ML20358A081
| ML20358A081 | |
| Person / Time | |
|---|---|
| Site: | 07007031 |
| Issue date: | 12/22/2020 |
| From: | Frank Tran NRC/RGN-III/DNMS/MLB |
| To: | Peters W Niowave |
| References | |
| 621136 | |
| Download: ML20358A081 (2) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION REGION III 2443 WARRENVILLE RD. SUITE 210 LISLE, IL 60532-4352 December 22, 2020 William Peters, Ph.D.
Radiation Safety Officer Niowave, Inc.
1012 N. Walnut Street Lansing, MI 48906
Dear Dr. Peters:
We have reviewed your application dated May 18, 2020 and letter dated September 28, 2020.
In addition, Mr. Ryan Craffey, an NRC Materials Inspector, has visited your facility several times in person and virtual to observe the proposed facility and equipment and your proposed activities. The purpose of the licensing site visits was to verify and ensure: (1) the proposed facility and equipment will be in accordance with the application and will be adequate to protect health and minimize danger to life or property and (2) the applicant is qualified by training and experience to use the material for the purpose requested in such manner as to protect health and minimize danger to life or property.
Based on the review and discussions with you, we will need the following information.
- 1) Provide a diagram showing the locations of shielding, the negative-pressure hot cell, the Radiochemistry and Spectroscopy Laboratory, the proximity of radiation sources to unrestricted areas, areas containing flammable or hazardous materials in the restricted areas, and the ventilation systems from the intake(s) to the exhaust(s) (including the stack) with pertinent airflow rates and the pressure in the hot cell (based on a recommendation from the industry, the airflow of 125 +/- 25 feet per minute (fpm) through a breached (8-inch diameter) gloveport and a negative pressure from 0.3 to 0.5 inches water gauge (in.wg) relative to their surroundings should be provided to maintain confinement).
Diagrams should be drawn to a specified scale, or dimensions should be indicated. The same scale should be used for all sketches and drawings. The recommended scale is 1/4 inch = 1 foot. Sketches or drawings should also include a compass directional arrow to indicate North.
- 2) Describe the radiation shielding which will be provided for your negative pressure hot cell to maintain the radiation dose ALARA.
- 3) Describe the equipment (a bag port, a properly-filtered airlock, etc.) and processes which will be utilized to control contamination from escaping the negative-pressure hot cell when licensed material will be brought in and out of it.
- 4) Describe the filter which will be provided at the air inlet of the hot cell (based on a recommendation from the industry, the filter should be a HEPA type or with MERV rating
W. Peters of 17 to 20.)
- 5) Describe the equipment and process which the applicant will provide to mitigate a potential out leakage of contaminations from the negative-pressure hot cell in event of power outage.
- 6) A confirmation that the maximum special nuclear material (SNM) scrap in each container received by the applicant will be 10 grams or less.
- 7) Describe how the applicant assesses and mitigates a potential fire and explosion in the hot cell before implementing a change in the work processes (such as introducing different chemical to the process, etc.)
- 8) As discussed with you that extracting SNM from SNM scrap is not authorized under the license you are applying for, you stated that the applicant will not extract special nuclear material. Please provide a confirmation in writing.
- 9) In Item 6 of letter dated September 28, 2020, the applicant committed to meeting ASTM C1553-15. We think it may be ASTM C1533-15. Please provide a clarification.
To continue the review of your license application, we request that you submit your signed and dated written response to this letter by January 22, 2020. Please reference Mail Control Number 621136 in the cover letter to facilitate proper mail handling in our office. If you have any questions or require clarification on any of the information stated above, please do not hesitate to contact me at 630-829-9887 or frank.tran@nrc.gov.
In accordance with 10 CFR 2.390 of the NRCs "Rules of Practice," a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the NRC's Agencywide Documents Access and Management System (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html.
Sincerely, Digitally signed by Frank P. Tran Frank P. Tran Date: 2020.12.22 14:30:24
-06'00' Frank P.D. Tran Health Physicist Materials Licensing Branch Docket No. 070-07031 Control No. 621136