ML20151E214

Discusses Investigation of Water in Containment Vessel Sump Noted During Second Quarterly Insp on 880628.Radioisotopic Analysis of Subj Water Revealed Co-60,Cs-137,Cs-134 & Sr-90 Contamination.Analysis Results Encl

ML20151E214
Person / Time
Site:	Saxton File:GPU Nuclear icon.png
Issue date:	07/15/1988
From:	Heward R SAXTON NUCLEAR EXPERIMENTAL CORP.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
C301-88-2015, SNEC-88-0066, SNEC-88-66, NUDOCS 8807250413
Download: ML20151E214 (3)

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uE SAXTON NUCLEAR EXPERIMENTAL CORPORATION ya P SNEC GENERAL P U B LIC UTILITIES SYSTEM Jersey Central Power & Ught Company Pennsylvania Electric Company PE JC- Wropolitan Edison Cornrany MAILING ADORES 3:

TELEPHONE:

1 Upper Pond Road Parsippany, NJ 07054 (201) 316-7000 July 15, 1988 C301 -E8-2015 SilEC-88-0066 U. S. fluclear Regulatory Connission Attention: Document Control Desk Washington, D. C. 20555

Dear Sirs:

Saxton iluclear Facility Operating License No. DPR-4 Docket No. 50-146 Contaninated Water From the Containment Vessel Sump .

On June 28, 1988, the second quarterly inspection of 1988 was conducted at the Saxton fluclear Experimental Corporation (SNEC) f acility. During this inspection, water was noted to have collected in the Containment Vessel (CV) sump. Radioisotopic analysis of tt.is water revealed it to contain radionuclide concentrations of Co-60, 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 resuits 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 deconnissioning, which permits the CV to breathe when changes in atmospheric temperature occur.

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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-control 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/JA:fg

' Enclosure cc: R. Conte,-NRC W. Baunack, NRC T. 11urley, NRC C. Cowgill, NRC A. Adams, NRC W. Russell, NRC File: 2412.5.2

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S-EXHIBIT 1

.Results~of SNEC C.V. Sump Water s

Second Quarter, 1988 10 CFR 20 App'. B*.

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

Co-60 6.3E-5-1 2.2E-6 3E-5 (I)

• Cs-134 1.1 E-5 1 1. 5 E-6 9E-6 (S)

• Cs-137- 4.3E-3 1 1.5E-5 2E-5 (I)

• Sr-90 7.7E-6 i 1.0E 3E-7 (S) *

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

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