t o r y f a c i l i t y .

3. I d e n t i f y any s t u d i e s o r development i tems toge the r w i th recommended t iming and j u s t i f i c a t i o n s of t h e i r need, should i t become apparent dur ing t h e development of t a s k s (1) and ( 2 ) above, t h a t a d d i t i o n a l in format ion would be necessary f o r the t imely l i c e n s i n g of a waste r e p o s i t o r y f a c i l i t y .

111. SUMMARY

The fol lowing observa t ions summarize t h e major r e s u l t s of t h i s s tudy:

A . SAR Format Out l ine

. An SAR format and con ten t guide which s a t i s f a c t o r i l y add res ses t he s a f e t y concerns r e q u i s i t e t o a waste r e p o s i t o r y f a c i l i t y can be developed w i t h i n the fundamental framework of Regulatory Guide 3.26 by the inco rpora t ion of t h e s a l i e n t f e a t u r e s of both the BMI and SRI proposed o u t l i n e s a s p a r t i a l l y i nd ica t ed i n Sec t ion I V of t h i s r e p o r t .

2. The chap te r s r e q u i r i n g t h e most s u b s t a n t i a l f u r t h e r r e v i s i o n and/or development a r e Chapter 3 " S i t e C h a r a c t e r i s t i c s , " Chapter 5 " F a c i l i t y Descr ip t ion ," and Chapter 6 "Process Systems." Addi ' t ional develop- ment would c o n s i s t of completing the f i n e s t r u c t u r e of t h e format and inco rpora t ing c o n s i s t e n t con ten t d e s c r i p t i o n s and c ros s - r e fe rences wi th i n the f orma t framework .

B. SAR Schedule

1. Close coord ina t ion of t h e p a r a l l e l a c t i v i t i e s contained i n the proposed SAR development schedule w i l l be requi red t o achieve the scheduled goa 1s .

C . Add i t i ona l SAR Support E f f o r t s

1. The two recommended SAR support e f f o r t s a r e t o :

a.) Fu r the r develop a c c i d e n t s cena r ios t o provide t h e b a s i s of Chapter 9 , "Accident S a f e t y Analys is . I t

b) Review a l l NRC Regulatory Guides f o r a p p l i c a b i l i t y t o a waste r e p o s i t o r y f a c i l i t y .

I V . REVIEW OF PROPOSED SAR OUTLINES

The review of the two (2) proposed SAR Format Guides, "Proposed Ou t l ine of Sa fe ty Analys is Report f o r F a c i l i t i e s f o r Geolopic I s o l a t i o n o f Radio- a c t i v e Wastes," Y/OWI/SUB-77122320, June 1977, by S tanford Research I n s t i t u t e , (SRI o u t l i n e ) and "Proposed Ou t l ine f o r a ~ a f e t ~ " ~ n a l ~ s i s Report f o r a Radioact ive Waste Reposi tory," Y/OWI/SUB-76/7253/1, May 1977, by B a t t e l l e Memorial I n s t i t u t e , Columbus Labora to r i e s Div is ion (BMI o u t l i n e ) , was conducted i n two phases. F i r s t , t h e genera l format and con ten t of the SRI and BMI O u t l i n e s were reviewed a g a i n s t c u r r e n t NRC SAR Format Guides from Div i s ion 1, Power Reac tors , and Div i s ion 3, Fue l s and M a t e r i a l s F a c i l i t i e s , t o g a i n a n overview of the degree of conformity wi th e x i s t i n g formats and t h e e x t e n t o f compliance i n address ing t h e informat iona l concerns of t h e Commission. The second phase cons i s t ed of a d e t a i l e d review of both format and con ten t cons ide r ing t h e unique f u n c t i o n a l char - , a c t e r i s t i c s of a waste r e p o s i t o r y f a c i l i t y .

A. Format and Content Overview

A fundamental assumption on which t h i s review i s based i s t h a t NKC r e g u l a t o r y requirements , s i m i l a r t o those .presented i n 10CFR50.34, 10CFR50.35 and 10CFR70, w i l l be developed and incorpora ted i n t o lOCFR60. From these r e g u l a t i o n s t h e NRC w i l l then g e n e r a t e Regulatory Guides express ing t h e i r i n t e r p r e t a t i o n of t h e requirements necessary t o comply wi th t h e e s t a b l i s h e d r egu la t ions . However, u n t i l such t i m e t h a t the NRC has completed 10CFR60 f o r p u b l i c a t i o n and use , guidance must be obta ined from jud ic ious , s e l e c t e d r e fe rence t o e x i s t i n g r e g u l a t i o n s and r e g u l a t o r y guides.

The NRC Regulatory Guides u t i l i z e d i n t h i s review were:

1. 1.70 Rev 2 , "Standard Format and Content of Sa fe ty Analys is Reports f o r Nuclear Power P lan t s , " September 1975

2. 3.25 "Standard Format and Content of S a f e t y Analys is Reports f o r Uranium Enrichment F a c i l i t i e s , " December 1974

3 . 3.26 "Standard Format and Content of S a f e t y Analys is Reports f o r Fuel Reprocessing P l a n t s ," February 1975

4 . 3.39 "Standard Format and Content of License App l i ca t ion f o r Plutonium Processing and F u e l F a b r i c a t i o n P lan t s , " January 1976.

It should be noted t h a t R.cguletory Guides 3.5 "Guide t o t h e Contents of App l i ca t ion f o r Uranium M i l l i n g Licenses" February 1973; 3.15 "Standard Format and Content of L i c e n s e App l i ca t ions f o r S torage Orily of Uni r rad ia ted Reactor Fuel and Assoc ia ted Rad ioac t ive Mater ia l" October 1973; and 3.24 "Guidance on the License A p p l i c a t i o n , S i t i n g , Design, and P l a n t P r o t e c t i o n f o r a n Independent Spent Fue l S torage I n s t a l l a t i o n " December 1974, were considered but no t included i n t h e format and con ten t comparison because t h e i r s t r u c t u r e and content were n o t developed t o the corresponding l e v e l of d e t a i l ; however, a d d i t i o n a l i n s i g h t i n t o the s a f e t y concerns of NRC was obtained by eva lua t ing these guides a s w e l l ,

Of t h e fou r guides used i n t he comparison, Regulatory Guide 3.26 was chosen a s t he r e f e rence format because: a ) i t was u t i l i z e d by both SRI and BMI i n t h e i r o u t l i n e guide p repa ra t ion e f f o r t and, t h e r e f o r e , should a i d i n developing c o n s i s t e n t 'review comments; b) i t r e p r e s e n t s c u r r e n t M C guidance (even though Regulatory Guide '3.39, t h e most r e c e n t D i v i s i o n ' 3 format guide, was i ssued almost a yea r l a t e r t han Regulatory Guide 3 . 2 6 , ' t h e con ten t only d i f f e r s i n Chapmter 6 where the process systems a r e desc r ibed ) and c ) our i n v e s t i g a t i o n s i n d i c a t e t h a t a l l major s a f e t y concerns f o r a waste r e p o s i t o r y f a c i l i t y w i l l most l i k e l y f i t w i t h i n t h e format s t r u c t u r e of Regulatory Guide 3.26. The s e l e c t i o n of Regulatory Guide 3.26 a s t h e r e f e rence format does n o t imply t h a t e q u a l l y a t t r a c t i v e a l t e r n a t e approaches could n o t be employed. A t the p re sen t s t a g e of waste r e p o s i t o r y f a c i l i t y development a r i g i d SAR format o u t l i n e should n o t be expected; changes should be a n t i c i p a t e d and allowance made f o r i nco rpora t ion of t hese changes i n t o t h e SAR development plans. . . - .

The format and con ten t overview comparison has been summarized and i s presented i n Table 1. This summary i n d i c a t e s t h e l e v e l of agreement of both t h e format and d e s c r i p t i v e con ten t of the BMI and SRI proposed waste r e p o s i t o r y o u t l i n e s with Regulatory Guide 3.26, Fuel Reprocessing P l a n t s , SAR Format Guide. Add i t iona l ly , SAR Format Guides 3.25 - Uranium Enrichment F a c i l i t i e s , 3.39 - Plutonium and Fuel F a b r i c a t i o n P l a n t s , and 1.70, Rev 2 - Nuclear Power P l a n t s a r e compared on a chap te r by chap te r b a s i s wi th Regulatory Guide 3.26 i n Table 1. Regulatory Guide 3.25, whi le con ta in ing l e s s d e f i n i t i v e con ten t guidance than e i t h e r Regulatory Guides 3.26 o r 3.39, was included t o demonstrate t he precedence f o r inc luding " U t i l i t y and Support Systems" i n Chapter 5 " F a c i l i t y Design" r a t h e r t han i n Chapter 6 "Process Systems."

The comparative terms used i n t he summary, i n decreas ing o r d e r of s i m i l a r i t y a r e : .a .

S AMJ2 - g e n e r a l l y i n d i c a t e s good agreement wi th both format and con ten t except f o r some minor d i f f e r e n c e s .

SIMILAR - l e s s agreement, some format rearrangement and omissions, depth of con ten t d e s c r i p t i o n s and process terminology d i f f e r e n c e s a r e apparent .

