ML20151C601

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Ro:On 880303,during First Quarterly Insp of 1988,water Noted to Have Collected in Containment Vessel Sump.Radioisotopic Analysis of Water Revealed That Contamination Exceeded 10CFR20 Limits for Unrestricted Release
ML20151C601
Person / Time
Site: Saxton File:GPU Nuclear icon.png
Issue date: 04/05/1988
From: Heward R
SAXTON NUCLEAR EXPERIMENTAL CORP.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
C302-88-2006, SNEC-88-0025, SNEC-88-25, NUDOCS 8804130084
Download: ML20151C601 (3)


Text

SAXTON NUCLEAR EXPERIMENTAL CORPORATION o

ME GENERAL P U B LIC UTILITIES SYSTEM P sNEC Jersey Central Power & bgnt Cornpany 7

Penneytvania Electnc Cornpany l

PE g

Metropowtan E@ son Cornpany MAIUNG AoCREss:

TELEPHONE.

1 Upper Pond Rd.

(201) 316-7000 Parsippany, NJ 07054 April 5, 1988 SNEC-C8 S025 C301 2006 U.S. Nuclear Regulatory Commission Attention : Document Control Desk Washington, D.C. 20555

Dear Sirs:

Saxton Nuclear Facility Operating License No. DPR-4 Docket No. 50-146 Contaminated Water From the Containment Yessel Sump 1

On March 3,1988, the first quarterly inspection of 1988 was conducted at the Saxton Nuclear Experimental Corporation (SNEC) facility.

During this inspection, water was noted to have collected in t'ie containment vessel sump.

Radioisotopic analysis of this 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.a3 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 containment vessel 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 I

condensation is a consequence of a breather pipe installed during decomissioning, which permits the CV to breathe when changes in atmospheric l

temperature occur.

g413oog4000405 g

ADOCK 0500o146 PDR l

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It is apparent that the influx of water to the sep cannot be readily tenninated without installation of a system to control the internal atmosphere 1

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, I

remove, and take the appropriate steps to secure and dispose of this water.

i Sincerely, l

7k/3Ife4R. W. Heward, Jr.6 President i

RWH/fg i

Attachment Cc:

W. Saunack,llRC, C. Cowgill, NRC A. Adams, NRC l

R. Conte, NRC W. Russell, NRC File : 2412.5.2 I

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EXHIBIT 1 Results of SNEC C.V. Sump Water First Quarter 1988 10 CFR 20 App. B*

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

(uC1/ml)

Co-60 5.6E-6 + 2.8E-6 3.0E-5 (I)

  • Cs-134
1. 2E-5 + 1.7 E-6 9.0E-6 (S)
  • Cs-137 4.4E-3 + 2.0E-5 2.0E-5 (I)
  • Sr-90 1.1 E-4 + 5.7E-5 3.0E-7 (S) *
  • Values listed are the more restrictive between soluble (S) and insoluble (!).

1

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l 1

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