NRC-89-0042, Ro:On 890316,water Containing Radionuclide Concentrations in Excess of 10CFR20 Limits,Collected in Containment Vessel Sump.Water Originated from Condensation on Inside of Containment Vessel.Water Will Be Properly Disposed of

Ro:On 890316,water Containing Radionuclide Concentrations in Excess of 10CFR20 Limits,Collected in Containment Vessel Sump.Water Originated from Condensation on Inside of Containment Vessel.Water Will Be Properly Disposed of

ML20247D938
Person / Time
Site:	Saxton File:GPU Nuclear icon.png
Issue date:	05/16/1989
From:	Heward R SAXTON NUCLEAR EXPERIMENTAL CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
C301-89-2007, SNRC-89-0042, SNRC-89-42, NUDOCS 8905260066
Download: ML20247D938 (3)

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SAXTON NUCLEAR EXPERIMENTAL CORPORATION i

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GENERAL P U B LIC UTILITIES SYSTEM l

o P SNEC Jersey Central Power & Light Company.

'j Pennsylvania Electric Company PE JC.

Metropolitan Edison Company b

MAILING ADDRESS:

TELEPHONE:

1 Upper P0nd Road (201) 316-7000 Parsippany, NJ 07054 May 16, 1989 C301-89-2007 SNEC-89-0042 U. S. Nuclear Regulatory' Commission Attention: Document Control Desk Washington, D. C.

20555 Dear Sirst Saxton Nuclear Facility Operating License No. DPR-4 Docket No. 50-146 Contaminated Water From the Containment Vessel Sump on March 16, 1989, the first quarterly inspection of 1989 was conducted at the

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, Saxton Nuclear Experimental Corporation (SNEC) facility. During this inspection, water was noted to have collected in the Containment Vessel (CV) sump. Radioisotopic analysis of this water revealed it to contain radionuclides concentrations of Cs 137, Cs-134 and Sr-90 in excess of 10 CFR 20 Appendix B, Table II, " Limits for Unrestricted Release", and is reportable under Section 5.a.3 of the SNEC Technical Specifications. The analysis results are presented in Exhibit 1,' attached. The presence of this water poses no threat to the environment or to the public health and safety since there are no release paths from the CV sump to the environment. When appropriate, the water will be properly disposed of as it has been in the past.

The water originates from condensation on the inside of the CV.

The condensation is a consequence of a breather pipe, installed during the initial decommissioning, which permits the CV to breathe when changes in atmospheric temperature occur.

8905260066 890516 l

PDR ADOCK 05000146

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U.S. Nuclear Regulatory Commission.

Page 2 It is apparent that the influx of water to the sump cannot be readily-

. terminated without installation of a system to contrtl the internal atmosphere

.of the CV.

This action is not deemed necessary since the water.has no pathway to the external environment. We will continue to periodically monitor, remove and take'the appropriate steps to secure and dispose of this water.

sincerely, R. W. Heward, Jr.

President RWH/JAtlml Enclosure R. Bellamy, NRC-C. Cowgill,'NRC A. Adams, NRC W.

Russell, NRC TMI-l NRC Senior Resident Inspector l-I

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SNEC89-0037 J

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l EXHIBIT 1 Results of SNEC C.V.

Sumn Water-j:,

First Ouarter, 1989

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.10 CFR 20 App. B*

CV Water Table II, Col. 2 Limits -

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' Concentration fuCi/ml) fuci/ml)~

.Cs-134 5.51E-611.1E-6 9E-6 (S)

Cs-137 2.84E-312.8E-4 2E-5 (I)

Sr-90; 8.1E-612E-7' 3E-7.(S)

• Values listed are the more restrictive between soluble (S) and insoluble-(I).

SNEC89-0037

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