COMPARABLE - r e p r e s e n t s a l i k e n e s s of con ten t cons ide r ing t h e ' d i f f e r e n c e s i n system des ign and func t ion ; cons ide rab le

format modi f ica t ion .

From t h e review summary, i t can be seen t h a t t h e r e i s a h igh degree of con- s i s t e n c y be.tween NRC Regulatory Guides 3.26 and 3.39. It i s a l s o i n t e r e s t i n g t o no te t h a t a l l chap te r s of t he Nuclear Power P l a n t SAR Format Guide, Regula- t o r y Guide 1.70 Rev 2, f i n d t o some e x t e n t a comparable chap te r i n the formats f o r Fue l s and M a t e r i a l s F a c i l i t i e s . Th i s g ives some confidence t h a t major s a f e t y concerns have been addressed , a t l e a s t t o t h e e x t e n t t h a t t h e s e f a c i l i t i e s encompass s i m i l a r hazards.

Except f o r Chapters 5 , ' ~ a c i l i t y ~ e s i ~ n : ' and 6 , " ~ r o c e s s Systems," t h e BMI o u t l i n e i s i n good agreement wi th the format and con ten t of t h e l a t e s t D iv i s ion 3 Regulatory Guides. A s expected we found t h e BMI o u t l i n e t o be o v e r l y s p e c i f i c

, TABLE 1 '

FORMAT & COWTEWT OVERVIEW SUMMARY

A conpar i son o f t h e proposed was te r e s p o s i t o r y o u t l i n e s , PRC SAR format g u i d e s 1.70, 3.25 and 3 . 3 9 a g a i n s t 3 .26 .

U S NRC REGULATORY GUIDES

1.70 - 3.25 - 3.39 - 3.26

Nuclear Uranium Pu P r o c e s s i n g and P w e r Enrichment Fue l F a b r i c a t i o n P l a n t s F a c i l i t i e s P l a n t s F u d Reprocess ing P l a n t s

CHAPTER

PROPOSED WASTE REPOSITORY O u t l i n e s

BMI SRI -

SAME SAME 1 . 0 IWRODUCTION AND GENERAL DESCRIPTION OF THE PLANT

SAME Abridged Content

SAME r e f t o 3.26

NONE SIMILAR SAME 2 . 0 SUMWRY SAFETY ANALYSIS SIMILAR Abridged Conten t

SAME r e f t o 3.26

SAME SIMILAR SAME 3 .0 SITE CHARACTERISTICS S& -Chapter 2 . 1 Less d e s c r i p t i v e th rough 2 . 5

SAME O u t l i n e on ly

SAME Out of numbering sequence

CWARABLE SZM1U.R SAME 4 . 0 PRINCIPAL DESIGN CRITERIA Chapter 3 Abridged c o n t e n t

SIMILAR Expanded format

SIMILAR Expanded format

COXPARABLE SIMILAR SAME 5 .0 FACILITY DESIGN Chapters 3 & 6

See d e t a i l e d comments

See d e t a i l e d comments

CONPARABLE SIMILAR SAME 6 . 0 PROCESS SYSTEMS C h a p t e r s 4 through 1 0

See d e t a i l e d comments

See d e t a i l e d comments

CWARABLE SIMILAR SAME 7 . 0 WASTE CONFINEMENT AND MANAGEMENT Chapter 11 Less d e s c r i p t i v e

SAME Content r e a r r a n g e d

SAME Sub X h a p t e r 7 .1 , 7 .1 .1 t o 7 .1 .9

SMILAR SIMILAR SAME 8.0 RADIATION PROTECTION Chapter 12 and sub- Less d e s c r i p t i v e Chapter 1 1 . 5

SAME Expanded format

SAME Sub-chapter 7.2

COXPARABLE S I M I W . I t e n s a d d r e s s e d

CI-.a?ter 1 5

SAME

SAME

9 . 0 ACCIDENT SAFETY ANALYSIS

10.0 CONDUCT OF OPERATIONS

SIMILAR

SAME

SIMILAR Expanded form Chapter 7 . 3 & 8

SLKLAR SIMILAR Chapter 1 3 , 13 .1 , Chapter 11 13.2 , 13.3, 13.5 Chapter 1 5

CWARABLE SIMILAR SAME 11.0 lECHNICAL SPECIFICATIONS Chapter 16 O u t l i n e form Except

o n l y sub - t i t l e Chapter 11.7

SAME Chapter 9

SAME O u t l i n e on ly

SAME Chapter 10

qUALITY ASSURANCE SAME O u t l i n e o n l y

SAME Chapter '11

SIMILAR SIMILAR SAME 12 .O Chapter 17 Chapter 10 More d e s c r i p t i v e

i n Chapters 5 and 6 being based upon a prev ious conceptua l des ign s tudy f o r a f a c i l i t y i n bedded s a l t . Re ten t ion of such a format could obvious ly lead t o SAR p repa ra t ion d i f f i c u l t i e s a s . d e t a i l e d des ign progresses .

. . .

The SRI . ou t l i ne shows a l e s s e r degree of conformity w i t h Regulatory Guide 3.26 format and content . The SRI o u t l i n e combines "Radiat ion P ro tec t ion , " "Accident S a f e t y Analys is ," and "Waste Confinement and Management" i n Chapter 7 and addres ses "Long-Term Waste sola at ion" concerns i n Chapter 8. Although such a s t r u c t u r e could be adopted and does have obvious advantages g iven t h e unique requirements f o r long-term i s o l a t i o n i n t h e p re sen t c a s e , we b e l i e v e t h a t a s i m i l a r e f f e c t can..be achieved wi thout l a r g e mod i f i ca t ions of t h e r e f e rence format by modifying ' t h e f i n e s t r u c t u r e of t he r e f e rence format , p a r t i c u l a r l y i n Chapters 3 , 5 , 6 , and 9.

Add i t iona l guidance a s t o t he NRC review process can be obta ined by inves t iga - t i o n of t h e NRC "Standard Review Plan" (SRP) f o r Nuclear Power P l a n t s . The Standard Review Plans a r e t a b u l a t e d i n t h e i d e n t i c a l format a s Regulatory Guide 1.70, Rev 2 , and c o n t a i n r e f e r e n c e s t o a p p l i c a b l e r e g u l a t o r y guides , i n d u s t r i a l s t anda rds , NRC branch t e c h n i c a l p o s i t i o n s and p e r t i n e n t r e g u l a t i o n s . Thus, Table 1 can a l s o be used t o c o r r e l a t e t he waste r e p o s i t o r y f a c i l i t y SAR c h a p t e r s t o NRC p o s i t i o n s by u t i l i z i n g Regulatory Guide 1.70, Rev 2 a s a n index t o t he SRP's.

B. De ta i l ed SAR Out l ine Review Comen t s

The chap te r by chap te r review comments provided below a r e addressed t o t h e BMI o u t l i n e . The comments a r e based on t h e conceptua l waste r e p o s i t o r y f a c i l i t y d e s c r i p t i o n developed by Parsons, Br inckerhoff , Qusde, and Douglas, Inc. (Waste I s o l a t i o n F a c i l i t y Desc r ip t ion , Bedded S a l t ~ / 0 ~ 1 / ~ ~ ~ - 7 6 / 1 6 5 0 6 , September 1976) and p r i o r n u c l e a r . l i c ens ing experience. I n a d d i t i o n , our comments were d i r e c t e d toward making t h e SAR more gene ra l i n a p p r o p r i a t e s e c t i o n s s o t h a t it would app ly t o d i f f e r e n t geologic s i t e s and d i f f e r e n t waste handl ing concepts . Reference has been made t o t h e SRI o u t l i n e and e x i s t i n g NRC SAR format guides where t h e i r con ten t d e s c r i p t i o n s provide more a p p r o p r i a t e guidance f o r t h e t o p i c being addressed.

A s a gene ra l r u l e , p r i o r nuc lea r power p l a n t l i c e n s i n g exper ience i n d i c a t e s t h a t t imely NRC reviews a r e more e x p e d i t i o u s l y processed when a format which i s f a m i l i a r t o t he NRC reviewers i s u t i l i z e d and the con ten t i s f a i t h f u l l y addressed w i t h i n the g iven format. One of t h e key o b j e c t i v e s of a good format. and con ten t gu ide is t o r e q u i r e s p e c i f i c in format ion necessary f o r t he e v a l u a t i o n of a l l s a f e t y concerns whi le a l lowing enough f l e x i b i l i t y t o i nco rpora t e innovat ive engineer in2 des ign mod i f i ca t ions dur ing the course of the. SAR prepara t i on .

Accordingly t h e fo l lowing gene ra l guidance has been employed i n developing t h e s e comments:

1. U t i l i z e a format t h a t a s s i s t s t he reviewer i n "walking through the f a c i l i t y . "

2. Reduce r e p e t i t i o n by t h e jud ic ious grouping of t op ic s . Th i s i s a document p r e p a r a t i o n time save r and a l s o reduces t h e p r o b a b i l i t y of overlooking a f f e c t e d s e c t i o n s when document changes a r e made dur ing t h e amendment process .

