ML20086S143

Transmits Results of Design Basis Accident Analysis Which Provides Bounding Worst Case Offsite Dose Consequences for South Plant Vent Gaseous Particulate Release from Decontamination Solution Evaporator

ML20086S143
Person / Time
Site:	Hope Creek
Issue date:	07/25/1995
From:	Hagan J Public Service Enterprise Group
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
LR-N95113, NUDOCS 9508010114
Download: ML20086S143 (5)

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• Public Service Electric and Gas Cornpany Joseph J. Hogan Pubhc Service Electric and Gas Company P.O. Box 236, Hancocks Bridge, NJ 08038 609-339-1200 m , n, + ., o-.i.n. JUL 2 51995 LR-N95113 United _ States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen SOUTH PLANT VENT RADIOACTIVE RELEASE DESIGN BASIS ACCIDENT DOSE ANALYSIS FACILITY OPERATING LICENSE NPR-57 HOPE CREEK GENERATING STATION DOCKET NO. 50-354 On April 5, 1995, the Hope Creek Generating Station experienced an unplanned release of radiological material from the south plant vent. The purpose of this letter is to transmit the results of a design basis accident analysis which provides bounding worst case offsite dose consequences for a south plant vent gaseous particulate release from the decontamination solution evaporator. The results provided in Attachment 1 utilize conservative assumptions and follow the methodology outlined in applicable regulatory guides. As indicated in Attachment 1, the dose calculation results are well within the limits established in Regulatory Guide 1.3.

Please note that this information only supplements the in-depth operational assessments of radiological consequences previously completed by PSE&G.- Those evaluations were performed to determine regulatory compliance and to ensure that there were no significant radiological consequences.

A copy of this letter has been sent to the State of New Jersey.

Should you have any questions regarding this transmittal, please feel free to contact us.

Sincerely, I

1 Attachment (1)

O700TQ l 95'JB010114 950725 ph PdR ADDCK 05000354 P PDR l j

Document Control Desk JUL 2 51995 LR-N95113 ALL WITH ATTACHMENT:

C Mr. T. T. Martin, Administrator - Region I ,

U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 ,

l Mr. D. H. Moran, Licensing Project Manager - Hope Creek U. S. Nuclear Regulatory Commission One White Flint North $

Mail Stop 14E21 11555 Rockville Pike 1 Rockville, MD 20852 I Mr. R. Summers (SO9)

USNRC Senior Resident Inspector Mr. K. Tosch, Manager, IV NJ Department of Environmental Protection Division of Environmental Quality CN 415 Trenton, NJ 08625 l

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STATE OF NEW JERSEY ')

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CO NTY OF SALEM )

J. Hagan, being duly sworn according to law deposes and says:

i I am Vice President - Nuclear Operations of Public Service l Electric and Gas Company, and as such, I find the matters set  ;

forth in the above referenced letter, concerning the. Hope Creek Generating Station, are true to the best of my knowledge,. j information'and belief. l 1

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i Subscribed and Sworn to before me 't this 45 ' day of

/d6 , 1995  :

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Notary Public of New Jersey SHRIt..HUSTON l WW PUBLIC OF NEW JERSET c/

Ev Cansdssion Expires Dec. 30,197/ -

My Commission expires on

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ATTACHMENT 1 l

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.. . r Chehistry Support Calculation Results:

The following Table outlines the dose calculation results based ~

on the Chemistry Services evaluation. RG 1.3 only requires the adult thyroid and WB dose calculations.

Description Dose (mrem) Percent RG 1.3 Limit WB Gamma Dose 0.172 6.86E-04 Gamma Air Dose at Center of Infinite 0.348 1.39E-03 cloud Beta Skin Dose 0.053 2.13E-04 l Beta Air Dose at Center of Infinite Cloud 0.106 4.24E-04 Adult Thyroid (RG 1.3 Breathing Rate) 18.6 6.2E-03 Teen Thyroid (RG 1.3 Breathing rate) 23.5 7.83E-03 j Child Thyroid (RG 1.3 Breathing Rate) 59.4 1.98E-02 Infant Thyroid (RG 1.3 Breathing Rate) 144 4.79E-02 4

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