ML19346A300

Proposes That Request for Comments Re Use of Single Overall Performance Std Be Explicitly Incorporated Into Proposed Rule 10CFR60

ML19346A300
Person / Time
Issue date:	06/04/1981
From:	Ahearne J NRC COMMISSION (OCM)
To:	Bradford P, Gilinsky V, Hendrie J NRC COMMISSION (OCM)
Shared Package
ML19346A298	List: ML19346A297 ML19346A299 ML19346A300 ML19346A301 ML19346A302 ML19346A303
References
FRN-45FR31393, REF-10CFR9.7, RULE-PR-60 NUDOCS 8106190046
Download: ML19346A300 (4)

Text

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UNITED STATES

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NUCLEAR REGULATORY COMMISSION W ASHIN GTON, D.C. 20S55 g..

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June 4,1951

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Chaiman Hendrie Comissioner Gilinsky Comissioner,Bradford L

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Jon,n Ahearne,

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- PART SO ALTEfiATIVE h// - J6 7 5UBJECT:

In order to move forward witn the Part 60 recosec rule, I precose we in::r;: orate explicitly a request for cements regarding use of a single overall berfomance standard A: acned is a section :na can be-added 5; the end of the Supplementary Information Section of the pro-posec rule.

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Al te-native Aceroa:h -

L:r, :ne c:urse of - : Commis;ien's celiberation, i: :ee:mes evican that Lir : :e :: have ::r'icence in :ne abili y of a ;e: logical re::si:Ory ::

contain and.iscla e One wastes for an extence : erie: Of time, :ne reposit:ry mus: :onsist of multiole carriers.

The C:mmission believes the uncertainties inheren; in reif ance on the geological se :ing alene are too great :: de reconciled in an adjudicatory Or: cess.

The Commission further believes the staff presumptions that a respcsitory woul consis cf two. major engineered barriers (waste packages and uncergrounc facilit.ies) in accition to the natural barrier provided by the geological se :'ng are correct anc reasonable.

Having reached these conclusions, :ne Commission considers next whether or not and :: wna: level of cetails the perfen:ance :riteria f:r a geological repository shoulc be pres:ribed.

In this regard, the Commission :ensiders the fc110 wing three alternatives *:

1.

Prescribe a single overL11 performance standard that must be met.

The Stancard in this case would be One EPA stancarc; 2.

Drescribe minimum performance standards for ea:n of the major elements, in addition to requiring the overall system to meet the EPA stancards; and 9

Ce aile: cis:;ssions cr :ne a van a;es ar.: :bsa:varagesOfea:n:f r.ese a::e-a-ives are ;'ve-in A::er.:ix.' :: :--issi:- :1 e-

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2.

3.

Pres: ribe Oe: tiled numerica; 'cri eria on riti. cal en;inee 4ng attributes :# ne re::si cry system.

Ai:ernative 3 is consicerec overiy restri::ive on :ne cesign flexibility an: judged t0 be ina:propriate at this stage

1. :ne te:hn:1:gi:a! devel :-

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l ment.

Therefore, this A' ernative is quickly eliminated as a viable regula to ry. a cercach.

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l The Alternative 1 has as its principal advantage the fae: that 1: provides i

maximum flexibility and, thus, is able :: incorpora:e and :: a::iy up-

o-date technological innovations and knowledges :: :ne -e: si cry l

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Notwithstancing the concern over its practicali y f r. tne regulatory framework, the Commission cannot at this time elimina:e it fecm further consideration.

The Commission is, therefore, specifically t

j requesting the general public, par-icularly : nose from the :eennical l

Ocmmunities, to ec= ment on this point.

In relation to the first and the third alternatives :na; are Oriefly discussed above, Alternative 2 appears to offer a reasonabi.e anc ;ractical l

compromise.

In acdition to retaining the single overall performance stancard in Alternative 1 as the final performance objective, this ac;,r0ach estatiishes ne minimum :erf rmance :: jet.ives for ea:n of the

nres su:elecer.tal :arriers.

L'r'i e One :m-i s sic

es nc-ev.

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n ee n.me-i ai Ord:eria as ne its late yardst':ks :na: : e 'd:e see

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ne :mmissi:r. : es :elieve :nd: ~C9

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3 su tel emer.:t cesign goals onen : upiec vit:n -he geocnemica; serption

recesses :f :ne nos mecia woui: de esser.:ia! :: er.r.ac.:e 9e C:nrissi:r's sta'? conficen:e na: :ne 'ir.al J?A s ancart will be me.

nerefore,

ne precosed technical rule is esta:11shec upon this a::-caer..

It snoule ce nc:ed tna, in :ne event :na: :ne "c cissier. :e: ices ::

adop: the Alternative 1 approach in the final rulemaking, certions of the proposec rule (e.g., Section en r.;uirements for the geological setting) would have to be furtner studied anc possioly revised.

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