3. Maintain the major subchapter headings ( t o p i c s ) gene ra l enough so t h a t changes and mod i f i ca t ions i n p l a n t concept made dur ing t h e course of des ign development do n o t n e c e s s i t a t e a r e v i s i o n of t h e format. This i s e s p e c i a l l y important when t i g h t schedules a r e encountered.

Reference t o t h e BMI o u t l i n e , t h e SRI o u t l i n e , and Regulatory Guides 3.26 and 3.39 w i l l be necessary f o r a n in-depth understanding of the fo l lowisg comments :

' 1 CHAPTER 1 .0 In t roduc t ion and General Desc r ip t ion of t h e P l a n t

a . Under subchapter 1.2 "General P l a n t Descr ip t ion ," i t would be h e l p f u l t o t h e o v e r a l l understanding of t h e proposed p l a n t t o provide a drawing of the o v e r a l l f a c i l i t y p lan . This could be a drawing developed f o r Chapter 5.1.

It should be noted t h a t t h e NRC's review p r a c t i c e on nuc lea r power p l a n t s has been t o s p l i t t h e SAR subchapters i n t o groups f o r review by t h e i r s p e c i a l i s t s . Chapters t h a t d e s c r i b e the o v e r a l l p l a n t i n summary form and c o n t a i n gene ra l arrangement drawings a r e included i n a l l groups s o t h a t s u f f i c i e n t background informat ion i s a v a i l a b l e f o r t h e s p e c i a l i s t s t o perform t h e i r review wi thou t c b n s t a n t r e f e rence t o the e n t i r e SAR. Chapter 1 con ta ins t h i s type of gene ra l information.

b. Subchapter 1.5 - "Requirements f o r F u r t h e r Technical Information" should be included f o r i t ems such a s long term monitor ing techniques i f requi red . S ince BMI provided a n abridged con ten t d e s c r i p t i o n f o r t h i s c h a p t e r , r e f e r e n c e t o Regulatory Guide 3.26, Chapter 1, w i l l provide expanded guidance on the type and n a t u r e of t he d e s c r i p t i o n s des i r ed .

c . The FSAR should inc lude subchapter 1.6 - "Comparison of 'F ina l and Pre l iminary Information" f o r completeness and t o speed t h e l i c e n s i n g review process .

2. CHAPTER 2.0 Summary S a f e t y Analys is

a . S ince BMI provided a n abridged con ten t d e s c r i p t i o n , more s p e c i f i c guidance a s t o t h e c o n t e n t f o r t h i s c h a p t e r can be obtained by r e fe rence t o Chapter 2 of e i t h e r Regulatory Guide 3.26, a s recommended by SRI, o r Regulatory Guide 3.39.

b. It i s suggested t h a t BMI subchapter 2.5 "Release of Radioac t ive M a t e r i a l s During Pass ive Period" be r e - s t r u c t u r e d i n t o a subheading of "Accidents" subchapter 2.4 i n o r d e r t o ma in t a in format cons i s t ency wi th t h e s t r u c t u r e of Chapter 9 "Accident S a f e t y Analysis ."

3. CHAPTER 3.0 S i t e C h a r a c t e r i s t i c 9

a . S ince BMI only provided a n o u t l i n e , i t i s suggested t h a t Chapter 3 f r o m . e i t h e r D iv i s ion 3 SAR format guides 3.26 o r 3.39 be used i n o r d e r t o provide more d e s c r i p t i o n of t h e informat ion r equ i r ed by NRC f o r t h e i r review.

b. From the s i t e d e s c r i p t i o n viewpoint , i t may be u s e f u l t o conoidcr t h e wasre r e p o s i t o r y f a c i l i t y a s c o n e i e t i n g of two p a r t s , a waste process ing and

emplacement f a c i l i t y and a s to rage medium. Although p a r t s of the r e p o s i t o r y belong t o both p a r t s of t h e system, by and l a r g e t h e former has a working l i f e of a few t e n s of yea r s and can be engineered t o ame l io ra t e e x i s t i n g cond i t i ons whereas t h e l a t t e r has a working l i f e of hundreds of thousands

,,of y e a r s and cannot r e a d i l y be modified o r improved dur ing i t s requi red l i f e t i m e . Because of t h i s unique s i t u a t i o n , t he confinement c a p a b i l i t i e s of t he underground f a c i l i t i e s a r e e s s e n t i a l l y those of the s i t e . It fo l lows t h a t Chapter 3 is of c r i t i c a l importance and t h a t the s i t e d e s c r i p t i o n process must be one which provides a l l da t a r equ i r ed f o r both t h e shor t - te rm and long- term s t a b i l i t y eva lua t ions . Chapter 3 then becomes, i n a sense, a defense of t he s i t e s e l e c t i o n process ,and t h e d e s c r i p t i o n s of s i t e charac- t e r i s t i c s s e t down i n Chapter 3 must demonstrate t h a t the waste s t o r a g e .

medium should remain s t a b l e and unbreached throughout t he l i f e of t h e f a c i l i t y .

c . The SRI o u t l i n e provides a d d i t i o n a l guidance s p e c i f i c a l l y f o r a waste r e p o s i t o r y f a c i l i t y . I n p a r t i c u l a r subchapter 3.1.5 and 3.1.6 (geography and .demography) .and 3.3.5 and 3.3.6 (meteorology) e n t r i e s should be worked i n t o the SAR format guide. I n a d d i t i o n , the geo log ica l and hydro logica l /' in format ion provided i n SRI subchapters 8 .1 through 8.5 which d e a l s wi th the p ro j ec t ed long-term behavior of the undisturbed s i t e should' be i n t e g r a t e d i n t o t h i s s ec t ion .

d. The fol lowing s p e c i f i c comments add res s t h e SRI o u t l i n e and a r e o f f e r e d i n o r d e r t o p a r t i a l l y extend e i t h e r Regulatory Guide 3.26 o r 3.39 t o i nc lude t o p i c s unique t o a waste r e p o s i t o r y f a c i l i t y s a f e t y a n a l y s i s .

(1) Subchapter 3.3.5.1 - P l e i s t o c e n e Climate

Some of t he m a t e r i a l here ' (p roximi ty t o c o n t i n e n t a l and a l p i n e g l a c i e r s , occurrence of p e r i g l a c i a l f e a t u r e s , and P l e i s t o c e n e e r o s i o n a l f e a t u r e s , e t c . ) i s more p rope r ly i n the scooe of geo log ica l s t u d i e s . Th i s m a t e r i a l should be incorpora ted i n t o t h e r e g i o n a l geology subchapter (3.6.1.1) and cross- re ferenced .

(2 ) Subchapter 3.4.12 ( a d d i t i o n ) - E f f e c t s of Climate Changes

Discuss t he e f f e c t s of s u b s t a n t i a l changes i n c l ima te such a s an Pee age, on the p o t e n t i a l for f looding t h e sea led r e p o s i t o r y . Examine scenarios of changes i n s t ream base l e v e l s due t o changes i n sea l e v e l s , d r a i n i n g o r damming of l a k e s , e t c . , and the e f f e c t s of those changes on t h e r a t e of downcutting and on the p o t e n t i a l f o r exposure of t he s t r a t a con ta in ing t h e , r e p o s i t o r y .

: (3 ) Subchapter 3.5.1.6 ( add i t i on ) - P o t e n t i a l Long-Term Changes

. Discuss the ways i n which t h e ground water flow regime would probably change i f a major s h i f t i n ground l e v e l s such a s would be expected from r a d i c a l a l t e r a t i o n i n c l i m a t e , base l e v e l s , e t c . were t o occur. How would t h e s e changes a f f e c t t he formation i n which t h e waste i s depos i ted?

( 4 ) Subchapter 3.6.1.1 - Regional Geology

l tem 4. Discuss t he r eg iona l geo log ica l and s t r u c t u r a l h i s t o r y ( t h i s i s c l e a r e r and more s p e c i f i c ) . . t o e v a l u a t e t h e s u i t a b i l i t y

of t he r eg ion t o accommodate a was te r e p o s i t o r y . . Provide d e t a i l e d r e g i o n a l g r a v i t y and magnetic maps, isopach maps of t h e . p r i n c i p a l geo logic u n i t s , s t r u c t u r e and f a u l t maps, a map showing a r e a s of minera l and f l u i d e x t r a c t i o n , and s t r a t i g r a p h i c s e c t i o n s , a s w e l l a s suppor t ing d a t a such a s remote sens ing imagery, bor ing l o g s , e t c .

I tem 8. Add he re t h e m a t e r i a l from 3.3.5.1 a s d i s cus sed above.

I t e m 9. Provide a d e t a i l e d d e s c r i p t i o n o f t h e chemis t ry , mineralogy, and f l u i d s conta ined i n rocks i n , above and below t h e r e p o s i t o r y . Compare these parameters wi th those of average sedimentary rocks t o ensu re t h a t no unusual concen t r a t i ons e x i s t which may cause t h e r e p o s i t o r y t o become a t a r g e t f o r minera l ' e x p l o r a t i o n i n t h e d i s t a n t f u t u r e .

