ML19331C098
| ML19331C098 | |
| Person / Time | |
|---|---|
| Site: | Marble Hill |
| Issue date: | 07/31/1980 |
| From: | Fiorelli G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Shields S PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA |
| References | |
| NUDOCS 8008140162 | |
| Download: ML19331C098 (1) | |
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8 UNITED STATES NUCLEAR REGULATORY COMMISSION d
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GLEN ELLYN. ILUNOIS 60m 3JUL 31 S00 Docket No. 50-546 Docket No. 50-547 s
Public Service of Indiana ATTN:
Mr. S. W. Shields Senior Vice President -
Nuclear Division P. O. Box 190 New Washington, IN 47162 Gentlemen:
Thank you for'your interim report dated July 24, 1980, pursuant to 10 CFR 50.53(e' s reinforcing steel installation which does not meet spect
.on requirements. We will review your final report on this w rter upon receipt.
Your cooperation with us is appreciated.
Sincerely.
aston Fiorelli, Chief Reactor Construction and Engineering Support Branch cc: Director, RCI/II Director. AEQD Chief, OEB/MPA IE Files Mr. G. N. Brown, Project Director cc w/ltr dtd 7/24/80:
C. Kammerer, CA l
H. Thornburg, IE Central Files PDR Local PDR NSIC Le2oeuf, Lamb, Leiby & Ma:Rae Mr. Dave Martin, Office of Attorney General Mr. John R. Galloway, Staff Director, Environment, Energy and Natural Resources Subcommittee s8.0 0 814 o lgg
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'PUBLIC SERVICE INDIANA S. W. Shields Senior Vim Presajent.
wcw owision July 24, 1980 Mr. James G. Kappler, Director Docket Nos.: STN 50-546 STN 50-547 U. S. Nuclear Regulatory Consnission Construction Permit Nos.:
Region III CPPR - 170 799 Roosevelt Road Glen Ellyn, Illinois 60137 CPPR - 171 Marble Hill Nuclear Generating Station - Units 1 and 2
Dear Mr. Kappler:
On June 27, 1980, Mr. S. J. Brewer of Public Service Company of Indiana, Inc., (PSI) notified your office of a potentially reportable item as required by 10 CFR 50.55(e). Results of reinforcing steel inspections perfonned during the Ccustruction Verification Program in accordance with SPP-2 tave shcun that there are instances where reinforcing steel installation does not meet specification requirements. These instances occur in the generic areas of clear cover, member thickness, size of reinforcing bar, number of bars and bar spacing.
For those reinforced concreta elements affected by the above items an engineering evaluation will be performed to determine if the element can resist the design basis loads in its presene condition.
For those reinforced concrete elements where a concern does exist, the following corrective actions will be carried out to mitigate such concerns:
1.
Concrete Cover a) Too much cover - (affects effective depth) - add extra bars bf drilling and grouting.
b) Not enough cover - (affects corrosion resistance, fire protection and bond) - gunite surface to insure cover locally.
2.
Member Thickness Drill and grout extra bars to offset reduction in member strength.
JUL 2 51980 P.O. Box 190, New Washington, Indiana 47162 812. 293.4441 4"ns ou 7 o
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SERV 0CE WDANA letter:
Mr. James G. Kappler July 24, 19.80 i
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3.
Rebar Size Drill and grout extra bars to offset reduction in member strength.
4.
Number of Bars Drill and grout extra bars to offset the reduction in member strength.
5.
Bar Spacing (Concern only exists when required number of bars is deficient)
Drill and grout extra bars to offset the reduction of member strength.
A more detailed description of these concerns and corrective actions will be available as part of the report on the Construction Verification Program in the near future.
This letter is intended to fulfill the requirements of an interim report as defined in 10 CFR 50.55(e). A final report will be submitted on or before September 11, 1980. If you have any questions on this report please feel free to contact me.
Sincerely.
S. W. Shields TDG/cg cc: Director of Inspection and Enforcement U. S. Nuclear Regulatory Comunission Washington, D. C.
20555 E. R. Schweibinz, P. E.
J. J. Harrison 4
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