CY-05-045, Summary Report for 01/01/2003 - 12/31/2004

Summary Report for 01/01/2003 - 12/31/2004

ML050550099
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	02/17/2005
From:	Gerard van Noordennen Connecticut Yankee Atomic Power Co
To:	Document Control Desk, NRC/FSME
References
CY-05-045
Download: ML050550099 (6)

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.... I CONNECTICUT YANKEE ATOMIC POWER COMPANY zV iEByCUTHADDAM NECK PLANT 362 INJUN HOLLOW ROAD

• EAST HAMPTON, CT 06424-3099 FEB 17 2005 Docket No. 50-213 CY-05-045 Re: 10 CFR 50.59 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Haddam Neck Plant 10 CFR 50.59 Summary Report Pursuant to the provisions of 10 CFR 50.59(d)(2), Connecticut Yankee Atomic Power Company (CYAPCO) herein submits the attached report containing a brief description of any changes, tests, and experiments, and a summary evaluation. This report covers operations at the Haddam Neck Plant for the period of January 1, 2003 to December 31, 2004.

If you have any.questions, please con,tac.t me.at (860) 267-3938; ..

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Gerard P. van Noordennen Date Regulatory Affairs Manager

Attachment:

Summary Report for 10 CFR 50.59 cc: S. J. Collins, NRC Region I Administrator T. B. Smith, NRC Project Manager R. R. Bellamy, Chief, Decommissioning and Laboratory Branch, NRC Region

E:; L. Wilds,'Jr-, Director; CT:DEP.Monitoring and Radiation Division

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CY-05-045 Docket No. 50-213 HADDAM NECK PLANT Summary-Report

- For 10 CFR 50.59 January 1, 2003 through December 31, 2004

,z - t f 17CY-05-045 Haddam Neck Plant Summary Report I 10 CFR 50.59 Evaluation No. I Subject I SY- EV-03-001, Revision 2 Implementation of the NAC-MPC Storage System at Connecticut Yankee SY- EV-03-004, Revision 0 UFSAR Change for Circulatin Water System Abandonment

CY-05-045 10 CFR 50.59 Evaluation Number: SY-EV-03-001 Revision Number: 2 Activity/Document Number: 24265-500-DCP-00006 Revision Number: 1 Activity/Document

Title:

Implementation of the NAC-MPC Storage System at Connecticut Yankee A.

SUMMARY

INFORMATION (Note: This information is utilized to prepare the biennial report submitted pursuant to 10 CFR 50.59(d)(2).)

1. Proposed Activity Description This DCP implements the onsite activities required for the transfer and storage of spent fuel and greater than class C (GTCC) waste at Connecticut Yankee. The spent

- fuel and .GTCC waste will be transferred and stored in-the NAC-International-Multi- _

Purpose Canister. Spent fuel and GTCC waste will be stored in the& NAC-MPC system on the Independent Spent Fuel Storage Installation (ISFSI) facility pad, which will provide a secure, monitored storage area

2. Reason for Proposed Activity To allow decommissioning of the Connecticut Yankee plant to proceed, the spent fuel and GTCC waste need to be removed from the Spent Fuel Building and stored at the ISFSI.

3. Restrictions or Limitations of Evaluation This evaluation addresses the on site activities required to support the implementation of the NAC-MPC storage system at CY. Construction of the ISFSI (civil, electrical and instrumentation), the VCC's, the Spent Fuel Building Modifications, the yard crane upgrade and the yard crane trolley upgrade were implemented under other DCP's.

4. Summary of Evaluation

-This DCP can be implemented without a License Amendment: The activities related to this DCP involve loading fuel into the NAC-MPC canisters using existing fuel handling equipment and approved project procedures. The canisters will be lifted from the spent fuel pool in a transfer cask using the single failure proof handling system and in accordance with plant commitments to NUREG-0612. Loading fuel and GTCC waste, closure of the canister and transfer of the canister into a concrete cask have been evaluated and are controlled using approved project procedures.

Movement of the concrete cask out of the Spent Fuel Building, loading onto the heavy haul trailer and transfer to the ISFSI has been evaluated and load tests of the trailer and haul route satisfactorily performed. Storage of GTCC waste on the ISFSI pad is evaluated and is acceptable when stored in the NAC-MPC supplied canisters and concrete casks. The NAC-MPC system design and accidents are evaluated under 10 CFR 72. The 50.59 evaluations determined that the DCP activities are acceptable to implement.

• -o CY-05-045 10 CFR 50.59 Evaluation Number: SY-EV-03-004 Revision Number: 0 Activity/Document Number: --LBDCR # 8 Revision Number: 0 Activity/Document

Title:

UFSAR Change for Circulating Water System Abandonment A.

SUMMARY

INFORMATION [This information is utilized to prepare the biennial report submitted pursuant to 10 CFR 50.59(d)(2).]

1. Proposed Activity Description The UFSAR Section 11.2, "Liquid Radwaste Management System" presently states in Section 11.2.2 that "During (waste water) discharge, circulating water is

.--------------. run to-ensure the-waste :water-does-not become stagnant in.the discharge :canal."-

The Safety Department (SD) has recently performed analyses which take credit for tidal mixing of the discharge canal and has determined that dilution of waste water discharges by the circulating water system is not required. SD has revised the Radiological Effluent Monitoring & Offsite Dose Calculation Manual (REMODCM) to remove the requirement to run circulating water during waste water discharges.

This 10 CFR 50.59 Evaluation addresses the removal of the use of circulating water in conjunction with waste water discharges as described in the UFSAR.

This evaluation also provides a basis to abandon the remainder of the circulating water system. It also fulfills the requirement to revise 10 CFR 50.59 Evaluation SY-EV-97-0016 when any available portion of the circulating water system is recategorized to abandon.

This 10 CFR 50.59 Evaluation only addresses the removal of the use of circulating water as described in the UFSAR since all other proposed changes have been adequately dispositioned in the 10 CFR 50.59 screen.

2. Reason for Proposed Activity Dhas recently performed analyses-which-take-credit for tidal mixing of th-e^

DS discharge canal and has determined that dilution of waste water discharges by the circulating water system is not required. SD has revised the REMODCM to remove the requirement to run circulating water during waste water discharges.

Use of the circulating water system must be discontinued and the system must be abandoned to permit removal of the main steam condenser and associated support systems and to permit further decommissioning of the Turbine Building.

3. Restrictions or Limitations of Evaluation There are no restrictions or limitations on this evaluation. Waste water discharges are controlled by the REMODCM and plant procedures.

CY-05-045

4. Summary of Evaluation This 10 CFR 50.59 Evaluation addresses the removal of the use of circulating water in conjunction with waste water discharges as described in the UFSAR. This evaluation also provides a basis to abandon the remainder of the circulating water system. It fulfills the requirement to revise Safety Evaluation SY-EV-97-0016 when any available portion of the circulating water system is recategorized to abandon. This change has been determined to be safe and can be implemented without prior NRC approval.

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