(5) Subchapter 3.6.1.2 S i t e Geology - Surface

Item 3. Add a f t e r t he f i r s t sen tence "Relate t he se s i t e s t r u c t u r a l f e a t u r e s t o r e g i o n a l t e c t o n i c s and r eg iona l s t r u c t u r a l f ea tu re s . "

( 6 ) . Subchapter 3.6.1.3 S i t e Geology - Subsurface

I tem 5. This m a t e r i a l belongs i n 4.3.12, s i n c e i t i s more c l o s e l y r e l a t e d t o mine s a f e t y than t o geo log ica l c h a r a c t e r i s t i c s of t he s i t e .

(7 ) Subchapter ' 3.6.4.2 P r o p e r t i e s of Underlying M a t e r i a l s

Add t o l i s t of p r o p e r t i e s r equ i r ed t h e fol lowing: " s e n s i t i v i t y , swe l l i ng , i on exchange, ove rconso l ida t ion r a t i o , and mineralogy. "

(8 ) Subchapter 3.8 Summary of Condi t ions A f f e c t i n g F a c i l i t y Cons t ruc t ion and Opera t ing Requirements

Add f i n a l sen tence "Include p e r t i n e n t f a c t s developed i n e i t h e r Subchapter 5.4 o r 6.1.4 on p o t e n t i a l and a c t u a l r e a c t i o n s between t h e waste and t h e s t o r a g e medium.."

4. CHAPTER 4 .0 P r i n c i p a l Design C r i r e r i a

a . I n BMI subchapter 4.4.5 "Qua l i t y Assurance C l a s s i f i c a t i o n , " we sugges t the u se of some c l a s s i f i c a t i o n o t h e r than C l a s s 1, 2 and 3 i n o r d e r t o avoid any poss ' ible confus ion w i t h ASME B o i l e r and P re s su re Vessel Code, S e c t i o n 111, c l a s s i f i c a t i o n , a s u t i l i z e d i n nuc l ea r power p l a n t ' components,

. u n l e s s code c l a s s components a r e r equ i r ed f o r s a f e ope ra t i on .

b. SRI subchapter 4 .2 .4 "Groundwater Design Cons idera t ions" would h e l p expand BKI: 4.2.3.5 "Subsurface Aqui fe rs . "

c . SRI subchapters 4.2.6 "Mined Ma te r i a l , " 4.3.7 "Thermal Impact ," 4.3.12 "Mine S a f e t y Cons t ruc t ion C r i t e r i a " and 4.5 "Engineered R e t r i e v a h i l i t y " should be worked i n t o t h i s c h a p t e r ' s o u t l i n e . These a r e unique c r i t e r i a , p e r t i n e n t t o t h e waste r e p o s i t o r y f a c i l i t y .

d. SRT subchapter 4.6 "Decomissioning" should be s u b s t i t u t e d f o r B M I ' s 4.5 a s i t p r e s e n t s a more s t r u c t u r e d format guide.

5. CHAPTER 5.0 F a c i l i t y Design

a . Chapter 5 of t h e BMI o u t l i n e was d i f f i c u l t t o fo l low. On d e t a i l e d examination i t became apparen t t h a t the o u t l i n e was ove r ly concept s p e c f f i c and t h a t the o u t l i n e s t r u c t u r e conta ined t o o much r e p e t i t i o n . Some of t he format d i f f i c u l t i e s may have been introduced by f o r c e f i t t i n g t o Regulatory Guide 3.26 format (Fuel Reprocessing p l a n t s ) . It should be noted t h a t both Regulatory Guides 3.26 and 3.39 a r e geared t o b a s i c a l l y chemical p rocesses and t h a t t h e format s t r u c t u r e of t he f a c i l i t i e s d e s c r i p t i o n chap te r a l s o r e f l e c t s t h i s p rocess o r i e n t a t i o n , however, no t n e a r l y a s much a s Chapter 6 "Process Systems." S ince the waste r e p o s i t o r y processes a r e predominantly remote and c o n t a c t m a t e r i a l s handl ing o p e r a t i o n s , both of which a r e phys i ca l o p e r a t i o n s , t h e SAR format guide f o r Uranium Enrichment F a c i l i t i e s , Regulatory Guide 3.25, would seem t o be more a p p r o p r i a t e f o r Chapters 5 and 6.

b. With t h e preceding comments i n mind, i t i s suggested t h a t Chapter 5 i nc lude only f a c i l i t y d e s c r i p t i o n s and Chapter 6 i nc lude process s y s tem d e s c r i p t i o n s .

Table 2 p r e s e n t s a recommended o u t l i n e f o r Chapter 5 which s e q u e n t i a l l y add re s se s t he above ground f a c i l i t i e s , s h a f t s , and below ground f a c i l i t i e s . Th i s format l ends i t s e l f t o the decommissioning sequence of removing above grade f a c i l i t i e s , s e a l i n g of s h a f t s and then t h e long term i s o l a t i o n of below grade a r e a s w i th p o s s i b l e s u r v e i l l a n c e . Table 2 a l s o c r o s s - r e f e r e n c e s t h e a p p r o p r i a t e subchapter e n t r i e s o f both t he SRI o u t l i n e and BMI o u t l i n e . The l e f t hand s i d e of t he t a b l e i n d i c a t e s Regulatory Guide 3.25 o u t l i n e f o r r e f e r ence on ly .

c . B M I ' s subchapter 5.6.2 "Mined M a t e r i a l s Handling Systemst1 has been included i n Chapter 6 under the subchapter "Other Process ing Systems," 6.3.11.

6. CHAPTER 6.0 Process Systems

a . The BMI Chapter 6 was a l s o d i f f i c u l t t o fo l low, most l i k e l y f o r t h e same reasons a s s t a t e d i n t h e comments' on Chapter 5 . I n p a r t i c u l a r t h e second decimal headings r e f e r t o f a c i l i t y a r e a s and no t t o t h e process o r i t s ope ra t i on . I n some i n s t a n c e s , the 1ac.Ll i ty d e s c r i p t i o n and f e s des ign requirements a r e inc luded here . For c l a r i t y t o a reviewer and e a s e of SAR p r e p a r a t i o n , it i s suggested the t the f a c i l i t y be descr ibed comple te ly i n Chapter 5 and t h a t Chapter 6 d e s c r i b e the sequence of handl ing each major type of was te , r e f e r e n c i n g back t o Chapter 5 f o r the b u i l d i n g and below grade l a y o u t s a s necessary , t y ing i n t h e suppor t s e r v i c e systems and t h e i r s a f e t y f e a t u r e s , and c r o s s - r e f e r e n c i n g o p e r a t i n g procedures conta ined i n Chapter 10.

b. Table 3 completes t h e s e p a r a t i o n of f a c i l i t i e s from systems a s i n i t i a t e d i n Cha.pter 5 review comments. Th i s t a b l e p r e s e n t s a recommended o u t l i n e sub- s t i t u t e f o r Chapter 6 and c o n t a i n s s i m i l a r in format ion a s por t rayed i n Table 2.

c . Within the framework of t he proposed SAR format o u t l i n e s , a s w i t h i n t h e D iv i s ion 3 Regulatory Guides, subchapters 5.2 "Above Ground F a c i l i t i e s , ' I

5 .3 "Shafts" and 5.4 "Below Ground F a c i l i t i e s " t o g e t h e r w i t h subchapter 6.1.4 " I d e n t i f i c a t i o n of I tems f o r S a f e t y Analys i s Concern" should s a t i s f a c t o r i l y br idge t he gap between subchapter 3.7 "Surmnary of Condi t ions A f f e c t i n g F a c i l i t y Cons t ruc t ion and Operat ing Requirements" and Chapter 9 "Accident S a f e t y Analysis"

TABLE 2

REGULATORY GUIDE 3 .25 OUTLINE

CHAPTER 5 FACILITY DESIGN

5 . 1 S i t e D e s c r i p t i m

RECOMMENDED OUTLINE

CHAPTER 5 FACILITY DESIGN

5 .1 Summary D e s c r i p t i o n

5 .1 .1 Loca t ion and F a c i l i t y Layout 5.1.2 P r i n c i p a l F e a t u r e s

5 .1 .1 Loca t ion and F a c i l i t y Layout 5.1.2 P r i n c i p a l F e a t u r e s

5.1.2.1 S i t e Boun2ary 5.1.2.2 Exc lus ion Area 5.1.2.3 R e s t r i c t e d Area 5.1.2.4 S i t e U t i l i t y S u p p l i e s and Systems 5 .1 .2 .5 S t o r a g e F a c i l i t i e s 5.1.2.6 S t a c k s 5.1.2.7 R a i l Systems 5.1.2.8 Underground F a c i l i t i e s

5 .2 Enrichtitent P roces s B u i l d i n g s and Components 5 .2 Above Ground F a c i l i t i e s

5 .2 .1 S t r u c t u r a l S p e c i f i c a t i o n s 5 .2 .2 B u i l d i n g Layout

5 . 3 A u x i l i a r y Bu i ld ings and Components

5 .3 .1 S t r u c t u r a l S p e c i f i c a t i o n s 5.3.2 B u i l d i n g Layout

