ML20206E207

Informs That Contaminated Water Collected in Containment Vessel Sump Due to Condensation in Breather Pipe When Changes in Atmospheric Temp Occur.Presence of Water Poses No Threat to Environ or to Public Health and Safety

ML20206E207
Person / Time
Site:	Saxton File:GPU Nuclear icon.png
Issue date:	11/10/1988
From:	Heward R SAXTON NUCLEAR EXPERIMENTAL CORP.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
C301-88-2020, SNEC-88-0135, SNEC-88-135, NUDOCS 8811180008
Download: ML20206E207 (3)

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SAXTON NUCLEAR EXPERIMENTAL CORPORATION uE .

GENERAL P U B LIC UTILITIES SYSTEM P SNEC Jersey Central Power & Ught Company Pennsytvania Electnc Company PE JC Metteristan Edison Company MAluNG ADDRESS: TELEPHONE:

1 Upper Pond Road November 10, 1988 (201) 316-7000 Parsippany,,NJ 07054 C301-88-2020 SNEC-88-0135 U. S. Nuclear Regulatory Commission Attention: Document Control Desk llashington, D. C. 20555

Dear Sirs:

Saxton Nuclear Facility Operating License No. OPR-4 Docket No. 50-146 Contaminated Water From the Containment Vessel Sump On September 14, 1988, the third ouarterly inspection of 1988 was conducted at the Saxton Nuclear Experimental Corporation (SNEC) facility. During this inspection, water was noted to have collected in the Containment Vessel (CV) sump. Rad 101sotopic analysis of this water revealed it to contain radionuclide concentrations of Cs-137, and Sr-90 in excess of 10 CFR 20 Appendix 8. Table II, "Limits for Unrestricted Release", and is repo-table 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 ennsecuence of a breather pipe, installed during the initial decommissioning, which permits the CV to breathe when changes in atmospheric temperature occur.

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U. S. fluclear 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 control the internal atmosphere of the CV. This action is not oeemed 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, M'

R. W. Heward, Jr.

President RWH/JA:fg Enclosure cc: R. Conte, NRC W. Baunack, NRC T. Hurley, NRC C. Cowgill, flRC A. Adams. NRC W. Russell, NRC File: 2412.5.2 7693f/

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EXHIBIT 1 Results of SNEC C.V. Sump Water Third Quarter, 1988 10 CFR 20 Apo. B*

CV Water Table II, Col. 2 Limits Isotope Concentration (uCi/ml) (uC1/ml)

Cs-137

• 2.93E-3 + 2.9E-4 2E-5 (I)

• Sr-90 9.8E-6 + 2.nE-7 3E-7 (S) *

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

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