ML20024G450
| ML20024G450 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 09/13/1972 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Wachter L NORTHERN STATES POWER CO. |
| Shared Package | |
| ML20024G451 | List: |
| References | |
| NUDOCS 9102120492 | |
| Download: ML20024G450 (2) | |
Text
- -. - _ _.
._ __ _ ~ FN 10 /
Lbo w
,,r e u r e,,,
"'g UNITED OTATES 3
.' (
i ATOMIC ENERGY COMMISSION i
g'<, y j p OIRECTORATc OF REGULt. TORY OPERATIONS REGION lil p
- '8 4 : 6 799 ROOScVrtr ROAD
, g a pag GLEN ELLYN. ILLINOls 6o137 (lit)656 2660 September 13, 1H2 Northern States. Power Company Docket No. 50-263 ATTH: Hr. Leo Wachter, Vice President Power Production 419 Nicollet Avenuo Minneapolis, Minnesota 53401 Ocntlercn Thank you for your lettor of August 8,1972, in reoponso to our letter dated June 29, 1972, luforY:.ing un of }our plans to assure that valves it portant to nucicar safety do not have wall thicknenoes below the tainimum requirmento opecified by the applicable codes, standards, and procurencnt crecifications.
The planw outlined in your letter, which you state are contint.cnt upon invcotication and dcycloponut of certafn connurer.cnt prograrn factore, appear to'be renponnive to our concerno.
k'o understand that you vill crepicto the inventipation and development activities identified in your August C, 1972, letter and inforta us of a dotailed valve wall thichness verification progra:a within 90 days, i.e., on, or before, 1:ovenber 8, 1972. On the baats of this titte schedule, and the contents of youc /urust 8,1972, Lottor, wo havo no further questions at thin tico. Uith recpoct to developracnt of your valve wall thichucos veri-fication program, it should be understood that forged valves nood not bo included in the progrn provided that:
(1) doeur.cntation is avnil-able at the site to confirm that valve dimensions were checked after
\\
9102120492 720913 iM I
\\
gE PDR ADOCK 05000263 O
.n.v,
2-September 13, 1972 Northern Statos Power Conpany final nachining of tv.chinto areas, and/or (2) valve drawings are availsblo at the site to duaonstrate that any intorual ranchining operation could not have encroached upon the. nininuin wall thicknote of the pressure-retaining boundary of the valvo body.
Tour cooparation.vith us is appreciated.
Sincerely yours, Boyce 'll. Crict Regional Director bec w/1tr dtd 8/8/72:
J. G. Keppler, RO R.11. Engelkeh, R0
- 11. D. Thornburg, RO P. A. Morris, RO A. Giambusso, L R0 Files DR Central Files PDR Local PDR NSIC DTIE t
_ _ _ _ _ _ _ _ _ _...