5 .4 I tems Requ i r i ng F ~ l r t h e r Development

5 .5 Changes f r o e t h e ?SAR

5.2 .1 P roces s Bu i ld ings 5 .2 .1 .1 General S p e c i f i c a t i o n s 5.2.1.2.x ( i t emized p r o c e s s b u i l d i n g s )

( c a n i s t e r e d was te f a c i l i t y , low l e v e l was te f a c i l i t y . e t c )

5.2.1.1.x.1 S p e c i f i c a t i o n s S p e c i f i c 5 .2 .1 .1 .x .2 , Bu i ld ing Layout 5 .2 .1 .1 .x .3 Confinement and S p e c i a l F e a t u r e s 5 .2 .1 .2 .x .4 O p e r a t i o n a l Area D e s c r i p t i o n s 5.2.1.2.x. 5 S a f e t y Assessment

5.2.2 Suppor t Bu i ld ings S i m i l a r o u t l i n e a s 5 . 2 . 1 above

5 .2 .3 Suppor t Areas S i m i l a r o u t l i n e a s 5 .2 .1 above

5.3 S h a f t s (S imi l a r S t r u c t u r e a s 5 . 2 . 1 above)

5.4 Below Ground F a c i l i t i e s (S imi l a r S t r u c t u r e a s 5 .2 .1 above)

5 .5 I tems Requ i r i ng F u r t h e r Development

5 . 6 Changes from t h e PSAR (FSAR on ly )

PROPOSED OUTLINE SUBCHAPTERS

BMI - 5 . 1

SRi -

5 . 1

5 .3 , 6 . 1 t h rough 8 . 5

5 . 8

TABLE 3 - RECOMMENDED OUTLINE km SAR CHAPTER 6

REGULATORY GUIDE 3 .25 OUTLIKE RECOI.IMENDED OUTLINE PROPOSED OUTLINE SUBCHAPTER

CHAPTER 6 SYSTEMS AND COMPONENT DESIGX CHAPTER 6 PROCESS SYSTEMS , SRI - 6 .1 Genera l 6 .1 Genera l

6.1.1 R e q u i r e r e n t s 6.1.2 N a r r a t i v e D e s c r i p t i o n

6 .1 .1 Requirements 6.1.2 N a r r a t i v e D e s c r i p t i o n

6.1.3 Flowsheets 6 .1 .3 Flowsheets 6 .1 .1 6.1.4 I d e n t i f i c a t i o n o f I tems f o r 6 .1 .4 I d e n t i f i c a t i o n of I tems f o r S a f e t y 6 .4 , 6 .6

S a f e t y A ~ a l y s i s Concern A n a l y s i s Concern .

6 .2 P r o c e s s Chemis t ry and P h y s i c a l 6 .2

6 . 3 Enrichment and 3 t h e r P r o c e s s i n q awsL!k%

6.3.1 . . 2, 3 , e t c . P roces s I d e n t i f i c a t i o n

6.3. X. 1 Functi .3nal D e s c r i p t i o n 6 .3 . X. 2 Major Components 6.3.X. 3 Ees ign D e s c r i p t i o n

. 6 . 3 . X.4 S a f e t y C r i t e r i a and Assurance 6.3. X.5 C,peratLng L i m i t s 6.3. X; 6 Component Spa re s 6.3. X. 7 I n s t r u n e n t a t i o n

6 .4 U t i l i t v and Supvor t Svstems 6 .3

B u i l d i n g V e n t i l a t i o n E l e c t r i c a l Compressed A i r Steam Supply and D i s t r i b u t i o n Water Supply P roces s Heat Exchange Sewage Trea tment C o m n i c a t i o n and Alarms F i r e P r o t e c t i o n

6 . 4

6.5 Sampling and Analyses 6 .5

6 . 6 Items Requ i r i ng F u r t h e r Developmect 6 .6

6.7 Changes f r ~ a t h e PSAR 6.7

Mechenical P roces s Svstems f o r Each o f t h e fo l l owing , d e s c r i b e t h e was t e h a n d l i n g sequence i n c l u d i n g : Receiv ing , S t o r a g e , T r a n s f e r , I n s p e c t i o n through I s o l a t i o n ( B u r i a l i n S a l t ) ( r e f e r t o f l ow s h e e t s )

6.2.1 ~ a n i s t e r e d Waste High Level', Cladding & I n t e r m e d i a t e Waste 6 .2

6.2.2 Low Level Waste 6.3 '

(For each h a n d l i n g sequency i n c l u d e : ) 6.2.1, 2 , 3 , e t c . P roces s I d e n t i f i c a t i o n 6.2.X.1 Func t ion D e s c r i p t i o n 6.2.X.2 Major Components 6.2,X,3 Design D e s c r i p t i o n 6.2.x.4 S a f e t y C r i t e r i a and Assurance 6.2.X.5 O p e r a t i n g L i m i t s 6.2. X. 6 Component Spa re s 6.2.X.7 I n s t r u m e n t a t i o n 6.8 6.2.X.8 R e t r i e v a l P roces s 6.7

6 . 2 . 3 Mining O p e r a t i o n s 6 . 5

U t i l i t y and Suppor t Systems 5 .7

B u i l d i n g V e n t i l a t i o n E l e c t r i c a l .

Compressed A i r Steam Supply and D i s t r i b u t i o n .Water Supply P roces s Heat Exchange Sewage Trea tment Communications and Alarms F i r e P r o t e c t i o n Maintenance O the r s

6 . 1 . 2 6 . 1 . 3 8 . 1 through 8 . 5

Con t ro l Room ( a r e a s ) 6.9 6 .5

Sampling and Analyses 6.10 6. 6

I tems Requ i r i ng F u r t h e r Development 6 . 8

Changes from t h e PSAR (FSAR o n l y ) 6 . 9

s o a s t o demonstrate t he s u i t a b i l i t y of t he s i t e f o r long-term s t o r a g e 'of hazardous m a t e r i a l s a s w e l l a s f o r t h e r e l a t i v e l y sho r t - t e rm ope ra t i ons phase. Subchapter 6 .1 .4 should d i s c u s s how the thermal , r a d i o l o g i c a l , and chemical p r o p e r t i e s of t h e bur ied wastes may modify t h e c h a r a c t e r i s t i c s of the surrounding medium, and how long-term confinement may be e f f e c t e d by t h e s e mod i f i ca t i ons .

7. CHAPTER 7.0 Management of On-Site Wastes

a . Care should be exe rc i s ed throughout SAR p r e p a r a t i o n t o d i s t i n g u i s h between o n - s i t e genera ted was tes , those was tes c o l l e c t e d a s a r e s u l t of t h e r e p o s i t o r y f a c i l i t y o p e r a t i o n , and the "waste" shipped i n t o t h e f a c i l i t y f o r i s o l a t i o n ( b u r i a l i n t h e mine) .

b. Suggest u s ing t h e format and con ten t of Regulatory Guide 3.26 Chapter 7 w i th t he chap te r t i t l e modified t o read '!Management of On-s i te Generated Wastes." I n a d d i t i o n t o being a format t h a t i s f a m i l i a r t o the NRC, Re.gulatory Cuide 3.26 c o n t e n t g i v e s more d e f i n i t i v e guidance. I n a n e l t e rna t e s t r a t e g y , which downplays t h e importance of on- s i t e genera ted was t e s , t h e d e s c r i p t i o n of t h e s e r a d i o a c t i v e waste t rea tment systems could be incorpora ted i n t o t he process d e s c r i p t i o n s of Chapter 6.

CHAPTER 8.0 Radia t ion P r o t e c t i o n

a . Subchapters should be included t o add re s s "Items Requir ing Fu r the r Development" and "Changes from t h e PSAR" i n o r d e r t o complete t h i s c h a p t e r t o conform t o e x i s t i n g D i v i s i o n 3 SAR formats .

b. S ince t he primary long-term p r o t e c t i o n a g a i n s t r a d i a t i o n r e l e a s e i s t h e geologic s t o r a g e medium, it i s a p p r o p r i a t e t o d i s c u s s t he p o t e n t i a l f o r r a d i o a c t i v i t y r e l e a s e s r e s u l t i n g from long-term geo log ica l and hydro log ica l p rocesses such a s changes i n ground water f lows , f a u l t i n g , f r a c t u r e propaga- t i o n , and renewed d i ap i r i sm . Ma te r i a l conta ined i n Chapter 3 , which i s requi red f o r t h e s e eve lua t ions , shou ld be c ros s - r e f e r enced . I n a d d i t i o n , t h e environmental dosimetry models u t i l i z e d i n the r a d i o l o g i c a l assessment should be e i t h e r de sc r ibed , appended o r referenced. i n t h i s chap te r .

