ML16299A387
| ML16299A387 | |
| Person / Time | |
|---|---|
| Site: | Humboldt Bay |
| Issue date: | 10/26/2016 |
| From: | John Hickman Reactor Decommissioning Branch |
| To: | Sharp L Pacific Gas & Electric Co |
| HICKMAN J, 415-3017, T8-F05 | |
| References | |
| Download: ML16299A387 (3) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 26, 2016 Mr. Loren D. Sharp Senior Director Humboldt Bay Nuclear Humboldt Bay Power Plant 1000 King Salmon Avenue Eureka, CA 95503
SUBJECT:
HUMBOLDT BAY POWER PLANT UNIT 3 - MARSSIM RECLASSIFICATION OF INTAKE STRUCTURE
Dear Mr. Sharp:
In your letter dated September 28, 2016, you informed us of your intent to revise the MARSSIM classification of the intake structure from Class 1 to Class 3. Your reclassification was based on characterization surveys performed after the Humboldt Bay Power Plant Historical Site Assessment was developed. The letter further indicated that PG&E performed these surveys on the area of the intake structure where the most potential for contamination exists (i.e., the Unit 1 intake chambers with proximity to spill area) as the configuration of the intake structure was such that the entire structure was a confined space and could not be safely accessed.
We have reviewed your proposed reclassification and have no objections. We would like to note that this does not constitute approval of the survey unit for license termination. To support such a review in the future, the Final Status Survey Report should clearly describe the extent of and results of surveys performed, the as-left configuration of the structure after any demolition occurs, the reasoning for your survey approach, and a justification for the non-accessibility of the structure. In addition, since a portion of the structure is proposed to remain, the accessibility of the remaining structure should be assessed after any demolition to determine whether the same safety concerns exist at that point or not. If not, it may be prudent to survey additional accessible areas at that time.
Sincerely,
/RA/
John B. Hickman, Project Manager Reactor Decommissioning Branch Division of Decommissioning, Uranium Recovery and Waste Programs Office of Nuclear Material Safety and Safeguards Docket No. 50-133 cc: Humboldt Bay Service List
October 26, 2016 Mr. Loren D. Sharp Senior Director Humboldt Bay Nuclear Humboldt Bay Power Plant 1000 King Salmon Avenue Eureka, CA 95503
SUBJECT:
HUMBOLDT BAY POWER PLANT UNIT 3 - MARSSIM RECLASSIFICATION OF INTAKE STRUCTURE
Dear Mr. Sharp:
In your letter dated September 28, 2016, you informed us of your intent to revise the MARSSIM classification of the intake structure from Class 1 to Class 3. Your reclassification was based on characterization surveys performed after the Humboldt Bay Power Plant Historical Site Assessment was developed. The letter further indicated that PG&E performed these surveys on the area of the intake structure where the most potential for contamination exists (i.e., the Unit 1 intake chambers with proximity to spill area) as the configuration of the intake structure was such that the entire structure was a confined space and could not be safely accessed.
We have reviewed your proposed reclassification and have no objections. We would like to note that this does not constitute approval of the survey unit for license termination. To support such a review in the future, the Final Status Survey Report should clearly describe the extent of and results of surveys performed, the as-left configuration of the structure after any demolition occurs, the reasoning for your survey approach, and a justification for the non-accessibility of the structure. In addition, since a portion of the structure is proposed to remain, the accessibility of the remaining structure should be assessed after any demolition to determine whether the same safety concerns exist at that point or not. If not, it may be prudent to survey additional accessible areas at that time.
Sincerely,
/RA/
John B. Hickman, Project Manager Reactor Decommissioning Branch Division of Decommissioning, Uranium Recovery and Waste Programs Office of Nuclear Material Safety and Safeguards Docket No. 50-133 cc: Humboldt Bay Service List DISTRIBUTION:
DCD r/f OGC ACRS/ACNW RKeller, RIV ML16299A387 OFFICE DUWP:PM DUWP:LA DUWP:HP DUWP:BC DUWP:PM NAME JHickman CHolston JClements BWatson JHickman DATE 10 / 25 /2016 10 / 26 /2016 10 / 26 /2016 10 /26/2016 10 /26/2016 OFFICIAL RECORD COPY
Humboldt Bay Power Plant, Unit 3 Service List cc:
Mr. Edward D. Halpin Senior Vice President and Chief Nuclear Officer Pacific Gas and Electric Company P.O. Box 56 Mail Code 104/6 Avila Beach, CA 93424 Loren Sharp Director and Plant Manager Humboldt Bay Nuclear Pacific Gas & Electric Company 1000 King Salmon Avenue Eureka, CA 95503 Jennifer K. Post Law Department Pacific Gas and Electric Company 77 Beale Street, B30A San Francisco, CA Hossein Hamzehee Regulatory Services Manager Diablo Canyon and Humboldt Bay Power Plant Pacific Gas and Electric Company P.O. Box 56 Avila Beach, CA 93424 Chairman, Humboldt County Board of Supervisors County Courthouse 825 Fifth Street Eureka, CA 95501 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 California Public Utilities Commission 505 Van Ness, Room 4102 San Francisco, CA 94102 Redwood Alliance P.O. Box 293 Arcata, CA 95521 Dr. Rich Ferguson, Energy Chair Sierra Club California 1100 11th Street, Suite 311 Sacramento, CA 94814 Mr. Gonzalo Perez, Radiation Program Director Radiologic Health Branch Dept. of Health Services, MS-7610 P.O. Box 997414 Sacramento, CA 95899-7414 Stephen Hsu, M.S., Senior Health Physicist Radiological Assessment Unit Radioactive Material Licensing Section Radiologic Health Branch Dept. of Health Services, MS-7610 P.O. Box 997414 Sacramento, CA 95899-7414 Commissioner California Energy Commission 1516 Ninth Street Sacramento, CA 95814 Deputy Attorney General Office of the Attorney General for the State of California 600 W. Broadway, Suite 1800 San Diego, CA 92101