IR 05000295/1985005
| ML20154L178 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 03/06/1986 |
| From: | Shafer W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-3.D.3.4, TASK-TM NUDOCS 8603110412 | |
| Download: ML20154L178 (2) | |
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MAR 6 886 Docket No. 50-295 Docket No. 50-304 Commonwealth Edison Company ATTN: Mr. Cordell Reed Vice President Post Office Box 767 Chicago, IL 60690 Gentlemen:
This refers to your comitments to NUREG-0737, Item III.D.3.4 for the Zion control room emergency air cleaning system, including the acceptability of the 1983 repairs and modifications. Unresolved Items No. 295/85005-08; 304/85005-08 (Inspection Reports No. 50-295/85005;50-304/85005) address a concern with the use of tape and sealant on the ductwork and caulking on the filter housings. Guidance from the Director, Division of Licensing, NRR (memorandum dated August 26,1985) concerning tape and sealant use was attached to Inspection Reports No. 50-295/85040; 50-304/85041.
On February 4, 1986, a conference call was conducted to discuss this matter with participation by NRR, Region III, and CECO representatives, including Messrs. P. LeBlond and T..Rieck. During that conference call, the CECO representatives agreed to conduct a quantitative leakage test of the control room emergency air filtration system in the spring of 1986 to verify the validity of your NUREG-0737, III.D.3.4 safety evaluation assumptions, to demonstrate that the 1983 repairs and modifications (involving the application of silicone sealant and other temporary patching material) have not significantly degraded, and to determine the need for and frequency of any required periodic retests based on the quantitative test results.
Because'we intend to witness your leakage tests, please inform the Region and NRR of your test schedule at least 30 days before the tests are to begin. We-also request that your test procedures be made available to Region III and NRR personnel in sufficient time to allow their review prior to conduct of the tests.
8603110412 B60306 PDR ADOCK 05000295
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Commonwealth Edison.Ccmpany 2 MAR 6 1986 We will gladly discuss any questions you have concerning this matter.
The cognizant Region III technical contact is Charles Gill (790-5261).
The NRR reviewer in this area is Jack Hayes (301492-7471).
sincerely,
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sWinal si9eed by W,0. Shaf#
W. D. Shafer, Chief Emergency Preparedness and Radiological Protection Branch cc:
D. L. Farrar, Director of Nuclear Licensing G. Plim1, Station Manager Jan Norris, Project Manager, NRR John Hayes, NRR Ted Quay, NRR DCS/RSB(RIDS)
Licensing Fee Management Branch Resident Inspector, RIII.
Phyllis Dunton, Attorney General's Office, Environmental Control Division Mayor, City of Zion
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