ML20095J559

Annual Environ Operating Rept,Per Environ Protection Plan of App B to TSs

ML20095J559
Person / Time
Site:	Mcguire, McGuire
Issue date:	12/31/1991
From:	Mcmeekin T DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9205040065
Download: ML20095J559 (5)

Text

. .- .

' ' * , Duke Ibegr Company T C alsbilulN McGuire Nuclear Generatsoa Department Vice Presider.!

(??JO Ragets Ferry N'>ad (4!Gul?J (?N) sis-400

. Hwatersville. NC 28078-6985 (IM)875 4809 fu

$ DUKE POWER April 24,1992 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washiraton, DC 20555 Subject. McGuire Nucleur btation

, Docket Nos. 50-369 and 50-370 Annual Environmental Operating Report Reference Appendix B Gentlemen:

i Attached is the subject report which is reqtrird by the Envi onmental Protection Plan, Appendix B to the McGuire Technical Specifications.

For questions concerning this report, pl' ease contact Kathleen Mullen at (704', 875-4302.

Very truly yours,

/

T. O. McMeekin, Vice President McGuire Nuclear Site Attachment cc: (With Attachment)

Mr. T. A. Reed, ONRR Washington, D. C. 20555 1

Mr. S. D. Ebneter Region ll Atlanta, Georgia 30323.

Mr. P. K. VanDoorni Senior Resident inspector McGuire Nuclear Station 3, . g ,,, r g5040065djid35 '

R ADOCK 05000369 PDR f/M

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xc: (With Attachment)

File: MC-801.01 (Helen Froe's u WC26A)

File: MNS Master File 1.3.8.1 D.W. Phillips (MNS/SA)

J.S. Carter (WC26) - -

(Without Attachment)

R.L. Gill, Jr. (WC26A)

R.O. Sharpe (MNS)

G.D. Gilbert File: MC-801.01/MNS 6

KPM/ EPA d

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i a ANNUAL ENVIRONMENTAL OPERATING REPORT FOR McGUIRE NUCLEAR STATION PER THE ENVIRONMENTAL PROTECTION PLAN (EPP) OF APPENDIX B TO McGUIRE TECHNICAL SPECIFICATIONS '

Item 1 EPP Section 5.4.1 Summaries and analyses of results of activities required by Section '

4.2 of the EPP.

No evidence of trends of irreversible damage to the environment is apparent. A Summary Report of the 1991 Lake Noi' man Maintenance Monitoring program required by McGuire Nuclear Station NPDES Permit NO. NC0024392 is being prepared and will be forwarded to the North g-Carolina Department of Environment, Health, and Natural Resources 1 and to the NRC. -

Item 2 EPP Section 5.4.l(a)

(

e-EPP Non-Compliance and Correcti~= Actions A minor fish kill that occurred in the Standby Nuclear Service f Water Pond in October 1991 was reported to the NRC, but no written _

report was forwarded within 30 days.

Corrective Action A written report is attached and appropriate individuals were informed of this requirement.

Item 3 EPP Section 5.4.1(b)

Changes in station design or operation; tests and experience which involve, a potentially significant unreviewed environmental issue.

No changes were identified that involved a potentially significant unreviewed question.

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Item 4 EPP Section 5.4.1(c)

Non-routine reports submitted in accordance with Section 5.4.2 of the EPP.

1. A monthly NPDES discharge monitoring report, describing a nonroutine event (visible foam observed at the discharge of outfall 005), was submitted to the North Carolina Divisjon of Environmental Management and to the NRC on March 27, 1991.

2. A monthly NPDES discharge monitoring report, describing a nonroutine event (fecal coliform density exceeded 400/100 ml at McGuire Nuclear Station Out f all 003), was submitted to the North Carolina Division of Environmental Management and to the NRC on August 21, 1991.

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MINOR FISH KILL IN STAND 3Y NUCLEAR SERVICE WATER POND OF McGUIRE NUCLEAR STATION Approximately 200 warmwater fish species were observed dead in the Standby Nuclear Service Water Pond (SNSWP) of McGuire Nuclear j Station (MNS) and reported to the NRC on October 18, 1991. This event was associated with the required pumping of low level intake water that had a dissolved oxygen concentration of essentially zero. This alignment to the low level intake was necessary whilo maintenance work was conductea in the condenser water box of one of the two units of McGuire. The volume of water pumpud to the SNSWP consisted of approximately 8,000 gpm of low level intake water and 2,000 gpm of water leaking by isolation valves of-the condenser cnoling water system. The on-going environmental maintenance monitoring shows that oxygen concentrations near zero in the low -

level intake water are typical during October. Further monitoring in the SNSWP found that dissolved oxygen concentrations from 0.3 m below'the surface and at 1 m intervals from surface to bottom of the SNSWP ranged from near 0.7 mg/l at the bottom to 2.1 mg/l at the eurface. Although this alignment was maintained for several days, dead fish were only observcd on initiation of thi's alignment.

Monitoring of fish populations was also conducted in the SNSWP using electrofishing equipment. Typical-warmwater fish species were abundant and appeared healthy. Apparently the pumping of this water with a low oxygen concentration resulted in th - mortality of a small percentage of the fish populations in the SNSWP. A reproducing warmwater fish community remains in the SNSWP.

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