ML20148H702
| ML20148H702 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 11/08/1978 |
| From: | Turbak M COMMONWEALTH EDISON CO. |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7811140099 | |
| Download: ML20148H702 (2) | |
Text
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one First Nabonal Plaza, Chicago, Ilhnois iiO#
Address Reply to: Post Ofhce Box 767 Chicago Ilhnois 60690 November 8, 1978 4
Mr. Dennis L.
Ziemann, Chief Operating Reactors - Branch 2 Division of Operating Reactors U.S. Nuclear Regulatory Commission Washington, D.C.
20555 i
Subject:
Dresden Station Unit 1 Monthly Progress Report as Required by Amendment No. 23 to Facility Operating License No. DPR-2 NRC Docket No. 50-10
Dear Mr. Ziemann:
As required in Amendment No. 23 dated January 6, 1978 to Facility Operating License DPR-2 for Dresden Station Unit 1, we are transmitting the October 1978 monthly report on progress towards completion of our scheduled ECCS, IEEE-279 and fire pro-tection modifications including related activities which could affect these projects such as the decontamination program.
HPCI The missile barriers for the diesel generator exhaust silencers were poured.
The valve house and penetration structure are complete except for the roof.
Structural work continues on the north electric duct run.
Purchase orders were issued to General Electric for the revised thermal shock analysis and to Exxon for the revised Appendix K and reactivity addition analysis.
The batteries and motor control centers arrived on site,,
The pumps, motors, HPCI diesel generator 7 and several other components are expected to arrive by the end of the year.
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Commonwealth Edison NRC Docket No. 50-10 Mr.
D. L. Ziemann: November 8, 1978 IEEE-279 The motor control center vendor has informed us the MCCs have passed their seismic test and delivery is expected in January 1979.
During the final review of the electrical penetra-tions prior to shipment, a minor problem was found concerning the back support plate.
The factory has been directed to repair the plate.
Delivery of the penetration is now expected in December.
It is expected that this delay will not have a serious impact on the construction schedule.
The vendor prints on the post accident monitoring equipment have been returned.
F_ ire Protection The piping portion of the fire protection systems has been resolved and the vendor is expected to be on site in early December.
Some questions remain to be resolved on the electrical portion of the system.
We are working closely with the vendor to resolve all remaining questions.
Chcmical cleaning All 42 contract specifications have been awarded.
99% of the structural steel work is complete.
99% of the concrete work will be complete by December 1, 1978.
50% of the blockwork is complete.
10% of the piping is complete.
Piping and mechanical installation work in the sphere continues.
Engineering emphasis is on assisting the mechanical contractor with procurement.
Construction emphasis is on com-pletion of the facility exterior prior to winter weather.
Very truly yours, jht M. S. Turbak Nuclear Licensing Administrator Boiling Water Reactors
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