ML18139A056
| ML18139A056 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 03/18/1980 |
| From: | Ferguson J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-79-14, NUDOCS 8003210466 | |
| Download: ML18139A056 (2) | |
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VIRGINIA ELECTRIC.A.ND POWER COMPANY RIOHMOlS"D, VIRGINIA 23261 Mr. James P. 0 1R~illy, Director Offic,= of Insoection & Enforcf.::j'Jent U. S. Nuclear* Regulatory Commission Harch 18", 1980 Serial No. 195 PSE&:C/CMRjr:mac: wang
_ Region II Docket No. 50~280 License No. DPR-32 101 Marietta Street, Suite 3100 Atlanta~ GA_ 30$63 D~ar Mr. 0 1Rei11y:
- REQUEST FOR ANALYSIS EXTENSION FOR I.E. BULLETIN 79-1~
SU[IBl__POWER ST.t\\TION ---m:nr 1 We wish to inform you that substantial progress :has been marle* to comply with *the provisions of I.E. Bµll~tin 79-14 as set forth in the time table in our letter of October 4-, 1979 {Vepco Serial No. 817).
An r:~xpedited schedule has*bcen used to the maximum possible extent*com:nensurate 1vith Hiorough 2.nd accurate procedures to establish the validity of all calculations.
We must.inform_you that total completion of I.E. Bu1letin 19-14 analyses is not possibl~ in the _f1~e month period st~ted* 1~ nur Octob~r 4, 1979 letter~
Based upon our progress ~o date, we believe an extension to th~ end
.of May is necessary to substantially.complete the arialys-Js.
We believe 'It is imperative to continue, in a tir,1e1y manner, our 8Stc'.bl1sh~d progra'il of quality c~lculations to assure the highest confidence level in the Surry piping sy"sterns.
Under these circumsta.nces, we feel that an extension to May is justified anct consistent with your concern for an expedited, yet thorough,.-
review of I.E.Bulletin 79-14 piping systems.
By the end of May, analyses will be completed to the extent that all ~edifications will be identified sufficiently to allow field work to proceed *. Final checking, verification,_
documentation, Engineering As5urance signoff. and related activities will continue after the end of Mny.
In addition, ihere ar~ tw6 long t~r~ ii~~s *which will require arralysis be_yond the end of May to fully complete the final I.E.Bulletin 79-14 analysis. Both items involve the service water system outside the containment and were not for~seen_ at the time of the origina*1 _ commitment to a* five month ana1ys*1 s *period. * *
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Mr. James P. O'Rei11y, Director The first *ite.m concerns thi2 s~rvice Vii.l.ter system consisting of C1ass 136 (reinforced fiberg1ass) piping supplying the three control room air condit-!oning chi 112rs.* To enh21nce ma i ntainab11 Hy~ we are c:un-ent1,y des*I gning a more efficient routing of the system.
A *comnlete pip*lng system changeover
_rli1i not he operat*lonal until after mid-summer.
The final I.E. Bul1et1n 79-14 analysis, therefore, cannot take place until.this piping work has been c0i11pl eted.
The ~econd item concerns other portions of the service water piping consisting ~f Class 136 piping. It is ouF Intent to upgrade this piping as much as practicable to the best available technology through the use of*
- Regulatory Guic!e 1. 72, "Spray Pond Piping Made From Fi.berglass-Reinforced Thermos~tting Resin, 0.and ASME Sectiati III, Code Case N-155-2~. "Fiberglass Reinforced Thermal Setting Resin Pipe 11 as *guid~11n$s., These do~uments r1P.re not tn ex i stenc1-= ll!hen the or i g1 na 1 ana.1 ys is was performed, and the:"'! ir use "represents ~ definite u*ngr~de of the. system to further enhance the analytical acceptab111{y of the Class 136 piping at Surr~.
T~e final I.E. Bulletin 79~14 analysis, therefore, cannot tt'\\ke plact? *unti1 this* work.has bel.:'n completed.
As you a.re aw~re, W(~ have* been in regl!1,w cormitm*lcation with your staff s.incG October in order to keep you fully:apprised of our efforts. - We intend*
to cont1nu~ this practice;
- We believe our request for an extension of time to the end of May for the comp1et1on of* aM1ysis. in the extent noted above is reasonab1e anct *.
justifil".b1e.
We 1*Jou1d appr~ciate a prompt rev*Jew* of Olll" request.
Very truly yours, Original signed by
-Jack H-. Ferguson.
..J. H, *F~rg11SO?'l Executive Vice President Power*
cc: Mr. Victor St~llo, Director Office of I~spection.~ Enforcement Mr. Har61d R. Dent~n~_Oirector,* *..
Office of Nuclea.r' Renctor Rr::gu1.aticn
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