ML20035H093
| ML20035H093 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 04/27/1993 |
| From: | Rood H Office of Nuclear Reactor Regulation |
| To: | Horn G NEBRASKA PUBLIC POWER DISTRICT |
| References | |
| GL-92-04, GL-92-4, TAC-M84275, NUDOCS 9305030115 | |
| Download: ML20035H093 (5) | |
Text
.-
~
UNITED STATES -
~9,,
NUCLEAR REGULATORY COMMISSION l
n j
. [
,yj WASHINGTON. D. C. 20555 l
'k April 27, 1993 i
Docket No. 50-298 i
i Mr. Guy R. Horn Nuclear Power Group Manager i
Nebraska Public Power District i
Post Office Box 499 j
Columbus, Nebraska 68602-0499
Dear Mr. Horn:
SUBJECT:
ADDITIONAL EVALUATION OF RESPONSE TO GENERIC LETTER 92-04,
" RESOLUTION OF THE ISSUES RELATED TO REACTOR VESSEL WATER LEVEL INSTRUMENTATION IN BOILING WATER REACTORS,"'(TAC NO. M84275)
Generic Letter (GL) 92-04 was issued by letter dated August 19, 1992, to all operating boiling water reactor (BWR) licensees. GL 92-04 requested licensees to promptly assess the impact on their facilities of potentially erroneous level indication due to non-condensible gases, and to implement compensatory
.i measures and long-term corrective actions as necessary. By letter dated j
September 28, 1992, the Nebraska Public Power District- (NPPD, or the District) responded to GL 92-04.
By letter dated February 19, 1993, the NRC staff acknowledged receipt of your response to GL 92-04 and found certain aspects of your response to be acceptable.
j However, item 3 of GL 92-04 requested that each licensee " provide its plans' and schedule for corrective actions, including any proposed hardware -
modifications necessary to ensure the level instrument system design is of high functional reliability for long term operation."
Your response endorsed the BWR Owners' Group (BWROG). plans originally provided j
in BWROG letter to the NRC on August 12, 1992, and reaffirmed your support of i
the BWROG plan by endorsing the BWROG 1etter of September 24, 1992.
You further stated that "If the BWROG Program indicates that modifications and/or t
procedure changes are necessary, the District will review such modificaticns
-and/or procedures _ changes against the current CNS [ Cooper Nuclear _ Station]'-
configuration, such as the Core Spray cold reference' leg injection, and ECCS i
~[ emergency core cooling system]' actuation off the reactor water hot (Yarway) ~
l reference legs.
If the District determines that additional modifications and/or procedure cha.nges are necessary after this review, a schedule and-description for suct modifications and/or procedure changes will be provided-j at that time."
i
?
?
h 85I
~a a
l fi f
9305030115 930427
~
l.bh PDR ADOCK 05000298-P PDR Ij
]J
r i
h Mr. Guy R. Horn We have reviewed the above endorsements and commitments related to the BWROG plans, and conclude that they do not respond acceptably to the GL 92-04 Requested Action 3, which requested your plans and schedule for corrective actions. Accordingly, you are requested to provide, by July 30, 1993, your plans and schedule for corrective actions, including any proposed hardware modifications necessary to ensure the level instrument system design is of high functional reliability for long-term operation.
If you have any questions regarding this issue, please contact me.
The information requested by this letter is within the scope of the overall burden estimate in GL 92-04, which was an average of 200 person-hours for each addressee's response. This request is covered by Office of Management and Budget Clearance Number 3150-0011, which expires May 31, 1994.