9. CHAPTER 9.0 Accident S a f e t y Ana lys i s

a . Considera t i o n should be gi.vcn t o subdiv id ing t h e abrlormal ope ra t i ons and a c c i d e n t s d i scussed i n BMI subchapters 9 . l . a n d 9.2 a s occu r r ing i n s u r f a c e , s h a f t and underground a r e a s and ana lyz ing each s e p a r a t e l y . This s p l i t may provide a n a c c i d e n t grouping t h a t i s e a s i e r t o fo l l ow and ana lyze , and would be c o n s i s t e n t w i th t h e recommended s e p a r a t i o n of s i t e c h a r a c t e r i s t i c s commented on i n Chapter 3 and the recommended format f o r Chapter 5 , T a c i l i t i e s Design."

b. SRI subchapters 7.3.1 and 7.3.2 provide a d d i t i o n a l guidance f o r t he development of B M I subchapters 9 .1 and 9.2. .

c . The m a t e r i a l conta ined i n SRI Chapter 8 provides a good s t a r t on a c c i d e n t s cena r io s f o r t he long-term' pa s s ive phase. These . a cc iden t s cena r io s should be f u r t h e r developed and c ros s - r e f e r enced wi th t h e s i t e d e s c r i p t i o n of Chapter 3.

10. CHAPTER 10.0 Conduct o f Opera t igns

a . Opera t ions may have t o i nc lude long-term s u r v e i l l a n c e a f t e r decommissioning.

b. A s epa ra t e document covering phys i ca l s e c u r i t y w i l l most l i k e l y be r equ i r ed and should be re ferenced i n t h i s chap te r .

c . The ope ra t ions o r i en t ed po r t ions of BMI subchapter 6.5 "Mining Operat ions," SRI subchapters 5.6 "Environmental S a f e t y Design" and 5.7 "Mine Enforcement and S a f e t y Administrat ion" should be r e s t r u c t u r e d and included i n t h i s chap te r .

d. SRI subchapter 5.6 "Environmental Sa fe ty Design" provides a d d i t i o n a l input i tems f o r t h i s chap te r .

11. CHAPTER 11.0 Technical S p e c i f i c a t i o n s

a . The SRI Chapter 10 should be s u b s t i t u t e d f o r BMI Chapter 11 s i n c e i t c o n t a i n s a more d e t a i l e d breakdown of t h e r equ i r ed information. The BMI Chapter 11 provided only a n o v t l i n e .

b. It i s suggested t h a t cons ide ra t ion be g iven t o changi'ng t h i s chap te r t i t l e t o "Operating Con t ro l s and Limi ts , " a s presented i n Regulatory Guide 3.39, t o d i f f e r e n t i a t e t h i s f a c i l i t y from a nuc lea r power p l a n t l i censed under 10CFR50.

c . For more d e f i n i t i v e d e s c r i p t i o n of the informat ion r equ i r ed i n t h i s chap te r r e f e r t o Regulatory Guide 3.6 "Content of Technical S p e c i f i c a t i o n s f o r Fuel Reprocessing P l a n t s , " A p r i l , 1973.

12. CHAPTER 12.0 Q u a l i t y Assurance

a . Since BMI provided a n o u t l i n e only , suggest t h e s u b s t i t u t i o n f o r use and guidance of Chapter 12 "Quali ty Assurance" from Regulatory Guide 3.39, "Standard Format and Content of License Appl ica t ions f o r Plutonium Processing and Fuel F a b r i c a t i o n P lan ts . " Th i s i s t h e l a t e s t and most complete D iv i s ion 3 Regulatory Guide and r e f l e c t s c u r r e n t NRC requirements .

b. It' might be d e s i r a b l e t o add a subchapter cover ing any Q u a l i t y Assurance envisioned f o r t h e pos t ope ra t ion phase such a s long-term s u r v e i l l a n c e i f u t i l i z e d .

c. A t t e n t i o n should be g iven t o Q u a l i t y Assurance p l a n s f o r mine s e a l i n g and s u r f a c e decommissioning.

V. SAR SCHEDULE GUIDANCE

SAR scheduling can be viewed from two a spec t s . The SAR development a c t i v i t i e s can be considered a s f r a g n e t s ( l o g i c sequence i n p u t s ) t o the o v e r a l l p r o j e c t schedule o r , a t the o t h e r extreme, the SAR, from planning inpu t s t a g e t o d e l i v e r y of t h e f i n a l bound copy, can be t r e a t e d a s a t o t a l schedule i n i t s e l f . Both viewpoints must be examined and subsequent ly meshed i n o rde r t o develop a c o n s i s t e n t o v e r a l l p r o j e c t schedule. The approach u t i l i z e d i n t h i s s tudy was t o main ta in t h e o v e r a l l p r o j e c t schedule a s a f i xed c o n s t r a i n t and developa r e a l i s t i c d e t a i l e d PSAR schedule w i t h i n the given framework; t h i s approach i s based mainly upon t h e document development phi losophy u t i l i z e d f o r many nuc lea r power p l a n t p r o j e c t s . I n a d d i t i o n , i t has been assumed t h a t the SAR document a c t i v i t y f o r the waste r e p o s i t o r y f a c i l i t y i s n o t on the c r i t i c a l pa th so t h a t maximum SAR manday e f f i c i e n c y can be achieved. This impl ies t h a t a s u b s t a n t i a l change i n t he d u r a t i o n of any SAR p repa ra t ion a c t i v i t y w i l l n o t s i g n i f i c a n t l y a f f e c t the o v e r a l l p r o j e c t schedule. I f t h i s i s not t he ca se , a l t e r n a t e schedules can be developed t h a t c o n t a i n g r e a t e r use of p a r a l l e l a c t i v i t i e s t o sho r t en t h e SAR d r a f t p repa ra t ion time d u r a t i o n a t t he . added expense of both a d d i t i o n a l manpower and.mandays.

A p o r t i o n of t h e o v e r a l l p r o j e c t schedule dovering the SAR a c t i v i t i e s and t h e i r major i n t e r f a c i n g a c t i v i t i e s i s . shown on F igu re 1, Overa l l SAR Schedule. The key s t a r t and s t o p d a t e s were obtained from OW1 and a r e l i s t e d i n Table 4. I n t he event of s u b s t a n t i a l ' change i n any of t he l i s t e d key d a t e s , a review of t he SAR schedule impact should be performed t o uncover p o t e n t i a l incon- s i s t e n c i e s and ga in advance warning of any r e s u l t i n g p r o j e c t schedule s l ippage .

I n o rde r t o maximize t h e SAR p repa ra t ion guidance, t he d e t a i l e d SAR schedule has been l i m i t e d t o t he PSAR s t age . This s e l e c t i o n was based on the judgment t h a t more and v a r i e d d i f f i c u l t i e s w i l l be encountered i n t h e PSAR p repa ra t ion than i n FSAR p repa ra t ion , and i t i s q u i t e ev iden t t h a t t h e r e i s cons iderably l e s s l ead time f o r PSAR p repa ra t ion than f o r FSAR p repa ra t ion . I n a d d i t i o n , the FSAR o f f e r s t h e a l t e r n a t i v e development approach of a c o n t i n u a l , low l e v e l of e f f o r t , updat ing of t he PSAR a s a means of compiling the SAR document, whereas t he PSAR r e q u i r e s a major, r e l a t i v e l y s h o r t term, e f f o r t .

The chap te r by c h a p t e r PSAR development s c h ~ d u l e shown on Figure 2 i s based upon t h e r e f e rence format developed i n Sec t ion I V and inc ludes the i n t e r f a c i n g a c t i v i t i e s of engineer ing , s i t e r e l a t e d a c t i v i t i e s and suppor t ing s t u d i e s . The l o g i c behind t h e s e q u e n t i a l p repa ra t ion of t h e PSAR c h a p t e r s has been b r i e f l y summarized i n a ma t r ix on Figure 3 and i n d i c a t e s t h e p r e r e q u i s i t e SAK chap te r con ten t knowledge r e q u i r e ? f o r a c o n s i s t e n t , complete PSAR document. A l t e r n a t e development schedules and sequence ma t r i ce s can be prepared i n a s i m i l a r manner f o r o t h e r assumed format s t r u c t u r e s .

The fo l lowing i s a s h o r t d e s c r i p t i o n of the main f e a t u r e s i n h e r e n t - i n t he PSAR development schedule presented i n F igure 2. A key c o n t r o l l i n g a c t i v i t y should be understood t o mean a s e c t i o n of a c h a p t e r of the SAR which r e q u i r e s major e f f o r t and c o n t r o l s the t ime f o r completion of t he c h a p t e r . :

Once the s i t e i n v e s t i g a t i o n s have progressed s u f f i c i e n t l y and s t u d i e s of a c c i d e n t s cena r ios f o r i s o l a t e d waste i n geo log ica l formatdons have been cumplered. drat t p r ~ p a r a t i o n of Chapters 3, 4 ~ I I J 9 should be s t a r t e d .

