ML20212A106
| ML20212A106 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 02/20/1987 |
| From: | Gagliardo J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Dewease J LOUISIANA POWER & LIGHT CO. |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737 NUDOCS 8703030289 | |
| Download: ML20212A106 (2) | |
See also: IR 05000382/1986020
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FEB 2 01987
In Reply Refer To:
Docket: 50-382/86-20
Louisiana Power & Light Company
ATTN: - J. G. Dewease, Senior Vice President
Nuclear Operations
N-80
317 Baronne Street
New Orleans, Louisiana
70160
Gentlemen:
Thank you for your letter of January 9,1987, in response to our letter
and inspection report dated December 11, 1986. We have reviewed your reply
and find it responsive to the request for information concerning the design
modifications and startup of your postaccident sampling system (PASS). We
will review the implementation of your PASS startup, acceptance testing, and
chemistry technician operator training and qualification programs during a
future inspection to determine that full compliance with the requirements of
NUREC-0737 has been achieved and will be maintained.
Sincerely,
" Original Signed by;
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R. E. Hall" fv
J. E. Gagliardo, Chief
Reactor Projects Branch
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Louisiana Power & Light Company
ATTN:
G. E. Wuller, Onsite
Licensing Coordinator
P. O. Box B
Killona, Louisiana
70066
Louisiana Power & Light Company
ATTN:
N. S. Carns, Plant Manager
P. O. Box B
Killona, Louisiana
70066
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K. W. Cook, Nuclear Safety and
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317 Baronne Street
P. 0. Box 60340
New Orleans, Louisiana
70160
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January 9, 1987
A4.05
Nuclear Regulatory Commission
Document Control Desk
Washington, D.C. 20555
Subject: Waterford 3 SES
Docket No. 50-382
License No. NPF-38
NRC Inspection Report 86-20
'
Attached is the Louisiana Power and Light Company (LP&L) response to the
NRC request for information identified in Inspection Report No. 86-20
relative to changes to the Post Accident Sampling System at Waterford 3.
If you have any questions on the response, please contact G.E. Wuller,
Operational Licensing, at (504) 464-3499.
Very truly yours,
2E
K.W. Cook
Nuclear Safety and
Regulatory Affairs Manager
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cc:
R.D. Martin, NRC Region IV
G.W. Knighton, NRC-NRR
J.H. Wilson, NRC-NRR
NRC Resident Inspectors Office
E.L. Blake
W.M. Stevenson
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"AN EQUAL OPPORTUNITY EMPLOYER"
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Atttchment to
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Sheet 1 of 2
LP&L Response to NRC Inspection Report 86-20
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Waterford 3 is completing installation of a Station Modification which
changes and improves certain sampling and analysis capabilities of the Post
Accident Sampling System (PASS).
The PASS is a dedicated system which provides the capability to obtain and
analyze samples from either tha hot leg of the Reactor Coolant System (RCS)
or the Safety Injection System (SIS) sump following a design base accident.
Instrumentation provides insitu analysis of pH, dissolved oxygen and
dissolved hydrogen. Dissolved oxygen and pH are analyzed on depressurized,
flowing streams with in-line probes. Dissolved hydrogen is analyzed on a
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pressurized liquid sample isolated in a 10 m1 sample bomb. This sample is
then stripped of dissolved gases through batch processing using a
combination of vacuum, sample heating, and argon sparging. The stripped
gas sample is trapped and remotely routed to an in-line gas chromatograph
for hydrogen analysis. A grab sample of the stripped gas can be manually
extracted and transported to the Primary Chemistry Lab for isotopic gas
analysis.
The PASS is capable of obtaining dilute and undilute liquid grab samples
and a containment atmosphere gas grab sample for further analysis. The
diluted liquid sample can be diluted up to 1,000 : 1, and analyzed onsite
for boron and isotopic composition. The undiluted liquid sample is sampled
~
and contained in a shielded cask, which can be shipped offsite for chloride
and confirmatory analysis. An agreement for this work is in place with Oak
Ridge National Laboratories.
The grab samples are obtained in a separate shielded cubicle to reduce
operator exposure and all samples have their own ventilated sampling boxes.
,
The Process Control Panel contains instrumentation readouts and permits
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remote operation of the analyzers and valve manipulation.
Prior to Refuel I completion and restart of the plant, LP&L Chemistry
technicians will complete PASS training. This training will provide:
1.
General operation and theory of PASS
2.
Description of the Station Modification; skid locations, functions,
and operating parameters
3.
Description of the designed sampling, purging and flushing flow paths
4.
Operator knowledge of safety m3 radiological aspects required during
PASS operation.
PASS will be functionally tested as part of the Station Modification
installation and testing requirements. Acceptance testing and LP&L
Chemistry technician qualification will be performed during mode 3 when the
RCS reaches Normal Operatirg Pressure and Temperature (N0P/NOT).
Acceptance testing of the PASS will be completed in two phases. The first
phase will consist of operationally testing PASS functions during NOP/NOT
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prior to 5% power.
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Attechaznt to
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Sheet 2 of 2
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At this time RCS conditions will allow comparison of PASS sampling to
Primary Sample Panel (PSL) sampling for pH, dissolved oxygen and boron.
The second phase of PASS testing will occur at 100% power when RCS hydrogen
and isotopic conditions are established. A PASS sample will be analyzed
and compared to PSL results for hydrogen and radioisotopic concentrations.
The restart window will be short between Mode 3 when RCS conditions will
allow operation of PASS and the 5% power plateau. At that time we will
qualify enough chemistry technicians as PASS Operators to meet the
requirements of NUREG 0737 and not restrict the scheduled restart.
Qualification will consist of hands-on operation utilizing revised
calibration and operating procedures / covering the following:
1.
Startup and safe shutdown of PASS
2.
Calibration of in-line PASS instrumentation
a.
pH
b.
Dissolved Oxygen
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c.
Gas Chromatograph (GC)
3.
Operation of PASS for in-line analyses
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a.
pH analysis
b.
Dissolved Oxygen analysis
c.
Gas stripping & GC analysis
4.
Collection of a diluted liquid sample
5.
Collection of an undiluted liquid sample.
These actions will meet requirements of NUREG 0737 and result in
operability of PASS. At that time the normal, routine program of PASS
maintenance, operability testing, and operator training will be initiated.
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