ML20035A392
| ML20035A392 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 03/18/1993 |
| From: | Depuydt M COMMONWEALTH EDISON CO. |
| To: | Murley T NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation |
| References | |
| GL-89-13, NUDOCS 9303260001 | |
| Download: ML20035A392 (2) | |
Text
!
['i } 1400 Opus Place
~
Commonwe:lth Edison
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' Downers Grove, lilinois 60515 1-
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l March 18, 1993
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t i
Dr. Thomas E. Murley Office of Nuclear Reactor Regulation U.S.
Nuclear Regulatory Commission Washington, D.C.
20555 Attn:
Document Control Desk i
Subject:
LaSalle County Stations Unit 1 and 2 Flow Testing Required by Generic Letter 89-13 NRC Docket Nos. 50-373 and 50-374 j
Psferences: (a)
NRC Generic Letter 89-13, Service Water Problems Affecting Safety-Related Equipment, dated July 18, 1989
+
(b)
M. Richter (CECO) letter.to USNRC, dated January 29, 1990, CECO Response to GL 89-13 for Dresden, Quad Cities, Zion, LaSalle County, Byron and Braidwood (c)
NRC Generic Letter 89-13, Supplement 1, Questions and Answers on Generic Letter 89-13, dated April 4, 1990
Dear Dr. Murley:
In LaSalle's original response to Generic Letter 89-13, l
reference (b), it was stated that for the RHR Seal Coolers and LPCS Motor Coolers LaSalle Station performed differential pressure flow tests, but no heat transfer testing.
In order to comply with the Generic Letter the coolers are disassembled and inspected / cleaned once per refuel cycle.
LaSalle Station no longer intends to perform flow testing for these coolers at regular intervals.
These are very small r
heat exchangers and LaSalle will continue to open these heat exchangers every refuel outage for inspection and cleaning.
Inspections have consistently revealed only minor corrosion with little fouling, and the coolers have consistently been able to pass their required flow.
/
nd:cah/1 250038 gpI i
9303260001 930318
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-l h PDR ADOCK 05000373 i
P PDR 4
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Dr..Murley March 18, 1993 In accordance with guidance provided in Generic Letter 89-j 13, Enclosure 2,
" Program for Testing Heat Transfer Capability" t
and Generic Letter 89-13 Supplement 1, Section "B" on. Maintenance l
of Heat Exchangers, LaSalle believes that this practice of i
regular inspection and maintenance is an acceptable; form of l
compliance to the Generic Letter.
If there are any questions concerning this matter, please direct them to this office.
Respectfully, ul3Us-paydL Mary Beth Depuydt 7
Nuclear Licensing Administrator i-cc:
A.B.
Davis, Regional Administrator - RIII I
R.J.
Stransky, Project-Manager - NRR D.
Hills, Senior Resident Inspector - LaSalle Office of Nuclear Safety - IDNS J
I i
l nd:cah/2 i
.