FIGURE 1 OVERALL SAR SCHE'DULE

CALENDAR YEAR *

1977 1978 ' 1979 1980 1981 1982 1983 1984

LICENSING A C T l V l f IES

ENGINEERING DESIGN &

CONSTRUCTION

SlTE RELATED

ACTIVITIES

1985

J F M A M J J A S O N D J J

INITIAL FINAL ENVIRONMENTAL ENVIRONMENTAL

ER REPORT REPORT i

t t I

CHAPTER DRAFT

STUDIES AND PREPARA- I

SAR INVESTIGATIONS I TlON IREVIEW I I t t

t

PSA R FSAR 1 TO TO

NRC NRC I I I

- . +

CONCEPTUAL DESIGN TITLE I

PRELIMINARY TITLE I 1

DETAILED DESIGN

TITLE I I I CONSTRUCTION

I! PRE-OP TESTING -

I

I FACILITY OPERATION 3

I

PRELIMINARY SITES SITE(S) I IDENTIFIED ,I - SELECTED - ACCESS PERMITS

i I

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1 17 ,

F M A M J J A S O N D

1986

F M A M J J A S O N D

WASTE REPOSITORY FACILITY

ITEM -

TENTATIVE LICENSING SCHEDULE

INPUT

1. SITE - a ) P r e l i m i n a r y L o c a t i o n s (30 s q mi)

b) S e l e c t e d s i t e ( s )

c ) Land A c q u i s i t i o n

d ) On s i te m e t e r o l o g i c a l s t a t i o n

2. ENGINEERING

a ) Concep tua l

b ) T i t l e I

c ) T i t l e I1

d) T i t l e I11 ( C o n s t r u c t i o n )

e) P r e - o p e r a t i o n t e s t i n g

3. FACILITY OPERATION

4. LI,!!JQISING

a ) PSAR

b) FSAR

c ) I n i t i a l Environmental Repor t

d ) F i n a l Environmental Repor t

Access Permi t s

PDEIS $ t o ERDA

* S e l e c t i o n by OW1

1. Approved by E F ~ A

CALENDAR DATES START COMPLETE

$ P r e l i m i n a r y D r a f t Environmental Impact S ta tement

FIGURE 2 PSAR DEVELOPMENT SCHEDULE

CALENDAR YEAR

1979 C

J I F I M J A I M I J I J I A I S ~ O ~ N I D 1980

J ~ F ~ M ~ A ~ M ~ J ~ J ~ A ~ S ~ O ~ N I D 1977

S ~ O ~ N ~ D

SAR A N D

RELATED STUD1 ES

ENGINEERING

SlTE

1

1978

J I F ~ M ~ A ~ M ~ J I J I A I S J O I N I D I 1981

J ~ ' F ~ M ~ A ~ M ~ J ~ J ~ A ~ S ~ O ~ N I D 1982

J l ~ l ~ l ~ l ~ I

I I I I I I INITIAL ENVIRONMENTAL REPORT

ER I FER _

I

I I PSAR TO NRC STUDIES & INVESTIGATIONS CHAPTER DRAFT ERDA I

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4 DESIGN CRITERIA

5 FACILITIES

6 PROCESS SYTESMS

7 WASTE MANAGEMENT

8 RADIATION PROTECTION

9 ACCIDENT ANALYSIS

10 OPERATIONS

11 TECHSPECS

12 Q/A

I --- --- DEVELOP'. DESIGN CRITERIA

I ----- -.- - - -

IDENTIFY PROCESS SYSTEMS MALFUNCTION & FAILURE MODES

I - - - - DEVELOP ENVIRONMENTAL

-- -- DOSIMETERY MODELS

I DEVELOP ACCIDENT SCENARIOS

-

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- - - -

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TITLE I (PRELIMINARY DESIGN)

1 INTRODUCTION

2 SUMMARY

3 SlTE CHARACTERISTICS

TITLE II (DETAILED DESIGN) I

e LAND ACQUlSlTlON

TITLE Ill CONSTRUCTION I

- '1

FIGURI': 2

I 19

SAR CHAPTER

1.0 INTRODUCTION AND GENERAL DESCRIPTION OF THE PLANT

INTERFACING CHAPTER INPUTS

3 4 5 6 7 8 9

2.0 SUMMARY SAFETY ANALYSIS X X X X

3 . 0 S I T E CHARACTERISTICS

4.0 PRINCIPAL DESIGN CRITERIA

5 .0 FACILITY DESIGN

6 .0 PROCESS SYSTEMS

7 . 0 WASTE CONFINEMENT AND MANAGEMENT

8.0 RADIATION PROTECTION

9 . 0 ACCIDENT SAFETY ANALYSIS

10.0 CONDUCT OF OPERATIONS

11.0 TECHNICAL SPECIFICATIONS

12.0 QUALITY ASSURANCE

X X

X X X X

X X X

X

X

X - D r a f t p r e p a r a t i o n p r e r e q u i s i t e

0 - F e e d b a c k for d r a f t c h e c k i n g

Chapter 3 - This c h a p t e r i s most ly s i t e dependent. The key c o n t r o l l i n g a c t i v i t i e s , which w i l l a l s o be r equ i r ed f o r q u a n t i t a t i v e a s p e c t s of Chapter 9 , a r e subchapter 3.3 "Meteorology" .and subchapter 3.7 on "Summary of Condi t ions Affectifig F a c i l i t y Construct ion."

Chapter 9 - I n i t i a l d r a f t s w i l l be based on t h e r e s u l t s of t h e s tudy on a c c i d e n t s cena r ios , conceptua l des ign f e a t u r e s a s modified by the l a t e s t i n p u t from T i t l e 1 Engineering, and se i smic des ign parameters from Chapter 3. Subsequent d r a f t s of Chapter 9 w i l l be r equ i r ed a s d e t a i l e d engineer ing proceeds, f u r t h e r s i t e r e l a t e d information i s developed, and t h e a c c i d e n t s cena r ios a r e r e f ined .

Chapter 4 - Thi s chap te r should draw upon Chapters 3 and 9 and publ ished r e g u l a t o r y g u i d e l i n e s i n i t s i n i t i a l s t ages . The c r i t e r i a developed i n Chapter 4 w i l l be app l i ed t o t he f a c i l i t y des igns descr ibed i n Chapter 5 and t o t h e systems housed i n t h e s e f a c i l i t i e s i n Chapter 6. The c r i t e r i a developed i n Sec t ion 4.3 should subsequent ly be cross-checked a g a i n s t Chapter 9 , Sec t ion 6.1.4 and Sec t ion 3.7. The key c o n t r o l l i n g a c t i v i t y f o r Chapter 4 w i l l be t o develop and compile t h e des ign c r i t e r i a f o r t h e mine, e s p e c i a l l y i n t h e i s o l a t e d waste s to rage a r e a s .

Chapters 5 and 6 should be s t a r t e d a s soon a s p o s s i b l e a f t e r t he i n i t i a t i o n of Chapters 3 , 4 and 9.

Chapter 6 - The key c o n t r o l l i n g a c t i v i t y f o r Chapter 6 i s t o i d e n t i f y t h e i tems of s a f e t y concern i n Sec t ion 6.1.4. Chapter 6 r e q u i r e s da t a from Chapters 3, 4 and 9 f o r i t s development and proceeds concurren t ly .

Chapter 5 - The key a c t i v i t i e s of Chapter 5 w i l l be those t h a t desc r ibe t h e s t r u c t u r a l foundat ion des ign of b u i l d i n g s , mine and mine s h a f t s , and a l l underground f a c i l i t i e s . A p r e r e q u i s i t e t o completing t h i s chap te r i s the s i t e bor ings a s w e l l a s geol 'ogical and se i smic da t a from Chapter 3. Process system des ign f e a t u r e s from Chapter 6 determine t h e des ign of above and below ground f a c i l i t i e s descr ibed i n t h i s chapter . The codes and s t anda rds re ferenced i n Chapters 5 and 6 a r e used t o cross-check and up-date c r i t e r i a of Chapter 4.

Chapters 7 and 8 r e q u i r e i npu t from Chapters 3 , 4 , 5 and 6; t h e r e f o r e , they cannot be p roduc t ive ly i n i t i a t e d u n t i l a rough d r a f t copy of t hese p r e r e q u i s i t e c h a p t e t s have been prepared.

Chapter 7 - Thi s c h a p t e r p re sen t s t h e des ign b a s i s and suppor t ing a n a l y s i s f o r demonstrat ing t h a t a l l r a d i o a c t i v e and non-rad ioac t ive waste m a t e r i a l s generated o n - s i t e w i l l be contained s a f e l y over the o p e r a t i o n a l l i f e of t h e waste i s o l a t i o n f a c i l i t y . This chap te r may a l s o provide g u i d e l i n e s f o r o f f - s i t e d i s p o s a l of s o l i d was tes and contaminated equipment should t h i s method be se l ec t ed . The key c o n t r o l l i n g a c t i v i t y i s the i d e n t i f i c a t i o n of o n - s i t e generated was tes and f o r t h i s de te rmina t ion t h e da t a of Chapter 6 i s a p r e r e q u i s i t e . Any c r e d i b l e a c c i d e n t s r e l a t e d

t o waste confinement and management a r e c o r r e l a t e d wi th Chapter 9. The c r i t e r i a used a s des ign bases a r e c ros s - checked a g a i n s t r a d i a t i o n p r o t e c t i o n c r i t e r i a contained i n Chapter 8 and a g a i n s t o v e r a l l c r i t e r i a i n Chapter 4.

Chapter 8 - The o f f - s i t e dose assessment i s t h e key c o n t r o l l i n g a c t i v i t y i n Chapter 8 , and the development of t h i s chap te r r e q u i r e s i npu t from Chapters 3 , 5 , 6 , 7 and 9 a s wel l a s a working environmental dosimetry model.

