IR 05000373/1978033
| ML19284A524 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 01/17/1979 |
| From: | Maura F, Streeter J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19284A520 | List: |
| References | |
| 50-373-78-33, NUDOCS 7903070078 | |
| Download: ML19284A524 (5) | |
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U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No. 50-373/78-33 Docket No. 50-373 License No. CPPR-99 Licensee:
Commonwealth Edison Company P. O. Box 767 Chicago, IL 60690 Facility Name: La Salle County Nuclear Power Station, Unit 1 Inspection At:
La Salle Site, Marseilles, Illinois Inspection Conducted: December 5, 6, 19, and 20, 1978
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Inspector:
F. Maura
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y-[i 7 / ~79 Approved By:
F. Streeter, Chief Nuclear Support Section 1 Inspection Summary Inspection on December 5, 6,19, and 20, 1976 (Report No. 50-373/78-33)
Areas Inspected:
Routine, unennounced inspection of preoperational test program and review of preoperational test procedures. The inspection involved 28 inspector-hours onsite by one NRC inspector.
Results: No items of noncompliance or deviations were identified.
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DETAILS 1.
Persons Contacted
- G.
Diedrick, Station Assistant Superintendent
- R.
Bishop, Technical Staff Supervisor
- 'w. Huntington, Lead Special Projects Engineer The inspector also interviewed other licensee employees including members of the technical and quality assurance staff.
- Denotes those attending exit interview.
2.
Overall Preoperational Test Program The inspector reviewed the latest revisions to the Startup Manual procedures to ensure the changes did not conflict with FSAR commitments.
Of the 63 preoperational test and system demonstrations required to be completed prior to fuel loading, the licensee has conpleted writ-ing 59 test procedures and has approved for use 26 test procedures.
Five systens or partial systems have been turned over for preopera-tional testing and five preoperational tests are in progress but incomplete as of December 20, 1978.
50 items of noncompliance or deviations were identified.
3.
Review of Preoperational Test Procedures The inspector completed his review of preoperational test procedure PT-PC-lul, " Int egra ted Leak Rate Test", Revision 1.
The procedures will meet the requiremeats of Regulatory Guiae 1.66, FSnR commit-ments, Startup Manual requirements and applicable A?;SI standards once the following comments are incorporated:
a.
Include drywell high pressure switches as part of the containment boundary.
b.
Incorporate testing of the drywell vacuum breaker shaft seals and isolation valve seals.
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c.
Draining of some of the volumes during local leak rate testing can not be verified visually; therefore, criteria must be developed to ensure the volume is empty or visual indication provided.
d.
Add stabilization period during local leak rate testing when using the Fisher-Porter flowmeter rig.
Add building sketch and tables showing containment subvolumes, c.
weighing factors and location of instruments, f.
Develop criteria to be used in adjusting weighing factors of instrumentation in a specific subvolume is lost during test performance.
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g.
Include combustible gas control system as part of containment boundary during ILRT.
h.
Add step to ensure air tanks inside containment have been vented prior to ILRT.
i.
Add step to ensure drywell pneumatic air or N bottles' manifold is vented during ILRT.
J.
. Revise page 6.2-58 of the FSAR so that leakage limit and list of systems to be vented agree with other sections and amend-ments to the FSAR.
In addition, the inspector stated that the following items have been referred to IE:HQ for resolution and may require additional revisions to the procedure:
a.
Lack of local leak rate testing of the inboard feedwater isolation valve.
b.
Lack of local leak rate testing of the TIP isolation valves.
c.
Difference in the number of isolation valves being local leak rate tested at the Wm. H. Zimmer Station vs the La Salle Station.
d.
Exclusion of the MSIV's from the ILRT (especially the planned method of MSIV leakage subtraction from the ILRT results).
Length of ILRT (minimum of 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and 20 data points).
e.
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f.
Accounting for the MSIV packing leakage as part of MSIV leakage or inclusion.in the "B" and "C" type leakage, g.
Inspection, moisture control, and need for protective coatings in the area / volume under the liner weld channels.
In regard to item d., above, the licensee stated his plan is to conduct the ILRT with the MSLs vented and drained and then sub-tract the previously measured (local leak rate test) MSIV leakage from the ILRT results before comparing to the I?AT acceptance criteria. The licensee also stated that this was the method which the licensee has discussed with NRR.
The inspector stated that leakage subtraction is not an acceptable method.
In regard to item g., above, the weld channel plugs, the licensee stated their plans were not to replace them after the ILRT. The items d4.scussed in this paragraph remain unresolved.
No items of noncompliance or deviations were identified.
4.
New Fuel
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The inspector reviewed the licensee's plans to start receiving fuel during January 1979. The plan calls for the first 620 elements to be stored in the new fuel vault with the elements i~ndividually sealed in a plastic ba g. After the new fuel storage vault is full, the fuel received will be removed from plastic bags, inspected, channeled, and stored in the spent fuel pool (dry storage). The pool will be covered with a fire retardant material. The inspector expressed his concerns that the surf ace of the fuel elements ma:.
become contaminated with paint mist, uelding fumes,c.or dust (concrete, etc.) generated during the remaining construction activities.
The inspector f urther stated he will closely monitor the cleanliness maintained in the refueling floor area.
The licensee stated all construction activities will be completec in the refueling area prior to arrival of new fuel.
5.
Pipe Hangers and Seismic Restraints In response to an inspector's inquiry the licensee stated that:
a.
Complete installation of pipe hangers and seismic restraints will be required prior to fuel loading.
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b.
Prior to preoperational testing of a system; those hangers and restraints not installed will be listed as deficiencies.
e.
Hangers and restraints must be installed prior to the perfora-ance of any preoperational test section which calls for vibration measurements or observations.
No items of noncompliance or deviations were identified.
b.
Unresolved Items Unresolved items are matters about which raore information is required in order to ascertain whether they are acceptable items, items of non-compliance, or deviations. Unresolved items disclosed during the inspection are discussed in Paragraph 3.
7.
Exit Interview The inspector met with licensee representatives (denoted in Paragraph 1)
on December 20, 1978. The inspector summarized the, scope and findings of the inspection.
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