ML072850101

1992/06/30-Oyster Creek September 2007 Evidentiary Hearing - Intervenors Exhibit 58, Letter from Alexander W. Dromerick to John J. Burton, Subject: Oyster Creek Drywell Containment

ML072850101
Person / Time
Site:	Oyster Creek
Issue date:	06/30/1992
From:	Dromerick A Office of Nuclear Reactor Regulation
To:	J. J. Barton GPU Nuclear Corp
SECY RAS
References
50-219-LR, AmerGen-Intervenor-58, RAS 14375, TAC M79166
Download: ML072850101 (2)

Text

U& NULA FEUIATOWY COMMM8IN Citizens Exhibits 58 btmhmwof IYfuck'(EJ"s

-C ,_AUC-. ..i ..*'~ -NITE STATES6 ..~ an a/ All______._ .-,.--: d '~WASHINGTO C2.fi-' '.:.,...d

"-.. " .' .:- .* ....:_ __ __ __ ___,__ _-;. Docket No. 50-21§.

.. --::.- :' Mr.' John J. Barton DOCKETED i-X' Vice President and Director .USNRC.tPU Nuclear Corporation'

'"'."October 1,2007 (10:45am)!;,-Oyster Creek Nuclear Generat Ing' Station Post Office Box 388... OFFICE OF SECRETARY Forked River, New Jersey 08731 RULEMAKINGS AND ADJUDICATIONS STAFF

Dear Mr. Barton:

.:

SUBJECT:

OYSTER CREEK DRYWELL -CONTAINMENfT TAC NO. M179166)In our letter of April 29,11992,z .regardinfg*

Oyster Creek drywell containment, we requested that CPU Nuclear Corporaton..(GPUN), continue ultrasonic testing (UT) thickness measurements at.refueling outages and at outages of opportunity

--.for the life of the plant. The"moasurements should cover not only 'areas previously inspected but-also accessible.areas which have never been inspected',.,-soas to confirm that the thicknesses of the corrdded areas are as projected and the corroded areas are:locallzed.'-:We also requested that you indicate-.your intent to comply with the above requirements as discussed in the Safety Evaluation.

,,.'!In :your letter of May 26, i992, GPUN committed to continue taking UT drywell...measurements at refueling outages and 'at other outages of opportunity.

The:measurements will be at areas previously inspected and also at other accessible

-'..areas not previously inspected.-.

Drywell thickness measurements will continue*for life.You also indicated that the following is your current plan for Oyster Creek:T:drywell UT thickness measu.ement.-,"(1) During the 14R outage, GPU Nuclear will take UT thickness measurements in the drywell sandb d region,' from the torus room side (outside the drywell), at shell locations not readily accessible from Inside the drywell. These are areas not previously inspected.

The specific locations selected for inspection will be identified once GPU has direct access to the sandbed region.Assuming that these measurements confirm that GPU has bounded the corrosion problem with current inspection locations, GPU does currently not plan to make repeat measurements at these specific locations.

(2) Now through the I5R outage, GPU Nuclear will continue taking UT thickness measurements in accordance with the priority method described in Reference 2, Attadhment I, nGPUN Specification IS-328227-004, Functional Requirements for Drywell Containment Vessel Thickness Examination.'

....9207060046 920630 ." :"U.PDR ADOCK 05000219-7eenp jat.Z0 S4ý:Cy- 0 :1 -c Y

"___ Mr" John J. Barton'2 (3) .After the 15R p learwill assess the condition of the , .:idrywell by evaluating the then current UT thickness measurements and'" ," will formulate 0an "extended inspection plan. The plan will identify.'measurement locations'Including frequency of inspection for the' .remaining life.of

.,.We have reviewed the 'above Information and find that your program commitments regarding UiT inspectionof'the Oyster Creek drywell containment are acceptable.

This closes TAC No,. M79166..Sincerely,

/s/Alexander W. Dromerick, Sr. Project Manager Project Directorate I-.4 Division of Reactor Projects -I/I1 Office of Nuclear Reactor Regulation cc

See next page Distribution:-Docket File.NRC & Local PDRs PD 1-4 Plant SVarga JCalvo.SNorrts ADromerick OGC GBagchi RHermann ACRS .(10),RBlough, RI OFFICIAL RECORD COPY A Document Name: M79166.INF OF* :LA:PDI-4

PM:PDI- :BC:EMCB .PU.1P-P4.

NAMEt :Sf' ~ek rrrn~J szI9 DATE/ :6/ 1 /92 :6// "

6N