Chapters 10, 11 and 12 have a minimum of i n t e r f a c i n g and can be u t i l i z e d t o smooth o u t t he manpower loading dur ing SAR d r a f t p repara t ion .

Chapter 10 - This chap te r r e q u i r e s a cons ide ra t ion o f app ropr i a t e r e g u l a t o r y requirements and inpu t from Chapter 6. This chap te r can be considered t o be a low l e v e l o f - e f f o r t a c t i v i t y t o be developed du r ing s l a c k per iods and a s such, should not have any apprec i ab le impact on t h e o v e r a l l schedule.

C h a p t e r l l - Th i s chap te r on t e c h n i c a l s p e c i f i c a t i o n s can a l s o be considered a s a low l e v e l e f f o r t a c t i v i t y r e q u i r i n g inpu t mainly from

. Chapter 6. Development of t h i s chap te r should no t impact s i g n i f i c a n t l y on the o v e r a l l schedule.

Chapter12 - Thi s chap te r i s e s s e n t i a l l y independent of t h e o the r SAR chap te r s and t akes i t s guidance mainly from published r e g u l a t i o n s and pa s t exper ience of t he l i censee .

Chapters 1 and 2 a r e summary i n con ten t s o t h a t t h e i r l a t e s t a r t i s necessary.

Chapter 1 - This chap te r i s a gene ra l d e s c r i p t i o n o f the key f e a t u r e s of t he p l a n t . A s t h e schedule shows,the w r i t i n g of t h i s chap te r should begin when the f i r s t d r a f t s of a l l o t h e r c h a p t e r s of t h e PSAR a r e e i t h e r completed o r a r e over 70 percent complete. Subchapter 1.5 i tems r e q u i r i n g f i ~ t t h e r t e c h n i c a l in format ion w i l l most l i k e l y r e q u i r e i n p u t from Chapters . 5 . and 6.

Chapter 2 - The l a s t scheduled chap te r sununarizes a l l a s p e c t s which r e l a t e t o provid ing safety f o r the p r n t e c t i o n of opera t ing personnel and the pub l i c dur ing the a c t i v e ope ra t ing per iod and t h e extended pass ive per iod . The r a d i o l o g i c a l impact of normal and abnormal ope ra t ions i s the key a c t i v i t y and r e q u i r e s i n p u t mainly from Chapters 3 , ,5, 6 , 8 and 9.

The fo l lowing obse rva t ions a r e o f f e r e d f o r guidance a s a r e s u l t of a review of ' t he PSAR sctiedule.

Due t o the l a t e s e l e c t i o n of t he intended s i t e , p a r a l l e l e f f o r t s i n s i t e da ta c o l l e c t i o n a t s e v e r a l s i t e s may be r equ i r ed . Th i s w i l l then r e q u i r e a s u b s t a n t i a l l y l a r g e r da ta r educ t ion program l ead ing t o e i t h e r a number of d r a f t s of Chapter 3 corresponding t o t he va r ious candida te s i t e s o r t h e gene ra t ion of a combined, enveloping, Chapter 3 ( S i t e C h a r a c t e r i s t i c s ) . I n e i t h e r ca se the work load would be g r e a t e r than nornially encountered i n n u c l e a r powet'p1.ant SAR development and the r i s k may inc lude a Chapter 5 , " ~ a c i . i i t ~ ~ e s i g a " ftlcompe t i b l r w i t l i the s e l e c t e d o i t c o .

2. The over lapping of T i t l e 1 Engineering (Prel iminary Design) and t h e PSAR chap te r development w i l l r e q u i r e c l o s e i n t e g r a t i o n i n o r d e r f o r t h e SAR t o r e f l e c t t he c u r r e n t s t a t u s of des ign . Advance c o n t a c t wi th the T i t l e 1 engineer w i l l be necessary so t h a t good q u a l i t y gene ra l arrangement drawings w i l l be a v a i l a b l e f o r i n c l u s i o n i n Chapter 5.

3. With t h e overlapping of the des ign , s i t e s e l e c t i o n and PSAR p repa ra t ion , i t i s almost c e r t a i n t h a t . PSAR Amendments w i l l be requi red and, con- sequent ly , should be planned f o r .

4 . The development of a c c i d e n t s c e n a r i o s must be based on conceptua l design. This w i l l then r e q u i r e a cons t an t in format ion exchange between t h e a c c i d e n t s t u d i e s group and t h e group developing T i t l e 1 des ign t o i n s u r e t h a t a l l c r e d i b l e a c c i d e n t s a r e being included and a d d i t i o n a l l y , t h a t those a l r e a d y addressed a r e s t i l l v a l i d f o r i nco rpora t ion i n t o t h e PSAR.

5. P r i o r exper ience on a f i r s t o f a kind f a c i l i t y SAR i n d i c a t e s t h a t a c h a p t e r by chap te r o u t l i n e prepared and reviewed p r i o r t o t h e -commence- ment of chap te r d r a f t p repa ra t ion w i l l h e l p s i g n i f i c a n t l y i n p repa ra t ion e f f i c i e n c y , document c o n t i n u i t y and c h a p t e r c ros s - r e fe renc ing . Th i s o u t l i n e development a c t i v i t y i s shown on F igu re 2 i n p a r a l l e l w i th s t u d i e s and i n v e s t i g a t i o n s .

V I . SUGGESTIONS FOR ADDITIONAL SAR SUPPORT EFFORTS

It i s recommended t h a t t h e fo l lowing e f f o r t s be undertaken w i t h i n the time frames ind ica t ed i n o r d e r t o f a c i l i t a t e t h e t imely completion of SAR p r e p a r a t i o n a c t i v i t i e s f o r t h e waste r e p o s i t o r y f a c i l i t y :

1. I n i t i a t e a s tudy of acc iden t s c e n a r i o s f o r i s o l a t e d was tes s t o r e d i n deep geologic formations based upon t h e conceptua l f a c i l i t y des ign . T h i s s tudy should mechan i s t i ca l ly d e f i n e the p o t e n t i a l pa ths of waste r e l e a s e t o t h e biosphere and thus s e r v e a s t h e b a s i s f o r SAR Chapter 9 "Accident Sa fe ty Analys is ." A s the p re l imina ry des ign is def ined t h e s tudy should be expanded t o i nc lude f a i l u r e mode and mal funct ion even t s i n o rde r t o complete abnormal and a c c i d e n t i t ems which a r e t o be addressed i n Chapter 9. I n a d d i t i o n , t h i s s tudy should. provide the m a t e r i a l needed t o i n t e g r a t e SAR subchapter 3.7,'Summary of ( S i t e ) Condit ions A f f e c t i n g F a c i l i t y Cons t ruc t ion and Operat ing Requirements," subchapter 5.4 "Below Ground F a c i l i t i e s , " subchapter 6.1.4, " I d e n t i f i c a - t i o n of I tems f o r S a f e t y Analys is Concern" ( ~ i . o c e s s Systems), and the "Accident Sa fe ty Analysis" of Chapter 9.

The s tudy of acc ' ident s cena r ios should provide a comprehensive a n a l y s i s w i t h a t a b u l a t i o n of mal func t ions and a c c i d e n t s s o t h a t no unan t i c ipa t ed

. . c r e d i b l e even t s a r e discovered a t subsequent c r i t i c a i l i c e n s i n g s t ages . . I n a d d i t i o n , a review of t h e developed a c c i d e n t s cena r ios w i l l i n d i c a t e

t h e degree of SAR format and con ten t s u i t a b i l i t y by i d e n t i f y i n g a r e a s where a d d i t i o n a l f a c i l i t y d e s c r i p t i o n , des ign a n a l y s i s and/or engineered s a f e t y f e a t u r e s a r e r equ i r ed . Based upon t h e review, f i n a l mod i f i ca t ions could then be made t o t he proposed SAR format guide.

I f n o t a l r e a d y i n p rog res s , t h i s s t u d y should be s t a r t e d immediately and con t inue through the des ign phases up t o PSAR submi t t a l . F igu re 2 , PSAR Development Schedu'le, i n d i c a t e s t h a t t h i s a c t i v i t y . i s a p r e r e q u i s i t e t o Chapter 9 d r a f t p repa ra t ion .

2. Review a l l 10 d i v i s i o n s of t h e USNRC ~ e ~ u l a t o r ~ Guides f o r p o s s i b l e a p p l i c a b i l i t y t o t h e waste t e p n s i t n r y f a c i l i t y , I d e n t i f y those t h a t have d i r e c t a p p l i c a b i l i t y and those t h a t c o n t a i n some degree of phi losophy guidance f o r f a c i l i t y des ign , c o n s t r u c t i o n and/or ope ra t ion . Th i s a c t i v i t y w i l l provide guidance t o t h e des igne r s and a l s o a s s i s t i n l i c e n s i n g defense a c t i v i t i e s by supplying a ready r e fe rence of e x i s t i n g NRC c r i t e r i a .

To be of maximum b e n e f i t t h i s t a s k should be completed p r i o r t o the s t a r t of T i t l e 1 Engineering and then reviewed a g a i n p r i o r t o PSAR submi t t a l .