ML021510240

Errata to Ncsu Pulstar Annual Report. Corrects Amount of Argon-41 Released for Period of 07/01/2000 Through 06/30/2001

ML021510240
Person / Time
Site:	North Carolina State University
Issue date:	05/27/2002
From:	Wicks G North Carolina State University
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML021510240 (5)

Text

North Carolina State University is a land Nuclear Reactor Program grant university and a constituent institution of The University of North Carolina NC STATE UNIVEBSITY Department of Nuclear Engineering Campus Box 7909 Raleigh, NC 27695-7909 919.515.7294 919.513.1276 (fax)

URL:www.ne.ncsu.edu/NRP/reactor program.html 27 May 2002 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

NCSU PULSTAR Annual Report Docket No. 50-297

Dear Sir or Madam:

In compliance with Section 6.7.4 of the North Carolina State University PULSTAR Technical Specifications, our Nuclear Reactor Program staff has prepared two errata sheets correcting the amount of argon-41 released for the period 01 July 2000 through 30 June 2001. Please insert the corrected pages in your copy(ies). Please feel free to contact me at (919) 515-4601 if you have any questions or comments.

Sincerely,

ý 0 Gerald D. Wicks Acting Associate Director Nuclear Reactor Program

Page Two U. S. Nuclear Regulatory Commission Document Control Desk 27 May 2002 Ref: NCSU PULSTAR Annual Report Docket No. 50-297 copy w/attachments:

Dr. Nino A. Masnari, Dean College of Engineering Dr. Jim E. Riviere, Chairman Radiation Safety Committee Dr. Ayman I. Hawari, Chairman Reactor Safety and Audit Committee Dr. Paul J. Turinsky, Head Department of Nuclear Engineering Dr. Ayman I. Hawari, Director Nuclear Reactor Program Mr. David Rainer, Associate Vice Chancellor Environmental Health and Public Safety Ms. Amy Orders Radiation Safety Officer Mr. Stephen J. Bilyj Reactor Operations Manager Mr. Mark Poirier ANI/MAELU Mr. Alexander Adams, Jr.

Nuclear Regulatory Commission Mr. Craig Bassett Nuclear Regulatory Commission

PULSTAR REACTOR ANNUAL REPORT TO UNITED STATES NUCLEAR REGULATORY COMMISSION for 01 July 2000 - 30 June 2001 Revised NCSU NUCLEAR REACTOR PROGRAM 27 May 2002

Reference:

PULSTAR Technical Specifications Section 6.7.4 Docket No. 50-297 Department of Nuclear Engineering North Carolina State University Raleigh, North Carolina 27695

PULSTAR REACTOR ANNUAL REPORT 6 Revised DOCKET NUMBER 50-297 01 July 2000 - 30 June 2001 6.7.4.f Radioactive Effluent:

1. Liquid Waste (summarized by quarters)

i. Radioactivity Released During the Reporting Period:

(1) (2) (3) (4)1 (5)

No. of Total Tot. Vol. Diluent Tritium Period Batches i[Ci Liters Liters [tCi 01 Jul - 30 Sep 00 0 0 0 0 0 01 Oct - 31 Dec 00 0 0 0 0 0 01 Jan - 31 Mar 01 1 32 3,220 2.2E4 30 01Apr - 30 Jun 01 1 25 3,420 4.1E4 21 (6) 51 [Ci of tritium was released during this reporting period.

(7) 57 XCi total activity was released during this reporting period.

ii. Identification of Fission and Activation Products:

The gross beta-gamma activity of the batches in (1) above were less than 2 x 10-' pCi/ml. Isotopic analyses of these batches indicated low levels of typical corrosion and activation products. No fission products were detected.

iii. Disposition of Liquid Effluent not Releasable to Sanitary Sewer System:

All liquid effluent met the requirements of 10 CFR 20 for release to the sanitary sewer.

2. Gaseous Waste (summarized monthly)

i. Radioactivity Discharged During the Reporting Period (in Curies) for:

(1) Gases:

Total Time Year Period In Hours Curies 2000 01 Jul - 31 Jul 744 0 01 Aug - 31 Aug 744 0.138 01 Sep - 30 Sep 720 0.355 01 Oct- 31 Oct 744 0.127 01 Nov - 30 Nov 720 0.185 01 Dec - 31 Dec 744 0.087

'Based on gross beta activity only. Tritium did not requirefurther dilution.

PULSTAR REACTOR ANNUAL REPORT 7 Revised DOCKET NUMBER 50-297 01 July 2000 - 30 June 2001 2001 01 Jan- 31 Jan 744 0.503 01 Feb - 28 Feb 672 0.402 01 Mar- 31 Mar 744 0.200 01 Apr - 30 Apr 720 0.270 01 May- 31 May 744 0.216 01 Jun - 30 Jun 720 0.090 Totals 8,760 hours0.0088 days <br />0.211 hours <br />0.00126 weeks <br />2.8918e-4 months <br /> 2.573 curies (2) Particulates with a half-life of greater than eight days:

Particulate filters from the Stack Particulate Monitoring Channel were analyzed upon removal. There was no particulate activity with tat2 >8 days indicated on any filter during this reporting period.

ii. Gases and Particulates Discharged During the Reporting Period:

(1) Gases:

Total activity of argon-41 release was 2.573 curies.

The yearly average concentration of argon-41 released from the PULSTAR reactor facility exhaust stack during this period was 7.8 x 10-9 iCi/cc. This is below the regulatory limit of 1 x 10-8 [ICi/cc given in 10 CFR 20 Appendix B. Dose calculations were performed using the "COMPLY" code for the fiscal year. "COMPLY" code results were less than the 10 mrem constraint level given in 10 CFR 20.

(2) Particulates:

See gaseous waste i.(2) above.

3. Solid Waste from Reactor2

" Total volume of solid waste - 18 ft3 (0.51 m 3 )

" Total activity of solid waste - 0.638 mCi

" Dates of shipments and disposal - All waste is transferred to the NCSU Environmental Health and Safety Center for temporary storage and disposal under the NCSU state license. Transfers were made on 01 Aug 00.

2 Solidwaste generated by the PULSTAR Reactor is transferredto the NCSURadiation Safety Divisionfor storage or disposal.