ML20211C830

Monthly Operating Rept for Sept 1986

ML20211C830
Person / Time
Site:	Fort Saint Vrain
Issue date:	09/30/1986
From:	Gahm J, Novachek F PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
P-860582, NUDOCS 8610220033
Download: ML20211C830 (8)

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PUBLIC SERVICE COMPANY OF COLORADO FORT ST. VRAIN NUCLEAR GENERATING STATION MONTHLY OPERATIONS REPORT NO. 152 September, 1986 8610220033 860930 PDR R

ADOCK 05000267

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This report contains the highlights of the Fort St. Vrain, Unit No. 1, activities operated under the provisions of the Nuclear Regulatory Commission Operating License DPR-34. This report is for the month of September 1986.

1.0 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE AND MAJOR SAFETY RELATED MAINTENANCE The reactor remained shutdown during the entire month of September for Environmental Qualification modifications.

During the month of September, a reanalysis of FSAR Sections 10.3.9 and 14.4.2.2, Firewater Cooldown Following a Design Basis Earthquake, determined that insufficient firewater flow would be available to the Evaporator Economizer Superheater (EES) sections of the steam generators to maintain reactor temperatures below those shown in FSAR Figures 14.4-6 through 14.4-8. A Four Hour Non-Emergency Event Report was made to the Nuclear Regulatory Commission on September 17, 1986. This condition will be investigated and reported to the Nuclear Regulatory Commission in Licensee Event Report #86-026.

On September 21, 1986, a reactor building sump release was performed without being continuously sampled. This is a condition prohibited by Technical Specifications and will be investigated and' reported to the Nuclear Regulatory Commission in Licensee Event Report #86-027.

2.0 SINGLE RELEASES OF RADI0 ACTIVITY OR RADIATION EXPOSURE IN EXCESS OF 10% OF THE ALLOWABLE ANNUAL VALU_E None 3.0 INDICATION OF FAILED FUEL RESULTING FROM IRRADIATED FUEL EXAMINATIONS None 4.0 MONTHLY OPERATING DATA REPORT Attached

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v :rnost (303) 620-1007 ermn:c s A:.s xcus

1. uni: s : Fort St. Vrain, No. 1

2. say :uas P.:1.e: 860901 throu9h 860930 ,

s. ucer .e n.:nal rev.: (w:): 842 4 Nan. plat. Rating (crces m.): 342

5. :4 sis nee::ical h: ins (see s.): 330

6. Maximat Dep.ndahl. capacity (cro.s W.): 342

7. Maximm :.p.sd.hl. capacity (Net s.): 330

8. :f Caanges 0. cur in cap. city Ratings (It.as Nu=ber 3 nr ugh 7) sine. 2.ast Report, civ. R a..ns:

None.

9. Power : v.1 To W.1:h 1.s::1ct.d. If Any (" : W.) : 0.0

o. namens for us::te am, ze any: Per commitment to the Nuclear Reaulatory Cnemissinn.

remain shutdown pending completion of Environmental Qualification. modifications.

This Month Year t Dat. Cummalative n . nears in m.per:ing r.ri.4 720 6,551 63,576.0 1:. sunn.: . news nuew: x. c 1:1e.1 0.0 2,456.6 30,537.8

s. muetar nu rv. sh=:4.vn n cre 0.0 0.0 0.0 0.0 1,087.1  : 19.555.1 24 nours cen nar on-um.

is. rete nu.rv. sha:4.vu nour 0.0 0.0 0.0 t is, crou n rna: t=.rgy c. . rat.e (su) 0.0 370,316.6 10.265.399.8

17. crus n.c::ieal ra.:gr c.c.ra:.a (s u) 0.0 85,402.0 3.333.996.0 la. s.: n.:::ica: In :re cen. st.d (s u) -1,903.0 57,023.0 2.953.296.0

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0.0 16.6 30.8

20. tr.1: Avanabni:7 r.c== 0.0 16.6 30.8 t

I n. cnit cap.ct:7 r eur (tsins cc s.:) 0.0 2.6 14.1

22. Unit Cap. city ractor (Using DER Net) 0.0 2.6 14.1

3. m it rere.d outas. anc. 100.0 83.4 60.9

. shetowns sch.eu:.4 ov.: s.x: 6 machs crfp., nas., and 3ura:1.e of zach) . Environmental Qualification modifications, 861001, 2209 hours0.0256 days <br />0.614 hours <br />0.00365 weeks <br />8.405245e-4 months <br />.

