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Forwards safety evaluation of proposed addition of second containment isolation valve for Penetration 108 as discussed in Section 4.22.2 of NUREG-0821.Concurs w/util 850515 contention that addl valve unnecessary,per GDC 55.

Accession Number: ML17261A406

Date Released: Saturday, November 7, 2020

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• ML17261A403 - Forwards safety evaluation of proposed addition of second containment isolation valve for Penetration 108 as discussed in Section 4.22.2 of NUREG-0821.Concurs w/util 850515 contention that addl valve unnecessary,per GDC 55. (2 page(s), 1/30/1987)
• ML17261A408 - Safety evaluation re redundant valve at Penetration 108,per integrated plant SAR (NUREG-0821),Section 4.22.2 (SEP Topic VI-4.Addition of valve unnecessary,per GDC 55. (5 page(s), 1/30/1987)