ML20066J126

Submits Fourth Quarter 1990 Containment Vessel Sump Insp Results.Water Found in Containment Vessel Sump.Sample Taken for Radioisotopic Analysis.Results Listed

ML20066J126
Person / Time
Site:	Saxton File:GPU Nuclear icon.png
Issue date:	02/20/1991
From:	Hildebrand J GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
C301-91-0002, C301-91-2, SNEC-91-0006, SNEC-91-6, NUDOCS 9102250297
Download: ML20066J126 (3)

Text

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e' # SAXTON; N U CLEAR i EXP ERIM ENTAL' CO R PORATION -

G EN E R A L- P U B LIC UTILITIES SYSTEM p S'NEC

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Jersey Central Power & bght Company Pennsylvensa Electnc Company I'g , PE 4i "Ar p hten Edison Cornpany MAluNG ADDRES$$ TELEPHONEi 1 Upper Pond Rd.-. (201) 316-7000 Parsippany< NJ 07054 i

February 20, 1991 C301-91-0002 SNEC-91-0006 -c U.'S.LNuclear. Regulatory Commisolon Attentions -Document Control Desk Washington,^DC 20555c L

Dear %r:

4 Saxton Nuclear Facility Operating License No. DPR-4 Docket No. 50-146

-Fourth Quarter 1990. Containment Vessel Sump Resulte "

J

?On October 13, 1990,.the fourth quarterly inspection of the year was conducted-

.at the Saxton Nuclear' Experimental Corporation (SNEC) facility. During this 11'nspection.: water was found present'in the containment Vessel,(CV) sump and a

sample was -taken for raciloisotopic; analysis.

"The'resultsof the analysis were' received on February 14,.1991 and, indicated-  ;

p t Pthatpthe-activity-concentration of Sr,90;and Cs-137 exceeded.the " Limits'for #

cUnrestricted Release" identified"ini10 CFR 20,' Appendix B, Table II, Column"2,

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andLis' reportable.under Section'5.a.3 of the SNEC Technical-Specification (TS).

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"A Per;the TS,}the results-of the analy % or thu above: isotopes were vorbally-reported to Mr. .

R." Bores _(NRC Region.I) on(February 14,'1991.

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~The attached Exhibit.1 identifies.the reportable results.of the SNEC CV sump '

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. water analysis for the fourth quarter of 1990.,  ;

i n Itsshould be-noted that the Ti sump volume'is~325. gallons and was f11 led with y- approximately 125 gallous,of water.

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, 'EPsC3010002 -

9.102250297 910220 *1 tri!t PDR ADOCK 05000146 PDR h .R

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C301-91-0002 SNEC-91-0006:

• Pag'e ' 2 ,

The water in the cump originates from condensation on the inside of the CV, and is a consequence of a brsather pipe, installed during the initial decommissioning, which permits the CV to breathe with changes in atmospheric temperatures.. This water poses no threat to the environment or to the health ,

and safety of the public because there are no' release paths to the external )

evironment from the CV sump. When approprirte, the water will be properly i disposed of, as it has been in the pas'c.

We will continue to periodically monitor, remove and take the appropriate steps to secure-and dispose of this water.

This letMr consprises the required written report per the SNEC TS Section 5.a.

Sincerely,

. . . i a President JEH/EP/ pip Attachment

.ca A. Adams (NRC)

R. Bores (NRC)

T. Dragoun (NRC)

J. Roth-(NRC)

S. Weise (NRC),

(

.EP:C3010002

.+. .

EXHIBIT 1 RESULTS OF SNEC CV SUMP WATER 10URTH OUARTER, 1990 10 CFR 20, App. B Table II, col. 2 Limits Isotope oncentration (uC1/ml) gr g

.j co-137 2.24 1 0.22 E-3 2 E-5 (s)

Sr-90 7.10 1 0.1 E-6 3 E-7 (s)

• Values listed are the more restrictive between soluable (o) and insoluble (I).

D, 8 8:

g, Ee:C3010002

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