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%*& i 1 MiM8 ML10Rt m i Fult: Elinor Adonsan, Chief, !.B #4, A FRtsta L. G. Italaien, Chief. Accident Evelvation Jranco, AI SuhECit ACCEPTAM REVIEW OF WPP55-1 ENVIRG.T tE' T4. EP AT
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...z J.18.4WlM 9f he.itenneroley 50Ctton has reviewed the 'PP55-1 & 4 Environ-R gert % aggardanes,wlth yeur February 10, 1932 request.
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ffTEOROLOGY ACCEPTANCE REVIEW OF WPPSS-1 & 4 ENVIRONMENTAL REPORT I
k The meteorology information provided in the +nvirorrnentsi report has considered
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the inesct of the environment on the plant and the possible impact of the plant 8
on. the environment. The'_ meteorology information provided is responsive to 9
9uldence given in NUREG-0555 (2/79) and is acceptable. However, in section 6.1.3.2. the short tem diffusion estimates followed Regulatory Guide 1.4 l
1 which.is inappropriate, he0.ing been replaced by Regulatory cuide 1.145.
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b section 7.1.2, met [ mis called for in a June 13, 1980 Federal Register notice, ll
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.1 1.e. probab111stic' risk'essessment of a plant accident were not used.
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Regelatory Guide-Id45 'ies,used instead of a CRAC type analysis, with standard
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e Field tests at th Menford site have shown modifications to the o's are needed
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Thos the accident evaluations should use a probabilistic method in Chapter 7 4
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and Regulatory Guide.l.145 for Chapter 6.
In both cases, modified o's should he used.
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