ML20207G793
| ML20207G793 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 08/15/1988 |
| From: | Alexion T Office of Nuclear Reactor Regulation |
| To: | Schnell D UNION ELECTRIC CO. |
| References | |
| NUDOCS 8808240236 | |
| Download: ML20207G793 (3) | |
Text
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August 15, 1988 Docket No.
50-483
,)ISTR"BUTION:
e mete 4 FUesT NRC & Local PDRs PDIII-3 r/f XPerkins GHolahan TAlexion PKreutzer 0GC-WF1 Mr. Donald F. Schnell EJordan BGrimes Vice President - Nuclear ACRS(10)
PDIII-3 Gray Files Union Electric Company JMinns 0 Lynch Post Office Box 149 St. Louis, Missouri 63166
Dear Mr. Schnell:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING WIDE RANGE GAS MONITOR CONCENTRATION DISPLAY The staff is continuing its review of your October 24, 1986 variance request concerning your wide range gas monitor concentration display. The staff requests additional infonnation identified in the enclosure to continue its review.
This request for information affects fewer than 10 respondents; therefore, OMB clearance is not required under Pub. L.96-511.
Sincerely, 4s Thomas W. Alexion Project Manager Project Directorate III-3 Division of Reactor Projects - III, IV, Y and Special Projects
Enclosure:
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Mr. D. F. Schnell Callaway Plant Union Electric Company Unit No. I cc:
Dr. J. O. Cermack Mr. Bart D. Withers CFA Inc.
President and Chief 4 Professional Dr., Suite 110 Executive Officer Gaithersburg, MD 20879 Wolf Creek Nuclear Operating Corporation Gerald Charnoff, Esq.
P. O. Box 411 Thomas A. Baxter, Esq.
Burlington, Kansas 66839 Shaw, Pittman, Potts & Trowbridge 2300 N Street, N. W.
Mr. Dan I. Bolef, President Washington, D. C.
20037 Kay Drey, Representative Board of Directors Coalition Mr. T. P. Sharkey for the Environment Supervising Engineer, St. Louis Region Site Licensing 6267 Delmar Boulevard Union Electric Company University City, Missouri 63130 Post Office Box 620 Fulton, Missouri 65251 U. S. Nuclear Regulatory Comission Resident Inspectors Office RRf1 Steedman, Missouri 65077 Mr. Alan C. Passwater, Manager Licensing and Fuels Union Electric Company Post Office Box 149 St. Louis, Missouri 63166 Manager - Electric Department Missouri Public Service Comission 301 W. High Post Office Box 360 Jefferson City, Missouri 65102 Regional Administrator U. S. NRC, Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. Ronald A. Kucera, Deputy Director Department of Natural Resources P. O. Box 176 Jefferson City, Missouri 65102 L
REQUEST FOR ADDITIONAL INFORMATION CALLAWAY NUCLEAR PLANT WIDE RANGE GAS MONITOR DOCKET NUMBER 50-483 1.'
Provide a block diagram of the General Atomic Wide Range Gas Monitor (WRGM).
2.
Demonstrate how the information from the WRGM RM-80 microprocessor and junction box uses the signal from the stack velocity system to maintain flow control and for calculating effluent release rate (microcuries per second). Sumarize how tnese curves are developed.
Please use recent data to demonstrate how the release rates are calculated from the stacks.
3.
Please verify:
that goble gas effluent monitors with an upper range capacity of up a.
to 10 uC1/cc(Xe-133)areinstalled, 5
b.
that the range extends from normal conditions (ALARA) to 10 uC1/cc (Xe-133),
c.
that the system provides continuous c eability during and following an accident, d.
that a design description of the system identifying the specifications in accordance with Table II.F.1-1 is available, e.
that procedures and calculational methods are established, f.
that instrument ranges will overlap to vover the entire range of effluents, from normal through accident conditions.
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