ML020220265
| ML020220265 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 01/28/2002 |
| From: | Wang A NRC/NRR/DLPM/LPD4 |
| To: | Ridenoure R Omaha Public Power District |
| Wang A | |
| References | |
| TAC MB1221 | |
| Download: ML020220265 (5) | |
Text
January 28, 2002 Mr. R. T. Ridenoure Division Manager - Nuclear Operations Omaha Public Power District Fort Calhoun Station FC-2-4 Adm.
Post Office Box 550 Fort Calhoun, NE 68023-0550
SUBJECT:
FORT CALHOUN STATION, UNIT NO. 1 - CORRECTIONS TO SAFETY EVALUATION SUPPORTING AMENDMENT NO. 201 (TAC NO. MB1221)
Dear Mr. Ridenoure:
The Commission issued Amendment No. 201 to Facility Operating License No. DPR-40 for the Fort Calhoun Station, Unit No. 1 on December 5, 2001. The amendment consisted of changes to the Technical Specifications in response to your application dated February 7, 2001.
Based on conversations with your staff, typographical errors were noted on page 4 of Table 1, "DBA Analysis Assumptions" and page 1 of Table 2, "Analysis Results" of the safety evaluation.
Marginal lines indicate where the changes were made. Enclosed are the corrected pages. If you have any questions, please call me at (301) 415-1445.
Sincerely,
/RA/
Alan B. Wang, Project Manager, Section 2 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-285
Enclosures:
- 1. Page 4 of Table 1
- 2. Page 1 of Table 2 cc w/encls: See next page
January 28, 2002 Mr. R. T. Ridenoure Division Manager - Nuclear Operations Omaha Public Power District Fort Calhoun Station FC-2-4 Adm.
Post Office Box 550 Fort Calhoun, NE 68023-0550
SUBJECT:
FORT CALHOUN STATION, UNIT NO. 1 - CORRECTIONS TO SAFETY EVALUATION SUPPORTING AMENDMENT NO. 201 (TAC NO. MB1221)
Dear Mr. Ridenoure:
The Commission issued Amendment No. 201 to Facility Operating License No. DPR-40 for the Fort Calhoun Station, Unit No. 1 on December 5, 2001. The amendment consisted of changes to the Technical Specifications in response to your application dated February 7, 2001.
Based on conversations with your staff, typographical errors were noted on page 4 of Table 1, "DBA Analysis Assumptions" and page 1 of Table 2, "Analysis Results" of the safety evaluation.
Marginal lines indicate where the changes were made. Enclosed are the corrected pages. If you have any questions, please call me at (301) 415-1445.
Sincerely,
/RA/
Alan B. Wang, Project Manager, Section 2 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-285 DISTRIBUTION:
PUBLIC GHill (2)
Enclosures:
- 1. Page 4 of Table 1 PDIV-2 Reading HWalker
- 2. Page 1 of Table 2 RidsNrrPMAWang KParczewski RidsNrrLAEPeyton ADrozd cc w/encls: See next page RidsOgcRp SLaVie RidsAcrsAcnwMailCenter RidsNrrDripRtsb (WBeckner)
RidsNrrDlpmLpdiv (SRichards)
RidsRgn4MailCenter (DBujol/LHurley/CMarschall)
ACCESSION NO. ML020220265 OFFICE PDIV-2/PM PDIV-2/LA PDIV-2/SC NAME AWang:as EPeyton LRaghavan for SDembek DATE 1/25/02 1/25/02 1/28/02 DOCUMENT NAME: C:\\Program Files\\Adobe\\Acrobat 4.0\\PDF Output\\mb1221rev.wpd OFFICIAL RECORD COPY
Ft. Calhoun Station, Unit 1 cc:
Winston & Strawn ATTN: James R. Curtiss, Esq.
1400 L Street, N.W.
Washington, DC 20005-3502 Mr. Jack Jensen, Chairman Washington County Board of Supervisors Blair, NE 68008 Mr. Wayne Walker, Resident Inspector U.S. Nuclear Regulatory Commission Post Office Box 309 Fort Calhoun, NE 68023 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76011 Ms. Julia Schmitt, Section Administrator Nebraska Health and Human Services Systems Division of Public Health Assurance Consumer Services Section 301 Cententiall Mall, South P. O. Box 95007 Lincoln, Nebraska 68509-5007 Mr. Richard P. Clemens Manager - Fort Calhoun Station Omaha Public Power District Fort Calhoun Station FC-1-1 Plant Post Office Box 550 Fort Calhoun, NE 68023-0550 Mr. Mark T. Frans Manager - Nuclear Licensing Omaha Public Power District Fort Calhoun Station FC-2-4 Adm.
Post Office Box 550 Fort Calhoun, NE 68023-0550 Enclosure 1 Iodine species fractions Elemental 0.9985 Organic 0.0015 Particulates none Water depth, ft Case 1 23 l
Iodine pool scrubbing factor, effective Case 1 200 l
Release rate from fuel puff Release duration to environment, hours 2
Control room HVAC switchover, sec 0
Containment surface /Q used for containment FHA Auxiliary building vent stack /Q used for fuel pool area FHA Assumptions for Heavy Load Drop Analysis Number of fuel assemblies in core 133 Number of damaged assemblies 133 Radial peaking factor 1.0 Decay period, hours 72 Fuel rod gap fractions Iodines 0.05 Noble gases 0.05 Alkali metals 0.05 Iodine species fractions Elemental 0.9985 Organic 0.0015 Particulates none Containment volume, ft3 1.05E+6 Containment mixing, percent 50 Water depth, ft Case 1 11.15 Case 2 23 TABLE 2 ANALYSIS RESULTS EAB LPZ Control Room l
rem, TEDE rem, TEDE rem, TEDE Loss of coolant accident (25) 2.5 0.5 4.5 Fuel handling accident (6.3)
Pool area 1.5 0.5 0.5 l
Containment 1.5 0.5 0.5 l
Heavy drop in containment (6.3) 23 feet water over 3.5 0.5 1.5 11 feet water over 5.0 0.5 2.0 Seized rotor accident (2.5) 0.5 0.5 4.7 Control rod ejection accident (6.3) 2.0 0.5 3.0 Main steam line break Pre-incident spike (25) 0.5 0.5 2.5 Co-incident spike (2.5) 1.5 0.5 2.5 Steam generator tube rupture Pre-incident spike (25) 1.5 0.5 1.5 Co-incident spike (2.5 1.5 0.5 1.5 Waste gas decay tank failure (0.5) 0.14 0.01 0.04 Liquid waste tank failure (0.5) 0.08 0.01 0.32
- With exception of WGDT failure/LWT failure, doses were rounded up to nearest 0.5 rem
( ) = Dose acceptance criterion for EAB and LPZ Control room acceptance criterion is <5 rem TEDE