ML20147D746
| ML20147D746 | |
| Person / Time | |
|---|---|
| Issue date: | 10/03/1978 |
| From: | Baer R Office of Nuclear Reactor Regulation |
| To: | May J NEWPORT NEWS INDUSTRIAL CORP. (SUBS. OF NEWPORT NEWS |
| References | |
| EI-NNI-77-7, NUDOCS 7810160022 | |
| Download: ML20147D746 (2) | |
Text
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[p prog9e UNITED ST ATES
.,k NUCLEAR REGULATORY COMMISSION 3N
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p OCT 3 1978 4....
Mr. J. R. May Newport News Industrial Corporation 230 41st Street Newport News, Virginia 23607
Dear Mr. May:
SUBJECT:
ADDITIONAL REQUESTS ON "RADWASTE VOLUME REDUCTION SYSTEM,"
j TOPICAL REPORT EI/NNI-77-7 Enclosed are some additional requests for information on subject topical
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report. The first three questions in the Enclosure are the result of
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our review of your responses to our second round of questions on the subject topical report. The last two questions are based on the topical report itself.
We expect to conclude our review once we receive and evaluate satisfactory responses to these questions.
Please provide the information requested in the Enclosure by January 1, 1979.
If you will be unable to respond by that date, please provide us with your schedule so that we may adjust the schedule of our review e f fo rt.
Sincerely, 5
)
L R6bert L. Baer, Chief Light Water Reactors Branch No. 2 Division of Project Management
Enclosure:
Request for Additional Infonnation 98lc I60cg>
j OCT 3 1978 REQUEST FOR ADDITI0f1AL If1FORMATI0tl REPORT NUMBER:
E I /fJt11 7 T
REPORT TITLE: RWR-l M Radwaste Volume Reduction System
- June 24,1977)
ORIGINATING ORGANIZATION:
Energy Incorporated / Newport News Industrial Corporation 1.
In your discussion of the sizing of the RWR-1TM System, you conclude that the system has the capacity to handle 980 m3/ year.
- However, present staff estimates indicate that a maximum of 1350 m3/ year for a 3800 MWt boiling water reactor with deep-bed condensate demineralizers can be expected.
YourreportshouldingicatethattwoRWR-l TM systems would be required to process the 1350 m / year of waste.
~2. Since you indicate that the radioiodine adsorbent in the of fgas system is silver-inpregnated gel AC 6120 H1 to a depth of six inches, justify your DF of 625.
If a DF of 100 is used, what impact does this have on your dose analysis?
3.
Justify that your. system will operate with radioactive material of the. type and activity range encountered in nuclear power plants by providing experimental data which demonstrates your system's perfor-mance when processing simulated radioactive waste.
4.
Based on the specific design. features of the RWR-1 volume reduction system, and using conservative estimates of solid radwaste generation rates for both PWRs and BWRs, provide an estimate of the man-rem associated with.each of the following functions; operations, mainten-ance, and inservice inspection.
State the basis, models, and assump-tions used to arrive at these values.
5.
Indicate on Figure 2-5 (Pg. 44) the expected radiation zone designa-tions for each of the radwaste areas shown.
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