ML100082305
| ML100082305 | |
| Person / Time | |
|---|---|
| Site: | Washington State University |
| Issue date: | 01/25/2010 |
| From: | Dimeglio A Research and Test Reactors Licensing Branch |
| To: | Wall D Washington State Univ |
| DiMeglio A, NRR/DPR/PRTA, 301-415-0894 | |
| References | |
| TAC ME1589 | |
| Download: ML100082305 (4) | |
Text
From:
Lappert, Glenna Sent:
Monday, January 25, 2010 8:09 AM To:
Ganpat, Emily
Subject:
FW: draft RAIs Glenna Lappert Licensing Assistant, DPR/PRTA and PRTB Phone: 301-415-2552 Cell: 443-433-8117 Mailstop: O 12 D 00 Office: O 12 G1 From: Wall, Donald [1]
Sent: Wednesday, January 20, 2010 11:21 AM To: DiMeglio, Francis Cc: Lappert, Glenna
Subject:
RE: draft RAIs Ok, no problem.
Don From: DiMeglio, Francis [2]
Sent: Wednesday, January 20, 2010 5:57 AM To: Wall, Donald Cc: Lappert, Glenna
Subject:
draft RAIs
- Don, Please consider the copy of RAIs which I left with you after our discussion on January 13 a draft. It is docketed as a draft. The official copy of the RAIs will be officially transmitted soon.
Frank A. Francis Dimeglio 301 415 0894 E-mail Properties Mail Envelope Properties (BE1CC4A72435624D84F8699734202B3E1901F237D3)
Subject:
FW: draft RAIs Sent Date: 1/25/2010 8:09:41 AM Received Date: 1/25/2010 8:09:41 AM From: Lappert, Glenna
Created By: Glenna.Lappert@nrc.gov Recipients:
Emily.Ganpat@nrc.gov (Ganpat, Emily)
Tracking Status: None Post Office:
HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 12537 1/25/2010 Options Expiration Date:
Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received:
ENCLOSURE OFFICE OF NUCLEAR REACTOR REGULATION REQUEST FOR ADDITIONAL INFORMATION WASHINGTON STATE UNIVERSITY NUCLEAR REACTOR CENTER REACTOR LICENSE NO. R-76 DOCKET NO. 50-27 Technical Questions and Comments WASHINGTON STATE UNIVERSITY (WSU) 2002 SAFETY ANALYSIS REPROT (SAR)
CHAPTER
- 2.
SITE CHARACTERISTICS 2.1.2 POPULATION DISTRIBUTION RAI 2.1 Please update the data on population distribution and include the distance to the nearest permanent residence and dormitory.
- 3.
DESIGN of STRUCTURES, SYSTEMS, and COMPONENTS RAI 3.1 There are no explicit limitations requiring that the crane in the reactor building not be parked over the reactor pool. Please explain how the crane is operated and what preventive actions exist ensuring that the crane is securely located, when not in operation.
- 4.
REACTOR DESCRIPTION 4.2.4 STARTUP SOURCE RAI 4.1 Please identify the material of the cylinder that contains the antimony-beryllium startup source.
4.3 REACTOR TANK OR POOL RAI 4.2 a Discuss the reactor pool water level monitoring system, alarm levels and required responses from operator and/or university personnel, if remote alarm signal is present.
RAI 4.2 b Discuss potential draining pathways of reactor pool water leakage, operator responses and radioactivity monitoring before release to sewage system.
RAI 4.2 c Upon complete loss of coolant water would drain to floor and into sump. Discuss sump and holdup tank volume and radioactivity in coolant before releasing water to sewage.
- 7.
INSTRUMENTATION AND CONTROL SYSTEMS 7.3 REACTOR CONTROL SYSTEM RAI 7.1 The thermal hydraulic analysis of the converted WSU reactor core assumes a core water inlet temperature of 30ºC with an administrative limit of 50ºC. Please propose a technical specification (TS) limiting condition on water temperature or explain why a TS limit on water temperature is not needed.
- 9.
AUXILIARY SYSTEMS 9.1 HEATING, VENTILATION AND AIR CONDITIONING SYSTEMS RAI 9.1 The WSU reactor facility ventilation system is monitored for filter efficiency. Please discuss how the flow rate is verified since a flow of 2000 cubic feet/min (cfm) is taken credit for during the maximum hypothetical accident (MHA) public dose calculation.
- 11.
RADIATION PROTECTION PROGRAM AND WASTE MANAGEMENT 11.1.1 RADIATION SOURCES RAI 11.1 a Discuss occupational dose level from Ar-41during normal operation in the reactor room.
RAI 11.1 b Provide an estimate of the buildup of tritium in the pool water as a result of normal operation.
RAI 11.1 a Provide the volumetric flow rate of the facility exhaust system for the discharge of gaseous radioactive effluents (m3/sec, ft3/sec).
- 12.
CONDUCT OF OPERATIONS 12.1.3 STAFFING RAI 12.1 ANSI/ANS-15.1-1990, Section 6.1.3 (1) specifies the minimum staffing when the reactor is not secured. It calls for a senior reactor operator (SRO) to be readily available on call and specifies this as within 30 minutes or 15 miles of the facility. The SAR only specifies that the SRO can be reached by phone and does not address the ability to come to the site within a specified time. Please describe how WSU expects to adhere to the guidance of the ANSI/ANS standard.
- 14.
TECHNICAL SPECIFICATIONS RAI 14.1 In TS 3.10(4) the 25 mg explosive must be in a container that provided the pressure produced upon detonation of the explosive has been calculated and/or experimentally demonstrated to be less than the design pressure of the container. In RG 2.2.1c the design should be such that it can withstand twice the expected stresses. Please discuss whether the word half should be inserted after less than in TS 3.10?