ML20126H561
| ML20126H561 | |
| Person / Time | |
|---|---|
| Issue date: | 12/23/1992 |
| From: | Thoma J NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Cade M U.S. ECOLOGY, INC. (FORMERLY NUCLEAR ENGINEERING |
| References | |
| REF-WM-102 NUDOCS 9301050253 | |
| Download: ML20126H561 (2) | |
Text
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v *3D atow UMITED STAT ES
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Docket No. WM-102 Mr. Mark Cade U.S. Ecology, Incorporated 9200 Shelbyville Road, Suite 300 P.O. Box 7246 Louisville, KY 40257-0246 ,
Dear Mr. Cade:
SUBJECT:
FINAL APPROVAL OF U.S. ECOLOGY'S TOPICAL REPORT, " HIGH STRENGTH ASPHALT SOLIDIFICATION PROCESS FOR LOW-LEVEL RADI0 ACTIVE WASTES,"
AS APPLIED TO THE BORIC ACID WASTE STREAM, (WM-102)
The Nuclear Regulatory Commission has completed its review of the test report submitted by U.S. Ecology (USE) by a letter dated July 17, 1992. The data were obtained from tests conducted in response to the request by NRC for USE to complete confirmatory testing in three areas. These areas were defined in Section 5.2.1 of the Interim Technical Evaluation Report (ITER) dated July 1991, and issued by a letter dated August 2,1991. The applicability of the ITER and Supplement No. 1, that was issued on January 24, 1992, was extended from July 31, 1992 to Decemoer 31, 1992, by an NRC letter dated July 21, 1992.
The test data confirm that the full-scale production facility can produce processed waste from the boric acid waste stream that meets the requirements of 10 CFR Part 61 and the guidance of the Branch Technical Position on Waste Form, 1/91, Rev. 1. Additionally, the tests have shown that the full-scale production facility and the full-size waste form yield a relatively-homogeneous product. The test data also provided additional information on unconfined compressive strengths at the 77'F temperature that demonstrate acceptable performance.
Based on this additional information, NRC has concluded that there is ,
reasonable assurance that the resulting waste form product from boric acid concentrates will meet the requirements of 10 CFR Part 61.
The final TER will be issued during the month of January 1993 and in the period from December 31, 1992 to January 31, 1993, this letter authorizes the continued use of ITER and Supplement No. I for reference in processing boric acid concentrates.
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9 Mark Cade We are sending notification to State Programs of NRC so that the current disposal sites will be made aware of the current status of the USE High-Strength Asphalt Solidification Process. If there are any questions, please contact Robert E. Sher: maker, Project Manager, on (301) 504-2596.
Sincerely, oftfGhm SafM DY John 0. Thoma, Section Leader Technical and Special Issues Section Division of Low-Level Waste Management and Decommissioning Office of Nuclear Material Safety and Safeguards DJSTRIBUTION: Central l File. NMSS r/f RBangart WBrach JAustin JSurmeier SBahadur JKennedy LLWB r/f
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