Sincerely, ORIGINAL SIGNED BY:
Harry Rood, Senior Project Manager Project Directorate IV-1 Division of Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation 1
cc:
See next page Dock i
& wcal PDRs PD4-1 Reading P. Noonan H. Rood J. Pellet M. Virgilio J. Roe ACRS (10)(P315)
OGC (15B18)
J. Clifford R. Jones A. Cubbage A. B. Beach, RIV J. Gagliardo, RIV E. Collins, RIV R. Kopriva, RIV 0FC LA:PD4-ly.
PM:PD4-1 D(A):PD4-1n NAME PNoonanII HRood:pk b JPelletOY DATE
^//N/93 4/G93 ft1/93 COPY YES[fiO)
YES/NO YESkO) 0FFICIAL RECORD COPY Document Name:
00084275.LT2 290028
~
t
'(
Mr. Guy R. Horn We have reviewed the above endorsements and commitments related to the BWROG 1
plans, and conclude that they do not respond acceptably to the GL 92-04 i
Requested Action 3, which requested your plans and schedule for corrective j
actions. Accordingly, you are requested to provide, by July 30, 1993, your plans and schedule for corrective actions, including any proposed hardware modifications necessary to ensure the level instrument system design is of i
high functional reliability for long-term operation.
If you have any' questions regarding this issue, please contact me.
l I
The information requested by this letter is within the scope of the overall burden estimate in GL 92-04, which was an average of 200 person-hours for each i
addressee's response. This request is covered by Office of Management and i
Budget Clearance Number 3150-0011, which expires May 31, 1994.
-l Sincerely, ORIGINAL SIGNED BY:
Harry Rood, Senior Project Manager Project Directorate IV-1 Division of. Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation cc: See next page DISTRIBUTION:
i Docket File NRC & Local PDRs i
PD4-1 Reading P. Noonan H. Rood J. Pellet j
M. Virgilio l
J. Roe l
ACRS (10)(P315)
.l OGC (15818) i J. Clifford R. Jones A. Cubbage A. B. Beach, RIV J. Gagliardo, RIV E. Collins, RIV j
R. Kopriva, RIV 0FC LA:PD4-1,
PM:PD4-1 D(A):PD4-1a NAME PNoon'an HRood:pk b JPellet(k DATE-4/9 7/93 4 / 9 93-f2'l/93 COPY-YESh YES/N0 YES[Nh 0FFICIAL RECORD COPY Document Name: C0084275.L12 i
w
f Mr. Guy R. Horn We have reviewed the above endorsements and commitments related to the BWROG plans, and conclude that they do not respond acceptably to the GL 92-04 Requested Action 3, which requested your plans and schedule for corrective actions. Accordingly, you are requested to provide, by July 30, 1993, your plans and schedule for corrective actions, including any proposed hardware modifications necessary to ensure the level instrument system design is of high functional reliability for long-term operation.
If you have any questions regarding this issue, please contact me.
The information requested by this letter is within the scope of the overall burden estimate in GL 92-04, which was an average of 200 person-hours for each addressee's response. This request is covered by Office of Management and Budget Clearance Number 3150-0011, which expires May 31, 1994.
Sincerely, M
Harry Roo, Senior Project Manager Project Directorate IV-1 Division of Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation cc:
See next page
. ~
y Mr. Guy R. Horn Nuclear Power Group Manager Cooper Nuclear Station cc:
Mr. G. D. Watson, General Counsel Nebraska Public Power District P. O. Box 499 Columbus, Nebraska 68602-0499 Cooper Nuclear Station ATTN: Mr. John M. Meacham Site Manager P. O. Box 98 Brownville, Nebraska 68321 Randolph Wood, Director Nebraska Department of Environmental Control P. O. Box 98922 Lincoln, Nebraska 68509-8922 Mr. Richard Moody, Chairman Nemaha County Board of Commissioners Nemaha County Courthouse 1824 N Street Auburn, Nebraska 68305 Senior Resident Inspector U.S. Nuclear Regulatory Commission P. O. Box 218 Brownville, Nebraska 68321 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Mr. Harold Borchert, Director Division of Radiological Health Nebraska Department of Health 301 Centennial Mall, South P. O. Box 95007 Lincoln, Nebraska 68509-5007 4
f D
.