ML19347C458
| ML19347C458 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 07/21/1972 |
| From: | Minnick L YANKEE ATOMIC ELECTRIC CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML19347C457 | List: |
| References | |
| NUDOCS 8011190477 | |
| Download: ML19347C458 (2) | |
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YhNKEE ATOMIC ELECTRIC COMPANY
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20 TURNPIKE ROAD, WESTBOROUGH, MASSACHUSETTS 01581
! -t TELEPHONE 617 366 9011 11 July 21, 1972
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Mr. James P. O 'Reilly, Director Division of Compliance, Region 1 h
United States Atomic Energy Commission 970 Broad Street
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Newark, New Jersey 07102 h
Reference:
USAEC letter dated June 22, 1972, Docket No. 50-29 g
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Dear Sir:
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Your letter requests Yankee to provide verification that valves within the reactor coolant pressu e boundary meet the minimum wall thickness requirements of specified codes and standards, or, in the event that verification is not available, to advise you of our plans j
Fil and schedules for demonstrating by suitable means that such valves are acceptable with respect to wall thickness, y'r.
I As you are undoubtedly aware the codes and standards in effect at rg the tine valves for this plant were purchased and installed did not re-1 It is of g
quire documentation of specific wall thickness measurements.
c interest that there has been no indication during eleven years of nor-Rt mal operation or in the course of many hydrostatic tests at p essures 3
well above operating pressure that any valve in the primary system was or is in any way incapable of proper service due to less than adequate
$g wall thickness.
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In that the plant has been operational for an extended period of A
. tine a program of obtaining physical measurements to provide the de-N" sired documentation will result in substantial radiation exposure to the 3
personnel involved. We therefore propose to investigate and evaluate the effectiveness and appropriateness of various possible means of demon-strating the adequacy of these valves to determine the optimum approach gw under the circumstances.
4; A:.c We will inform you as to the details of our proposed program as quickly as it is complete or in any event as to its status in ninety days.
g Our next refueling period is presently scheduled for October 1973 so that g
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Mr. J P O'Reilly July 21, 1972
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d3:x wH4 to the extent physical measurements are required they will be beguri at that time. The program we will propose will be based on conpletion
's within the three year period specified in your letter.
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We trust that the above is responsive to your letter and, of course, Q
are prepared to discuss this matter at your convenience.
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Very truly yours, YANKEE ATOMIC ELETRIC COMPA1Tf i,
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L. E. Minnick
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Vice President s.
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