ML19122A340
| ML19122A340 | |
| Person / Time | |
|---|---|
| Issue date: | 05/20/2019 |
| From: | John Tappert Division of Decommissioning, Uranium Recovery and Waste Programs |
| To: | Weisman J US Ecology |
| Heath M | |
| References | |
| Download: ML19122A340 (2) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 20, 2019 Mr. Joseph J. Weismann Vice President of Government and Radiological Affairs US Ecology, Inc.
101 S. Capitol Blvd., #1000 Boise, ID 83702
SUBJECT:
SUPERSEDE LETTER TO US ECOLOGY, INCORPORATED - TECHNICAL EVALUATION REPORT OF REVISION THREE OF US ECOLOGYS SITE-SPECIFIC DOSE ASSESSMENT METHODOLOGY
Dear Mr. Weismann:
This letter supersedes the U.S. Nuclear Regulatory Commissions (NRC) September 20, 2018, letter to US Ecology, Inc. (Agencywide Documents Access and Management System (ADAMS)
Accession No. ML18164A073. This letter removes a footnote reference to improve clarity. The technical evaluation was not changed.
By letter dated August 4, 2017, US Ecology, Inc. (USEI) submitted to the NRC a request to review Version 3 of USEIs Site-Specific Dose Assessment Methodology (SSDA) ADAMS No. ML17230A221.
The attached Technical Evaluation Report (TER) documents the NRC staffs technical review of Version 3. Similar to a review of a 10 Code of Federal Regulations (CFR) 20.2002 request, the NRC staff performed a technical review of the methodology and associated supplement documents (ADAMS Accession No. ML18085A238 and ML18124A017) and evaluated the technical basis and assumptions incorporated into the calculations used by USEI. The NRC staff also used the methodology to evaluate previously evaluated USEI requests and compared the conclusions. Based on this review, the NRC staff considers the use of Version 3 of the SSDA to be an appropriate method for evaluating future proposed disposals at USEI. The Version 3 SSDA methodology can be used to satisfy the criteria in 10 CFR 20.2002(d);
however, individual 10 CFR 20.2002 requests by the NRC licensees wishing to ship licensed material to USEI must address the criteria in 10 CFR 20.2002(a)-(c) on a case-by-case basis.
Unless USEI becomes a NRC licensee, USEI must request, for each proposed domestic shipment exceeding an exempt quantities regulatory limit, an exemption from the applicable the NRC licensing requirements pursuant to 10 CFR 30.11, 10 CFR 40.14, or 10 CFR 70.17 in addition to the licensees 10 CFR 20.2002 request.
J. Weismann In response to your initial request, the SSDA, the technical basis document, and the NRCs detailed TER are considered proprietary in accordance with 10 CFR 2.390(a)(4) and as such will not be available for public review. However, a second, publicly-available TER was developed to demonstrate how this process will satisfy the NRCs mission of protecting public health and safety. The NRC staff also notes that site-specific parameter values unique to specific disposal requests should be included and documented in future submittals in order for the SSDA methodology to be evaluated on a case-by-case basis.
In accordance with 10 CFR 2.390 of the NRCs Agency Rules of Practice and Procedure, a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records component of NRCs ADAMS. ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html.
Copies of both TERs are enclosed. Please contact Mr. Maurice Heath if you have any questions concerning the above. He can be reached at (301) 415-3137 or via email at Maurice.Heath@nrc.gov.
Sincerely,
/RA/
John Tappert, Director Division of Decommissioning, Uranium Recovery and Waste Programs Office of Nuclear Material Safety and Safeguards
Enclosures:
TER (Proprietary)
TER (Public)