ML20196B481
| ML20196B481 | |
| Person / Time | |
|---|---|
| Issue date: | 12/21/1987 |
| From: | Tokar M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Voight R LN TECHNOLOGIES CORP. (FORMERLY LONDON NUCLEAR SVCS |
| References | |
| REF-WM-20 NUDOCS 8802110339 | |
| Download: ML20196B481 (3) | |
Text
4 leth M DEC 211987 1 WM Record file M Post _ O-Mr. Regan E. Voight, Vice President Dc i tib.
Operations m/
LN Technologies Incorporated Lpmu_
1501 Key Road, DistrNiicn:
Columbia, S. C. 29201 _ _ _ _ _ _ .
Dear Mr. Scott:
u % 3 u, rm) __
This letter concerns LN Technologies Incorporated's (LNTI's) Topical Report entitled "Topical Report on 10 CFR 61 Qualified Radioactive Waste Forms" which is currently under review at NRC. As you know, the NRC has over the past several months had communications, both verbal and in writing (Refs. I and 2) with LNTI regarding; (1) the status of our review of this report and (2) the results of research programs (itefs. 3-5) that indicate that cement-solidified waste forms may be susceptible to surface and bulk degradation as well as atypical cement strength behavior. These concerns were discussed with you, Steve Scott and Paul Denault of your staff in a meeting at NRC headquarters on October 14, 1987. At that meeting you indicated that you were working on the <
Technical Position test information needed to qualify your topical. In addition, you indicated that you where developing additional test data to explain why LNTI's bead-resin waste formulations do not exhibit prototypic cement strength behavior. We have received and are currently reviewing '
your test program, which you have prepared for the purpose of addressing our concerns regarding the long term stability of you waste forms.
However, after careful consideration of the information at hand, the NRC has decided to take the following actions regarding the review of LN Technologies topical report on cement solidification and the use of LN Technologies cement solidification agents:
- 1. Because the surface and bulk degradation phenomena and atypical cement strength behavior that have been observed in laboratory tests appear to be associated with excessive waste loading (Ref. 3), we request that LN Technologies submit, by May 30, 1987, sufficient data to support the maximum waste loading and corresponding maximum and minimum waste / binder ratios (as required by the appropriate mixing method employed). In the interim we suggest that the maximum waste loading for waste foms solidified using cement solidification media be limited to 18 weight percent. If we do not receive the requested information by May 30, 1988, we will assume that has no further interest in NRC approval of their i topical report or waste solidification media, and we will discontinue our review.
- 2. For all LNTI waste stream formulations that are not covered by the the current topical report but which constitute repeated commercial use by more than one user, a separate topical report should be submitted within 90 days of receipt of this letter. Any formulations not addressed in the new topical report should be discontinued.
8802110339 WASTE 071221 PDR PDR WM-20
o DEC 211987 Mr. Reagan E. Voight 2 In addition, those waste stream formulations that have not been certified and that are not in regular use by more than one customer should be discontinued unless submitted for NRC or Agreement State review and approval.
- 3. Finally, the specific data and information needed to qualify LNTI's cement formulations are quite detailed. We suggest that these needs and any questions you might have be discussed in a meeting in Silver Spring. This meeting can be arranged to fit both LNTI and NRC schedules by contacting me at (301) 427-4748 or Mr. LeRoy Person at (301) 427-4513. Thank you very much for your cooperation.
Sincerely, 0:riginc.1 S16ned by Michael Tokar, Section Leader Technical Branch Division of Low-Level Waste Management and Decommissioning, NMSS DISTRIBUTION:
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REFERENCES:
- 1. Letter, C. H. Petero n, NRC, to Steven Scott LNT! June 5, 1987.
- 2. Meeting between LN Technologies Incorporated and Technical Branch, Office of Nuclear Materials Safety and Safeguards, NRC, Septer.ber 1987.
- 3. Piciulo, Adams and Siskind, "Effect of Cure Conditions on the Stability of Cement Waste Forms After Immersion in Water", BNL-WM-3174-4, September 1987.
- 4. NUREG/CR-4181 Idaho National Engineering Laboratory Quarterly Progress Report, "Leachability of Radionuclides from Cement Solidified Waste Forms Produced at Operating Power Plants," January-March 1986.
- 5. SE-Phys-87-02-04 Quarterly Progress Report for the Characterization of Low-level Radioactive Decontamination Waste Study, October-December 1986, January-March 1987, April-January 1987.
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