ML20127K652

Documents 670213 Telcon W/B Wilcox Re ACRS Subcommittee Meeting Scheduled for 670303 on Util Application.Lists Subjs Which ACRS Requires Presentation on

ML20127K652
Person / Time
Site:	Monticello
Issue date:	02/14/1967
From:	Muller D US ATOMIC ENERGY COMMISSION (AEC)
To:	US ATOMIC ENERGY COMMISSION (AEC)
References
NUDOCS 9211200462
Download: ML20127K652 (2)

Text

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k UNITED STATES GOVERNMENT Memorandum To  : The Files DATE:

/ February 14, 1967 THRU Roger S. Boyd, Chief TROM

( Research & Power Reactor afety Branch, DRL

\' . D. R. Muller 4 ,g g f Research & Power Reactor ty Branch, DEL SUBJECT : NSP MONTICELLO, DOCKET No. 50-263 Bob Wilcox called yesterday (February 13, 1907) and informed me that the ACRS would like to have a Sub-comittee F X ing on March 3,1967, on the subject application. He stated that tb y ) i not want further presenta-tions on the reactor vessol, but would a w , jresentations on the follow-ing:

1. Implications of fuel rod failure on normal operation, expected traneients, and accidents. This should be presented within the framework of the recent Comittee interest in TVA; i.e., might some types of mechanical failure interfere with subsequent core

. cooling?

2. For each city (Minneapolis and St. Paul), what is the present demand for water ont

a. the average day during a year,

b. the average day during a maximum month,

c. during a maximum week, .and .

d. the maximum 24-hour demand during any day?

What comparable demands are forecasted for 20 and 40 years hence?

What is the present volume of storage for treated water in each distribution system (i.e., elevated reservoirs, not pipe storage)?

. Please tabulate these reservoirs as to volume and elevations of maximum and minimum water levels, for both cities.

What additions are being planned?

l3. What would happen to the volume and concentration of liquid wastes at the time of an MCA? . For example, in the event of a pipe line break in the primary system and consequent operation of the LPCI and/or HPCI systems and possibly complete core flooding, what total quantities of water would be involved?

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The Files Feb ruary 14, 1967 Docket No. 50-263 Would all of this water be contained within tanks and sumps, or would there be overflow to the river or to the ground nearby?

Please provide a mass balance of the water pumped during an MCA and its disposition.

If any such water might escape to the river, what radio-nuclides might it contain and in what concentrations?

4. How long will it take a slug of pollutant at Monticello to pass the Minneapolis water intake at the absolute minimum flow averagint 400 cfs?

I called Mr. Al Ward of NSP on February 13 and passed on the f orecoing information and questions to him.

. Di st ribution :

E. G. Case D. P. Muller J. Shea B. Grimes K. Woodard DRL Readine E&PRSB Reading l ir