ML16341G051
| ML16341G051 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 04/11/1991 |
| From: | Richards S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Shiffer J PACIFIC GAS & ELECTRIC CO. |
| Shared Package | |
| ML16341G052 | List: |
| References | |
| NUDOCS 9104290039 | |
| Download: ML16341G051 (6) | |
See also: IR 05000275/1991003
Text
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION V
1450 MARIALANE,SUITE 210
WALNUTCREEK, CALIFORNIA94596
R
~
1 ]gSl
Docket Nos.
50-275
and 50-323
Pacific Gas
and Electric Company
77 Beale Street,
Room 1451
San Francisco,
California 94106
Attention:
Mr.'.
D. Shiffer, Senior Vice President
and General
Manager
Nuclear
Power Generation
Gentlemen:
Subject:
NRC Inspection of Diablo Canyon Units 1 and
2
,.This refers to the routine inspection
conducted
by Messrs.
P.
P. Narbut,
K.
E.
Johnston,
B.
M, Olson,
and
P.
Galon during the period of February
3 thr ough
March 16,
1991.
This inspection
examined your activities
as authorized
by NRC
License
Nos.
At the conclusion of the inspection,
discussions
of their findings were held with Mr. J.
D. Townsend,
and other
members of your staff.
Areas examined during this inspection are described
in the enclosed
inspection
report.
Within these areas,
the inspection consisted of selective
examinations of procedures
and representative
records,
interviews with
personnel,
and observations
by the inspectors.
Your attention is drawn to paragraph
S.a of the enclosed report, which
discusses
the intake structure's
exposure to sea water and the r'esulting
problems with equipment corrosion
and degradation.
We-recognize that thus
.far, this problem has apparently not significantly affected safety-related
systems
contained in the intake structure,
however
we are concerned that
degradation of the balance of plant equipment located in the intake structure
could result in a plant transient,
or that eventually safety"related
equipment
will be impacted.
Based
on the results of this inspection, it appears that one of your
activities was not conducted in full compliance with NRC requirements,
as set
forth in the Notice of Violation, enclosed
herewith as Appendix A.
Your
response
to this notice is to be submitted in accordance
with the provisions
as stated in Appendix A, Notice of Violation.--
In accordance
with 10 CFR 2.790 (a),
a copy of this letter and the enclosures
will be placed in the
NRC Public Document
Room.
The response
directed
by this letter is not subject to the clearance
procedures
of the Office of Management
and Budget
as required by the Paperwork
Reduction Act of 1980,
PL 96-511.
'9104290039
910411
ADOCK 0'0027
'
-2-
ApR i 1
1991
. Should you have
any questions
concerning this inspection,
we will be pleased
to discuss
them with you.
Sincerely,
S.
A. Richards,
Chief
Reactor Projects
Branch
Enclosures:
1.
Inspection
Report
kos.
50-275/91-03
and 50-323/91-03.
2.
Appendix A, Notice of Violation
cc w/enclosure:
J. A..Sexton,
R.
F.
L'ocke,
. PG&E
J.
D. Townsend,
PG&E (Diablo Canyon)
D.
A. Taggert,
PG&E (Diablo Canyon)
T.
L. Grebel,
PG&E (Diablo Canyon)State
of California
News Services,
PG8E
State of California
Sandra Silver (Report Only)
'
-3-
APR i i 1S9i
bcc w/enclosures:
Docket File
'.
Cook
B. Faulkenberry
J. Martin .
Project Inspector
Resident Inspector
bcc w/enclosure
2:
J. Zollicoffer
N. Western
M. Smith
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4/ I ~/91
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