ML20216C521
| ML20216C521 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 05/08/1998 |
| From: | Grant G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Wadley M NORTHERN STATES POWER CO. |
| Shared Package | |
| ML20216C524 | List: |
| References | |
| 50-263-98-04, 50-263-98-4, NUDOCS 9805190300 | |
| Download: ML20216C521 (4) | |
See also: IR 05000263/1998004
Text
.
/parg*o
UNITED STATES
NUCLEAR REGULATORY COMMISSION
8
n
REGION lil
!!
$
801 WARRENVILLE ROAD
LISLE, ILLINOIS 60532-4351
t3 * * * * * ,o
May 8, 1998
Mr. M. Wadley, Vice President
Nuclear Generation
Northem States Power Company
414 Nicollet Mall
Minneapolis, MN 55401
SU3 JECT:
NRC INSPECTION REPORT NO. 50-263/98004(DRP) FOR MONTICELLO
Dear Mr. Wadley:
On April 14,1998, the NRC completed an inspection at the Monticello reactor facility. The
enclosed report presents the results of that inspection. Also enclosed is a copy of the Office of
Nuclear Reactor Regulation (NRR) response, dated February 11,1997, to an NRC Region ill
Task Interface Agreement regarding acceptability of use of leak-before-break analysis for
environmental qualification of equipment in some operability evaluations at Monticelle. This
issue is discussed in Section E 8.2 of the enclosed inspection report.
l
Dudng the seven-week period covered by this inspection report, the conduct of activities at the
Monticello facility was generally characterized by safety-conscious operations and careful
radiological work controls. The preparation work performed to support the 1998 refueling outage
was effective as evidenced by the excellent coordination and execution of work to date.
However, the inspectors identified some specific weaknesses with the performance of the
engineering and maintenance staff during this inspection period. One weakness involved the
modification process in that the installation of a jumper / bypass to support replacement of a
condensate service water system relief valve was not considered in the associated
10 CFR 50.59 review for this modification. Another weakness pertained to the thoroughness of
the evaluation of a water hammer event associated with the high pressure coolant injection
system. Although the inspectors did not identify any violations of regulatory requirements in
connection with these activities, we are concemed that your staff did not aggressively pursue
these issues until prompted by NRC inspectors. We will continue to monitor the affectiveness of
your staff's assessment of these issues.
f\\
9805190300 980508
ADOCK 05000263
G
..
,
!
l
M. Wadley
-2-
in accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter and its
enclosures will be placed in the NRC Public Document Room.
Sincerely,
W hr
l
Geoffrey E. Grant, Director
Division of Reactor Projects
Docket No.: 50-263
License No.: DPR-22
Enclosures:
1. Inspection Report
No. 50-263/98004(DRP)
2. TaskInterface Agreement
Response dated February 11,1997
cc w/encis:
Plant Manager, Monticello
State Ucison Officer, State
of M;nnesota
l
_ _ _ _ _ _
_ _ _ _ _ - _
l
-
.
l
M. Waaley
-2-
In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter and its
enclosures will be placed in the NRC Public Document Room.
Sincerely,
/s/ Marc L. Dapas for
Geoffrey E. Grant, Director
Division of Reactor Projects
Docket No.: 50-263
License No.: DPR-22
Enclosures:
1.
- nspection Report
No. 50-263/98004(DRP)
2.
Task Interface Agreement
Response dated February 11,1997
DOCUMENT NAME: R:\\insprpts\\pnwers\\ mon \\ mon 98004.drp
To receive a copy of this document, Indicate in the boa *C* = Copy without attachment / enclosure "E" = Copy with attachment / enclosure
- N* = No copy
OFFICE
Rlli
&
Rlli
e
RIII
y$h
GGrant 4
NAME
Kunowski:dpqfi)
JMcB
DATE
05/9/98
N
05/9/98
05/$/98
OFFICIAL RECORD COPY
!
'
_a
,
,
.
.
M. Wadley
-3-
Distribution:
CAC (E-Mail)
Project Mgr., NRR w/encls
A. Beach w/encls
'
J. Caldwell w/encls
B. Clayton w/encls
SRI Monticello w/encls
DRP w/encls
TSS w/encls
DRS (2) w/encls
Rlli PRR w!sncis
PUBLIC IE-01 w/encls
Docket File w/encls
GREENS
,
LEO (E-Mail)
DOCDESK (E-Mail)
.
I
190033
l
l
l