ML17177A261
| ML17177A261 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 02/06/1992 |
| From: | Miller H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML17177A262 | List: |
| References | |
| NUDOCS 9202180185 | |
| Download: ML17177A261 (3) | |
See also: IR 05000237/1991033
Text
.*
Docket No. 50-237
Docket No. 50-249
Commonwealth Edison Company
ATTN:
Mr. Cordell Reed
Senior Vice President
Opus West III
1400 Opus Place
Downers Grove, IL
60515
Dear Mr. Reed:
FEB .. 6 1992
SUBJECT:
NRC INSPECTION REPORTS NO. 50-237/91033(DRS);
50-249/91036(DRS)
This refers to the routine safety inspection conducted by
Ms. v. Patricia Lougheed and Messrs. Ronald Langstaff and
Kombiz Salehi of this office on December 3 - 31, 1991.
This
inspection covered activities at the Dresden Nuclear Power
Station, Units 2*and 3, as authorized by NRC Operating Licenses
No. DPR-19 and DPR-25; and at the corporate engineering offices
in Downers Grove.
Prior to leaving the site, our findings and
conclusions were discussed with Mr. Brent Shelton,
Mr. Charles Schroeder, and others of your staff.
Also, on
December 31, 1991, Mr. L. Gerner and I discussed your proposed
corrective actions regarding the containment liner water
instrusion.
The enclosed copy of our inspection report identifies areas
examined during the inspection.
This inspection focused on
engineering and technical support provided by different segments
of your organization, including corporate engineering, onsite
engineering, and the plant technical staff.
In these areas, the
inspection consisted of selective examination of procedures and
representative records, observations, and interviews with
personnel.
A violation concerning your lack of corrective action on water
leaking into the sand pocket region of the Unit 3 containment
liner was identified.
A written response is required.
In order for us to evaluate the effects of this leakage on
containment integrity, we request that your response to the
violation also address the following:
(1) the leakage impacting
the Unit 2 drywell liner and its effects on drywell integrity;
(2) why some of the sand pocket drain lines on Unit 3 remained
blocked at the time of our inspection even though the
surveillance had already been performed to ensure they were open;
(3) the results of the tests, analyses, and inspections your
9202180185 920206
ADOCK 05000237
G
/E-01
Commonwealth Edison Company
2
FEB - C 1992
staff indicated would be performed during the December 31, 1991
telephone conference; and (4) comparison of these results with
those obtained in 1988.
This inspection identified an additional concern associated with
your September 8, 1988, response to Generic Letter 87-05.
Your
response stated that surveillances to check for leakage from the
drain lines for the sand pocket regions would be performed and
"any evidence of leakage through any of the drain lines
constitutes an abnormal condition to be reported and for
corrective measures to be initiated."
As noted in the inspection
report, leakage has been increasing every refueling outage since
issuance of this generic letter and has never been reported to
the NRC.
During the inspection, your staff indicated that this
response did not mean that you would report leakage to the NRC.
Please clarify your response to this generic letter.
In accordance with 10 CFR 2.790 of the Commission's regulations,
a copy of this letter, the enclosures, and your response to this
letter will be placed in the NRC Public Document Room.
The responses directed by this letter and the accompanying Notice
are 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.
We will gladly discuss any questions you have concerning this
inspection.
Enclosures:
1.
2.
Inspection Reports
No. 50-237/91033(DRS);
No. 50-249/91036(DRS)
See Attached Distribution
RIIIfM ..
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Salehi/cg
Langstaff
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Sincerely,
CHlGir.JAL SIGNED BY HUBrnT J. MILLER
H. J. Millerj Director
Division of Reactor Safety
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Lougheed
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Martin
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Commonwealth Edison Company
Distribution
cc w/enclosures:
D. Galle, Vice President -
Operations
T. Kovach, Nuclear
Licensing Manager
E. D. Eenigenburg, Station Manager
DCD/DCB (RIDS)
OC/LFDCB
Resident Inspectors LaSalle,
Dresden, Quad Cities
Richard -Hubbard
J. w. Mccaffrey, Chief, Public
Utilities Division
3
Robert Newmann, Office of Public
Counsel, State of Illinois Center
Licensing Project Manager, NRR
FE8 - 6 1992