ML20081E891

RO 2-SR-83-26:on 830930,gamma Analysis of Bottom Sediment Sample Collected 830908 Revealed Co-60 Concentration in Excess of Tech Specs.No Radiation Hazard Exists.Sampling Frequency Will Be Increased from Semiannually to Monthly

ML20081E891
Person / Time
Site:	Brunswick
Issue date:	10/26/1983
From:	Dietz C CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
BSEP-83-3443, RO-2-SR-83-26, NUDOCS 8311020279
Download: ML20081E891 (2)

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Cp&L Carolina Power & Light Company

' 83 0eraf , O Brunswick Steam Electric Plant

,]Css P. O. Box 10429 Southport, NC 28461-0429 October 26, 1983 FILE: B09-13510C SERIAL: BSEP/83-3443 Mr. James P. O'Reilly, Administrator U. S. Nuclear Regulatory Commission Region II, Suite 3100

> 101 Matictta Street N.'el.

Atlanta, GA 30303 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NOS. 1 AND 2 DOCKET NOS. 50-325 AND 50-324 LICENSE NOS. DPR-71 AND DPR-62 30-DAY NONROUTINE RADIOLOGICAL ENVIRONMENTAL EVENT REPORT (2-SR-83-26)

Dear Mr. O'Reilly:

Results c. a gamma analysis of a bottom sediment sample collected September 8, 1983, as part of Brunswick Steam Electric Plant's Environmental Radiological Monitoring program, detected Co-60 at a concentration of 1.19 0.05 pCi/g at sample station No. 33. The analysis of this sample was completed on September 30, 1983. The MDA value for this station is 0.05 pC1/g. The Co-60 activity found in this sample constitutes a 30-day reportable event in accor-dance with Technical Specifications, Appendix B, Section 5.4.2b, pertinent to environmental sampling.

This bottom sediment sample was collected as part of an expanded surveillance program on bottom sediments in the discharge canal. The current sample results indicate a decreasing Co-60 activity at this sample station. The Co-60 activity found in this sample is reportable due to a factor of ten increase above the MDA. There is no radiation hazard or exposure to the public due to this activity. There was no Co-60 found in surface water sampics taken from the intake and discharge canals or from the ocean during September 1983.

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1 Mr. J. P. O'Reilly The sampling frequency for bottom sediment samples has been increased from semiannually to monthly in order to more closely monitor the Co-60 activity

-and to determine if trends in the activity levels can be predicted.

Very truly you s, C. R. Dietz, General Manager Brunswick Steam Electric Plant AHC/c1h/ LETCH 1 Enclosure cc: Mr. R. C. DeYoung NRC Document Control Desk i

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