ML19326B813
| ML19326B813 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 12/22/1975 |
| From: | Cavanaugh W ARKANSAS POWER & LIGHT CO. |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| References | |
| 14251, NUDOCS 8004180563 | |
| Download: ML19326B813 (4) | |
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Arkansas Power & Light o'? ATE O F DC C DATE isEC'O LTH TWX RPT OTHER Little Rock, A k.
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M XXXX 40 50-313 DESCRIPTION: Ltr requesting withholding ENCLOSURES: Proposed TechSpec Charg es to pursuant to Sec. 2.790....& trans the OL/DPR 51....(Non-Prop).....
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.50-313 DOCKET NO.
DATE:
1-7-75 NOTE TO mc AND/OR LOCAL PUBLIC DOCUMENT ROOMS The following item submittad with Ictter dated 12-22-7'S from Ark. Power & Light is being withheld from public disclosure, pending review, in accordance with Section 2.790.
PROPRIETARY INFOR'4ATION Calcultion Summary Sheet E LLh Regulatory File ' loom t
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M8t01'y Docket fik H 2L PI N G BUILO A n sc A N S A S ARK ANS AS POWER & LIGHT COMPANY sTs 4g TAEETs. urrLE AOcx. A AK ANSAS 722C3. (500 371-4000 eb d ', e
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Director of duelear Reactor Regulation f;GC Attn:
Mr. D. L. Ziemann, Chief Operating 'leactors Branch #2 Division of Reactor Licensing U. S. Nuclear Regulatory Commission Washington, D. C.
20555
Subject:
Arkansas Power & Light Company Arkansas Nuclear One-Unit 1 Docket No. 50-313 License No. DPR-51 Proposed Technical Specification Changes Gentlemen:
Your letter of November 6,1975 indicated that insufficient safety analysis was included in our letter of October 7,1975 to facilitate your review of the requested change to the specification concerning the Reactor Building Spray System tanks level and chemical concentra-tion limits.
By this letter we transmit to you a copy of Babcock 6 Wilcox's calculation which was used as the basis for this proposed change.
It should be noted that we have altered some of the levels and chemical concentrations slightly from those presented in the calculation to aid the plant operators; i.e., we have centered the nominal value within the specified ranges so that the range on both sides of the nominal value will be equal.
In some cases this has decreased the range suggested in the B5W calculation and in no case was the range expanded.
Therefore,
the limits are still conservative. The values as they appear in the pro-posed specification and in the calculation are as follows for comparison.
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j 14251 T A x A AYING, INVE STO A OWNEO MEMBE A MlOOLE SOUTH UTILITIES SYSTEM
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,; Mr.* D. L. Ziemann
~ Dec;mber 22, 197S Proposed Parameter (units)
Tech Spec Value Calculation Value BWST level (ft.)
38.5 2.0 38.S+d BWST Boron concentration (ppmb) 2270 0 2270+200
-0 Sodium Riosulfate tank level (ft.)
31 1.0 il 1.0 Sodium Thiosulfato concentration (wt.%)
19.9 0.9 20.6jj Sodium Hydroxide tank level (ft.)
31 1.0 31 1.0 Sodium Hydroxide concentration (wt.%)
14.9:0.3 14.8+y It is felt that these changes to the values presented in the B6W calcula-tion are still conservative and will not affect the sump pH or Reactor Building Spray concentrations adversely.
Certain information contained in the enclosed calculation is proprietary and pursuant to Section 2.790, 10CFR Part 2, it is requested that this infomation be withheld from publie disclosure.
Also, in accordance with 10CFR Section 2.790(b) it is recognized that withholding this in-fomation from public inspection shall not effect the right, if any, of persons properly and directly concerned to inspect this information.
Bis calculation has been classified proprietary as certain information contained herein is not found in literature and use by a competitor would substantially decrease his expenditures, in time and resources, in per-forming a similar. design calculation.
V truly yo f
,y William Ca-augh II hhnager, Nuclear Ser 'ces WC:tw 1
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Before The UNITED STATES ATOMIC ENERGY COMMISSION Docket No. 50-313 In the Matter of Arkansas Power & Light Company ACKNOWLEDGMENT OF SERVICE OF AMENDMENT NO.1 TO APPLICATION I, Wayne Nordin, the duly elected, qualified anc.
acting County Judge of Pope County, Arkansas, ano, by virtue of that office, the Chief Executive Officer of Pope County, Arkansas, do hereby acknowledge that Arkansas Powar & Light Company has served upon me by personal delivery to me, a copy of its Amendment No. 1 dated February 14, 1968 to its Application to the United States Atomic Energy Commission for ' licenses to construct and i
operate asnuclear electric generating unit in Pope County, Arkansa s.
WI'INESS my hand and the official seal of my office on this j 1 day of February, 1968.
A* %
Qayne Nordin, 'Co n@ty Judge,
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Pope djunty, Arka(has
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