ML090720057

Conveys Draft RAI Regarding Fire Protection for the Proposed Extended Power Uprate Amendment

ML090720057
Person / Time
Site:	Monticello
Issue date:	03/12/2009
From:	Tam P Plant Licensing Branch III
To:	Pointer K, Salamon G Exelon Nuclear
Tam P
References
TAC MD9990
Download: ML090720057 (3)

Text

Accession No. ML090720057 From: Peter Tam Sent: Thursday, March 12, 2009 5:39 PM To: 'Pointer, Kenneth'; 'Salamon, Gabor' Cc: Naeem Iqbal

Subject:

Monticello - Draft RAI from Fire Protection Branch re. Proposed EPU Amendment (TAC MD9990)

Ken:

Our review of your 11/5/09 application for an extended power uprate amendment is ongoing. Our Fire Protection Branch has provided the following draft RAI questions. Please contact me to set up a conference call to discuss these questions:

Fire Protection RAI #1 to Matrix 5, Supplemental Fire Protection Review Criteria, Plant Systems, of NRR RS-001, Revision 0, Review Standard for Extended Power Uprates, states that power uprates typically result in increases in decay heat generation following plant trips. These increases in decay heat usually do not affect the elements of a fire protection program related to (1) administrative controls, (2) fire suppression and detection systems, (3) fire barriers, (4) fire protection responsibilities of plant personnel, and (5) procedures and resources necessary for the repair of systems required to achieve and maintain cold shutdown. In addition, an increase in decay heat will usually not result in an increase in the potential for a radiological release resulting from a fire. However, the licensee's LAR should confirm that these elements are not impacted by the extended power uprate.

We note that Enclosure 5 to L-MT-08-052, Section 2.5.1.4, Fire Protection, specifically addresses only item (2) above. Please provide statements to address items (1) and (3) through (5), and a statement confirming no increase in the potential for a radiological release resulting from a fire.

Fire Protection RAI #2 The results of the Appendix R evaluation for EPU are provided in Section 2.5.1.4, Fire Protection, of Enclosure 5 to L-MT-08-052. However, this section does not discuss the time necessary for the repair of systems required to achieve and maintain cold shutdown nor the increase in decay heat generation following plant trips. Please verify that the plant can meet the 72- hours requirements in both Title 10 of the Code of Federal Regulations Part 50, Appendix R, Sections III.G.1.b and III.L, with increased decay heat at EPU conditions.

Fire Protection RAI #3 We note that Enclosure 5 to L-MT-08-052, Section 2.5.1.4, Fire Protection, states that the Appendix R fire event was analyzed for the two cases at EPU conditions. The licensee stated that the operator actions required to mitigate the consequences of a fire are not affected nor is there a need for any new operator actions. Please verify that additional heat in the plant environment from the EPU will not (1) interfere with required operator manual actions being performed at their designated time, or (2) require any new operator actions.

Fire Protection RAI #4 Some plants credit aspects of their fire protection system for other than fire protection activities, e.g., utilizing the fire water pumps and water supply as backup cooling or inventory for non-primary reactor systems. If the MNGP credits its fire protection system in this way, the EPU application should identify the specific situations and discuss to what extent, if any, the EPU affects these non-fire-protection aspects of the plant fire protection system. If MNGP does not take such credit, please verify this as well.

This e-mail aims solely to prepare you and others for the requested conference call. This e-mail does not convey a formal NRC staff position, and does not formally request for additional information.

Peter S. Tam, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Tel. 301-415-1451 E-mail Properties Mail Envelope Properties (C56E360E9D804F4B95BC673F886381E71D99BB6C49)

Subject:

Monticello - Draft RAI from Fire Protection Branch re. Proposed EPU Amendment (TAC MD9990)

Sent Date: 03/12/2009 5:39:17 PM Received Date: 03/12/2009 5:39:00 PM From: Peter Tam Created By: Peter.Tam@nrc.gov Recipients:

Kenneth.Pointer@xenuclear.com ('Pointer, Kenneth')

Tracking Status: None Gabor.Salamon@xenuclear.com ('Salamon, Gabor')

Tracking Status: None Naeem.Iqbal@nrc.gov (Naeem Iqbal)

Tracking Status: None Post Office:

HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 16880 03/12/2009 Options

Expiration Date:

Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received: