ML19317G968

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Responds to NRC w/1976 Effluent Release Info. Submits Corrections to NRC Info.Util Review Based on Facility Annual Operating Rept,Mar 1977
ML19317G968
Person / Time
Site: Rancho Seco
Issue date: 09/12/1977
From: Mattimoe J
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
NRC OFFICE OF MANAGEMENT AND PROGRAM ANALYSIS (MPA)
References
NUDOCS 8004020628
Download: ML19317G968 (3)


Text

D.

(ION FOR_ ANNUAL C SEMI ANNUAL OPERATING REPORTS (OL STAGE)

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u.s. NUCLsAQ f.EEUI.ATCMY CoMF JioN DO NUM

-, NRC DISTRIBUTION PoM PART 50 DOCKET MATERIAL b-FROM:

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NRC Sacre-nento Municipal Utility Dist.

9-12-77 i

Sacramento, Calif i

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LarTER ONoroRizEo Prop INPUT PoRM NUMBEM oP COPIES RECEIVED no?.134NAl.

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/ 3,9aggg OcMikTioN ENCLoSU RE Re NRC ltr dtd 8-26-77.... furnishing corrections to licensee's rpt entitled

" Radioactive 11 terials Reler se '.from Nuclear Generating Station, Unit #1"

'1976................

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LANT NAME:

Rancho Seco 9-20-77

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SAFFTY FOR A; TION /INFORMATION l PROJECT MANAGER:

EPif E Ank) Ed L.3 1AAI l LIC. ASST.

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' SACRAMENTO MUNICIPAL UTILITY DISTRICT C 6201 s street, Box 15830, sacramento, Califomia 95813; (916) 452-3211 September 12, 1977 U. S. Nuclear Regulatory Commission Office of Management Information

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and Program Control

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Operating Data Branch,12105 MNBB

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--a Washington, D. C.

20555 g ' LZl-/ g 77 q Docket No. 50-312 N ""c2UM" 5 Rancho Seco Nuclear Generating 9

.C; Station, Unit No. 1 Y.,

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Gentiemen:

Nb In response to Mr. R. W. Reid's letter of August 26,1977, the District has reviewed the 1976 radioactive effluent release infonnation proposed for your " Radioactive Materials Released from Nuclear Power Plants (1976)" report concerning the Rancho Seco Nuclear Generating Station, Unit No. 1.

Our review indicates the following errors:

1.

Under Airborne Effluents (Curies), Particulates, Cobalt-58, the value shown (2.63E-05) should be corrected to read 4.08E-05. A possible explanation for this error is that the total for the second quarter continuous plus batch mode releases sum up to equal the difference between the above two numbers.

2.

Under Summary of Effluents, Airborne, Item D, Total Particulates, the total of 3.81E-05 reflects the error in Item 1 above. The correct value is 5.26E-05.

3.

Under Summary of Effluents, Solid Waste, all three numbers reported appear to be in error.

The correct values are:

A) Vcl ume 1.llE+02 Cubic Meters B) Activity 2.80E+01 Curies C) Number of Shipments 6.00E+00 Since there was no relationship to the values reported in Mr. Reid's letter versus the numbers and types of shipments described in the annual report, no conclusions could be drawn as to the source of the errors in the reported values.

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With thase three ex ytions, the remaining values are correct as reported. The Raacho Seco Nuc';ar Generating Station, Unit No.1, Annual Operating Report dated March 1977 is the basis for this review.

If you have L.. questions regarding these comments, please feel free to contact Don Martin of our staff.

Sincerely yours, J. J. Mattimoe Assistant General Manager and Chief Engineer l

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