ML19343C681
| ML19343C681 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 02/17/1981 |
| From: | Neisler J, Williams C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19343C679 | List: |
| References | |
| 50-373-81-01, 50-373-81-1, 50-374-81-01, 50-374-81-1, NUDOCS 8103250023 | |
| Download: ML19343C681 (3) | |
See also: IR 05000373/1981001
Text
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U.S. NUCLEAR REGULATORY COMMISSION
OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No. 50-373/81-01; 50-374/81-01
Docket No. 50-373; 50-374
License No. CPPR-99; CPPR-100
Licensee: Commonwealth Edison Company
P. O. Box 767
Chicago, IL 60690
Facility Name:
LaSalle County Station, Units 1 and 2
Inspection At:
La Salle Site
Inspection Conducted: January 7 and 8, 1981
Inspector:
J. H. Neisler
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Reviewed By:
C. C. Willi
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Projects Section 2
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Inspection Summary
Inspection on January 7 and 8, 1981 (Report Nos. 50-373/81-01; 50-374/81-01)
Areas Inspected: Rip rap on spillway; followup unresolved items. Suppression
pool modifications; safety relief valves modification and installation. The
inspection involved a total of 12 inspector-hours on site by one NRC inspector.
Results: No items of noncompliance or deviations were identified during this
inspection.
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DETAILS
Persons Contacted
Principal Licensee Employees
L. J. Burke, Site Project Superintendent
- T. E. Quaka, Site Quality Assurance Superintendent
- W. Reidy, Quality Assurance Engineer
- J.
Gieseker, Project Construction
- R. T. Rose, Lead Structural Engineer
- G.
Groth, Project Construction
- J. J. D' Antonio, Quality Assurance Engineer
Contractor and Other Personnel
M. R. Daugherty, Quality Assurance Manager, Walsh Construction Company
M. Wherry, Quality Control Manager, Morrison Construction Company
J. Zappia, Assistant Superintendent, Morrison Construction Company
- Denotes those persons attending exit interview.
Licensee Action on Previously Reported-Items
(Closed) Unresolved Item (50-373/80-42-01): Compatability of Fire Code CT
gypsum material with cable jackets. Collyer Cable Company laboratory report
78-18 of cable jacket material coated with firecode CT gypsum and air oven
tested at 90 C for 100 days, shows no deleterious effects; neither chemically
nor physically to cable jacket. Kerit Company letter to U.S. Gypsum dated
May 2, 1980, indicated that gypsum will have no degrading effect on their
cable. Okonite Company letter to CECO SNED dated September 18, 1978, states
that, based on their investigation that Firecode CT gypsum would have no
deleterious effect on Okonite cables. Since cables at La Salle are jacketed
with hypalon, neoprene or kerit, and these materials have been reviewed for
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compatability with gypsum materials this item is resolved.
(Closed) Unresolved Item (50-373/80-42-02): Ability of gypsum fire stops to
maintain control room integrity. Cracks noted during ASTM E-119 fire tests
did not extend-through the penetration. Vapors noted during the fire test
were determined to be steam from the gypsum. The control room is pressurized
to prevent the entrance of noxias gases and a breathing air manifold is in-
stalled to permit the operators to perform their functions in the presence of
smoke. No chlorine gas is used for water treatment at La Salle since all algae
treatment of heat exchangers_is accomplished by using calcium hypochlarite.
-This is resolved.
(Open) Item reported pursuant to 10 CFR 50.55(e) (50-374-80-xx-02): Cracked
insulation on wiring external _to containment penetrations. All Amphenol
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pentrations for instrument and control cables returned to manufacturer's
facility. Test procedures have been developed and approved by owners.
Procedure requires insulation resistance test be performed while the
penetration assembly is immersed in an agueous electrolytic solution.
This item remains open pending completion of penetration testing and
repair.
Program or Functional Areas Inspected
The reworked safety relief valves from Unit 2 have been installed on Unit 1.
The inspector examined documentation including Form NV-1 Code Data Reports
for 19 reworked safety relief valves.
The NV-1 forms indicate that disc
inserts, nozzles, bonnet stud nuts, adjusting bolts, and the thrust bearing
adapters have been replaced. The bodies, spring washers, bonnets, spindle
assemblies were remachined and an adjusting bolt button assembly added to
each valve.
Instrumentation
The inspector examined documentation pertaining to instruments purchased
by the site mechanical contractor. Documentation for flow orifaces included
purchase orders, certified material test reports, data sheets and flow curves.
Rosemount Model 1152 transmitter documentation includes test reports by Wyle
Laboratories of seismic tests per IEEE-344, pressure tests required by ASME
Section III, and environmental testing performed in accordance with the
requirements of IEEE-323.
Suppression Pool Modifications
The structural contractor, CB&I has completed the installations of additional
bract.* in the suppression pools in both units. Painting contractor is pre-
sently sandblasting and painting carbon steel added during the modifications.
- The inspector examined reports of three audits and seven surveillances conducted
on' activities performed by CB&I during modifications to the suppression pools.
Exit Interview
The inspector met with licensee representatives (denoted under Persons
Contacted) at the conclusion of'the inspection on January 8, 1981. The
inspector summarized the scope and findings of the inspe'ction. The licensee
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acknowledged the findings as reported.
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