ML19273B569
| ML19273B569 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 04/06/1979 |
| From: | Brown S VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Parr O Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19273B570 | List: |
| References | |
| 231, NUDOCS 7904090179 | |
| Download: ML19273B569 (1) | |
Text
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Vepco April 6,1979 Mr. Harold R. Denton, Director Serial No. 231 Office of Nuclear Reactor Regulation PSE&C/CES:adw:mc Attn: Mr. O. D. Parr, Chief Light Water Reactors Branch No. 3 Docket Nos. 50-404 Division of Project Management 50-405 U. S. Nuclear Regulatory Conmission Washington, D. C. 20555
Dear Mr. Denton:
In your letter of October 6,1978 you outlined requirements for development of a settlement monitoring program 'o be conducted during the construction phase for all seismic Category I structu', s for North Anna Units 3 and 4.
Our present criteria is that all seismic Category I structures, with the exception of the Units 3 and 4 Service Water Pump House, be founded on rock to minimize settlement and its effects.
A report entitled " REPORT ON THE CONSTRUCTION SETTLEMENT MONITORING PRO-GRAM FOR NORTH ANNA NUCLEAR POWER STATION-UNITS 3 AND 4, VIRGINIA ELECTRIC AND POWER COMPANY" has been prepared and we are forwarding 40 copies for your information.
The report addresses each of your/ concerns relative to the develop-ment of a construction settlement mon' ring program.
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