ML20137C599

Application for Amends to Licenses NPF-37 & NPF-66,reducing Allowable Unit 1 RCS Dose Equivalent I-131 from 0.35 Uci/ Gram to 0.20 Uci/Gram for Remainder of Cycle 8

ML20137C599
Person / Time
Site:	Byron
Issue date:	03/14/1997
From:	Hosmer J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20137C602	List: ML20137C599 ML20137C638
References
NUDOCS 9703250054
Download: ML20137C599 (2)

Text

l Q)mmonweahh Edison Co npany I 400 Opus Place j

Downers Grove, IL 60315-5701 l

March 14, 1997

(

l United States Nuclear Regulatory Commission Washington, D.C. 20555 Attention: NRC Document Control Desk

Subject:

Byron Nuclear Power Station, Units 1 and 2 Facility Ope 2 ting Licenses NPF-37 and NPF-66 NRC Doc _ et Numbers: 50-454 and 50-455

" Supplement to Specific Activity Technical Specification Amendment Request'.

Reference:

J. Hosmer letter to the Nuclear Regulatory Commission dated January 31,1997, transmitting Technical Specification Amendment Request for Specific Activity The Reference letter transmitted the Commonwealth Edison Company's (Comed) proposal to amend Appendix A, Technical Specificcions, for Facility Operating Licenses NPF-37 and NPF-66, for Byron Nuclear Power Station, Units 1 & 2, respectively. Comed proposed to revise Technical Specification Section 3.4.8

" Specific Activity", Table 3.4-1 and Technical Specification Bases 3.4.8. for Byron Unit 1. These changes will reduce the allowable Unit 1 Reactor Coolant System l

Dose Equivalent Iodine-131 from 0.35 microCuries/ gram to 0.20 microCuries/ gram for the remainder of Cycle 8. This amendment is necessary in order to provide l

additional margin to the maximum site allowable primary to secondary leakage limit.

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9703250054 970314 I

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l U.S. Nuclear Regulatory Commission March 14,1997 f

l Attachment B of the Reference letter contained the Technical Specification marked-up.

l pages, which did not adequately reflect the requested amendment. Therefore, Comed is

. forwarding the attached pages which supersede that which was previously transmitted.

Comed apologizes for this inconvenience. If you have any questions concerning this correspondence, please contact this ofIice.

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Sincerely, n/%

l John B. Hosmer Engineering Vice President l

l Attachment cc:

D. Lynch, Senior Project Manager-NRR S. Burgess, Senior Resident Inspector-Byron G. Dick, Byron /Braidwood Project Manager-NRR A. B. Beach, Regional Administrator-RIII Office of Nuclear Safety-IDNS 1

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