ML20195J232

Forwards Rev 7 to Trojan Nuclear Plant Defueled Sar. Attachment to Ltr Includes Brief Description of Each Change Included in Rev

ML20195J232
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	11/17/1998
From:	Quennoz S PORTLAND GENERAL ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20195J235	List: ML20195J232 ML20195J250
References
VPN-053-98, VPN-53-98, NUDOCS 9811240219
Download: ML20195J232 (5)

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Portland General Electrk Company

~ TrojanNudearPlant 71760 Columbia River Hwy Rainier OR 97048 (503) 356-3713 November 17,1998 VPN-053-98 Trojan Nuclear Plant Docket 50-344 License NPF-1 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Trojan Nuclear Plant Defueled Safety Analysis Report. Revision 7 The enclosure to this letter provides one original and ten copies of Revision 7 to the Trojan Nuclear Plant Defueled Safety Analysis Report (DSAR). Revision 7 includes changes to the DSAR since the last submittal. The attachment to this letter includes a brief description of each change included in this revision. Text changes are identified in the DSAR text by margin bars adjacent to the change and revision numbers at the page bottom. Each copy of Revision 7 is accompanied by a set ofinstructions for insertion into the DSAR.

I hereby certify that Revision 7 accurately presents changes made since Revision 6 necessary to reflect information and analyses submitted to the Commission or prepared pursuant to Commission requirements.

Sincerely, 1

9911240219 981117 Sephen M Quennoz  !

PDR ADOCK 05000344 Trojan Site Executive l W PDR l Attachment i

Enclosure i l l c: D. Stewart-Smith, OOE l

[ R. A. Scarano, NRC Region IV l L. H. Thonus, NRC, NRR

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t Attachment to VPN-053-98 November 17,1998 Page1of3 Description of Channes The following changes to the DSAR implement changes pursuant to the 10 CFR 50.59 process:

LDCR 98-014 Changes to Sections 3.3,4.0, and 4.3 delete the Demineralized Water System and the Primary Makeup Water Systems as designated makeup water sources for the Spent Fuel Pool. In their place, two different makeup sources are designated as capable of providing adequate flowrates of water to the Spent Fuel Pool in the event of a loss of forced pool cooling of the Spent Fuel Pool. The new makeup sources are the Domestic (Potable) Water system and portable (gas-powered) pump (s) taking suction from the Columbia River. Specific flow paths to the Spent Fuel Pool are controlled by plant procedures. Changes were made per Defueled Plant Modification Request (DPMR)98-001.

The status of the 'A' service water pump is changed from out of service due to l corrective maintenance to out of service due to no immediate need to reinstall it.

l The 'C' service water pump is lined up to provide flow to the 'A' service water train flowpath.

LDCR 98-018 Changes to Sections 3.3,4.0,4.1, and 4.3; Table 3.2; and Figures 3.3-1 and 3.3-4 L

identify the new Modular Spent Fuel Pool Cooling and Cleanup System installed ,

L per DPMR 97-026, Design Change Package (DCP) 01. The System performs l Spent Fuel Pool demineralizer and filtration functions. The System consists of l pumps, filter, demineralizer, air coolers, radiation detector, suction and discharge l piping, and a floating pool skimmer. The cleanup portion of this system is installed and was tested to show it is fully capable of meeting the Spent Fuel Pool purification design requirements under this DPMR. Reference to the

! original Spent Fuel Pool Demineralizer System is deleted. (Note: Figure 3.3-1 was deleted by changes incorporated by LDCR 98-033) ,

LDCR 98-019 Changes to Section 5.3.2 denote deactivation of one dirty waste drain tank l pump. Changes to Section 5.5.2 reflect the location of PRM 9 monitoring i indicators, controis, and alarms. A minor editorial change was made to y Section 2.5.1.

