ML061440549
| ML061440549 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 05/19/2006 |
| From: | Crouch W Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML061440549 (6) | |
Text
Tennessee Valley Authority, Post Office Box 2000, Decatur, Aabama 35609-2000 May 19, 2006 10 CFR 50.36a (a) (2) 10 CFR 50, Appendix I,Section IV.B.1 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop:
- OWFN, P1-35 Washington, D.C. 20555-0001 Gentlemen:
In the Matter of
)
Docket Nos.
50-259 Tennessee Valley Authority
)
50-260 50-296 BROWNS FERRY NUCLEAR PLANT (BFN)
UNITS 1, 2,
AND 3 -
UPDATE TO THE 2004 ANNUAL RADIOACTIVE EFFLUENT RELEASE (ARER) REPORT This letter provides an updated 2004 annual radioactive effluent release (ARER) report.
The original ARER was submitted to the NRC on April 28, 2005.
This updated 2004 ARER covers the period from January 1, 2004, through December 31, 2004, and supersedes the previous ARER.
During a follow-up review of the 2004 ARER, it was identified that 17 values on 6 tables were erroneous. provides a summary of the changes.
The previous values were a result of incorrect data input to the computer program.
A problem evaluation report was generated to address this incident in our corrective action program. provides a complete updated 2004 ARER.
A4oQ7
U.S. Nuclear Regulatory Commission Page 2 May 19, 2006 A review of the 2004 ARER evaluated the extent of condition.
The review did not identify any additional erroneous values.
If you have any questions concerning this updated ARER report, please contact me at (256) 729-2636.
Sincerely,
'Ujt'
- 16. I'J William D. Crouch Manager of Site Licensing and Industry Affairs cc (w/o Enclosures):
(Via NRC Electronic Distribution)
Mr. Malcolm T. Widmann, Branch Chief U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-3415 NRC Senior Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, AL 35611-6970 Margaret Chernoff, Senior Project Manager U.S. Nuclear Regulatory Commission (MS 08G9)
One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Eva A. Brown, Project Manager U.S. Nuclear Regulatory Commission (MS 08G9)
One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Mr. Ronald Sanacor (w/Enclosures)
American Nuclear Insurers 95 Glastonbury Blvd.
Glastonbury, Connecticut 06033
ENCLOSURE 1
UPDATE
SUMMARY
(1) In Table 4, on page El-Il, the Dose value for external Gamma Air was updated to 4.6E-11 mrad from 4.5E-11 mrad.
(2)
In Table 4, on page El-Il, the Dose value for Organ Doses to a Child/Thyroid was documented as 7.4E-03 mrem
- when, in fact, the updated calculation of the data for that value shows that it should have been 7.6E-03 mrem.
(3)
In Table 4, on page El-lI, the Population doses for Maximum Organ Dose was updated to 1.8E-02 man-rem (Liver) from 1.7E-02 man-rem (Liver).
(4)
In Table 9, on page El-16, the Thyroid Dose (mrem) fourth-quarter value for thyroid dose (airborne) should have been 7.6E-03 mrem instead of 7.4E-03 mrem.
(5)
By inclusion of the erroneous Thyroid Dose (mrem) data, the total dose for the fourth quarter was also affected.
The previously recorded value of 9.OE-03 mrem should have been 9.2E-03 mrem.
(6)
Finally, in table 9, it should be noted that the cumulative total dose for the thyroid changed from 3.6E-02 mrem to 3.7E-02 mrem.
(7)
On page E3-8, in item B.1 (Iodine-131),
the fourth-quarter value for was submitted as 1.09E-03 Curies; however, it should have been 1.14E-03 Curies.
Consequently, this also affected item B.2 described below (8).
(8)
On page E3-8, in item B.1 (Iodines),
the fourth-quarter value for Average Release Rate for Period was submitted as 1.38E-04 uCi/sec;
- however, it should have been 1.44E-04 uCi/sec.
(9)
On page E3-8, in item D.1 (Tritium), the fourth-quarter value for total tritium release was submitted as 8.61E+00 Curies; however, it should have been 8.81E+00 Curies.
Consequently, this also affected item D.2 described below (10).
(10) On page E3-8, in item D.2 (Tritium),
the fourth-quarter value for Average Release Rate for Period was submitted as 1.08E+00 uCi/sec;
- however, it should have been 1.lIE+00 uCi/sec.
(11) On page E3-13, in item 2 (Iodines),
the fourth-quarter value for 1-131 was submitted as 7.61E-04 Curies; however, it should have been 8.09E-04 Curies.
Consequently, this also affected item Total for Period described below (13).
(12)
On page E3-13, in item 2 (Iodines),
the fourth-quarter value for 1-133 was submitted as 2.49E-03 Curies; however, it should have been 2.60E-03 Curies.
Consequently, this also affected item Total for Period described below (13).
(13)
On page E3-13, in item 2 (Iodines), the Total for Period value was submitted 3.25E-03 Curies;
- however, it should have been 3.41E-03 Curies.
(14)
On page E3-14, in item 3 (Particulates-Others),
the fourth-quarter value for Y-91m was submitted 1.07E-03 Curies; however, it should have been 1.21E-03 Curies.
Consequently, this also affected item Total for Period described below (15).
(15)
On page E3-15, in item 3 (Particulates-Others),
the Total for Period value was submitted as 2.05E-03 Curies; however, it should have been 2.19E-03 Curies.
(16)
On page E3-15, in item 4(Tritium),
the third-quarter value was submitted as 7.98E+00 Curies;
- however, it should have been 7.99E+00 Curies.
(17)
On page E3-15, in item 4 (Tritium), the fourth-quarter value was submitted as 6.74E+00 Curies;
- however, it should have been 6.93E+00 Curies.
ENCLOSURE 2