ML20236N411

Ro:On 870915,during Third Quarterly Insp of 1987,collection of Water in Containment Vessel Sump Noted.Caused by Condensation from Inside Containment Vessel.Periodic Monitoring,Removal & Disposal of Water Planned

ML20236N411
Person / Time
Site:	Saxton File:GPU Nuclear icon.png
Issue date:	11/06/1987
From:	Heward R SAXTON NUCLEAR EXPERIMENTAL CORP.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
5201-87-2011, SNEC-87-0103, SNEC-87-103, NUDOCS 8711160150
Download: ML20236N411 (3)

Text

,. . _

ME SAXTON NUCLEAR EXPERIMENTAL ~ CORPORATION .

GENERAL P U B LIC UTILITIES S Y S T E M  !

Jersey Central Power & Ught Company Pennsylvania Electnc Company Metropolitan Edison Company

' PE JC I

TELEPHONE:

MAILING ADoRESS:

(201) 316-7000 j

-1 Upper Pond Rd.. _

Parsippany, NJ 07054 l

November 6, 1987 I SNEC-87-0103  !

5201-87-2011 f i

U.S. Nuclear Regulatory Commission  ;

Attention: Document Control Desk Washington, D.C. 20555

Dear' Sirs:

j Saxton Nuclear Facility Operating License No. DPR-4 i Docket No. 50-146 l' Contaminated Water From the Containment Vessel Sump

~

.On September 15, 1987, the third quarterly inspection of 1987 was conducted at the Saxton Nuclear Experimental Corporation (SNEC) f acility. During this  !

inspection, water was noted-to have collected in the containment vessel sump.  !

Radioisotopic analysis of this water revealed it to contain radionuclides :j 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 Specificat ions. The analysis results are presented in Exhibit 1, att ached. The presence of this water poses no threat to the environment or to the public health and safety, since there are l 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  ;

condensation is a consequence of a breather pipe installed during

-decommissioning, which permits the CV to breathe when changes in atmospheric temperature occur. l 8711160150 871106 PDR ADOCK 0S000146 pb% j o

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-It '.is- apparent that. tNe 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, d

- remove, and take.the appropriate ~ steps'to secure.andidispose of this water.

1 Sincerely, M(h k .

R. W. Heward, Jr.

President RWH'/ch:0224S

. Attachment  ;

cc:. W. Baunack, NRC C. Cowgill,-NRC

'H. Berkow, NRC.

.T.-Murley, NRC A. Adams, NRC '

R. Conte, NRC

.W. Russell, NRC

' File: 2412.5.2 r .-

l a

! l EXHIBIT 1  ;

Results of SNEC C.V. Sump Water Third Quarter 1987 10 CFR 20 App. B*

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

Co 3.5E-5 j; 2.2E-6 3.0E-5 (I)

• Cs -134 1. l E-5 j; 1. 5E-6 9.0E-6 (S) * '

Cs-137 3.6E-3 j; 1.8E-5 2.0E-5 (I)

• Sr-90 3.2E-S j; 3.2E-5 3.0E-7 (S)

• 4

• Values listed are the more restrictive between soluble (S) and insoluble (1).

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