ML20196L399
| ML20196L399 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 07/01/1988 |
| From: | Callan L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Andrews R OMAHA PUBLIC POWER DISTRICT |
| References | |
| NUDOCS 8807070434 | |
| Download: ML20196L399 (2) | |
See also: IR 05000285/1986020
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.In Reply Refer To:
-Docket:
50-285/86-20
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Omaha Public Power District
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ATTN:
R. L. Andrews, Division Manager-
Nuclear Production
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1623 Harney Street
Omaha, Nebraska 68102
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Gentlemen ~:
Thank you for your letter of May 26, 1988, providing additional
information concerning our letter and NRC Inspection Report 50-285/86-20 dated
December 22, 1986.' We have reviewed your revised schedule of completion for
deficiencies 285/8620-13 and 285/8620-15 and find it acceptable. We will
review the implementation of your corrective actions during a future inspection
to determine that full compliance has been achieved and will be maintained.
Sincerely,
Crigimi SigmJ Dy:
L. J. CALLAN
L. J. Callan, Director
Reactor Projects Division
cc:
Fort Calhoun Station
ATTN:
W. G. Gates, Manager
P.O. Box 399
Fort Calhoun, Nebraska 68023
Harry H. Voigt, Esq.
LeBoeuf, Lamb, Leiby & MacRae
1333 New Hampshire Avenue, NW
Washington, D. C.
20036
Program Manager
FEMA Region 7
911 Walnut Street, Room 200
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Director
Nebraska Civil . Defense Agency
1300 Military Road
Lincoln, Nebraska 68508
Kansas Radiation Control Program Director
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Nebraska Radiation Control Program Director
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R. D.-Martin, RA
Resident Inspector
Lisa Shea, RM/ALF
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Section Chief, DRP/B
MIS System
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Section Chief
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R. L. Bangart
R. E. Hall
Project Engineer, DRP/B
T. Bournia, NRR Project Manager
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Omaha Public Power District
1623 Harney Omaha. Nebraska 68102 2247
402 536 4000
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May 26, 1988
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LIC-88-066
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U. S. Nuclear Regulatory Commission
Attn: Document Control Desk
Washington, DC 20555
References:
1.
Docket No. 50-285
2.
Letter NRC (J. E. Gagliardo) to OPPD (R. L. Andrews) dated
December 22, 1986. (Inspection Report 50-285/86-20)
3.
Letter from 0 PPD (R. L. Andrews) to NRC (J. E. Gagliardo)
dated January 28, 1987 (LIC-87-059)
4.
Letter from 0 PPD (R. L. Andrews) to NRC (Document Control
Desk) dated September 10, 1987 (LIC-87-609)
Gentlemen:
SUBJECT:
Inspection Report Items 8620-13 & 8620-15 - Revised Schedule to
Correct Deficiencies
Omaha Public Power District (OPPD) forwarded a schedule in Reference 3 to
correct deficiencies in the area of Emergency Preparedness.
Items 8620-13 &
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8620-15 concerned deficiencies relative to the Emergency Assessment of Gaseous
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and Liquid Effluents (EAGLE) computer program. A schedule to manually perform
dose assessments was addressed in Reference 4.
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OPPD proposed to complete the necessary changes to the EAGLE computer program
to correct the deficiencies by June 1, 1988.
After investigation of the
required changes and resources available, OPPD has determinea shat the June 1,
1988 date cannot be met.
The plume-follow model contained within the EAGLE computer program will require
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at least five modifications (e.g., eminent release, daughter-in-growth) with an
estimate of 30-35 weeks necessary to complete these changes.
Prior to
implementation, the plume-follow model must be verified and validated (V&V)
which will require an additional 25 weeks to accomplish, with a projected
completion date of June 1, 1989.
Therefore, OPPD wishes to inform you that the
revised completion date to correct deficiencies is June 1, 1989.
This delay
was discussed in a telephone conversation on January 15, 1988, between Mr.
James Fisicaro of my staff and Mr. Nemen Terc of Region IV.
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LIC-88 066
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Page 2
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During the interim, a Straight-Line Gaussian calculation method will be used.
Offsite monitor team data for discrete locations will be compared to pro-
jections for Protective Action Recommendations (PAR) upgrade if necessary. The
offsite monitor team data is not used programatically for PAR downgrade when a
release is in progress.
This is a proven method for calculating dose
assessment.
There is no safety significance associated with the delay of implementing the
-plume follow method.
The straight line method has been verified and validated
and is more conservative than'the plume follow method.
The plume follow method
is designed to provide more accurate information about discrete locations for
the longer term of recovery rather than the initial response.
The straight
line provides dose projection to 10 miles in less than 15 minutes ver:us the 30
minutes to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> required for the plume follow.
This allows for a more
timely' notification of the public.
If you have any questions pertaining to this matter, please contact us.
Sincerely,
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R. L.
ndrews
Division Manager
Nuclear Production
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LeBoeuf, Lamb, Leiby & MacRae
1333 New Hampshire Ave., N.W.
Washington, DC 20036
R. D. Martin, NRC Regional Administrator
A. Bournia, NRC Project Manager
P. H. Harrell, NRC Senior Resident inspector
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