ML19327B322
| ML19327B322 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 10/19/1989 |
| From: | Bidinger G NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Rode J ABB COMBUSTION ENGINEERING NUCLEAR FUEL (FORMERLY |
| References | |
| NUDOCS 8910300178 | |
| Download: ML19327B322 (3) | |
Text
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007 1 0 1989 Docket No.
70 35
. License No. SNM-33 Combustion Engineering. Inc.
ATTN: Mr. J. A. Rode, Plant Manager Hematite fuel Manufacturing P.O. Box 107
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Hematite, Missouri 63047 Gentlenen:
We have reviewed your license amendment application dated May 1,1989, and supplement dated August 18, 1989. The enclosure to this letter identifies i
several issues which require additional information. Please submit your res>onse to these comments in the fonn of revised pages to the application witiin 20 days of the date of this letter.
We will continue our review upon receipt of the information, if there are any questions regarding this matter, please contact Dave McCaughey of my staff at (301)492-0669.
Sincerely, I
OrW Siged Br.
l George H. Bidinger, Section Leader Uranium fuel Section Fuvi Cycle Safety Branch Division of Industrial and Medical Nuclear Safety, NMSS
Enclosure:
As stated cc w/encis:
Mr. A. E. Scherer, Director Mr. C. B. Brinkman, Manager Nuclear Licensing Washington Nuclear Operations Mr. C. R. Waterman, Vice President Mr. H. E. Eskridge, Manager and General Manager Licensing Safety and Accountability Nuclear Fuel Manufacturing Hematite Fuel Manufacturing Distribution w/ encl.
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i REQUEST FOR ADDITIONAL INFORMATION APPLICATION DATED MAY 1,1989 AND SUPPLEMENT DATED AUGUST 18, 1989 COMBUSTION ENGINEERING, INC.
70-36 1
- 1. in Section 1.7, Part 1, the application includes Building 253 as an authorized place of use. However, the NRC review and confirmation of CE's soil survey results for Building 250/253 have not been completed. Therefore, Building 253 should be removed from the application, and Building 250 should be rein-stituted as an authorized place of use.
- 2. In Chapter 8, Part 11, describe how dewpoint measurements provide information
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about the moisture content in the VO powder coming out of the screw cooler.
Also, describe the relationship of d$wpoints of 15'c and O'C to weight percent water.
- 3. In Section 8.3.4.1(d), Part II, the safety evaluation for filling the bulk j
storage hoppers does not provide for uranium in storage silos or blenders.
However, there are no controls in slace to assure that these silos and blenders will be empty.
Provide taese controls in Part I or reanalyze the system with full silos and blenders.
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- 4. Validation of the calculation methods for k calculations must be described I
and demonstrated. Reference to validation $fforts by other organizations does not assure (a) that the codes perform the same on CE computers, (b) that the cross-section libraries are the same, (c) that the same calculation methods are used, etc. The validation effort should be done in accordance with i
ANSI /ANS-8.1-1983.
- 5. To demonstrate implementation of the double contingency principle criteria, the following must be provided:
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- a. In Section 4.2.3, Part I, provide a commitment for calibration at
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specified maximum intervals of the instruments for moisture content verification. A second connitment should provide for dual, independent verifications of moisture content prior to transfer of material into non-favorable geometry containers.
- b. A commitment should be established in Chapter 4, Part I, of the application requiring that all moderation controlled vessels (e.g., bulk storage hoppers, conveyor storage cans, etc.) will be sealed to ensure maintaining l
Provisions to prevent introduction of moderation material when l
dryness.
the vessels are open must be provided in Part I and described in Part II.
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- c. Section 8.2.1, Part II, establishes that scrap recycle materials, which are to be charged to the Building 255 mill from 5-gallon pails, may contain up to 5 weight percent moisture. However in Section 8.3.1 i
Part II, the moisture control criteria on pails of recycle material,to be charged to the recycle hopper is 1 weight percent moisture. The use i
of the same pails with different sets of moisture control criteria is i
not a recommended nuclear criticality safety practice.
Use of uniform criteria should be implemented. Please revise accordingly.
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- d. Section 8.3.3, Part II, describes the use of moisture detectors in the screw cooler hopper and the plant air supply. However, the application
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should describe actions to be taken in the event of ecisture detector failure and actions to be taken in the event of an alarm of the moisture detector located at the exit of the dryer. Parts I and II should be revised accordingly.
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- e. Section 8.3.3.2 Part II, does not describe the moderator barrier controls while Ioading the recycle hopper into the transfer hood.
Identify the barrier controls during recycle hopper loading and provide license commitments in Part I.
- f. In Section 0.3.3.1 Part II, describe how representative sampling for mooeratorcontentInthereceivervesselwillbeperformedandassured,
- g. The analysis in Section 8.3.4.3 Part II limits the storage of buckets i
of 00 onthesecondandthirdfloorsof, Building 254to1w/owater, 2
I w/o starch, and 1 w/u zine sterate.
License commitments must be established in Chapter 4, Part I, to control the use and storage of hydrogenous materials on the second and third levels.
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