3. :r rhu: oce. .: Ine :: a.per: portoe. rs::=,:ee a:. or s ur:u,: December 31. 1986

26. Units :n 7.st S:stus (Prior te co-=:>.r:ial Op. ration): Ter cas: Achieved

nA:. cnncA:.:n N/A N/A l :sznA:. racn:c:n N/A N/A cc.uxc:x. crmnex N/A N/A ,

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. AVERAGE DAILY UNIT POWER LEVEL  ;

Docket No. 50-267 Unit Fort St. Vrain Unit No. 1 Date October 10, 1986 Completed By F. J. Novachek Telephone (303) 620-1007 Month September DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 0.0 17 0.0 2 0.0 18 0.0 3 0.0 19 0.0 '

4 0.0 20 0.0 5 0.0 21 0.0 6 0.0 22 0.0 7' O.0 23 0.0 8 0.0 24 0.0 9 0.0 25 0.0 10 0.0 26 0.0 11- 0.0 27 0.0 12 0.0 28 0.0 13 0.0 29 0.0 14 0.0 30 0.0 15 0.0 31 N/A 16 0.0 l

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REFUELING INFORMATION 1

1 I l l~1. Name of Facility l Fort St. Vrain Unit No. 1 l l l 1 l 2. Scheduled date for next l l l refueling shutdown. I March 1, 1988 l l l l l 3. Scheduled date for restart l June 1, 1988 l

l following refueling. l l l l l l 4. Will refueling or resumption ofl No l l operation thereafter require a l l l technical specification change-l l l or other license amendment? l l I l l l If answer is yes, what, in l ---------------- l l general, will these be? l l l l l l If answer is no, has the reload l l l fuel design and core configura-l l l tion been reviewed by your- l l l Plant Safety Review Committee l No l l to determine whether any unre- l l l viewed safety questions are l l l associated with the core reload l l l' (Reference 10 CFR Section 50.59)?

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, l If no such review has taken l 1986 l l place, when is it scheduled? I l

, l l l l 5. ~ Scheduled date(s) for submit- l l l ting proposed licensing action l ---------------- l l and supporting information. l l l l l l 6. Important licensing considera- l l l tions associated with refuel- l l l ing, e.g., new or different l l l- fuel design or supplier, unre- l ---------------- l l viewed design or performance l l l analysis methods, significant l l l changes in fuel design, new l l l operating procedures. l l l l l l 7. The number of fuel assemblies l l l

l (a) in the core and (b) in the l a) 1482 HTGR fuel elements l l spent fuel storage pool. I b) 0 spent fuel elements l l

REFUELING INFORMATION (CONTINUED) 1 I l l 8. The present licensed spent fuell l l pool storage capacity and the l l l , size of any increase in l Capacity is limited in size to l l licensed storage capacity that l about one-third of core l l has been requested or is l (approximately 500 HTGR elements).l l planned, in number of fuel l No change is planned. l 1 assemblies. l l 1 I I l 9. The projected date of the last l 1992 under Agreements AT(04-3)-633l l refueling that can be dis- l and DE-SC07-79ID01370 between l l charged to the spent fuel pool l Public Service Company of l l assuming the present licensed l Colorado, and General Atomic l l capacity. I Company, and DOE.* l

• The 1992 estimated date is based on the understanding that spent fuel discharged during the term of the Agreements will be stored by DOE at the Idaho Chemical Processing Plant. The storage capacity has evidently been sized to accommodate eight . fuel sefdedts.J It is estimated that the eighth fuel segment will be discharged in 1992.

Public Service ~ . . . , .

Company of Colorado 16805 WCR 19 1/2, Platteville, Colorado 80651 October 15, 1986 Fort St. Vrain Unit No. 1 P-86582 Office of Inspection and Enforcement ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Docket No. 50-267

SUBJECT:

Monthly Operations Report For September, 1986

REFERENCE:

Facility Operating License No. DPR-34

Dear Sir:

Enclosed, please find the Monthly Operations Report for the month of September, 1986.

If you have any questions, please contact Mr. M. H. Holmes at (303) 480-6960.

Sincerely, J. G Manager, Nuclear Production Fort St. Vrain Nuclear Generating Station Enclosure cc: Mr. R. D. Martin, Regional Administrator, Region IV' JWG:djm

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