ML20246C597
| ML20246C597 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 08/18/1989 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 88-603A, NUDOCS 8908250034 | |
| Download: ML20246C597 (2) | |
Text
x-3, VIRcINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 August 18, 1989 U. S. Nuclear Regulatory Commission Serial No. 88-603A
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Attn: Document Control Desk PES /NPW/cdk Washington, D.C.
20555 Docket Nos.
50-338 50-339 License Nos. NPF-4 NPF-7 Gentlemen:
VIRGINIA ELECTRIC AND POWER COMPANY 1 AND 2 PROPOSED TECHNICAL SPECIFICATION CHANGE FUEL tnKIC $tNI INCREASE-SUPPLEntNI NO. 1 By letter' dated September.30,1988 (Serial No.88-603), Virginia Electric and Power Company requested amendments, in the form of changes to the Technical Specifications, to Operating Licenses NPF-4 and NPF-7 for North Anna Units 1 and 2, respectively.
The proposed changes would increase the allowable enrichment of fuel assemblies irradiated at North Anna to 4.3 w/o U-235. As a result of discussions with the NRC Staff on July 7,
1989, we are providing supplemental information related to environmental effects of higher enrichment fuel to support this proposed Technical Specification change request.
As discussed in the September letter, the safety considerations associated with reactor operation with-higher enrichment and irradiation were previously addressed by Virginia Electric and Power Company and have been evaluated by the m
NRC. The conclusion of these evaluations was that changes such as the proposed increase in enrichment to 4.3 w/o U-235 and irradiation to the currently licensed batch average discharge burnup limit of 45,000 MWD /MTU would not adversely impact plant safety or have an adverse impact on the probability of I
any accident. As a result of the proposed enrichment increase and operation to the licensed burnup limit, no changes are being made in the types or amounts of any radiological effluents that may be released offsite.
Electric and Power Company has reviewed its current and proposed fuel Virginia use at North Anna and has determined the "NRC Assessment of the Environmental l
Effects of Transportation resulting from Extended Fuel Enrichment and Irradiation" as provided in the Federal Register (53 FR 30355) is applicable to North Anna.
Under the current fuel management scheme, sixty-four fresh assemblies are typically loaded into the North Anna units every eighteen months
'in reload cores. At the current Technical Specification fuel enrichment limit j
of'4.1 w/o U-235, the batch average bqrnups are limited to a value of i
approximately 41,000 MWD /MTU.
As a result of the proposed increase in the
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enrichment limit to 4.3 w/o U-235, approximately sixty feed assemblies would be i
loaded into North Anna reload cores every eighteen months. The batch average l
' discharge burnup would approach the currently licensed limit of 45,000 MWD /MTU.
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The' current enrichment 'and burnup levels as well as the proposed enrichment and
'.burnup levels:are within the' limits for these parameters assumed in the NRC 4
> staff. analysis.-performed pursuant' to 10 CFR 51.52(b) and documented in Federal Register'(53 FR.30355).
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' Virginia-Electric.. and Power Company. has.also reviewed the NRC Staff's Lg" '
Environmental Assessment contained in the enclosure to an NRC letter dated -
fpril 21, 1986 which transmitted Amendments No. 76 and 65.
.This assessment related to-transshipment: of spent fuel from Surry to North Anna. The report ststed that-the environmental impact of the proposed transshipment of spent fuel. from Surry~ to North Anna was well within the. scope of Table S-4 asset forth in 10 CFR 51.52(c) and need not be addressed on a site specific basis.
The Environmental' Assessment concluded that; the radiological impact on the environment of the. proposed transshipment would be less than that shown in
. Table S-4 by. a factor of at least 30 and well within the scope of Table S-4.
.This' evaluation is not' hpacted by the proposed increase in enrichment.
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Virginia Electric and Power Company concludes that, since the enrichment limits and discharge burnups for North Anna fuel are below the limits assumed for these parameters in the Federal Register (53 FR 30355) analysis, this analysis is:.. applicable to the North Anna facilities and Virginia Electric and Power Company's intended fuel use. Therefore, Virginia Electric and Power Company adopts the ese of the assessment to the environmental effect of the transportation of high burnup fuel, provided in the Federal Register (53 FR
'30355), to satisfy the requirements of 10 CFR 51.52(b).
If you have any additional questions concerning this issue, please contact us at your earliest convenience.
Very truly yours,
~
W. L. St.ewart
" Senior Vice President - Power cc:
U. S. Nuclear Regulatory Commission Region II 101.Marietta Street, N. W.
Suite 2900 Atlanta, Georgia 30323 Mr. J. L. Caldwell NRC Senior Resident Inspector North Anna Power Station I
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