ML20116L538
| ML20116L538 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 08/09/1996 |
| From: | Feigenbaum T NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES SERVICE CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| B15833, TAC-M72440, NUDOCS 9608190069 | |
| Download: ML20116L538 (3) | |
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ggg 107 Selden Street, Berlin.CT 06037 Utilities System No,theast Utilities Service Company P.O. Box 270 Ilartford, CT 06141-0270 (203) 665-5000 AUG 9 1996 Docket No. 50-423 B15833 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Millstone Nuclear Power Station, Unit No. 3 Response to Request for Additional Information Regarding the Spent Fuel Pool (TAC No. M72440)
The purpose of this letter is to respond to a request from the Staff' and provide commitments to revise the Final Safety Analysis Report (Table 9.1-2). This revision will provide a detailed summary of the decay heat loads in the Spent Fuel Pool for the four (4) separate pool loading conditions identified in the FSAR.
The Unit 3 FSAR in Section 9.1.3.3 " Fuel Handling and Storage: Safety Evaluation" (Pages 9.1-8) states that " decay heat loads were calculated for a number of pool operating conditions at the end of pool life." These conditions are: 1) Normal refueling;
- 2) Normal plant operation; 3) End of cycle full-core off load; 4) Emergency full-core off load. Table 9.1-2 lists the results for conditions 1 and 4.
The information contained within Table 9.1-2 is based on a revised pool analysis which l'
was submitted on February 22,1991 (B13730) as a portion of License Amendment 60.
The two (2) pool conditions listed in the table are the Millstone Unit No. 3 conditions that correspond to the Standard Review Plan (SRP) 9.1-3 conditions.
The other conditions which were analyzed are described in the text of section 9.1.3.3 and are also included in the decay heat load plots shown in figures 9.1-7,9.1-7a and 9.1-8.
FSAR change request 96-MP3-22 was approved on July 13, 1996.
This char:ge identifies the decay heat loads for each of the four pool conditions in the appropriate portions of the text contained in FSAR section 9.1.3.3.
Table 9.1-2 will be updated i
i V. L. Rooney letter to T. C. Feigenbaum, " Spent Fuel Survey Commitments for Millstone Nuclear Power Station, Unit 3 (TAC No. M72440)," dated July 15, 1995.
- tSeigggg; goggga i
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U.'S. Nucl:ar Reguintory Commission B15833\\Page 2 prior to plant start up to incorporate all four (4) pool operating conditions identified l
within the text of FSAR section 9.1.3.3.
FSAR section 9.1.3.3 and Table 9.1-2 will also be revised following completion of Plant Design Change (PDCR) M3-96-0001. This change will support a full core off lot:d as a normal plant event in conformance with SRP 9.1-3 and will be completed prior to the next scheduled refueling outage. The revised text and table will be included in the first annual update following completion of the PDCR.
The following are NNECO's commitments made within this letter:
B15833-01:
The Millstone Nuclear Power Station, Unit 3 Final Safety Analysis Report will be updated to incorporate within Table 9.1-2 the decay heat loads for all four (4) pool operating conditions identified within the text of FSAR section 9.1.3.3. This update will be accomplished prior to plant start up.
B15833-02:
A revision to the Millstone Nuclear Power Station, Unit 3 Final Safety Analysis Report will be submitted at the next annual update. The change will incorporate changes to the text contained in FSAR section 9.1.3.3. and to Table 9.1-2. These changes will incorporate the decay heat loads for each of the four pool conditions.
B15833-03 A revision to the Millstone Nuclear Power Station, Unit 3 Final Safety Analysis Report will be submitted at the annual update following completion of Plant Design Change (PDCR) M3-96-0001. This change will incorporate the decay heat loads for each of the four pool conditions into Table 9.1-2.
If there are any further questions regarding this matter, please contact Mr. Richard T.
Laudenat at (860) 444-5248.
Very truly yours NORTHEAST NUCLEAR ENERGY COMPANY O
T. C. Feigenbaum N e-Executive Vice President and Chief Nuclear Officer
U.'S. Nuclear Regulatory Commission B15833\\Page 3 cc:
H. J. Miller, Region l Administrator V. L. Rooney, NRC Project Manager, Millstone Unit No. 3 A. C. Cerne, Senior Resident inspector, Millstone Unit No. 3 l
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