LDCR 98-028 Changes to Figure 3.2-1 incorporate plant modifications made by DPMR 97-012, DCP 03. The change includes a modification to the 45 ft elevation of the Fuel Building crane bay floor slab to show an installed, j embedded impact limiter installed in preparation for Independent Spent Fuel Storage Installation activities.

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LDCR 98-029 Changes to Section 3.3 and Figures 3.3-3 and 5.3-1 reflect modifications made i by DPMR 97-007, DCP 19. Modifications include electrical deactivation and L

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Attachment to VPN-053-98 November 17,1998

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mechanical isolation and removal of the 'A' train of the Service Water System

, upstream of strainer F-101 A. These modifications support the installation of an l impact limiter in the floor of the Fuel Building crane bay. References to I multiple Service Water System strainers, flow to selected room coolers, and the i

j existence of two loops are deleted. Revision to Figure 5.3 1 changes " Service )

l Water" to " Flush Water" as the PERM 9 flush water description. l l (Note: Figurc 3.3-3 was deleted by changes incorporated by LDCR 98-033.)

l LDCR 98-030 Changes reflect modifications to the Liquid Radioactive Waste Processing System flowpath (DPMR 98-006, DCP 01) and rerouting of some equipment ,

drains to floor drains (DPMR 98-006, DCP 05). Modifications to the Liquid Radioactive Waste Processing System include relocation of some existing components and installation of new process flowpaths to minimize System operation above the 45 ft elevation. Clean and dirty waste tank discharge are l l routed through a filter to the treated waste monitor tanks, which can be sampled l l locally and processed further or discharged directly (per Chemistry Department recommendations). Changes are reflected in Sections 1.2,3.3,5.3, and 5.5; l Figures 5.3-1 and 5.4-1; and Table 5.5-1. Figures 5.3-2 and 5.3-3 are deleted. l l (Note: Figure 5.4-1 was deleted by changes incorporated by LDCR 98-034.)

LDCR 98-033 Modifications made by DPMR 97-026 allow isolation of Spent Fuel Pool penetrations and minimize the potential for inadvertent Spent Fuel Pool water inventory loss. Modifications involve installation of the cooling portion of the new Modular Spent Fuel Pool Cooling and Cleanup System. Changes to the DSAR delete reference to the original Spent Fuel Pool Cooling System and other support systems formerly supporting cooling functions (i.e., the Component l Cooling Water System and portions of the Service Water System). Changes are reflected in Sections 2.2,2.4,3.3,4.0,4.1,4.3,4.4,5.2, and 6.3; Figures 3.3-1, 3.3-2, and 3.3-3 are deleted. Figure 3.3-4; and Tables 3.5-1 and 3.2-5 are revised to reflect the changes.

LDCR 98-034 Changes reflect modifications made under DPMR 98-006, DCP 02. Various portions of the Liquid and Solid Radioactive Waste Systems no longer required to support plant operation are deactivated. Affected equipment includes the l clean waste receiver tanks along with associated pumps and piping; the spent i resin storage tank along with associated pumps and piping; and the primary I

sample sink. Sections 3.3,5.3, and 5.4; and Figures 3.3-1 and 5.3-1 are revised l to incorporate the changes. Figure 5.4-1 was deleted. (Note: Figure 3.3-1 was deleted by changes from LDCR 98-033.)

l LDCR 98-036 Modifications made by DPMR 98-012, DCP 03, deactivate and remove the Spent Fuel Pool exhaust post charcoal filter HEPA filters. The filters are no l

i -i Attachment to VPN-053-98 i -November 17,1998 Page 3 of 3 longer required because the charcoal filters upstream have been removed.

I Figure 5.2-6 is revised to reflect the modification.

LDCR 98-048 DSAR Sections 2.3.2.1.2 and 2.3.2.3 are revised and Section 2.3.3 is deleted.

! Changes remove reference to data collected at the 500' Meteorological Tower.

The Tower was deactivated. Historical meteorological data is now depended upon as a basis for default meteorological parameters.

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